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Merge changes from CUPS 1.6svn-r10024.
[thirdparty/cups.git] / cups / ipp-support.c
1 /*
2 * "$Id: ipp-support.c 9371 2010-11-17 06:21:32Z mike $"
3 *
4 * Internet Printing Protocol support functions for CUPS.
5 *
6 * Copyright 2007-2011 by Apple Inc.
7 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
8 *
9 * These coded instructions, statements, and computer programs are the
10 * property of Apple Inc. and are protected by Federal copyright
11 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
12 * which should have been included with this file. If this file is
13 * file is missing or damaged, see the license at "http://www.cups.org/".
14 *
15 * This file is subject to the Apple OS-Developed Software exception.
16 *
17 * Contents:
18 *
19 * _ippAttrString() - Convert the attribute's value to a string.
20 * ippErrorString() - Return a name for the given status code.
21 * ippErrorValue() - Return a status code for the given name.
22 * ippOpString() - Return a name for the given operation id.
23 * ippOpValue() - Return an operation id for the given name.
24 * ippPort() - Return the default IPP port number.
25 * ippSetPort() - Set the default port number.
26 * ippTagString() - Return the tag name corresponding to a tag value.
27 * ippTagValue() - Return the tag value corresponding to a tag name.
28 * ipp_col_string() - Convert a collection to a string.
29 */
30
31 /*
32 * Include necessary headers...
33 */
34
35 #include "cups-private.h"
36
37
38 /*
39 * Local globals...
40 */
41
42 static const char * const ipp_status_oks[] = /* "OK" status codes */
43 {
44 "successful-ok",
45 "successful-ok-ignored-or-substituted-attributes",
46 "successful-ok-conflicting-attributes",
47 "successful-ok-ignored-subscriptions",
48 "successful-ok-ignored-notifications",
49 "successful-ok-too-many-events",
50 "successful-ok-but-cancel-subscription",
51 "successful-ok-events-complete"
52 },
53 * const ipp_status_400s[] = /* Client errors */
54 {
55 "client-error-bad-request",
56 "client-error-forbidden",
57 "client-error-not-authenticated",
58 "client-error-not-authorized",
59 "client-error-not-possible",
60 "client-error-timeout",
61 "client-error-not-found",
62 "client-error-gone",
63 "client-error-request-entity-too-large",
64 "client-error-request-value-too-long",
65 "client-error-document-format-not-supported",
66 "client-error-attributes-or-values-not-supported",
67 "client-error-uri-scheme-not-supported",
68 "client-error-charset-not-supported",
69 "client-error-conflicting-attributes",
70 "client-error-compression-not-supported",
71 "client-error-compression-error",
72 "client-error-document-format-error",
73 "client-error-document-access-error",
74 "client-error-attributes-not-settable",
75 "client-error-ignored-all-subscriptions",
76 "client-error-too-many-subscriptions",
77 "client-error-ignored-all-notifications",
78 "client-error-print-support-file-not-found"
79 },
80 * const ipp_status_500s[] = /* Server errors */
81 {
82 "server-error-internal-error",
83 "server-error-operation-not-supported",
84 "server-error-service-unavailable",
85 "server-error-version-not-supported",
86 "server-error-device-error",
87 "server-error-temporary-error",
88 "server-error-not-accepting-jobs",
89 "server-error-busy",
