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Merge changes from CUPS 1.4svn-r8305.
[thirdparty/cups.git] / cups / encode.c
1 /*
2 * "$Id: encode.c 7696 2008-06-26 00:54:42Z mike $"
3 *
4 * Option encoding routines for the Common UNIX Printing System (CUPS).
5 *
6 * Copyright 2007-2009 by Apple Inc.
7 * Copyright 1997-2007 by Easy Software Products.
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 * cupsEncodeOptions() - Encode printer options into IPP attributes.
20 * cupsEncodeOptions2() - Encode printer options into IPP attributes for
21 * a group.
22 * _ippFindOption() - Find the attribute information for an option.
23 * compare_ipp_options() - Compare two IPP options.
24 */
25
26 /*
27 * Include necessary headers...
28 */
29
30 #include "cups.h"
31 #include "ipp-private.h"
32 #include <stdlib.h>
33 #include <ctype.h>
34 #include "string.h"
35 #include "debug.h"
36
37
38 /*
39 * Local list of option names and the value tags they should use...
40 *
41 * **** THIS LIST MUST BE SORTED ****
42 */
43
44 static const _ipp_option_t ipp_options[] =
45 {
46 { 1, "auth-info", IPP_TAG_TEXT, IPP_TAG_JOB },
47 { 1, "auth-info-required", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
48 { 0, "blackplot", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
49 { 0, "blackplot-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
50 { 0, "brightness", IPP_TAG_INTEGER, IPP_TAG_JOB },
51 { 0, "brightness-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
52 { 0, "columns", IPP_TAG_INTEGER, IPP_TAG_JOB },
53 { 0, "columns-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
54 { 0, "compression", IPP_TAG_KEYWORD, IPP_TAG_OPERATION },
55 { 0, "copies", IPP_TAG_INTEGER, IPP_TAG_JOB },
56 { 0, "copies-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
57 { 0, "device-uri", IPP_TAG_URI, IPP_TAG_PRINTER },
58 { 0, "document-format", IPP_TAG_MIMETYPE, IPP_TAG_OPERATION },
59 { 0, "document-format-default", IPP_TAG_MIMETYPE, IPP_TAG_PRINTER },
60 { 1, "exclude-schemes", IPP_TAG_NAME, IPP_TAG_OPERATION },
61 { 1, "finishings", IPP_TAG_ENUM, IPP_TAG_JOB },
62 { 1, "finishings-default", IPP_TAG_ENUM, IPP_TAG_PRINTER },
63 { 0, "fit-to-page", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
64 { 0, "fit-to-page-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
65 { 0, "fitplot", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
66 { 0, "fitplot-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
67 { 0, "gamma", IPP_TAG_INTEGER, IPP_TAG_JOB },
68 { 0, "gamma-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
69 { 0, "hue", IPP_TAG_INTEGER, IPP_TAG_JOB },
70 { 0, "hue-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
71 { 1, "include-schemes", IPP_TAG_NAME, IPP_TAG_OPERATION },
72 { 0, "job-impressions", IPP_TAG_INTEGER, IPP_TAG_JOB },
73 { 0, "job-k-limit", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
74 { 0, "job-page-limit", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
75 { 0, "job-priority", IPP_TAG_INTEGER, IPP_TAG_JOB },
76 { 0, "job-quota-period", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
77 { 1, "job-sheets", IPP_TAG_NAME, IPP_TAG_JOB },
78 { 1, "job-sheets-default", IPP_TAG_NAME, IPP_TAG_PRINTER },
79 { 0, "job-uuid", IPP_TAG_URI, IPP_TAG_JOB },
