]> git.ipfire.org Git - thirdparty/cups.git/blame - doc/help/cupspm.html
Changelog and dependencies updates.
[thirdparty/cups.git] / doc / help / cupspm.html
CommitLineData
798d6e29
MS
1<!doctype html>
2<html>
3<!-- SECTION: Programming -->
4 <head>
5 <title>CUPS Programming Manual</title>
6 <meta name="keywords" content="Programming">
7 <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
8 <meta name="creator" content="Mini-XML v2.11">
9 <meta name="author" content="Michael R Sweet">
9c44e2cb 10 <meta name="copyright" content="Copyright &#xa9; 2007-2017 by Apple Inc. All Rights Reserved.">
f1175a5a 11 <meta name="version" content="2.2.5">
798d6e29
MS
12 <style type="text/css"><!--
13body, p, h1, h2, h3, h4 {
14 font-family: sans-serif;
15}
16div.body h1 {
17 font-size: 250%;
18 font-weight: bold;
19 margin: 0;
20}
21div.body h2 {
22 font-size: 250%;
23 margin-top: 1.5em;
24}
25div.body h3 {
26 font-size: 150%;
27 margin-bottom: 0.5em;
28 margin-top: 1.5em;
29}
30div.body h4 {
31 font-size: 110%;
32 margin-bottom: 0.5em;
33 margin-top: 1.5em;
34}
35div.body h5 {
36 font-size: 100%;
37 margin-bottom: 0.5em;
38 margin-top: 1.5em;
39}
40div.contents {
41 background: #e8e8e8;
42 border: solid thin black;
43 padding: 10px;
44}
45div.contents h1 {
46 font-size: 110%;
47}
48div.contents h2 {
49 font-size: 100%;
50}
51div.contents ul.contents {
52 font-size: 80%;
53}
54.class {
55 border-bottom: solid 2px gray;
56}
57.constants {
58}
59.description {
60 margin-top: 0.5em;
61}
62.discussion {
63}
64.enumeration {
65 border-bottom: solid 2px gray;
66}
67.function {
68 border-bottom: solid 2px gray;
69 margin-bottom: 0;
70}
71.members {
72}
73.method {
74}
75.parameters {
76}
77.returnvalue {
78}
79.struct {
80 border-bottom: solid 2px gray;
81}
82.typedef {
83 border-bottom: solid 2px gray;
84}
85.union {
86 border-bottom: solid 2px gray;
87}
88.variable {
89}
9c44e2cb
MS
90h1, h2, h3, h4, h5, h6 {
91 page-break-inside: avoid;
92}
798d6e29
MS
93blockquote {
94 border: solid thin gray;
95 box-shadow: 3px 3px 5px rgba(0,0,0,0.5);
96 padding: 0px 10px;
97 page-break-inside: avoid;
98}
99p code, li code, p.code, pre, ul.code li {
100 background: rgba(127,127,127,0.1);
101 border: thin dotted gray;
102 font-family: monospace;
103 font-size: 90%;
104 hyphens: manual;
105 -webkit-hyphens: manual;
106 page-break-inside: avoid;
107}
108p.code, pre, ul.code li {
109 padding: 10px;
110}
111p code, li code {
112 padding: 2px 5px;
113}
114a:link, a:visited {
115 text-decoration: none;
116}
117span.info {
118 background: black;
119 border: solid thin black;
120 color: white;
121 font-size: 80%;
122 font-style: italic;
123 font-weight: bold;
124 white-space: nowrap;
125}
126h3 span.info, h4 span.info {
98d88c8d
MS
127 border-top-left-radius: 10px;
128 border-top-right-radius: 10px;
798d6e29 129 float: right;
98d88c8d 130 padding: 3px 6px;
798d6e29
MS
131}
132ul.code, ul.contents, ul.subcontents {
133 list-style-type: none;
134 margin: 0;
135 padding-left: 0;
136}
137ul.code li {
138 margin: 0;
139}
140ul.contents > li {
141 margin-top: 1em;
142}
143ul.contents li ul.code, ul.contents li ul.subcontents {
144 padding-left: 2em;
145}
98d88c8d
MS
146table.list {
147 border-collapse: collapse;
148 width: 100%;
798d6e29 149}
98d88c8d
MS
150table.list tr:nth-child(even) {
151 background: rgba(127,127,127,0.1);]n}
152table.list th {
153 border-right: 2px solid gray;
154 font-family: monospace;
155 padding: 5px 10px 5px 2px;
156 text-align: right;
157 vertical-align: top;
798d6e29 158}
98d88c8d
MS
159table.list td {
160 padding: 5px 2px 5px 10px;
161 text-align: left;
162 vertical-align: top;
798d6e29
MS
163}
164h1.title {
165}
166h2.title {
167 border-bottom: solid 2px black;
168}
169h3.title {
170 border-bottom: solid 2px black;
171}
172--></style>
173 </head>
174 <body>
175 <h1 class="title">CUPS Programming Manual</h1>
176 <p>Michael R Sweet</p>
9c44e2cb 177 <p>Copyright &#xa9; 2007-2017 by Apple Inc. All Rights Reserved.</p>
798d6e29
MS
178 <div class="contents">
179 <h2 class="title">Contents</h2>
180 <ul class="contents">
53af7f21
MS
181 <li><a href="#introduction">Introduction</a><ul class="subcontents">
182 <li><a href="#guidelines">Guidelines</a></li>
183 <li><a href="#terms-used-in-this-document">Terms Used in This Document</a></li>
184 <li><a href="#compiling-programs-that-use-the-cups-api">Compiling Programs That Use the CUPS API</a></li>
798d6e29 185 </ul></li>
53af7f21
MS
186 <li><a href="#working-with-destinations">Working with Destinations</a><ul class="subcontents">
187 <li><a href="#finding-available-destinations">Finding Available Destinations</a></li>
188 <li><a href="#basic-destination-information">Basic Destination Information</a></li>
189 <li><a href="#detailed-destination-information">Detailed Destination Information</a></li>
190 <li><a href="#submitting-a-print-job">Submitting a Print Job</a></li>
798d6e29 191 </ul></li>
b0fb2d75
MS
192 <li><a href="#sending-ipp-requests">Sending IPP Requests</a><ul class="subcontents">
193 <li><a href="#connecting-to-the-scheduler-or-printer">Connecting to the Scheduler or Printer</a></li>
194 <li><a href="#creating-an-ipp-request">Creating an IPP Request</a></li>
195 <li><a href="#sending-the-ipp-request">Sending the IPP Request</a></li>
196 <li><a href="#processing-the-ipp-response">Processing the IPP Response</a></li>
197 <li><a href="#authentication">Authentication</a></li>
198 </ul></li>
798d6e29
MS
199 <li><a href="#FUNCTIONS">Functions</a><ul class="subcontents">
200 <li><a href="#cupsAddDest">cupsAddDest</a></li>
63b75fbe 201 <li><a href="#cupsAddDestMediaOptions">cupsAddDestMediaOptions</a></li>
53af7f21 202 <li><a href="#cupsAddIntegerOption">cupsAddIntegerOption</a></li>
798d6e29 203 <li><a href="#cupsAddOption">cupsAddOption</a></li>
798d6e29 204 <li><a href="#cupsCancelDestJob">cupsCancelDestJob</a></li>
798d6e29
MS
205 <li><a href="#cupsCheckDestSupported">cupsCheckDestSupported</a></li>
206 <li><a href="#cupsCloseDestJob">cupsCloseDestJob</a></li>
207 <li><a href="#cupsConnectDest">cupsConnectDest</a></li>
798d6e29
MS
208 <li><a href="#cupsCopyDest">cupsCopyDest</a></li>
209 <li><a href="#cupsCopyDestConflicts">cupsCopyDestConflicts</a></li>
210 <li><a href="#cupsCopyDestInfo">cupsCopyDestInfo</a></li>
211 <li><a href="#cupsCreateDestJob">cupsCreateDestJob</a></li>
798d6e29
MS
212 <li><a href="#cupsDoAuthentication">cupsDoAuthentication</a></li>
213 <li><a href="#cupsEncodeOptions">cupsEncodeOptions</a></li>
214 <li><a href="#cupsEncodeOptions2">cupsEncodeOptions2</a></li>
215 <li><a href="#cupsEncryption">cupsEncryption</a></li>
216 <li><a href="#cupsEnumDests">cupsEnumDests</a></li>
798d6e29
MS
217 <li><a href="#cupsFindDestDefault">cupsFindDestDefault</a></li>
218 <li><a href="#cupsFindDestReady">cupsFindDestReady</a></li>
219 <li><a href="#cupsFindDestSupported">cupsFindDestSupported</a></li>
220 <li><a href="#cupsFinishDestDocument">cupsFinishDestDocument</a></li>
798d6e29
MS
221 <li><a href="#cupsFreeDestInfo">cupsFreeDestInfo</a></li>
222 <li><a href="#cupsFreeDests">cupsFreeDests</a></li>
223 <li><a href="#cupsFreeJobs">cupsFreeJobs</a></li>
224 <li><a href="#cupsFreeOptions">cupsFreeOptions</a></li>
798d6e29
MS
225 <li><a href="#cupsGetDest">cupsGetDest</a></li>
226 <li><a href="#cupsGetDestMediaByIndex">cupsGetDestMediaByIndex</a></li>
227 <li><a href="#cupsGetDestMediaByName">cupsGetDestMediaByName</a></li>
228 <li><a href="#cupsGetDestMediaBySize">cupsGetDestMediaBySize</a></li>
229 <li><a href="#cupsGetDestMediaCount">cupsGetDestMediaCount</a></li>
230 <li><a href="#cupsGetDestMediaDefault">cupsGetDestMediaDefault</a></li>
231 <li><a href="#cupsGetDestWithURI">cupsGetDestWithURI</a></li>
98d88c8d 232 <li><a href="#cupsGetDests2">cupsGetDests2</a></li>
53af7f21 233 <li><a href="#cupsGetIntegerOption">cupsGetIntegerOption</a></li>
798d6e29
MS
234 <li><a href="#cupsGetJobs2">cupsGetJobs2</a></li>
235 <li><a href="#cupsGetNamedDest">cupsGetNamedDest</a></li>
236 <li><a href="#cupsGetOption">cupsGetOption</a></li>
798d6e29 237 <li><a href="#cupsGetPassword2">cupsGetPassword2</a></li>
798d6e29
MS
238 <li><a href="#cupsLocalizeDestMedia">cupsLocalizeDestMedia</a></li>
239 <li><a href="#cupsLocalizeDestOption">cupsLocalizeDestOption</a></li>
240 <li><a href="#cupsLocalizeDestValue">cupsLocalizeDestValue</a></li>
241 <li><a href="#cupsMakeServerCredentials">cupsMakeServerCredentials</a></li>
798d6e29 242 <li><a href="#cupsParseOptions">cupsParseOptions</a></li>
798d6e29
MS
243 <li><a href="#cupsRemoveDest">cupsRemoveDest</a></li>
244 <li><a href="#cupsRemoveOption">cupsRemoveOption</a></li>
245 <li><a href="#cupsServer">cupsServer</a></li>
246 <li><a href="#cupsSetClientCertCB">cupsSetClientCertCB</a></li>
247 <li><a href="#cupsSetCredentials">cupsSetCredentials</a></li>
248 <li><a href="#cupsSetDefaultDest">cupsSetDefaultDest</a></li>
798d6e29
MS
249 <li><a href="#cupsSetDests2">cupsSetDests2</a></li>
250 <li><a href="#cupsSetEncryption">cupsSetEncryption</a></li>
798d6e29
MS
251 <li><a href="#cupsSetPasswordCB2">cupsSetPasswordCB2</a></li>
252 <li><a href="#cupsSetServer">cupsSetServer</a></li>
253 <li><a href="#cupsSetServerCertCB">cupsSetServerCertCB</a></li>
254 <li><a href="#cupsSetServerCredentials">cupsSetServerCredentials</a></li>
255 <li><a href="#cupsSetUser">cupsSetUser</a></li>
256 <li><a href="#cupsSetUserAgent">cupsSetUserAgent</a></li>
257 <li><a href="#cupsStartDestDocument">cupsStartDestDocument</a></li>
798d6e29
MS
258 <li><a href="#cupsUser">cupsUser</a></li>
259 <li><a href="#cupsUserAgent">cupsUserAgent</a></li>
260 <li><a href="#httpAcceptConnection">httpAcceptConnection</a></li>
261 <li><a href="#httpAddCredential">httpAddCredential</a></li>
262 <li><a href="#httpAddrAny">httpAddrAny</a></li>
263 <li><a href="#httpAddrClose">httpAddrClose</a></li>
798d6e29
MS
264 <li><a href="#httpAddrConnect2">httpAddrConnect2</a></li>
265 <li><a href="#httpAddrCopyList">httpAddrCopyList</a></li>
266 <li><a href="#httpAddrEqual">httpAddrEqual</a></li>
267 <li><a href="#httpAddrFamily">httpAddrFamily</a></li>
268 <li><a href="#httpAddrFreeList">httpAddrFreeList</a></li>
269 <li><a href="#httpAddrGetList">httpAddrGetList</a></li>
270 <li><a href="#httpAddrLength">httpAddrLength</a></li>
271 <li><a href="#httpAddrListen">httpAddrListen</a></li>
272 <li><a href="#httpAddrLocalhost">httpAddrLocalhost</a></li>
273 <li><a href="#httpAddrLookup">httpAddrLookup</a></li>
274 <li><a href="#httpAddrPort">httpAddrPort</a></li>
275 <li><a href="#httpAddrString">httpAddrString</a></li>
276 <li><a href="#httpAssembleURI">httpAssembleURI</a></li>
277 <li><a href="#httpAssembleURIf">httpAssembleURIf</a></li>
278 <li><a href="#httpAssembleUUID">httpAssembleUUID</a></li>
279 <li><a href="#httpBlocking">httpBlocking</a></li>
280 <li><a href="#httpCheck">httpCheck</a></li>
281 <li><a href="#httpClearCookie">httpClearCookie</a></li>
282 <li><a href="#httpClearFields">httpClearFields</a></li>
283 <li><a href="#httpClose">httpClose</a></li>
284 <li><a href="#httpCompareCredentials">httpCompareCredentials</a></li>
798d6e29 285 <li><a href="#httpConnect2">httpConnect2</a></li>
798d6e29
MS
286 <li><a href="#httpCopyCredentials">httpCopyCredentials</a></li>
287 <li><a href="#httpCredentialsAreValidForName">httpCredentialsAreValidForName</a></li>
288 <li><a href="#httpCredentialsGetExpiration">httpCredentialsGetExpiration</a></li>
289 <li><a href="#httpCredentialsGetTrust">httpCredentialsGetTrust</a></li>
290 <li><a href="#httpCredentialsString">httpCredentialsString</a></li>
798d6e29
MS
291 <li><a href="#httpDecode64_2">httpDecode64_2</a></li>
292 <li><a href="#httpDelete">httpDelete</a></li>
798d6e29
MS
293 <li><a href="#httpEncode64_2">httpEncode64_2</a></li>
294 <li><a href="#httpEncryption">httpEncryption</a></li>
295 <li><a href="#httpError">httpError</a></li>
296 <li><a href="#httpFieldValue">httpFieldValue</a></li>
297 <li><a href="#httpFlush">httpFlush</a></li>
298 <li><a href="#httpFlushWrite">httpFlushWrite</a></li>
299 <li><a href="#httpFreeCredentials">httpFreeCredentials</a></li>
300 <li><a href="#httpGet">httpGet</a></li>
301 <li><a href="#httpGetActivity">httpGetActivity</a></li>
302 <li><a href="#httpGetAddress">httpGetAddress</a></li>
303 <li><a href="#httpGetAuthString">httpGetAuthString</a></li>
304 <li><a href="#httpGetBlocking">httpGetBlocking</a></li>
305 <li><a href="#httpGetContentEncoding">httpGetContentEncoding</a></li>
306 <li><a href="#httpGetCookie">httpGetCookie</a></li>
798d6e29
MS
307 <li><a href="#httpGetDateString2">httpGetDateString2</a></li>
308 <li><a href="#httpGetDateTime">httpGetDateTime</a></li>
309 <li><a href="#httpGetEncryption">httpGetEncryption</a></li>
310 <li><a href="#httpGetExpect">httpGetExpect</a></li>
311 <li><a href="#httpGetFd">httpGetFd</a></li>
312 <li><a href="#httpGetField">httpGetField</a></li>
798d6e29
MS
313 <li><a href="#httpGetHostname">httpGetHostname</a></li>
314 <li><a href="#httpGetKeepAlive">httpGetKeepAlive</a></li>
798d6e29
MS
315 <li><a href="#httpGetLength2">httpGetLength2</a></li>
316 <li><a href="#httpGetPending">httpGetPending</a></li>
317 <li><a href="#httpGetReady">httpGetReady</a></li>
318 <li><a href="#httpGetRemaining">httpGetRemaining</a></li>
319 <li><a href="#httpGetState">httpGetState</a></li>
320 <li><a href="#httpGetStatus">httpGetStatus</a></li>
798d6e29
MS
321 <li><a href="#httpGetSubField2">httpGetSubField2</a></li>
322 <li><a href="#httpGetVersion">httpGetVersion</a></li>
323 <li><a href="#httpGets">httpGets</a></li>
324 <li><a href="#httpHead">httpHead</a></li>
325 <li><a href="#httpInitialize">httpInitialize</a></li>
326 <li><a href="#httpIsChunked">httpIsChunked</a></li>
327 <li><a href="#httpIsEncrypted">httpIsEncrypted</a></li>
328 <li><a href="#httpLoadCredentials">httpLoadCredentials</a></li>
329 <li><a href="#httpOptions">httpOptions</a></li>
330 <li><a href="#httpPeek">httpPeek</a></li>
331 <li><a href="#httpPost">httpPost</a></li>
332 <li><a href="#httpPut">httpPut</a></li>
798d6e29
MS
333 <li><a href="#httpRead2">httpRead2</a></li>
334 <li><a href="#httpReadRequest">httpReadRequest</a></li>
798d6e29
MS
335 <li><a href="#httpReconnect2">httpReconnect2</a></li>
336 <li><a href="#httpResolveHostname">httpResolveHostname</a></li>
337 <li><a href="#httpSaveCredentials">httpSaveCredentials</a></li>
798d6e29
MS
338 <li><a href="#httpSeparateURI">httpSeparateURI</a></li>
339 <li><a href="#httpSetAuthString">httpSetAuthString</a></li>
340 <li><a href="#httpSetCookie">httpSetCookie</a></li>
341 <li><a href="#httpSetCredentials">httpSetCredentials</a></li>
342 <li><a href="#httpSetDefaultField">httpSetDefaultField</a></li>
343 <li><a href="#httpSetExpect">httpSetExpect</a></li>
344 <li><a href="#httpSetField">httpSetField</a></li>
345 <li><a href="#httpSetKeepAlive">httpSetKeepAlive</a></li>
346 <li><a href="#httpSetLength">httpSetLength</a></li>
347 <li><a href="#httpSetTimeout">httpSetTimeout</a></li>
348 <li><a href="#httpShutdown">httpShutdown</a></li>
349 <li><a href="#httpStateString">httpStateString</a></li>
350 <li><a href="#httpStatus">httpStatus</a></li>
798d6e29
MS
351 <li><a href="#httpURIStatusString">httpURIStatusString</a></li>
352 <li><a href="#httpUpdate">httpUpdate</a></li>
353 <li><a href="#httpWait">httpWait</a></li>
798d6e29
MS
354 <li><a href="#httpWrite2">httpWrite2</a></li>
355 <li><a href="#httpWriteResponse">httpWriteResponse</a></li>
356 <li><a href="#ippAddBoolean">ippAddBoolean</a></li>
357 <li><a href="#ippAddBooleans">ippAddBooleans</a></li>
358 <li><a href="#ippAddCollection">ippAddCollection</a></li>
359 <li><a href="#ippAddCollections">ippAddCollections</a></li>
360 <li><a href="#ippAddDate">ippAddDate</a></li>
361 <li><a href="#ippAddInteger">ippAddInteger</a></li>
362 <li><a href="#ippAddIntegers">ippAddIntegers</a></li>
363 <li><a href="#ippAddOctetString">ippAddOctetString</a></li>
364 <li><a href="#ippAddOutOfBand">ippAddOutOfBand</a></li>
365 <li><a href="#ippAddRange">ippAddRange</a></li>
366 <li><a href="#ippAddRanges">ippAddRanges</a></li>
367 <li><a href="#ippAddResolution">ippAddResolution</a></li>
368 <li><a href="#ippAddResolutions">ippAddResolutions</a></li>
369 <li><a href="#ippAddSeparator">ippAddSeparator</a></li>
370 <li><a href="#ippAddString">ippAddString</a></li>
371 <li><a href="#ippAddStringf">ippAddStringf</a></li>
372 <li><a href="#ippAddStringfv">ippAddStringfv</a></li>
373 <li><a href="#ippAddStrings">ippAddStrings</a></li>
374 <li><a href="#ippAttributeString">ippAttributeString</a></li>
375 <li><a href="#ippContainsInteger">ippContainsInteger</a></li>
376 <li><a href="#ippContainsString">ippContainsString</a></li>
377 <li><a href="#ippCopyAttribute">ippCopyAttribute</a></li>
378 <li><a href="#ippCopyAttributes">ippCopyAttributes</a></li>
379 <li><a href="#ippCreateRequestedArray">ippCreateRequestedArray</a></li>
380 <li><a href="#ippDateToTime">ippDateToTime</a></li>
381 <li><a href="#ippDelete">ippDelete</a></li>
382 <li><a href="#ippDeleteAttribute">ippDeleteAttribute</a></li>
383 <li><a href="#ippDeleteValues">ippDeleteValues</a></li>
384 <li><a href="#ippEnumString">ippEnumString</a></li>
385 <li><a href="#ippEnumValue">ippEnumValue</a></li>
386 <li><a href="#ippErrorString">ippErrorString</a></li>
387 <li><a href="#ippErrorValue">ippErrorValue</a></li>
388 <li><a href="#ippFindAttribute">ippFindAttribute</a></li>
389 <li><a href="#ippFindNextAttribute">ippFindNextAttribute</a></li>
390 <li><a href="#ippFirstAttribute">ippFirstAttribute</a></li>
391 <li><a href="#ippGetBoolean">ippGetBoolean</a></li>
392 <li><a href="#ippGetCollection">ippGetCollection</a></li>
393 <li><a href="#ippGetCount">ippGetCount</a></li>
394 <li><a href="#ippGetDate">ippGetDate</a></li>
395 <li><a href="#ippGetGroupTag">ippGetGroupTag</a></li>
396 <li><a href="#ippGetInteger">ippGetInteger</a></li>
397 <li><a href="#ippGetName">ippGetName</a></li>
398 <li><a href="#ippGetOctetString">ippGetOctetString</a></li>
399 <li><a href="#ippGetOperation">ippGetOperation</a></li>
400 <li><a href="#ippGetRange">ippGetRange</a></li>
401 <li><a href="#ippGetRequestId">ippGetRequestId</a></li>
402 <li><a href="#ippGetResolution">ippGetResolution</a></li>
403 <li><a href="#ippGetState">ippGetState</a></li>
404 <li><a href="#ippGetStatusCode">ippGetStatusCode</a></li>
405 <li><a href="#ippGetString">ippGetString</a></li>
406 <li><a href="#ippGetValueTag">ippGetValueTag</a></li>
407 <li><a href="#ippGetVersion">ippGetVersion</a></li>
408 <li><a href="#ippLength">ippLength</a></li>
409 <li><a href="#ippNew">ippNew</a></li>
410 <li><a href="#ippNewRequest">ippNewRequest</a></li>
411 <li><a href="#ippNewResponse">ippNewResponse</a></li>
412 <li><a href="#ippNextAttribute">ippNextAttribute</a></li>
413 <li><a href="#ippOpString">ippOpString</a></li>
414 <li><a href="#ippOpValue">ippOpValue</a></li>
415 <li><a href="#ippPort">ippPort</a></li>
416 <li><a href="#ippRead">ippRead</a></li>
417 <li><a href="#ippReadFile">ippReadFile</a></li>
418 <li><a href="#ippReadIO">ippReadIO</a></li>
419 <li><a href="#ippSetBoolean">ippSetBoolean</a></li>
420 <li><a href="#ippSetCollection">ippSetCollection</a></li>
421 <li><a href="#ippSetDate">ippSetDate</a></li>
422 <li><a href="#ippSetGroupTag">ippSetGroupTag</a></li>
423 <li><a href="#ippSetInteger">ippSetInteger</a></li>
424 <li><a href="#ippSetName">ippSetName</a></li>
425 <li><a href="#ippSetOctetString">ippSetOctetString</a></li>
426 <li><a href="#ippSetOperation">ippSetOperation</a></li>
427 <li><a href="#ippSetPort">ippSetPort</a></li>
428 <li><a href="#ippSetRange">ippSetRange</a></li>
429 <li><a href="#ippSetRequestId">ippSetRequestId</a></li>
430 <li><a href="#ippSetResolution">ippSetResolution</a></li>
431 <li><a href="#ippSetState">ippSetState</a></li>
432 <li><a href="#ippSetStatusCode">ippSetStatusCode</a></li>
433 <li><a href="#ippSetString">ippSetString</a></li>
434 <li><a href="#ippSetStringf">ippSetStringf</a></li>
435 <li><a href="#ippSetStringfv">ippSetStringfv</a></li>
436 <li><a href="#ippSetValueTag">ippSetValueTag</a></li>
437 <li><a href="#ippSetVersion">ippSetVersion</a></li>
438 <li><a href="#ippStateString">ippStateString</a></li>
439 <li><a href="#ippTagString">ippTagString</a></li>
440 <li><a href="#ippTagValue">ippTagValue</a></li>
441 <li><a href="#ippTimeToDate">ippTimeToDate</a></li>
442 <li><a href="#ippValidateAttribute">ippValidateAttribute</a></li>
443 <li><a href="#ippValidateAttributes">ippValidateAttributes</a></li>
444 <li><a href="#ippWrite">ippWrite</a></li>
445 <li><a href="#ippWriteFile">ippWriteFile</a></li>
446 <li><a href="#ippWriteIO">ippWriteIO</a></li>
798d6e29
MS
447 </ul></li>
448 <li><a href="#TYPES">Data Types</a><ul class="subcontents">
798d6e29 449 <li><a href="#cups_client_cert_cb_t">cups_client_cert_cb_t</a></li>
798d6e29
MS
450 <li><a href="#cups_dest_cb_t">cups_dest_cb_t</a></li>
451 <li><a href="#cups_dest_t">cups_dest_t</a></li>
452 <li><a href="#cups_dinfo_t">cups_dinfo_t</a></li>
798d6e29 453 <li><a href="#cups_job_t">cups_job_t</a></li>
798d6e29
MS
454 <li><a href="#cups_option_t">cups_option_t</a></li>
455 <li><a href="#cups_password_cb2_t">cups_password_cb2_t</a></li>
798d6e29
MS
456 <li><a href="#cups_ptype_t">cups_ptype_t</a></li>
457 <li><a href="#cups_server_cert_cb_t">cups_server_cert_cb_t</a></li>
458 <li><a href="#cups_size_t">cups_size_t</a></li>
798d6e29 459 <li><a href="#http_addr_t">http_addr_t</a></li>
798d6e29
MS
460 <li><a href="#http_encoding_t">http_encoding_t</a></li>
461 <li><a href="#http_encryption_t">http_encryption_t</a></li>
462 <li><a href="#http_field_t">http_field_t</a></li>
463 <li><a href="#http_keepalive_t">http_keepalive_t</a></li>
464 <li><a href="#http_state_t">http_state_t</a></li>
465 <li><a href="#http_t">http_t</a></li>
466 <li><a href="#http_timeout_cb_t">http_timeout_cb_t</a></li>
467 <li><a href="#http_trust_t">http_trust_t</a></li>
468 <li><a href="#http_uri_coding_t">http_uri_coding_t</a></li>
469 <li><a href="#http_uri_status_t">http_uri_status_t</a></li>
798d6e29
MS
470 <li><a href="#ipp_attribute_t">ipp_attribute_t</a></li>
471 <li><a href="#ipp_copycb_t">ipp_copycb_t</a></li>
798d6e29 472 <li><a href="#ipp_iocb_t">ipp_iocb_t</a></li>
798d6e29
MS
473 <li><a href="#ipp_orient_t">ipp_orient_t</a></li>
474 <li><a href="#ipp_pstate_t">ipp_pstate_t</a></li>
475 <li><a href="#ipp_quality_t">ipp_quality_t</a></li>
476 <li><a href="#ipp_res_t">ipp_res_t</a></li>
477 <li><a href="#ipp_state_t">ipp_state_t</a></li>
478 <li><a href="#ipp_t">ipp_t</a></li>
798d6e29
MS
479 </ul></li>
480 <li><a href="#STRUCTURES">Structures</a><ul class="subcontents">
798d6e29
MS
481 <li><a href="#cups_dest_s">cups_dest_s</a></li>
482 <li><a href="#cups_job_s">cups_job_s</a></li>
798d6e29
MS
483 <li><a href="#cups_option_s">cups_option_s</a></li>
484 <li><a href="#cups_size_s">cups_size_s</a></li>
798d6e29 485 </ul></li>
798d6e29 486 <li><a href="#ENUMERATIONS">Enumerations</a><ul class="subcontents">
798d6e29 487 <li><a href="#cups_ptype_e">cups_ptype_e</a></li>
798d6e29
MS
488 <li><a href="#http_encoding_e">http_encoding_e</a></li>
489 <li><a href="#http_encryption_e">http_encryption_e</a></li>
490 <li><a href="#http_field_e">http_field_e</a></li>
491 <li><a href="#http_keepalive_e">http_keepalive_e</a></li>
492 <li><a href="#http_state_e">http_state_e</a></li>
493 <li><a href="#http_status_e">http_status_e</a></li>
494 <li><a href="#http_trust_e">http_trust_e</a></li>
495 <li><a href="#http_uri_coding_e">http_uri_coding_e</a></li>
496 <li><a href="#http_uri_status_e">http_uri_status_e</a></li>
798d6e29 497 <li><a href="#ipp_finishings_e">ipp_finishings_e</a></li>
798d6e29
MS
498 <li><a href="#ipp_jstate_e">ipp_jstate_e</a></li>
499 <li><a href="#ipp_op_e">ipp_op_e</a></li>
500 <li><a href="#ipp_orient_e">ipp_orient_e</a></li>
501 <li><a href="#ipp_pstate_e">ipp_pstate_e</a></li>
502 <li><a href="#ipp_quality_e">ipp_quality_e</a></li>
503 <li><a href="#ipp_res_e">ipp_res_e</a></li>
504 <li><a href="#ipp_state_e">ipp_state_e</a></li>
505 <li><a href="#ipp_status_e">ipp_status_e</a></li>
506 <li><a href="#ipp_tag_e">ipp_tag_e</a></li>
507 </ul></li>
508 </ul>
509 </div>
510 <div class="body">
511 <blockquote>
1da024d1 512 <p>Please <a href="https://github.com/apple/cups/issues">file issues on Github</a> to provide feedback on this document.</p>
798d6e29 513</blockquote>
53af7f21 514 <h2><a id="introduction">Introduction</a></h2>
798d6e29
MS
515 <p>CUPS provides the &quot;cups&quot; library to talk to the different parts of CUPS and with Internet Printing Protocol (IPP) printers. The &quot;cups&quot; library functions are accessed by including the <code>&lt;cups/cups.h&gt;</code> header.</p>
516 <p>CUPS is based on the Internet Printing Protocol (&quot;IPP&quot;), which allows clients (applications) to communicate with a server (the scheduler, printers, etc.) to get a list of destinations, send print jobs, and so forth. You identify which server you want to communicate with using a pointer to the opaque structure <code>http_t</code>. The <code>CUPS_HTTP_DEFAULT</code> constant can be used when you want to talk to the CUPS scheduler.</p>
53af7f21 517 <h3><a id="guidelines">Guidelines</a></h3>
798d6e29
MS
518 <p>When writing software that uses the &quot;cups&quot; library:</p>
519 <ul>
520 <li>Do not use undocumented or deprecated APIs,</li>
521 <li>Do not rely on pre-configured printers,</li>
522 <li>Do not assume that printers support specific features or formats, and</li>
523 <li>Do not rely on implementation details (PPDs, etc.)</li>
524</ul>
525 <p>CUPS is designed to insulate users and developers from the implementation details of printers and file formats. The goal is to allow an application to supply a print file in a standard format with the user intent (&quot;print four copies, two-sided on A4 media, and staple each copy&quot;) and have the printing system manage the printer communication and format conversion needed.</p>
526 <p>Similarly, printer and job management applications can use standard query operations to obtain the status information in a common, generic form and use standard management operations to control the state of those printers and jobs.</p>
53af7f21 527 <h3><a id="terms-used-in-this-document">Terms Used in This Document</a></h3>
9c44e2cb 528 <p>A <em>Destination</em> is a printer or print queue that accepts print jobs. A <em>Print</em> <em>Job</em> is one or more documents that are processed by a destination using options supplied when creating the job. A <em>Document</em> is a file (JPEG image, PDF file, etc.) suitable for printing. An <em>Option</em> controls some aspect of printing, such as the media used. <em>Media</em> is the sheets or roll that is printed on. An <em>Attribute</em> is an option encoded for an Internet Printing Protocol (IPP) request.</p>
53af7f21 529 <h3><a id="compiling-programs-that-use-the-cups-api">Compiling Programs That Use the CUPS API</a></h3>
798d6e29
MS
530 <p>The CUPS libraries can be used from any C, C++, or Objective C program. The method of compiling against the libraries varies depending on the operating system and installation of CUPS. The following sections show how to compile a simple program (shown below) in two common environments.</p>
531 <p>The following simple program lists the available destinations:</p>
532 <pre><code>#include &lt;stdio.h&gt;
533#include &lt;cups/cups.h&gt;
534
535int print_dest(void *user_data, unsigned flags, cups_dest_t *dest)
536{
537 if (dest-&gt;instance)
538 printf(&quot;%s/%s\n&quot;, dest-&gt;name, dest-&gt;instance);
539 else
540 puts(dest-&gt;name);
541
542 return (1);
543}
544
545int main(void)
546{
547 cupsEnumDests(CUPS_DEST_FLAGS_NONE, 1000, NULL, 0, 0, print_dest, NULL);
548
549 return (0);
550}
551</code></pre>
53af7f21 552 <h4><a id="compiling-with-xcode">Compiling with Xcode</a></h4>
9c44e2cb
MS
553 <p>In Xcode, choose <em>New</em> <em>Project...</em> from the <em>File</em> menu (or press SHIFT+CMD+N), then select the <em>Command</em> <em>Line</em> <em>Tool</em> under the macOS Application project type. Click <em>Next</em> and enter a name for the project, for example &quot;firstcups&quot;. Click <em>Next</em> and choose a project directory. The click <em>Next</em> to create the project.</p>
554 <p>In the project window, click on the <em>Build</em> <em>Phases</em> group and expand the <em>Link</em> <em>Binary</em> <em>with</em> <em>Libraries</em> section. Click <em>+</em>, type &quot;libcups&quot; to show the library, and then double-click on <code>libcups.tbd</code>.</p>
798d6e29 555 <p>Finally, click on the <code>main.c</code> file in the sidebar and copy the example program to the file. Build and run (CMD+R) to see the list of destinations.</p>
53af7f21 556 <h4><a id="compiling-with-gcc">Compiling with GCC</a></h4>
798d6e29
MS
557 <p>From the command-line, create a file called <code>sample.c</code> using your favorite editor, copy the example to this file, and save. Then run the following command to compile it with GCC and run it:</p>
558 <pre><code>gcc -o simple `cups-config --cflags` simple.c `cups-config --libs`
559./simple
560</code></pre>
9c44e2cb 561 <p>The <code>cups-config</code> command provides the compiler flags (<code>cups-config --cflags</code>) and libraries (<code>cups-config --libs</code>) needed for the local system.</p>
53af7f21 562 <h2><a id="working-with-destinations">Working with Destinations</a></h2>
9c44e2cb 563 <p>Destinations, which in CUPS represent individual printers or classes (collections or pools) of printers, are represented by the <code>cups_dest_t</code> structure which includes the name (<code>name</code>), instance (<code>instance</code>, saved options/settings), whether the destination is the default for the user (<code>is_default</code>), and the options and basic information associated with that destination (<code>num_options</code> and <code>options</code>).</p>
798d6e29 564 <p>Historically destinations have been manually maintained by the administrator of a system or network, but CUPS also supports dynamic discovery of destinations on the current network.</p>
53af7f21 565 <h3><a id="finding-available-destinations">Finding Available Destinations</a></h3>
798d6e29
MS
566 <p>The <code>cupsEnumDests</code> function finds all of the available destinations:</p>
567 <pre><code> int
568 cupsEnumDests(unsigned flags, int msec, int *cancel,
569 cups_ptype_t type, cups_ptype_t mask,
570 cups_dest_cb_t cb, void *user_data)
571</code></pre>
572 <p>The <code>flags</code> argument specifies enumeration options, which at present must be <code>CUPS_DEST_FLAGS_NONE</code>.</p>
573 <p>The <code>msec</code> argument specifies the maximum amount of time that should be used for enumeration in milliseconds - interactive applications should keep this value to 5000 or less when run on the main thread.</p>
574 <p>The <code>cancel</code> argument points to an integer variable that, when set to a non-zero value, will cause enumeration to stop as soon as possible. It can be <code>NULL</code> if not needed.</p>
53af7f21 575 <p>The <code>type</code> and <code>mask</code> arguments are bitfields that allow the caller to filter the destinations based on categories and/or capabilities. The destination's &quot;printer-type&quot; value is masked by the <code>mask</code> value and compared to the <code>type</code> value when filtering. For example, to only enumerate destinations that are hosted on the local system, pass <code>CUPS_PRINTER_LOCAL</code> for the <code>type</code> argument and <code>CUPS_PRINTER_DISCOVERED</code> for the <code>mask</code> argument. The following constants can be used for filtering:</p>
798d6e29
MS
576 <ul>
577 <li><code>CUPS_PRINTER_CLASS</code>: A collection of destinations.</li>
578 <li><code>CUPS_PRINTER_FAX</code>: A facsimile device.</li>
53af7f21
MS
579 <li><code>CUPS_PRINTER_LOCAL</code>: A local printer or class. This constant has the value 0 (no bits set) and is only used for the <code>type</code> argument and is paired with the <code>CUPS_PRINTER_REMOTE</code> or <code>CUPS_PRINTER_DISCOVERED</code> constant passed in the <code>mask</code> argument.</li>
580 <li><code>CUPS_PRINTER_REMOTE</code>: A remote (shared) printer or class.</li>
581 <li><code>CUPS_PRINTER_DISCOVERED</code>: An available network printer or class.</li>
798d6e29
MS
582 <li><code>CUPS_PRINTER_BW</code>: Can do B&amp;W printing.</li>
583 <li><code>CUPS_PRINTER_COLOR</code>: Can do color printing.</li>
584 <li><code>CUPS_PRINTER_DUPLEX</code>: Can do two-sided printing.</li>
585 <li><code>CUPS_PRINTER_STAPLE</code>: Can staple output.</li>
586 <li><code>CUPS_PRINTER_COLLATE</code>: Can quickly collate copies.</li>
587 <li><code>CUPS_PRINTER_PUNCH</code>: Can punch output.</li>
588 <li><code>CUPS_PRINTER_COVER</code>: Can cover output.</li>
589 <li><code>CUPS_PRINTER_BIND</code>: Can bind output.</li>
590 <li><code>CUPS_PRINTER_SORT</code>: Can sort output (mailboxes, etc.)</li>
591 <li><code>CUPS_PRINTER_SMALL</code>: Can print on Letter/Legal/A4-size media.</li>
592 <li><code>CUPS_PRINTER_MEDIUM</code>: Can print on Tabloid/B/C/A3/A2-size media.</li>
593 <li><code>CUPS_PRINTER_LARGE</code>: Can print on D/E/A1/A0-size media.</li>
594 <li><code>CUPS_PRINTER_VARIABLE</code>: Can print on rolls and custom-size media.</li>
595</ul>
596 <p>The <code>cb</code> argument specifies a function to call for every destination that is found:</p>
597 <pre><code>typedef int (*cups_dest_cb_t)(void *user_data,
598 unsigned flags,
599 cups_dest_t *dest);
600</code></pre>
9c44e2cb 601 <p>The callback function receives a copy of the <code>user_data</code> argument along with a bitfield (<code>flags</code>) and the destination that was found. The <code>flags</code> argument can have any of the following constant (bit) values set:</p>
798d6e29
MS
602 <ul>
603 <li><code>CUPS_DEST_FLAGS_MORE</code>: There are more destinations coming.</li>
604 <li><code>CUPS_DEST_FLAGS_REMOVED</code>: The destination has gone away and should be removed from the list of destinations a user can select.</li>
605 <li><code>CUPS_DEST_FLAGS_ERROR</code>: An error occurred. The reason for the error can be found by calling the <code>cupsLastError</code> and/or <code>cupsLastErrorString</code> functions.</li>
606</ul>
607 <p>The callback function returns 0 to stop enumeration or 1 to continue.</p>
718ee2ff
MS
608 <blockquote>
609 <p>Note that the callback function will likely be called multiple times for the same destination, so it is up to the caller to suppress any duplicate destinations.</p>
610</blockquote>
798d6e29
MS
611 <p>The following example shows how to use <code>cupsEnumDests</code> to get a filtered array of destinations:</p>
612 <pre><code>typedef struct
613{
614 int num_dests;
615 cups_dest_t *dests;
616} my_user_data_t;
617
618int
619my_dest_cb(my_user_data_t *user_data, unsigned flags,
620 cups_dest_t *dest)
621{
622 if (flags &amp; CUPS_DEST_FLAGS_REMOVED)
623 {
624 /*
625 * Remove destination from array...
626 */
627
628 user_data-&gt;num_dests =
629 cupsRemoveDest(dest-&gt;name, dest-&gt;instance,
630 user_data-&gt;num_dests,
631 &amp;(user_data-&gt;dests));
632 }
633 else
634 {
635 /*
636 * Add destination to array...
637 */
638
639 user_data-&gt;num_dests =
640 cupsCopyDest(dest, user_data-&gt;num_dests,
641 &amp;(user_data-&gt;dests));
642 }
643
644 return (1);
645}
646
647int
648my_get_dests(cups_ptype_t type, cups_ptype_t mask,
649 cups_dest_t **dests)
650{
651 my_user_data_t user_data = { 0, NULL };
652
653 if (!cupsEnumDests(CUPS_DEST_FLAGS_NONE, 1000, NULL, type,
654 mask, (cups_dest_cb_t)my_dest_cb,
655 &amp;user_data))
656 {
657 /*
658 * An error occurred, free all of the destinations and
659 * return...
660 */
661
662 cupsFreeDests(user_data.num_dests, user_dasta.dests);
663
664 *dests = NULL;
665
666 return (0);
667 }
668
669 /*
670 * Return the destination array...