90 "server-error-job-canceled",
91 "server-error-multiple-document-jobs-not-supported",
92 "server-error-printer-is-deactivated"
93 },
94 * const ipp_status_1000s[] = /* CUPS internal */
95 {
96 "cups-authorization-canceled",
97 "cups-pki-error",
98 "cups-upgrade-required"
99 };
100 static char * const ipp_std_ops[] =
101 {
102 /* 0x0000 - 0x000f */
103 "unknown-00",
104 "unknown-01",
105 "Print-Job",
106 "Print-URI",
107 "Validate-Job",
108 "Create-Job",
109 "Send-Document",
110 "Send-URI",
111 "Cancel-Job",
112 "Get-Job-Attributes",
113 "Get-Jobs",
114 "Get-Printer-Attributes",
115 "Hold-Job",
116 "Release-Job",
117 "Restart-Job",
118 "unknown-0f",
119
120 /* 0x0010 - 0x001f */
121 "Pause-Printer",
122 "Resume-Printer",
123 "Purge-Jobs",
124 "Set-Printer-Attributes",
125 "Set-Job-Attributes",
126 "Get-Printer-Supported-Values",
127 "Create-Printer-Subscription",
128 "Create-Job-Subscription",
129 "Get-Subscription-Attributes",
130 "Get-Subscriptions",
131 "Renew-Subscription",
132 "Cancel-Subscription",
133 "Get-Notifications",
134 "Send-Notifications",
135 "unknown-1e",
136 "unknown-1f",
137
138 /* 0x0020 - 0x002f */
139 "unknown-20",
140 "Get-Printer-Support-Files",
141 "Enable-Printer",
142 "Disable-Printer",
143 "Pause-Printer-After-Current-Job",
144 "Hold-New-Jobs",
145 "Release-Held-New-Jobs",
146 "Deactivate-Printer",
147 "Activate-Printer",
148 "Restart-Printer",
149 "Shutdown-Printer",
150 "Startup-Printer",
151 "Reprocess-Job",
152 "Cancel-Current-Job",
153 "Suspend-Current-Job",
154 "Resume-Job",
155
156 /* 0x0030 - 0x003b */
157 "Promote-Job",
158 "Schedule-Job-After",
159 "unknown-32",
160 "Cancel-Document",
161 "Get-Document-Attributes",
162 "Get-Documents",
163 "Delete-Document",
164 "Set-Document-Attributes",
165 "Cancel-Jobs",
166 "Cancel-My-Jobs",
167 "Resubmit-Job",
168 "Close-Job",
169 "Identify-Printer"
170 },
171 * const ipp_cups_ops[] =
172 {
173 "CUPS-Get-Default",
174 "CUPS-Get-Printers",
175 "CUPS-Add-Modify-Printer",
176 "CUPS-Delete-Printer",
177 "CUPS-Get-Classes",
178 "CUPS-Add-Modify-Class",
179 "CUPS-Delete-Class",
180 "CUPS-Accept-Jobs",
181 "CUPS-Reject-Jobs",
182 "CUPS-Set-Default",
183 "CUPS-Get-Devices",
184 "CUPS-Get-PPDs",
185 "CUPS-Move-Job",
186 "CUPS-Authenticate-Job",
187 "CUPS-Get-PPD"
188 },
189 * const ipp_cups_ops2[] =
190 {
191 "CUPS-Get-Document"
192 },
193 * const ipp_tag_names[] =
194 { /* Value/group tag names */
195 "zero", /* 0x00 */
196 "operation-attributes-tag",
197 /* 0x01 */
198 "job-attributes-tag", /* 0x02 */
199 "end-of-attributes-tag",
200 /* 0x03 */
201 "printer-attributes-tag",
202 /* 0x04 */
203 "unsupported-attributes-tag",
204 /* 0x05 */
205 "subscription-attributes-tag",
206 /* 0x06 */
207 "event-notification-attributes-tag",
208 /* 0x07 */
209 "unknown-08", /* 0x08 */
210 "unknown-09", /* 0x09 */
211 "unknown-0a", /* 0x0a */
212 "unknown-0b", /* 0x0b */
213 "unknown-0c", /* 0x0c */
214 "unknown-0d", /* 0x0d */
215 "unknown-0e", /* 0x0e */
216 "unknown-0f", /* 0x0f */
217 "unsupported", /* 0x10 */
218 "default", /* 0x11 */
219 "unknown", /* 0x12 */
220 "no-value", /* 0x13 */
221 "unknown-14", /* 0x14 */
222 "not-settable", /* 0x15 */
223 "delete-attribute", /* 0x16 */
224 "admin-define", /* 0x17 */
225 "unknown-18", /* 0x18 */
226 "unknown-19", /* 0x19 */
227 "unknown-1a", /* 0x1a */
228 "unknown-1b", /* 0x1b */
