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[thirdparty/cups.git] / cups / dest-options.c
1 /*
2 * Destination option/media support for CUPS.
3 *
4 * Copyright 2012-2016 by Apple Inc.
5 *
6 * These coded instructions, statements, and computer programs are the
7 * property of Apple Inc. and are protected by Federal copyright
8 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
9 * which should have been included with this file. If this file is
10 * missing or damaged, see the license at "http://www.cups.org/".
11 *
12 * This file is subject to the Apple OS-Developed Software exception.
13 */
14
15 /*
16 * Include necessary headers...
17 */
18
19 #include "cups-private.h"
20
21
22 /*
23 * Local constants...
24 */
25
26 #define _CUPS_MEDIA_READY_TTL 30 /* Life of xxx-ready values */
27
28
29 /*
30 * Local functions...
31 */
32
33 static void cups_add_dconstres(cups_array_t *a, ipp_t *collection);
34 static int cups_compare_dconstres(_cups_dconstres_t *a,
35 _cups_dconstres_t *b);
36 static int cups_compare_media_db(_cups_media_db_t *a,
37 _cups_media_db_t *b);
38 static _cups_media_db_t *cups_copy_media_db(_cups_media_db_t *mdb);
39 static void cups_create_cached(http_t *http, cups_dinfo_t *dinfo,
40 unsigned flags);
41 static void cups_create_constraints(cups_dinfo_t *dinfo);
42 static void cups_create_defaults(cups_dinfo_t *dinfo);
43 static void cups_create_media_db(cups_dinfo_t *dinfo,
44 unsigned flags);
45 static void cups_free_media_db(_cups_media_db_t *mdb);
46 static int cups_get_media_db(http_t *http, cups_dinfo_t *dinfo,
47 pwg_media_t *pwg, unsigned flags,
48 cups_size_t *size);
49 static int cups_is_close_media_db(_cups_media_db_t *a,
50 _cups_media_db_t *b);
51 static cups_array_t *cups_test_constraints(cups_dinfo_t *dinfo,
52 const char *new_option,
53 const char *new_value,
54 int num_options,
55 cups_option_t *options,
56 int *num_conflicts,
57 cups_option_t **conflicts);
58 static void cups_update_ready(http_t *http, cups_dinfo_t *dinfo);
59
60
61 /*
62 * 'cupsCheckDestSupported()' - Check that the option and value are supported
63 * by the destination.
64 *
65 * Returns 1 if supported, 0 otherwise.
66 *
67 * @since CUPS 1.6/macOS 10.8@
68 */
69
70 int /* O - 1 if supported, 0 otherwise */
71 cupsCheckDestSupported(
72 http_t *http, /* I - Connection to destination */
73 cups_dest_t *dest, /* I - Destination */
74 cups_dinfo_t *dinfo, /* I - Destination information */
75 const char *option, /* I - Option */
76 const char *value) /* I - Value */
77 {
78 int i; /* Looping var */
79 char temp[1024]; /* Temporary string */
80 int int_value; /* Integer value */
81 int xres_value, /* Horizontal resolution */
82 yres_value; /* Vertical resolution */
83 ipp_res_t units_value; /* Resolution units */
84 ipp_attribute_t *attr; /* Attribute */
85 _ipp_value_t *attrval; /* Current attribute value */
86
87
88 /*
89 * Range check input...
90 */
91
92 if (!http || !dest || !dinfo || !option || !value)
93 return (0);
94
95 /*
96 * Lookup the attribute...
97 */
98
99 if (strstr(option, "-supported"))
100 attr = ippFindAttribute(dinfo->attrs, option, IPP_TAG_ZERO);
101 else
102 {
103 snprintf(temp, sizeof(temp), "%s-supported", option);
104 attr = ippFindAttribute(dinfo->attrs, temp, IPP_TAG_ZERO);
105 }
106
107 if (!attr)
108 return (0);
109
110 /*
111 * Compare values...
112 */
113
114 if (!strcmp(option, "media") && !strncmp(value, "custom_", 7))
115 {
116 /*
117 * Check range of custom media sizes...
118 */
119
120 pwg_media_t *pwg; /* Current PWG media size info */
121 int min_width, /* Minimum width */
122 min_length, /* Minimum length */
123 max_width, /* Maximum width */
124 max_length; /* Maximum length */
125
126 /*
127 * Get the minimum and maximum size...
128 */
129
130 min_width = min_length = INT_MAX;
131 max_width = max_length = 0;
132
133 for (i = attr->num_values, attrval = attr->values;
134 i > 0;
135 i --, attrval ++)
136 {
137 if (!strncmp(attrval->string.text, "custom_min_", 11) &&
138 (pwg = pwgMediaForPWG(attrval->string.text)) != NULL)
139 {
140 min_width = pwg->width;
141 min_length = pwg->length;
142 }
143 else if (!strncmp(attrval->string.text, "custom_max_", 11) &&
144 (pwg = pwgMediaForPWG(attrval->string.text)) != NULL)
145 {
146 max_width = pwg->width;
147 max_length = pwg->length;
148 }
149 }
150
151 /*
152 * Check the range...