671 */
672
673 *dests = user_data.dests;
674
675 return (user_data.num_dests);
676}
677</code></pre>
53af7f21 678 <h3><a id="basic-destination-information">Basic Destination Information</a></h3>
798d6e29
MS
679 <p>The <code>num_options</code> and <code>options</code> members of the <code>cups_dest_t</code> structure provide basic attributes about the destination in addition to the user default options and values for that destination. The following names are predefined for various destination attributes:</p>
680 <ul>
681 <li>&quot;auth-info-required&quot;: The type of authentication required for printing to this destination: &quot;none&quot;, &quot;username,password&quot;, &quot;domain,username,password&quot;, or &quot;negotiate&quot; (Kerberos).</li>
682 <li>&quot;printer-info&quot;: The human-readable description of the destination such as &quot;My Laser Printer&quot;.</li>
683 <li>&quot;printer-is-accepting-jobs&quot;: &quot;true&quot; if the destination is accepting new jobs, &quot;false&quot; otherwise.</li>
684 <li>&quot;printer-is-shared&quot;: &quot;true&quot; if the destination is being shared with other computers, &quot;false&quot; otherwise.</li>
685 <li>&quot;printer-location&quot;: The human-readable location of the destination such as &quot;Lab 4&quot;.</li>
686 <li>&quot;printer-make-and-model&quot;: The human-readable make and model of the destination such as &quot;ExampleCorp LaserPrinter 4000 Series&quot;.</li>
687 <li>&quot;printer-state&quot;: &quot;3&quot; if the destination is idle, &quot;4&quot; if the destination is printing a job, and &quot;5&quot; if the destination is stopped.</li>
688 <li>&quot;printer-state-change-time&quot;: The UNIX time when the destination entered the current state.</li>
689 <li>&quot;printer-state-reasons&quot;: Additional comma-delimited state keywords for the destination such as &quot;media-tray-empty-error&quot; and &quot;toner-low-warning&quot;.</li>
690 <li>&quot;printer-type&quot;: The <code>cups_ptype_t</code> value associated with the destination.</li>
53af7f21 691 <li>&quot;printer-uri-supported&quot;: The URI associated with the destination; if not set, this destination was discovered but is not yet setup as a local printer.</li>
798d6e29
MS
692</ul>
693 <p>Use the <code>cupsGetOption</code> function to retrieve the value. For example, the following code gets the make and model of a destination:</p>
694 <pre><code>const char *model = cupsGetOption(&quot;printer-make-and-model&quot;,
695 dest-&gt;num_options,
696 dest-&gt;options);
697</code></pre>
53af7f21 698 <h3><a id="detailed-destination-information">Detailed Destination Information</a></h3>
798d6e29
MS
699 <p>Once a destination has been chosen, the <code>cupsCopyDestInfo</code> function can be used to gather detailed information about the destination:</p>
700 <pre><code>cups_dinfo_t *
701cupsCopyDestInfo(http_t *http, cups_dest_t *dest);
702</code></pre>
703 <p>The <code>http</code> argument specifies a connection to the CUPS scheduler and is typically the constant <code>CUPS_HTTP_DEFAULT</code>. The <code>dest</code> argument specifies the destination to query.</p>
704 <p>The <code>cups_dinfo_t</code> structure that is returned contains a snapshot of the supported options and their supported, ready, and default values. It also can report constraints between different options and values, and recommend changes to resolve those constraints.</p>
53af7f21 705 <h4><a id="getting-supported-options-and-values">Getting Supported Options and Values</a></h4>
798d6e29
MS
706 <p>The <code>cupsCheckDestSupported</code> function can be used to test whether a particular option or option and value is supported:</p>
707 <pre><code>int
708cupsCheckDestSupported(http_t *http, cups_dest_t *dest,
709 cups_dinfo_t *info,
710 const char *option,
711 const char *value);
712</code></pre>
713 <p>The <code>option</code> argument specifies the name of the option to check. The following constants can be used to check the various standard options:</p>
714 <ul>
715 <li><code>CUPS_COPIES</code>: Controls the number of copies that are produced.</li>
716 <li><code>CUPS_FINISHINGS</code>: A comma-delimited list of integer constants that control the finishing processes that are applied to the job, including stapling, punching, and folding.</li>
717 <li><code>CUPS_MEDIA</code>: Controls the media size that is used, typically one of the following: <code>CUPS_MEDIA_3X5</code>, <code>CUPS_MEDIA_4X6</code>, <code>CUPS_MEDIA_5X7</code>, <code>CUPS_MEDIA_8X10</code>, <code>CUPS_MEDIA_A3</code>, <code>CUPS_MEDIA_A4</code>, <code>CUPS_MEDIA_A5</code>, <code>CUPS_MEDIA_A6</code>, <code>CUPS_MEDIA_ENV10</code>, <code>CUPS_MEDIA_ENVDL</code>, <code>CUPS_MEDIA_LEGAL</code>, <code>CUPS_MEDIA_LETTER</code>, <code>CUPS_MEDIA_PHOTO_L</code>, <code>CUPS_MEDIA_SUPERBA3</code>, or <code>CUPS_MEDIA_TABLOID</code>.</li>
718 <li><code>CUPS_MEDIA_SOURCE</code>: Controls where the media is pulled from, typically either <code>CUPS_MEDIA_SOURCE_AUTO</code> or <code>CUPS_MEDIA_SOURCE_MANUAL</code>.</li>
719 <li><code>CUPS_MEDIA_TYPE</code>: Controls the type of media that is used, typically one of the following: <code>CUPS_MEDIA_TYPE_AUTO</code>, <code>CUPS_MEDIA_TYPE_ENVELOPE</code>, <code>CUPS_MEDIA_TYPE_LABELS</code>, <code>CUPS_MEDIA_TYPE_LETTERHEAD</code>, <code>CUPS_MEDIA_TYPE_PHOTO</code>, <code>CUPS_MEDIA_TYPE_PHOTO_GLOSSY</code>, <code>CUPS_MEDIA_TYPE_PHOTO_MATTE</code>, <code>CUPS_MEDIA_TYPE_PLAIN</code>, or <code>CUPS_MEDIA_TYPE_TRANSPARENCY</code>.</li>
720 <li><code>CUPS_NUMBER_UP</code>: Controls the number of document pages that are placed on each media side.</li>
721 <li><code>CUPS_ORIENTATION</code>: Controls the orientation of document pages placed on the media: <code>CUPS_ORIENTATION_PORTRAIT</code> or <code>CUPS_ORIENTATION_LANDSCAPE</code>.</li>
9c44e2cb 722 <li><code>CUPS_PRINT_COLOR_MODE</code>: Controls whether the output is in color (<code>CUPS_PRINT_COLOR_MODE_COLOR</code>), grayscale (<code>CUPS_PRINT_COLOR_MODE_MONOCHROME</code>), or either (<code>CUPS_PRINT_COLOR_MODE_AUTO</code>).</li>
798d6e29
MS
723 <li><code>CUPS_PRINT_QUALITY</code>: Controls the generate quality of the output: <code>CUPS_PRINT_QUALITY_DRAFT</code>, <code>CUPS_PRINT_QUALITY_NORMAL</code>, or <code>CUPS_PRINT_QUALITY_HIGH</code>.</li>
724 <li><code>CUPS_SIDES</code>: Controls whether prints are placed on one or both sides of the media: <code>CUPS_SIDES_ONE_SIDED</code>, <code>CUPS_SIDES_TWO_SIDED_PORTRAIT</code>, or <code>CUPS_SIDES_TWO_SIDED_LANDSCAPE</code>.</li>
725</ul>
726 <p>If the <code>value</code> argument is <code>NULL</code>, the <code>cupsCheckDestSupported</code> function returns whether the option is supported by the destination. Otherwise, the function returns whether the specified value of the option is supported.</p>
727 <p>The <code>cupsFindDestSupported</code> function returns the IPP attribute containing the supported values for a given option:</p>
728 <pre><code> ipp_attribute_t *
729 cupsFindDestSupported(http_t *http, cups_dest_t *dest,
730 cups_dinfo_t *dinfo,
731 const char *option);
732</code></pre>
733 <p>For example, the following code prints the supported finishing processes for a destination, if any, to the standard output:</p>
734 <pre><code>cups_dinfo_t *info = cupsCopyDestInfo(CUPS_HTTP_DEFAULT,
735 dest);
736
737if (cupsCheckDestSupported(CUPS_HTTP_DEFAULT, dest, info,
738 CUPS_FINISHINGS, NULL))
739{
740 ipp_attribute_t *finishings =
741 cupsFindDestSupported(CUPS_HTTP_DEFAULT, dest, info,
742 CUPS_FINISHINGS);
743 int i, count = ippGetCount(finishings);
744
745 puts(&quot;finishings supported:&quot;);
746 for (i = 0; i &lt; count; i ++)
747 printf(&quot; %d\n&quot;, ippGetInteger(finishings, i));
748}
749else
750 puts(&quot;finishings not supported.&quot;);
751</code></pre>
752 <p>The &quot;job-creation-attributes&quot; option can be queried to get a list of supported options. For example, the following code prints the list of supported options to the standard output:</p>
753 <pre><code>ipp_attribute_t *attrs =
754 cupsFindDestSupported(CUPS_HTTP_DEFAULT, dest, info,
755 &quot;job-creation-attributes&quot;);
756int i, count = ippGetCount(attrs);
757
758for (i = 0; i &lt; count; i ++)
759 puts(ippGetString(attrs, i, NULL));
760</code></pre>
53af7f21 761 <h4><a id="getting-default-values">Getting Default Values</a></h4>
798d6e29
MS
762 <p>There are two sets of default values - user defaults that are available via the <code>num_options</code> and <code>options</code> members of the <code>cups_dest_t</code> structure, and destination defaults that available via the <code>cups_dinfo_t</code> structure and the <code>cupsFindDestDefault</code> function which returns the IPP attribute containing the default value(s) for a given option:</p>
763 <pre><code>ipp_attribute_t *
764cupsFindDestDefault(http_t *http, cups_dest_t *dest,
765 cups_dinfo_t *dinfo,
766 const char *option);
767</code></pre>
768 <p>The user defaults from <code>cupsGetOption</code> should always take preference over the destination defaults. For example, the following code prints the default finishings value(s) to the standard output:</p>
769 <pre><code>const char *def_value =
770 cupsGetOption(CUPS_FINISHINGS, dest-&gt;num_options,
771 dest-&gt;options);
772ipp_attribute_t *def_attr =
773 cupsFindDestDefault(CUPS_HTTP_DEFAULT, dest, info,
774 CUPS_FINISHINGS);
775
776if (def_value != NULL)
777{
778 printf(&quot;Default finishings: %s\n&quot;, def_value);
779}
780else
781{
782 int i, count = ippGetCount(def_attr);
783
784 printf(&quot;Default finishings: %d&quot;,
785 ippGetInteger(def_attr, 0));
786 for (i = 1; i &lt; count; i ++)
787 printf(&quot;,%d&quot;, ippGetInteger(def_attr, i));
788 putchar('\n');
789}
790</code></pre>
53af7f21 791 <h4><a id="getting-ready-loaded-values">Getting Ready (Loaded) Values</a></h4>
798d6e29
MS
792 <p>The finishings and media options also support queries for the ready, or loaded, values. For example, a printer may have punch and staple finishers installed but be out of staples - the supported values will list both punch and staple finishing processes but the ready values will only list the punch processes. Similarly, a printer may support hundreds of different sizes of media but only have a single size loaded at any given time - the ready values are limited to the media that is actually in the printer.</p>
793 <p>The <code>cupsFindDestReady</code> function finds the IPP attribute containing the ready values for a given option:</p>
794 <pre><code>ipp_attribute_t *
795cupsFindDestReady(http_t *http, cups_dest_t *dest,
796 cups_dinfo_t *dinfo, const char *option);
797</code></pre>
798 <p>For example, the following code lists the ready finishing processes:</p>
799 <pre><code>ipp_attribute_t *ready_finishings =
800 cupsFindDestReady(CUPS_HTTP_DEFAULT, dest, info,
801 CUPS_FINISHINGS);
802
803if (ready_finishings != NULL)
804{
805 int i, count = ippGetCount(ready_finishings);
806
807 puts(&quot;finishings ready:&quot;);
808 for (i = 0; i &lt; count; i ++)
809 printf(&quot; %d\n&quot;, ippGetInteger(ready_finishings, i));
810}
811else
812 puts(&quot;no finishings are ready.&quot;);
813</code></pre>
53af7f21 814 <h4><a id="media-size-options">Media Size Options</a></h4>
798d6e29
MS
815 <p>CUPS provides functions for querying the dimensions and margins for each of the supported media size options. The <code>cups_size_t</code> structure is used to describe a media size:</p>
816 <pre><code>typedef struct cups_size_s
817{
818 char media[128];
819 int width, length;
820 int bottom, left, right, top;
821} cups_size_t;
822</code></pre>
823 <p>The <code>width</code> and <code>length</code> members specify the dimensions of the media in hundredths of millimeters (1/2540th of an inch). The <code>bottom</code>, <code>left</code>, <code>right</code>, and <code>top</code> members specify the margins of the printable area, also in hundredths of millimeters.</p>
824 <p>The <code>cupsGetDestMediaByName</code> and <code>cupsGetDestMediaBySize</code> functions lookup the media size information using a standard media size name or dimensions in hundredths of millimeters:</p>
825 <pre><code>int
826cupsGetDestMediaByName(http_t *http, cups_dest_t *dest,
827 cups_dinfo_t *dinfo,
828 const char *media,
829 unsigned flags, cups_size_t *size);
830
831int
832cupsGetDestMediaBySize(http_t *http, cups_dest_t *dest,
833 cups_dinfo_t *dinfo,
834 int width, int length,
835 unsigned flags, cups_size_t *size);
836</code></pre>
837 <p>The <code>media</code>, <code>width</code>, and <code>length</code> arguments specify the size to lookup. The <code>flags</code> argument specifies a bitfield controlling various lookup options:</p>
838 <ul>
839 <li><code>CUPS_MEDIA_FLAGS_DEFAULT</code>: Find the closest size supported by the printer.</li>
840 <li><code>CUPS_MEDIA_FLAGS_BORDERLESS</code>: Find a borderless size.</li>
841 <li><code>CUPS_MEDIA_FLAGS_DUPLEX</code>: Find a size compatible with two-sided printing.</li>
842 <li><code>CUPS_MEDIA_FLAGS_EXACT</code>: Find an exact match for the size.</li>
843 <li><code>CUPS_MEDIA_FLAGS_READY</code>: If the printer supports media sensing or configuration of the media in each tray/source, find the size amongst the &quot;ready&quot; media.</li>
844</ul>
845 <p>If a matching size is found for the destination, the size information is stored in the structure pointed to by the <code>size</code> argument and 1 is returned. Otherwise 0 is returned.</p>
846 <p>For example, the following code prints the margins for two-sided printing on US Letter media:</p>
847 <pre><code>cups_size_t size;
848
849if (cupsGetDestMediaByName(CUPS_HTTP_DEFAULT, dest, info,
850 CUPS_MEDIA_LETTER,
851 CUPS_MEDIA_FLAGS_DUPLEX, &amp;size))
852{
853 puts(&quot;Margins for duplex US Letter:&quot;);
854 printf(&quot; Bottom: %.2fin\n&quot;, size.bottom / 2540.0);
855 printf(&quot; Left: %.2fin\n&quot;, size.left / 2540.0);
856 printf(&quot; Right: %.2fin\n&quot;, size.right / 2540.0);
857 printf(&quot; Top: %.2fin\n&quot;, size.top / 2540.0);
858}
859else
860 puts(&quot;Margins for duplex US Letter are not available.&quot;);
861</code></pre>
862 <p>You can also enumerate all of the sizes that match a given <code>flags</code> value using the <code>cupsGetDestMediaByIndex</code> and <code>cupsGetDestMediaCount</code> functions:</p>
863 <pre><code>int
864cupsGetDestMediaByIndex(http_t *http, cups_dest_t *dest,
865 cups_dinfo_t *dinfo, int n,
866 unsigned flags, cups_size_t *size);
867
868int
869cupsGetDestMediaCount(http_t *http, cups_dest_t *dest,
870 cups_dinfo_t *dinfo, unsigned flags);
871</code></pre>
872 <p>For example, the following code prints the list of ready media and corresponding margins:</p>
873 <pre><code>cups_size_t size;
874int i;
875int count = cupsGetDestMediaCount(CUPS_HTTP_DEFAULT,
876 dest, info,
877 CUPS_MEDIA_FLAGS_READY);
878
879for (i = 0; i &lt; count; i ++)
880{
881 if (cupsGetDestMediaByIndex(CUPS_HTTP_DEFAULT, dest, info,
882 i, CUPS_MEDIA_FLAGS_READY,
883 &amp;size))
884 {
885 printf(&quot;%s:\n&quot;, size.name);
886 printf(&quot; Width: %.2fin\n&quot;, size.width / 2540.0);
887 printf(&quot; Length: %.2fin\n&quot;, size.length / 2540.0);
888 printf(&quot; Bottom: %.2fin\n&quot;, size.bottom / 2540.0);
889 printf(&quot; Left: %.2fin\n&quot;, size.left / 2540.0);
890 printf(&quot; Right: %.2fin\n&quot;, size.right / 2540.0);
891 printf(&quot; Top: %.2fin\n&quot;, size.top / 2540.0);
892 }
893}
894</code></pre>
895 <p>Finally, the <code>cupsGetDestMediaDefault</code> function returns the default media size:</p>
896 <pre><code>int
897cupsGetDestMediaDefault(http_t *http, cups_dest_t *dest,
898 cups_dinfo_t *dinfo, unsigned flags,
899 cups_size_t *size);
900</code></pre>
53af7f21 901 <h4><a id="localizing-options-and-values">Localizing Options and Values</a></h4>
6ad44eeb 902 <p>CUPS provides three functions to get localized, human-readable strings in the user's current locale for options and values: <code>cupsLocalizeDestMedia</code>, <code>cupsLocalizeDestOption</code>, and <code>cupsLocalizeDestValue</code>:</p>
798d6e29
MS
903 <pre><code>const char *
904cupsLocalizeDestMedia(http_t *http, cups_dest_t *dest,
905 cups_dinfo_t *info, unsigned flags,
906 cups_size_t *size);
907
908const char *
909cupsLocalizeDestOption(http_t *http, cups_dest_t *dest,
910 cups_dinfo_t *info,
911 const char *option);
912
913const char *
914cupsLocalizeDestValue(http_t *http, cups_dest_t *dest,
915 cups_dinfo_t *info,
916 const char *option, const char *value);
917</code></pre>
53af7f21 918 <h3><a id="submitting-a-print-job">Submitting a Print Job</a></h3>
798d6e29
MS
919 <p>Once you are ready to submit a print job, you create a job using the <code>cupsCreateDestJob</code> function:</p>
920 <pre><code>ipp_status_t
921cupsCreateDestJob(http_t *http, cups_dest_t *dest,
922 cups_dinfo_t *info, int *job_id,
923 const char *title, int num_options,
924 cups_option_t *options);
925</code></pre>
926 <p>The <code>title</code> argument specifies a name for the print job such as &quot;My Document&quot;. The <code>num_options</code> and <code>options</code> arguments specify the options for the print job which are allocated using the <code>cupsAddOption</code> function.</p>
927 <p>When successful, the job's numeric identifier is stored in the integer pointed to by the <code>job_id</code> argument and <code>IPP_STATUS_OK</code> is returned. Otherwise, an IPP error status is returned.</p>
928 <p>For example, the following code creates a new job that will print 42 copies of a two-sided US Letter document:</p>
929 <pre><code>int job_id = 0;
930int num_options = 0;
931cups_option_t *options = NULL;
932
933num_options = cupsAddOption(CUPS_COPIES, &quot;42&quot;,
934 num_options, &amp;options);
935num_options = cupsAddOption(CUPS_MEDIA, CUPS_MEDIA_LETTER,
936 num_options, &amp;options);
937num_options = cupsAddOption(CUPS_SIDES,
938 CUPS_SIDES_TWO_SIDED_PORTRAIT,
939 num_options, &amp;options);
940
941if (cupsCreateDestJob(CUPS_HTTP_DEFAULT, dest, info,
942 &amp;job_id, &quot;My Document&quot;, num_options,
943 options) == IPP_STATUS_OK)
944 printf(&quot;Created job: %d\n&quot;, job_id);
945else
946 printf(&quot;Unable to create job: %s\n&quot;,
947 cupsLastErrorString());
948</code></pre>
949 <p>Once the job is created, you submit documents for the job using the <code>cupsStartDestDocument</code>, <code>cupsWriteRequestData</code>, and <code>cupsFinishDestDocument</code> functions:</p>
950 <pre><code>http_status_t
951cupsStartDestDocument(http_t *http, cups_dest_t *dest,
952 cups_dinfo_t *info, int job_id,
953 const char *docname,
954 const char *format,
955 int num_options,
956 cups_option_t *options,
957 int last_document);
958
959http_status_t
960cupsWriteRequestData(http_t *http, const char *buffer,
961 size_t length);
962
963ipp_status_t
964cupsFinishDestDocument(http_t *http, cups_dest_t *dest,
965 cups_dinfo_t *info);
966</code></pre>
967 <p>The <code>docname</code> argument specifies the name of the document, typically the original filename. The <code>format</code> argument specifies the MIME media type of the document, including the following constants:</p>
968 <ul>
969 <li><code>CUPS_FORMAT_JPEG</code>: &quot;image/jpeg&quot;</li>
970 <li><code>CUPS_FORMAT_PDF</code>: &quot;application/pdf&quot;</li>
971 <li><code>CUPS_FORMAT_POSTSCRIPT</code>: &quot;application/postscript&quot;</li>
972 <li><code>CUPS_FORMAT_TEXT</code>: &quot;text/plain&quot;</li>
973</ul>
974 <p>The <code>num_options</code> and <code>options</code> arguments specify per-document print options, which at present must be 0 and <code>NULL</code>. The <code>last_document</code> argument specifies whether this is the last document in the job.</p>
975 <p>For example, the following code submits a PDF file to the job that was just created:</p>
976 <pre><code>FILE *fp = fopen(&quot;filename.pdf&quot;, &quot;rb&quot;);
977size_t bytes;
978char buffer[65536];
979
980if (cupsStartDestDocument(CUPS_HTTP_DEFAULT, dest, info,
981 job_id, &quot;filename.pdf&quot;, 0, NULL,
982 1) == HTTP_STATUS_CONTINUE)
983{
984 while ((bytes = fread(buffer, 1, sizeof(buffer), fp)) &gt; 0)
985 if (cupsWriteRequestData(CUPS_HTTP_DEFAULT, buffer,
986 bytes) != HTTP_STATUS_CONTINUE)
987 break;
988
989 if (cupsFinishDestDocument(CUPS_HTTP_DEFAULT, dest,
990 info) == IPP_STATUS_OK)
991 puts(&quot;Document send succeeded.&quot;);
992 else
993 printf(&quot;Document send failed: %s\n&quot;,
994 cupsLastErrorString());
995}
996
997fclose(fp);
998</code></pre>
b0fb2d75
MS
999 <h2><a id="sending-ipp-requests">Sending IPP Requests</a></h2>
1000 <p>CUPS provides a rich API for sending IPP requests to the scheduler or printers, typically from management or utility applications whose primary purpose is not to send print jobs.</p>
1001 <h3><a id="connecting-to-the-scheduler-or-printer">Connecting to the Scheduler or Printer</a></h3>
1002 <p>The connection to the scheduler or printer is represented by the HTTP connection type <code>http_t</code>. The <code>cupsConnectDest</code> function connects to the scheduler or printer associated with the destination:</p>
1003 <pre><code>http_t *
1004cupsConnectDest(cups_dest_t *dest, unsigned flags, int msec,
1005 int *cancel, char *resource,
1006 size_t resourcesize, cups_dest_cb_t cb,
1007 void *user_data);
1008</code></pre>
1009 <p>The <code>dest</code> argument specifies the destination to connect to.</p>
1010 <p>The <code>flags</code> argument specifies whether you want to connect to the scheduler (<code>CUPS_DEST_FLAGS_NONE</code>) or device/printer (<code>CUPS_DEST_FLAGS_DEVICE</code>) associated with the destination.</p>
1011 <p>The <code>msec</code> argument specifies how long you are willing to wait for the connection to be established in milliseconds. Specify a value of <code>-1</code> to wait indefinitely.</p>
1012 <p>The <code>cancel</code> argument specifies the address of an integer variable that can be set to a non-zero value to cancel the connection. Specify a value of <code>NULL</code> to not provide a cancel variable.</p>
1013 <p>The <code>resource</code> and <code>resourcesize</code> arguments specify the address and size of a character string array to hold the path to use when sending an IPP request.</p>
1014 <p>The <code>cb</code> and <code>user_data</code> arguments specify a destination callback function that returns 1 to continue connecting or 0 to stop. The destination callback work the same way as the one used for the <code>cupsEnumDests</code> function.</p>
1015 <p>On success, a HTTP connection is returned that can be used to send IPP requests and get IPP responses.</p>
1016 <p>For example, the following code connects to the printer associated with a destination with a 30 second timeout:</p>
1017 <pre><code>char resource[256];
1018http_t *http = cupsConnectDest(dest, CUPS_DEST_FLAGS_DEVICE,
1019 30000, NULL, resource,
1020 sizeof(resource), NULL, NULL);
1021</code></pre>
1022 <h3><a id="creating-an-ipp-request">Creating an IPP Request</a></h3>
1023 <p>IPP requests are represented by the IPP message type <code>ipp_t</code> and each IPP attribute in the request is representing using the type <code>ipp_attribute_t</code>. Each IPP request includes an operation code (<code>IPP_OP_CREATE_JOB</code>, <code>IPP_OP_GET_PRINTER_ATTRIBUTES</code>, etc.) and a 32-bit integer identifier.</p>
1024 <p>The <code>ippNewRequest</code> function creates a new IPP request:</p>
1025 <pre><code>ipp_t *
1026ippNewRequest(ipp_op_t op);
1027</code></pre>
1028 <p>The <code>op</code> argument specifies the IPP operation code for the request. For example, the following code creates an IPP Get-Printer-Attributes request:</p>
1029 <pre><code>ipp_t *request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
1030</code></pre>
1031 <p>The request identifier is automatically set to a unique value for the current process.</p>
1032 <p>Each IPP request starts with two IPP attributes, &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot;, followed by IPP attribute(s) that specify the target of the operation. The <code>ippNewRequest</code> automatically adds the correct &quot;attributes-charset&quot; and &quot;attributes-natural-language&quot; attributes, but you must add the target attribute(s). For example, the following code adds the &quot;printer-uri&quot; attribute to the IPP Get-Printer-Attributes request to specify which printer is being queried:</p>
1033 <pre><code>const char *printer_uri = cupsGetOption(&quot;device-uri&quot;,
1034 dest-&gt;num_options,
1035 dest-&gt;options);
1036
1037ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1038 &quot;printer-uri&quot;, NULL, printer_uri);
1039</code></pre>
1040 <blockquote>
1041 <p>Note: If we wanted to query the scheduler instead of the device, we would look up the &quot;printer-uri-supported&quot; option instead of the &quot;device-uri&quot; value.</p>
1042</blockquote>
1043 <p>The <code>ippAddString</code> function adds the &quot;printer-uri&quot; attribute the the IPP request. The <code>IPP_TAG_OPERATION</code> argument specifies that the attribute is part of the operation. The <code>IPP_TAG_URI</code> argument specifies that the value is a Universal Resource Identifier (URI) string. The <code>NULL</code> argument specifies there is no language (English, French, Japanese, etc.) associated with the string, and the <code>printer_uri</code> argument specifies the string value.</p>
1044 <p>The IPP Get-Printer-Attributes request also supports an IPP attribute called &quot;requested-attributes&quot; that lists the attributes and values you are interested in. For example, the following code requests the printer state attributes:</p>
1045 <pre><code>static const char * const requested_attributes[] =
1046{
1047 &quot;printer-state&quot;,
1048 &quot;printer-state-message&quot;,
1049 &quot;printer-state-reasons&quot;
1050};
1051
1052ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
1053 &quot;requested-attributes&quot;, 3, NULL,
1054 requested_attributes);
1055</code></pre>
1056 <p>The <code>ippAddStrings</code> function adds an attribute with one or more strings, in this case three. The <code>IPP_TAG_KEYWORD</code> argument specifies that the strings are keyword values, which are used for attribute names. All strings use the same language (<code>NULL</code>), and the attribute will contain the three strings in the array <code>requested_attributes</code>.</p>
1057 <p>CUPS provides many functions to adding attributes of different types:</p>
1058 <ul>
1059 <li><code>ippAddBoolean</code> adds a boolean (<code>IPP_TAG_BOOLEAN</code>) attribute with one value.</li>
1060 <li><code>ippAddInteger</code> adds an enum (<code>IPP_TAG_ENUM</code>) or integer (<code>IPP_TAG_INTEGER</code>) attribute with one value.</li>
1061 <li><code>ippAddIntegers</code> adds an enum or integer attribute with one or more values.</li>
1062 <li><code>ippAddOctetString</code> adds an octetString attribute with one value.</li>
1063 <li><code>ippAddOutOfBand</code> adds a admin-defined (<code>IPP_TAG_ADMINDEFINE</code>), default (<code>IPP_TAG_DEFAULT</code>), delete-attribute (<code>IPP_TAG_DELETEATTR</code>), no-value (<code>IPP_TAG_NOVALUE</code>), not-settable (<code>IPP_TAG_NOTSETTABLE</code>), unknown (<code>IPP_TAG_UNKNOWN</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_VALUE</code>) out-of-band attribute.</li>
1064 <li><code>ippAddRange</code> adds a rangeOfInteger attribute with one range.</li>
1065 <li><code>ippAddRanges</code> adds a rangeOfInteger attribute with one or more ranges.</li>
1066 <li><code>ippAddResolution</code> adds a resolution attribute with one resolution.</li>
1067 <li><code>ippAddResolutions</code> adds a resolution attribute with one or more resolutions.</li>
1068 <li><code>ippAddString</code> adds a charset (<code>IPP_TAG_CHARSET</code>), keyword (<code>IPP_TAG_KEYWORD</code>), mimeMediaType (<code>IPP_TAG_MIMETYPE</code>), name (<code>IPP_TAG_NAME</code> and <code>IPP_TAG_NAMELANG</code>), naturalLanguage (<code>IPP_TAG_NATURAL_LANGUAGE</code>), text (<code>IPP_TAG_TEXT</code> and <code>IPP_TAG_TEXTLANG</code>), uri (<code>IPP_TAG_URI</code>), or uriScheme (<code>IPP_TAG_URISCHEME</code>) attribute with one value.</li>
1069 <li><code>ippAddStrings</code> adds a charset, keyword, mimeMediaType, name, naturalLanguage, text, uri, or uriScheme attribute with one or more values.</li>
1070</ul>
1071 <h3><a id="sending-the-ipp-request">Sending the IPP Request</a></h3>
1072 <p>Once you have created the IPP request, you can send it using the <code>cupsDoRequest</code> function. For example, the following code sends the IPP Get-Printer-Attributes request to the destination and saves the response:</p>
1073 <pre><code>ipp_t *response = cupsDoRequest(http, request, resource);
1074</code></pre>
1075 <p>For requests like Send-Document that include a file, the <code>cupsDoFileRequest</code> function should be used:</p>
1076 <pre><code>ipp_t *response = cupsDoFileRequest(http, request, resource,
1077 filename);
1078</code></pre>
1079 <p>Both <code>cupsDoRequest</code> and <code>cupsDoFileRequest</code> free the IPP request. If a valid IPP response is received, it is stored in a new IPP message (<code>ipp_t</code>) and returned to the caller. Otherwise <code>NULL</code> is returned.</p>
1080 <p>The status from the most recent request can be queried using the <code>cupsLastError</code> function, for example:</p>
1081 <pre><code>if (cupsLastError() &gt;= IPP_STATUS_ERROR_BAD_REQUEST)
1082{
1083 /* request failed */
1084}
1085</code></pre>
1086 <p>A human-readable error message is also available using the <code>cupsLastErrorString</code> function:</p>
1087 <pre><code>if (cupsLastError() &gt;= IPP_STATUS_ERROR_BAD_REQUEST)
1088{
1089 /* request failed */
1090 printf(&quot;Request failed: %s\n&quot;, cupsLastErrorString());
1091}
1092</code></pre>
1093 <h3><a id="processing-the-ipp-response">Processing the IPP Response</a></h3>
1094 <p>Each response to an IPP request is also an IPP message (<code>ipp_t</code>) with its own IPP attributes (<code>ipp_attribute_t</code>) that includes a status code (<code>IPP_STATUS_OK</code>, <code>IPP_STATUS_ERROR_BAD_REQUEST</code>, etc.) and the corresponding 32-bit integer identifier from the request.</p>
1095 <p>For example, the following code finds the printer state attributes and prints their values:</p>
1096 <pre><code>ipp_attribute_t *attr;
1097
1098if ((attr = ippFindAttribute(response, &quot;printer-state&quot;,
1099 IPP_TAG_ENUM)) != NULL)
1100{
1101 printf(&quot;printer-state=%s\n&quot;,
db5424ea 1102 ippEnumString(&quot;printer-state&quot;, ippGetInteger(attr, 0)));
b0fb2d75
MS
1103}
1104else
1105 puts(&quot;printer-state=unknown&quot;);
1106
1107if ((attr = ippFindAttribute(response, &quot;printer-state-message&quot;,
1108 IPP_TAG_TEXT)) != NULL)
1109{
1110 printf(&quot;printer-state-message=\&quot;%s\&quot;\n&quot;,
1111 ippGetString(attr, 0, NULL)));
1112}
1113
1114if ((attr = ippFindAttribute(response, &quot;printer-state-reasons&quot;,
1115 IPP_TAG_KEYWORD)) != NULL)
1116{
1117 int i, count = ippGetCount(attr);
1118
1119 puts(&quot;printer-state-reasons=&quot;);
1120 for (i = 0; i &lt; count; i ++)
1121 printf(&quot; %s\n&quot;, ippGetString(attr, i, NULL)));
1122}
1123</code></pre>
1124 <p>The <code>ippGetCount</code> function returns the number of values in an attribute.</p>
1125 <p>The <code>ippGetInteger</code> and <code>ippGetString</code> functions return a single integer or string value from an attribute.</p>
db5424ea 1126 <p>The <code>ippEnumString</code> function converts a enum value to its keyword (string) equivalent.</p>
b0fb2d75
MS
1127 <p>Once you are done using the IPP response message, free it using the <code>ippDelete</code> function:</p>
1128 <pre><code>ippDelete(response);
1129</code></pre>
1130 <h3><a id="authentication">Authentication</a></h3>
1131 <p>CUPS normally handles authentication through the console. GUI applications should set a password callback using the <code>cupsSetPasswordCB2</code> function:</p>
1132 <pre><code>void
1133cupsSetPasswordCB2(cups_password_cb2_t cb, void *user_data);
1134</code></pre>
1135 <p>The password callback will be called when needed and is responsible for setting the current user name using <code>cupsSetUser</code> and returning a string:</p>
1136 <pre><code>const char *
1137cups_password_cb2(const char *prompt, http_t *http,
1138 const char *method, const char *resource,
1139 void *user_data);
1140</code></pre>
1141 <p>The <code>prompt</code> argument is a string from CUPS that should be displayed to the user.</p>
1142 <p>The <code>http</code> argument is the connection hosting the request that is being authenticated. The password callback can call the <code>httpGetField</code> and <code>httpGetSubField</code> functions to look for additional details concerning the authentication challenge.</p>
1143 <p>The <code>method</code> argument specifies the HTTP method used for the request and is typically &quot;POST&quot;.</p>
1144 <p>The <code>resource</code> argument specifies the path used for the request.</p>
1145 <p>The <code>user_data</code> argument provides the user data pointer from the <code>cupsSetPasswordCB2</code> call.</p>
798d6e29
MS
1146 <h2 class="title"><a id="FUNCTIONS">Functions</a></h2>
1147<h3 class="function"><a id="cupsAddDest">cupsAddDest</a></h3>
1148 <p class="description">Add a destination to the list of destinations.</p>
1149<p class="code">
98d88c8d
MS
1150int cupsAddDest(const char *name, const char *instance, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> **dests);</p>
1151<h4 class="parameters">Parameters</h4>
1152<table class="list"><tbody>
1153<tr><th>name</th>
1154 <td class="description">Destination name</td></tr>
1155<tr><th>instance</th>
1156 <td class="description">Instance name or <code>NULL</code> for none/primary</td></tr>
1157<tr><th>num_dests</th>
1158 <td class="description">Number of destinations</td></tr>
1159<tr><th>dests</th>
1160 <td class="description">Destinations</td></tr>
1161</tbody></table>
798d6e29
MS
1162<h4 class="returnvalue">Return Value</h4>
1163 <p class="description">New number of destinations</p>
1164<h4 class="discussion">Discussion</h4>
1165 <p class="discussion">This function cannot be used to add a new class or printer queue,
1166it only adds a new container of saved options for the named
1167destination or instance.<br>
1168<br>
1169If the named destination already exists, the destination list is
1170returned unchanged. Adding a new instance of a destination creates
1171a copy of that destination's options.<br>
1172<br>
1173Use the <a href="#cupsSaveDests"><code>cupsSaveDests</code></a> function to save the updated list of
1174destinations to the user's lpoptions file.</p>
63b75fbe
MS
1175<h3 class="function"><span class="info">&#160;CUPS 2.3&#160;</span><a id="cupsAddDestMediaOptions">cupsAddDestMediaOptions</a></h3>
1176 <p class="description">Add the option corresponding to the specified media size.</p>
1177<p class="code">
1178int cupsAddDestMediaOptions(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size, int num_options, <a href="#cups_option_t">cups_option_t</a> **options);</p>
1179<h4 class="parameters">Parameters</h4>
1180<table class="list"><tbody>
1181<tr><th>http</th>
1182 <td class="description">Connection to destination</td></tr>
1183<tr><th>dest</th>
1184 <td class="description">Destination</td></tr>
1185<tr><th>dinfo</th>
1186 <td class="description">Destination information</td></tr>
1187<tr><th>flags</th>
1188 <td class="description">Media matching flags</td></tr>
1189<tr><th>size</th>
1190 <td class="description">Media size</td></tr>
1191<tr><th>num_options</th>
1192 <td class="description">Current number of options</td></tr>
1193<tr><th>options</th>
1194 <td class="description">Options</td></tr>
1195</tbody></table>
1196<h4 class="returnvalue">Return Value</h4>
1197 <p class="description">New number of options</p>
98d88c8d 1198<h3 class="function"><span class="info">&#160;CUPS 2.2.4/macOS 10.13&#160;</span><a id="cupsAddIntegerOption">cupsAddIntegerOption</a></h3>
53af7f21 1199 <p class="description">Add an integer option to an option array.</p>
798d6e29 1200<p class="code">
98d88c8d
MS
1201int cupsAddIntegerOption(const char *name, int value, int num_options, <a href="#cups_option_t">cups_option_t</a> **options);</p>
1202<h4 class="parameters">Parameters</h4>
1203<table class="list"><tbody>
1204<tr><th>name</th>
1205 <td class="description">Name of option</td></tr>
1206<tr><th>value</th>
1207 <td class="description">Value of option</td></tr>
1208<tr><th>num_options</th>
1209 <td class="description">Number of options</td></tr>
1210<tr><th>options</th>
1211 <td class="description">Pointer to options</td></tr>
1212</tbody></table>
798d6e29
MS
1213<h4 class="returnvalue">Return Value</h4>
1214 <p class="description">Number of options</p>
1215<h4 class="discussion">Discussion</h4>
1216 <p class="discussion">New option arrays can be initialized simply by passing 0 for the
53af7f21 1217&quot;num_options&quot; parameter.
798d6e29
MS
1218
1219</p>
53af7f21
MS
1220<h3 class="function"><a id="cupsAddOption">cupsAddOption</a></h3>
1221 <p class="description">Add an option to an option array.</p>
798d6e29 1222<p class="code">
98d88c8d
MS
1223int cupsAddOption(const char *name, const char *value, int num_options, <a href="#cups_option_t">cups_option_t</a> **options);</p>
1224<h4 class="parameters">Parameters</h4>
1225<table class="list"><tbody>
1226<tr><th>name</th>
1227 <td class="description">Name of option</td></tr>
1228<tr><th>value</th>
1229 <td class="description">Value of option</td></tr>
1230<tr><th>num_options</th>
1231 <td class="description">Number of options</td></tr>
1232<tr><th>options</th>
1233 <td class="description">Pointer to options</td></tr>
1234</tbody></table>
798d6e29 1235<h4 class="returnvalue">Return Value</h4>
53af7f21 1236 <p class="description">Number of options</p>
798d6e29 1237<h4 class="discussion">Discussion</h4>
53af7f21
MS
1238 <p class="discussion">New option arrays can be initialized simply by passing 0 for the
1239&quot;num_options&quot; parameter.</p>
98d88c8d 1240<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCancelDestJob">cupsCancelDestJob</a></h3>
798d6e29 1241 <p class="description">Cancel a job on a destination.</p>
98d88c8d
MS
1242<p class="code">
1243ipp_status_t cupsCancelDestJob(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, int job_id);</p>
1244<h4 class="parameters">Parameters</h4>
1245<table class="list"><tbody>
1246<tr><th>http</th>
1247 <td class="description">Connection to destination</td></tr>
1248<tr><th>dest</th>
1249 <td class="description">Destination</td></tr>
1250<tr><th>job_id</th>
1251 <td class="description">Job ID</td></tr>
1252</tbody></table>
1253<h4 class="returnvalue">Return Value</h4>
1254 <p class="description">Status of cancel operation</p>
1255<h4 class="discussion">Discussion</h4>
798d6e29
MS
1256 <p class="discussion">The &quot;job_id&quot; is the number returned by cupsCreateDestJob.<br>
1257<br>
1258Returns <code>IPP_STATUS_OK</code> on success and
98d88c8d 1259<code>IPP_STATUS_ERROR_NOT_AUTHORIZED</code> or
798d6e29
MS
1260<code>IPP_STATUS_ERROR_FORBIDDEN</code> on failure.
1261
798d6e29
MS
1262</p>
1263<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCheckDestSupported">cupsCheckDestSupported</a></h3>
1264 <p class="description">Check that the option and value are supported
1265by the destination.</p>
1266<p class="code">
98d88c8d
MS
1267int cupsCheckDestSupported(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option, const char *value);</p>
1268<h4 class="parameters">Parameters</h4>
1269<table class="list"><tbody>
1270<tr><th>http</th>
1271 <td class="description">Connection to destination</td></tr>
1272<tr><th>dest</th>
1273 <td class="description">Destination</td></tr>
1274<tr><th>dinfo</th>
1275 <td class="description">Destination information</td></tr>
1276<tr><th>option</th>
1277 <td class="description">Option</td></tr>
1278<tr><th>value</th>
b0fb2d75 1279 <td class="description">Value or <code>NULL</code></td></tr>
98d88c8d 1280</tbody></table>
798d6e29
MS
1281<h4 class="returnvalue">Return Value</h4>
1282 <p class="description">1 if supported, 0 otherwise</p>
1283<h4 class="discussion">Discussion</h4>
1284 <p class="discussion">Returns 1 if supported, 0 otherwise.
1285
1286</p>
1287<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCloseDestJob">cupsCloseDestJob</a></h3>
1288 <p class="description">Close a job and start printing.</p>
1289<p class="code">
98d88c8d
MS
1290ipp_status_t cupsCloseDestJob(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *info, int job_id);</p>
1291<h4 class="parameters">Parameters</h4>
1292<table class="list"><tbody>
1293<tr><th>http</th>
1294 <td class="description">Connection to destination</td></tr>
1295<tr><th>dest</th>
1296 <td class="description">Destination</td></tr>
1297<tr><th>info</th>
1298 <td class="description">Destination information</td></tr>
1299<tr><th>job_id</th>
1300 <td class="description">Job ID</td></tr>
1301</tbody></table>
798d6e29
MS
1302<h4 class="returnvalue">Return Value</h4>
1303 <p class="description">IPP status code</p>
1304<h4 class="discussion">Discussion</h4>
1305 <p class="discussion">Use when the last call to cupsStartDocument passed 0 for &quot;last_document&quot;.
1306&quot;job_id&quot; is the job ID returned by cupsCreateDestJob. Returns <code>IPP_STATUS_OK</code>
1307on success.
1308
1309</p>
1310<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsConnectDest">cupsConnectDest</a></h3>
98d88c8d
MS
1311 <p class="description">Open a conection to the destination.</p>
1312<p class="code">
1313<a href="#http_t">http_t</a> *cupsConnectDest(<a href="#cups_dest_t">cups_dest_t</a> *dest, unsigned flags, int msec, int *cancel, char *resource, size_t resourcesize, <a href="#cups_dest_cb_t">cups_dest_cb_t</a> cb, void *user_data);</p>
1314<h4 class="parameters">Parameters</h4>
1315<table class="list"><tbody>
1316<tr><th>dest</th>
1317 <td class="description">Destination</td></tr>
1318<tr><th>flags</th>
1319 <td class="description">Connection flags</td></tr>
1320<tr><th>msec</th>
1321 <td class="description">Timeout in milliseconds</td></tr>
1322<tr><th>cancel</th>
1323 <td class="description">Pointer to &quot;cancel&quot; variable</td></tr>
1324<tr><th>resource</th>
1325 <td class="description">Resource buffer</td></tr>
1326<tr><th>resourcesize</th>
1327 <td class="description">Size of resource buffer</td></tr>
1328<tr><th>cb</th>
1329 <td class="description">Callback function</td></tr>
1330<tr><th>user_data</th>
1331 <td class="description">User data pointer</td></tr>
1332</tbody></table>
1333<h4 class="returnvalue">Return Value</h4>
1334 <p class="description">Connection to destination or <code>NULL</code></p>
1335<h4 class="discussion">Discussion</h4>
1336 <p class="discussion">Connect to the destination, returning a new <code>http_t</code> connection object
1337and optionally the resource path to use for the destination. These calls
1338will block until a connection is made, the timeout expires, the integer
1339pointed to by &quot;cancel&quot; is non-zero, or the callback function (or block)
1340returns 0. The caller is responsible for calling <a href="#httpClose"><code>httpClose</code></a> on the
b0fb2d75
MS
1341returned connection.<br>
1342<br>
1343Starting with CUPS 2.2.4, the caller can pass <code>CUPS_DEST_FLAGS_DEVICE</code>
1344for the &quot;flags&quot; argument to connect directly to the device associated with
1345the destination. Otherwise, the connection is made to the CUPS scheduler
1346associated with the destination.
798d6e29
MS
1347
1348</p>
53af7f21
MS
1349<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCopyDest">cupsCopyDest</a></h3>
1350 <p class="description">Copy a destination.</p>
798d6e29 1351<p class="code">
98d88c8d
MS
1352int cupsCopyDest(<a href="#cups_dest_t">cups_dest_t</a> *dest, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> **dests);</p>
1353<h4 class="parameters">Parameters</h4>
1354<table class="list"><tbody>
1355<tr><th>dest</th>
1356 <td class="description">Destination to copy</td></tr>
1357<tr><th>num_dests</th>
1358 <td class="description">Number of destinations</td></tr>
1359<tr><th>dests</th>
1360 <td class="description">Destination array</td></tr>
1361</tbody></table>
798d6e29
MS
1362<h4 class="returnvalue">Return Value</h4>
1363 <p class="description">New number of destinations</p>
1364<h4 class="discussion">Discussion</h4>
1365 <p class="discussion">Make a copy of the destination to an array of destinations (or just a single
1366copy) - for use with the cupsEnumDests* functions. The caller is responsible
1367for calling cupsFreeDests() on the returned object(s).
1368
1369</p>
1370<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCopyDestConflicts">cupsCopyDestConflicts</a></h3>
1371 <p class="description">Get conflicts and resolutions for a new
1372option/value pair.</p>
1373<p class="code">
98d88c8d
MS
1374int cupsCopyDestConflicts(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, int num_options, <a href="#cups_option_t">cups_option_t</a> *options, const char *new_option, const char *new_value, int *num_conflicts, <a href="#cups_option_t">cups_option_t</a> **conflicts, int *num_resolved, <a href="#cups_option_t">cups_option_t</a> **resolved);</p>
1375<h4 class="parameters">Parameters</h4>
1376<table class="list"><tbody>
1377<tr><th>http</th>
1378 <td class="description">Connection to destination</td></tr>
1379<tr><th>dest</th>
1380 <td class="description">Destination</td></tr>
1381<tr><th>dinfo</th>
1382 <td class="description">Destination information</td></tr>
1383<tr><th>num_options</th>
1384 <td class="description">Number of current options</td></tr>
1385<tr><th>options</th>
1386 <td class="description">Current options</td></tr>
1387<tr><th>new_option</th>
1388 <td class="description">New option</td></tr>
1389<tr><th>new_value</th>
1390 <td class="description">New value</td></tr>
1391<tr><th>num_conflicts</th>
1392 <td class="description">Number of conflicting options</td></tr>
1393<tr><th>conflicts</th>
1394 <td class="description">Conflicting options</td></tr>
1395<tr><th>num_resolved</th>
1396 <td class="description">Number of options to resolve</td></tr>
1397<tr><th>resolved</th>
1398 <td class="description">Resolved options</td></tr>
1399</tbody></table>
798d6e29
MS
1400<h4 class="returnvalue">Return Value</h4>
1401 <p class="description">1 if there is a conflict, 0 if none, -1 on error</p>
1402<h4 class="discussion">Discussion</h4>
1403 <p class="discussion">&quot;num_options&quot; and &quot;options&quot; represent the currently selected options by the
1404user. &quot;new_option&quot; and &quot;new_value&quot; are the setting the user has just
1405changed.<br>
1406<br>
1407Returns 1 if there is a conflict, 0 if there are no conflicts, and -1 if
1408there was an unrecoverable error such as a resolver loop.<br>
1409<br>
1410If &quot;num_conflicts&quot; and &quot;conflicts&quot; are not <code>NULL</code>, they are set to
1411contain the list of conflicting option/value pairs. Similarly, if
1412&quot;num_resolved&quot; and &quot;resolved&quot; are not <code>NULL</code> they will be set to the
1413list of changes needed to resolve the conflict.<br>
1414<br>
1415If cupsCopyDestConflicts returns 1 but &quot;num_resolved&quot; and &quot;resolved&quot; are set
1416to 0 and <code>NULL</code>, respectively, then the conflict cannot be resolved.
1417
1418</p>
1419<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCopyDestInfo">cupsCopyDestInfo</a></h3>
1420 <p class="description">Get the supported values/capabilities for the
1421destination.</p>
1422<p class="code">
98d88c8d 1423<a href="#cups_dinfo_t">cups_dinfo_t</a> *cupsCopyDestInfo(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest);</p>
798d6e29 1424<h4 class="parameters">Parameters</h4>
98d88c8d
MS
1425<table class="list"><tbody>
1426<tr><th>http</th>
1427 <td class="description">Connection to destination</td></tr>
1428<tr><th>dest</th>
1429 <td class="description">Destination</td></tr>
1430</tbody></table>
798d6e29
MS
1431<h4 class="returnvalue">Return Value</h4>
1432 <p class="description">Destination information</p>
1433<h4 class="discussion">Discussion</h4>
1434 <p class="discussion">The caller is responsible for calling <a href="#cupsFreeDestInfo"><code>cupsFreeDestInfo</code></a> on the return
1435value. <code>NULL</code> is returned on error.
1436
1437</p>
1438<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsCreateDestJob">cupsCreateDestJob</a></h3>
1439 <p class="description">Create a job on a destination.</p>
1440<p class="code">
98d88c8d
MS
1441ipp_status_t cupsCreateDestJob(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *info, int *job_id, const char *title, int num_options, <a href="#cups_option_t">cups_option_t</a> *options);</p>
1442<h4 class="parameters">Parameters</h4>
1443<table class="list"><tbody>
1444<tr><th>http</th>
1445 <td class="description">Connection to destination</td></tr>
1446<tr><th>dest</th>
1447 <td class="description">Destination</td></tr>
1448<tr><th>info</th>
1449 <td class="description">Destination information</td></tr>
1450<tr><th>job_id</th>
1451 <td class="description">Job ID or 0 on error</td></tr>
1452<tr><th>title</th>
1453 <td class="description">Job name</td></tr>
1454<tr><th>num_options</th>
1455 <td class="description">Number of job options</td></tr>
1456<tr><th>options</th>
1457 <td class="description">Job options</td></tr>
1458</tbody></table>
798d6e29
MS
1459<h4 class="returnvalue">Return Value</h4>
1460 <p class="description">IPP status code</p>
1461<h4 class="discussion">Discussion</h4>
1462 <p class="discussion">Returns <code>IPP_STATUS_OK</code> or <code>IPP_STATUS_OK_SUBST</code> on success, saving the job ID
1463in the variable pointed to by &quot;job_id&quot;.
1464
1465</p>
798d6e29
MS
1466<h3 class="function"><span class="info">&#160;CUPS 1.1.20/macOS 10.4&#160;</span><a id="cupsDoAuthentication">cupsDoAuthentication</a></h3>
1467 <p class="description">Authenticate a request.</p>
1468<p class="code">
98d88c8d
MS
1469int cupsDoAuthentication(<a href="#http_t">http_t</a> *http, const char *method, const char *resource);</p>
1470<h4 class="parameters">Parameters</h4>
1471<table class="list"><tbody>
1472<tr><th>http</th>
1473 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
1474<tr><th>method</th>
1475 <td class="description">Request method (&quot;GET&quot;, &quot;POST&quot;, &quot;PUT&quot;)</td></tr>
1476<tr><th>resource</th>
1477 <td class="description">Resource path</td></tr>
1478</tbody></table>
798d6e29
MS
1479<h4 class="returnvalue">Return Value</h4>
1480 <p class="description">0 on success, -1 on error</p>
1481<h4 class="discussion">Discussion</h4>
1482 <p class="discussion">This function should be called in response to a <code>HTTP_STATUS_UNAUTHORIZED</code>
1483status, prior to resubmitting your request.