80 { 0, "landscape", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
81 { 1, "marker-change-time", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
82 { 1, "marker-colors", IPP_TAG_NAME, IPP_TAG_PRINTER },
83 { 1, "marker-high-levels", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
84 { 1, "marker-levels", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
85 { 1, "marker-low-levels", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
86 { 0, "marker-message", IPP_TAG_TEXT, IPP_TAG_PRINTER },
87 { 1, "marker-names", IPP_TAG_NAME, IPP_TAG_PRINTER },
88 { 1, "marker-types", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
89 { 1, "media", IPP_TAG_KEYWORD, IPP_TAG_JOB },
90 { 0, "media-col", IPP_TAG_BEGIN_COLLECTION, IPP_TAG_JOB },
91 { 0, "media-col-default", IPP_TAG_BEGIN_COLLECTION, IPP_TAG_PRINTER },
92 { 0, "media-color", IPP_TAG_KEYWORD, IPP_TAG_JOB },
93 { 1, "media-default", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
94 { 0, "media-key", IPP_TAG_KEYWORD, IPP_TAG_JOB },
95 { 0, "media-size", IPP_TAG_BEGIN_COLLECTION, IPP_TAG_JOB },
96 { 0, "media-type", IPP_TAG_KEYWORD, IPP_TAG_JOB },
97 { 0, "mirror", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
98 { 0, "mirror-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
99 { 0, "natural-scaling", IPP_TAG_INTEGER, IPP_TAG_JOB },
100 { 0, "natural-scaling-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
101 { 0, "notify-charset", IPP_TAG_CHARSET, IPP_TAG_SUBSCRIPTION },
102 { 1, "notify-events", IPP_TAG_KEYWORD, IPP_TAG_SUBSCRIPTION },
103 { 1, "notify-events-default", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
104 { 0, "notify-lease-duration", IPP_TAG_INTEGER, IPP_TAG_SUBSCRIPTION },
105 { 0, "notify-lease-duration-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
106 { 0, "notify-natural-language", IPP_TAG_LANGUAGE, IPP_TAG_SUBSCRIPTION },
107 { 0, "notify-pull-method", IPP_TAG_KEYWORD, IPP_TAG_SUBSCRIPTION },
108 { 0, "notify-recipient-uri", IPP_TAG_URI, IPP_TAG_SUBSCRIPTION },
109 { 0, "notify-time-interval", IPP_TAG_INTEGER, IPP_TAG_SUBSCRIPTION },
110 { 0, "notify-user-data", IPP_TAG_STRING, IPP_TAG_SUBSCRIPTION },
111 { 0, "number-up", IPP_TAG_INTEGER, IPP_TAG_JOB },
112 { 0, "number-up-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
113 { 0, "orientation-requested", IPP_TAG_ENUM, IPP_TAG_JOB },
114 { 0, "orientation-requested-default", IPP_TAG_ENUM, IPP_TAG_PRINTER },
115 { 0, "page-bottom", IPP_TAG_INTEGER, IPP_TAG_JOB },
116 { 0, "page-bottom-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
117 { 0, "page-left", IPP_TAG_INTEGER, IPP_TAG_JOB },
118 { 0, "page-left-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
119 { 1, "page-ranges", IPP_TAG_RANGE, IPP_TAG_JOB },
120 { 1, "page-ranges-default", IPP_TAG_RANGE, IPP_TAG_PRINTER },
121 { 0, "page-right", IPP_TAG_INTEGER, IPP_TAG_JOB },
122 { 0, "page-right-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
123 { 0, "page-top", IPP_TAG_INTEGER, IPP_TAG_JOB },
124 { 0, "page-top-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
125 { 0, "penwidth", IPP_TAG_INTEGER, IPP_TAG_JOB },
126 { 0, "penwidth-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
127 { 0, "port-monitor", IPP_TAG_NAME, IPP_TAG_PRINTER },
128 { 0, "ppi", IPP_TAG_INTEGER, IPP_TAG_JOB },