229 "unknown-1c", /* 0x1c */
230 "unknown-1d", /* 0x1d */
231 "unknown-1e", /* 0x1e */
232 "unknown-1f", /* 0x1f */
233 "unknown-20", /* 0x20 */
234 "integer", /* 0x21 */
235 "boolean", /* 0x22 */
236 "enum", /* 0x23 */
237 "unknown-24", /* 0x24 */
238 "unknown-25", /* 0x25 */
239 "unknown-26", /* 0x26 */
240 "unknown-27", /* 0x27 */
241 "unknown-28", /* 0x28 */
242 "unknown-29", /* 0x29 */
243 "unknown-2a", /* 0x2a */
244 "unknown-2b", /* 0x2b */
245 "unknown-2c", /* 0x2c */
246 "unknown-2d", /* 0x2d */
247 "unknown-2e", /* 0x2e */
248 "unknown-2f", /* 0x2f */
249 "octetString", /* 0x30 */
250 "dateTime", /* 0x31 */
251 "resolution", /* 0x32 */
252 "rangeOfInteger", /* 0x33 */
253 "collection", /* 0x34 */
254 "textWithLanguage", /* 0x35 */
255 "nameWithLanguage", /* 0x36 */
256 "endCollection", /* 0x37 */
257 "unknown-38", /* 0x38 */
258 "unknown-39", /* 0x39 */
259 "unknown-3a", /* 0x3a */
260 "unknown-3b", /* 0x3b */
261 "unknown-3c", /* 0x3c */
262 "unknown-3d", /* 0x3d */
263 "unknown-3e", /* 0x3e */
264 "unknown-3f", /* 0x3f */
265 "unknown-40", /* 0x40 */
266 "textWithoutLanguage",/* 0x41 */
267 "nameWithoutLanguage",/* 0x42 */
268 "unknown-43", /* 0x43 */
269 "keyword", /* 0x44 */
270 "uri", /* 0x45 */
271 "uriScheme", /* 0x46 */
272 "charset", /* 0x47 */
273 "naturalLanguage", /* 0x48 */
274 "mimeMediaType", /* 0x49 */
275 "memberAttrName" /* 0x4a */
276 };
277 static const char * const job_states[] =
278 { /* job-state enums */
279 "pending",
280 "pending-held",
281 "processing",
282 "processing-stopped",
283 "canceled",
284 "aborted",
285 "completed"
286 };
287 static const char * const printer_states[] =
288 { /* printer-state enums */
289 "idle",
290 "processing",
291 "stopped",
292 };
293
294
295 /*
296 * Local functions...
297 */
298
299 static size_t ipp_col_string(ipp_t *col, char *buffer, size_t bufsize);
300
301
302 /*
303 * '_ippAttrString()' - Convert the attribute's value to a string.
304 *
305 * Returns the number of bytes that would be written, not including the
306 * trailing nul. The buffer pointer can be NULL to get the required length,
307 * just like (v)snprintf.
308 */
309
310 size_t /* O - Number of bytes less nul */
311 _ippAttrString(ipp_attribute_t *attr, /* I - Attribute */
312 char *buffer, /* I - String buffer or NULL */
313 size_t bufsize) /* I - Size of string buffer */
314 {
315 int i; /* Looping var */
316 char *bufptr, /* Pointer into buffer */
317 *bufend, /* End of buffer */
318 temp[256]; /* Temporary string */
319 const char *ptr; /* Pointer into string */
320 ipp_value_t *val; /* Current value */
321
322
323 if (!attr || !attr->name)
324 {
325 if (buffer)
326 *buffer = '\0';
327
328 return (0);
329 }
330
331 bufptr = buffer;
332 if (buffer)
333 bufend = buffer + bufsize - 1;
334 else
335 bufend = NULL;
336
337 for (i = attr->num_values, val = attr->values; i > 0; i --, val ++)
338 {
339 if (val > attr->values)
340 {
341 if (buffer && bufptr < bufend)
342 *bufptr++ = ',';
343 else
344 bufptr ++;
345 }
346
347 switch (attr->value_tag & ~IPP_TAG_COPY)
348 {
349 case IPP_TAG_ENUM :
350 if (!strcmp(attr->name, "printer-state") &&
351 val->integer >= IPP_PRINTER_IDLE &&
352 val->integer <= IPP_PRINTER_STOPPED)
353 {
354 ptr = printer_states[val->integer - IPP_PRINTER_IDLE];
355
356 if (buffer && bufptr < bufend)