1484
1485</p>
1486<h3 class="function"><a id="cupsEncodeOptions">cupsEncodeOptions</a></h3>
53af7f21 1487 <p class="description">Encode printer options into IPP attributes.</p>
98d88c8d
MS
1488<p class="code">
1489void cupsEncodeOptions(<a href="#ipp_t">ipp_t</a> *ipp, int num_options, <a href="#cups_option_t">cups_option_t</a> *options);</p>
1490<h4 class="parameters">Parameters</h4>
1491<table class="list"><tbody>
1492<tr><th>ipp</th>
1493 <td class="description">Request to add to</td></tr>
1494<tr><th>num_options</th>
1495 <td class="description">Number of options</td></tr>
1496<tr><th>options</th>
1497 <td class="description">Options</td></tr>
1498</tbody></table>
1499<h4 class="discussion">Discussion</h4>
798d6e29 1500 <p class="discussion">This function adds operation, job, and then subscription attributes,
98d88c8d
MS
1501in that order. Use the <a href="#cupsEncodeOptions2"><code>cupsEncodeOptions2</code></a> function to add attributes
1502for a single group.</p>
1503<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="cupsEncodeOptions2">cupsEncodeOptions2</a></h3>
53af7f21 1504 <p class="description">Encode printer options into IPP attributes for a group.</p>
98d88c8d
MS
1505<p class="code">
1506void cupsEncodeOptions2(<a href="#ipp_t">ipp_t</a> *ipp, int num_options, <a href="#cups_option_t">cups_option_t</a> *options, ipp_tag_t group_tag);</p>
1507<h4 class="parameters">Parameters</h4>
1508<table class="list"><tbody>
1509<tr><th>ipp</th>
1510 <td class="description">Request to add to</td></tr>
1511<tr><th>num_options</th>
1512 <td class="description">Number of options</td></tr>
1513<tr><th>options</th>
1514 <td class="description">Options</td></tr>
1515<tr><th>group_tag</th>
1516 <td class="description">Group to encode</td></tr>
1517</tbody></table>
1518<h4 class="discussion">Discussion</h4>
798d6e29 1519 <p class="discussion">This function only adds attributes for a single group. Call this
98d88c8d 1520function multiple times for each group, or use <a href="#cupsEncodeOptions"><code>cupsEncodeOptions</code></a>
798d6e29
MS
1521to add the standard groups.
1522
1523</p>
1524<h3 class="function"><a id="cupsEncryption">cupsEncryption</a></h3>
1525 <p class="description">Get the current encryption settings.</p>
1526<p class="code">
98d88c8d 1527<a href="#http_encryption_t">http_encryption_t</a> cupsEncryption(void);</p>
798d6e29
MS
1528<h4 class="returnvalue">Return Value</h4>
1529 <p class="description">Encryption settings</p>
1530<h4 class="discussion">Discussion</h4>
1531 <p class="discussion">The default encryption setting comes from the CUPS_ENCRYPTION
1532environment variable, then the ~/.cups/client.conf file, and finally the
1533/etc/cups/client.conf file. If not set, the default is
1534<code>HTTP_ENCRYPTION_IF_REQUESTED</code>.<br>
1535<br>
1536Note: The current encryption setting is tracked separately for each thread
1537in a program. Multi-threaded programs that override the setting via the
1538<a href="#cupsSetEncryption"><code>cupsSetEncryption</code></a> function need to do so in each thread for the same
1539setting to be used.</p>
1540<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsEnumDests">cupsEnumDests</a></h3>
1541 <p class="description">Enumerate available destinations with a callback function.</p>
1542<p class="code">
98d88c8d
MS
1543int cupsEnumDests(unsigned flags, int msec, int *cancel, <a href="#cups_ptype_t">cups_ptype_t</a> type, <a href="#cups_ptype_t">cups_ptype_t</a> mask, <a href="#cups_dest_cb_t">cups_dest_cb_t</a> cb, void *user_data);</p>
1544<h4 class="parameters">Parameters</h4>
1545<table class="list"><tbody>
1546<tr><th>flags</th>
1547 <td class="description">Enumeration flags</td></tr>
1548<tr><th>msec</th>
1549 <td class="description">Timeout in milliseconds, -1 for indefinite</td></tr>
1550<tr><th>cancel</th>
1551 <td class="description">Pointer to &quot;cancel&quot; variable</td></tr>
1552<tr><th>type</th>
1553 <td class="description">Printer type bits</td></tr>
1554<tr><th>mask</th>
1555 <td class="description">Mask for printer type bits</td></tr>
1556<tr><th>cb</th>
1557 <td class="description">Callback function</td></tr>
1558<tr><th>user_data</th>
1559 <td class="description">User data</td></tr>
1560</tbody></table>
798d6e29
MS
1561<h4 class="returnvalue">Return Value</h4>
1562 <p class="description">1 on success, 0 on failure</p>
1563<h4 class="discussion">Discussion</h4>
53af7f21
MS
1564 <p class="discussion">Destinations are enumerated from one or more sources. The callback function
1565receives the <code>user_data</code> pointer and the destination pointer which can
1566be used as input to the <a href="#cupsCopyDest"><code>cupsCopyDest</code></a> function. The function must
1567return 1 to continue enumeration or 0 to stop.<br>
798d6e29 1568<br>
53af7f21
MS
1569The <code>type</code> and <code>mask</code> arguments allow the caller to filter the
1570destinations that are enumerated. Passing 0 for both will enumerate all
1571printers. The constant <code>CUPS_PRINTER_DISCOVERED</code> is used to filter on
1572destinations that are available but have not yet been added locally.<br>
798d6e29
MS
1573<br>
1574Enumeration happens on the current thread and does not return until all
718ee2ff
MS
1575destinations have been enumerated or the callback function returns 0.<br>
1576<br>
1577Note: The callback function will likely receive multiple updates for the same
1578destinations - it is up to the caller to suppress any duplicate destinations.
798d6e29
MS
1579
1580</p>
798d6e29
MS
1581<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsFindDestDefault">cupsFindDestDefault</a></h3>
1582 <p class="description">Find the default value(s) for the given option.</p>
1583<p class="code">
98d88c8d
MS
1584<a href="#ipp_attribute_t">ipp_attribute_t</a> *cupsFindDestDefault(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option);</p>
1585<h4 class="parameters">Parameters</h4>
1586<table class="list"><tbody>
1587<tr><th>http</th>
1588 <td class="description">Connection to destination</td></tr>
1589<tr><th>dest</th>
1590 <td class="description">Destination</td></tr>
1591<tr><th>dinfo</th>
1592 <td class="description">Destination information</td></tr>
1593<tr><th>option</th>
1594 <td class="description">Option/attribute name</td></tr>
1595</tbody></table>
798d6e29
MS
1596<h4 class="returnvalue">Return Value</h4>
1597 <p class="description">Default attribute or <code>NULL</code> for none</p>
1598<h4 class="discussion">Discussion</h4>
1599 <p class="discussion">The returned value is an IPP attribute. Use the <code>ippGetBoolean</code>,
1600<code>ippGetCollection</code>, <code>ippGetCount</code>, <code>ippGetDate</code>,
1601<code>ippGetInteger</code>, <code>ippGetOctetString</code>, <code>ippGetRange</code>,
1602<code>ippGetResolution</code>, <code>ippGetString</code>, and <code>ippGetValueTag</code>
1603functions to inspect the default value(s) as needed.
1604
1605</p>
1606<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsFindDestReady">cupsFindDestReady</a></h3>
1607 <p class="description">Find the default value(s) for the given option.</p>
1608<p class="code">
98d88c8d
MS
1609<a href="#ipp_attribute_t">ipp_attribute_t</a> *cupsFindDestReady(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option);</p>
1610<h4 class="parameters">Parameters</h4>
1611<table class="list"><tbody>
1612<tr><th>http</th>
1613 <td class="description">Connection to destination</td></tr>
1614<tr><th>dest</th>
1615 <td class="description">Destination</td></tr>
1616<tr><th>dinfo</th>
1617 <td class="description">Destination information</td></tr>
1618<tr><th>option</th>
1619 <td class="description">Option/attribute name</td></tr>
1620</tbody></table>
798d6e29
MS
1621<h4 class="returnvalue">Return Value</h4>
1622 <p class="description">Default attribute or <code>NULL</code> for none</p>
1623<h4 class="discussion">Discussion</h4>
1624 <p class="discussion">The returned value is an IPP attribute. Use the <code>ippGetBoolean</code>,
1625<code>ippGetCollection</code>, <code>ippGetCount</code>, <code>ippGetDate</code>,
1626<code>ippGetInteger</code>, <code>ippGetOctetString</code>, <code>ippGetRange</code>,
1627<code>ippGetResolution</code>, <code>ippGetString</code>, and <code>ippGetValueTag</code>
1628functions to inspect the default value(s) as needed.
1629
1630</p>
1631<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsFindDestSupported">cupsFindDestSupported</a></h3>
1632 <p class="description">Find the default value(s) for the given option.</p>
1633<p class="code">
98d88c8d
MS
1634<a href="#ipp_attribute_t">ipp_attribute_t</a> *cupsFindDestSupported(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option);</p>
1635<h4 class="parameters">Parameters</h4>
1636<table class="list"><tbody>
1637<tr><th>http</th>
1638 <td class="description">Connection to destination</td></tr>
1639<tr><th>dest</th>
1640 <td class="description">Destination</td></tr>
1641<tr><th>dinfo</th>
1642 <td class="description">Destination information</td></tr>
1643<tr><th>option</th>
1644 <td class="description">Option/attribute name</td></tr>
1645</tbody></table>
798d6e29
MS
1646<h4 class="returnvalue">Return Value</h4>
1647 <p class="description">Default attribute or <code>NULL</code> for none</p>
1648<h4 class="discussion">Discussion</h4>
1649 <p class="discussion">The returned value is an IPP attribute. Use the <code>ippGetBoolean</code>,
1650<code>ippGetCollection</code>, <code>ippGetCount</code>, <code>ippGetDate</code>,
1651<code>ippGetInteger</code>, <code>ippGetOctetString</code>, <code>ippGetRange</code>,
1652<code>ippGetResolution</code>, <code>ippGetString</code>, and <code>ippGetValueTag</code>
1653functions to inspect the default value(s) as needed.
1654
1655</p>
1656<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsFinishDestDocument">cupsFinishDestDocument</a></h3>
1657 <p class="description">Finish the current document.</p>
1658<p class="code">
98d88c8d
MS
1659ipp_status_t cupsFinishDestDocument(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *info);</p>
1660<h4 class="parameters">Parameters</h4>
1661<table class="list"><tbody>
1662<tr><th>http</th>
1663 <td class="description">Connection to destination</td></tr>
1664<tr><th>dest</th>
1665 <td class="description">Destination</td></tr>
1666<tr><th>info</th>
1667 <td class="description">Destination information</td></tr>
1668</tbody></table>
798d6e29
MS
1669<h4 class="returnvalue">Return Value</h4>
1670 <p class="description">Status of document submission</p>
1671<h4 class="discussion">Discussion</h4>
1672 <p class="discussion">Returns <code>IPP_STATUS_OK</code> or <code>IPP_STATUS_OK_SUBST</code> on success.
1673
798d6e29 1674</p>
98d88c8d 1675<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsFreeDestInfo">cupsFreeDestInfo</a></h3>
53af7f21
MS
1676 <p class="description">Free destination information obtained using
1677<a href="#cupsCopyDestInfo"><code>cupsCopyDestInfo</code></a>.</p>
798d6e29 1678<p class="code">
98d88c8d 1679void cupsFreeDestInfo(<a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo);</p>
798d6e29 1680<h4 class="parameters">Parameters</h4>
98d88c8d
MS
1681<table class="list"><tbody>
1682<tr><th>dinfo</th>
1683 <td class="description">Destination information</td></tr>
1684</tbody></table>
1685<h3 class="function"><a id="cupsFreeDests">cupsFreeDests</a></h3>
53af7f21 1686 <p class="description">Free the memory used by the list of destinations.</p>
798d6e29 1687<p class="code">
98d88c8d 1688void cupsFreeDests(int num_dests, <a href="#cups_dest_t">cups_dest_t</a> *dests);</p>
798d6e29 1689<h4 class="parameters">Parameters</h4>
98d88c8d
MS
1690<table class="list"><tbody>
1691<tr><th>num_dests</th>
1692 <td class="description">Number of destinations</td></tr>
1693<tr><th>dests</th>
1694 <td class="description">Destinations</td></tr>
1695</tbody></table>
1696<h3 class="function"><a id="cupsFreeJobs">cupsFreeJobs</a></h3>
53af7f21 1697 <p class="description">Free memory used by job data.</p>
798d6e29 1698<p class="code">
98d88c8d 1699void cupsFreeJobs(int num_jobs, <a href="#cups_job_t">cups_job_t</a> *jobs);</p>
798d6e29 1700<h4 class="parameters">Parameters</h4>
98d88c8d
MS
1701<table class="list"><tbody>
1702<tr><th>num_jobs</th>
1703 <td class="description">Number of jobs</td></tr>
1704<tr><th>jobs</th>
1705 <td class="description">Jobs</td></tr>
1706</tbody></table>
1707<h3 class="function"><a id="cupsFreeOptions">cupsFreeOptions</a></h3>
53af7f21 1708 <p class="description">Free all memory used by options.</p>
98d88c8d
MS
1709<p class="code">
1710void cupsFreeOptions(int num_options, <a href="#cups_option_t">cups_option_t</a> *options);</p>
1711<h4 class="parameters">Parameters</h4>
1712<table class="list"><tbody>
1713<tr><th>num_options</th>
1714 <td class="description">Number of options</td></tr>
1715<tr><th>options</th>
1716 <td class="description">Pointer to options</td></tr>
1717</tbody></table>
798d6e29
MS
1718<h3 class="function"><a id="cupsGetDest">cupsGetDest</a></h3>
1719 <p class="description">Get the named destination from the list.</p>
1720<p class="code">
98d88c8d
MS
1721<a href="#cups_dest_t">cups_dest_t</a> *cupsGetDest(const char *name, const char *instance, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> *dests);</p>
1722<h4 class="parameters">Parameters</h4>
1723<table class="list"><tbody>
1724<tr><th>name</th>
1725 <td class="description">Destination name or <code>NULL</code> for the default destination</td></tr>
1726<tr><th>instance</th>
1727 <td class="description">Instance name or <code>NULL</code></td></tr>
1728<tr><th>num_dests</th>
1729 <td class="description">Number of destinations</td></tr>
1730<tr><th>dests</th>
1731 <td class="description">Destinations</td></tr>
1732</tbody></table>
798d6e29
MS
1733<h4 class="returnvalue">Return Value</h4>
1734 <p class="description">Destination pointer or <code>NULL</code></p>
1735<h4 class="discussion">Discussion</h4>
98d88c8d 1736 <p class="discussion">Use the <a href="#cupsEnumDests"><code>cupsEnumDests</code></a> or <a href="#cupsGetDests2"><code>cupsGetDests2</code></a> functions to get a
798d6e29
MS
1737list of supported destinations for the current user.</p>
1738<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsGetDestMediaByIndex">cupsGetDestMediaByIndex</a></h3>
1739 <p class="description">Get a media name, dimension, and margins for a
1740specific size.</p>
1741<p class="code">
98d88c8d
MS
1742int cupsGetDestMediaByIndex(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, int n, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size);</p>
1743<h4 class="parameters">Parameters</h4>
1744<table class="list"><tbody>
1745<tr><th>http</th>
1746 <td class="description">Connection to destination</td></tr>
1747<tr><th>dest</th>
1748 <td class="description">Destination</td></tr>
1749<tr><th>dinfo</th>
1750 <td class="description">Destination information</td></tr>
1751<tr><th>n</th>
1752 <td class="description">Media size number (0-based)</td></tr>
1753<tr><th>flags</th>
1754 <td class="description">Media flags</td></tr>
1755<tr><th>size</th>
1756 <td class="description">Media size information</td></tr>
1757</tbody></table>
798d6e29
MS
1758<h4 class="returnvalue">Return Value</h4>
1759 <p class="description">1 on success, 0 on failure</p>
1760<h4 class="discussion">Discussion</h4>
1761 <p class="discussion">The <code>flags</code> parameter determines which set of media are indexed. For
1762example, passing <code>CUPS_MEDIA_FLAGS_BORDERLESS</code> will get the Nth
1763borderless size supported by the printer.
1764
1765</p>
1766<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsGetDestMediaByName">cupsGetDestMediaByName</a></h3>
1767 <p class="description">Get media names, dimensions, and margins.</p>
1768<p class="code">
98d88c8d
MS
1769int cupsGetDestMediaByName(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *media, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size);</p>
1770<h4 class="parameters">Parameters</h4>
1771<table class="list"><tbody>
1772<tr><th>http</th>
1773 <td class="description">Connection to destination</td></tr>
1774<tr><th>dest</th>
1775 <td class="description">Destination</td></tr>
1776<tr><th>dinfo</th>
1777 <td class="description">Destination information</td></tr>
1778<tr><th>media</th>
1779 <td class="description">Media name</td></tr>
1780<tr><th>flags</th>
1781 <td class="description">Media matching flags</td></tr>
1782<tr><th>size</th>
1783 <td class="description">Media size information</td></tr>
1784</tbody></table>
798d6e29
MS
1785<h4 class="returnvalue">Return Value</h4>
1786 <p class="description">1 on match, 0 on failure</p>
1787<h4 class="discussion">Discussion</h4>
1788 <p class="discussion">The &quot;media&quot; string is a PWG media name. &quot;Flags&quot; provides some matching
1789guidance (multiple flags can be combined):<br>
1790<br>
1791CUPS_MEDIA_FLAGS_DEFAULT = find the closest size supported by the printer,
1792CUPS_MEDIA_FLAGS_BORDERLESS = find a borderless size,
1793CUPS_MEDIA_FLAGS_DUPLEX = find a size compatible with 2-sided printing,
1794CUPS_MEDIA_FLAGS_EXACT = find an exact match for the size, and
1795CUPS_MEDIA_FLAGS_READY = if the printer supports media sensing, find the
1796size amongst the &quot;ready&quot; media.<br>
1797<br>
1798The matching result (if any) is returned in the &quot;cups_size_t&quot; structure.<br>
1799<br>
1800Returns 1 when there is a match and 0 if there is not a match.
1801
1802</p>
1803<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsGetDestMediaBySize">cupsGetDestMediaBySize</a></h3>
1804 <p class="description">Get media names, dimensions, and margins.</p>
1805<p class="code">
98d88c8d
MS
1806int cupsGetDestMediaBySize(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, int width, int length, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size);</p>
1807<h4 class="parameters">Parameters</h4>
1808<table class="list"><tbody>
1809<tr><th>http</th>
1810 <td class="description">Connection to destination</td></tr>
1811<tr><th>dest</th>
1812 <td class="description">Destination</td></tr>
1813<tr><th>dinfo</th>
1814 <td class="description">Destination information</td></tr>
1815<tr><th>width</th>
1816 <td class="description">Media width in hundredths of
1817of millimeters</td></tr>
1818<tr><th>length</th>
1819 <td class="description">Media length in hundredths of
1820of millimeters</td></tr>
1821<tr><th>flags</th>
1822 <td class="description">Media matching flags</td></tr>
1823<tr><th>size</th>
1824 <td class="description">Media size information</td></tr>
1825</tbody></table>
798d6e29
MS
1826<h4 class="returnvalue">Return Value</h4>
1827 <p class="description">1 on match, 0 on failure</p>
1828<h4 class="discussion">Discussion</h4>
1829 <p class="discussion">&quot;Width&quot; and &quot;length&quot; are the dimensions in hundredths of millimeters.
1830&quot;Flags&quot; provides some matching guidance (multiple flags can be combined):<br>
1831<br>
1832CUPS_MEDIA_FLAGS_DEFAULT = find the closest size supported by the printer,
1833CUPS_MEDIA_FLAGS_BORDERLESS = find a borderless size,
1834CUPS_MEDIA_FLAGS_DUPLEX = find a size compatible with 2-sided printing,
1835CUPS_MEDIA_FLAGS_EXACT = find an exact match for the size, and
1836CUPS_MEDIA_FLAGS_READY = if the printer supports media sensing, find the
1837size amongst the &quot;ready&quot; media.<br>
1838<br>
1839The matching result (if any) is returned in the &quot;cups_size_t&quot; structure.<br>
1840<br>
1841Returns 1 when there is a match and 0 if there is not a match.
1842
1843</p>
1844<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsGetDestMediaCount">cupsGetDestMediaCount</a></h3>
1845 <p class="description">Get the number of sizes supported by a
1846destination.</p>
1847<p class="code">
98d88c8d
MS
1848int cupsGetDestMediaCount(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, unsigned flags);</p>
1849<h4 class="parameters">Parameters</h4>
1850<table class="list"><tbody>
1851<tr><th>http</th>
1852 <td class="description">Connection to destination</td></tr>
1853<tr><th>dest</th>
1854 <td class="description">Destination</td></tr>
1855<tr><th>dinfo</th>
1856 <td class="description">Destination information</td></tr>
1857<tr><th>flags</th>
1858 <td class="description">Media flags</td></tr>
1859</tbody></table>
798d6e29
MS
1860<h4 class="returnvalue">Return Value</h4>
1861 <p class="description">Number of sizes</p>
1862<h4 class="discussion">Discussion</h4>
1863 <p class="discussion">The <code>flags</code> parameter determines the set of media sizes that are
1864counted. For example, passing <code>CUPS_MEDIA_FLAGS_BORDERLESS</code> will return
1865the number of borderless sizes.
1866
1867</p>
1868<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsGetDestMediaDefault">cupsGetDestMediaDefault</a></h3>
1869 <p class="description">Get the default size for a destination.</p>
1870<p class="code">
98d88c8d
MS
1871int cupsGetDestMediaDefault(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size);</p>
1872<h4 class="parameters">Parameters</h4>
1873<table class="list"><tbody>
1874<tr><th>http</th>
1875 <td class="description">Connection to destination</td></tr>
1876<tr><th>dest</th>
1877 <td class="description">Destination</td></tr>
1878<tr><th>dinfo</th>
1879 <td class="description">Destination information</td></tr>
1880<tr><th>flags</th>
1881 <td class="description">Media flags</td></tr>
1882<tr><th>size</th>
1883 <td class="description">Media size information</td></tr>
1884</tbody></table>
798d6e29
MS
1885<h4 class="returnvalue">Return Value</h4>
1886 <p class="description">1 on success, 0 on failure</p>
1887<h4 class="discussion">Discussion</h4>
1888 <p class="discussion">The <code>flags</code> parameter determines which default size is returned. For
1889example, passing <code>CUPS_MEDIA_FLAGS_BORDERLESS</code> will return the default
1890borderless size, typically US Letter or A4, but sometimes 4x6 photo media.
1891
1892</p>
1893<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="cupsGetDestWithURI">cupsGetDestWithURI</a></h3>
1894 <p class="description">Get a destination associated with a URI.</p>
1895<p class="code">
98d88c8d 1896<a href="#cups_dest_t">cups_dest_t</a> *cupsGetDestWithURI(const char *name, const char *uri);</p>
798d6e29 1897<h4 class="parameters">Parameters</h4>
98d88c8d
MS
1898<table class="list"><tbody>
1899<tr><th>name</th>
1900 <td class="description">Desired printer name or <code>NULL</code></td></tr>
1901<tr><th>uri</th>
1902 <td class="description">URI for the printer</td></tr>
1903</tbody></table>
798d6e29
MS
1904<h4 class="returnvalue">Return Value</h4>
1905 <p class="description">Destination or <code>NULL</code></p>
1906<h4 class="discussion">Discussion</h4>
1907 <p class="discussion">&quot;name&quot; is the desired name for the printer. If <code>NULL</code>, a name will be
1908created using the URI.<br>
1909<br>
1910&quot;uri&quot; is the &quot;ipp&quot; or &quot;ipps&quot; URI for the printer.
1911
1912</p>
98d88c8d
MS
1913<h3 class="function"><span class="info">&#160;CUPS 1.1.21/macOS 10.4&#160;</span><a id="cupsGetDests2">cupsGetDests2</a></h3>
1914 <p class="description">Get the list of destinations from the specified server.</p>
1915<p class="code">
1916int cupsGetDests2(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> **dests);</p>
1917<h4 class="parameters">Parameters</h4>
1918<table class="list"><tbody>
1919<tr><th>http</th>
1920 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
1921<tr><th>dests</th>
1922 <td class="description">Destinations</td></tr>
1923</tbody></table>
1924<h4 class="returnvalue">Return Value</h4>
1925 <p class="description">Number of destinations</p>
1926<h4 class="discussion">Discussion</h4>
1927 <p class="discussion">Starting with CUPS 1.2, the returned list of destinations include the
1928&quot;printer-info&quot;, &quot;printer-is-accepting-jobs&quot;, &quot;printer-is-shared&quot;,
1929&quot;printer-make-and-model&quot;, &quot;printer-state&quot;, &quot;printer-state-change-time&quot;,
1930&quot;printer-state-reasons&quot;, &quot;printer-type&quot;, and &quot;printer-uri-supported&quot;
1931attributes as options.<br>
1932<br>
1933CUPS 1.4 adds the &quot;marker-change-time&quot;, &quot;marker-colors&quot;,
1934&quot;marker-high-levels&quot;, &quot;marker-levels&quot;, &quot;marker-low-levels&quot;, &quot;marker-message&quot;,
1935&quot;marker-names&quot;, &quot;marker-types&quot;, and &quot;printer-commands&quot; attributes as options.<br>
1936<br>
1937CUPS 2.2 adds accessible IPP printers to the list of destinations that can
1938be used. The &quot;printer-uri-supported&quot; option will be present for those IPP
1939printers that have been recently used.<br>
1940<br>
1941Use the <a href="#cupsFreeDests"><code>cupsFreeDests</code></a> function to free the destination list and
1942the <a href="#cupsGetDest"><code>cupsGetDest</code></a> function to find a particular destination.
1943
1944</p>
1945<h3 class="function"><span class="info">&#160;CUPS 2.2.4/macOS 10.13&#160;</span><a id="cupsGetIntegerOption">cupsGetIntegerOption</a></h3>
53af7f21 1946 <p class="description">Get an integer option value.</p>
798d6e29 1947<p class="code">
98d88c8d
MS
1948int cupsGetIntegerOption(const char *name, int num_options, <a href="#cups_option_t">cups_option_t</a> *options);</p>
1949<h4 class="parameters">Parameters</h4>
1950<table class="list"><tbody>
1951<tr><th>name</th>
1952 <td class="description">Name of option</td></tr>
1953<tr><th>num_options</th>
1954 <td class="description">Number of options</td></tr>
1955<tr><th>options</th>
1956 <td class="description">Options</td></tr>
1957</tbody></table>
798d6e29 1958<h4 class="returnvalue">Return Value</h4>
53af7f21 1959 <p class="description">Option value or <code>INT_MIN</code></p>
798d6e29 1960<h4 class="discussion">Discussion</h4>
53af7f21
MS
1961 <p class="discussion">INT_MIN is returned when the option does not exist, is not an integer, or
1962exceeds the range of values for the &quot;int&quot; type.
1963
1964</p>
798d6e29
MS
1965<h3 class="function"><span class="info">&#160;CUPS 1.1.21/macOS 10.4&#160;</span><a id="cupsGetJobs2">cupsGetJobs2</a></h3>
1966 <p class="description">Get the jobs from the specified server.</p>
1967<p class="code">
98d88c8d
MS
1968int cupsGetJobs2(<a href="#http_t">http_t</a> *http, <a href="#cups_job_t">cups_job_t</a> **jobs, const char *name, int myjobs, int whichjobs);</p>
1969<h4 class="parameters">Parameters</h4>
1970<table class="list"><tbody>
1971<tr><th>http</th>
1972 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
1973<tr><th>jobs</th>
1974 <td class="description">Job data</td></tr>
1975<tr><th>name</th>
1976 <td class="description"><code>NULL</code> = all destinations, otherwise show jobs for named destination</td></tr>
1977<tr><th>myjobs</th>
1978 <td class="description">0 = all users, 1 = mine</td></tr>
1979<tr><th>whichjobs</th>
1980 <td class="description"><code>CUPS_WHICHJOBS_ALL</code>, <code>CUPS_WHICHJOBS_ACTIVE</code>, or <code>CUPS_WHICHJOBS_COMPLETED</code></td></tr>
1981</tbody></table>
798d6e29
MS
1982<h4 class="returnvalue">Return Value</h4>
1983 <p class="description">Number of jobs</p>
1984<h4 class="discussion">Discussion</h4>
1985 <p class="discussion">A &quot;whichjobs&quot; value of <code>CUPS_WHICHJOBS_ALL</code> returns all jobs regardless
1986of state, while <code>CUPS_WHICHJOBS_ACTIVE</code> returns jobs that are
1987pending, processing, or held and <code>CUPS_WHICHJOBS_COMPLETED</code> returns
1988jobs that are stopped, canceled, aborted, or completed.
1989
1990</p>
1991<h3 class="function"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span><a id="cupsGetNamedDest">cupsGetNamedDest</a></h3>
1992 <p class="description">Get options for the named destination.</p>
1993<p class="code">
98d88c8d
MS
1994<a href="#cups_dest_t">cups_dest_t</a> *cupsGetNamedDest(<a href="#http_t">http_t</a> *http, const char *name, const char *instance);</p>
1995<h4 class="parameters">Parameters</h4>
1996<table class="list"><tbody>
1997<tr><th>http</th>
1998 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
1999<tr><th>name</th>
2000 <td class="description">Destination name or <code>NULL</code> for the default destination</td></tr>
2001<tr><th>instance</th>
2002 <td class="description">Instance name or <code>NULL</code></td></tr>
2003</tbody></table>
798d6e29
MS
2004<h4 class="returnvalue">Return Value</h4>
2005 <p class="description">Destination or <code>NULL</code></p>
2006<h4 class="discussion">Discussion</h4>
2007 <p class="discussion">This function is optimized for retrieving a single destination and should
98d88c8d
MS
2008be used instead of <a href="#cupsGetDests2"><code>cupsGetDests2</code></a> and <a href="#cupsGetDest"><code>cupsGetDest</code></a> when you
2009either know the name of the destination or want to print to the default
2010destination. If <code>NULL</code> is returned, the destination does not exist or
2011there is no default destination.<br>
798d6e29
MS
2012<br>
2013If &quot;http&quot; is <code>CUPS_HTTP_DEFAULT</code>, the connection to the default print
2014server will be used.<br>
2015<br>
2016If &quot;name&quot; is <code>NULL</code>, the default printer for the current user will be
2017returned.<br>
2018<br>
2019The returned destination must be freed using <a href="#cupsFreeDests"><code>cupsFreeDests</code></a> with a
2020&quot;num_dests&quot; value of 1.
2021
2022</p>
2023<h3 class="function"><a id="cupsGetOption">cupsGetOption</a></h3>
2024 <p class="description">Get an option value.</p>
2025<p class="code">
98d88c8d
MS
2026const char *cupsGetOption(const char *name, int num_options, <a href="#cups_option_t">cups_option_t</a> *options);</p>
2027<h4 class="parameters">Parameters</h4>
2028<table class="list"><tbody>
2029<tr><th>name</th>
2030 <td class="description">Name of option</td></tr>
2031<tr><th>num_options</th>
2032 <td class="description">Number of options</td></tr>
2033<tr><th>options</th>
2034 <td class="description">Options</td></tr>
2035</tbody></table>
798d6e29
MS
2036<h4 class="returnvalue">Return Value</h4>
2037 <p class="description">Option value or <code>NULL</code></p>
798d6e29 2038<h3 class="function"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span><a id="cupsGetPassword2">cupsGetPassword2</a></h3>
98d88c8d 2039 <p class="description">Get a password from the user using the current
798d6e29
MS
2040password callback.</p>
2041<p class="code">
98d88c8d
MS
2042const char *cupsGetPassword2(const char *prompt, <a href="#http_t">http_t</a> *http, const char *method, const char *resource);</p>
2043<h4 class="parameters">Parameters</h4>
2044<table class="list"><tbody>
2045<tr><th>prompt</th>
2046 <td class="description">Prompt string</td></tr>
2047<tr><th>http</th>
2048 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
2049<tr><th>method</th>
2050 <td class="description">Request method (&quot;GET&quot;, &quot;POST&quot;, &quot;PUT&quot;)</td></tr>
2051<tr><th>resource</th>
2052 <td class="description">Resource path</td></tr>
2053</tbody></table>
798d6e29
MS
2054<h4 class="returnvalue">Return Value</h4>
2055 <p class="description">Password</p>
2056<h4 class="discussion">Discussion</h4>
2057 <p class="discussion">Uses the current password callback function. Returns <code>NULL</code> if the
2058user does not provide a password.<br>
2059<br>
2060Note: The current password callback function is tracked separately for each
2061thread in a program. Multi-threaded programs that override the setting via
98d88c8d
MS
2062the <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a> function need to do so in each thread for the
2063same function to be used.
798d6e29 2064
798d6e29 2065</p>
798d6e29
MS
2066<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="cupsLocalizeDestMedia">cupsLocalizeDestMedia</a></h3>
2067 <p class="description">Get the localized string for a destination media
2068size.</p>
2069<p class="code">
98d88c8d
MS
2070const char *cupsLocalizeDestMedia(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, unsigned flags, <a href="#cups_size_t">cups_size_t</a> *size);</p>
2071<h4 class="parameters">Parameters</h4>
2072<table class="list"><tbody>
2073<tr><th>http</th>
2074 <td class="description">Connection to destination</td></tr>
2075<tr><th>dest</th>
2076 <td class="description">Destination</td></tr>
2077<tr><th>dinfo</th>
2078 <td class="description">Destination information</td></tr>
2079<tr><th>flags</th>
2080 <td class="description">Media flags</td></tr>
2081<tr><th>size</th>
2082 <td class="description">Media size</td></tr>
2083</tbody></table>
798d6e29
MS
2084<h4 class="returnvalue">Return Value</h4>
2085 <p class="description">Localized string</p>
2086<h4 class="discussion">Discussion</h4>
2087 <p class="discussion">The returned string is stored in the destination information and will become
2088invalid if the destination information is deleted.
2089
2090</p>
2091<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsLocalizeDestOption">cupsLocalizeDestOption</a></h3>
2092 <p class="description">Get the localized string for a destination
2093option.</p>
2094<p class="code">
98d88c8d
MS
2095const char *cupsLocalizeDestOption(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option);</p>
2096<h4 class="parameters">Parameters</h4>
2097<table class="list"><tbody>
2098<tr><th>http</th>
2099 <td class="description">Connection to destination</td></tr>
2100<tr><th>dest</th>
2101 <td class="description">Destination</td></tr>
2102<tr><th>dinfo</th>
2103 <td class="description">Destination information</td></tr>
2104<tr><th>option</th>
2105 <td class="description">Option to localize</td></tr>
2106</tbody></table>
798d6e29
MS
2107<h4 class="returnvalue">Return Value</h4>
2108 <p class="description">Localized string</p>
2109<h4 class="discussion">Discussion</h4>
2110 <p class="discussion">The returned string is stored in the destination information and will become
2111invalid if the destination information is deleted.
2112
2113</p>
2114<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsLocalizeDestValue">cupsLocalizeDestValue</a></h3>
2115 <p class="description">Get the localized string for a destination
2116option+value pair.</p>
2117<p class="code">
98d88c8d
MS
2118const char *cupsLocalizeDestValue(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *dinfo, const char *option, const char *value);</p>
2119<h4 class="parameters">Parameters</h4>
2120<table class="list"><tbody>
2121<tr><th>http</th>
2122 <td class="description">Connection to destination</td></tr>
2123<tr><th>dest</th>
2124 <td class="description">Destination</td></tr>
2125<tr><th>dinfo</th>
2126 <td class="description">Destination information</td></tr>
2127<tr><th>option</th>
2128 <td class="description">Option to localize</td></tr>
2129<tr><th>value</th>
2130 <td class="description">Value to localize</td></tr>
2131</tbody></table>
798d6e29
MS
2132<h4 class="returnvalue">Return Value</h4>
2133 <p class="description">Localized string</p>
2134<h4 class="discussion">Discussion</h4>
2135 <p class="discussion">The returned string is stored in the destination information and will become
2136invalid if the destination information is deleted.
2137
2138</p>
2139<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="cupsMakeServerCredentials">cupsMakeServerCredentials</a></h3>
2140 <p class="description">Make a self-signed certificate and private key pair.</p>
2141<p class="code">
98d88c8d
MS
2142int cupsMakeServerCredentials(const char *path, const char *common_name, int num_alt_names, const char **alt_names, time_t expiration_date);</p>
2143<h4 class="parameters">Parameters</h4>
2144<table class="list"><tbody>
2145<tr><th>path</th>
2146 <td class="description">Keychain path or <code>NULL</code> for default</td></tr>
2147<tr><th>common_name</th>
2148 <td class="description">Common name</td></tr>
2149<tr><th>num_alt_names</th>
2150 <td class="description">Number of subject alternate names</td></tr>
2151<tr><th>alt_names</th>
2152 <td class="description">Subject Alternate Names</td></tr>
2153<tr><th>expiration_date</th>
2154 <td class="description">Expiration date</td></tr>
2155</tbody></table>
798d6e29
MS
2156<h4 class="returnvalue">Return Value</h4>
2157 <p class="description">1 on success, 0 on failure</p>
798d6e29
MS
2158<h3 class="function"><a id="cupsParseOptions">cupsParseOptions</a></h3>
2159 <p class="description">Parse options from a command-line argument.</p>
2160<p class="code">
98d88c8d
MS
2161int cupsParseOptions(const char *arg, int num_options, <a href="#cups_option_t">cups_option_t</a> **options);</p>
2162<h4 class="parameters">Parameters</h4>
2163<table class="list"><tbody>
2164<tr><th>arg</th>
2165 <td class="description">Argument to parse</td></tr>
2166<tr><th>num_options</th>
2167 <td class="description">Number of options</td></tr>
2168<tr><th>options</th>
2169 <td class="description">Options found</td></tr>
2170</tbody></table>
798d6e29
MS
2171<h4 class="returnvalue">Return Value</h4>
2172 <p class="description">Number of options found</p>
2173<h4 class="discussion">Discussion</h4>
2174 <p class="discussion">This function converts space-delimited name/value pairs according
2175to the PAPI text option ABNF specification. Collection values
2176(&quot;name={a=... b=... c=...}&quot;) are stored with the curley brackets
2177intact - use <code>cupsParseOptions</code> on the value to extract the
2178collection attributes.</p>
798d6e29
MS
2179<h3 class="function"><span class="info">&#160;CUPS 1.3/macOS 10.5&#160;</span><a id="cupsRemoveDest">cupsRemoveDest</a></h3>
2180 <p class="description">Remove a destination from the destination list.</p>
2181<p class="code">
98d88c8d
MS
2182int cupsRemoveDest(const char *name, const char *instance, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> **dests);</p>
2183<h4 class="parameters">Parameters</h4>
2184<table class="list"><tbody>
2185<tr><th>name</th>
2186 <td class="description">Destination name</td></tr>
2187<tr><th>instance</th>
2188 <td class="description">Instance name or <code>NULL</code></td></tr>
2189<tr><th>num_dests</th>
2190 <td class="description">Number of destinations</td></tr>
2191<tr><th>dests</th>
2192 <td class="description">Destinations</td></tr>
2193</tbody></table>
798d6e29
MS
2194<h4 class="returnvalue">Return Value</h4>
2195 <p class="description">New number of destinations</p>
2196<h4 class="discussion">Discussion</h4>
2197 <p class="discussion">Removing a destination/instance does not delete the class or printer
2198queue, merely the lpoptions for that destination/instance. Use the
2199<a href="#cupsSetDests"><code>cupsSetDests</code></a> or <a href="#cupsSetDests2"><code>cupsSetDests2</code></a> functions to save the new
2200options for the user.
2201
2202</p>
2203<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="cupsRemoveOption">cupsRemoveOption</a></h3>
2204 <p class="description">Remove an option from an option array.</p>
2205<p class="code">
98d88c8d
MS
2206int cupsRemoveOption(const char *name, int num_options, <a href="#cups_option_t">cups_option_t</a> **options);</p>
2207<h4 class="parameters">Parameters</h4>
2208<table class="list"><tbody>
2209<tr><th>name</th>
2210 <td class="description">Option name</td></tr>
2211<tr><th>num_options</th>
2212 <td class="description">Current number of options</td></tr>
2213<tr><th>options</th>
2214 <td class="description">Options</td></tr>
2215</tbody></table>
798d6e29
MS
2216<h4 class="returnvalue">Return Value</h4>
2217 <p class="description">New number of options</p>
2218<h3 class="function"><a id="cupsServer">cupsServer</a></h3>
2219 <p class="description">Return the hostname/address of the current server.</p>
2220<p class="code">
98d88c8d 2221const char *cupsServer(void);</p>
798d6e29
MS
2222<h4 class="returnvalue">Return Value</h4>
2223 <p class="description">Server name</p>
2224<h4 class="discussion">Discussion</h4>
2225 <p class="discussion">The default server comes from the CUPS_SERVER environment variable, then the
2226~/.cups/client.conf file, and finally the /etc/cups/client.conf file. If not
2227set, the default is the local system - either &quot;localhost&quot; or a domain socket
2228path.<br>
2229<br>
2230The returned value can be a fully-qualified hostname, a numeric IPv4 or IPv6
2231address, or a domain socket pathname.<br>
2232<br>
2233Note: The current server is tracked separately for each thread in a program.
2234Multi-threaded programs that override the server via the
2235<a href="#cupsSetServer"><code>cupsSetServer</code></a> function need to do so in each thread for the same
2236server to be used.</p>
98d88c8d
MS
2237<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="cupsSetClientCertCB">cupsSetClientCertCB</a></h3>
2238 <p class="description">Set the client certificate callback.</p>
798d6e29 2239<p class="code">
98d88c8d 2240void cupsSetClientCertCB(<a href="#cups_client_cert_cb_t">cups_client_cert_cb_t</a> cb, void *user_data);</p>
798d6e29 2241<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2242<table class="list"><tbody>
2243<tr><th>cb</th>
2244 <td class="description">Callback function</td></tr>
2245<tr><th>user_data</th>
2246 <td class="description">User data pointer</td></tr>
2247</tbody></table>
2248<h4 class="discussion">Discussion</h4>
798d6e29
MS
2249 <p class="discussion">Pass <code>NULL</code> to restore the default callback.<br>
2250<br>
2251Note: The current certificate callback is tracked separately for each thread
2252in a program. Multi-threaded programs that override the callback need to do
2253so in each thread for the same callback to be used.
2254
2255</p>
2256<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="cupsSetCredentials">cupsSetCredentials</a></h3>
2257 <p class="description">Set the default credentials to be used for SSL/TLS
2258connections.</p>
2259<p class="code">
98d88c8d 2260int cupsSetCredentials(cups_array_t *credentials);</p>
798d6e29 2261<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2262<table class="list"><tbody>
2263<tr><th>credentials</th>
2264 <td class="description">Array of credentials</td></tr>
2265</tbody></table>
798d6e29
MS
2266<h4 class="returnvalue">Return Value</h4>
2267 <p class="description">Status of call (0 = success)</p>
2268<h4 class="discussion">Discussion</h4>
2269 <p class="discussion">Note: The default credentials are tracked separately for each thread in a
2270program. Multi-threaded programs that override the setting need to do so in
2271each thread for the same setting to be used.
2272
2273</p>
98d88c8d 2274<h3 class="function"><span class="info">&#160;CUPS 1.3/macOS 10.5&#160;</span><a id="cupsSetDefaultDest">cupsSetDefaultDest</a></h3>
53af7f21 2275 <p class="description">Set the default destination.</p>
98d88c8d
MS
2276<p class="code">
2277void cupsSetDefaultDest(const char *name, const char *instance, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> *dests);</p>
2278<h4 class="parameters">Parameters</h4>
2279<table class="list"><tbody>
2280<tr><th>name</th>
2281 <td class="description">Destination name</td></tr>
2282<tr><th>instance</th>
2283 <td class="description">Instance name or <code>NULL</code></td></tr>
2284<tr><th>num_dests</th>
2285 <td class="description">Number of destinations</td></tr>
2286<tr><th>dests</th>
2287 <td class="description">Destinations</td></tr>
2288</tbody></table>
798d6e29
MS
2289<h3 class="function"><span class="info">&#160;CUPS 1.1.21/macOS 10.4&#160;</span><a id="cupsSetDests2">cupsSetDests2</a></h3>
2290 <p class="description">Save the list of destinations for the specified server.</p>
2291<p class="code">
98d88c8d
MS
2292int cupsSetDests2(<a href="#http_t">http_t</a> *http, int num_dests, <a href="#cups_dest_t">cups_dest_t</a> *dests);</p>
2293<h4 class="parameters">Parameters</h4>
2294<table class="list"><tbody>
2295<tr><th>http</th>
2296 <td class="description">Connection to server or <code>CUPS_HTTP_DEFAULT</code></td></tr>
2297<tr><th>num_dests</th>
2298 <td class="description">Number of destinations</td></tr>
2299<tr><th>dests</th>
2300 <td class="description">Destinations</td></tr>
2301</tbody></table>
798d6e29
MS
2302<h4 class="returnvalue">Return Value</h4>
2303 <p class="description">0 on success, -1 on error</p>
2304<h4 class="discussion">Discussion</h4>
2305 <p class="discussion">This function saves the destinations to /etc/cups/lpoptions when run
2306as root and ~/.cups/lpoptions when run as a normal user.
2307
2308</p>
2309<h3 class="function"><a id="cupsSetEncryption">cupsSetEncryption</a></h3>
98d88c8d 2310 <p class="description">Set the encryption preference.</p>
798d6e29 2311<p class="code">
98d88c8d 2312void cupsSetEncryption(<a href="#http_encryption_t">http_encryption_t</a> e);</p>
798d6e29 2313<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2314<table class="list"><tbody>
2315<tr><th>e</th>
2316 <td class="description">New encryption preference</td></tr>
2317</tbody></table>
2318<h4 class="discussion">Discussion</h4>
798d6e29
MS
2319 <p class="discussion">The default encryption setting comes from the CUPS_ENCRYPTION
2320environment variable, then the ~/.cups/client.conf file, and finally the
2321/etc/cups/client.conf file. If not set, the default is
2322<code>HTTP_ENCRYPTION_IF_REQUESTED</code>.<br>
2323<br>
2324Note: The current encryption setting is tracked separately for each thread
2325in a program. Multi-threaded programs that override the setting need to do
2326so in each thread for the same setting to be used.</p>
98d88c8d
MS
2327<h3 class="function"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span><a id="cupsSetPasswordCB2">cupsSetPasswordCB2</a></h3>
2328 <p class="description">Set the advanced password callback for CUPS.</p>
798d6e29 2329<p class="code">
98d88c8d 2330void cupsSetPasswordCB2(<a href="#cups_password_cb2_t">cups_password_cb2_t</a> cb, void *user_data);</p>
798d6e29 2331<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2332<table class="list"><tbody>
2333<tr><th>cb</th>
2334 <td class="description">Callback function</td></tr>
2335<tr><th>user_data</th>
2336 <td class="description">User data pointer</td></tr>
2337</tbody></table>
2338<h4 class="discussion">Discussion</h4>
798d6e29
MS
2339 <p class="discussion">Pass <code>NULL</code> to restore the default (console) password callback, which
2340reads the password from the console. Programs should call either this
2341function or <a href="#cupsSetPasswordCB2"><code>cupsSetPasswordCB2</code></a>, as only one callback can be registered
2342by a program per thread.<br>
2343<br>
2344Note: The current password callback is tracked separately for each thread
2345in a program. Multi-threaded programs that override the callback need to do
2346so in each thread for the same callback to be used.
2347
2348</p>
2349<h3 class="function"><a id="cupsSetServer">cupsSetServer</a></h3>
98d88c8d 2350 <p class="description">Set the default server name and port.</p>
798d6e29 2351<p class="code">
98d88c8d 2352void cupsSetServer(const char *server);</p>
798d6e29 2353<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2354<table class="list"><tbody>
2355<tr><th>server</th>
2356 <td class="description">Server name</td></tr>
2357</tbody></table>
2358<h4 class="discussion">Discussion</h4>
798d6e29
MS
2359 <p class="discussion">The &quot;server&quot; string can be a fully-qualified hostname, a numeric
2360IPv4 or IPv6 address, or a domain socket pathname. Hostnames and numeric IP
2361addresses can be optionally followed by a colon and port number to override
2362the default port 631, e.g. &quot;hostname:8631&quot;. Pass <code>NULL</code> to restore the
2363default server name and port.<br>
2364<br>
2365Note: The current server is tracked separately for each thread in a program.