129 { 0, "ppi-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
130 { 0, "prettyprint", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
131 { 0, "prettyprint-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
132 { 0, "print-quality", IPP_TAG_ENUM, IPP_TAG_JOB },
133 { 0, "print-quality-default", IPP_TAG_ENUM, IPP_TAG_PRINTER },
134 { 1, "printer-commands", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
135 { 0, "printer-error-policy", IPP_TAG_NAME, IPP_TAG_PRINTER },
136 { 0, "printer-info", IPP_TAG_TEXT, IPP_TAG_PRINTER },
137 { 0, "printer-is-accepting-jobs", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
138 { 0, "printer-is-shared", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
139 { 0, "printer-location", IPP_TAG_TEXT, IPP_TAG_PRINTER },
140 { 0, "printer-make-and-model", IPP_TAG_TEXT, IPP_TAG_PRINTER },
141 { 0, "printer-more-info", IPP_TAG_URI, IPP_TAG_PRINTER },
142 { 0, "printer-op-policy", IPP_TAG_NAME, IPP_TAG_PRINTER },
143 { 0, "printer-resolution", IPP_TAG_RESOLUTION, IPP_TAG_JOB },
144 { 0, "printer-state", IPP_TAG_ENUM, IPP_TAG_PRINTER },
145 { 0, "printer-state-change-time", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
146 { 1, "printer-state-reasons", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
147 { 0, "printer-type", IPP_TAG_ENUM, IPP_TAG_PRINTER },
148 { 0, "printer-uri", IPP_TAG_URI, IPP_TAG_OPERATION },
149 { 1, "printer-uri-supported", IPP_TAG_URI, IPP_TAG_PRINTER },
150 { 0, "queued-job-count", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
151 { 0, "raw", IPP_TAG_MIMETYPE, IPP_TAG_OPERATION },
152 { 1, "requested-attributes", IPP_TAG_NAME, IPP_TAG_OPERATION },
153 { 1, "requesting-user-name-allowed", IPP_TAG_NAME, IPP_TAG_PRINTER },
154 { 1, "requesting-user-name-denied", IPP_TAG_NAME, IPP_TAG_PRINTER },
155 { 0, "resolution", IPP_TAG_RESOLUTION, IPP_TAG_JOB },
156 { 0, "resolution-default", IPP_TAG_RESOLUTION, IPP_TAG_PRINTER },
157 { 0, "saturation", IPP_TAG_INTEGER, IPP_TAG_JOB },
158 { 0, "saturation-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
159 { 0, "scaling", IPP_TAG_INTEGER, IPP_TAG_JOB },
160 { 0, "scaling-default", IPP_TAG_INTEGER, IPP_TAG_PRINTER },
161 { 0, "sides", IPP_TAG_KEYWORD, IPP_TAG_JOB },
162 { 0, "sides-default", IPP_TAG_KEYWORD, IPP_TAG_PRINTER },
163 { 0, "wrap", IPP_TAG_BOOLEAN, IPP_TAG_JOB },
164 { 0, "wrap-default", IPP_TAG_BOOLEAN, IPP_TAG_PRINTER },
165 { 0, "x-dimension", IPP_TAG_INTEGER, IPP_TAG_JOB },
166 { 0, "y-dimension", IPP_TAG_INTEGER, IPP_TAG_JOB }
167 };
168
169
170 /*
171 * Local functions...
172 */
173
174 static int compare_ipp_options(_ipp_option_t *a, _ipp_option_t *b);
175
176
177 /*
178 * 'cupsEncodeOptions()' - Encode printer options into IPP attributes.
179 *
180 * This function adds operation, job, and then subscription attributes,
181 * in that order. Use the cupsEncodeOptions2() function to add attributes
182 * for a single group.
183 */
184
185 void
186 cupsEncodeOptions(ipp_t *ipp, /* I - Request to add to */
187 int num_options, /* I - Number of options */
188 cups_option_t *options) /* I - Options */
189 {
190 DEBUG_printf(("cupsEncodeOptions(%p, %d, %p)\n", ipp, num_options, options));
191
192 /*
193 * Add the options in the proper groups & order...