357 strlcpy(bufptr, ptr, bufend - bufptr + 1);
358
359 bufptr += strlen(ptr);
360 break;
361 }
362 else if (!strcmp(attr->name, "job-state") &&
363 val->integer >= IPP_JOB_PENDING &&
364 val->integer <= IPP_JOB_COMPLETED)
365 {
366 ptr = job_states[val->integer - IPP_JOB_PENDING];
367
368 if (buffer && bufptr < bufend)
369 strlcpy(bufptr, ptr, bufend - bufptr + 1);
370
371 bufptr += strlen(ptr);
372 break;
373 }
374 else if (!strcmp(attr->name, "operations-supported"))
375 {
376 ptr = ippOpString(val->integer);
377
378 if (buffer && bufptr < bufend)
379 strlcpy(bufptr, ptr, bufend - bufptr + 1);
380
381 bufptr += strlen(ptr);
382 break;
383 }
384
385 case IPP_TAG_INTEGER :
386 if (buffer && bufptr < bufend)
387 bufptr += snprintf(bufptr, bufend - bufptr + 1, "%d", val->integer);
388 else
389 bufptr += snprintf(temp, sizeof(temp), "%d", val->integer);
390 break;
391
392 case IPP_TAG_BOOLEAN :
393 if (buffer && bufptr < bufend)
394 strlcpy(bufptr, val->boolean ? "true" : "false",
395 bufend - bufptr + 1);
396
397 bufptr += val->boolean ? 4 : 5;
398 break;
399
400 case IPP_TAG_RANGE :
401 if (buffer && bufptr < bufend)
402 bufptr += snprintf(bufptr, bufend - bufptr + 1, "%d-%d",
403 val->range.lower, val->range.upper);
404 else
405 bufptr += snprintf(temp, sizeof(temp), "%d-%d", val->range.lower,
406 val->range.upper);
407 break;
408
409 case IPP_TAG_RESOLUTION :
410 if (buffer && bufptr < bufend)
411 bufptr += snprintf(bufptr, bufend - bufptr + 1, "%dx%d%s",
412 val->resolution.xres, val->resolution.yres,
413 val->resolution.units == IPP_RES_PER_INCH ?
414 "dpi" : "dpc");
415 else
416 bufptr += snprintf(temp, sizeof(temp), "%dx%d%s",
417 val->resolution.xres, val->resolution.yres,
418 val->resolution.units == IPP_RES_PER_INCH ?
419 "dpi" : "dpc");
420 break;
421
422 case IPP_TAG_DATE :
423 {
424 unsigned year; /* Year */
425
426 year = (val->date[0] << 8) + val->date[1];
427
428 if (val->date[9] == 0 && val->date[10] == 0)
429 snprintf(temp, sizeof(temp), "%04u-%02u-%02uT%02u:%02u:%02uZ",
430 year, val->date[2], val->date[3], val->date[4],
431 val->date[5], val->date[6]);
432 else
433 snprintf(temp, sizeof(temp),
434 "%04u-%02u-%02uT%02u:%02u:%02u%c%02u%02u",
435 year, val->date[2], val->date[3], val->date[4],
436 val->date[5], val->date[6], val->date[8], val->date[9],
437 val->date[10]);
438
439 if (buffer && bufptr < bufend)
440 strlcpy(bufptr, temp, bufend - bufptr + 1);
441
442 bufptr += strlen(temp);
443 }
444 break;
445
446 case IPP_TAG_TEXT :
447 case IPP_TAG_NAME :
448 case IPP_TAG_KEYWORD :
449 case IPP_TAG_CHARSET :
450 case IPP_TAG_URI :
451 case IPP_TAG_MIMETYPE :
452 case IPP_TAG_LANGUAGE :
453 case IPP_TAG_TEXTLANG :
454 case IPP_TAG_NAMELANG :
455 if (!val->string.text)
456 break;
457
458 for (ptr = val->string.text; *ptr; ptr ++)
459 {
460 if (*ptr == '\\' || *ptr == '\"')
461 {
462 if (buffer && bufptr < bufend)
463 *bufptr = '\\';
464 bufptr ++;
465 }
466
467 if (buffer && bufptr < bufend)
468 *bufptr = *ptr;
469 bufptr ++;
470 }
471 break;
472
473 case IPP_TAG_BEGIN_COLLECTION :
474 if (buffer && bufptr < bufend)
475 bufptr += ipp_col_string(val->collection, bufptr,
476 bufend - bufptr + 1);
477 else
478 bufptr += ipp_col_string(val->collection, NULL, 0);
479 break;
480
481 case IPP_TAG_STRING :
482 for (ptr = val->string.text; *ptr; ptr ++)
483 {