2366Multi-threaded programs that override the server need to do so in each
2367thread for the same server to be used.</p>
98d88c8d
MS
2368<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="cupsSetServerCertCB">cupsSetServerCertCB</a></h3>
2369 <p class="description">Set the server certificate callback.</p>
798d6e29 2370<p class="code">
98d88c8d 2371void cupsSetServerCertCB(<a href="#cups_server_cert_cb_t">cups_server_cert_cb_t</a> cb, void *user_data);</p>
798d6e29 2372<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2373<table class="list"><tbody>
2374<tr><th>cb</th>
2375 <td class="description">Callback function</td></tr>
2376<tr><th>user_data</th>
2377 <td class="description">User data pointer</td></tr>
2378</tbody></table>
2379<h4 class="discussion">Discussion</h4>
798d6e29
MS
2380 <p class="discussion">Pass <code>NULL</code> to restore the default callback.<br>
2381<br>
2382Note: The current credentials callback is tracked separately for each thread
2383in a program. Multi-threaded programs that override the callback need to do
2384so in each thread for the same callback to be used.
2385
2386</p>
2387<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="cupsSetServerCredentials">cupsSetServerCredentials</a></h3>
2388 <p class="description">Set the default server credentials.</p>
2389<p class="code">
98d88c8d
MS
2390int cupsSetServerCredentials(const char *path, const char *common_name, int auto_create);</p>
2391<h4 class="parameters">Parameters</h4>
2392<table class="list"><tbody>
2393<tr><th>path</th>
2394 <td class="description">Keychain path or <code>NULL</code> for default</td></tr>
2395<tr><th>common_name</th>
2396 <td class="description">Default common name for server</td></tr>
2397<tr><th>auto_create</th>
2398 <td class="description">1 = automatically create self-signed certificates</td></tr>
2399</tbody></table>
798d6e29
MS
2400<h4 class="returnvalue">Return Value</h4>
2401 <p class="description">1 on success, 0 on failure</p>
2402<h4 class="discussion">Discussion</h4>
2403 <p class="discussion">Note: The server credentials are used by all threads in the running process.
2404This function is threadsafe.
2405
2406</p>
2407<h3 class="function"><a id="cupsSetUser">cupsSetUser</a></h3>
98d88c8d 2408 <p class="description">Set the default user name.</p>
798d6e29 2409<p class="code">
98d88c8d 2410void cupsSetUser(const char *user);</p>
798d6e29 2411<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2412<table class="list"><tbody>
2413<tr><th>user</th>
2414 <td class="description">User name</td></tr>
2415</tbody></table>
2416<h4 class="discussion">Discussion</h4>
798d6e29
MS
2417 <p class="discussion">Pass <code>NULL</code> to restore the default user name.<br>
2418<br>
2419Note: The current user name is tracked separately for each thread in a
2420program. Multi-threaded programs that override the user name need to do so
2421in each thread for the same user name to be used.</p>
98d88c8d
MS
2422<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsSetUserAgent">cupsSetUserAgent</a></h3>
2423 <p class="description">Set the default HTTP User-Agent string.</p>
798d6e29 2424<p class="code">
98d88c8d 2425void cupsSetUserAgent(const char *user_agent);</p>
798d6e29 2426<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2427<table class="list"><tbody>
2428<tr><th>user_agent</th>
2429 <td class="description">User-Agent string or <code>NULL</code></td></tr>
2430</tbody></table>
2431<h4 class="discussion">Discussion</h4>
798d6e29
MS
2432 <p class="discussion">Setting the string to NULL forces the default value containing the CUPS
2433version, IPP version, and operating system version and architecture.
2434
2435</p>
2436<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cupsStartDestDocument">cupsStartDestDocument</a></h3>
2437 <p class="description">Start a new document.</p>
2438<p class="code">
98d88c8d
MS
2439http_status_t cupsStartDestDocument(<a href="#http_t">http_t</a> *http, <a href="#cups_dest_t">cups_dest_t</a> *dest, <a href="#cups_dinfo_t">cups_dinfo_t</a> *info, int job_id, const char *docname, const char *format, int num_options, <a href="#cups_option_t">cups_option_t</a> *options, int last_document);</p>
2440<h4 class="parameters">Parameters</h4>
2441<table class="list"><tbody>
2442<tr><th>http</th>
2443 <td class="description">Connection to destination</td></tr>
2444<tr><th>dest</th>
2445 <td class="description">Destination</td></tr>
2446<tr><th>info</th>
2447 <td class="description">Destination information</td></tr>
2448<tr><th>job_id</th>
2449 <td class="description">Job ID</td></tr>
2450<tr><th>docname</th>
2451 <td class="description">Document name</td></tr>
2452<tr><th>format</th>
2453 <td class="description">Document format</td></tr>
2454<tr><th>num_options</th>
2455 <td class="description">Number of document options</td></tr>
2456<tr><th>options</th>
2457 <td class="description">Document options</td></tr>
2458<tr><th>last_document</th>
2459 <td class="description">1 if this is the last document</td></tr>
2460</tbody></table>
798d6e29
MS
2461<h4 class="returnvalue">Return Value</h4>
2462 <p class="description">Status of document creation</p>
2463<h4 class="discussion">Discussion</h4>
2464 <p class="discussion">&quot;job_id&quot; is the job ID returned by cupsCreateDestJob. &quot;docname&quot; is the name
2465of the document/file being printed, &quot;format&quot; is the MIME media type for the
2466document (see CUPS_FORMAT_xxx constants), and &quot;num_options&quot; and &quot;options&quot;
2467are the options do be applied to the document. &quot;last_document&quot; should be 1
2468if this is the last document to be submitted in the job. Returns
2469<code>HTTP_CONTINUE</code> on success.
2470
798d6e29
MS
2471</p>
2472<h3 class="function"><a id="cupsUser">cupsUser</a></h3>
2473 <p class="description">Return the current user's name.</p>
2474<p class="code">
98d88c8d 2475const char *cupsUser(void);</p>
798d6e29
MS
2476<h4 class="returnvalue">Return Value</h4>
2477 <p class="description">User name</p>
2478<h4 class="discussion">Discussion</h4>
2479 <p class="discussion">Note: The current user name is tracked separately for each thread in a
2480program. Multi-threaded programs that override the user name with the
2481<a href="#cupsSetUser"><code>cupsSetUser</code></a> function need to do so in each thread for the same user
2482name to be used.</p>
2483<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="cupsUserAgent">cupsUserAgent</a></h3>
2484 <p class="description">Return the default HTTP User-Agent string.</p>
2485<p class="code">
98d88c8d 2486const char *cupsUserAgent(void);</p>
798d6e29
MS
2487<h4 class="returnvalue">Return Value</h4>
2488 <p class="description">User-Agent string</p>
2489<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAcceptConnection">httpAcceptConnection</a></h3>
2490 <p class="description">Accept a new HTTP client connection from the
2491specified listening socket.</p>
2492<p class="code">
98d88c8d 2493<a href="#http_t">http_t</a> *httpAcceptConnection(int fd, int blocking);</p>
798d6e29 2494<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2495<table class="list"><tbody>
2496<tr><th>fd</th>
2497 <td class="description">Listen socket file descriptor</td></tr>
2498<tr><th>blocking</th>
2499 <td class="description">1 if the connection should be
2500blocking, 0 otherwise</td></tr>
2501</tbody></table>
798d6e29
MS
2502<h4 class="returnvalue">Return Value</h4>
2503 <p class="description">HTTP connection or <code>NULL</code></p>
2504<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="httpAddCredential">httpAddCredential</a></h3>
2505 <p class="description">Allocates and adds a single credential to an array.</p>
2506<p class="code">
98d88c8d
MS
2507int httpAddCredential(cups_array_t *credentials, const void *data, size_t datalen);</p>
2508<h4 class="parameters">Parameters</h4>
2509<table class="list"><tbody>
2510<tr><th>credentials</th>
2511 <td class="description">Credentials array</td></tr>
2512<tr><th>data</th>
2513 <td class="description">PEM-encoded X.509 data</td></tr>
2514<tr><th>datalen</th>
2515 <td class="description">Length of data</td></tr>
2516</tbody></table>
798d6e29
MS
2517<h4 class="returnvalue">Return Value</h4>
2518 <p class="description">0 on success, -1 on error</p>
2519<h4 class="discussion">Discussion</h4>
2520 <p class="discussion">Use <code>cupsArrayNew(NULL, NULL)</code> to create a credentials array.
2521
2522</p>
2523<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrAny">httpAddrAny</a></h3>
2524 <p class="description">Check for the &quot;any&quot; address.</p>
2525<p class="code">
98d88c8d 2526int httpAddrAny(const <a href="#http_addr_t">http_addr_t</a> *addr);</p>
798d6e29 2527<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2528<table class="list"><tbody>
2529<tr><th>addr</th>
2530 <td class="description">Address to check</td></tr>
2531</tbody></table>
798d6e29
MS
2532<h4 class="returnvalue">Return Value</h4>
2533 <p class="description">1 if &quot;any&quot;, 0 otherwise</p>
2534<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpAddrClose">httpAddrClose</a></h3>
2535 <p class="description">Close a socket created by <a href="#httpAddrConnect"><code>httpAddrConnect</code></a> or
2536<a href="#httpAddrListen"><code>httpAddrListen</code></a>.</p>
2537<p class="code">
98d88c8d 2538int httpAddrClose(<a href="#http_addr_t">http_addr_t</a> *addr, int fd);</p>
798d6e29 2539<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2540<table class="list"><tbody>
2541<tr><th>addr</th>
2542 <td class="description">Listen address or <code>NULL</code></td></tr>
2543<tr><th>fd</th>
2544 <td class="description">Socket file descriptor</td></tr>
2545</tbody></table>
798d6e29
MS
2546<h4 class="returnvalue">Return Value</h4>
2547 <p class="description">0 on success, -1 on failure</p>
2548<h4 class="discussion">Discussion</h4>
98d88c8d
MS
2549 <p class="discussion">Pass <code>NULL</code> for sockets created with <a href="#httpAddrConnect2"><code>httpAddrConnect2</code></a> and the
2550listen address for sockets created with <a href="#httpAddrListen"><code>httpAddrListen</code></a>. This function
2551ensures that domain sockets are removed when closed.
798d6e29
MS
2552
2553</p>
798d6e29
MS
2554<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAddrConnect2">httpAddrConnect2</a></h3>
2555 <p class="description">Connect to any of the addresses in the list with a
2556timeout and optional cancel.</p>
2557<p class="code">
98d88c8d
MS
2558<a href="#http_addrlist_t">http_addrlist_t</a> *httpAddrConnect2(<a href="#http_addrlist_t">http_addrlist_t</a> *addrlist, int *sock, int msec, int *cancel);</p>
2559<h4 class="parameters">Parameters</h4>
2560<table class="list"><tbody>
2561<tr><th>addrlist</th>
2562 <td class="description">List of potential addresses</td></tr>
2563<tr><th>sock</th>
2564 <td class="description">Socket</td></tr>
2565<tr><th>msec</th>
2566 <td class="description">Timeout in milliseconds</td></tr>
2567<tr><th>cancel</th>
2568 <td class="description">Pointer to &quot;cancel&quot; variable</td></tr>
2569</tbody></table>
798d6e29
MS
2570<h4 class="returnvalue">Return Value</h4>
2571 <p class="description">Connected address or NULL on failure</p>
2572<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAddrCopyList">httpAddrCopyList</a></h3>
2573 <p class="description">Copy an address list.</p>
2574<p class="code">
98d88c8d 2575<a href="#http_addrlist_t">http_addrlist_t</a> *httpAddrCopyList(<a href="#http_addrlist_t">http_addrlist_t</a> *src);</p>
798d6e29 2576<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2577<table class="list"><tbody>
2578<tr><th>src</th>
2579 <td class="description">Source address list</td></tr>
2580</tbody></table>
798d6e29
MS
2581<h4 class="returnvalue">Return Value</h4>
2582 <p class="description">New address list or <code>NULL</code> on error</p>
2583<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrEqual">httpAddrEqual</a></h3>
2584 <p class="description">Compare two addresses.</p>
2585<p class="code">
98d88c8d 2586int httpAddrEqual(const <a href="#http_addr_t">http_addr_t</a> *addr1, const <a href="#http_addr_t">http_addr_t</a> *addr2);</p>
798d6e29 2587<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2588<table class="list"><tbody>
2589<tr><th>addr1</th>
2590 <td class="description">First address</td></tr>
2591<tr><th>addr2</th>
2592 <td class="description">Second address</td></tr>
2593</tbody></table>
798d6e29
MS
2594<h4 class="returnvalue">Return Value</h4>
2595 <p class="description">1 if equal, 0 if not</p>
2596<h3 class="function"><a id="httpAddrFamily">httpAddrFamily</a></h3>
2597 <p class="description">Get the address family of an address.</p>
2598<p class="code">
98d88c8d 2599int httpAddrFamily(<a href="#http_addr_t">http_addr_t</a> *addr);</p>
798d6e29 2600<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2601<table class="list"><tbody>
2602<tr><th>addr</th>
2603 <td class="description">Address</td></tr>
2604</tbody></table>
798d6e29
MS
2605<h4 class="returnvalue">Return Value</h4>
2606 <p class="description">Address family</p>
98d88c8d
MS
2607<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrFreeList">httpAddrFreeList</a></h3>
2608 <p class="description">Free an address list.</p>
798d6e29 2609<p class="code">
98d88c8d 2610void httpAddrFreeList(<a href="#http_addrlist_t">http_addrlist_t</a> *addrlist);</p>
798d6e29 2611<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2612<table class="list"><tbody>
2613<tr><th>addrlist</th>
2614 <td class="description">Address list to free</td></tr>
2615</tbody></table>
798d6e29
MS
2616<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrGetList">httpAddrGetList</a></h3>
2617 <p class="description">Get a list of addresses for a hostname.</p>
2618<p class="code">
98d88c8d
MS
2619<a href="#http_addrlist_t">http_addrlist_t</a> *httpAddrGetList(const char *hostname, int family, const char *service);</p>
2620<h4 class="parameters">Parameters</h4>
2621<table class="list"><tbody>
2622<tr><th>hostname</th>
2623 <td class="description">Hostname, IP address, or NULL for passive listen address</td></tr>
2624<tr><th>family</th>
2625 <td class="description">Address family or AF_UNSPEC</td></tr>
2626<tr><th>service</th>
2627 <td class="description">Service name or port number</td></tr>
2628</tbody></table>
798d6e29
MS
2629<h4 class="returnvalue">Return Value</h4>
2630 <p class="description">List of addresses or NULL</p>
2631<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrLength">httpAddrLength</a></h3>
2632 <p class="description">Return the length of the address in bytes.</p>
2633<p class="code">
98d88c8d 2634int httpAddrLength(const <a href="#http_addr_t">http_addr_t</a> *addr);</p>
798d6e29 2635<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2636<table class="list"><tbody>
2637<tr><th>addr</th>
2638 <td class="description">Address</td></tr>
2639</tbody></table>
798d6e29
MS
2640<h4 class="returnvalue">Return Value</h4>
2641 <p class="description">Length in bytes</p>
2642<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAddrListen">httpAddrListen</a></h3>
2643 <p class="description">Create a listening socket bound to the specified
2644address and port.</p>
2645<p class="code">
98d88c8d 2646int httpAddrListen(<a href="#http_addr_t">http_addr_t</a> *addr, int port);</p>
798d6e29 2647<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2648<table class="list"><tbody>
2649<tr><th>addr</th>
2650 <td class="description">Address to bind to</td></tr>
2651<tr><th>port</th>
2652 <td class="description">Port number to bind to</td></tr>
2653</tbody></table>
798d6e29
MS
2654<h4 class="returnvalue">Return Value</h4>
2655 <p class="description">Socket or -1 on error</p>
2656<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrLocalhost">httpAddrLocalhost</a></h3>
2657 <p class="description">Check for the local loopback address.</p>
2658<p class="code">
98d88c8d 2659int httpAddrLocalhost(const <a href="#http_addr_t">http_addr_t</a> *addr);</p>
798d6e29 2660<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2661<table class="list"><tbody>
2662<tr><th>addr</th>
2663 <td class="description">Address to check</td></tr>
2664</tbody></table>
798d6e29
MS
2665<h4 class="returnvalue">Return Value</h4>
2666 <p class="description">1 if local host, 0 otherwise</p>
2667<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrLookup">httpAddrLookup</a></h3>
2668 <p class="description">Lookup the hostname associated with the address.</p>
2669<p class="code">
98d88c8d
MS
2670char *httpAddrLookup(const <a href="#http_addr_t">http_addr_t</a> *addr, char *name, int namelen);</p>
2671<h4 class="parameters">Parameters</h4>
2672<table class="list"><tbody>
2673<tr><th>addr</th>
2674 <td class="description">Address to lookup</td></tr>
2675<tr><th>name</th>
2676 <td class="description">Host name buffer</td></tr>
2677<tr><th>namelen</th>
2678 <td class="description">Size of name buffer</td></tr>
2679</tbody></table>
798d6e29
MS
2680<h4 class="returnvalue">Return Value</h4>
2681 <p class="description">Host name</p>
2682<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAddrPort">httpAddrPort</a></h3>
2683 <p class="description">Get the port number associated with an address.</p>
2684<p class="code">
98d88c8d 2685int httpAddrPort(<a href="#http_addr_t">http_addr_t</a> *addr);</p>
798d6e29 2686<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2687<table class="list"><tbody>
2688<tr><th>addr</th>
2689 <td class="description">Address</td></tr>
2690</tbody></table>
798d6e29
MS
2691<h4 class="returnvalue">Return Value</h4>
2692 <p class="description">Port number</p>
2693<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAddrString">httpAddrString</a></h3>
2694 <p class="description">Convert an address to a numeric string.</p>
2695<p class="code">
98d88c8d
MS
2696char *httpAddrString(const <a href="#http_addr_t">http_addr_t</a> *addr, char *s, int slen);</p>
2697<h4 class="parameters">Parameters</h4>
2698<table class="list"><tbody>
2699<tr><th>addr</th>
2700 <td class="description">Address to convert</td></tr>
2701<tr><th>s</th>
2702 <td class="description">String buffer</td></tr>
2703<tr><th>slen</th>
2704 <td class="description">Length of string</td></tr>
2705</tbody></table>
798d6e29
MS
2706<h4 class="returnvalue">Return Value</h4>
2707 <p class="description">Numeric address string</p>
2708<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAssembleURI">httpAssembleURI</a></h3>
2709 <p class="description">Assemble a uniform resource identifier from its
2710components.</p>
2711<p class="code">
98d88c8d
MS
2712<a href="#http_uri_status_t">http_uri_status_t</a> httpAssembleURI(<a href="#http_uri_coding_t">http_uri_coding_t</a> encoding, char *uri, int urilen, const char *scheme, const char *username, const char *host, int port, const char *resource);</p>
2713<h4 class="parameters">Parameters</h4>
2714<table class="list"><tbody>
2715<tr><th>encoding</th>
2716 <td class="description">Encoding flags</td></tr>
2717<tr><th>uri</th>
2718 <td class="description">URI buffer</td></tr>
2719<tr><th>urilen</th>
2720 <td class="description">Size of URI buffer</td></tr>
2721<tr><th>scheme</th>
2722 <td class="description">Scheme name</td></tr>
2723<tr><th>username</th>
2724 <td class="description">Username</td></tr>
2725<tr><th>host</th>
2726 <td class="description">Hostname or address</td></tr>
2727<tr><th>port</th>
2728 <td class="description">Port number</td></tr>
2729<tr><th>resource</th>
2730 <td class="description">Resource</td></tr>
2731</tbody></table>
798d6e29
MS
2732<h4 class="returnvalue">Return Value</h4>
2733 <p class="description">URI status</p>
2734<h4 class="discussion">Discussion</h4>
2735 <p class="discussion">This function escapes reserved characters in the URI depending on the
2736value of the &quot;encoding&quot; argument. You should use this function in
2737place of traditional string functions whenever you need to create a
2738URI string.
2739
2740</p>
2741<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpAssembleURIf">httpAssembleURIf</a></h3>
2742 <p class="description">Assemble a uniform resource identifier from its
2743components with a formatted resource.</p>
2744<p class="code">
98d88c8d
MS
2745<a href="#http_uri_status_t">http_uri_status_t</a> httpAssembleURIf(<a href="#http_uri_coding_t">http_uri_coding_t</a> encoding, char *uri, int urilen, const char *scheme, const char *username, const char *host, int port, const char *resourcef, ...);</p>
2746<h4 class="parameters">Parameters</h4>
2747<table class="list"><tbody>
2748<tr><th>encoding</th>
2749 <td class="description">Encoding flags</td></tr>
2750<tr><th>uri</th>
2751 <td class="description">URI buffer</td></tr>
2752<tr><th>urilen</th>
2753 <td class="description">Size of URI buffer</td></tr>
2754<tr><th>scheme</th>
2755 <td class="description">Scheme name</td></tr>
2756<tr><th>username</th>
2757 <td class="description">Username</td></tr>
2758<tr><th>host</th>
2759 <td class="description">Hostname or address</td></tr>
2760<tr><th>port</th>
2761 <td class="description">Port number</td></tr>
2762<tr><th>resourcef</th>
2763 <td class="description">Printf-style resource</td></tr>
2764<tr><th>...</th>
2765 <td class="description">Additional arguments as needed</td></tr>
2766</tbody></table>
798d6e29
MS
2767<h4 class="returnvalue">Return Value</h4>
2768 <p class="description">URI status</p>
2769<h4 class="discussion">Discussion</h4>
2770 <p class="discussion">This function creates a formatted version of the resource string
2771argument &quot;resourcef&quot; and escapes reserved characters in the URI
2772depending on the value of the &quot;encoding&quot; argument. You should use
2773this function in place of traditional string functions whenever
2774you need to create a URI string.
2775
2776</p>
2777<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpAssembleUUID">httpAssembleUUID</a></h3>
2778 <p class="description">Assemble a name-based UUID URN conforming to RFC 4122.</p>
2779<p class="code">
98d88c8d
MS
2780char *httpAssembleUUID(const char *server, int port, const char *name, int number, char *buffer, size_t bufsize);</p>
2781<h4 class="parameters">Parameters</h4>
2782<table class="list"><tbody>
2783<tr><th>server</th>
2784 <td class="description">Server name</td></tr>
2785<tr><th>port</th>
2786 <td class="description">Port number</td></tr>
2787<tr><th>name</th>
2788 <td class="description">Object name or NULL</td></tr>
2789<tr><th>number</th>
2790 <td class="description">Object number or 0</td></tr>
2791<tr><th>buffer</th>
2792 <td class="description">String buffer</td></tr>
2793<tr><th>bufsize</th>
2794 <td class="description">Size of buffer</td></tr>
2795</tbody></table>
798d6e29
MS
2796<h4 class="returnvalue">Return Value</h4>
2797 <p class="description">UUID string</p>
2798<h4 class="discussion">Discussion</h4>
2799 <p class="discussion">This function creates a unique 128-bit identifying number using the server
2800name, port number, random data, and optionally an object name and/or object
2801number. The result is formatted as a UUID URN as defined in RFC 4122.<br>
2802<br>
2803The buffer needs to be at least 46 bytes in size.
2804
2805</p>
2806<h3 class="function"><a id="httpBlocking">httpBlocking</a></h3>
98d88c8d 2807 <p class="description">Set blocking/non-blocking behavior on a connection.</p>
798d6e29 2808<p class="code">
98d88c8d 2809void httpBlocking(<a href="#http_t">http_t</a> *http, int b);</p>
798d6e29 2810<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2811<table class="list"><tbody>
2812<tr><th>http</th>
2813 <td class="description">HTTP connection</td></tr>
2814<tr><th>b</th>
2815 <td class="description">1 = blocking, 0 = non-blocking</td></tr>
2816</tbody></table>
798d6e29
MS
2817<h3 class="function"><a id="httpCheck">httpCheck</a></h3>
2818 <p class="description">Check to see if there is a pending response from the server.</p>
2819<p class="code">
98d88c8d 2820int httpCheck(<a href="#http_t">http_t</a> *http);</p>
798d6e29 2821<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2822<table class="list"><tbody>
2823<tr><th>http</th>
2824 <td class="description">HTTP connection</td></tr>
2825</tbody></table>
798d6e29
MS
2826<h4 class="returnvalue">Return Value</h4>
2827 <p class="description">0 = no data, 1 = data available</p>
98d88c8d
MS
2828<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="httpClearCookie">httpClearCookie</a></h3>
2829 <p class="description">Clear the cookie value(s).</p>
798d6e29 2830<p class="code">
98d88c8d 2831void httpClearCookie(<a href="#http_t">http_t</a> *http);</p>
798d6e29 2832<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2833<table class="list"><tbody>
2834<tr><th>http</th>
2835 <td class="description">HTTP connection</td></tr>
2836</tbody></table>
798d6e29 2837<h3 class="function"><a id="httpClearFields">httpClearFields</a></h3>
98d88c8d 2838 <p class="description">Clear HTTP request fields.</p>
798d6e29 2839<p class="code">
98d88c8d 2840void httpClearFields(<a href="#http_t">http_t</a> *http);</p>
798d6e29 2841<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2842<table class="list"><tbody>
2843<tr><th>http</th>
2844 <td class="description">HTTP connection</td></tr>
2845</tbody></table>
798d6e29 2846<h3 class="function"><a id="httpClose">httpClose</a></h3>
98d88c8d 2847 <p class="description">Close an HTTP connection.</p>
798d6e29 2848<p class="code">
98d88c8d 2849void httpClose(<a href="#http_t">http_t</a> *http);</p>
798d6e29 2850<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2851<table class="list"><tbody>
2852<tr><th>http</th>
2853 <td class="description">HTTP connection</td></tr>
2854</tbody></table>
798d6e29
MS
2855<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpCompareCredentials">httpCompareCredentials</a></h3>
2856 <p class="description">Compare two sets of X.509 credentials.</p>
2857<p class="code">
98d88c8d 2858int httpCompareCredentials(cups_array_t *cred1, cups_array_t *cred2);</p>
798d6e29 2859<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2860<table class="list"><tbody>
2861<tr><th>cred1</th>
2862 <td class="description">First set of X.509 credentials</td></tr>
2863<tr><th>cred2</th>
2864 <td class="description">Second set of X.509 credentials</td></tr>
2865</tbody></table>
53af7f21
MS
2866<h4 class="returnvalue">Return Value</h4>
2867 <p class="description">1 if they match, 0 if they do not</p>
798d6e29
MS
2868<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpConnect2">httpConnect2</a></h3>
2869 <p class="description">Connect to a HTTP server.</p>
2870<p class="code">
98d88c8d
MS
2871<a href="#http_t">http_t</a> *httpConnect2(const char *host, int port, <a href="#http_addrlist_t">http_addrlist_t</a> *addrlist, int family, <a href="#http_encryption_t">http_encryption_t</a> encryption, int blocking, int msec, int *cancel);</p>
2872<h4 class="parameters">Parameters</h4>
2873<table class="list"><tbody>
2874<tr><th>host</th>
2875 <td class="description">Host to connect to</td></tr>
2876<tr><th>port</th>
2877 <td class="description">Port number</td></tr>
2878<tr><th>addrlist</th>
65bebeac 2879 <td class="description">List of addresses or <code>NULL</code> to lookup</td></tr>
98d88c8d
MS
2880<tr><th>family</th>
2881 <td class="description">Address family to use or <code>AF_UNSPEC</code> for any</td></tr>
2882<tr><th>encryption</th>
2883 <td class="description">Type of encryption to use</td></tr>
2884<tr><th>blocking</th>
2885 <td class="description">1 for blocking connection, 0 for non-blocking</td></tr>
2886<tr><th>msec</th>
2887 <td class="description">Connection timeout in milliseconds, 0 means don't connect</td></tr>
2888<tr><th>cancel</th>
2889 <td class="description">Pointer to &quot;cancel&quot; variable</td></tr>
2890</tbody></table>
798d6e29
MS
2891<h4 class="returnvalue">Return Value</h4>
2892 <p class="description">New HTTP connection</p>
798d6e29
MS
2893<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="httpCopyCredentials">httpCopyCredentials</a></h3>
2894 <p class="description">Copy the credentials associated with the peer in
2895an encrypted connection.</p>
2896<p class="code">
98d88c8d 2897int httpCopyCredentials(<a href="#http_t">http_t</a> *http, cups_array_t **credentials);</p>
798d6e29 2898<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2899<table class="list"><tbody>
2900<tr><th>http</th>
2901 <td class="description">Connection to server</td></tr>
2902<tr><th>credentials</th>
2903 <td class="description">Array of credentials</td></tr>
2904</tbody></table>
798d6e29
MS
2905<h4 class="returnvalue">Return Value</h4>
2906 <p class="description">Status of call (0 = success)</p>
2907<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="httpCredentialsAreValidForName">httpCredentialsAreValidForName</a></h3>
2908 <p class="description">Return whether the credentials are valid for the given name.</p>
2909<p class="code">
98d88c8d 2910int httpCredentialsAreValidForName(cups_array_t *credentials, const char *common_name);</p>
798d6e29 2911<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2912<table class="list"><tbody>
2913<tr><th>credentials</th>
2914 <td class="description">Credentials</td></tr>
2915<tr><th>common_name</th>
2916 <td class="description">Name to check</td></tr>
2917</tbody></table>
798d6e29
MS
2918<h4 class="returnvalue">Return Value</h4>
2919 <p class="description">1 if valid, 0 otherwise</p>
2920<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="httpCredentialsGetExpiration">httpCredentialsGetExpiration</a></h3>
2921 <p class="description">Return the expiration date of the credentials.</p>
2922<p class="code">
98d88c8d 2923time_t httpCredentialsGetExpiration(cups_array_t *credentials);</p>
798d6e29 2924<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2925<table class="list"><tbody>
2926<tr><th>credentials</th>
2927 <td class="description">Credentials</td></tr>
2928</tbody></table>
798d6e29
MS
2929<h4 class="returnvalue">Return Value</h4>
2930 <p class="description">Expiration date of credentials</p>
2931<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="httpCredentialsGetTrust">httpCredentialsGetTrust</a></h3>
2932 <p class="description">Return the trust of credentials.</p>
2933<p class="code">
98d88c8d 2934<a href="#http_trust_t">http_trust_t</a> httpCredentialsGetTrust(cups_array_t *credentials, const char *common_name);</p>
798d6e29 2935<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2936<table class="list"><tbody>
2937<tr><th>credentials</th>
2938 <td class="description">Credentials</td></tr>
2939<tr><th>common_name</th>
2940 <td class="description">Common name for trust lookup</td></tr>
2941</tbody></table>
798d6e29
MS
2942<h4 class="returnvalue">Return Value</h4>
2943 <p class="description">Level of trust</p>
2944<h3 class="function"><span class="info">&#160;CUPS 2.0/macOS 10.10&#160;</span><a id="httpCredentialsString">httpCredentialsString</a></h3>
2945 <p class="description">Return a string representing the credentials.</p>
2946<p class="code">
98d88c8d
MS
2947size_t httpCredentialsString(cups_array_t *credentials, char *buffer, size_t bufsize);</p>
2948<h4 class="parameters">Parameters</h4>
2949<table class="list"><tbody>
2950<tr><th>credentials</th>
2951 <td class="description">Credentials</td></tr>
2952<tr><th>buffer</th>
2953 <td class="description">Buffer or <code>NULL</code></td></tr>
2954<tr><th>bufsize</th>
2955 <td class="description">Size of buffer</td></tr>
2956</tbody></table>
798d6e29
MS
2957<h4 class="returnvalue">Return Value</h4>
2958 <p class="description">Total size of credentials string</p>
798d6e29
MS
2959<h3 class="function"><span class="info">&#160;CUPS 1.1.21/macOS 10.4&#160;</span><a id="httpDecode64_2">httpDecode64_2</a></h3>
2960 <p class="description">Base64-decode a string.</p>
2961<p class="code">
98d88c8d
MS
2962char *httpDecode64_2(char *out, int *outlen, const char *in);</p>
2963<h4 class="parameters">Parameters</h4>
2964<table class="list"><tbody>
2965<tr><th>out</th>
2966 <td class="description">String to write to</td></tr>
2967<tr><th>outlen</th>
2968 <td class="description">Size of output string</td></tr>
2969<tr><th>in</th>
2970 <td class="description">String to read from</td></tr>
2971</tbody></table>
798d6e29
MS
2972<h4 class="returnvalue">Return Value</h4>
2973 <p class="description">Decoded string</p>
98d88c8d
MS
2974<h4 class="discussion">Discussion</h4>
2975 <p class="discussion">The caller must initialize &quot;outlen&quot; to the maximum size of the decoded
65bebeac 2976string before calling <code>httpDecode64_2</code>. On return &quot;outlen&quot; contains the
98d88c8d
MS
2977decoded length of the string.
2978
2979</p>
798d6e29
MS
2980<h3 class="function"><a id="httpDelete">httpDelete</a></h3>
2981 <p class="description">Send a DELETE request to the server.</p>
2982<p class="code">
98d88c8d 2983int httpDelete(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 2984<h4 class="parameters">Parameters</h4>
98d88c8d
MS
2985<table class="list"><tbody>
2986<tr><th>http</th>
2987 <td class="description">HTTP connection</td></tr>
2988<tr><th>uri</th>
2989 <td class="description">URI to delete</td></tr>
2990</tbody></table>
798d6e29
MS
2991<h4 class="returnvalue">Return Value</h4>
2992 <p class="description">Status of call (0 = success)</p>
798d6e29
MS
2993<h3 class="function"><span class="info">&#160;CUPS 1.1.21/macOS 10.4&#160;</span><a id="httpEncode64_2">httpEncode64_2</a></h3>
2994 <p class="description">Base64-encode a string.</p>
2995<p class="code">
98d88c8d
MS
2996char *httpEncode64_2(char *out, int outlen, const char *in, int inlen);</p>
2997<h4 class="parameters">Parameters</h4>
2998<table class="list"><tbody>
2999<tr><th>out</th>
3000 <td class="description">String to write to</td></tr>
3001<tr><th>outlen</th>
3002 <td class="description">Maximum size of output string</td></tr>
3003<tr><th>in</th>
3004 <td class="description">String to read from</td></tr>
3005<tr><th>inlen</th>
3006 <td class="description">Size of input string</td></tr>
3007</tbody></table>
798d6e29
MS
3008<h4 class="returnvalue">Return Value</h4>
3009 <p class="description">Encoded string</p>
3010<h3 class="function"><a id="httpEncryption">httpEncryption</a></h3>
3011 <p class="description">Set the required encryption on the link.</p>
3012<p class="code">
98d88c8d 3013int httpEncryption(<a href="#http_t">http_t</a> *http, <a href="#http_encryption_t">http_encryption_t</a> e);</p>
798d6e29 3014<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3015<table class="list"><tbody>
3016<tr><th>http</th>
3017 <td class="description">HTTP connection</td></tr>
3018<tr><th>e</th>
3019 <td class="description">New encryption preference</td></tr>
3020</tbody></table>
798d6e29
MS
3021<h4 class="returnvalue">Return Value</h4>
3022 <p class="description">-1 on error, 0 on success</p>
3023<h3 class="function"><a id="httpError">httpError</a></h3>
3024 <p class="description">Get the last error on a connection.</p>
3025<p class="code">
98d88c8d 3026int httpError(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3027<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3028<table class="list"><tbody>
3029<tr><th>http</th>
3030 <td class="description">HTTP connection</td></tr>
3031</tbody></table>
798d6e29
MS
3032<h4 class="returnvalue">Return Value</h4>
3033 <p class="description">Error code (errno) value</p>
3034<h3 class="function"><a id="httpFieldValue">httpFieldValue</a></h3>
3035 <p class="description">Return the HTTP field enumeration value for a field
3036name.</p>
3037<p class="code">
98d88c8d 3038<a href="#http_field_t">http_field_t</a> httpFieldValue(const char *name);</p>
798d6e29 3039<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3040<table class="list"><tbody>
3041<tr><th>name</th>
3042 <td class="description">String name</td></tr>
3043</tbody></table>
798d6e29
MS
3044<h4 class="returnvalue">Return Value</h4>
3045 <p class="description">Field index</p>
3046<h3 class="function"><a id="httpFlush">httpFlush</a></h3>
65bebeac 3047 <p class="description">Flush data read from a HTTP connection.</p>
798d6e29 3048<p class="code">
98d88c8d 3049void httpFlush(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3050<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3051<table class="list"><tbody>
3052<tr><th>http</th>
3053 <td class="description">HTTP connection</td></tr>
3054</tbody></table>
798d6e29 3055<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpFlushWrite">httpFlushWrite</a></h3>
65bebeac 3056 <p class="description">Flush data written to a HTTP connection.</p>
798d6e29 3057<p class="code">
98d88c8d 3058int httpFlushWrite(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3059<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3060<table class="list"><tbody>
3061<tr><th>http</th>
3062 <td class="description">HTTP connection</td></tr>
3063</tbody></table>
798d6e29
MS
3064<h4 class="returnvalue">Return Value</h4>
3065 <p class="description">Bytes written or -1 on error</p>
3066<h3 class="function"><a id="httpFreeCredentials">httpFreeCredentials</a></h3>
98d88c8d 3067 <p class="description">Free an array of credentials.</p>
798d6e29 3068<p class="code">
98d88c8d 3069void httpFreeCredentials(cups_array_t *credentials);</p>
798d6e29 3070<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3071<table class="list"><tbody>
3072<tr><th>credentials</th>
3073 <td class="description">Array of credentials</td></tr>
3074</tbody></table>
798d6e29
MS
3075<h3 class="function"><a id="httpGet">httpGet</a></h3>
3076 <p class="description">Send a GET request to the server.</p>
3077<p class="code">
98d88c8d 3078int httpGet(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 3079<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3080<table class="list"><tbody>
3081<tr><th>http</th>
3082 <td class="description">HTTP connection</td></tr>
3083<tr><th>uri</th>
3084 <td class="description">URI to get</td></tr>
3085</tbody></table>
798d6e29
MS
3086<h4 class="returnvalue">Return Value</h4>
3087 <p class="description">Status of call (0 = success)</p>
3088<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetActivity">httpGetActivity</a></h3>
3089 <p class="description">Get the most recent activity for a connection.</p>
3090<p class="code">
98d88c8d 3091time_t httpGetActivity(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3092<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3093<table class="list"><tbody>
3094<tr><th>http</th>
3095 <td class="description">HTTP connection</td></tr>
3096</tbody></table>
798d6e29
MS
3097<h4 class="returnvalue">Return Value</h4>
3098 <p class="description">Time of last read or write</p>
3099<h4 class="discussion">Discussion</h4>
65bebeac 3100 <p class="discussion">The return value is the time in seconds of the last read or write.
798d6e29
MS
3101
3102</p>
3103<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetAddress">httpGetAddress</a></h3>
3104 <p class="description">Get the address of the connected peer of a connection.</p>
3105<p class="code">
98d88c8d 3106<a href="#http_addr_t">http_addr_t</a> *httpGetAddress(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3107<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3108<table class="list"><tbody>
3109<tr><th>http</th>
3110 <td class="description">HTTP connection</td></tr>
3111</tbody></table>
798d6e29
MS
3112<h4 class="returnvalue">Return Value</h4>
3113 <p class="description">Connected address or <code>NULL</code></p>
3114<h4 class="discussion">Discussion</h4>
65bebeac
MS
3115 <p class="discussion">For connections created with <a href="#httpConnect2"><code>httpConnect2</code></a>, the address is for the
3116server. For connections created with <a href="#httpAccept"><code>httpAccept</code></a>, the address is for
3117the client.<br>
3118<br>
3119Returns <code>NULL</code> if the socket is currently unconnected.
798d6e29
MS
3120
3121</p>
3122<h3 class="function"><span class="info">&#160;CUPS 1.3/macOS 10.5&#160;</span><a id="httpGetAuthString">httpGetAuthString</a></h3>
3123 <p class="description">Get the current authorization string.</p>
3124<p class="code">
98d88c8d 3125char *httpGetAuthString(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3126<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3127<table class="list"><tbody>
3128<tr><th>http</th>
3129 <td class="description">HTTP connection</td></tr>
3130</tbody></table>
798d6e29
MS
3131<h4 class="returnvalue">Return Value</h4>
3132 <p class="description">Authorization string</p>
3133<h4 class="discussion">Discussion</h4>
65bebeac
MS
3134 <p class="discussion">The authorization string is set by <a href="#cupsDoAuthentication"><code>cupsDoAuthentication</code></a> and
3135<a href="#httpSetAuthString"><code>httpSetAuthString</code></a>. Use <a href="#httpGetAuthString"><code>httpGetAuthString</code></a> to retrieve the
3136string to use with <a href="#httpSetField"><code>httpSetField</code></a> for the
3137<code>HTTP_FIELD_AUTHORIZATION</code> value.
798d6e29
MS
3138
3139</p>
3140<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetBlocking">httpGetBlocking</a></h3>
3141 <p class="description">Get the blocking/non-block state of a connection.</p>
3142<p class="code">
98d88c8d 3143int httpGetBlocking(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3144<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3145<table class="list"><tbody>
3146<tr><th>http</th>
3147 <td class="description">HTTP connection</td></tr>
3148</tbody></table>
798d6e29
MS
3149<h4 class="returnvalue">Return Value</h4>
3150 <p class="description">1 if blocking, 0 if non-blocking</p>
3151<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpGetContentEncoding">httpGetContentEncoding</a></h3>
3152 <p class="description">Get a common content encoding, if any, between
3153the client and server.</p>
3154<p class="code">
98d88c8d 3155const char *httpGetContentEncoding(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3156<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3157<table class="list"><tbody>
3158<tr><th>http</th>
3159 <td class="description">HTTP connection</td></tr>
3160</tbody></table>
798d6e29
MS
3161<h4 class="returnvalue">Return Value</h4>
3162 <p class="description">Content-Coding value or
3163<code>NULL</code> for the identity
3164coding.</p>
3165<h4 class="discussion">Discussion</h4>
3166 <p class="discussion">This function uses the value of the Accepts-Encoding HTTP header and must be
3167called after receiving a response from the server or a request from the
3168client. The value returned can be use in subsequent requests (for clients)
3169or in the response (for servers) in order to compress the content stream.
3170
3171</p>
3172<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="httpGetCookie">httpGetCookie</a></h3>
3173 <p class="description">Get any cookie data from the response.</p>
3174<p class="code">
98d88c8d 3175const char *httpGetCookie(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3176<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3177<table class="list"><tbody>
3178<tr><th>http</th>
3179 <td class="description">HTTP connection</td></tr>
3180</tbody></table>
798d6e29 3181<h4 class="returnvalue">Return Value</h4>
65bebeac 3182 <p class="description">Cookie data or <code>NULL</code></p>
798d6e29
MS
3183<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetDateString2">httpGetDateString2</a></h3>
3184 <p class="description">Get a formatted date/time string from a time value.</p>
3185<p class="code">
98d88c8d
MS
3186const char *httpGetDateString2(time_t t, char *s, int slen);</p>
3187<h4 class="parameters">Parameters</h4>
3188<table class="list"><tbody>
3189<tr><th>t</th>
65bebeac 3190 <td class="description">Time in seconds</td></tr>
98d88c8d
MS
3191<tr><th>s</th>
3192 <td class="description">String buffer</td></tr>
3193<tr><th>slen</th>
3194 <td class="description">Size of string buffer</td></tr>
3195</tbody></table>
798d6e29
MS
3196<h4 class="returnvalue">Return Value</h4>
3197 <p class="description">Date/time string</p>
3198<h3 class="function"><a id="httpGetDateTime">httpGetDateTime</a></h3>
3199 <p class="description">Get a time value from a formatted date/time string.</p>
3200<p class="code">
98d88c8d 3201time_t httpGetDateTime(const char *s);</p>
798d6e29 3202<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3203<table class="list"><tbody>
3204<tr><th>s</th>
3205 <td class="description">Date/time string</td></tr>
3206</tbody></table>
798d6e29 3207<h4 class="returnvalue">Return Value</h4>
65bebeac 3208 <p class="description">Time in seconds</p>
798d6e29
MS
3209<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetEncryption">httpGetEncryption</a></h3>
3210 <p class="description">Get the current encryption mode of a connection.</p>
3211<p class="code">
98d88c8d 3212<a href="#http_encryption_t">http_encryption_t</a> httpGetEncryption(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3213<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3214<table class="list"><tbody>
3215<tr><th>http</th>
3216 <td class="description">HTTP connection</td></tr>
3217</tbody></table>
798d6e29
MS
3218<h4 class="returnvalue">Return Value</h4>
3219 <p class="description">Current encryption mode</p>
3220<h4 class="discussion">Discussion</h4>
3221 <p class="discussion">This function returns the encryption mode for the connection. Use the
3222<a href="#httpIsEncrypted"><code>httpIsEncrypted</code></a> function to determine whether a TLS session has
3223been established.
3224
3225</p>
3226<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpGetExpect">httpGetExpect</a></h3>
3227 <p class="description">Get the value of the Expect header, if any.</p>
3228<p class="code">
98d88c8d 3229http_status_t httpGetExpect(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3230<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3231<table class="list"><tbody>
3232<tr><th>http</th>
3233 <td class="description">HTTP connection</td></tr>
3234</tbody></table>
798d6e29
MS
3235<h4 class="returnvalue">Return Value</h4>
3236 <p class="description">Expect: status, if any</p>
3237<h4 class="discussion">Discussion</h4>
3238 <p class="discussion">Returns <code>HTTP_STATUS_NONE</code> if there is no Expect header, otherwise
3239returns the expected HTTP status code, typically <code>HTTP_STATUS_CONTINUE</code>.
3240
3241</p>
3242<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetFd">httpGetFd</a></h3>
3243 <p class="description">Get the file descriptor associated with a connection.</p>
3244<p class="code">
98d88c8d 3245int httpGetFd(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3246<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3247<table class="list"><tbody>
3248<tr><th>http</th>
3249 <td class="description">HTTP connection</td></tr>
3250</tbody></table>
798d6e29
MS
3251<h4 class="returnvalue">Return Value</h4>
3252 <p class="description">File descriptor or -1 if none</p>
3253<h3 class="function"><a id="httpGetField">httpGetField</a></h3>
3254 <p class="description">Get a field value from a request/response.</p>
3255<p class="code">
98d88c8d 3256const char *httpGetField(<a href="#http_t">http_t</a> *http, <a href="#http_field_t">http_field_t</a> field);</p>
798d6e29 3257<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3258<table class="list"><tbody>
3259<tr><th>http</th>
3260 <td class="description">HTTP connection</td></tr>
3261<tr><th>field</th>
3262 <td class="description">Field to get</td></tr>
3263</tbody></table>
798d6e29
MS
3264<h4 class="returnvalue">Return Value</h4>
3265 <p class="description">Field value</p>
798d6e29
MS
3266<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetHostname">httpGetHostname</a></h3>
3267 <p class="description">Get the FQDN for the connection or local system.</p>
3268<p class="code">
98d88c8d
MS
3269const char *httpGetHostname(<a href="#http_t">http_t</a> *http, char *s, int slen);</p>
3270<h4 class="parameters">Parameters</h4>
3271<table class="list"><tbody>
3272<tr><th>http</th>
3273 <td class="description">HTTP connection or NULL</td></tr>
3274<tr><th>s</th>
3275 <td class="description">String buffer for name</td></tr>
3276<tr><th>slen</th>
3277 <td class="description">Size of buffer</td></tr>
3278</tbody></table>
798d6e29
MS
3279<h4 class="returnvalue">Return Value</h4>
3280 <p class="description">FQDN for connection or system</p>
3281<h4 class="discussion">Discussion</h4>
3282 <p class="discussion">When &quot;http&quot; points to a connected socket, return the hostname or
3283address that was used in the call to httpConnect() or httpConnectEncrypt(),
3284or the address of the client for the connection from httpAcceptConnection().
3285Otherwise, return the FQDN for the local system using both gethostname()
3286and gethostbyname() to get the local hostname with domain.
3287
3288</p>
3289<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetKeepAlive">httpGetKeepAlive</a></h3>
3290 <p class="description">Get the current Keep-Alive state of the connection.</p>
3291<p class="code">
98d88c8d 3292<a href="#http_keepalive_t">http_keepalive_t</a> httpGetKeepAlive(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3293<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3294<table class="list"><tbody>
3295<tr><th>http</th>
3296 <td class="description">HTTP connection</td></tr>
3297</tbody></table>
798d6e29
MS
3298<h4 class="returnvalue">Return Value</h4>
3299 <p class="description">Keep-Alive state</p>
798d6e29
MS
3300<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetLength2">httpGetLength2</a></h3>
3301 <p class="description">Get the amount of data remaining from the
3302content-length or transfer-encoding fields.</p>
3303<p class="code">
98d88c8d 3304off_t httpGetLength2(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3305<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3306<table class="list"><tbody>
3307<tr><th>http</th>
3308 <td class="description">HTTP connection</td></tr>
3309</tbody></table>
798d6e29
MS
3310<h4 class="returnvalue">Return Value</h4>
3311 <p class="description">Content length</p>
3312<h4 class="discussion">Discussion</h4>
3313 <p class="discussion">This function returns the complete content length, even for
3314content larger than 2^31 - 1.