194 */
195
196 cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_OPERATION);
197 cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_JOB);
198 cupsEncodeOptions2(ipp, num_options, options, IPP_TAG_SUBSCRIPTION);
199 }
200
201
202 /*
203 * 'cupsEncodeOptions2()' - Encode printer options into IPP attributes for a group.
204 *
205 * This function only adds attributes for a single group. Call this
206 * function multiple times for each group, or use cupsEncodeOptions()
207 * to add the standard groups.
208 *
209 * @since CUPS 1.2/Mac OS X 10.5@
210 */
211
212 void
213 cupsEncodeOptions2(
214 ipp_t *ipp, /* I - Request to add to */
215 int num_options, /* I - Number of options */
216 cups_option_t *options, /* I - Options */
217 ipp_tag_t group_tag) /* I - Group to encode */
218 {
219 int i, j; /* Looping vars */
220 int count; /* Number of values */
221 char *s, /* Pointer into option value */
222 *val, /* Pointer to option value */
223 *copy, /* Copy of option value */
224 *sep, /* Option separator */
225 quote; /* Quote character */
226 ipp_attribute_t *attr; /* IPP attribute */
227 ipp_tag_t value_tag; /* IPP value tag */
228 cups_option_t *option; /* Current option */
229 ipp_t *collection; /* Collection value */
230 int num_cols; /* Number of collection values */
231 cups_option_t *cols; /* Collection values */
232
233
234 DEBUG_printf(("cupsEncodeOptions2(ipp=%p, num_options=%d, options=%p, "
235 "group_tag=%x)\n", ipp, num_options, options, group_tag));
236
237 /*
238 * Range check input...
239 */
240
241 if (!ipp || num_options < 1 || !options)
242 return;
243
244 /*
245 * Do special handling for the document-format/raw options...
246 */
247
248 if (group_tag == IPP_TAG_OPERATION)
249 {
250 /*
251 * Handle the document format stuff first...
252 */
253
254 if ((val = (char *)cupsGetOption("document-format", num_options, options)) != NULL)
255 ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
256 NULL, val);
257 else if (cupsGetOption("raw", num_options, options))
258 ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
259 NULL, "application/vnd.cups-raw");
260 else
261 ippAddString(ipp, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format",
262 NULL, "application/octet-stream");
263 }
264
265 /*
266 * Then loop through the options...
267 */
268
269 for (i = num_options, option = options; i > 0; i --, option ++)
270 {
271 _ipp_option_t *match; /* Matching attribute */
272
273
274 /*
275 * Skip document format options that are handled above...
276 */
277
278 if (!strcasecmp(option->name, "raw") ||
279 !strcasecmp(option->name, "document-format") ||
280 !option->name[0])
281 continue;
282
283 /*
284 * Figure out the proper value and group tags for this option...
285 */
286
287 if ((match = _ippFindOption(option->name)) != NULL)
288 {
289 if (match->group_tag != group_tag)
290 continue;
291
292 value_tag = match->value_tag;
293 }
294 else
295 {
296 int namelen; /* Length of name */
297
298
299 namelen = (int)strlen(option->name);
300
301 if (namelen < 9 || strcmp(option->name + namelen - 8, "-default"))
302 {
303 if (group_tag != IPP_TAG_JOB)
304 continue;
305 }
306 else if (group_tag != IPP_TAG_PRINTER)
307 continue;
308
309 if (!strcasecmp(option->value, "true") ||
310 !strcasecmp(option->value, "false"))
311 value_tag = IPP_TAG_BOOLEAN;
312 else
313 value_tag = IPP_TAG_NAME;
314 }
315
316 /*
317 * Count the number of values...
318 */
319
320 if (match && match->multivalue)
321 {
322 for (count = 1, sep = option->value, quote = 0; *sep; sep ++)
323 {
324 if (*sep == quote)
325 quote = 0;
326 else if (!quote && (*sep == '\'' || *sep == '\"'))
327 {
328 /*
329 * Skip quoted option value...