484 if (*ptr == '\\' || _cups_isspace(*ptr))
485 {
486 if (buffer && bufptr < bufend)
487 *bufptr = '\\';
488 bufptr ++;
489
490 if (buffer && bufptr < bufend)
491 *bufptr = *ptr;
492 bufptr ++;
493 }
494 else if (!isprint(*ptr & 255))
495 {
496 if (buffer && bufptr < bufend)
497 bufptr += snprintf(bufptr, bufend - bufptr + 1, "\\%03o",
498 *ptr & 255);
499 else
500 bufptr += snprintf(temp, sizeof(temp), "\\%03o",
501 *ptr & 255);
502 }
503 else
504 {
505 if (buffer && bufptr < bufend)
506 *bufptr = *ptr;
507 bufptr ++;
508 }
509 }
510 break;
511
512 default :
513 ptr = ippTagString(attr->value_tag);
514 if (buffer && bufptr < bufend)
515 strlcpy(bufptr, ptr, bufend - bufptr + 1);
516 bufptr += strlen(ptr);
517 break;
518 }
519 }
520
521 if (buffer && bufptr < bufend)
522 *bufptr = '\0';
523 else if (bufend)
524 *bufend = '\0';
525
526 return (bufptr - buffer);
527 }
528
529
530 /*
531 * 'ippErrorString()' - Return a name for the given status code.
532 */
533
534 const char * /* O - Text string */
535 ippErrorString(ipp_status_t error) /* I - Error status */
536 {
537 _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
538
539
540 /*
541 * See if the error code is a known value...
542 */
543
544 if (error >= IPP_OK && error <= IPP_OK_EVENTS_COMPLETE)
545 return (ipp_status_oks[error]);
546 else if (error == IPP_REDIRECTION_OTHER_SITE)
547 return ("redirection-other-site");
548 else if (error == CUPS_SEE_OTHER)
549 return ("cups-see-other");
550 else if (error >= IPP_BAD_REQUEST && error <= IPP_PRINT_SUPPORT_FILE_NOT_FOUND)
551 return (ipp_status_400s[error - IPP_BAD_REQUEST]);
552 else if (error >= IPP_INTERNAL_ERROR && error <= IPP_PRINTER_IS_DEACTIVATED)
553 return (ipp_status_500s[error - IPP_INTERNAL_ERROR]);
554 else if (error >= IPP_AUTHENTICATION_CANCELED && error <= IPP_UPGRADE_REQUIRED)
555 return (ipp_status_1000s[error - IPP_AUTHENTICATION_CANCELED]);
556
557 /*
558 * No, build an "unknown-xxxx" error string...
559 */
560
561 sprintf(cg->ipp_unknown, "unknown-%04x", error);
562
563 return (cg->ipp_unknown);
564 }
565
566
567 /*
568 * 'ippErrorValue()' - Return a status code for the given name.
569 *
570 * @since CUPS 1.2/Mac OS X 10.5@
571 */
572
573 ipp_status_t /* O - IPP status code */
574 ippErrorValue(const char *name) /* I - Name */
575 {
576 int i;
577
578
579 for (i = 0; i < (sizeof(ipp_status_oks) / sizeof(ipp_status_oks[0])); i ++)
580 if (!_cups_strcasecmp(name, ipp_status_oks[i]))
581 return ((ipp_status_t)i);
582
583 if (!_cups_strcasecmp(name, "redirection-other-site"))
584 return (IPP_REDIRECTION_OTHER_SITE);
585
586 if (!_cups_strcasecmp(name, "cups-see-other"))
587 return (CUPS_SEE_OTHER);
588
589 for (i = 0; i < (sizeof(ipp_status_400s) / sizeof(ipp_status_400s[0])); i ++)
590 if (!_cups_strcasecmp(name, ipp_status_400s[i]))
591 return ((ipp_status_t)(i + 0x400));
592
593 for (i = 0; i < (sizeof(ipp_status_500s) / sizeof(ipp_status_500s[0])); i ++)
594 if (!_cups_strcasecmp(name, ipp_status_500s[i]))
595 return ((ipp_status_t)(i + 0x500));
596
597 for (i = 0; i < (sizeof(ipp_status_1000s) / sizeof(ipp_status_1000s[0])); i ++)
598 if (!_cups_strcasecmp(name, ipp_status_1000s[i]))
599 return ((ipp_status_t)(i + 0x1000));
600
601 return ((ipp_status_t)-1);
602 }
603
604
605 /*
606 * 'ippOpString()' - Return a name for the given operation id.