3315
3316</p>
3317<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetPending">httpGetPending</a></h3>
3318 <p class="description">Get the number of bytes that are buffered for writing.</p>
3319<p class="code">
98d88c8d 3320size_t httpGetPending(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3321<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3322<table class="list"><tbody>
3323<tr><th>http</th>
3324 <td class="description">HTTP connection</td></tr>
3325</tbody></table>
798d6e29
MS
3326<h4 class="returnvalue">Return Value</h4>
3327 <p class="description">Number of bytes buffered</p>
3328<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetReady">httpGetReady</a></h3>
3329 <p class="description">Get the number of bytes that can be read without blocking.</p>
3330<p class="code">
98d88c8d 3331size_t httpGetReady(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3332<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3333<table class="list"><tbody>
3334<tr><th>http</th>
3335 <td class="description">HTTP connection</td></tr>
3336</tbody></table>
798d6e29
MS
3337<h4 class="returnvalue">Return Value</h4>
3338 <p class="description">Number of bytes available</p>
3339<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpGetRemaining">httpGetRemaining</a></h3>
3340 <p class="description">Get the number of remaining bytes in the message
3341body or current chunk.</p>
3342<p class="code">
98d88c8d 3343size_t httpGetRemaining(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3344<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3345<table class="list"><tbody>
3346<tr><th>http</th>
3347 <td class="description">HTTP connection</td></tr>
3348</tbody></table>
798d6e29
MS
3349<h4 class="returnvalue">Return Value</h4>
3350 <p class="description">Remaining bytes</p>
3351<h4 class="discussion">Discussion</h4>
3352 <p class="discussion">The <a href="#httpIsChunked"><code>httpIsChunked</code></a> function can be used to determine whether the
3353message body is chunked or fixed-length.
3354
3355</p>
3356<h3 class="function"><a id="httpGetState">httpGetState</a></h3>
3357 <p class="description">Get the current state of the HTTP request.</p>
3358<p class="code">
98d88c8d 3359<a href="#http_state_t">http_state_t</a> httpGetState(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3360<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3361<table class="list"><tbody>
3362<tr><th>http</th>
3363 <td class="description">HTTP connection</td></tr>
3364</tbody></table>
798d6e29
MS
3365<h4 class="returnvalue">Return Value</h4>
3366 <p class="description">HTTP state</p>
3367<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetStatus">httpGetStatus</a></h3>
3368 <p class="description">Get the status of the last HTTP request.</p>
3369<p class="code">
98d88c8d 3370http_status_t httpGetStatus(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3371<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3372<table class="list"><tbody>
3373<tr><th>http</th>
3374 <td class="description">HTTP connection</td></tr>
3375</tbody></table>
798d6e29
MS
3376<h4 class="returnvalue">Return Value</h4>
3377 <p class="description">HTTP status</p>
798d6e29
MS
3378<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpGetSubField2">httpGetSubField2</a></h3>
3379 <p class="description">Get a sub-field value.</p>
3380<p class="code">
98d88c8d
MS
3381char *httpGetSubField2(<a href="#http_t">http_t</a> *http, <a href="#http_field_t">http_field_t</a> field, const char *name, char *value, int valuelen);</p>
3382<h4 class="parameters">Parameters</h4>
3383<table class="list"><tbody>
3384<tr><th>http</th>
3385 <td class="description">HTTP connection</td></tr>
3386<tr><th>field</th>
3387 <td class="description">Field index</td></tr>
3388<tr><th>name</th>
3389 <td class="description">Name of sub-field</td></tr>
3390<tr><th>value</th>
3391 <td class="description">Value string</td></tr>
3392<tr><th>valuelen</th>
3393 <td class="description">Size of value buffer</td></tr>
3394</tbody></table>
798d6e29 3395<h4 class="returnvalue">Return Value</h4>
65bebeac 3396 <p class="description">Value or <code>NULL</code></p>
798d6e29
MS
3397<h3 class="function"><a id="httpGetVersion">httpGetVersion</a></h3>
3398 <p class="description">Get the HTTP version at the other end.</p>
3399<p class="code">
98d88c8d 3400<a href="#http_version_t">http_version_t</a> httpGetVersion(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3401<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3402<table class="list"><tbody>
3403<tr><th>http</th>
3404 <td class="description">HTTP connection</td></tr>
3405</tbody></table>
798d6e29
MS
3406<h4 class="returnvalue">Return Value</h4>
3407 <p class="description">Version number</p>
3408<h3 class="function"><a id="httpGets">httpGets</a></h3>
3409 <p class="description">Get a line of text from a HTTP connection.</p>
3410<p class="code">
98d88c8d
MS
3411char *httpGets(char *line, int length, <a href="#http_t">http_t</a> *http);</p>
3412<h4 class="parameters">Parameters</h4>
3413<table class="list"><tbody>
3414<tr><th>line</th>
3415 <td class="description">Line to read into</td></tr>
3416<tr><th>length</th>
3417 <td class="description">Max length of buffer</td></tr>
3418<tr><th>http</th>
3419 <td class="description">HTTP connection</td></tr>
3420</tbody></table>
798d6e29 3421<h4 class="returnvalue">Return Value</h4>
65bebeac 3422 <p class="description">Line or <code>NULL</code></p>
798d6e29
MS
3423<h3 class="function"><a id="httpHead">httpHead</a></h3>
3424 <p class="description">Send a HEAD request to the server.</p>
3425<p class="code">
98d88c8d 3426int httpHead(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 3427<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3428<table class="list"><tbody>
3429<tr><th>http</th>
3430 <td class="description">HTTP connection</td></tr>
3431<tr><th>uri</th>
3432 <td class="description">URI for head</td></tr>
3433</tbody></table>
798d6e29
MS
3434<h4 class="returnvalue">Return Value</h4>
3435 <p class="description">Status of call (0 = success)</p>
3436<h3 class="function"><a id="httpInitialize">httpInitialize</a></h3>
53af7f21
MS
3437 <p class="description">Initialize the HTTP interface library and set the
3438default HTTP proxy (if any).</p>
98d88c8d
MS
3439<p class="code">
3440void httpInitialize(void);</p>
798d6e29
MS
3441<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpIsChunked">httpIsChunked</a></h3>
3442 <p class="description">Report whether a message body is chunked.</p>
3443<p class="code">
98d88c8d 3444int httpIsChunked(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3445<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3446<table class="list"><tbody>
3447<tr><th>http</th>
3448 <td class="description">HTTP connection</td></tr>
3449</tbody></table>
798d6e29
MS
3450<h4 class="returnvalue">Return Value</h4>
3451 <p class="description">1 if chunked, 0 if not</p>
3452<h4 class="discussion">Discussion</h4>
3453 <p class="discussion">This function returns non-zero if the message body is composed of
3454variable-length chunks.
3455
3456</p>
3457<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpIsEncrypted">httpIsEncrypted</a></h3>
3458 <p class="description">Report whether a connection is encrypted.</p>
3459<p class="code">
98d88c8d 3460int httpIsEncrypted(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3461<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3462<table class="list"><tbody>
3463<tr><th>http</th>
3464 <td class="description">HTTP connection</td></tr>
3465</tbody></table>
798d6e29
MS
3466<h4 class="returnvalue">Return Value</h4>
3467 <p class="description">1 if encrypted, 0 if not</p>
3468<h4 class="discussion">Discussion</h4>
3469 <p class="discussion">This function returns non-zero if the connection is currently encrypted.
3470
3471</p>
3472<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpLoadCredentials">httpLoadCredentials</a></h3>
3473 <p class="description">Load X.509 credentials from a keychain file.</p>
3474<p class="code">
98d88c8d
MS
3475int httpLoadCredentials(const char *path, cups_array_t **credentials, const char *common_name);</p>
3476<h4 class="parameters">Parameters</h4>
3477<table class="list"><tbody>
3478<tr><th>path</th>
3479 <td class="description">Keychain path or <code>NULL</code> for default</td></tr>
3480<tr><th>credentials</th>
3481 <td class="description">Credentials</td></tr>
3482<tr><th>common_name</th>
3483 <td class="description">Common name for credentials</td></tr>
3484</tbody></table>
798d6e29
MS
3485<h4 class="returnvalue">Return Value</h4>
3486 <p class="description">0 on success, -1 on error</p>
3487<h3 class="function"><a id="httpOptions">httpOptions</a></h3>
3488 <p class="description">Send an OPTIONS request to the server.</p>
3489<p class="code">
98d88c8d 3490int httpOptions(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 3491<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3492<table class="list"><tbody>
3493<tr><th>http</th>
3494 <td class="description">HTTP connection</td></tr>
3495<tr><th>uri</th>
3496 <td class="description">URI for options</td></tr>
3497</tbody></table>
798d6e29
MS
3498<h4 class="returnvalue">Return Value</h4>
3499 <p class="description">Status of call (0 = success)</p>
3500<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpPeek">httpPeek</a></h3>
3501 <p class="description">Peek at data from a HTTP connection.</p>
3502<p class="code">
98d88c8d
MS
3503ssize_t httpPeek(<a href="#http_t">http_t</a> *http, char *buffer, size_t length);</p>
3504<h4 class="parameters">Parameters</h4>
3505<table class="list"><tbody>
3506<tr><th>http</th>
3507 <td class="description">HTTP connection</td></tr>
3508<tr><th>buffer</th>
3509 <td class="description">Buffer for data</td></tr>
3510<tr><th>length</th>
3511 <td class="description">Maximum number of bytes</td></tr>
3512</tbody></table>
798d6e29
MS
3513<h4 class="returnvalue">Return Value</h4>
3514 <p class="description">Number of bytes copied</p>
3515<h4 class="discussion">Discussion</h4>
3516 <p class="discussion">This function copies available data from the given HTTP connection, reading
3517a buffer as needed. The data is still available for reading using
65bebeac 3518<a href="#httpRead2"><code>httpRead2</code></a>.<br>
798d6e29
MS
3519<br>
3520For non-blocking connections the usual timeouts apply.
3521
3522</p>
3523<h3 class="function"><a id="httpPost">httpPost</a></h3>
3524 <p class="description">Send a POST request to the server.</p>
3525<p class="code">
98d88c8d 3526int httpPost(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 3527<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3528<table class="list"><tbody>
3529<tr><th>http</th>
3530 <td class="description">HTTP connection</td></tr>
3531<tr><th>uri</th>
3532 <td class="description">URI for post</td></tr>
3533</tbody></table>
798d6e29
MS
3534<h4 class="returnvalue">Return Value</h4>
3535 <p class="description">Status of call (0 = success)</p>
3536<h3 class="function"><a id="httpPut">httpPut</a></h3>
3537 <p class="description">Send a PUT request to the server.</p>
3538<p class="code">
98d88c8d 3539int httpPut(<a href="#http_t">http_t</a> *http, const char *uri);</p>
798d6e29 3540<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3541<table class="list"><tbody>
3542<tr><th>http</th>
3543 <td class="description">HTTP connection</td></tr>
3544<tr><th>uri</th>
3545 <td class="description">URI to put</td></tr>
3546</tbody></table>
798d6e29
MS
3547<h4 class="returnvalue">Return Value</h4>
3548 <p class="description">Status of call (0 = success)</p>
798d6e29
MS
3549<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpRead2">httpRead2</a></h3>
3550 <p class="description">Read data from a HTTP connection.</p>
3551<p class="code">
98d88c8d
MS
3552ssize_t httpRead2(<a href="#http_t">http_t</a> *http, char *buffer, size_t length);</p>
3553<h4 class="parameters">Parameters</h4>
3554<table class="list"><tbody>
3555<tr><th>http</th>
3556 <td class="description">HTTP connection</td></tr>
3557<tr><th>buffer</th>
3558 <td class="description">Buffer for data</td></tr>
3559<tr><th>length</th>
3560 <td class="description">Maximum number of bytes</td></tr>
3561</tbody></table>
798d6e29
MS
3562<h4 class="returnvalue">Return Value</h4>
3563 <p class="description">Number of bytes read</p>
3564<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpReadRequest">httpReadRequest</a></h3>
3565 <p class="description">Read a HTTP request from a connection.</p>
3566<p class="code">
98d88c8d
MS
3567<a href="#http_state_t">http_state_t</a> httpReadRequest(<a href="#http_t">http_t</a> *http, char *uri, size_t urilen);</p>
3568<h4 class="parameters">Parameters</h4>
3569<table class="list"><tbody>
3570<tr><th>http</th>
3571 <td class="description">HTTP connection</td></tr>
3572<tr><th>uri</th>
3573 <td class="description">URI buffer</td></tr>
3574<tr><th>urilen</th>
3575 <td class="description">Size of URI buffer</td></tr>
3576</tbody></table>
798d6e29
MS
3577<h4 class="returnvalue">Return Value</h4>
3578 <p class="description">New state of connection</p>
798d6e29
MS
3579<h3 class="function"><a id="httpReconnect2">httpReconnect2</a></h3>
3580 <p class="description">Reconnect to a HTTP server with timeout and optional
3581cancel.</p>
3582<p class="code">
98d88c8d
MS
3583int httpReconnect2(<a href="#http_t">http_t</a> *http, int msec, int *cancel);</p>
3584<h4 class="parameters">Parameters</h4>
3585<table class="list"><tbody>
3586<tr><th>http</th>
3587 <td class="description">HTTP connection</td></tr>
3588<tr><th>msec</th>
3589 <td class="description">Timeout in milliseconds</td></tr>
3590<tr><th>cancel</th>
3591 <td class="description">Pointer to &quot;cancel&quot; variable</td></tr>
3592</tbody></table>
798d6e29
MS
3593<h4 class="returnvalue">Return Value</h4>
3594 <p class="description">0 on success, non-zero on failure</p>
3595<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpResolveHostname">httpResolveHostname</a></h3>
3596 <p class="description">Resolve the hostname of the HTTP connection
3597address.</p>
3598<p class="code">
98d88c8d
MS
3599const char *httpResolveHostname(<a href="#http_t">http_t</a> *http, char *buffer, size_t bufsize);</p>
3600<h4 class="parameters">Parameters</h4>
3601<table class="list"><tbody>
3602<tr><th>http</th>
3603 <td class="description">HTTP connection</td></tr>
3604<tr><th>buffer</th>
3605 <td class="description">Hostname buffer</td></tr>
3606<tr><th>bufsize</th>
3607 <td class="description">Size of buffer</td></tr>
3608</tbody></table>
798d6e29
MS
3609<h4 class="returnvalue">Return Value</h4>
3610 <p class="description">Resolved hostname or <code>NULL</code></p>
3611<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpSaveCredentials">httpSaveCredentials</a></h3>
3612 <p class="description">Save X.509 credentials to a keychain file.</p>
3613<p class="code">
98d88c8d
MS
3614int httpSaveCredentials(const char *path, cups_array_t *credentials, const char *common_name);</p>
3615<h4 class="parameters">Parameters</h4>
3616<table class="list"><tbody>
3617<tr><th>path</th>
3618 <td class="description">Keychain path or <code>NULL</code> for default</td></tr>
3619<tr><th>credentials</th>
3620 <td class="description">Credentials</td></tr>
3621<tr><th>common_name</th>
3622 <td class="description">Common name for credentials</td></tr>
3623</tbody></table>
798d6e29
MS
3624<h4 class="returnvalue">Return Value</h4>
3625 <p class="description">-1 on error, 0 on success</p>
798d6e29
MS
3626<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpSeparateURI">httpSeparateURI</a></h3>
3627 <p class="description">Separate a Universal Resource Identifier into its
3628components.</p>
3629<p class="code">
98d88c8d
MS
3630<a href="#http_uri_status_t">http_uri_status_t</a> httpSeparateURI(<a href="#http_uri_coding_t">http_uri_coding_t</a> decoding, const char *uri, char *scheme, int schemelen, char *username, int usernamelen, char *host, int hostlen, int *port, char *resource, int resourcelen);</p>
3631<h4 class="parameters">Parameters</h4>
3632<table class="list"><tbody>
3633<tr><th>decoding</th>
3634 <td class="description">Decoding flags</td></tr>
3635<tr><th>uri</th>
3636 <td class="description">Universal Resource Identifier</td></tr>
3637<tr><th>scheme</th>
3638 <td class="description">Scheme (http, https, etc.)</td></tr>
3639<tr><th>schemelen</th>
3640 <td class="description">Size of scheme buffer</td></tr>
3641<tr><th>username</th>
3642 <td class="description">Username</td></tr>
3643<tr><th>usernamelen</th>
3644 <td class="description">Size of username buffer</td></tr>
3645<tr><th>host</th>
3646 <td class="description">Hostname</td></tr>
3647<tr><th>hostlen</th>
3648 <td class="description">Size of hostname buffer</td></tr>
3649<tr><th>port</th>
3650 <td class="description">Port number to use</td></tr>
3651<tr><th>resource</th>
3652 <td class="description">Resource/filename</td></tr>
3653<tr><th>resourcelen</th>
3654 <td class="description">Size of resource buffer</td></tr>
3655</tbody></table>
798d6e29
MS
3656<h4 class="returnvalue">Return Value</h4>
3657 <p class="description">Result of separation</p>
98d88c8d 3658<h3 class="function"><span class="info">&#160;CUPS 1.3/macOS 10.5&#160;</span><a id="httpSetAuthString">httpSetAuthString</a></h3>
53af7f21 3659 <p class="description">Set the current authorization string.</p>
98d88c8d
MS
3660<p class="code">
3661void httpSetAuthString(<a href="#http_t">http_t</a> *http, const char *scheme, const char *data);</p>
3662<h4 class="parameters">Parameters</h4>
3663<table class="list"><tbody>
3664<tr><th>http</th>
3665 <td class="description">HTTP connection</td></tr>
3666<tr><th>scheme</th>
3667 <td class="description">Auth scheme (NULL to clear it)</td></tr>
3668<tr><th>data</th>
3669 <td class="description">Auth data (NULL for none)</td></tr>
3670</tbody></table>
3671<h4 class="discussion">Discussion</h4>
798d6e29 3672 <p class="discussion">This function just stores a copy of the current authorization string in
65bebeac
MS
3673the HTTP connection object. You must still call <a href="#httpSetField"><code>httpSetField</code></a> to set
3674<code>HTTP_FIELD_AUTHORIZATION</code> prior to issuing a HTTP request using
3675<a href="#httpGet"><code>httpGet</code></a>, <a href="#httpHead"><code>httpHead</code></a>, <a href="#httpOptions"><code>httpOptions</code></a>, <a href="#httpPost"><code>httpPost</code></a>, or
3676<a href="#httpPut"><code>httpPut</code></a>.
798d6e29
MS
3677
3678</p>
98d88c8d
MS
3679<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="httpSetCookie">httpSetCookie</a></h3>
3680 <p class="description">Set the cookie value(s).</p>
798d6e29 3681<p class="code">
98d88c8d 3682void httpSetCookie(<a href="#http_t">http_t</a> *http, const char *cookie);</p>
798d6e29 3683<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3684<table class="list"><tbody>
3685<tr><th>http</th>
3686 <td class="description">Connection</td></tr>
3687<tr><th>cookie</th>
3688 <td class="description">Cookie string</td></tr>
3689</tbody></table>
798d6e29
MS
3690<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="httpSetCredentials">httpSetCredentials</a></h3>
3691 <p class="description">Set the credentials associated with an encrypted
3692connection.</p>
3693<p class="code">
98d88c8d 3694int httpSetCredentials(<a href="#http_t">http_t</a> *http, cups_array_t *credentials);</p>
798d6e29 3695<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3696<table class="list"><tbody>
3697<tr><th>http</th>
3698 <td class="description">HTTP connection</td></tr>
3699<tr><th>credentials</th>
3700 <td class="description">Array of credentials</td></tr>
3701</tbody></table>
798d6e29
MS
3702<h4 class="returnvalue">Return Value</h4>
3703 <p class="description">Status of call (0 = success)</p>
98d88c8d 3704<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpSetDefaultField">httpSetDefaultField</a></h3>
53af7f21 3705 <p class="description">Set the default value of an HTTP header.</p>
98d88c8d
MS
3706<p class="code">
3707void httpSetDefaultField(<a href="#http_t">http_t</a> *http, <a href="#http_field_t">http_field_t</a> field, const char *value);</p>
3708<h4 class="parameters">Parameters</h4>
3709<table class="list"><tbody>
3710<tr><th>http</th>
3711 <td class="description">HTTP connection</td></tr>
3712<tr><th>field</th>
3713 <td class="description">Field index</td></tr>
3714<tr><th>value</th>
3715 <td class="description">Value</td></tr>
3716</tbody></table>
3717<h4 class="discussion">Discussion</h4>
798d6e29
MS
3718 <p class="discussion">Currently only <code>HTTP_FIELD_ACCEPT_ENCODING</code>, <code>HTTP_FIELD_SERVER</code>,
3719and <code>HTTP_FIELD_USER_AGENT</code> can be set.
3720
3721</p>
98d88c8d
MS
3722<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpSetExpect">httpSetExpect</a></h3>
3723 <p class="description">Set the Expect: header in a request.</p>
798d6e29 3724<p class="code">
98d88c8d 3725void httpSetExpect(<a href="#http_t">http_t</a> *http, http_status_t expect);</p>
798d6e29 3726<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3727<table class="list"><tbody>
3728<tr><th>http</th>
3729 <td class="description">HTTP connection</td></tr>
3730<tr><th>expect</th>
3731 <td class="description">HTTP status to expect
3732(<code>HTTP_STATUS_CONTINUE</code>)</td></tr>
3733</tbody></table>
3734<h4 class="discussion">Discussion</h4>
798d6e29
MS
3735 <p class="discussion">Currently only <code>HTTP_STATUS_CONTINUE</code> is supported for the &quot;expect&quot;
3736argument.
3737
3738</p>
3739<h3 class="function"><a id="httpSetField">httpSetField</a></h3>
53af7f21 3740 <p class="description">Set the value of an HTTP header.</p>
798d6e29 3741<p class="code">
98d88c8d
MS
3742void httpSetField(<a href="#http_t">http_t</a> *http, <a href="#http_field_t">http_field_t</a> field, const char *value);</p>
3743<h4 class="parameters">Parameters</h4>
3744<table class="list"><tbody>
3745<tr><th>http</th>
3746 <td class="description">HTTP connection</td></tr>
3747<tr><th>field</th>
3748 <td class="description">Field index</td></tr>
3749<tr><th>value</th>
3750 <td class="description">Value</td></tr>
3751</tbody></table>
3752<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpSetKeepAlive">httpSetKeepAlive</a></h3>
53af7f21 3753 <p class="description">Set the current Keep-Alive state of a connection.</p>
98d88c8d
MS
3754<p class="code">
3755void httpSetKeepAlive(<a href="#http_t">http_t</a> *http, <a href="#http_keepalive_t">http_keepalive_t</a> keep_alive);</p>
3756<h4 class="parameters">Parameters</h4>
3757<table class="list"><tbody>
3758<tr><th>http</th>
3759 <td class="description">HTTP connection</td></tr>
3760<tr><th>keep_alive</th>
3761 <td class="description">New Keep-Alive value</td></tr>
3762</tbody></table>
3763<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpSetLength">httpSetLength</a></h3>
53af7f21 3764 <p class="description">Set the content-length and content-encoding.</p>
98d88c8d
MS
3765<p class="code">
3766void httpSetLength(<a href="#http_t">http_t</a> *http, size_t length);</p>
3767<h4 class="parameters">Parameters</h4>
3768<table class="list"><tbody>
3769<tr><th>http</th>
3770 <td class="description">HTTP connection</td></tr>
3771<tr><th>length</th>
3772 <td class="description">Length (0 for chunked)</td></tr>
3773</tbody></table>
3774<h3 class="function"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span><a id="httpSetTimeout">httpSetTimeout</a></h3>
53af7f21 3775 <p class="description">Set read/write timeouts and an optional callback.</p>
98d88c8d
MS
3776<p class="code">
3777void httpSetTimeout(<a href="#http_t">http_t</a> *http, double timeout, <a href="#http_timeout_cb_t">http_timeout_cb_t</a> cb, void *user_data);</p>
3778<h4 class="parameters">Parameters</h4>
3779<table class="list"><tbody>
3780<tr><th>http</th>
3781 <td class="description">HTTP connection</td></tr>
3782<tr><th>timeout</th>
3783 <td class="description">Number of seconds for timeout,
3784must be greater than 0</td></tr>
3785<tr><th>cb</th>
65bebeac 3786 <td class="description">Callback function or <code>NULL</code></td></tr>
98d88c8d
MS
3787<tr><th>user_data</th>
3788 <td class="description">User data pointer</td></tr>
3789</tbody></table>
3790<h4 class="discussion">Discussion</h4>
798d6e29
MS
3791 <p class="discussion">The optional timeout callback receives both the HTTP connection and a user
3792data pointer and must return 1 to continue or 0 to error (time) out.
3793
3794</p>
98d88c8d
MS
3795<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpShutdown">httpShutdown</a></h3>
3796 <p class="description">Shutdown one side of an HTTP connection.</p>
798d6e29 3797<p class="code">
98d88c8d 3798void httpShutdown(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3799<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3800<table class="list"><tbody>
3801<tr><th>http</th>
3802 <td class="description">HTTP connection</td></tr>
3803</tbody></table>
798d6e29
MS
3804<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpStateString">httpStateString</a></h3>
3805 <p class="description">Return the string describing a HTTP state value.</p>
3806<p class="code">
98d88c8d 3807const char *httpStateString(<a href="#http_state_t">http_state_t</a> state);</p>
798d6e29 3808<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3809<table class="list"><tbody>
3810<tr><th>state</th>
3811 <td class="description">HTTP state value</td></tr>
3812</tbody></table>
798d6e29
MS
3813<h4 class="returnvalue">Return Value</h4>
3814 <p class="description">State string</p>
3815<h3 class="function"><a id="httpStatus">httpStatus</a></h3>
3816 <p class="description">Return a short string describing a HTTP status code.</p>
3817<p class="code">
98d88c8d 3818const char *httpStatus(http_status_t status);</p>
798d6e29 3819<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3820<table class="list"><tbody>
3821<tr><th>status</th>
3822 <td class="description">HTTP status code</td></tr>
3823</tbody></table>
798d6e29
MS
3824<h4 class="returnvalue">Return Value</h4>
3825 <p class="description">Localized status string</p>
3826<h4 class="discussion">Discussion</h4>
3827 <p class="discussion">The returned string is localized to the current POSIX locale and is based
65bebeac 3828on the status strings defined in RFC 7231.</p>
798d6e29
MS
3829<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="httpURIStatusString">httpURIStatusString</a></h3>
3830 <p class="description">Return a string describing a URI status code.</p>
3831<p class="code">
98d88c8d 3832const char *httpURIStatusString(<a href="#http_uri_status_t">http_uri_status_t</a> status);</p>
798d6e29 3833<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3834<table class="list"><tbody>
3835<tr><th>status</th>
3836 <td class="description">URI status code</td></tr>
3837</tbody></table>
798d6e29
MS
3838<h4 class="returnvalue">Return Value</h4>
3839 <p class="description">Localized status string</p>
3840<h3 class="function"><a id="httpUpdate">httpUpdate</a></h3>
3841 <p class="description">Update the current HTTP state for incoming data.</p>
3842<p class="code">
98d88c8d 3843http_status_t httpUpdate(<a href="#http_t">http_t</a> *http);</p>
798d6e29 3844<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3845<table class="list"><tbody>
3846<tr><th>http</th>
3847 <td class="description">HTTP connection</td></tr>
3848</tbody></table>
798d6e29
MS
3849<h4 class="returnvalue">Return Value</h4>
3850 <p class="description">HTTP status</p>
3851<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="httpWait">httpWait</a></h3>
3852 <p class="description">Wait for data available on a connection.</p>
3853<p class="code">
98d88c8d 3854int httpWait(<a href="#http_t">http_t</a> *http, int msec);</p>
798d6e29 3855<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3856<table class="list"><tbody>
3857<tr><th>http</th>
3858 <td class="description">HTTP connection</td></tr>
3859<tr><th>msec</th>
3860 <td class="description">Milliseconds to wait</td></tr>
3861</tbody></table>
798d6e29
MS
3862<h4 class="returnvalue">Return Value</h4>
3863 <p class="description">1 if data is available, 0 otherwise</p>
798d6e29
MS
3864<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="httpWrite2">httpWrite2</a></h3>
3865 <p class="description">Write data to a HTTP connection.</p>
3866<p class="code">
98d88c8d
MS
3867ssize_t httpWrite2(<a href="#http_t">http_t</a> *http, const char *buffer, size_t length);</p>
3868<h4 class="parameters">Parameters</h4>
3869<table class="list"><tbody>
3870<tr><th>http</th>
3871 <td class="description">HTTP connection</td></tr>
3872<tr><th>buffer</th>
3873 <td class="description">Buffer for data</td></tr>
3874<tr><th>length</th>
3875 <td class="description">Number of bytes to write</td></tr>
3876</tbody></table>
798d6e29
MS
3877<h4 class="returnvalue">Return Value</h4>
3878 <p class="description">Number of bytes written</p>
3879<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="httpWriteResponse">httpWriteResponse</a></h3>
3880 <p class="description">Write a HTTP response to a client connection.</p>
3881<p class="code">
98d88c8d 3882int httpWriteResponse(<a href="#http_t">http_t</a> *http, http_status_t status);</p>
798d6e29 3883<h4 class="parameters">Parameters</h4>
98d88c8d
MS
3884<table class="list"><tbody>
3885<tr><th>http</th>
3886 <td class="description">HTTP connection</td></tr>
3887<tr><th>status</th>
3888 <td class="description">Status code</td></tr>
3889</tbody></table>
798d6e29
MS
3890<h4 class="returnvalue">Return Value</h4>
3891 <p class="description">0 on success, -1 on error</p>
3892<h3 class="function"><a id="ippAddBoolean">ippAddBoolean</a></h3>
3893 <p class="description">Add a boolean attribute to an IPP message.</p>
3894<p class="code">
98d88c8d
MS
3895<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddBoolean(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, char value);</p>
3896<h4 class="parameters">Parameters</h4>
3897<table class="list"><tbody>
3898<tr><th>ipp</th>
3899 <td class="description">IPP message</td></tr>
3900<tr><th>group</th>
3901 <td class="description">IPP group</td></tr>
3902<tr><th>name</th>
3903 <td class="description">Name of attribute</td></tr>
3904<tr><th>value</th>
3905 <td class="description">Value of attribute</td></tr>
3906</tbody></table>
798d6e29
MS
3907<h4 class="returnvalue">Return Value</h4>
3908 <p class="description">New attribute</p>
3909<h4 class="discussion">Discussion</h4>
3910 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
3911the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
3912<br>
3913The <code>group</code> parameter specifies the IPP attribute group tag: none
3914(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
3915event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
3916(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
3917(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
3918<h3 class="function"><a id="ippAddBooleans">ippAddBooleans</a></h3>
3919 <p class="description">Add an array of boolean values.</p>
3920<p class="code">
98d88c8d
MS
3921<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddBooleans(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, int num_values, const char *values);</p>
3922<h4 class="parameters">Parameters</h4>
3923<table class="list"><tbody>
3924<tr><th>ipp</th>
3925 <td class="description">IPP message</td></tr>
3926<tr><th>group</th>
3927 <td class="description">IPP group</td></tr>
3928<tr><th>name</th>
3929 <td class="description">Name of attribute</td></tr>
3930<tr><th>num_values</th>
3931 <td class="description">Number of values</td></tr>
3932<tr><th>values</th>
3933 <td class="description">Values</td></tr>
3934</tbody></table>
798d6e29
MS
3935<h4 class="returnvalue">Return Value</h4>
3936 <p class="description">New attribute</p>
3937<h4 class="discussion">Discussion</h4>
3938 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
3939the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
3940<br>
3941The <code>group</code> parameter specifies the IPP attribute group tag: none
3942(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
3943event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
3944(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
3945(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
3946<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="ippAddCollection">ippAddCollection</a></h3>
3947 <p class="description">Add a collection value.</p>
3948<p class="code">
98d88c8d
MS
3949<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddCollection(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, <a href="#ipp_t">ipp_t</a> *value);</p>
3950<h4 class="parameters">Parameters</h4>
3951<table class="list"><tbody>
3952<tr><th>ipp</th>
3953 <td class="description">IPP message</td></tr>
3954<tr><th>group</th>
3955 <td class="description">IPP group</td></tr>
3956<tr><th>name</th>
3957 <td class="description">Name of attribute</td></tr>
3958<tr><th>value</th>
3959 <td class="description">Value</td></tr>
3960</tbody></table>
798d6e29
MS
3961<h4 class="returnvalue">Return Value</h4>
3962 <p class="description">New attribute</p>
3963<h4 class="discussion">Discussion</h4>
3964 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
3965the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
3966<br>
3967The <code>group</code> parameter specifies the IPP attribute group tag: none
3968(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
3969event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
3970(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
3971(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).
3972
3973</p>
3974<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="ippAddCollections">ippAddCollections</a></h3>
3975 <p class="description">Add an array of collection values.</p>
3976<p class="code">
98d88c8d
MS
3977<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddCollections(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, int num_values, const <a href="#ipp_t">ipp_t</a> **values);</p>
3978<h4 class="parameters">Parameters</h4>
3979<table class="list"><tbody>
3980<tr><th>ipp</th>
3981 <td class="description">IPP message</td></tr>
3982<tr><th>group</th>
3983 <td class="description">IPP group</td></tr>
3984<tr><th>name</th>
3985 <td class="description">Name of attribute</td></tr>
3986<tr><th>num_values</th>
3987 <td class="description">Number of values</td></tr>
3988<tr><th>values</th>
3989 <td class="description">Values</td></tr>
3990</tbody></table>
798d6e29
MS
3991<h4 class="returnvalue">Return Value</h4>
3992 <p class="description">New attribute</p>
3993<h4 class="discussion">Discussion</h4>
3994 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
3995the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
3996<br>
3997The <code>group</code> parameter specifies the IPP attribute group tag: none
3998(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
3999event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4000(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4001(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).
4002
4003</p>
4004<h3 class="function"><a id="ippAddDate">ippAddDate</a></h3>
65bebeac 4005 <p class="description">Add a dateTime attribute to an IPP message.</p>
798d6e29 4006<p class="code">
98d88c8d
MS
4007<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddDate(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, const <a href="#ipp_uchar_t">ipp_uchar_t</a> *value);</p>
4008<h4 class="parameters">Parameters</h4>
4009<table class="list"><tbody>
4010<tr><th>ipp</th>
4011 <td class="description">IPP message</td></tr>
4012<tr><th>group</th>
4013 <td class="description">IPP group</td></tr>
4014<tr><th>name</th>
4015 <td class="description">Name of attribute</td></tr>
4016<tr><th>value</th>
4017 <td class="description">Value</td></tr>
4018</tbody></table>
798d6e29
MS
4019<h4 class="returnvalue">Return Value</h4>
4020 <p class="description">New attribute</p>
4021<h4 class="discussion">Discussion</h4>
4022 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4023the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4024<br>
4025The <code>group</code> parameter specifies the IPP attribute group tag: none
4026(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4027event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4028(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4029(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
4030<h3 class="function"><a id="ippAddInteger">ippAddInteger</a></h3>
4031 <p class="description">Add a integer attribute to an IPP message.</p>
4032<p class="code">
98d88c8d
MS
4033<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddInteger(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, int value);</p>
4034<h4 class="parameters">Parameters</h4>
4035<table class="list"><tbody>
4036<tr><th>ipp</th>
4037 <td class="description">IPP message</td></tr>
4038<tr><th>group</th>
4039 <td class="description">IPP group</td></tr>
4040<tr><th>value_tag</th>
4041 <td class="description">Type of attribute</td></tr>
4042<tr><th>name</th>
4043 <td class="description">Name of attribute</td></tr>
4044<tr><th>value</th>
4045 <td class="description">Value of attribute</td></tr>
4046</tbody></table>
798d6e29
MS
4047<h4 class="returnvalue">Return Value</h4>
4048 <p class="description">New attribute</p>
4049<h4 class="discussion">Discussion</h4>
4050 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4051the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4052<br>
4053The <code>group</code> parameter specifies the IPP attribute group tag: none
4054(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4055event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4056(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4057(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4058<br>
4059Supported values include enum (<code>IPP_TAG_ENUM</code>) and integer
4060(<code>IPP_TAG_INTEGER</code>).</p>
4061<h3 class="function"><a id="ippAddIntegers">ippAddIntegers</a></h3>
4062 <p class="description">Add an array of integer values.</p>
4063<p class="code">
98d88c8d
MS
4064<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddIntegers(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, int num_values, const int *values);</p>
4065<h4 class="parameters">Parameters</h4>
4066<table class="list"><tbody>
4067<tr><th>ipp</th>
4068 <td class="description">IPP message</td></tr>
4069<tr><th>group</th>
4070 <td class="description">IPP group</td></tr>
4071<tr><th>value_tag</th>
4072 <td class="description">Type of attribute</td></tr>
4073<tr><th>name</th>
4074 <td class="description">Name of attribute</td></tr>
4075<tr><th>num_values</th>
4076 <td class="description">Number of values</td></tr>
4077<tr><th>values</th>
4078 <td class="description">Values</td></tr>
4079</tbody></table>
798d6e29
MS
4080<h4 class="returnvalue">Return Value</h4>
4081 <p class="description">New attribute</p>
4082<h4 class="discussion">Discussion</h4>
4083 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4084the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4085<br>
4086The <code>group</code> parameter specifies the IPP attribute group tag: none
4087(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4088event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4089(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4090(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4091<br>
4092Supported values include enum (<code>IPP_TAG_ENUM</code>) and integer
4093(<code>IPP_TAG_INTEGER</code>).</p>
4094<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippAddOctetString">ippAddOctetString</a></h3>
4095 <p class="description">Add an octetString value to an IPP message.</p>
4096<p class="code">
98d88c8d
MS
4097<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddOctetString(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, const void *data, int datalen);</p>
4098<h4 class="parameters">Parameters</h4>
4099<table class="list"><tbody>
4100<tr><th>ipp</th>
4101 <td class="description">IPP message</td></tr>
4102<tr><th>group</th>
4103 <td class="description">IPP group</td></tr>
4104<tr><th>name</th>
4105 <td class="description">Name of attribute</td></tr>
4106<tr><th>data</th>
4107 <td class="description">octetString data</td></tr>
4108<tr><th>datalen</th>
4109 <td class="description">Length of data in bytes</td></tr>
4110</tbody></table>
798d6e29
MS
4111<h4 class="returnvalue">Return Value</h4>
4112 <p class="description">New attribute</p>
4113<h4 class="discussion">Discussion</h4>
4114 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4115the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4116<br>
4117The <code>group</code> parameter specifies the IPP attribute group tag: none
4118(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4119event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4120(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4121(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).
4122
4123</p>
4124<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippAddOutOfBand">ippAddOutOfBand</a></h3>
4125 <p class="description">Add an out-of-band value to an IPP message.</p>
4126<p class="code">
98d88c8d
MS
4127<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddOutOfBand(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name);</p>
4128<h4 class="parameters">Parameters</h4>
4129<table class="list"><tbody>
4130<tr><th>ipp</th>
4131 <td class="description">IPP message</td></tr>
4132<tr><th>group</th>
4133 <td class="description">IPP group</td></tr>
4134<tr><th>value_tag</th>
4135 <td class="description">Type of attribute</td></tr>
4136<tr><th>name</th>
4137 <td class="description">Name of attribute</td></tr>
4138</tbody></table>
798d6e29
MS
4139<h4 class="returnvalue">Return Value</h4>
4140 <p class="description">New attribute</p>
4141<h4 class="discussion">Discussion</h4>
4142 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4143the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4144<br>
4145The <code>group</code> parameter specifies the IPP attribute group tag: none
4146(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4147event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4148(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4149(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4150<br>
4151Supported out-of-band values include unsupported-value
4152(<code>IPP_TAG_UNSUPPORTED_VALUE</code>), default (<code>IPP_TAG_DEFAULT</code>), unknown
4153(<code>IPP_TAG_UNKNOWN</code>), no-value (<code>IPP_TAG_NOVALUE</code>), not-settable
4154(<code>IPP_TAG_NOTSETTABLE</code>), delete-attribute (<code>IPP_TAG_DELETEATTR</code>), and
4155admin-define (<code>IPP_TAG_ADMINDEFINE</code>).
4156
4157</p>
4158<h3 class="function"><a id="ippAddRange">ippAddRange</a></h3>
4159 <p class="description">Add a range of values to an IPP message.</p>
4160<p class="code">
98d88c8d
MS
4161<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddRange(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, int lower, int upper);</p>
4162<h4 class="parameters">Parameters</h4>
4163<table class="list"><tbody>
4164<tr><th>ipp</th>
4165 <td class="description">IPP message</td></tr>
4166<tr><th>group</th>
4167 <td class="description">IPP group</td></tr>
4168<tr><th>name</th>
4169 <td class="description">Name of attribute</td></tr>
4170<tr><th>lower</th>
4171 <td class="description">Lower value</td></tr>
4172<tr><th>upper</th>
4173 <td class="description">Upper value</td></tr>
4174</tbody></table>
798d6e29
MS
4175<h4 class="returnvalue">Return Value</h4>
4176 <p class="description">New attribute</p>
4177<h4 class="discussion">Discussion</h4>
4178 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4179the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4180<br>
4181The <code>group</code> parameter specifies the IPP attribute group tag: none
4182(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4183event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4184(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4185(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4186<br>
4187The <code>lower</code> parameter must be less than or equal to the <code>upper</code> parameter.</p>
4188<h3 class="function"><a id="ippAddRanges">ippAddRanges</a></h3>
4189 <p class="description">Add ranges of values to an IPP message.</p>
4190<p class="code">
98d88c8d
MS
4191<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddRanges(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, int num_values, const int *lower, const int *upper);</p>
4192<h4 class="parameters">Parameters</h4>
4193<table class="list"><tbody>
4194<tr><th>ipp</th>
4195 <td class="description">IPP message</td></tr>
4196<tr><th>group</th>
4197 <td class="description">IPP group</td></tr>
4198<tr><th>name</th>
4199 <td class="description">Name of attribute</td></tr>
4200<tr><th>num_values</th>
4201 <td class="description">Number of values</td></tr>
4202<tr><th>lower</th>
4203 <td class="description">Lower values</td></tr>
4204<tr><th>upper</th>
4205 <td class="description">Upper values</td></tr>
4206</tbody></table>
798d6e29
MS
4207<h4 class="returnvalue">Return Value</h4>
4208 <p class="description">New attribute</p>
4209<h4 class="discussion">Discussion</h4>
4210 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4211the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4212<br>
4213The <code>group</code> parameter specifies the IPP attribute group tag: none
4214(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4215event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4216(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4217(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
4218<h3 class="function"><a id="ippAddResolution">ippAddResolution</a></h3>
4219 <p class="description">Add a resolution value to an IPP message.</p>
4220<p class="code">
98d88c8d
MS
4221<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddResolution(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, <a href="#ipp_res_t">ipp_res_t</a> units, int xres, int yres);</p>
4222<h4 class="parameters">Parameters</h4>
4223<table class="list"><tbody>
4224<tr><th>ipp</th>
4225 <td class="description">IPP message</td></tr>
4226<tr><th>group</th>
4227 <td class="description">IPP group</td></tr>
4228<tr><th>name</th>
4229 <td class="description">Name of attribute</td></tr>
4230<tr><th>units</th>
4231 <td class="description">Units for resolution</td></tr>
4232<tr><th>xres</th>
4233 <td class="description">X resolution</td></tr>
4234<tr><th>yres</th>
4235 <td class="description">Y resolution</td></tr>
4236</tbody></table>
798d6e29
MS
4237<h4 class="returnvalue">Return Value</h4>
4238 <p class="description">New attribute</p>
4239<h4 class="discussion">Discussion</h4>
4240 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4241the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4242<br>
4243The <code>group</code> parameter specifies the IPP attribute group tag: none
4244(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4245event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4246(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4247(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
4248<h3 class="function"><a id="ippAddResolutions">ippAddResolutions</a></h3>
4249 <p class="description">Add resolution values to an IPP message.</p>
4250<p class="code">
98d88c8d
MS
4251<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddResolutions(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, const char *name, int num_values, <a href="#ipp_res_t">ipp_res_t</a> units, const int *xres, const int *yres);</p>
4252<h4 class="parameters">Parameters</h4>
4253<table class="list"><tbody>
4254<tr><th>ipp</th>
4255 <td class="description">IPP message</td></tr>
4256<tr><th>group</th>
4257 <td class="description">IPP group</td></tr>
4258<tr><th>name</th>
4259 <td class="description">Name of attribute</td></tr>
4260<tr><th>num_values</th>
4261 <td class="description">Number of values</td></tr>
4262<tr><th>units</th>
4263 <td class="description">Units for resolution</td></tr>
4264<tr><th>xres</th>
4265 <td class="description">X resolutions</td></tr>
4266<tr><th>yres</th>
4267 <td class="description">Y resolutions</td></tr>
4268</tbody></table>
798d6e29
MS
4269<h4 class="returnvalue">Return Value</h4>
4270 <p class="description">New attribute</p>
4271<h4 class="discussion">Discussion</h4>
4272 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4273the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4274<br>
4275The <code>group</code> parameter specifies the IPP attribute group tag: none
4276(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4277event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4278(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4279(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).</p>
4280<h3 class="function"><a id="ippAddSeparator">ippAddSeparator</a></h3>
4281 <p class="description">Add a group separator to an IPP message.</p>
4282<p class="code">
98d88c8d 4283<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddSeparator(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4284<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4285<table class="list"><tbody>
4286<tr><th>ipp</th>
4287 <td class="description">IPP message</td></tr>
4288</tbody></table>
798d6e29
MS
4289<h4 class="returnvalue">Return Value</h4>
4290 <p class="description">New attribute</p>
4291<h4 class="discussion">Discussion</h4>
4292 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4293the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.</p>
4294<h3 class="function"><a id="ippAddString">ippAddString</a></h3>
4295 <p class="description">Add a language-encoded string to an IPP message.</p>
4296<p class="code">
98d88c8d
MS
4297<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddString(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, const char *language, const char *value);</p>
4298<h4 class="parameters">Parameters</h4>
4299<table class="list"><tbody>
4300<tr><th>ipp</th>
4301 <td class="description">IPP message</td></tr>
4302<tr><th>group</th>
4303 <td class="description">IPP group</td></tr>
4304<tr><th>value_tag</th>
4305 <td class="description">Type of attribute</td></tr>
4306<tr><th>name</th>
4307 <td class="description">Name of attribute</td></tr>
4308<tr><th>language</th>
4309 <td class="description">Language code</td></tr>
4310<tr><th>value</th>
4311 <td class="description">Value</td></tr>
4312</tbody></table>
798d6e29
MS
4313<h4 class="returnvalue">Return Value</h4>
4314 <p class="description">New attribute</p>
4315<h4 class="discussion">Discussion</h4>
4316 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4317the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4318<br>
4319The <code>group</code> parameter specifies the IPP attribute group tag: none
4320(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4321event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4322(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4323(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4324<br>
4325Supported string values include charset (<code>IPP_TAG_CHARSET</code>), keyword
4326(<code>IPP_TAG_KEYWORD</code>), language (<code>IPP_TAG_LANGUAGE</code>), mimeMediaType
4327(<code>IPP_TAG_MIMETYPE</code>), name (<code>IPP_TAG_NAME</code>), nameWithLanguage
4328(<code>IPP_TAG_NAMELANG), text (</code>code IPP_TAG_TEXT@), textWithLanguage
4329(<code>IPP_TAG_TEXTLANG</code>), uri (<code>IPP_TAG_URI</code>), and uriScheme
4330(<code>IPP_TAG_URISCHEME</code>).<br>
4331<br>
4332The <code>language</code> parameter must be non-<code>NULL</code> for nameWithLanguage and
4333textWithLanguage string values and must be <code>NULL</code> for all other string values.</p>
4334<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippAddStringf">ippAddStringf</a></h3>
4335 <p class="description">Add a formatted string to an IPP message.</p>
4336<p class="code">
98d88c8d
MS
4337<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddStringf(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, const char *language, const char *format, ...);</p>
4338<h4 class="parameters">Parameters</h4>
4339<table class="list"><tbody>
4340<tr><th>ipp</th>
4341 <td class="description">IPP message</td></tr>
4342<tr><th>group</th>
4343 <td class="description">IPP group</td></tr>
4344<tr><th>value_tag</th>
4345 <td class="description">Type of attribute</td></tr>
4346<tr><th>name</th>
4347 <td class="description">Name of attribute</td></tr>
4348<tr><th>language</th>
4349 <td class="description">Language code (<code>NULL</code> for default)</td></tr>
4350<tr><th>format</th>
4351 <td class="description">Printf-style format string</td></tr>
4352<tr><th>...</th>
4353 <td class="description">Additional arguments as needed</td></tr>
4354</tbody></table>
798d6e29
MS
4355<h4 class="returnvalue">Return Value</h4>
4356 <p class="description">New attribute</p>
4357<h4 class="discussion">Discussion</h4>
4358 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4359the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4360<br>
4361The <code>group</code> parameter specifies the IPP attribute group tag: none
4362(<code>IPP_TAG_ZERO</code>, for member attributes), document
4363(<code>IPP_TAG_DOCUMENT</code>), event notification
4364(<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation (<code>IPP_TAG_OPERATION</code>),
4365printer (<code>IPP_TAG_PRINTER</code>), subscription (<code>IPP_TAG_SUBSCRIPTION</code>),
4366or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4367<br>
4368Supported string values include charset (<code>IPP_TAG_CHARSET</code>), keyword
4369(<code>IPP_TAG_KEYWORD</code>), language (<code>IPP_TAG_LANGUAGE</code>), mimeMediaType
4370(<code>IPP_TAG_MIMETYPE</code>), name (<code>IPP_TAG_NAME</code>), nameWithLanguage
4371(<code>IPP_TAG_NAMELANG), text (</code>code IPP_TAG_TEXT@), textWithLanguage
4372(<code>IPP_TAG_TEXTLANG</code>), uri (<code>IPP_TAG_URI</code>), and uriScheme
4373(<code>IPP_TAG_URISCHEME</code>).<br>
4374<br>
4375The <code>language</code> parameter must be non-<code>NULL</code> for nameWithLanguage
4376and textWithLanguage string values and must be <code>NULL</code> for all other
4377string values.<br>
4378<br>
4379The <code>format</code> parameter uses formatting characters compatible with the
4380printf family of standard functions. Additional arguments follow it as
4381needed. The formatted string is truncated as needed to the maximum length of
4382the corresponding value type.