330 */
331
332 quote = *sep++;
333 }
334 else if (*sep == ',' && !quote)
335 count ++;
336 else if (*sep == '\\' && sep[1])
337 sep ++;
338 }
339 }
340 else
341 count = 1;
342
343 DEBUG_printf(("cupsEncodeOptions2: option = \'%s\', count = %d\n",
344 option->name, count));
345
346 /*
347 * Allocate memory for the attribute values...
348 */
349
350 if ((attr = _ippAddAttr(ipp, count)) == NULL)
351 {
352 /*
353 * Ran out of memory!
354 */
355
356 DEBUG_puts("cupsEncodeOptions2: Ran out of memory for attributes!");
357 return;
358 }
359
360 /*
361 * Now figure out what type of value we have...
362 */
363
364 attr->group_tag = group_tag;
365 attr->value_tag = value_tag;
366
367 /*
368 * Copy the name over...
369 */
370
371 attr->name = _cupsStrAlloc(option->name);
372
373 if (count > 1)
374 {
375 /*
376 * Make a copy of the value we can fiddle with...
377 */
378
379 if ((copy = strdup(option->value)) == NULL)
380 {
381 /*
382 * Ran out of memory!
383 */
384
385 DEBUG_puts("cupsEncodeOptions2: Ran out of memory for value copy!");
386 ippDeleteAttribute(ipp, attr);
387 return;
388 }
389
390 val = copy;
391 }
392 else
393 {
394 /*
395 * Since we have a single value, use the value directly...
396 */
397
398 val = option->value;
399 copy = NULL;
400 }
401
402 /*
403 * Scan the value string for values...
404 */
405
406 for (j = 0, sep = val; j < count; val = sep, j ++)
407 {
408 /*
409 * Find the end of this value and mark it if needed...
410 */
411
412 if (count > 1)
413 {
414 for (quote = 0; *sep; sep ++)
415 {
416 if (*sep == quote)
417 {
418 /*
419 * Finish quoted value...
420 */
421
422 quote = 0;
423 }
424 else if (!quote && (*sep == '\'' || *sep == '\"'))
425 {
426 /*
427 * Handle quoted option value...
428 */
429
430 quote = *sep;
431 }
432 else if (*sep == ',' && count > 1)
433 break;
434 else if (*sep == '\\' && sep[1])
435 {
436 /*
437 * Skip quoted character...
438 */
439
440 sep ++;
441 }
442 }
443
444 if (*sep == ',')
445 *sep++ = '\0';
446 }
447
448 /*
449 * Copy the option value(s) over as needed by the type...
450 */
451
452 switch (attr->value_tag)
453 {
454 case IPP_TAG_INTEGER :
455 case IPP_TAG_ENUM :
456 /*
457 * Integer/enumeration value...
458 */
459
460 attr->values[j].integer = strtol(val, &s, 10);
461
462 DEBUG_printf(("cupsEncodeOptions2: Added integer option value %d...\n",
463 attr->values[j].integer));
464 break;
465
466 case IPP_TAG_BOOLEAN :
467 if (!strcasecmp(val, "true") ||
468 !strcasecmp(val, "on") ||
469 !strcasecmp(val, "yes"))
470 {
471 /*
472 * Boolean value - true...
473 */
474
475 attr->values[j].boolean = 1;
476
477 DEBUG_puts("cupsEncodeOptions2: Added boolean true value...");
478 }
479 else
480 {
481 /*
482 * Boolean value - false...
483 */
484
485 attr->values[j].boolean = 0;
486
487 DEBUG_puts("cupsEncodeOptions2: Added boolean false value...");
488 }
489 break;
490
491 case IPP_TAG_RANGE :
492 /*
493 * Range...