607 *
608 * @since CUPS 1.2/Mac OS X 10.5@
609 */
610
611 const char * /* O - Name */
612 ippOpString(ipp_op_t op) /* I - Operation ID */
613 {
614 _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
615
616
617 /*
618 * See if the operation ID is a known value...
619 */
620
621 if (op >= IPP_PRINT_JOB && op <= IPP_CLOSE_JOB)
622 return (ipp_std_ops[op]);
623 else if (op == IPP_PRIVATE)
624 return ("windows-ext");
625 else if (op >= CUPS_GET_DEFAULT && op <= CUPS_GET_PPD)
626 return (ipp_cups_ops[op - CUPS_GET_DEFAULT]);
627 else if (op == CUPS_GET_DOCUMENT)
628 return (ipp_cups_ops2[0]);
629
630 /*
631 * No, build an "unknown-xxxx" operation string...
632 */
633
634 sprintf(cg->ipp_unknown, "0x%04x", op);
635
636 return (cg->ipp_unknown);
637 }
638
639
640 /*
641 * 'ippOpValue()' - Return an operation id for the given name.
642 *
643 * @since CUPS 1.2/Mac OS X 10.5@
644 */
645
646 ipp_op_t /* O - Operation ID */
647 ippOpValue(const char *name) /* I - Textual name */
648 {
649 int i;
650
651
652 if (!strncmp(name, "0x", 2))
653 return ((ipp_op_t)strtol(name + 2, NULL, 16));
654
655 for (i = 0; i < (sizeof(ipp_std_ops) / sizeof(ipp_std_ops[0])); i ++)
656 if (!_cups_strcasecmp(name, ipp_std_ops[i]))
657 return ((ipp_op_t)i);
658
659 if (!_cups_strcasecmp(name, "windows-ext"))
660 return (IPP_PRIVATE);
661
662 for (i = 0; i < (sizeof(ipp_cups_ops) / sizeof(ipp_cups_ops[0])); i ++)
663 if (!_cups_strcasecmp(name, ipp_cups_ops[i]))
664 return ((ipp_op_t)(i + 0x4001));
665
666 for (i = 0; i < (sizeof(ipp_cups_ops2) / sizeof(ipp_cups_ops2[0])); i ++)
667 if (!_cups_strcasecmp(name, ipp_cups_ops2[i]))
668 return ((ipp_op_t)(i + 0x4027));
669
670 if (!_cups_strcasecmp(name, "CUPS-Add-Class"))
671 return (CUPS_ADD_MODIFY_CLASS);
672
673 if (!_cups_strcasecmp(name, "CUPS-Add-Printer"))
674 return (CUPS_ADD_MODIFY_PRINTER);
675
676 return ((ipp_op_t)-1);
677 }
678
679
680 /*
681 * 'ippPort()' - Return the default IPP port number.
682 */
683
684 int /* O - Port number */
685 ippPort(void)
686 {
687 _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
688
689
690 DEBUG_puts("ippPort()");
691
692 if (!cg->ipp_port)
693 _cupsSetDefaults();
694
695 DEBUG_printf(("1ippPort: Returning %d...", cg->ipp_port));
696
697 return (cg->ipp_port);
698 }
699
700
701 /*
702 * 'ippSetPort()' - Set the default port number.
703 */
704
705 void
706 ippSetPort(int p) /* I - Port number to use */
707 {
708 DEBUG_printf(("ippSetPort(p=%d)", p));
709
710 _cupsGlobals()->ipp_port = p;
711 }
712
713
714 /*
715 * 'ippTagString()' - Return the tag name corresponding to a tag value.