4383
4384</p>
4385<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippAddStringfv">ippAddStringfv</a></h3>
4386 <p class="description">Add a formatted string to an IPP message.</p>
4387<p class="code">
98d88c8d
MS
4388<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddStringfv(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, const char *language, const char *format, va_list ap);</p>
4389<h4 class="parameters">Parameters</h4>
4390<table class="list"><tbody>
4391<tr><th>ipp</th>
4392 <td class="description">IPP message</td></tr>
4393<tr><th>group</th>
4394 <td class="description">IPP group</td></tr>
4395<tr><th>value_tag</th>
4396 <td class="description">Type of attribute</td></tr>
4397<tr><th>name</th>
4398 <td class="description">Name of attribute</td></tr>
4399<tr><th>language</th>
4400 <td class="description">Language code (<code>NULL</code> for default)</td></tr>
4401<tr><th>format</th>
4402 <td class="description">Printf-style format string</td></tr>
4403<tr><th>ap</th>
4404 <td class="description">Additional arguments</td></tr>
4405</tbody></table>
798d6e29
MS
4406<h4 class="returnvalue">Return Value</h4>
4407 <p class="description">New attribute</p>
4408<h4 class="discussion">Discussion</h4>
4409 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4410the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4411<br>
4412The <code>group</code> parameter specifies the IPP attribute group tag: none
4413(<code>IPP_TAG_ZERO</code>, for member attributes), document
4414(<code>IPP_TAG_DOCUMENT</code>), event notification
4415(<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation (<code>IPP_TAG_OPERATION</code>),
4416printer (<code>IPP_TAG_PRINTER</code>), subscription (<code>IPP_TAG_SUBSCRIPTION</code>),
4417or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4418<br>
4419Supported string values include charset (<code>IPP_TAG_CHARSET</code>), keyword
4420(<code>IPP_TAG_KEYWORD</code>), language (<code>IPP_TAG_LANGUAGE</code>), mimeMediaType
4421(<code>IPP_TAG_MIMETYPE</code>), name (<code>IPP_TAG_NAME</code>), nameWithLanguage
4422(<code>IPP_TAG_NAMELANG), text (</code>code IPP_TAG_TEXT@), textWithLanguage
4423(<code>IPP_TAG_TEXTLANG</code>), uri (<code>IPP_TAG_URI</code>), and uriScheme
4424(<code>IPP_TAG_URISCHEME</code>).<br>
4425<br>
4426The <code>language</code> parameter must be non-<code>NULL</code> for nameWithLanguage
4427and textWithLanguage string values and must be <code>NULL</code> for all other
4428string values.<br>
4429<br>
4430The <code>format</code> parameter uses formatting characters compatible with the
4431printf family of standard functions. Additional arguments are passed in the
4432stdarg pointer <code>ap</code>. The formatted string is truncated as needed to the
4433maximum length of the corresponding value type.
4434
4435</p>
4436<h3 class="function"><a id="ippAddStrings">ippAddStrings</a></h3>
4437 <p class="description">Add language-encoded strings to an IPP message.</p>
4438<p class="code">
98d88c8d
MS
4439<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippAddStrings(<a href="#ipp_t">ipp_t</a> *ipp, ipp_tag_t group, ipp_tag_t value_tag, const char *name, int num_values, const char *language, const char *const *values);</p>
4440<h4 class="parameters">Parameters</h4>
4441<table class="list"><tbody>
4442<tr><th>ipp</th>
4443 <td class="description">IPP message</td></tr>
4444<tr><th>group</th>
4445 <td class="description">IPP group</td></tr>
4446<tr><th>value_tag</th>
4447 <td class="description">Type of attribute</td></tr>
4448<tr><th>name</th>
4449 <td class="description">Name of attribute</td></tr>
4450<tr><th>num_values</th>
4451 <td class="description">Number of values</td></tr>
4452<tr><th>language</th>
4453 <td class="description">Language code (<code>NULL</code> for default)</td></tr>
4454<tr><th>values</th>
4455 <td class="description">Values</td></tr>
4456</tbody></table>
798d6e29
MS
4457<h4 class="returnvalue">Return Value</h4>
4458 <p class="description">New attribute</p>
4459<h4 class="discussion">Discussion</h4>
4460 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
4461the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
4462<br>
4463The <code>group</code> parameter specifies the IPP attribute group tag: none
4464(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
4465event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
4466(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
4467(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).<br>
4468<br>
4469Supported string values include charset (<code>IPP_TAG_CHARSET</code>), keyword
4470(<code>IPP_TAG_KEYWORD</code>), language (<code>IPP_TAG_LANGUAGE</code>), mimeMediaType
4471(<code>IPP_TAG_MIMETYPE</code>), name (<code>IPP_TAG_NAME</code>), nameWithLanguage
4472(<code>IPP_TAG_NAMELANG), text (</code>code IPP_TAG_TEXT@), textWithLanguage
4473(<code>IPP_TAG_TEXTLANG</code>), uri (<code>IPP_TAG_URI</code>), and uriScheme
4474(<code>IPP_TAG_URISCHEME</code>).<br>
4475<br>
4476The <code>language</code> parameter must be non-<code>NULL</code> for nameWithLanguage and
4477textWithLanguage string values and must be <code>NULL</code> for all other string values.</p>
4478<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippAttributeString">ippAttributeString</a></h3>
4479 <p class="description">Convert the attribute's value to a string.</p>
4480<p class="code">
98d88c8d
MS
4481size_t ippAttributeString(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, char *buffer, size_t bufsize);</p>
4482<h4 class="parameters">Parameters</h4>
4483<table class="list"><tbody>
4484<tr><th>attr</th>
4485 <td class="description">Attribute</td></tr>
4486<tr><th>buffer</th>
4487 <td class="description">String buffer or NULL</td></tr>
4488<tr><th>bufsize</th>
4489 <td class="description">Size of string buffer</td></tr>
4490</tbody></table>
798d6e29
MS
4491<h4 class="returnvalue">Return Value</h4>
4492 <p class="description">Number of bytes less nul</p>
4493<h4 class="discussion">Discussion</h4>
4494 <p class="discussion">Returns the number of bytes that would be written, not including the
4495trailing nul. The buffer pointer can be NULL to get the required length,
4496just like (v)snprintf.
4497
4498</p>
4499<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippContainsInteger">ippContainsInteger</a></h3>
4500 <p class="description">Determine whether an attribute contains the
4501specified value or is within the list of ranges.</p>
4502<p class="code">
98d88c8d 4503int ippContainsInteger(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int value);</p>
798d6e29 4504<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4505<table class="list"><tbody>
4506<tr><th>attr</th>
4507 <td class="description">Attribute</td></tr>
4508<tr><th>value</th>
4509 <td class="description">Integer/enum value</td></tr>
4510</tbody></table>
798d6e29
MS
4511<h4 class="returnvalue">Return Value</h4>
4512 <p class="description">1 on a match, 0 on no match</p>
4513<h4 class="discussion">Discussion</h4>
4514 <p class="discussion">Returns non-zero when the attribute contains either a matching integer or
4515enum value, or the value falls within one of the rangeOfInteger values for
4516the attribute.
4517
4518</p>
4519<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippContainsString">ippContainsString</a></h3>
4520 <p class="description">Determine whether an attribute contains the
4521specified string value.</p>
4522<p class="code">
98d88c8d 4523int ippContainsString(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, const char *value);</p>
798d6e29 4524<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4525<table class="list"><tbody>
4526<tr><th>attr</th>
4527 <td class="description">Attribute</td></tr>
4528<tr><th>value</th>
4529 <td class="description">String value</td></tr>
4530</tbody></table>
798d6e29
MS
4531<h4 class="returnvalue">Return Value</h4>
4532 <p class="description">1 on a match, 0 on no match</p>
4533<h4 class="discussion">Discussion</h4>
4534 <p class="discussion">Returns non-zero when the attribute contains a matching charset, keyword,
65bebeac 4535naturalLanguage, mimeMediaType, name, text, uri, or uriScheme value.
798d6e29
MS
4536
4537</p>
4538<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippCopyAttribute">ippCopyAttribute</a></h3>
4539 <p class="description">Copy an attribute.</p>
4540<p class="code">
98d88c8d
MS
4541<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippCopyAttribute(<a href="#ipp_t">ipp_t</a> *dst, <a href="#ipp_attribute_t">ipp_attribute_t</a> *srcattr, int quickcopy);</p>
4542<h4 class="parameters">Parameters</h4>
4543<table class="list"><tbody>
4544<tr><th>dst</th>
4545 <td class="description">Destination IPP message</td></tr>
4546<tr><th>srcattr</th>
4547 <td class="description">Attribute to copy</td></tr>
4548<tr><th>quickcopy</th>
4549 <td class="description">1 for a referenced copy, 0 for normal</td></tr>
4550</tbody></table>
798d6e29
MS
4551<h4 class="returnvalue">Return Value</h4>
4552 <p class="description">New attribute</p>
4553<h4 class="discussion">Discussion</h4>
4554 <p class="discussion">The specified attribute, <code>attr</code>, is copied to the destination IPP message.
4555When <code>quickcopy</code> is non-zero, a &quot;shallow&quot; reference copy of the attribute is
4556created - this should only be done as long as the original source IPP message will
4557not be freed for the life of the destination.
4558
4559</p>
4560<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippCopyAttributes">ippCopyAttributes</a></h3>
4561 <p class="description">Copy attributes from one IPP message to another.</p>
4562<p class="code">
98d88c8d
MS
4563int ippCopyAttributes(<a href="#ipp_t">ipp_t</a> *dst, <a href="#ipp_t">ipp_t</a> *src, int quickcopy, <a href="#ipp_copycb_t">ipp_copycb_t</a> cb, void *context);</p>
4564<h4 class="parameters">Parameters</h4>
4565<table class="list"><tbody>
4566<tr><th>dst</th>
4567 <td class="description">Destination IPP message</td></tr>
4568<tr><th>src</th>
4569 <td class="description">Source IPP message</td></tr>
4570<tr><th>quickcopy</th>
4571 <td class="description">1 for a referenced copy, 0 for normal</td></tr>
4572<tr><th>cb</th>
4573 <td class="description">Copy callback or <code>NULL</code> for none</td></tr>
4574<tr><th>context</th>
4575 <td class="description">Context pointer</td></tr>
4576</tbody></table>
798d6e29
MS
4577<h4 class="returnvalue">Return Value</h4>
4578 <p class="description">1 on success, 0 on error</p>
4579<h4 class="discussion">Discussion</h4>
4580 <p class="discussion">Zero or more attributes are copied from the source IPP message, <code>src</code>, to the
4581destination IPP message, <code>dst</code>. When <code>quickcopy</code> is non-zero, a &quot;shallow&quot;
4582reference copy of the attribute is created - this should only be done as long as the
4583original source IPP message will not be freed for the life of the destination.<br>
4584<br>
4585The <code>cb</code> and <code>context</code> parameters provide a generic way to &quot;filter&quot; the
4586attributes that are copied - the function must return 1 to copy the attribute or
45870 to skip it. The function may also choose to do a partial copy of the source attribute
4588itself.
4589
4590</p>
4591<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippCreateRequestedArray">ippCreateRequestedArray</a></h3>
4592 <p class="description">Create a CUPS array of attribute names from the
4593given requested-attributes attribute.</p>
4594<p class="code">
98d88c8d 4595cups_array_t *ippCreateRequestedArray(<a href="#ipp_t">ipp_t</a> *request);</p>
798d6e29 4596<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4597<table class="list"><tbody>
4598<tr><th>request</th>
4599 <td class="description">IPP request</td></tr>
4600</tbody></table>
798d6e29
MS
4601<h4 class="returnvalue">Return Value</h4>
4602 <p class="description">CUPS array or <code>NULL</code> if all</p>
4603<h4 class="discussion">Discussion</h4>
4604 <p class="discussion">This function creates a (sorted) CUPS array of attribute names matching the
4605list of &quot;requested-attribute&quot; values supplied in an IPP request. All IANA-
4606registered values are supported in addition to the CUPS IPP extension
4607attributes.<br>
4608<br>
4609The <code>request</code> parameter specifies the request message that was read from
4610the client.
4611
4612<code>NULL</code> is returned if all attributes should be returned. Otherwise, the
4613result is a sorted array of attribute names, where <code>cupsArrayFind(array,
4614"attribute-name")</code> will return a non-NULL pointer. The array must be freed
4615using the <code>cupsArrayDelete</code> function.
4616
4617</p>
4618<h3 class="function"><a id="ippDateToTime">ippDateToTime</a></h3>
65bebeac
MS
4619 <p class="description">Convert from RFC 2579 Date/Time format to time in
4620seconds.</p>
798d6e29 4621<p class="code">
98d88c8d 4622time_t ippDateToTime(const <a href="#ipp_uchar_t">ipp_uchar_t</a> *date);</p>
798d6e29 4623<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4624<table class="list"><tbody>
4625<tr><th>date</th>
65bebeac 4626 <td class="description">RFC 2579 date info</td></tr>
98d88c8d 4627</tbody></table>
798d6e29
MS
4628<h4 class="returnvalue">Return Value</h4>
4629 <p class="description">UNIX time value</p>
4630<h3 class="function"><a id="ippDelete">ippDelete</a></h3>
98d88c8d 4631 <p class="description">Delete an IPP message.</p>
798d6e29 4632<p class="code">
98d88c8d 4633void ippDelete(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4634<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4635<table class="list"><tbody>
4636<tr><th>ipp</th>
4637 <td class="description">IPP message</td></tr>
4638</tbody></table>
4639<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="ippDeleteAttribute">ippDeleteAttribute</a></h3>
53af7f21 4640 <p class="description">Delete a single attribute in an IPP message.</p>
98d88c8d
MS
4641<p class="code">
4642void ippDeleteAttribute(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
4643<h4 class="parameters">Parameters</h4>
4644<table class="list"><tbody>
4645<tr><th>ipp</th>
4646 <td class="description">IPP message</td></tr>
4647<tr><th>attr</th>
4648 <td class="description">Attribute to delete</td></tr>
4649</tbody></table>
798d6e29
MS
4650<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippDeleteValues">ippDeleteValues</a></h3>
4651 <p class="description">Delete values in an attribute.</p>
4652<p class="code">
98d88c8d
MS
4653int ippDeleteValues(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, int count);</p>
4654<h4 class="parameters">Parameters</h4>
4655<table class="list"><tbody>
4656<tr><th>ipp</th>
4657 <td class="description">IPP message</td></tr>
4658<tr><th>attr</th>
4659 <td class="description">Attribute</td></tr>
4660<tr><th>element</th>
4661 <td class="description">Index of first value to delete (0-based)</td></tr>
4662<tr><th>count</th>
4663 <td class="description">Number of values to delete</td></tr>
4664</tbody></table>
798d6e29
MS
4665<h4 class="returnvalue">Return Value</h4>
4666 <p class="description">1 on success, 0 on failure</p>
4667<h4 class="discussion">Discussion</h4>
4668 <p class="discussion">The <code>element</code> parameter specifies the first value to delete, starting at
46690. It must be less than the number of values returned by <a href="#ippGetCount"><code>ippGetCount</code></a>.<br>
4670<br>
4671The <code>attr</code> parameter may be modified as a result of setting the value.<br>
4672<br>
4673Deleting all values in an attribute deletes the attribute.
4674
4675</p>
4676<h3 class="function"><a id="ippEnumString">ippEnumString</a></h3>
4677 <p class="description">Return a string corresponding to the enum value.</p>
4678<p class="code">
98d88c8d 4679const char *ippEnumString(const char *attrname, int enumvalue);</p>
798d6e29 4680<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4681<table class="list"><tbody>
4682<tr><th>attrname</th>
4683 <td class="description">Attribute name</td></tr>
4684<tr><th>enumvalue</th>
4685 <td class="description">Enum value</td></tr>
4686</tbody></table>
798d6e29
MS
4687<h4 class="returnvalue">Return Value</h4>
4688 <p class="description">Enum string</p>
4689<h3 class="function"><a id="ippEnumValue">ippEnumValue</a></h3>
4690 <p class="description">Return the value associated with a given enum string.</p>
4691<p class="code">
98d88c8d 4692int ippEnumValue(const char *attrname, const char *enumstring);</p>
798d6e29 4693<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4694<table class="list"><tbody>
4695<tr><th>attrname</th>
4696 <td class="description">Attribute name</td></tr>
4697<tr><th>enumstring</th>
4698 <td class="description">Enum string</td></tr>
4699</tbody></table>
798d6e29
MS
4700<h4 class="returnvalue">Return Value</h4>
4701 <p class="description">Enum value or -1 if unknown</p>
4702<h3 class="function"><a id="ippErrorString">ippErrorString</a></h3>
4703 <p class="description">Return a name for the given status code.</p>
4704<p class="code">
98d88c8d 4705const char *ippErrorString(ipp_status_t error);</p>
798d6e29 4706<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4707<table class="list"><tbody>
4708<tr><th>error</th>
4709 <td class="description">Error status</td></tr>
4710</tbody></table>
798d6e29
MS
4711<h4 class="returnvalue">Return Value</h4>
4712 <p class="description">Text string</p>
4713<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippErrorValue">ippErrorValue</a></h3>
4714 <p class="description">Return a status code for the given name.</p>
4715<p class="code">
98d88c8d 4716ipp_status_t ippErrorValue(const char *name);</p>
798d6e29 4717<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4718<table class="list"><tbody>
4719<tr><th>name</th>
4720 <td class="description">Name</td></tr>
4721</tbody></table>
798d6e29
MS
4722<h4 class="returnvalue">Return Value</h4>
4723 <p class="description">IPP status code</p>
4724<h3 class="function"><a id="ippFindAttribute">ippFindAttribute</a></h3>
4725 <p class="description">Find a named attribute in a request.</p>
4726<p class="code">
98d88c8d
MS
4727<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippFindAttribute(<a href="#ipp_t">ipp_t</a> *ipp, const char *name, ipp_tag_t type);</p>
4728<h4 class="parameters">Parameters</h4>
4729<table class="list"><tbody>
4730<tr><th>ipp</th>
4731 <td class="description">IPP message</td></tr>
4732<tr><th>name</th>
4733 <td class="description">Name of attribute</td></tr>
4734<tr><th>type</th>
4735 <td class="description">Type of attribute</td></tr>
4736</tbody></table>
798d6e29
MS
4737<h4 class="returnvalue">Return Value</h4>
4738 <p class="description">Matching attribute</p>
4739<h4 class="discussion">Discussion</h4>
4740 <p class="discussion">Starting with CUPS 2.0, the attribute name can contain a hierarchical list
4741of attribute and member names separated by slashes, for example
4742&quot;media-col/media-size&quot;.</p>
4743<h3 class="function"><a id="ippFindNextAttribute">ippFindNextAttribute</a></h3>
4744 <p class="description">Find the next named attribute in a request.</p>
4745<p class="code">
98d88c8d
MS
4746<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippFindNextAttribute(<a href="#ipp_t">ipp_t</a> *ipp, const char *name, ipp_tag_t type);</p>
4747<h4 class="parameters">Parameters</h4>
4748<table class="list"><tbody>
4749<tr><th>ipp</th>
4750 <td class="description">IPP message</td></tr>
4751<tr><th>name</th>
4752 <td class="description">Name of attribute</td></tr>
4753<tr><th>type</th>
4754 <td class="description">Type of attribute</td></tr>
4755</tbody></table>
798d6e29
MS
4756<h4 class="returnvalue">Return Value</h4>
4757 <p class="description">Matching attribute</p>
4758<h4 class="discussion">Discussion</h4>
4759 <p class="discussion">Starting with CUPS 2.0, the attribute name can contain a hierarchical list
4760of attribute and member names separated by slashes, for example
4761&quot;media-col/media-size&quot;.</p>
4762<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippFirstAttribute">ippFirstAttribute</a></h3>
4763 <p class="description">Return the first attribute in the message.</p>
4764<p class="code">
98d88c8d 4765<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippFirstAttribute(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4766<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4767<table class="list"><tbody>
4768<tr><th>ipp</th>
4769 <td class="description">IPP message</td></tr>
4770</tbody></table>
798d6e29
MS
4771<h4 class="returnvalue">Return Value</h4>
4772 <p class="description">First attribute or <code>NULL</code> if none</p>
4773<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetBoolean">ippGetBoolean</a></h3>
4774 <p class="description">Get a boolean value for an attribute.</p>
4775<p class="code">
98d88c8d 4776int ippGetBoolean(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element);</p>
798d6e29 4777<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4778<table class="list"><tbody>
4779<tr><th>attr</th>
4780 <td class="description">IPP attribute</td></tr>
4781<tr><th>element</th>
4782 <td class="description">Value number (0-based)</td></tr>
4783</tbody></table>
798d6e29
MS
4784<h4 class="returnvalue">Return Value</h4>
4785 <p class="description">Boolean value or 0 on error</p>
4786<h4 class="discussion">Discussion</h4>
4787 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4788<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4789
4790</p>
4791<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetCollection">ippGetCollection</a></h3>
4792 <p class="description">Get a collection value for an attribute.</p>
4793<p class="code">
98d88c8d 4794<a href="#ipp_t">ipp_t</a> *ippGetCollection(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element);</p>
798d6e29 4795<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4796<table class="list"><tbody>
4797<tr><th>attr</th>
4798 <td class="description">IPP attribute</td></tr>
4799<tr><th>element</th>
4800 <td class="description">Value number (0-based)</td></tr>
4801</tbody></table>
798d6e29
MS
4802<h4 class="returnvalue">Return Value</h4>
4803 <p class="description">Collection value or <code>NULL</code> on error</p>
4804<h4 class="discussion">Discussion</h4>
4805 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4806<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4807
4808</p>
4809<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetCount">ippGetCount</a></h3>
4810 <p class="description">Get the number of values in an attribute.</p>
4811<p class="code">
98d88c8d 4812int ippGetCount(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
798d6e29 4813<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4814<table class="list"><tbody>
4815<tr><th>attr</th>
4816 <td class="description">IPP attribute</td></tr>
4817</tbody></table>
798d6e29
MS
4818<h4 class="returnvalue">Return Value</h4>
4819 <p class="description">Number of values or 0 on error</p>
4820<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetDate">ippGetDate</a></h3>
65bebeac 4821 <p class="description">Get a dateTime value for an attribute.</p>
798d6e29 4822<p class="code">
98d88c8d 4823const <a href="#ipp_uchar_t">ipp_uchar_t</a> *ippGetDate(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element);</p>
798d6e29 4824<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4825<table class="list"><tbody>
4826<tr><th>attr</th>
4827 <td class="description">IPP attribute</td></tr>
4828<tr><th>element</th>
4829 <td class="description">Value number (0-based)</td></tr>
4830</tbody></table>
798d6e29 4831<h4 class="returnvalue">Return Value</h4>
65bebeac 4832 <p class="description">dateTime value or <code>NULL</code></p>
798d6e29
MS
4833<h4 class="discussion">Discussion</h4>
4834 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4835<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4836
4837</p>
4838<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetGroupTag">ippGetGroupTag</a></h3>
4839 <p class="description">Get the group associated with an attribute.</p>
4840<p class="code">
98d88c8d 4841ipp_tag_t ippGetGroupTag(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
798d6e29 4842<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4843<table class="list"><tbody>
4844<tr><th>attr</th>
4845 <td class="description">IPP attribute</td></tr>
4846</tbody></table>
798d6e29
MS
4847<h4 class="returnvalue">Return Value</h4>
4848 <p class="description">Group tag or <code>IPP_TAG_ZERO</code> on error</p>
4849<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetInteger">ippGetInteger</a></h3>
4850 <p class="description">Get the integer/enum value for an attribute.</p>
4851<p class="code">
98d88c8d 4852int ippGetInteger(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element);</p>
798d6e29 4853<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4854<table class="list"><tbody>
4855<tr><th>attr</th>
4856 <td class="description">IPP attribute</td></tr>
4857<tr><th>element</th>
4858 <td class="description">Value number (0-based)</td></tr>
4859</tbody></table>
798d6e29
MS
4860<h4 class="returnvalue">Return Value</h4>
4861 <p class="description">Value or 0 on error</p>
4862<h4 class="discussion">Discussion</h4>
4863 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4864<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4865
4866</p>
4867<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetName">ippGetName</a></h3>
4868 <p class="description">Get the attribute name.</p>
4869<p class="code">
98d88c8d 4870const char *ippGetName(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
798d6e29 4871<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4872<table class="list"><tbody>
4873<tr><th>attr</th>
4874 <td class="description">IPP attribute</td></tr>
4875</tbody></table>
798d6e29
MS
4876<h4 class="returnvalue">Return Value</h4>
4877 <p class="description">Attribute name or <code>NULL</code> for separators</p>
4878<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippGetOctetString">ippGetOctetString</a></h3>
4879 <p class="description">Get an octetString value from an IPP attribute.</p>
4880<p class="code">
98d88c8d
MS
4881void *ippGetOctetString(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element, int *datalen);</p>
4882<h4 class="parameters">Parameters</h4>
4883<table class="list"><tbody>
4884<tr><th>attr</th>
4885 <td class="description">IPP attribute</td></tr>
4886<tr><th>element</th>
4887 <td class="description">Value number (0-based)</td></tr>
4888<tr><th>datalen</th>
4889 <td class="description">Length of octetString data</td></tr>
4890</tbody></table>
798d6e29
MS
4891<h4 class="returnvalue">Return Value</h4>
4892 <p class="description">Pointer to octetString data</p>
4893<h4 class="discussion">Discussion</h4>
4894 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4895<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4896
4897</p>
4898<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetOperation">ippGetOperation</a></h3>
4899 <p class="description">Get the operation ID in an IPP message.</p>
4900<p class="code">
98d88c8d 4901ipp_op_t ippGetOperation(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4902<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4903<table class="list"><tbody>
4904<tr><th>ipp</th>
4905 <td class="description">IPP request message</td></tr>
4906</tbody></table>
798d6e29
MS
4907<h4 class="returnvalue">Return Value</h4>
4908 <p class="description">Operation ID or 0 on error</p>
4909<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetRange">ippGetRange</a></h3>
4910 <p class="description">Get a rangeOfInteger value from an attribute.</p>
4911<p class="code">
98d88c8d
MS
4912int ippGetRange(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element, int *uppervalue);</p>
4913<h4 class="parameters">Parameters</h4>
4914<table class="list"><tbody>
4915<tr><th>attr</th>
4916 <td class="description">IPP attribute</td></tr>
4917<tr><th>element</th>
4918 <td class="description">Value number (0-based)</td></tr>
4919<tr><th>uppervalue</th>
4920 <td class="description">Upper value of range</td></tr>
4921</tbody></table>
798d6e29
MS
4922<h4 class="returnvalue">Return Value</h4>
4923 <p class="description">Lower value of range or 0</p>
4924<h4 class="discussion">Discussion</h4>
4925 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4926<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4927
4928</p>
4929<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetRequestId">ippGetRequestId</a></h3>
4930 <p class="description">Get the request ID from an IPP message.</p>
4931<p class="code">
98d88c8d 4932int ippGetRequestId(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4933<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4934<table class="list"><tbody>
4935<tr><th>ipp</th>
4936 <td class="description">IPP message</td></tr>
4937</tbody></table>
798d6e29
MS
4938<h4 class="returnvalue">Return Value</h4>
4939 <p class="description">Request ID or 0 on error</p>
4940<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetResolution">ippGetResolution</a></h3>
4941 <p class="description">Get a resolution value for an attribute.</p>
4942<p class="code">
98d88c8d
MS
4943int ippGetResolution(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element, int *yres, <a href="#ipp_res_t">ipp_res_t</a> *units);</p>
4944<h4 class="parameters">Parameters</h4>
4945<table class="list"><tbody>
4946<tr><th>attr</th>
4947 <td class="description">IPP attribute</td></tr>
4948<tr><th>element</th>
4949 <td class="description">Value number (0-based)</td></tr>
4950<tr><th>yres</th>
4951 <td class="description">Vertical/feed resolution</td></tr>
4952<tr><th>units</th>
4953 <td class="description">Units for resolution</td></tr>
4954</tbody></table>
798d6e29
MS
4955<h4 class="returnvalue">Return Value</h4>
4956 <p class="description">Horizontal/cross feed resolution or 0</p>
4957<h4 class="discussion">Discussion</h4>
4958 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 4959<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
4960
4961</p>
4962<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetState">ippGetState</a></h3>
4963 <p class="description">Get the IPP message state.</p>
4964<p class="code">
98d88c8d 4965<a href="#ipp_state_t">ipp_state_t</a> ippGetState(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4966<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4967<table class="list"><tbody>
4968<tr><th>ipp</th>
4969 <td class="description">IPP message</td></tr>
4970</tbody></table>
798d6e29
MS
4971<h4 class="returnvalue">Return Value</h4>
4972 <p class="description">IPP message state value</p>
4973<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetStatusCode">ippGetStatusCode</a></h3>
4974 <p class="description">Get the status code from an IPP response or event message.</p>
4975<p class="code">
98d88c8d 4976ipp_status_t ippGetStatusCode(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 4977<h4 class="parameters">Parameters</h4>
98d88c8d
MS
4978<table class="list"><tbody>
4979<tr><th>ipp</th>
4980 <td class="description">IPP response or event message</td></tr>
4981</tbody></table>
798d6e29
MS
4982<h4 class="returnvalue">Return Value</h4>
4983 <p class="description">Status code in IPP message</p>
4984<h3 class="function"><a id="ippGetString">ippGetString</a></h3>
98d88c8d
MS
4985 <p class="description"></p>
4986<p class="code">
4987const char *ippGetString(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr, int element, const char **language);</p>
4988<h4 class="parameters">Parameters</h4>
4989<table class="list"><tbody>
4990<tr><th>attr</th>
4991 <td class="description">IPP attribute</td></tr>
4992<tr><th>element</th>
4993 <td class="description">Value number (0-based)</td></tr>
4994<tr><th>language</th>
4995 <td class="description">Language code (<code>NULL</code> for don't care)</td></tr>
4996</tbody></table>
798d6e29
MS
4997<h4 class="returnvalue">Return Value</h4>
4998 <p class="description">Get the string and optionally the language code for an attribute.</p>
4999 <p class="discussion">The <code>element</code> parameter specifies which value to get from 0 to
65bebeac 5000<code>ippGetCount(attr)</code> - 1.
798d6e29
MS
5001
5002</p>
5003<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetValueTag">ippGetValueTag</a></h3>
5004 <p class="description">Get the value tag for an attribute.</p>
5005<p class="code">
98d88c8d 5006ipp_tag_t ippGetValueTag(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
798d6e29 5007<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5008<table class="list"><tbody>
5009<tr><th>attr</th>
5010 <td class="description">IPP attribute</td></tr>
5011</tbody></table>
798d6e29
MS
5012<h4 class="returnvalue">Return Value</h4>
5013 <p class="description">Value tag or <code>IPP_TAG_ZERO</code> on error</p>
5014<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippGetVersion">ippGetVersion</a></h3>
5015 <p class="description">Get the major and minor version number from an IPP message.</p>
5016<p class="code">
98d88c8d 5017int ippGetVersion(<a href="#ipp_t">ipp_t</a> *ipp, int *minor);</p>
798d6e29 5018<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5019<table class="list"><tbody>
5020<tr><th>ipp</th>
5021 <td class="description">IPP message</td></tr>
5022<tr><th>minor</th>
65bebeac 5023 <td class="description">Minor version number or <code>NULL</code> for don't care</td></tr>
98d88c8d 5024</tbody></table>
798d6e29
MS
5025<h4 class="returnvalue">Return Value</h4>
5026 <p class="description">Major version number or 0 on error</p>
5027<h3 class="function"><a id="ippLength">ippLength</a></h3>
5028 <p class="description">Compute the length of an IPP message.</p>
5029<p class="code">
98d88c8d 5030size_t ippLength(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5031<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5032<table class="list"><tbody>
5033<tr><th>ipp</th>
5034 <td class="description">IPP message</td></tr>
5035</tbody></table>
798d6e29
MS
5036<h4 class="returnvalue">Return Value</h4>
5037 <p class="description">Size of IPP message</p>
5038<h3 class="function"><a id="ippNew">ippNew</a></h3>
5039 <p class="description">Allocate a new IPP message.</p>
5040<p class="code">
98d88c8d 5041<a href="#ipp_t">ipp_t</a> *ippNew(void);</p>
798d6e29
MS
5042<h4 class="returnvalue">Return Value</h4>
5043 <p class="description">New IPP message</p>
5044<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippNewRequest">ippNewRequest</a></h3>
5045 <p class="description">Allocate a new IPP request message.</p>
5046<p class="code">
98d88c8d 5047<a href="#ipp_t">ipp_t</a> *ippNewRequest(ipp_op_t op);</p>
798d6e29 5048<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5049<table class="list"><tbody>
5050<tr><th>op</th>
5051 <td class="description">Operation code</td></tr>
5052</tbody></table>
798d6e29
MS
5053<h4 class="returnvalue">Return Value</h4>
5054 <p class="description">IPP request message</p>
5055<h4 class="discussion">Discussion</h4>
65bebeac
MS
5056 <p class="discussion">The new request message is initialized with the &quot;attributes-charset&quot; and
5057&quot;attributes-natural-language&quot; attributes added. The
5058&quot;attributes-natural-language&quot; value is derived from the current locale.
798d6e29
MS
5059
5060</p>
5061<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippNewResponse">ippNewResponse</a></h3>
5062 <p class="description">Allocate a new IPP response message.</p>
5063<p class="code">
98d88c8d 5064<a href="#ipp_t">ipp_t</a> *ippNewResponse(<a href="#ipp_t">ipp_t</a> *request);</p>
798d6e29 5065<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5066<table class="list"><tbody>
5067<tr><th>request</th>
5068 <td class="description">IPP request message</td></tr>
5069</tbody></table>
798d6e29
MS
5070<h4 class="returnvalue">Return Value</h4>
5071 <p class="description">IPP response message</p>
5072<h4 class="discussion">Discussion</h4>
65bebeac
MS
5073 <p class="discussion">The new response message is initialized with the same &quot;version-number&quot;,
5074&quot;request-id&quot;, &quot;attributes-charset&quot;, and &quot;attributes-natural-language&quot; as the
5075provided request message. If the &quot;attributes-charset&quot; or
5076&quot;attributes-natural-language&quot; attributes are missing from the request,
5077'utf-8' and a value derived from the current locale are substituted,
798d6e29
MS
5078respectively.
5079
5080</p>
5081<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippNextAttribute">ippNextAttribute</a></h3>
5082 <p class="description">Return the next attribute in the message.</p>
5083<p class="code">
98d88c8d 5084<a href="#ipp_attribute_t">ipp_attribute_t</a> *ippNextAttribute(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5085<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5086<table class="list"><tbody>
5087<tr><th>ipp</th>
5088 <td class="description">IPP message</td></tr>
5089</tbody></table>
798d6e29
MS
5090<h4 class="returnvalue">Return Value</h4>
5091 <p class="description">Next attribute or <code>NULL</code> if none</p>
5092<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippOpString">ippOpString</a></h3>
5093 <p class="description">Return a name for the given operation id.</p>
5094<p class="code">
98d88c8d 5095const char *ippOpString(ipp_op_t op);</p>
798d6e29 5096<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5097<table class="list"><tbody>
5098<tr><th>op</th>
5099 <td class="description">Operation ID</td></tr>
5100</tbody></table>
798d6e29
MS
5101<h4 class="returnvalue">Return Value</h4>
5102 <p class="description">Name</p>
5103<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippOpValue">ippOpValue</a></h3>
5104 <p class="description">Return an operation id for the given name.</p>
5105<p class="code">
98d88c8d 5106ipp_op_t ippOpValue(const char *name);</p>
798d6e29 5107<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5108<table class="list"><tbody>
5109<tr><th>name</th>
5110 <td class="description">Textual name</td></tr>
5111</tbody></table>
798d6e29
MS
5112<h4 class="returnvalue">Return Value</h4>
5113 <p class="description">Operation ID</p>
5114<h3 class="function"><a id="ippPort">ippPort</a></h3>
5115 <p class="description">Return the default IPP port number.</p>
5116<p class="code">
98d88c8d 5117int ippPort(void);</p>
798d6e29
MS
5118<h4 class="returnvalue">Return Value</h4>
5119 <p class="description">Port number</p>
5120<h3 class="function"><a id="ippRead">ippRead</a></h3>
5121 <p class="description">Read data for an IPP message from a HTTP connection.</p>
5122<p class="code">
98d88c8d 5123<a href="#ipp_state_t">ipp_state_t</a> ippRead(<a href="#http_t">http_t</a> *http, <a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5124<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5125<table class="list"><tbody>
5126<tr><th>http</th>
5127 <td class="description">HTTP connection</td></tr>
5128<tr><th>ipp</th>
5129 <td class="description">IPP data</td></tr>
5130</tbody></table>
798d6e29
MS
5131<h4 class="returnvalue">Return Value</h4>
5132 <p class="description">Current state</p>
5133<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="ippReadFile">ippReadFile</a></h3>
5134 <p class="description">Read data for an IPP message from a file.</p>
5135<p class="code">
98d88c8d 5136<a href="#ipp_state_t">ipp_state_t</a> ippReadFile(int fd, <a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5137<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5138<table class="list"><tbody>
5139<tr><th>fd</th>
5140 <td class="description">HTTP data</td></tr>
5141<tr><th>ipp</th>
5142 <td class="description">IPP data</td></tr>
5143</tbody></table>
798d6e29
MS
5144<h4 class="returnvalue">Return Value</h4>
5145 <p class="description">Current state</p>
5146<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippReadIO">ippReadIO</a></h3>
5147 <p class="description">Read data for an IPP message.</p>
5148<p class="code">
98d88c8d
MS
5149<a href="#ipp_state_t">ipp_state_t</a> ippReadIO(void *src, <a href="#ipp_iocb_t">ipp_iocb_t</a> cb, int blocking, <a href="#ipp_t">ipp_t</a> *parent, <a href="#ipp_t">ipp_t</a> *ipp);</p>
5150<h4 class="parameters">Parameters</h4>
5151<table class="list"><tbody>
5152<tr><th>src</th>
5153 <td class="description">Data source</td></tr>
5154<tr><th>cb</th>
5155 <td class="description">Read callback function</td></tr>
5156<tr><th>blocking</th>
5157 <td class="description">Use blocking IO?</td></tr>
5158<tr><th>parent</th>
5159 <td class="description">Parent request, if any</td></tr>
5160<tr><th>ipp</th>
5161 <td class="description">IPP data</td></tr>
5162</tbody></table>
798d6e29
MS
5163<h4 class="returnvalue">Return Value</h4>
5164 <p class="description">Current state</p>
5165<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetBoolean">ippSetBoolean</a></h3>
5166 <p class="description">Set a boolean value in an attribute.</p>
5167<p class="code">
98d88c8d
MS
5168int ippSetBoolean(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, int boolvalue);</p>
5169<h4 class="parameters">Parameters</h4>
5170<table class="list"><tbody>
5171<tr><th>ipp</th>
5172 <td class="description">IPP message</td></tr>
5173<tr><th>attr</th>
5174 <td class="description">IPP attribute</td></tr>
5175<tr><th>element</th>
5176 <td class="description">Value number (0-based)</td></tr>
5177<tr><th>boolvalue</th>
5178 <td class="description">Boolean value</td></tr>
5179</tbody></table>
798d6e29
MS
5180<h4 class="returnvalue">Return Value</h4>
5181 <p class="description">1 on success, 0 on failure</p>
5182<h4 class="discussion">Discussion</h4>
5183 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5184the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5185<br>
5186The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5187<br>
5188The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5189<code>ippGetCount(attr)</code>.
798d6e29
MS
5190
5191</p>
5192<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetCollection">ippSetCollection</a></h3>
5193 <p class="description">Set a collection value in an attribute.</p>
5194<p class="code">
98d88c8d
MS
5195int ippSetCollection(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, <a href="#ipp_t">ipp_t</a> *colvalue);</p>
5196<h4 class="parameters">Parameters</h4>
5197<table class="list"><tbody>
5198<tr><th>ipp</th>
5199 <td class="description">IPP message</td></tr>
5200<tr><th>attr</th>
5201 <td class="description">IPP attribute</td></tr>
5202<tr><th>element</th>
5203 <td class="description">Value number (0-based)</td></tr>
5204<tr><th>colvalue</th>
5205 <td class="description">Collection value</td></tr>
5206</tbody></table>
798d6e29
MS
5207<h4 class="returnvalue">Return Value</h4>
5208 <p class="description">1 on success, 0 on failure</p>
5209<h4 class="discussion">Discussion</h4>
5210 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5211the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5212<br>
5213The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5214<br>
5215The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5216<code>ippGetCount(attr)</code>.
798d6e29
MS
5217
5218</p>
5219<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetDate">ippSetDate</a></h3>
65bebeac 5220 <p class="description">Set a dateTime value in an attribute.</p>
798d6e29 5221<p class="code">
98d88c8d
MS
5222int ippSetDate(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, const <a href="#ipp_uchar_t">ipp_uchar_t</a> *datevalue);</p>
5223<h4 class="parameters">Parameters</h4>
5224<table class="list"><tbody>
5225<tr><th>ipp</th>
5226 <td class="description">IPP message</td></tr>
5227<tr><th>attr</th>
5228 <td class="description">IPP attribute</td></tr>
5229<tr><th>element</th>
5230 <td class="description">Value number (0-based)</td></tr>
5231<tr><th>datevalue</th>
65bebeac 5232 <td class="description">dateTime value</td></tr>
98d88c8d 5233</tbody></table>
798d6e29
MS
5234<h4 class="returnvalue">Return Value</h4>
5235 <p class="description">1 on success, 0 on failure</p>
5236<h4 class="discussion">Discussion</h4>
5237 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5238the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5239<br>
5240The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5241<br>
5242The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5243<code>ippGetCount(attr)</code>.
798d6e29
MS
5244
5245</p>
5246<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetGroupTag">ippSetGroupTag</a></h3>
5247 <p class="description">Set the group tag of an attribute.</p>
5248<p class="code">
98d88c8d
MS
5249int ippSetGroupTag(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, ipp_tag_t group_tag);</p>
5250<h4 class="parameters">Parameters</h4>
5251<table class="list"><tbody>
5252<tr><th>ipp</th>
5253 <td class="description">IPP message</td></tr>
5254<tr><th>attr</th>
5255 <td class="description">Attribute</td></tr>
5256<tr><th>group_tag</th>
5257 <td class="description">Group tag</td></tr>
5258</tbody></table>
798d6e29
MS
5259<h4 class="returnvalue">Return Value</h4>
5260 <p class="description">1 on success, 0 on failure</p>
5261<h4 class="discussion">Discussion</h4>
5262 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5263the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5264<br>
5265The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5266<br>
5267The <code>group</code> parameter specifies the IPP attribute group tag: none
5268(<code>IPP_TAG_ZERO</code>, for member attributes), document (<code>IPP_TAG_DOCUMENT</code>),
5269event notification (<code>IPP_TAG_EVENT_NOTIFICATION</code>), operation
5270(<code>IPP_TAG_OPERATION</code>), printer (<code>IPP_TAG_PRINTER</code>), subscription
5271(<code>IPP_TAG_SUBSCRIPTION</code>), or unsupported (<code>IPP_TAG_UNSUPPORTED_GROUP</code>).
5272
5273</p>
5274<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetInteger">ippSetInteger</a></h3>
5275 <p class="description">Set an integer or enum value in an attribute.</p>
5276<p class="code">
98d88c8d
MS
5277int ippSetInteger(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, int intvalue);</p>
5278<h4 class="parameters">Parameters</h4>
5279<table class="list"><tbody>
5280<tr><th>ipp</th>
5281 <td class="description">IPP message</td></tr>
5282<tr><th>attr</th>
5283 <td class="description">IPP attribute</td></tr>
5284<tr><th>element</th>
5285 <td class="description">Value number (0-based)</td></tr>
5286<tr><th>intvalue</th>
5287 <td class="description">Integer/enum value</td></tr>
5288</tbody></table>
798d6e29
MS
5289<h4 class="returnvalue">Return Value</h4>
5290 <p class="description">1 on success, 0 on failure</p>
5291<h4 class="discussion">Discussion</h4>
5292 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5293the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5294<br>
5295The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5296<br>
5297The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5298<code>ippGetCount(attr)</code>.
798d6e29
MS
5299
5300</p>
5301<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetName">ippSetName</a></h3>
5302 <p class="description">Set the name of an attribute.</p>
5303<p class="code">
98d88c8d
MS
5304int ippSetName(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, const char *name);</p>
5305<h4 class="parameters">Parameters</h4>
5306<table class="list"><tbody>
5307<tr><th>ipp</th>
5308 <td class="description">IPP message</td></tr>
5309<tr><th>attr</th>
5310 <td class="description">IPP attribute</td></tr>
5311<tr><th>name</th>
5312 <td class="description">Attribute name</td></tr>
5313</tbody></table>
798d6e29
MS
5314<h4 class="returnvalue">Return Value</h4>
5315 <p class="description">1 on success, 0 on failure</p>
5316<h4 class="discussion">Discussion</h4>
5317 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5318the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5319<br>
5320The <code>attr</code> parameter may be modified as a result of setting the value.
5321
5322</p>
5323<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippSetOctetString">ippSetOctetString</a></h3>
5324 <p class="description">Set an octetString value in an IPP attribute.</p>
5325<p class="code">
98d88c8d
MS
5326int ippSetOctetString(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, const void *data, int datalen);</p>
5327<h4 class="parameters">Parameters</h4>
5328<table class="list"><tbody>
5329<tr><th>ipp</th>
5330 <td class="description">IPP message</td></tr>
5331<tr><th>attr</th>
5332 <td class="description">IPP attribute</td></tr>
5333<tr><th>element</th>
5334 <td class="description">Value number (0-based)</td></tr>
5335<tr><th>data</th>
5336 <td class="description">Pointer to octetString data</td></tr>
5337<tr><th>datalen</th>
5338 <td class="description">Length of octetString data</td></tr>
5339</tbody></table>
798d6e29
MS
5340<h4 class="returnvalue">Return Value</h4>
5341 <p class="description">1 on success, 0 on failure</p>
5342<h4 class="discussion">Discussion</h4>
5343 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5344the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5345<br>
5346The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5347<br>
5348The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5349<code>ippGetCount(attr)</code>.
798d6e29
MS
5350
5351</p>
5352<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetOperation">ippSetOperation</a></h3>
5353 <p class="description">Set the operation ID in an IPP request message.</p>
5354<p class="code">
98d88c8d 5355int ippSetOperation(<a href="#ipp_t">ipp_t</a> *ipp, ipp_op_t op);</p>
798d6e29 5356<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5357<table class="list"><tbody>
5358<tr><th>ipp</th>
5359 <td class="description">IPP request message</td></tr>
5360<tr><th>op</th>
5361 <td class="description">Operation ID</td></tr>
5362</tbody></table>
798d6e29
MS
5363<h4 class="returnvalue">Return Value</h4>
5364 <p class="description">1 on success, 0 on failure</p>
5365<h4 class="discussion">Discussion</h4>
5366 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5367the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.