494 */
495
496 if (*val == '-')
497 {
498 attr->values[j].range.lower = 1;
499 s = val;
500 }
501 else
502 attr->values[j].range.lower = strtol(val, &s, 10);
503
504 if (*s == '-')
505 {
506 if (s[1])
507 attr->values[j].range.upper = strtol(s + 1, NULL, 10);
508 else
509 attr->values[j].range.upper = 2147483647;
510 }
511 else
512 attr->values[j].range.upper = attr->values[j].range.lower;
513
514 DEBUG_printf(("cupsEncodeOptions2: Added range option value %d-%d...\n",
515 attr->values[j].range.lower,
516 attr->values[j].range.upper));
517 break;
518
519 case IPP_TAG_RESOLUTION :
520 /*
521 * Resolution...
522 */
523
524 attr->values[j].resolution.xres = strtol(val, &s, 10);
525
526 if (*s == 'x')
527 attr->values[j].resolution.yres = strtol(s + 1, &s, 10);
528 else
529 attr->values[j].resolution.yres = attr->values[j].resolution.xres;
530
531 if (!strcasecmp(s, "dpc"))
532 attr->values[j].resolution.units = IPP_RES_PER_CM;
533 else
534 attr->values[j].resolution.units = IPP_RES_PER_INCH;
535
536 DEBUG_printf(("cupsEncodeOptions2: Added resolution option value %s...\n",
537 val));
538 break;
539
540 case IPP_TAG_STRING :
541 /*
542 * octet-string
543 */
544
545 attr->values[j].unknown.length = (int)strlen(val);
546 attr->values[j].unknown.data = strdup(val);
547
548 DEBUG_printf(("cupsEncodeOptions2: Added octet-string value "
549 "\"%s\"...\n", (char *)attr->values[j].unknown.data));
550 break;
551
552 case IPP_TAG_BEGIN_COLLECTION :
553 /*
554 * Collection value
555 */
556
557 num_cols = cupsParseOptions(val, 0, &cols);
558 if ((collection = ippNew()) == NULL)
559 {
560 cupsFreeOptions(num_cols, cols);
561
562 if (copy)
563 free(copy);
564
565 ippDeleteAttribute(ipp, attr);
566 return;
567 }
568
569 attr->values[j].collection = collection;
570 cupsEncodeOptions2(collection, num_cols, cols, IPP_TAG_JOB);
571 cupsFreeOptions(num_cols, cols);
572 break;
573
574 default :
575 if ((attr->values[j].string.text = _cupsStrAlloc(val)) == NULL)
576 {
577 /*
578 * Ran out of memory!
579 */
580
581 DEBUG_puts("cupsEncodeOptions2: Ran out of memory for string!");
582
583 if (copy)
584 free(copy);
585
586 ippDeleteAttribute(ipp, attr);
587 return;
588 }
589
590 DEBUG_printf(("cupsEncodeOptions2: Added string value \"%s\"...\n",
591 val));
592 break;
593 }
594 }
595
596 if (copy)
597 free(copy);
598 }
599 }
600
601
602 /*
603 * '_ippFindOption()' - Find the attribute information for an option.
604 */
605
606 _ipp_option_t * /* O - Attribute information */
607 _ippFindOption(const char *name) /* I - Option/attribute name */
608 {
609 _ipp_option_t key; /* Search key */
610
611
612 /*
613 * Lookup the proper value and group tags for this option...
614 */
615
616 key.name = name;
617
618 return ((_ipp_option_t *)bsearch(&key, ipp_options,
619 sizeof(ipp_options) / sizeof(ipp_options[0]),
620 sizeof(ipp_options[0]),
621 (int (*)(const void *, const void *))
622 compare_ipp_options));
623 }
624
625
626 /*
627 * 'compare_ipp_options()' - Compare two IPP options.
628 */
629
630 static int /* O - Result of comparison */
631 compare_ipp_options(_ipp_option_t *a, /* I - First option */
632 _ipp_option_t *b) /* I - Second option */
633 {
634 return (strcmp(a->name, b->name));
635 }
636
637
638 /*
639 * End of "$Id: encode.c 7696 2008-06-26 00:54:42Z mike $".
640 */