716 *
717 * The returned names are defined in RFC 2911 and 3382.
718 *
719 * @since CUPS 1.4/Mac OS X 10.6@
720 */
721
722 const char * /* O - Tag name */
723 ippTagString(ipp_tag_t tag) /* I - Tag value */
724 {
725 tag &= IPP_TAG_MASK;
726
727 if (tag < (ipp_tag_t)(sizeof(ipp_tag_names) / sizeof(ipp_tag_names[0])))
728 return (ipp_tag_names[tag]);
729 else
730 return ("UNKNOWN");
731 }
732
733
734 /*
735 * 'ippTagValue()' - Return the tag value corresponding to a tag name.
736 *
737 * The tag names are defined in RFC 2911 and 3382.
738 *
739 * @since CUPS 1.4/Mac OS X 10.6@
740 */
741
742 ipp_tag_t /* O - Tag value */
743 ippTagValue(const char *name) /* I - Tag name */
744 {
745 int i; /* Looping var */
746
747
748 for (i = 0; i < (sizeof(ipp_tag_names) / sizeof(ipp_tag_names[0])); i ++)
749 if (!_cups_strcasecmp(name, ipp_tag_names[i]))
750 return ((ipp_tag_t)i);
751
752 if (!_cups_strcasecmp(name, "operation"))
753 return (IPP_TAG_OPERATION);
754 else if (!_cups_strcasecmp(name, "job"))
755 return (IPP_TAG_JOB);
756 else if (!_cups_strcasecmp(name, "printer"))
757 return (IPP_TAG_PRINTER);
758 else if (!_cups_strcasecmp(name, "unsupported"))
759 return (IPP_TAG_UNSUPPORTED_GROUP);
760 else if (!_cups_strcasecmp(name, "subscription"))
761 return (IPP_TAG_SUBSCRIPTION);
762 else if (!_cups_strcasecmp(name, "event"))
763 return (IPP_TAG_EVENT_NOTIFICATION);
764 else if (!_cups_strcasecmp(name, "language"))
765 return (IPP_TAG_LANGUAGE);
766 else if (!_cups_strcasecmp(name, "mimetype"))
767 return (IPP_TAG_MIMETYPE);
768 else if (!_cups_strcasecmp(name, "name"))
769 return (IPP_TAG_NAME);
770 else if (!_cups_strcasecmp(name, "text"))
771 return (IPP_TAG_TEXT);
772 else if (!_cups_strcasecmp(name, "begCollection"))
773 return (IPP_TAG_BEGIN_COLLECTION);
774 else
775 return (IPP_TAG_ZERO);
776 }
777
778
779 /*
780 * 'ipp_col_string()' - Convert a collection to a string.
781 */
782
783 static size_t /* O - Number of bytes */
784 ipp_col_string(ipp_t *col, /* I - Collection attribute */
785 char *buffer, /* I - Buffer or NULL */
786 size_t bufsize) /* I - Size of buffer */
787 {
788 char *bufptr, /* Position in buffer */
789 *bufend, /* End of buffer */
790 temp[256]; /* Temporary string */
791 ipp_attribute_t *attr; /* Current member attribute */
792
793
794 bufptr = buffer;
795 bufend = buffer + bufsize - 1;
796
797 if (buffer && bufptr < bufend)
798 *bufptr = '{';
799 bufptr ++;
800
801 for (attr = col->attrs; attr; attr = attr->next)
802 {
803 if (!attr->name)
804 continue;
805
806 if (buffer && bufptr < bufend)
807 bufptr += snprintf(bufptr, bufend - bufptr + 1, "%s=", attr->name);
808 else
809 bufptr += strlen(attr->name) + 1;
810
811 if (buffer && bufptr < bufend)
812 bufptr += _ippAttrString(attr, bufptr, bufend - bufptr + 1);
813 else
814 bufptr += _ippAttrString(attr, temp, sizeof(temp));
815 }
816
817 if (buffer && bufptr < bufend)
818 *bufptr = '}';
819 bufptr ++;
820
821 return (bufptr - buffer);
822 }
823
824
825 /*
826 * End of "$Id: ipp-support.c 9371 2010-11-17 06:21:32Z mike $".
827 */
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