5368
5369</p>
5370<h3 class="function"><a id="ippSetPort">ippSetPort</a></h3>
98d88c8d 5371 <p class="description">Set the default port number.</p>
798d6e29 5372<p class="code">
98d88c8d 5373void ippSetPort(int p);</p>
798d6e29 5374<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5375<table class="list"><tbody>
5376<tr><th>p</th>
5377 <td class="description">Port number to use</td></tr>
5378</tbody></table>
798d6e29
MS
5379<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetRange">ippSetRange</a></h3>
5380 <p class="description">Set a rangeOfInteger value in an attribute.</p>
5381<p class="code">
98d88c8d
MS
5382int ippSetRange(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, int lowervalue, int uppervalue);</p>
5383<h4 class="parameters">Parameters</h4>
5384<table class="list"><tbody>
5385<tr><th>ipp</th>
5386 <td class="description">IPP message</td></tr>
5387<tr><th>attr</th>
5388 <td class="description">IPP attribute</td></tr>
5389<tr><th>element</th>
5390 <td class="description">Value number (0-based)</td></tr>
5391<tr><th>lowervalue</th>
5392 <td class="description">Lower bound for range</td></tr>
5393<tr><th>uppervalue</th>
5394 <td class="description">Upper bound for range</td></tr>
5395</tbody></table>
798d6e29
MS
5396<h4 class="returnvalue">Return Value</h4>
5397 <p class="description">1 on success, 0 on failure</p>
5398<h4 class="discussion">Discussion</h4>
5399 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5400the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5401<br>
5402The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5403<br>
5404The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5405<code>ippGetCount(attr)</code>.
798d6e29
MS
5406
5407</p>
5408<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetRequestId">ippSetRequestId</a></h3>
5409 <p class="description">Set the request ID in an IPP message.</p>
5410<p class="code">
98d88c8d 5411int ippSetRequestId(<a href="#ipp_t">ipp_t</a> *ipp, int request_id);</p>
798d6e29 5412<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5413<table class="list"><tbody>
5414<tr><th>ipp</th>
5415 <td class="description">IPP message</td></tr>
5416<tr><th>request_id</th>
5417 <td class="description">Request ID</td></tr>
5418</tbody></table>
798d6e29
MS
5419<h4 class="returnvalue">Return Value</h4>
5420 <p class="description">1 on success, 0 on failure</p>
5421<h4 class="discussion">Discussion</h4>
5422 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5423the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5424<br>
5425The <code>request_id</code> parameter must be greater than 0.
5426
5427</p>
5428<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetResolution">ippSetResolution</a></h3>
5429 <p class="description">Set a resolution value in an attribute.</p>
5430<p class="code">
98d88c8d
MS
5431int ippSetResolution(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, <a href="#ipp_res_t">ipp_res_t</a> unitsvalue, int xresvalue, int yresvalue);</p>
5432<h4 class="parameters">Parameters</h4>
5433<table class="list"><tbody>
5434<tr><th>ipp</th>
5435 <td class="description">IPP message</td></tr>
5436<tr><th>attr</th>
5437 <td class="description">IPP attribute</td></tr>
5438<tr><th>element</th>
5439 <td class="description">Value number (0-based)</td></tr>
5440<tr><th>unitsvalue</th>
5441 <td class="description">Resolution units</td></tr>
5442<tr><th>xresvalue</th>
5443 <td class="description">Horizontal/cross feed resolution</td></tr>
5444<tr><th>yresvalue</th>
5445 <td class="description">Vertical/feed resolution</td></tr>
5446</tbody></table>
798d6e29
MS
5447<h4 class="returnvalue">Return Value</h4>
5448 <p class="description">1 on success, 0 on failure</p>
5449<h4 class="discussion">Discussion</h4>
5450 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5451the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5452<br>
5453The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5454<br>
5455The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5456<code>ippGetCount(attr)</code>.
798d6e29
MS
5457
5458</p>
5459<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetState">ippSetState</a></h3>
5460 <p class="description">Set the current state of the IPP message.</p>
5461<p class="code">
98d88c8d 5462int ippSetState(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_state_t">ipp_state_t</a> state);</p>
798d6e29 5463<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5464<table class="list"><tbody>
5465<tr><th>ipp</th>
5466 <td class="description">IPP message</td></tr>
5467<tr><th>state</th>
5468 <td class="description">IPP state value</td></tr>
5469</tbody></table>
798d6e29
MS
5470<h4 class="returnvalue">Return Value</h4>
5471 <p class="description">1 on success, 0 on failure</p>
5472<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetStatusCode">ippSetStatusCode</a></h3>
5473 <p class="description">Set the status code in an IPP response or event message.</p>
5474<p class="code">
98d88c8d 5475int ippSetStatusCode(<a href="#ipp_t">ipp_t</a> *ipp, ipp_status_t status);</p>
798d6e29 5476<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5477<table class="list"><tbody>
5478<tr><th>ipp</th>
5479 <td class="description">IPP response or event message</td></tr>
5480<tr><th>status</th>
5481 <td class="description">Status code</td></tr>
5482</tbody></table>
798d6e29
MS
5483<h4 class="returnvalue">Return Value</h4>
5484 <p class="description">1 on success, 0 on failure</p>
5485<h4 class="discussion">Discussion</h4>
5486 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5487the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.
5488
5489</p>
5490<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetString">ippSetString</a></h3>
5491 <p class="description">Set a string value in an attribute.</p>
5492<p class="code">
98d88c8d
MS
5493int ippSetString(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, const char *strvalue);</p>
5494<h4 class="parameters">Parameters</h4>
5495<table class="list"><tbody>
5496<tr><th>ipp</th>
5497 <td class="description">IPP message</td></tr>
5498<tr><th>attr</th>
5499 <td class="description">IPP attribute</td></tr>
5500<tr><th>element</th>
5501 <td class="description">Value number (0-based)</td></tr>
5502<tr><th>strvalue</th>
5503 <td class="description">String value</td></tr>
5504</tbody></table>
798d6e29
MS
5505<h4 class="returnvalue">Return Value</h4>
5506 <p class="description">1 on success, 0 on failure</p>
5507<h4 class="discussion">Discussion</h4>
5508 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5509the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5510<br>
5511The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5512<br>
5513The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5514<code>ippGetCount(attr)</code>.
798d6e29
MS
5515
5516</p>
5517<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippSetStringf">ippSetStringf</a></h3>
5518 <p class="description">Set a formatted string value of an attribute.</p>
5519<p class="code">
98d88c8d
MS
5520int ippSetStringf(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, const char *format, ...);</p>
5521<h4 class="parameters">Parameters</h4>
5522<table class="list"><tbody>
5523<tr><th>ipp</th>
5524 <td class="description">IPP message</td></tr>
5525<tr><th>attr</th>
5526 <td class="description">IPP attribute</td></tr>
5527<tr><th>element</th>
5528 <td class="description">Value number (0-based)</td></tr>
5529<tr><th>format</th>
5530 <td class="description">Printf-style format string</td></tr>
5531<tr><th>...</th>
5532 <td class="description">Additional arguments as needed</td></tr>
5533</tbody></table>
798d6e29
MS
5534<h4 class="returnvalue">Return Value</h4>
5535 <p class="description">1 on success, 0 on failure</p>
5536<h4 class="discussion">Discussion</h4>
5537 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5538the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5539<br>
5540The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5541<br>
5542The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5543<code>ippGetCount(attr)</code>.<br>
798d6e29
MS
5544<br>
5545The <code>format</code> parameter uses formatting characters compatible with the
5546printf family of standard functions. Additional arguments follow it as
5547needed. The formatted string is truncated as needed to the maximum length of
5548the corresponding value type.
5549
5550</p>
5551<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippSetStringfv">ippSetStringfv</a></h3>
5552 <p class="description">Set a formatted string value of an attribute.</p>
5553<p class="code">
98d88c8d
MS
5554int ippSetStringfv(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, int element, const char *format, va_list ap);</p>
5555<h4 class="parameters">Parameters</h4>
5556<table class="list"><tbody>
5557<tr><th>ipp</th>
5558 <td class="description">IPP message</td></tr>
5559<tr><th>attr</th>
5560 <td class="description">IPP attribute</td></tr>
5561<tr><th>element</th>
5562 <td class="description">Value number (0-based)</td></tr>
5563<tr><th>format</th>
5564 <td class="description">Printf-style format string</td></tr>
5565<tr><th>ap</th>
5566 <td class="description">Pointer to additional arguments</td></tr>
5567</tbody></table>
798d6e29
MS
5568<h4 class="returnvalue">Return Value</h4>
5569 <p class="description">1 on success, 0 on failure</p>
5570<h4 class="discussion">Discussion</h4>
5571 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5572the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5573<br>
5574The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5575<br>
5576The <code>element</code> parameter specifies which value to set from 0 to
65bebeac 5577<code>ippGetCount(attr)</code>.<br>
798d6e29
MS
5578<br>
5579The <code>format</code> parameter uses formatting characters compatible with the
5580printf family of standard functions. Additional arguments follow it as
5581needed. The formatted string is truncated as needed to the maximum length of
5582the corresponding value type.
5583
5584</p>
5585<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetValueTag">ippSetValueTag</a></h3>
5586 <p class="description">Set the value tag of an attribute.</p>
5587<p class="code">
98d88c8d
MS
5588int ippSetValueTag(<a href="#ipp_t">ipp_t</a> *ipp, <a href="#ipp_attribute_t">ipp_attribute_t</a> **attr, ipp_tag_t value_tag);</p>
5589<h4 class="parameters">Parameters</h4>
5590<table class="list"><tbody>
5591<tr><th>ipp</th>
5592 <td class="description">IPP message</td></tr>
5593<tr><th>attr</th>
5594 <td class="description">IPP attribute</td></tr>
5595<tr><th>value_tag</th>
5596 <td class="description">Value tag</td></tr>
5597</tbody></table>
798d6e29
MS
5598<h4 class="returnvalue">Return Value</h4>
5599 <p class="description">1 on success, 0 on failure</p>
5600<h4 class="discussion">Discussion</h4>
5601 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5602the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5603<br>
5604The <code>attr</code> parameter may be modified as a result of setting the value.<br>
5605<br>
5606Integer (<code>IPP_TAG_INTEGER</code>) values can be promoted to rangeOfInteger
5607(<code>IPP_TAG_RANGE</code>) values, the various string tags can be promoted to name
5608(<code>IPP_TAG_NAME</code>) or nameWithLanguage (<code>IPP_TAG_NAMELANG</code>) values, text
5609(<code>IPP_TAG_TEXT</code>) values can be promoted to textWithLanguage
5610(<code>IPP_TAG_TEXTLANG</code>) values, and all values can be demoted to the various
5611out-of-band value tags such as no-value (<code>IPP_TAG_NOVALUE</code>). All other changes
5612will be rejected.<br>
5613<br>
5614Promoting a string attribute to nameWithLanguage or textWithLanguage adds the language
5615code in the &quot;attributes-natural-language&quot; attribute or, if not present, the language
5616code for the current locale.
5617
5618</p>
5619<h3 class="function"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="ippSetVersion">ippSetVersion</a></h3>
5620 <p class="description">Set the version number in an IPP message.</p>
5621<p class="code">
98d88c8d
MS
5622int ippSetVersion(<a href="#ipp_t">ipp_t</a> *ipp, int major, int minor);</p>
5623<h4 class="parameters">Parameters</h4>
5624<table class="list"><tbody>
5625<tr><th>ipp</th>
5626 <td class="description">IPP message</td></tr>
5627<tr><th>major</th>
5628 <td class="description">Major version number (major.minor)</td></tr>
5629<tr><th>minor</th>
5630 <td class="description">Minor version number (major.minor)</td></tr>
5631</tbody></table>
798d6e29
MS
5632<h4 class="returnvalue">Return Value</h4>
5633 <p class="description">1 on success, 0 on failure</p>
5634<h4 class="discussion">Discussion</h4>
5635 <p class="discussion">The <code>ipp</code> parameter refers to an IPP message previously created using
5636the <a href="#ippNew"><code>ippNew</code></a>, <a href="#ippNewRequest"><code>ippNewRequest</code></a>, or <a href="#ippNewResponse"><code>ippNewResponse</code></a> functions.<br>
5637<br>
5638The valid version numbers are currently 1.0, 1.1, 2.0, 2.1, and 2.2.
5639
5640</p>
5641<h3 class="function"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span><a id="ippStateString">ippStateString</a></h3>
5642 <p class="description">Return the name corresponding to a state value.</p>
5643<p class="code">
98d88c8d 5644const char *ippStateString(<a href="#ipp_state_t">ipp_state_t</a> state);</p>
798d6e29 5645<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5646<table class="list"><tbody>
5647<tr><th>state</th>
5648 <td class="description">State value</td></tr>
5649</tbody></table>
798d6e29
MS
5650<h4 class="returnvalue">Return Value</h4>
5651 <p class="description">State name</p>
5652<h3 class="function"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span><a id="ippTagString">ippTagString</a></h3>
5653 <p class="description">Return the tag name corresponding to a tag value.</p>
5654<p class="code">
98d88c8d 5655const char *ippTagString(ipp_tag_t tag);</p>
798d6e29 5656<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5657<table class="list"><tbody>
5658<tr><th>tag</th>
5659 <td class="description">Tag value</td></tr>
5660</tbody></table>
798d6e29
MS
5661<h4 class="returnvalue">Return Value</h4>
5662 <p class="description">Tag name</p>
5663<h4 class="discussion">Discussion</h4>
65bebeac 5664 <p class="discussion">The returned names are defined in RFC 8011 and the IANA IPP Registry.
798d6e29
MS
5665
5666</p>
5667<h3 class="function"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span><a id="ippTagValue">ippTagValue</a></h3>
5668 <p class="description">Return the tag value corresponding to a tag name.</p>
5669<p class="code">
98d88c8d 5670ipp_tag_t ippTagValue(const char *name);</p>
798d6e29 5671<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5672<table class="list"><tbody>
5673<tr><th>name</th>
5674 <td class="description">Tag name</td></tr>
5675</tbody></table>
798d6e29
MS
5676<h4 class="returnvalue">Return Value</h4>
5677 <p class="description">Tag value</p>
5678<h4 class="discussion">Discussion</h4>
65bebeac 5679 <p class="discussion">The tag names are defined in RFC 8011 and the IANA IPP Registry.
798d6e29
MS
5680
5681</p>
5682<h3 class="function"><a id="ippTimeToDate">ippTimeToDate</a></h3>
65bebeac 5683 <p class="description">Convert from time in seconds to RFC 2579 format.</p>
798d6e29 5684<p class="code">
98d88c8d 5685const <a href="#ipp_uchar_t">ipp_uchar_t</a> *ippTimeToDate(time_t t);</p>
798d6e29 5686<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5687<table class="list"><tbody>
5688<tr><th>t</th>
65bebeac 5689 <td class="description">Time in seconds</td></tr>
98d88c8d 5690</tbody></table>
798d6e29 5691<h4 class="returnvalue">Return Value</h4>
65bebeac 5692 <p class="description">RFC-2579 date/time data</p>
798d6e29
MS
5693<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippValidateAttribute">ippValidateAttribute</a></h3>
5694 <p class="description">Validate the contents of an attribute.</p>
5695<p class="code">
98d88c8d 5696int ippValidateAttribute(<a href="#ipp_attribute_t">ipp_attribute_t</a> *attr);</p>
798d6e29 5697<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5698<table class="list"><tbody>
5699<tr><th>attr</th>
5700 <td class="description">Attribute</td></tr>
5701</tbody></table>
798d6e29
MS
5702<h4 class="returnvalue">Return Value</h4>
5703 <p class="description">1 if valid, 0 otherwise</p>
5704<h4 class="discussion">Discussion</h4>
5705 <p class="discussion">This function validates the contents of an attribute based on the name and
5706value tag. 1 is returned if the attribute is valid, 0 otherwise. On
65bebeac 5707failure, <a href="#cupsLastErrorString"><code>cupsLastErrorString</code></a> is set to a human-readable message.
798d6e29
MS
5708
5709</p>
5710<h3 class="function"><span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span><a id="ippValidateAttributes">ippValidateAttributes</a></h3>
5711 <p class="description">Validate all attributes in an IPP message.</p>
5712<p class="code">
98d88c8d 5713int ippValidateAttributes(<a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5714<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5715<table class="list"><tbody>
5716<tr><th>ipp</th>
5717 <td class="description">IPP message</td></tr>
5718</tbody></table>
798d6e29
MS
5719<h4 class="returnvalue">Return Value</h4>
5720 <p class="description">1 if valid, 0 otherwise</p>
5721<h4 class="discussion">Discussion</h4>
5722 <p class="discussion">This function validates the contents of the IPP message, including each
65bebeac
MS
5723attribute. Like <a href="#ippValidateAttribute"><code>ippValidateAttribute</code></a>, <a href="#cupsLastErrorString"><code>cupsLastErrorString</code></a> is
5724set to a human-readable message on failure.
798d6e29
MS
5725
5726</p>
5727<h3 class="function"><a id="ippWrite">ippWrite</a></h3>
5728 <p class="description">Write data for an IPP message to a HTTP connection.</p>
5729<p class="code">
98d88c8d 5730<a href="#ipp_state_t">ipp_state_t</a> ippWrite(<a href="#http_t">http_t</a> *http, <a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5731<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5732<table class="list"><tbody>
5733<tr><th>http</th>
5734 <td class="description">HTTP connection</td></tr>
5735<tr><th>ipp</th>
5736 <td class="description">IPP data</td></tr>
5737</tbody></table>
798d6e29
MS
5738<h4 class="returnvalue">Return Value</h4>
5739 <p class="description">Current state</p>
5740<h3 class="function"><span class="info">&#160;CUPS 1.1.19/macOS 10.3&#160;</span><a id="ippWriteFile">ippWriteFile</a></h3>
5741 <p class="description">Write data for an IPP message to a file.</p>
5742<p class="code">
98d88c8d 5743<a href="#ipp_state_t">ipp_state_t</a> ippWriteFile(int fd, <a href="#ipp_t">ipp_t</a> *ipp);</p>
798d6e29 5744<h4 class="parameters">Parameters</h4>
98d88c8d
MS
5745<table class="list"><tbody>
5746<tr><th>fd</th>
5747 <td class="description">HTTP data</td></tr>
5748<tr><th>ipp</th>
5749 <td class="description">IPP data</td></tr>
5750</tbody></table>
798d6e29
MS
5751<h4 class="returnvalue">Return Value</h4>
5752 <p class="description">Current state</p>
5753<h3 class="function"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span><a id="ippWriteIO">ippWriteIO</a></h3>
5754 <p class="description">Write data for an IPP message.</p>
5755<p class="code">
98d88c8d
MS
5756<a href="#ipp_state_t">ipp_state_t</a> ippWriteIO(void *dst, <a href="#ipp_iocb_t">ipp_iocb_t</a> cb, int blocking, <a href="#ipp_t">ipp_t</a> *parent, <a href="#ipp_t">ipp_t</a> *ipp);</p>
5757<h4 class="parameters">Parameters</h4>
5758<table class="list"><tbody>
5759<tr><th>dst</th>
5760 <td class="description">Destination</td></tr>
5761<tr><th>cb</th>
5762 <td class="description">Write callback function</td></tr>
5763<tr><th>blocking</th>
5764 <td class="description">Use blocking IO?</td></tr>
5765<tr><th>parent</th>
5766 <td class="description">Parent IPP message</td></tr>
5767<tr><th>ipp</th>
5768 <td class="description">IPP data</td></tr>
5769</tbody></table>
798d6e29
MS
5770<h4 class="returnvalue">Return Value</h4>
5771 <p class="description">Current state</p>
798d6e29 5772 <h2 class="title"><a id="TYPES">Data Types</a></h2>
798d6e29
MS
5773 <h3 class="typedef"><a id="cups_client_cert_cb_t"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span>cups_client_cert_cb_t</a></h3>
5774 <p class="description">Client credentials callback
5775</p>
5776 <p class="code">
53af7f21 5777typedef int(*)(http_t *http, void *tls, cups_array_t *distinguished_names, void *user_data)cups_client_cert_cb_t;
798d6e29
MS
5778</p>
5779 <h3 class="typedef"><a id="cups_dest_cb_t"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span>cups_dest_cb_t</a></h3>
5780 <p class="description">Destination enumeration callback
5781</p>
5782 <p class="code">
5783typedef int(*)(void *user_data, unsigned flags, <a href="#cups_dest_t">cups_dest_t</a> *dest)cups_dest_cb_t;
5784</p>
5785 <h3 class="typedef"><a id="cups_dest_t">cups_dest_t</a></h3>
5786 <p class="description">Destination</p>
5787 <p class="code">
5788typedef struct <a href="#cups_dest_s">cups_dest_s</a> cups_dest_t;
5789</p>
5790 <h3 class="typedef"><a id="cups_dinfo_t"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span>cups_dinfo_t</a></h3>
5791 <p class="description">Destination capability and status
5792information </p>
5793 <p class="code">
5794typedef struct _cups_dinfo_s cups_dinfo_t;
798d6e29
MS
5795</p>
5796 <h3 class="typedef"><a id="cups_job_t">cups_job_t</a></h3>
5797 <p class="description">Job</p>
5798 <p class="code">
5799typedef struct <a href="#cups_job_s">cups_job_s</a> cups_job_t;
798d6e29
MS
5800</p>
5801 <h3 class="typedef"><a id="cups_option_t">cups_option_t</a></h3>
5802 <p class="description">Printer Options</p>
5803 <p class="code">
5804typedef struct <a href="#cups_option_s">cups_option_s</a> cups_option_t;
5805</p>
5806 <h3 class="typedef"><a id="cups_password_cb2_t"><span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span>cups_password_cb2_t</a></h3>
5807 <p class="description">New password callback
5808</p>
5809 <p class="code">
5810typedef const char *(*)(const char *prompt, <a href="#http_t">http_t</a> *http, const char *method, const char *resource, void *user_data)cups_password_cb2_t;
798d6e29
MS
5811</p>
5812 <h3 class="typedef"><a id="cups_ptype_t">cups_ptype_t</a></h3>
5813 <p class="description">Printer type/capability bits</p>
5814 <p class="code">
5815typedef unsigned cups_ptype_t;
5816</p>
5817 <h3 class="typedef"><a id="cups_server_cert_cb_t"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span>cups_server_cert_cb_t</a></h3>
5818 <p class="description">Server credentials callback
5819</p>
5820 <p class="code">
53af7f21 5821typedef int(*)(http_t *http, void *tls, cups_array_t *certs, void *user_data)cups_server_cert_cb_t;
798d6e29
MS
5822</p>
5823 <h3 class="typedef"><a id="cups_size_t"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span>cups_size_t</a></h3>
5824 <p class="description">Media Size </p>
5825 <p class="code">
5826typedef struct <a href="#cups_size_s">cups_size_s</a> cups_size_t;
798d6e29
MS
5827</p>
5828 <h3 class="typedef"><a id="http_addr_t"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span>http_addr_t</a></h3>
5829 <p class="description">Socket address union, which
5830makes using IPv6 and other
5831address types easier and
5832more portable. </p>
5833 <p class="code">
5834typedef union _http_addr_u / http_addr_t;
798d6e29
MS
5835</p>
5836 <h3 class="typedef"><a id="http_encoding_t">http_encoding_t</a></h3>
5837 <p class="description">HTTP transfer encoding values</p>
5838 <p class="code">
5839typedef enum <a href="#http_encoding_e">http_encoding_e</a> http_encoding_t;
5840</p>
5841 <h3 class="typedef"><a id="http_encryption_t">http_encryption_t</a></h3>
5842 <p class="description">HTTP encryption values</p>
5843 <p class="code">
5844typedef enum <a href="#http_encryption_e">http_encryption_e</a> http_encryption_t;
5845</p>
5846 <h3 class="typedef"><a id="http_field_t">http_field_t</a></h3>
5847 <p class="description">HTTP field names</p>
5848 <p class="code">
5849typedef enum <a href="#http_field_e">http_field_e</a> http_field_t;
5850</p>
5851 <h3 class="typedef"><a id="http_keepalive_t">http_keepalive_t</a></h3>
5852 <p class="description">HTTP keep-alive values</p>
5853 <p class="code">
5854typedef enum <a href="#http_keepalive_e">http_keepalive_e</a> http_keepalive_t;
5855</p>
5856 <h3 class="typedef"><a id="http_state_t">http_state_t</a></h3>
5857 <p class="description">HTTP state values; states
5858are server-oriented...</p>
5859 <p class="code">
5860typedef enum <a href="#http_state_e">http_state_e</a> http_state_t;
5861</p>
5862 <h3 class="typedef"><a id="http_t">http_t</a></h3>
5863 <p class="description">HTTP connection type</p>
5864 <p class="code">
5865typedef struct _http_s http_t;
5866</p>
5867 <h3 class="typedef"><a id="http_timeout_cb_t"><span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span>http_timeout_cb_t</a></h3>
5868 <p class="description">HTTP timeout callback </p>
5869 <p class="code">
5870typedef int(*)(http_t *http, void *user_data)http_timeout_cb_t;
5871</p>
5872 <h3 class="typedef"><a id="http_trust_t"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span>http_trust_t</a></h3>
5873 <p class="description">Level of trust for credentials </p>
5874 <p class="code">
5875typedef enum <a href="#http_trust_e">http_trust_e</a> http_trust_t;
5876</p>
5877 <h3 class="typedef"><a id="http_uri_coding_t">http_uri_coding_t</a></h3>
5878 <p class="description">URI en/decode flags</p>
5879 <p class="code">
5880typedef enum <a href="#http_uri_coding_e">http_uri_coding_e</a> http_uri_coding_t;
5881</p>
5882 <h3 class="typedef"><a id="http_uri_status_t"><span class="info">&#160;CUPS 1.2&#160;</span>http_uri_status_t</a></h3>
5883 <p class="description">URI separation status </p>
5884 <p class="code">
5885typedef enum <a href="#http_uri_status_e">http_uri_status_e</a> http_uri_status_t;
798d6e29
MS
5886</p>
5887 <h3 class="typedef"><a id="ipp_attribute_t">ipp_attribute_t</a></h3>
5888 <p class="description">IPP attribute</p>
5889 <p class="code">
5890typedef struct _ipp_attribute_s ipp_attribute_t;
5891</p>
65bebeac
MS
5892 <h3 class="typedef"><a id="ipp_copycb_t"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span>ipp_copycb_t</a></h3>
5893 <p class="description">ippCopyAttributes callback function </p>
798d6e29
MS
5894 <p class="code">
5895typedef int(*)(void *context, <a href="#ipp_t">ipp_t</a> *dst, <a href="#ipp_attribute_t">ipp_attribute_t</a> *attr)ipp_copycb_t;
798d6e29
MS
5896</p>
5897 <h3 class="typedef"><a id="ipp_iocb_t"><span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span>ipp_iocb_t</a></h3>
65bebeac 5898 <p class="description">ippReadIO/ippWriteIO callback function </p>
798d6e29 5899 <p class="code">
98d88c8d 5900typedef ssize_t(*)(void *context, ipp_uchar_t *buffer, size_t bytes) ipp_iocb_t;
798d6e29
MS
5901</p>
5902 <h3 class="typedef"><a id="ipp_orient_t">ipp_orient_t</a></h3>
5903 <p class="description">Orientation values</p>
5904 <p class="code">
5905typedef enum <a href="#ipp_orient_e">ipp_orient_e</a> ipp_orient_t;
5906</p>
5907 <h3 class="typedef"><a id="ipp_pstate_t">ipp_pstate_t</a></h3>
65bebeac 5908 <p class="description">Printer state values</p>
798d6e29
MS
5909 <p class="code">
5910typedef enum <a href="#ipp_pstate_e">ipp_pstate_e</a> ipp_pstate_t;
5911</p>
5912 <h3 class="typedef"><a id="ipp_quality_t">ipp_quality_t</a></h3>
65bebeac 5913 <p class="description">Print quality values</p>
798d6e29
MS
5914 <p class="code">
5915typedef enum <a href="#ipp_quality_e">ipp_quality_e</a> ipp_quality_t;
5916</p>
5917 <h3 class="typedef"><a id="ipp_res_t">ipp_res_t</a></h3>
5918 <p class="description">Resolution units</p>
5919 <p class="code">
5920typedef enum <a href="#ipp_res_e">ipp_res_e</a> ipp_res_t;
5921</p>
5922 <h3 class="typedef"><a id="ipp_state_t">ipp_state_t</a></h3>
65bebeac 5923 <p class="description">ipp_t state values</p>
798d6e29
MS
5924 <p class="code">
5925typedef enum <a href="#ipp_state_e">ipp_state_e</a> ipp_state_t;
5926</p>
5927 <h3 class="typedef"><a id="ipp_t">ipp_t</a></h3>
5928 <p class="description">IPP request/response data</p>
5929 <p class="code">
5930typedef struct _ipp_s ipp_t;
798d6e29
MS
5931</p>
5932 <h2 class="title"><a id="STRUCTURES">Structures</a></h2>
798d6e29
MS
5933<h3 class="struct"><a id="cups_dest_s">cups_dest_s</a></h3>
5934 <p class="description">Destination</p>
5935<p class="code">struct cups_dest_s {<br>
5936&#160;&#160;&#160;&#160;char *name, *instance;<br>
5937&#160;&#160;&#160;&#160;int is_default;<br>
5938&#160;&#160;&#160;&#160;int num_options;<br>
5939&#160;&#160;&#160;&#160;<a href="#cups_option_t">cups_option_t</a> *options;<br>
5940};</p>
5941<h4 class="members">Members</h4>
98d88c8d
MS
5942<table class="list"><tbody>
5943<tr><th>instance </th>
5944 <td class="description">Local instance name or NULL</td></tr>
5945<tr><th>is_default </th>
5946 <td class="description">Is this printer the default?</td></tr>
5947<tr><th>num_options </th>
5948 <td class="description">Number of options</td></tr>
5949<tr><th>options </th>
5950 <td class="description">Options</td></tr>
5951</tbody></table>
798d6e29
MS
5952<h3 class="struct"><a id="cups_job_s">cups_job_s</a></h3>
5953 <p class="description">Job</p>
5954<p class="code">struct cups_job_s {<br>
5955&#160;&#160;&#160;&#160;time_t completed_time;<br>
5956&#160;&#160;&#160;&#160;time_t creation_time;<br>
5957&#160;&#160;&#160;&#160;char *dest;<br>
5958&#160;&#160;&#160;&#160;char *format;<br>
5959&#160;&#160;&#160;&#160;int id;<br>
5960&#160;&#160;&#160;&#160;int priority;<br>
5961&#160;&#160;&#160;&#160;time_t processing_time;<br>
5962&#160;&#160;&#160;&#160;int size;<br>
5963&#160;&#160;&#160;&#160;ipp_jstate_t state;<br>
5964&#160;&#160;&#160;&#160;char *title;<br>
5965&#160;&#160;&#160;&#160;char *user;<br>
5966};</p>
5967<h4 class="members">Members</h4>
98d88c8d
MS
5968<table class="list"><tbody>
5969<tr><th>completed_time </th>
5970 <td class="description">Time the job was completed</td></tr>
5971<tr><th>creation_time </th>
5972 <td class="description">Time the job was created</td></tr>
5973<tr><th>dest </th>
5974 <td class="description">Printer or class name</td></tr>
5975<tr><th>format </th>
5976 <td class="description">Document format</td></tr>
5977<tr><th>id </th>
5978 <td class="description">The job ID</td></tr>
5979<tr><th>priority </th>
5980 <td class="description">Priority (1-100)</td></tr>
5981<tr><th>processing_time </th>
5982 <td class="description">Time the job was processed</td></tr>
5983<tr><th>size </th>
5984 <td class="description">Size in kilobytes</td></tr>
5985<tr><th>state </th>
5986 <td class="description">Job state</td></tr>
5987<tr><th>title </th>
5988 <td class="description">Title/job name</td></tr>
5989<tr><th>user </th>
5990 <td class="description">User that submitted the job</td></tr>
5991</tbody></table>
798d6e29
MS
5992<h3 class="struct"><a id="cups_option_s">cups_option_s</a></h3>
5993 <p class="description">Printer Options</p>
5994<p class="code">struct cups_option_s {<br>
5995&#160;&#160;&#160;&#160;char *name;<br>
5996&#160;&#160;&#160;&#160;char *value;<br>
5997};</p>
5998<h4 class="members">Members</h4>
98d88c8d
MS
5999<table class="list"><tbody>
6000<tr><th>name </th>
6001 <td class="description">Name of option</td></tr>
6002<tr><th>value </th>
6003 <td class="description">Value of option</td></tr>
6004</tbody></table>
798d6e29
MS
6005<h3 class="struct"><span class="info">&#160;CUPS 1.6/macOS 10.8&#160;</span><a id="cups_size_s">cups_size_s</a></h3>
6006 <p class="description">Media Size </p>
6007<p class="code">struct cups_size_s {<br>
6008&#160;&#160;&#160;&#160;char media[128];<br>
6009&#160;&#160;&#160;&#160;int width, length, bottom, left, right, top;<br>
6010};</p>
6011<h4 class="members">Members</h4>
98d88c8d
MS
6012<table class="list"><tbody>
6013<tr><th>media[128] </th>
6014 <td class="description">Media name to use</td></tr>
6015<tr><th>top </th>
6016 <td class="description">Top margin in hundredths of
6017millimeters</td></tr>
6018</tbody></table>
798d6e29 6019 <h2 class="title"><a id="ENUMERATIONS">Constants</a></h2>
798d6e29
MS
6020 <h3 class="enumeration"><a id="cups_ptype_e">cups_ptype_e</a></h3>
6021 <p class="description">Printer type/capability bit
6022constants</p>
6023 <h4 class="constants">Constants</h4>
98d88c8d
MS
6024 <table class="list"><tbody>
6025 <tr><th>CUPS_PRINTER_AUTHENTICATED <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Printer requires authentication
6026</td></tr>
6027 <tr><th>CUPS_PRINTER_BIND </th> <td class="description">Can bind output</td></tr>
6028 <tr><th>CUPS_PRINTER_BW </th> <td class="description">Can do B&amp;W printing</td></tr>
6029 <tr><th>CUPS_PRINTER_CLASS </th> <td class="description">Printer class</td></tr>
6030 <tr><th>CUPS_PRINTER_COLLATE </th> <td class="description">Can quickly collate copies</td></tr>
6031 <tr><th>CUPS_PRINTER_COLOR </th> <td class="description">Can do color printing</td></tr>
6032 <tr><th>CUPS_PRINTER_COMMANDS <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Printer supports maintenance commands
6033</td></tr>
6034 <tr><th>CUPS_PRINTER_COPIES </th> <td class="description">Can do copies in hardware</td></tr>
6035 <tr><th>CUPS_PRINTER_COVER </th> <td class="description">Can cover output</td></tr>
6036 <tr><th>CUPS_PRINTER_DEFAULT </th> <td class="description">Default printer on network</td></tr>
6037 <tr><th>CUPS_PRINTER_DISCOVERED <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Printer was discovered </td></tr>
6038 <tr><th>CUPS_PRINTER_DUPLEX </th> <td class="description">Can do two-sided printing</td></tr>
6039 <tr><th>CUPS_PRINTER_FAX </th> <td class="description">Fax queue</td></tr>
6040 <tr><th>CUPS_PRINTER_LARGE </th> <td class="description">Can print on D/E/A1/A0-size media</td></tr>
6041 <tr><th>CUPS_PRINTER_LOCAL </th> <td class="description">Local printer or class</td></tr>
6042 <tr><th>CUPS_PRINTER_MEDIUM </th> <td class="description">Can print on Tabloid/B/C/A3/A2-size media</td></tr>
6043 <tr><th>CUPS_PRINTER_NOT_SHARED <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Printer is not shared
6044</td></tr>
6045 <tr><th>CUPS_PRINTER_PUNCH </th> <td class="description">Can punch output</td></tr>
6046 <tr><th>CUPS_PRINTER_REJECTING </th> <td class="description">Printer is rejecting jobs</td></tr>
6047 <tr><th>CUPS_PRINTER_REMOTE </th> <td class="description">Remote printer or class</td></tr>
6048 <tr><th>CUPS_PRINTER_SMALL </th> <td class="description">Can print on Letter/Legal/A4-size media</td></tr>
6049 <tr><th>CUPS_PRINTER_SORT </th> <td class="description">Can sort output</td></tr>
6050 <tr><th>CUPS_PRINTER_STAPLE </th> <td class="description">Can staple output</td></tr>
6051 <tr><th>CUPS_PRINTER_VARIABLE </th> <td class="description">Can print on rolls and custom-size media</td></tr>
6052</tbody></table>
798d6e29
MS
6053 <h3 class="enumeration"><a id="http_encoding_e">http_encoding_e</a></h3>
6054 <p class="description">HTTP transfer encoding values</p>
6055 <h4 class="constants">Constants</h4>
98d88c8d
MS
6056 <table class="list"><tbody>
6057 <tr><th>HTTP_ENCODING_CHUNKED </th> <td class="description">Data is chunked</td></tr>
6058 <tr><th>HTTP_ENCODING_FIELDS </th> <td class="description">Sending HTTP fields</td></tr>
6059 <tr><th>HTTP_ENCODING_LENGTH </th> <td class="description">Data is sent with Content-Length</td></tr>
6060</tbody></table>
798d6e29
MS
6061 <h3 class="enumeration"><a id="http_encryption_e">http_encryption_e</a></h3>
6062 <p class="description">HTTP encryption values</p>
6063 <h4 class="constants">Constants</h4>
98d88c8d
MS
6064 <table class="list"><tbody>
6065 <tr><th>HTTP_ENCRYPTION_ALWAYS </th> <td class="description">Always encrypt (SSL)</td></tr>
6066 <tr><th>HTTP_ENCRYPTION_IF_REQUESTED </th> <td class="description">Encrypt if requested (TLS upgrade)</td></tr>
6067 <tr><th>HTTP_ENCRYPTION_NEVER </th> <td class="description">Never encrypt</td></tr>
6068 <tr><th>HTTP_ENCRYPTION_REQUIRED </th> <td class="description">Encryption is required (TLS upgrade)</td></tr>
6069</tbody></table>
798d6e29
MS
6070 <h3 class="enumeration"><a id="http_field_e">http_field_e</a></h3>
6071 <p class="description">HTTP field names</p>
6072 <h4 class="constants">Constants</h4>
98d88c8d
MS
6073 <table class="list"><tbody>
6074 <tr><th>HTTP_FIELD_ACCEPT_ENCODING <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">Accepting-Encoding field </td></tr>
6075 <tr><th>HTTP_FIELD_ACCEPT_LANGUAGE </th> <td class="description">Accept-Language field</td></tr>
6076 <tr><th>HTTP_FIELD_ACCEPT_RANGES </th> <td class="description">Accept-Ranges field</td></tr>
6077 <tr><th>HTTP_FIELD_ALLOW <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">Allow field </td></tr>
6078 <tr><th>HTTP_FIELD_AUTHORIZATION </th> <td class="description">Authorization field</td></tr>
6079 <tr><th>HTTP_FIELD_CONNECTION </th> <td class="description">Connection field</td></tr>
6080 <tr><th>HTTP_FIELD_CONTENT_ENCODING </th> <td class="description">Content-Encoding field</td></tr>
6081 <tr><th>HTTP_FIELD_CONTENT_LANGUAGE </th> <td class="description">Content-Language field</td></tr>
6082 <tr><th>HTTP_FIELD_CONTENT_LENGTH </th> <td class="description">Content-Length field</td></tr>
6083 <tr><th>HTTP_FIELD_CONTENT_LOCATION </th> <td class="description">Content-Location field</td></tr>
6084 <tr><th>HTTP_FIELD_CONTENT_MD5 </th> <td class="description">Content-MD5 field</td></tr>
6085 <tr><th>HTTP_FIELD_CONTENT_RANGE </th> <td class="description">Content-Range field</td></tr>
6086 <tr><th>HTTP_FIELD_CONTENT_TYPE </th> <td class="description">Content-Type field</td></tr>
6087 <tr><th>HTTP_FIELD_CONTENT_VERSION </th> <td class="description">Content-Version field</td></tr>
6088 <tr><th>HTTP_FIELD_DATE </th> <td class="description">Date field</td></tr>
6089 <tr><th>HTTP_FIELD_HOST </th> <td class="description">Host field</td></tr>
6090 <tr><th>HTTP_FIELD_IF_MODIFIED_SINCE </th> <td class="description">If-Modified-Since field</td></tr>
6091 <tr><th>HTTP_FIELD_IF_UNMODIFIED_SINCE </th> <td class="description">If-Unmodified-Since field</td></tr>
6092 <tr><th>HTTP_FIELD_KEEP_ALIVE </th> <td class="description">Keep-Alive field</td></tr>
6093 <tr><th>HTTP_FIELD_LAST_MODIFIED </th> <td class="description">Last-Modified field</td></tr>
6094 <tr><th>HTTP_FIELD_LINK </th> <td class="description">Link field</td></tr>
6095 <tr><th>HTTP_FIELD_LOCATION </th> <td class="description">Location field</td></tr>
6096 <tr><th>HTTP_FIELD_MAX </th> <td class="description">Maximum field index</td></tr>
6097 <tr><th>HTTP_FIELD_RANGE </th> <td class="description">Range field</td></tr>
6098 <tr><th>HTTP_FIELD_REFERER </th> <td class="description">Referer field</td></tr>
6099 <tr><th>HTTP_FIELD_RETRY_AFTER </th> <td class="description">Retry-After field</td></tr>
6100 <tr><th>HTTP_FIELD_SERVER <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">Server field </td></tr>
6101 <tr><th>HTTP_FIELD_TRANSFER_ENCODING </th> <td class="description">Transfer-Encoding field</td></tr>
6102 <tr><th>HTTP_FIELD_UNKNOWN </th> <td class="description">Unknown field</td></tr>
6103 <tr><th>HTTP_FIELD_UPGRADE </th> <td class="description">Upgrade field</td></tr>
6104 <tr><th>HTTP_FIELD_USER_AGENT </th> <td class="description">User-Agent field</td></tr>
6105 <tr><th>HTTP_FIELD_WWW_AUTHENTICATE </th> <td class="description">WWW-Authenticate field</td></tr>
6106</tbody></table>
798d6e29
MS
6107 <h3 class="enumeration"><a id="http_keepalive_e">http_keepalive_e</a></h3>
6108 <p class="description">HTTP keep-alive values</p>
6109 <h4 class="constants">Constants</h4>
98d88c8d
MS
6110 <table class="list"><tbody>
6111 <tr><th>HTTP_KEEPALIVE_OFF </th> <td class="description">No keep alive support</td></tr>
6112 <tr><th>HTTP_KEEPALIVE_ON </th> <td class="description">Use keep alive</td></tr>
6113</tbody></table>
798d6e29
MS
6114 <h3 class="enumeration"><a id="http_state_e">http_state_e</a></h3>
6115 <p class="description">HTTP state values; states
6116are server-oriented...</p>
6117 <h4 class="constants">Constants</h4>
98d88c8d
MS
6118 <table class="list"><tbody>
6119 <tr><th>HTTP_STATE_CONNECT </th> <td class="description">CONNECT command, waiting for blank line</td></tr>
6120 <tr><th>HTTP_STATE_DELETE </th> <td class="description">DELETE command, waiting for blank line</td></tr>
6121 <tr><th>HTTP_STATE_ERROR </th> <td class="description">Error on socket</td></tr>
6122 <tr><th>HTTP_STATE_GET </th> <td class="description">GET command, waiting for blank line</td></tr>
6123 <tr><th>HTTP_STATE_GET_SEND </th> <td class="description">GET command, sending data</td></tr>
6124 <tr><th>HTTP_STATE_HEAD </th> <td class="description">HEAD command, waiting for blank line</td></tr>
6125 <tr><th>HTTP_STATE_OPTIONS </th> <td class="description">OPTIONS command, waiting for blank line</td></tr>
6126 <tr><th>HTTP_STATE_POST </th> <td class="description">POST command, waiting for blank line</td></tr>
6127 <tr><th>HTTP_STATE_POST_RECV </th> <td class="description">POST command, receiving data</td></tr>
6128 <tr><th>HTTP_STATE_POST_SEND </th> <td class="description">POST command, sending data</td></tr>
6129 <tr><th>HTTP_STATE_PUT </th> <td class="description">PUT command, waiting for blank line</td></tr>
6130 <tr><th>HTTP_STATE_PUT_RECV </th> <td class="description">PUT command, receiving data</td></tr>
6131 <tr><th>HTTP_STATE_STATUS </th> <td class="description">Command complete, sending status</td></tr>
6132 <tr><th>HTTP_STATE_TRACE </th> <td class="description">TRACE command, waiting for blank line</td></tr>
6133 <tr><th>HTTP_STATE_UNKNOWN_METHOD <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">Unknown request method, waiting for blank line </td></tr>
6134 <tr><th>HTTP_STATE_UNKNOWN_VERSION <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">Unknown request method, waiting for blank line </td></tr>
6135 <tr><th>HTTP_STATE_WAITING </th> <td class="description">Waiting for command</td></tr>
6136</tbody></table>
798d6e29
MS
6137 <h3 class="enumeration"><a id="http_status_e">http_status_e</a></h3>
6138 <p class="description">HTTP status codes</p>
6139 <h4 class="constants">Constants</h4>
98d88c8d
MS
6140 <table class="list"><tbody>
6141 <tr><th>HTTP_STATUS_ACCEPTED </th> <td class="description">DELETE command was successful</td></tr>
6142 <tr><th>HTTP_STATUS_BAD_GATEWAY </th> <td class="description">Bad gateway</td></tr>
6143 <tr><th>HTTP_STATUS_BAD_REQUEST </th> <td class="description">Bad request</td></tr>
6144 <tr><th>HTTP_STATUS_CONFLICT </th> <td class="description">Request is self-conflicting</td></tr>
6145 <tr><th>HTTP_STATUS_CONTINUE </th> <td class="description">Everything OK, keep going...</td></tr>
6146 <tr><th>HTTP_STATUS_CREATED </th> <td class="description">PUT command was successful</td></tr>
6147 <tr><th>HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED <span class="info">&#160;CUPS 1.4&#160;</span></th> <td class="description">User canceled authorization </td></tr>
6148 <tr><th>HTTP_STATUS_CUPS_PKI_ERROR <span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span></th> <td class="description">Error negotiating a secure connection </td></tr>
6149 <tr><th>HTTP_STATUS_ERROR </th> <td class="description">An error response from httpXxxx()</td></tr>
6150 <tr><th>HTTP_STATUS_EXPECTATION_FAILED </th> <td class="description">The expectation given in an Expect header field was not met</td></tr>
6151 <tr><th>HTTP_STATUS_FORBIDDEN </th> <td class="description">Forbidden to access this URI</td></tr>
6152 <tr><th>HTTP_STATUS_GATEWAY_TIMEOUT </th> <td class="description">Gateway connection timed out</td></tr>
6153 <tr><th>HTTP_STATUS_GONE </th> <td class="description">Server has gone away</td></tr>
6154 <tr><th>HTTP_STATUS_LENGTH_REQUIRED </th> <td class="description">A content length or encoding is required</td></tr>
6155 <tr><th>HTTP_STATUS_METHOD_NOT_ALLOWED </th> <td class="description">Method is not allowed</td></tr>
6156 <tr><th>HTTP_STATUS_MOVED_PERMANENTLY </th> <td class="description">Document has moved permanently</td></tr>
6157 <tr><th>HTTP_STATUS_MOVED_TEMPORARILY </th> <td class="description">Document has moved temporarily</td></tr>
6158 <tr><th>HTTP_STATUS_MULTIPLE_CHOICES </th> <td class="description">Multiple files match request</td></tr>
6159 <tr><th>HTTP_STATUS_NONE <span class="info">&#160;CUPS 1.7/macOS 10.9&#160;</span></th> <td class="description">No Expect value </td></tr>
6160 <tr><th>HTTP_STATUS_NOT_ACCEPTABLE </th> <td class="description">Not Acceptable</td></tr>
6161 <tr><th>HTTP_STATUS_NOT_AUTHORITATIVE </th> <td class="description">Information isn't authoritative</td></tr>
6162 <tr><th>HTTP_STATUS_NOT_FOUND </th> <td class="description">URI was not found</td></tr>
6163 <tr><th>HTTP_STATUS_NOT_IMPLEMENTED </th> <td class="description">Feature not implemented</td></tr>
6164 <tr><th>HTTP_STATUS_NOT_MODIFIED </th> <td class="description">File not modified</td></tr>
6165 <tr><th>HTTP_STATUS_NOT_SUPPORTED </th> <td class="description">HTTP version not supported</td></tr>
6166 <tr><th>HTTP_STATUS_NO_CONTENT </th> <td class="description">Successful command, no new data</td></tr>
6167 <tr><th>HTTP_STATUS_OK </th> <td class="description">OPTIONS/GET/HEAD/POST/TRACE command was successful</td></tr>
6168 <tr><th>HTTP_STATUS_PARTIAL_CONTENT </th> <td class="description">Only a partial file was received/sent</td></tr>
6169 <tr><th>HTTP_STATUS_PAYMENT_REQUIRED </th> <td class="description">Payment required</td></tr>
6170 <tr><th>HTTP_STATUS_PRECONDITION </th> <td class="description">Precondition failed</td></tr>
6171 <tr><th>HTTP_STATUS_PROXY_AUTHENTICATION </th> <td class="description">Proxy Authentication is Required</td></tr>
6172 <tr><th>HTTP_STATUS_REQUESTED_RANGE </th> <td class="description">The requested range is not satisfiable</td></tr>
6173 <tr><th>HTTP_STATUS_REQUEST_TIMEOUT </th> <td class="description">Request timed out</td></tr>
6174 <tr><th>HTTP_STATUS_REQUEST_TOO_LARGE </th> <td class="description">Request entity too large</td></tr>
6175 <tr><th>HTTP_STATUS_RESET_CONTENT </th> <td class="description">Content was reset/recreated</td></tr>
6176 <tr><th>HTTP_STATUS_SEE_OTHER </th> <td class="description">See this other link...</td></tr>
6177 <tr><th>HTTP_STATUS_SERVER_ERROR </th> <td class="description">Internal server error</td></tr>
6178 <tr><th>HTTP_STATUS_SERVICE_UNAVAILABLE </th> <td class="description">Service is unavailable</td></tr>
6179 <tr><th>HTTP_STATUS_SWITCHING_PROTOCOLS </th> <td class="description">HTTP upgrade to TLS/SSL</td></tr>
6180 <tr><th>HTTP_STATUS_UNAUTHORIZED </th> <td class="description">Unauthorized to access host</td></tr>
6181 <tr><th>HTTP_STATUS_UNSUPPORTED_MEDIATYPE </th> <td class="description">The requested media type is unsupported</td></tr>
6182 <tr><th>HTTP_STATUS_UPGRADE_REQUIRED </th> <td class="description">Upgrade to SSL/TLS required</td></tr>
6183 <tr><th>HTTP_STATUS_URI_TOO_LONG </th> <td class="description">URI too long</td></tr>
6184 <tr><th>HTTP_STATUS_USE_PROXY </th> <td class="description">Must use a proxy to access this URI</td></tr>
6185</tbody></table>
798d6e29
MS
6186 <h3 class="enumeration"><a id="http_trust_e"><span class="info">&#160;CUPS 2.0/OS 10.10&#160;</span>http_trust_e</a></h3>
6187 <p class="description">Level of trust for credentials </p>
6188 <h4 class="constants">Constants</h4>
98d88c8d
MS
6189 <table class="list"><tbody>
6190 <tr><th>HTTP_TRUST_CHANGED </th> <td class="description">Credentials have changed</td></tr>
6191 <tr><th>HTTP_TRUST_EXPIRED </th> <td class="description">Credentials are expired</td></tr>
6192 <tr><th>HTTP_TRUST_INVALID </th> <td class="description">Credentials are invalid</td></tr>
6193 <tr><th>HTTP_TRUST_OK </th> <td class="description">Credentials are OK/trusted</td></tr>
6194 <tr><th>HTTP_TRUST_RENEWED </th> <td class="description">Credentials have been renewed</td></tr>
6195 <tr><th>HTTP_TRUST_UNKNOWN </th> <td class="description">Credentials are unknown/new</td></tr>
6196</tbody></table>
798d6e29
MS
6197 <h3 class="enumeration"><a id="http_uri_coding_e">http_uri_coding_e</a></h3>
6198 <p class="description">URI en/decode flags</p>
6199 <h4 class="constants">Constants</h4>
98d88c8d
MS
6200 <table class="list"><tbody>
6201 <tr><th>HTTP_URI_CODING_ALL </th> <td class="description">En/decode everything</td></tr>
6202 <tr><th>HTTP_URI_CODING_HOSTNAME </th> <td class="description">En/decode the hostname portion</td></tr>
6203 <tr><th>HTTP_URI_CODING_MOST </th> <td class="description">En/decode all but the query</td></tr>
6204 <tr><th>HTTP_URI_CODING_NONE </th> <td class="description">Don't en/decode anything</td></tr>
6205 <tr><th>HTTP_URI_CODING_QUERY </th> <td class="description">En/decode the query portion</td></tr>
6206 <tr><th>HTTP_URI_CODING_RESOURCE </th> <td class="description">En/decode the resource portion</td></tr>
6207 <tr><th>HTTP_URI_CODING_RFC6874 </th> <td class="description">Use RFC 6874 address format</td></tr>
6208 <tr><th>HTTP_URI_CODING_USERNAME </th> <td class="description">En/decode the username portion</td></tr>
6209</tbody></table>
798d6e29
MS
6210 <h3 class="enumeration"><a id="http_uri_status_e"><span class="info">&#160;CUPS 1.2&#160;</span>http_uri_status_e</a></h3>
6211 <p class="description">URI separation status </p>
6212 <h4 class="constants">Constants</h4>
98d88c8d
MS
6213 <table class="list"><tbody>
6214 <tr><th>HTTP_URI_STATUS_BAD_ARGUMENTS </th> <td class="description">Bad arguments to function (error)</td></tr>
6215 <tr><th>HTTP_URI_STATUS_BAD_HOSTNAME </th> <td class="description">Bad hostname in URI (error)</td></tr>
6216 <tr><th>HTTP_URI_STATUS_BAD_PORT </th> <td class="description">Bad port number in URI (error)</td></tr>
6217 <tr><th>HTTP_URI_STATUS_BAD_RESOURCE </th> <td class="description">Bad resource in URI (error)</td></tr>
6218 <tr><th>HTTP_URI_STATUS_BAD_SCHEME </th> <td class="description">Bad scheme in URI (error)</td></tr>
6219 <tr><th>HTTP_URI_STATUS_BAD_URI </th> <td class="description">Bad/empty URI (error)</td></tr>
6220 <tr><th>HTTP_URI_STATUS_BAD_USERNAME </th> <td class="description">Bad username in URI (error)</td></tr>
6221 <tr><th>HTTP_URI_STATUS_MISSING_RESOURCE </th> <td class="description">Missing resource in URI (warning)</td></tr>
6222 <tr><th>HTTP_URI_STATUS_MISSING_SCHEME </th> <td class="description">Missing scheme in URI (warning)</td></tr>
6223 <tr><th>HTTP_URI_STATUS_OK </th> <td class="description">URI decoded OK</td></tr>
6224 <tr><th>HTTP_URI_STATUS_OVERFLOW </th> <td class="description">URI buffer for httpAssembleURI is too small</td></tr>
6225 <tr><th>HTTP_URI_STATUS_UNKNOWN_SCHEME </th> <td class="description">Unknown scheme in URI (warning)</td></tr>
6226</tbody></table>
798d6e29 6227 <h3 class="enumeration"><a id="ipp_finishings_e">ipp_finishings_e</a></h3>
718ee2ff 6228 <p class="description">Finishings values</p>
798d6e29 6229 <h4 class="constants">Constants</h4>
98d88c8d
MS
6230 <table class="list"><tbody>
6231 <tr><th>IPP_FINISHINGS_BALE </th> <td class="description">Bale (any type)</td></tr>
6232 <tr><th>IPP_FINISHINGS_BIND </th> <td class="description">Bind</td></tr>
6233 <tr><th>IPP_FINISHINGS_BIND_BOTTOM </th> <td class="description">Bind on bottom</td></tr>
6234 <tr><th>IPP_FINISHINGS_BIND_LEFT </th> <td class="description">Bind on left</td></tr>
6235 <tr><th>IPP_FINISHINGS_BIND_RIGHT </th> <td class="description">Bind on right</td></tr>
6236 <tr><th>IPP_FINISHINGS_BIND_TOP </th> <td class="description">Bind on top</td></tr>
6237 <tr><th>IPP_FINISHINGS_BOOKLET_MAKER </th> <td class="description">Fold to make booklet</td></tr>
6238 <tr><th>IPP_FINISHINGS_COAT </th> <td class="description">Apply protective liquid or powder coating</td></tr>
6239 <tr><th>IPP_FINISHINGS_COVER </th> <td class="description">Add cover</td></tr>
6240 <tr><th>IPP_FINISHINGS_EDGE_STITCH </th> <td class="description">Stitch along any side</td></tr>
6241 <tr><th>IPP_FINISHINGS_EDGE_STITCH_BOTTOM </th> <td class="description">Stitch along bottom edge</td></tr>
6242 <tr><th>IPP_FINISHINGS_EDGE_STITCH_LEFT </th> <td class="description">Stitch along left side</td></tr>
6243 <tr><th>IPP_FINISHINGS_EDGE_STITCH_RIGHT </th> <td class="description">Stitch along right side</td></tr>
6244 <tr><th>IPP_FINISHINGS_EDGE_STITCH_TOP </th> <td class="description">Stitch along top edge</td></tr>
6245 <tr><th>IPP_FINISHINGS_FOLD </th> <td class="description">Fold (any type)</td></tr>
6246 <tr><th>IPP_FINISHINGS_FOLD_ACCORDIAN </th> <td class="description">Accordian-fold the paper vertically into four sections</td></tr>
6247 <tr><th>IPP_FINISHINGS_FOLD_DOUBLE_GATE </th> <td class="description">Fold the top and bottom quarters of the paper towards the midline, then fold in half vertically</td></tr>
6248 <tr><th>IPP_FINISHINGS_FOLD_ENGINEERING_Z </th> <td class="description">Fold the paper vertically into two small sections and one larger, forming an elongated Z</td></tr>
6249 <tr><th>IPP_FINISHINGS_FOLD_GATE </th> <td class="description">Fold the top and bottom quarters of the paper towards the midline</td></tr>
6250 <tr><th>IPP_FINISHINGS_FOLD_HALF </th> <td class="description">Fold the paper in half vertically</td></tr>
6251 <tr><th>IPP_FINISHINGS_FOLD_HALF_Z </th> <td class="description">Fold the paper in half horizontally, then Z-fold the paper vertically</td></tr>
6252 <tr><th>IPP_FINISHINGS_FOLD_LEFT_GATE </th> <td class="description">Fold the top quarter of the paper towards the midline</td></tr>
6253 <tr><th>IPP_FINISHINGS_FOLD_LETTER </th> <td class="description">Fold the paper into three sections vertically; sometimes also known as a C fold</td></tr>
6254 <tr><th>IPP_FINISHINGS_FOLD_PARALLEL </th> <td class="description">Fold the paper in half vertically two times, yielding four sections</td></tr>
6255 <tr><th>IPP_FINISHINGS_FOLD_POSTER </th> <td class="description">Fold the paper in half horizontally and vertically; sometimes also called a cross fold</td></tr>
6256 <tr><th>IPP_FINISHINGS_FOLD_RIGHT_GATE </th> <td class="description">Fold the bottom quarter of the paper towards the midline</td></tr>
6257 <tr><th>IPP_FINISHINGS_FOLD_Z </th> <td class="description">Fold the paper vertically into three sections, forming a Z</td></tr>
6258 <tr><th>IPP_FINISHINGS_JOG_OFFSET </th> <td class="description">Offset for binding (any type)</td></tr>
6259 <tr><th>IPP_FINISHINGS_LAMINATE </th> <td class="description">Apply protective (solid) material</td></tr>
6260 <tr><th>IPP_FINISHINGS_NONE </th> <td class="description">No finishing</td></tr>
6261 <tr><th>IPP_FINISHINGS_PUNCH </th> <td class="description">Punch (any location/count)</td></tr>
6262 <tr><th>IPP_FINISHINGS_PUNCH_BOTTOM_LEFT </th> <td class="description">Punch 1 hole bottom left</td></tr>
6263 <tr><th>IPP_FINISHINGS_PUNCH_BOTTOM_RIGHT </th> <td class="description">Punch 1 hole bottom right</td></tr>
6264 <tr><th>IPP_FINISHINGS_PUNCH_DUAL_BOTTOM </th> <td class="description">Punch 2 holes bottom edge</td></tr>
6265 <tr><th>IPP_FINISHINGS_PUNCH_DUAL_LEFT </th> <td class="description">Punch 2 holes left side</td></tr>
6266 <tr><th>IPP_FINISHINGS_PUNCH_DUAL_RIGHT </th> <td class="description">Punch 2 holes right side</td></tr>
6267 <tr><th>IPP_FINISHINGS_PUNCH_DUAL_TOP </th> <td class="description">Punch 2 holes top edge</td></tr>
6268 <tr><th>IPP_FINISHINGS_PUNCH_MULTIPLE_BOTTOM </th> <td class="description">Pucnh multiple holes bottom edge</td></tr>
6269 <tr><th>IPP_FINISHINGS_PUNCH_MULTIPLE_LEFT </th> <td class="description">Pucnh multiple holes left side</td></tr>
6270 <tr><th>IPP_FINISHINGS_PUNCH_MULTIPLE_RIGHT </th> <td class="description">Pucnh multiple holes right side</td></tr>
6271 <tr><th>IPP_FINISHINGS_PUNCH_MULTIPLE_TOP </th> <td class="description">Pucnh multiple holes top edge</td></tr>
6272 <tr><th>IPP_FINISHINGS_PUNCH_QUAD_BOTTOM </th> <td class="description">Punch 4 holes bottom edge</td></tr>
6273 <tr><th>IPP_FINISHINGS_PUNCH_QUAD_LEFT </th> <td class="description">Punch 4 holes left side</td></tr>
6274 <tr><th>IPP_FINISHINGS_PUNCH_QUAD_RIGHT </th> <td class="description">Punch 4 holes right side</td></tr>
6275 <tr><th>IPP_FINISHINGS_PUNCH_QUAD_TOP </th> <td class="description">Punch 4 holes top edge</td></tr>
6276 <tr><th>IPP_FINISHINGS_PUNCH_TOP_LEFT </th> <td class="description">Punch 1 hole top left</td></tr>
6277 <tr><th>IPP_FINISHINGS_PUNCH_TOP_RIGHT </th> <td class="description">Punch 1 hole top right</td></tr>
6278 <tr><th>IPP_FINISHINGS_PUNCH_TRIPLE_BOTTOM </th> <td class="description">Punch 3 holes bottom edge</td></tr>
6279 <tr><th>IPP_FINISHINGS_PUNCH_TRIPLE_LEFT </th> <td class="description">Punch 3 holes left side</td></tr>
6280 <tr><th>IPP_FINISHINGS_PUNCH_TRIPLE_RIGHT </th> <td class="description">Punch 3 holes right side</td></tr>
6281 <tr><th>IPP_FINISHINGS_PUNCH_TRIPLE_TOP </th> <td class="description">Punch 3 holes top edge</td></tr>
6282 <tr><th>IPP_FINISHINGS_SADDLE_STITCH </th> <td class="description">Staple interior</td></tr>
6283 <tr><th>IPP_FINISHINGS_STAPLE </th> <td class="description">Staple (any location/method)</td></tr>
6284 <tr><th>IPP_FINISHINGS_STAPLE_BOTTOM_LEFT </th> <td class="description">Staple bottom left corner</td></tr>
6285 <tr><th>IPP_FINISHINGS_STAPLE_BOTTOM_RIGHT </th> <td class="description">Staple bottom right corner</td></tr>
6286 <tr><th>IPP_FINISHINGS_STAPLE_DUAL_BOTTOM </th> <td class="description">Two staples on bottom</td></tr>
6287 <tr><th>IPP_FINISHINGS_STAPLE_DUAL_LEFT </th> <td class="description">Two staples on left</td></tr>
6288 <tr><th>IPP_FINISHINGS_STAPLE_DUAL_RIGHT </th> <td class="description">Two staples on right</td></tr>
6289 <tr><th>IPP_FINISHINGS_STAPLE_DUAL_TOP </th> <td class="description">Two staples on top</td></tr>
6290 <tr><th>IPP_FINISHINGS_STAPLE_TOP_LEFT </th> <td class="description">Staple top left corner</td></tr>
6291 <tr><th>IPP_FINISHINGS_STAPLE_TOP_RIGHT </th> <td class="description">Staple top right corner</td></tr>
6292 <tr><th>IPP_FINISHINGS_STAPLE_TRIPLE_BOTTOM </th> <td class="description">Three staples on bottom</td></tr>
6293 <tr><th>IPP_FINISHINGS_STAPLE_TRIPLE_LEFT </th> <td class="description">Three staples on left</td></tr>
6294 <tr><th>IPP_FINISHINGS_STAPLE_TRIPLE_RIGHT </th> <td class="description">Three staples on right</td></tr>
6295 <tr><th>IPP_FINISHINGS_STAPLE_TRIPLE_TOP </th> <td class="description">Three staples on top</td></tr>
6296 <tr><th>IPP_FINISHINGS_TRIM </th> <td class="description">Trim (any type)</td></tr>
6297 <tr><th>IPP_FINISHINGS_TRIM_AFTER_COPIES </th> <td class="description">Trim output after each copy</td></tr>
6298 <tr><th>IPP_FINISHINGS_TRIM_AFTER_DOCUMENTS </th> <td class="description">Trim output after each document</td></tr>
6299 <tr><th>IPP_FINISHINGS_TRIM_AFTER_JOB </th> <td class="description">Trim output after job</td></tr>
6300 <tr><th>IPP_FINISHINGS_TRIM_AFTER_PAGES </th> <td class="description">Trim output after each page</td></tr>
6301</tbody></table>
798d6e29
MS
6302 <h3 class="enumeration"><a id="ipp_jstate_e">ipp_jstate_e</a></h3>
6303 <p class="description">Job states</p>
6304 <h4 class="constants">Constants</h4>
98d88c8d
MS
6305 <table class="list"><tbody>
6306 <tr><th>IPP_JSTATE_ABORTED </th> <td class="description">Job has aborted due to error</td></tr>
6307 <tr><th>IPP_JSTATE_CANCELED </th> <td class="description">Job has been canceled</td></tr>
6308 <tr><th>IPP_JSTATE_COMPLETED </th> <td class="description">Job has completed successfully</td></tr>
6309 <tr><th>IPP_JSTATE_HELD </th> <td class="description">Job is held for printing</td></tr>
6310 <tr><th>IPP_JSTATE_PENDING </th> <td class="description">Job is waiting to be printed</td></tr>
6311 <tr><th>IPP_JSTATE_PROCESSING </th> <td class="description">Job is currently printing</td></tr>
6312 <tr><th>IPP_JSTATE_STOPPED </th> <td class="description">Job has been stopped</td></tr>
6313</tbody></table>
798d6e29
MS
6314 <h3 class="enumeration"><a id="ipp_op_e">ipp_op_e</a></h3>
6315 <p class="description">IPP operations</p>
6316 <h4 class="constants">Constants</h4>
98d88c8d 6317 <table class="list"><tbody>
4f63d6cd 6318 <tr><th>IPP_OP_ALLOCATE_PRINTER_RESOURCES </th> <td class="description">Allocate-Printer-Resources: Use resources for a printer.</td></tr>
98d88c8d
MS
6319 <tr><th>IPP_OP_CANCEL_CURRENT_JOB </th> <td class="description">Cancel-Current-Job: Cancel the current job</td></tr>
6320 <tr><th>IPP_OP_CANCEL_JOB </th> <td class="description">Cancel-Job: Cancel a job</td></tr>
6321 <tr><th>IPP_OP_CANCEL_JOBS </th> <td class="description">Cancel-Jobs: Cancel all jobs (administrative)</td></tr>
6322 <tr><th>IPP_OP_CANCEL_MY_JOBS </th> <td class="description">Cancel-My-Jobs: Cancel a user's jobs</td></tr>
4f63d6cd 6323 <tr><th>IPP_OP_CANCEL_RESOURCE </th> <td class="description">Cancel-Resource: Uninstall a resource.</td></tr>
98d88c8d
MS
6324 <tr><th>IPP_OP_CANCEL_SUBSCRIPTION <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Cancel-Subscription: Cancel a subscription </td></tr>
6325 <tr><th>IPP_OP_CLOSE_JOB </th> <td class="description">Close-Job: Close a job and start printing</td></tr>
6326 <tr><th>IPP_OP_CREATE_JOB </th> <td class="description">Create-Job: Create an empty print job</td></tr>
6327 <tr><th>IPP_OP_CREATE_JOB_SUBSCRIPTIONS <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Create-Job-Subscriptions: Create one of more job subscriptions </td></tr>
4f63d6cd 6328 <tr><th>IPP_OP_CREATE_PRINTER </th> <td class="description">Create-Printer: Create a new service.</td></tr>
98d88c8d 6329 <tr><th>IPP_OP_CREATE_PRINTER_SUBSCRIPTIONS <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Create-Printer-Subscriptions: Create one or more printer subscriptions </td></tr>
4f63d6cd
MS
6330 <tr><th>IPP_OP_CREATE_RESOURCE </th> <td class="description">Create-Resource: Create a new (empty) resource.</td></tr>
6331 <tr><th>IPP_OP_CREATE_RESOURCE_SUBSCRIPTIONS </th> <td class="description">Create-Resource-Subscriptions: Create event subscriptions for a resource.</td></tr>
6332 <tr><th>IPP_OP_CREATE_SYSTEM_SUBSCRIPTIONS </th> <td class="description">Create-System-Subscriptions: Create event subscriptions for a system.</td></tr>
98d88c8d
MS
6333 <tr><th>IPP_OP_CUPS_ADD_MODIFY_CLASS </th> <td class="description">CUPS-Add-Modify-Class: Add or modify a class</td></tr>
6334 <tr><th>IPP_OP_CUPS_ADD_MODIFY_PRINTER </th> <td class="description">CUPS-Add-Modify-Printer: Add or modify a printer</td></tr>
6335 <tr><th>IPP_OP_CUPS_AUTHENTICATE_JOB <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">CUPS-Authenticate-Job: Authenticate a job </td></tr>
6336 <tr><th>IPP_OP_CUPS_CREATE_LOCAL_PRINTER <span class="info">&#160;CUPS 2.2&#160;</span></th> <td class="description">CUPS-Create-Local-Printer: Create a local (temporary) printer </td></tr>
6337 <tr><th>IPP_OP_CUPS_DELETE_CLASS </th> <td class="description">CUPS-Delete-Class: Delete a class</td></tr>
6338 <tr><th>IPP_OP_CUPS_DELETE_PRINTER </th> <td class="description">CUPS-Delete-Printer: Delete a printer</td></tr>
6339 <tr><th>IPP_OP_CUPS_GET_DEFAULT </th> <td class="description">CUPS-Get-Default: Get the default printer</td></tr>
6340 <tr><th>IPP_OP_CUPS_GET_DEVICES <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">CUPS-Get-Devices: Get a list of supported devices </td></tr>
6341 <tr><th>IPP_OP_CUPS_GET_DOCUMENT <span class="info">&#160;CUPS 1.4/macOS 10.6&#160;</span></th> <td class="description">CUPS-Get-Document: Get a document file </td></tr>
6342 <tr><th>IPP_OP_CUPS_GET_PPD <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">CUPS-Get-PPD: Get a PPD file </td></tr>
6343 <tr><th>IPP_OP_CUPS_GET_PPDS <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">CUPS-Get-PPDs: Get a list of supported drivers </td></tr>
6344 <tr><th>IPP_OP_CUPS_GET_PRINTERS </th> <td class="description">CUPS-Get-Printers: Get a list of printers and/or classes</td></tr>
6345 <tr><th>IPP_OP_CUPS_INVALID </th> <td class="description">Invalid operation name for <a href="#ippOpValue"><code>ippOpValue</code></a></td></tr>
6346 <tr><th>IPP_OP_CUPS_MOVE_JOB </th> <td class="description">CUPS-Move-Job: Move a job to a different printer</td></tr>
6347 <tr><th>IPP_OP_CUPS_SET_DEFAULT </th> <td class="description">CUPS-Set-Default: Set the default printer</td></tr>
4f63d6cd
MS
6348 <tr><th>IPP_OP_DEALLOCATE_PRINTER_RESOURCES </th> <td class="description">Deallocate-Printer-Resources: Stop using resources for a printer.</td></tr>
6349 <tr><th>IPP_OP_DELETE_PRINTER </th> <td class="description">Delete-Printer: Delete an existing service.</td></tr>
6350 <tr><th>IPP_OP_DISABLE_ALL_PRINTERS </th> <td class="description">Disable-All-Printers: Stop accepting new jobs on all services.</td></tr>
98d88c8d 6351 <tr><th>IPP_OP_DISABLE_PRINTER </th> <td class="description">Disable-Printer: Reject new jobs for a printer</td></tr>
4f63d6cd 6352 <tr><th>IPP_OP_ENABLE_ALL_PRINTERS </th> <td class="description">Enable-All-Printers: Start accepting new jobs on all services.</td></tr>
98d88c8d
MS
6353 <tr><th>IPP_OP_ENABLE_PRINTER </th> <td class="description">Enable-Printer: Accept new jobs for a printer</td></tr>
6354 <tr><th>IPP_OP_GET_JOBS </th> <td class="description">Get-Jobs: Get a list of jobs</td></tr>
6355 <tr><th>IPP_OP_GET_JOB_ATTRIBUTES </th> <td class="description">Get-Job-Attribute: Get information about a job</td></tr>
6356 <tr><th>IPP_OP_GET_NOTIFICATIONS <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Get-Notifications: Get notification events </td></tr>
4f63d6cd 6357 <tr><th>IPP_OP_GET_PRINTERS </th> <td class="description">Get-Printers: Get a list of services.</td></tr>
98d88c8d
MS
6358 <tr><th>IPP_OP_GET_PRINTER_ATTRIBUTES </th> <td class="description">Get-Printer-Attributes: Get information about a printer</td></tr>
6359 <tr><th>IPP_OP_GET_PRINTER_SUPPORTED_VALUES </th> <td class="description">Get-Printer-Supported-Values: Get supported values</td></tr>
6360 <tr><th>IPP_OP_GET_SUBSCRIPTIONS <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Get-Subscriptions: Get list of subscriptions </td></tr>
6361 <tr><th>IPP_OP_GET_SUBSCRIPTION_ATTRIBUTES <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Get-Subscription-Attributes: Get subscription information </td></tr>
4f63d6cd
MS
6362 <tr><th>IPP_OP_GET_SYSTEM_ATTRIBUTES </th> <td class="description">Get-System-Attributes: Get system object attributes.</td></tr>
6363 <tr><th>IPP_OP_GET_SYSTEM_SUPPORTED_VALUES </th> <td class="description">Get-System-Supported-Values: Get supported values for system object attributes.</td></tr>
98d88c8d
MS
6364 <tr><th>IPP_OP_HOLD_JOB </th> <td class="description">Hold-Job: Hold a job for printing</td></tr>
6365 <tr><th>IPP_OP_HOLD_NEW_JOBS </th> <td class="description">Hold-New-Jobs: Hold new jobs</td></tr>
6366 <tr><th>IPP_OP_IDENTIFY_PRINTER </th> <td class="description">Identify-Printer: Make the printer beep, flash, or display a message for identification</td></tr>
4f63d6cd
MS
6367 <tr><th>IPP_OP_INSTALL_RESOURCE </th> <td class="description">Install-Resource: Install a resource.</td></tr>
6368 <tr><th>IPP_OP_PAUSE_ALL_PRINTERS </th> <td class="description">Pause-All-Printers: Stop all services immediately.</td></tr>
6369 <tr><th>IPP_OP_PAUSE_ALL_PRINTERS_AFTER_CURRENT_JOB </th> <td class="description">Pause-All-Printers-After-Current-Job: Stop all services after processing the current jobs.</td></tr>
98d88c8d
MS
6370 <tr><th>IPP_OP_PAUSE_PRINTER </th> <td class="description">Pause-Printer: Stop a printer</td></tr>
6371 <tr><th>IPP_OP_PAUSE_PRINTER_AFTER_CURRENT_JOB </th> <td class="description">Pause-Printer-After-Current-Job: Stop printer after the current job</td></tr>
6372 <tr><th>IPP_OP_PRINT_JOB </th> <td class="description">Print-Job: Print a single file</td></tr>
6373 <tr><th>IPP_OP_PROMOTE_JOB </th> <td class="description">Promote-Job: Promote a job to print sooner</td></tr>
4f63d6cd 6374 <tr><th>IPP_OP_REGISTER_OUTPUT_DEVICE </th> <td class="description">Register-Output-Device: Register a remote service.</td></tr>
98d88c8d
MS
6375 <tr><th>IPP_OP_RELEASE_HELD_NEW_JOBS </th> <td class="description">Release-Held-New-Jobs: Release new jobs that were previously held</td></tr>
6376 <tr><th>IPP_OP_RELEASE_JOB </th> <td class="description">Release-Job: Release a job for printing</td></tr>
6377 <tr><th>IPP_OP_RENEW_SUBSCRIPTION <span class="info">&#160;CUPS 1.2/macOS 10.5&#160;</span></th> <td class="description">Renew-Subscription: Renew a printer subscription </td></tr>
6378 <tr><th>IPP_OP_RESTART_JOB <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">Restart-Job: Reprint a job </td></tr>
4f63d6cd
MS
6379 <tr><th>IPP_OP_RESTART_SYSTEM </th> <td class="description">Restart-System: Restart all services.</td></tr>
6380 <tr><th>IPP_OP_RESUME_ALL_PRINTERS </th> <td class="description">Resume-All-Printers: Start job processing on all services.</td></tr>
98d88c8d
MS
6381 <tr><th>IPP_OP_RESUME_JOB </th> <td class="description">Resume-Job: Resume the current job</td></tr>
6382 <tr><th>IPP_OP_RESUME_PRINTER </th> <td class="description">Resume-Printer: Start a printer</td></tr>
6383 <tr><th>IPP_OP_SCHEDULE_JOB_AFTER </th> <td class="description">Schedule-Job-After: Schedule a job to print after another</td></tr>
6384 <tr><th>IPP_OP_SEND_DOCUMENT </th> <td class="description">Send-Document: Add a file to a job</td></tr>
4f63d6cd 6385 <tr><th>IPP_OP_SEND_RESOURCE_DATA </th> <td class="description">Send-Resource-Data: Upload the data for a resource.</td></tr>
98d88c8d
MS
6386 <tr><th>IPP_OP_SET_JOB_ATTRIBUTES </th> <td class="description">Set-Job-Attributes: Set job values</td></tr>
6387 <tr><th>IPP_OP_SET_PRINTER_ATTRIBUTES </th> <td class="description">Set-Printer-Attributes: Set printer values</td></tr>
4f63d6cd
MS
6388 <tr><th>IPP_OP_SET_RESOURCE_ATTRIBUTES </th> <td class="description">Set-Resource-Attributes: Set resource object attributes.</td></tr>
6389 <tr><th>IPP_OP_SET_SYSTEM_ATTRIBUTES </th> <td class="description">Set-System-Attributes: Set system object attributes.</td></tr>
6390 <tr><th>IPP_OP_SHUTDOWN_ALL_PRINTERS </th> <td class="description">Shutdown-All-Printers: Shutdown all services.</td></tr>
6391 <tr><th>IPP_OP_SHUTDOWN_ONE_PRINTER </th> <td class="description">Shutdown-One-Printer: Shutdown a service.</td></tr>
6392 <tr><th>IPP_OP_STARTUP_ALL_PRINTERS </th> <td class="description">Startup-All-Printers: Startup all services.</td></tr>
6393 <tr><th>IPP_OP_STARTUP_ONE_PRINTER </th> <td class="description">Startup-One-Printer: Start a service.</td></tr>
98d88c8d
MS
6394 <tr><th>IPP_OP_SUSPEND_CURRENT_JOB </th> <td class="description">Suspend-Current-Job: Suspend the current job</td></tr>
6395 <tr><th>IPP_OP_VALIDATE_JOB </th> <td class="description">Validate-Job: Validate job values prior to submission</td></tr>
6396</tbody></table>
798d6e29
MS
6397 <h3 class="enumeration"><a id="ipp_orient_e">ipp_orient_e</a></h3>
6398 <p class="description">Orientation values</p>
6399 <h4 class="constants">Constants</h4>
98d88c8d
MS
6400 <table class="list"><tbody>
6401 <tr><th>IPP_ORIENT_LANDSCAPE </th> <td class="description">90 degrees counter-clockwise</td></tr>
6402 <tr><th>IPP_ORIENT_NONE </th> <td class="description">No rotation</td></tr>
6403 <tr><th>IPP_ORIENT_PORTRAIT </th> <td class="description">No rotation</td></tr>
6404 <tr><th>IPP_ORIENT_REVERSE_LANDSCAPE </th> <td class="description">90 degrees clockwise</td></tr>
6405 <tr><th>IPP_ORIENT_REVERSE_PORTRAIT </th> <td class="description">180 degrees</td></tr>
6406</tbody></table>
798d6e29 6407 <h3 class="enumeration"><a id="ipp_pstate_e">ipp_pstate_e</a></h3>
65bebeac 6408 <p class="description">Printer state values</p>
798d6e29 6409 <h4 class="constants">Constants</h4>
98d88c8d
MS
6410 <table class="list"><tbody>
6411 <tr><th>IPP_PSTATE_IDLE </th> <td class="description">Printer is idle</td></tr>
6412 <tr><th>IPP_PSTATE_PROCESSING </th> <td class="description">Printer is working</td></tr>
6413 <tr><th>IPP_PSTATE_STOPPED </th> <td class="description">Printer is stopped</td></tr>
6414</tbody></table>
798d6e29 6415 <h3 class="enumeration"><a id="ipp_quality_e">ipp_quality_e</a></h3>
65bebeac 6416 <p class="description">Print quality values</p>
798d6e29 6417 <h4 class="constants">Constants</h4>
98d88c8d
MS
6418 <table class="list"><tbody>
6419 <tr><th>IPP_QUALITY_DRAFT </th> <td class="description">Draft quality</td></tr>
6420 <tr><th>IPP_QUALITY_HIGH </th> <td class="description">High quality</td></tr>
6421 <tr><th>IPP_QUALITY_NORMAL </th> <td class="description">Normal quality</td></tr>
6422</tbody></table>
798d6e29
MS
6423 <h3 class="enumeration"><a id="ipp_res_e">ipp_res_e</a></h3>
6424 <p class="description">Resolution units</p>
6425 <h4 class="constants">Constants</h4>
98d88c8d
MS
6426 <table class="list"><tbody>
6427 <tr><th>IPP_RES_PER_CM </th> <td class="description">Pixels per centimeter</td></tr>
6428 <tr><th>IPP_RES_PER_INCH </th> <td class="description">Pixels per inch</td></tr>
6429</tbody></table>
798d6e29 6430 <h3 class="enumeration"><a id="ipp_state_e">ipp_state_e</a></h3>
65bebeac 6431 <p class="description">ipp_t state values</p>
798d6e29 6432 <h4 class="constants">Constants</h4>
98d88c8d
MS
6433 <table class="list"><tbody>
6434 <tr><th>IPP_STATE_ATTRIBUTE </th> <td class="description">One or more attributes need to be sent/received</td></tr>
6435 <tr><th>IPP_STATE_DATA </th> <td class="description">IPP request data needs to be sent/received</td></tr>
6436 <tr><th>IPP_STATE_ERROR </th> <td class="description">An error occurred</td></tr>
6437 <tr><th>IPP_STATE_HEADER </th> <td class="description">The request header needs to be sent/received</td></tr>
6438 <tr><th>IPP_STATE_IDLE </th> <td class="description">Nothing is happening/request completed</td></tr>
6439</tbody></table>
798d6e29 6440 <h3 class="enumeration"><a id="ipp_status_e">ipp_status_e</a></h3>
65bebeac 6441 <p class="description">IPP status code values</p>
798d6e29 6442 <h4 class="constants">Constants</h4>
98d88c8d
MS
6443 <table class="list"><tbody>
6444 <tr><th>IPP_STATUS_CUPS_INVALID </th> <td class="description">Invalid status name for <a href="#ippErrorValue"><code>ippErrorValue</code></a></td></tr>
6445 <tr><th>IPP_STATUS_ERROR_ACCOUNT_AUTHORIZATION_FAILED </th> <td class="description">client-error-account-authorization-failed</td></tr>
6446 <tr><th>IPP_STATUS_ERROR_ACCOUNT_CLOSED </th> <td class="description">client-error-account-closed</td></tr>
6447 <tr><th>IPP_STATUS_ERROR_ACCOUNT_INFO_NEEDED </th> <td class="description">client-error-account-info-needed</td></tr>
6448 <tr><th>IPP_STATUS_ERROR_ACCOUNT_LIMIT_REACHED </th> <td class="description">client-error-account-limit-reached</td></tr>
6449 <tr><th>IPP_STATUS_ERROR_ATTRIBUTES_NOT_SETTABLE </th> <td class="description">client-error-attributes-not-settable</td></tr>
6450 <tr><th>IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES </th> <td class="description">client-error-attributes-or-values-not-supported</td></tr>
6451 <tr><th>IPP_STATUS_ERROR_BAD_REQUEST </th> <td class="description">client-error-bad-request</td></tr>
6452 <tr><th>IPP_STATUS_ERROR_BUSY </th> <td class="description">server-error-busy</td></tr>
6453 <tr><th>IPP_STATUS_ERROR_CHARSET </th> <td class="description">client-error-charset-not-supported</td></tr>
6454 <tr><th>IPP_STATUS_ERROR_COMPRESSION_ERROR </th> <td class="description">client-error-compression-error</td></tr>
6455 <tr><th>IPP_STATUS_ERROR_COMPRESSION_NOT_SUPPORTED </th> <td class="description">client-error-compression-not-supported</td></tr>
6456 <tr><th>IPP_STATUS_ERROR_CONFLICTING </th> <td class="description">client-error-conflicting-attributes</td></tr>
6457 <tr><th>IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">cups-error-account-authorization-failed </td></tr>
6458 <tr><th>IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED </th> <td class="description">cups-error-account-closed @deprecate@</td></tr>
6459 <tr><th>IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">cups-error-account-info-needed </td></tr>
6460 <tr><th>IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED <span class="info">&#160;DEPRECATED&#160;</span></th> <td class="description">cups-error-account-limit-reached </td></tr>
6461 <tr><th>IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED <span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span></th> <td class="description">cups-authentication-canceled - Authentication canceled by user </td></tr>
6462 <tr><th>IPP_STATUS_ERROR_CUPS_PKI <span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span></th> <td class="description">cups-pki-error - Error negotiating a secure connection </td></tr>
6463 <tr><th>IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED <span class="info">&#160;CUPS 1.5/macOS 10.7&#160;</span></th> <td class="description">cups-upgrade-required - TLS upgrade required </td></tr>
6464 <tr><th>IPP_STATUS_ERROR_DEVICE </th> <td class="description">server-error-device-error</td></tr>
6465 <tr><th>IPP_STATUS_ERROR_DOCUMENT_ACCESS </th> <td class="description">client-error-document-access-error</td></tr>
6466 <tr><th>IPP_STATUS_ERROR_DOCUMENT_FORMAT_ERROR </th> <td class="description">client-error-document-format-error</td></tr>
6467 <tr><th>IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED </th> <td class="description">client-error-document-format-not-supported</td></tr>
6468 <tr><th>IPP_STATUS_ERROR_DOCUMENT_PASSWORD </th> <td class="description">client-error-document-password-error</td></tr>
6469 <tr><th>IPP_STATUS_ERROR_DOCUMENT_PERMISSION </th> <td class="description">client-error-document-permission-error</td></tr>
6470 <tr><th>IPP_STATUS_ERROR_DOCUMENT_SECURITY </th> <td class="description">client-error-document-security-error</td></tr>
6471 <tr><th>IPP_STATUS_ERROR_DOCUMENT_UNPRINTABLE </th> <td class="description">client-error-document-unprintable-error</td></tr>
6472 <tr><th>IPP_STATUS_ERROR_FORBIDDEN </th> <td class="description">client-error-forbidden</td></tr>
6473 <tr><th>IPP_STATUS_ERROR_GONE </th> <td class="description">client-error-gone</td></tr>
6474 <tr><th>IPP_STATUS_ERROR_IGNORED_ALL_SUBSCRIPTIONS </th> <td class="description">client-error-ignored-all-subscriptions</td></tr>
6475 <tr><th>IPP_STATUS_ERROR_INTERNAL </th> <td class="description">server-error-internal-error</td></tr>
6476 <tr><th>IPP_STATUS_ERROR_JOB_CANCELED </th> <td class="description">server-error-job-canceled</td></tr>
6477 <tr><th>IPP_STATUS_ERROR_MULTIPLE_JOBS_NOT_SUPPORTED </th> <td class="description">server-error-multiple-document-jobs-not-supported</td></tr>
6478 <tr><th>IPP_STATUS_ERROR_NOT_ACCEPTING_JOBS </th> <td class="description">server-error-not-accepting-jobs</td></tr>
6479 <tr><th>IPP_STATUS_ERROR_NOT_AUTHENTICATED </th> <td class="description">client-error-not-authenticated</td></tr>
6480 <tr><th>IPP_STATUS_ERROR_NOT_AUTHORIZED </th> <td class="description">client-error-not-authorized</td></tr>
6481 <tr><th>IPP_STATUS_ERROR_NOT_FETCHABLE </th> <td class="description">client-error-not-fetchable</td></tr>
6482 <tr><th>IPP_STATUS_ERROR_NOT_FOUND </th> <td class="description">client-error-not-found</td></tr>
6483 <tr><th>IPP_STATUS_ERROR_NOT_POSSIBLE </th> <td class="description">client-error-not-possible</td></tr>
6484 <tr><th>IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED </th> <td class="description">server-error-operation-not-supported</td></tr>
6485 <tr><th>IPP_STATUS_ERROR_PRINTER_IS_DEACTIVATED </th> <td class="description">server-error-printer-is-deactivated</td></tr>
6486 <tr><th>IPP_STATUS_ERROR_REQUEST_ENTITY </th> <td class="description">client-error-request-entity-too-large</td></tr>
6487 <tr><th>IPP_STATUS_ERROR_REQUEST_VALUE </th> <td class="description">client-error-request-value-too-long</td></tr>
6488 <tr><th>IPP_STATUS_ERROR_SERVICE_UNAVAILABLE </th> <td class="description">server-error-service-unavailable</td></tr>
6489 <tr><th>IPP_STATUS_ERROR_TEMPORARY </th> <td class="description">server-error-temporary-error</td></tr>
6490 <tr><th>IPP_STATUS_ERROR_TIMEOUT </th> <td class="description">client-error-timeout</td></tr>
6491 <tr><th>IPP_STATUS_ERROR_TOO_MANY_DOCUMENTS </th> <td class="description">server-error-too-many-documents</td></tr>
6492 <tr><th>IPP_STATUS_ERROR_TOO_MANY_JOBS </th> <td class="description">server-error-too-many-jobs</td></tr>
6493 <tr><th>IPP_STATUS_ERROR_TOO_MANY_SUBSCRIPTIONS </th> <td class="description">client-error-too-many-subscriptions</td></tr>
6494 <tr><th>IPP_STATUS_ERROR_URI_SCHEME </th> <td class="description">client-error-uri-scheme-not-supported</td></tr>
6495 <tr><th>IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED </th> <td class="description">server-error-version-not-supported</td></tr>
6496 <tr><th>IPP_STATUS_OK </th> <td class="description">successful-ok</td></tr>
6497 <tr><th>IPP_STATUS_OK_CONFLICTING </th> <td class="description">successful-ok-conflicting-attributes</td></tr>
6498 <tr><th>IPP_STATUS_OK_EVENTS_COMPLETE </th> <td class="description">successful-ok-events-complete</td></tr>
6499 <tr><th>IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED </th> <td class="description">successful-ok-ignored-or-substituted-attributes</td></tr>
6500 <tr><th>IPP_STATUS_OK_IGNORED_SUBSCRIPTIONS </th> <td class="description">successful-ok-ignored-subscriptions</td></tr>
6501 <tr><th>IPP_STATUS_OK_TOO_MANY_EVENTS </th> <td class="description">successful-ok-too-many-events</td></tr>
6502</tbody></table>
798d6e29 6503 <h3 class="enumeration"><a id="ipp_tag_e">ipp_tag_e</a></h3>
65bebeac 6504 <p class="description">Value and group tag values for attributes</p>
798d6e29 6505 <h4 class="constants">Constants</h4>
98d88c8d
MS
6506 <table class="list"><tbody>
6507 <tr><th>IPP_TAG_ADMINDEFINE </th> <td class="description">Admin-defined value</td></tr>
6508 <tr><th>IPP_TAG_BOOLEAN </th> <td class="description">Boolean value</td></tr>
6509 <tr><th>IPP_TAG_CHARSET </th> <td class="description">Character set value</td></tr>
6510 <tr><th>IPP_TAG_CUPS_INVALID </th> <td class="description">Invalid tag name for <a href="#ippTagValue"><code>ippTagValue</code></a></td></tr>
6511 <tr><th>IPP_TAG_DATE </th> <td class="description">Date/time value</td></tr>
6512 <tr><th>IPP_TAG_DEFAULT </th> <td class="description">Default value</td></tr>
6513 <tr><th>IPP_TAG_DELETEATTR </th> <td class="description">Delete-attribute value</td></tr>
4f63d6cd 6514 <tr><th>IPP_TAG_DOCUMENT </th> <td class="description">Document group</td></tr>
98d88c8d
MS
6515 <tr><th>IPP_TAG_END </th> <td class="description">End-of-attributes</td></tr>
6516 <tr><th>IPP_TAG_ENUM </th> <td class="description">Enumeration value</td></tr>
6517 <tr><th>IPP_TAG_EVENT_NOTIFICATION </th> <td class="description">Event group</td></tr>
6518 <tr><th>IPP_TAG_INTEGER </th> <td class="description">Integer value</td></tr>
6519 <tr><th>IPP_TAG_JOB </th> <td class="description">Job group</td></tr>
6520 <tr><th>IPP_TAG_KEYWORD </th> <td class="description">Keyword value</td></tr>
6521 <tr><th>IPP_TAG_LANGUAGE </th> <td class="description">Language value</td></tr>
6522 <tr><th>IPP_TAG_MIMETYPE </th> <td class="description">MIME media type value</td></tr>
6523 <tr><th>IPP_TAG_NAME </th> <td class="description">Name value</td></tr>
6524 <tr><th>IPP_TAG_NAMELANG </th> <td class="description">Name-with-language value</td></tr>
6525 <tr><th>IPP_TAG_NOTSETTABLE </th> <td class="description">Not-settable value</td></tr>
6526 <tr><th>IPP_TAG_NOVALUE </th> <td class="description">No-value value</td></tr>
6527 <tr><th>IPP_TAG_OPERATION </th> <td class="description">Operation group</td></tr>
6528 <tr><th>IPP_TAG_PRINTER </th> <td class="description">Printer group</td></tr>
6529 <tr><th>IPP_TAG_RANGE </th> <td class="description">Range value</td></tr>
6530 <tr><th>IPP_TAG_RESOLUTION </th> <td class="description">Resolution value</td></tr>
4f63d6cd 6531 <tr><th>IPP_TAG_RESOURCE </th> <td class="description">Resource group</td></tr>
98d88c8d
MS
6532 <tr><th>IPP_TAG_STRING </th> <td class="description">Octet string value</td></tr>
6533 <tr><th>IPP_TAG_SUBSCRIPTION </th> <td class="description">Subscription group</td></tr>
4f63d6cd 6534 <tr><th>IPP_TAG_SYSTEM </th> <td class="description">System group</td></tr>
98d88c8d
MS
6535 <tr><th>IPP_TAG_TEXT </th> <td class="description">Text value</td></tr>
6536 <tr><th>IPP_TAG_TEXTLANG </th> <td class="description">Text-with-language value</td></tr>
6537 <tr><th>IPP_TAG_UNKNOWN </th> <td class="description">Unknown value</td></tr>
6538 <tr><th>IPP_TAG_UNSUPPORTED_GROUP </th> <td class="description">Unsupported attributes group</td></tr>
6539 <tr><th>IPP_TAG_UNSUPPORTED_VALUE </th> <td class="description">Unsupported value</td></tr>
6540 <tr><th>IPP_TAG_URI </th> <td class="description">URI value</td></tr>
6541 <tr><th>IPP_TAG_URISCHEME </th> <td class="description">URI scheme value</td></tr>
6542 <tr><th>IPP_TAG_ZERO </th> <td class="description">Zero tag - used for separators</td></tr>
6543</tbody></table>
798d6e29
MS
6544 </div>
6545 </body>
6546</html>