153 */
154
155 if (min_width < INT_MAX && max_width > 0 &&
156 (pwg = pwgMediaForPWG(value)) != NULL &&
157 pwg->width >= min_width && pwg->width <= max_width &&
158 pwg->length >= min_length && pwg->length <= max_length)
159 return (1);
160 }
161 else
162 {
163 /*
164 * Check literal values...
165 */
166
167 switch (attr->value_tag)
168 {
169 case IPP_TAG_INTEGER :
170 case IPP_TAG_ENUM :
171 int_value = atoi(value);
172
173 for (i = 0; i < attr->num_values; i ++)
174 if (attr->values[i].integer == int_value)
175 return (1);
176 break;
177
178 case IPP_TAG_BOOLEAN :
179 return (attr->values[0].boolean);
180
181 case IPP_TAG_RANGE :
182 int_value = atoi(value);
183
184 for (i = 0; i < attr->num_values; i ++)
185 if (int_value >= attr->values[i].range.lower &&
186 int_value <= attr->values[i].range.upper)
187 return (1);
188 break;
189
190 case IPP_TAG_RESOLUTION :
191 if (sscanf(value, "%dx%d%15s", &xres_value, &yres_value, temp) != 3)
192 {
193 if (sscanf(value, "%d%15s", &xres_value, temp) != 2)
194 return (0);
195
196 yres_value = xres_value;
197 }
198
199 if (!strcmp(temp, "dpi"))
200 units_value = IPP_RES_PER_INCH;
201 else if (!strcmp(temp, "dpc") || !strcmp(temp, "dpcm"))
202 units_value = IPP_RES_PER_CM;
203 else
204 return (0);
205
206 for (i = attr->num_values, attrval = attr->values;
207 i > 0;
208 i --, attrval ++)
209 {
210 if (attrval->resolution.xres == xres_value &&
211 attrval->resolution.yres == yres_value &&
212 attrval->resolution.units == units_value)
213 return (1);
214 }
215 break;
216
217 case IPP_TAG_TEXT :
218 case IPP_TAG_NAME :
219 case IPP_TAG_KEYWORD :
220 case IPP_TAG_CHARSET :
221 case IPP_TAG_URI :
222 case IPP_TAG_URISCHEME :
223 case IPP_TAG_MIMETYPE :
224 case IPP_TAG_LANGUAGE :
225 case IPP_TAG_TEXTLANG :
226 case IPP_TAG_NAMELANG :
227 for (i = 0; i < attr->num_values; i ++)
228 if (!strcmp(attr->values[i].string.text, value))
229 return (1);
230 break;
231
232 default :
233 break;
234 }
235 }
236
237 /*
238 * If we get there the option+value is not supported...
239 */
240
241 return (0);
242 }
243
244
245 /*
246 * 'cupsCopyDestConflicts()' - Get conflicts and resolutions for a new
247 * option/value pair.
248 *
249 * "num_options" and "options" represent the currently selected options by the
250 * user. "new_option" and "new_value" are the setting the user has just
251 * changed.
252 *
253 * Returns 1 if there is a conflict, 0 if there are no conflicts, and -1 if
254 * there was an unrecoverable error such as a resolver loop.
255 *
256 * If "num_conflicts" and "conflicts" are not @code NULL@, they are set to
257 * contain the list of conflicting option/value pairs. Similarly, if
258 * "num_resolved" and "resolved" are not @code NULL@ they will be set to the
259 * list of changes needed to resolve the conflict.
260 *
261 * If cupsCopyDestConflicts returns 1 but "num_resolved" and "resolved" are set
262 * to 0 and @code NULL@, respectively, then the conflict cannot be resolved.
263 *
264 * @since CUPS 1.6/macOS 10.8@
265 */
266
267 int /* O - 1 if there is a conflict, 0 if none, -1 on error */
268 cupsCopyDestConflicts(
269 http_t *http, /* I - Connection to destination */
270 cups_dest_t *dest, /* I - Destination */
271 cups_dinfo_t *dinfo, /* I - Destination information */
272 int num_options, /* I - Number of current options */
273 cups_option_t *options, /* I - Current options */
274 const char *new_option, /* I - New option */
275 const char *new_value, /* I - New value */
276 int *num_conflicts, /* O - Number of conflicting options */
277 cups_option_t **conflicts, /* O - Conflicting options */
278 int *num_resolved, /* O - Number of options to resolve */
279 cups_option_t **resolved) /* O - Resolved options */
280 {
281 int i, /* Looping var */
282 have_conflicts = 0, /* Do we have conflicts? */
283 changed, /* Did we change something? */
284 tries, /* Number of tries for resolution */
285 num_myconf = 0, /* My number of conflicting options */
286 num_myres = 0; /* My number of resolved options */
287 cups_option_t *myconf = NULL, /* My conflicting options */
288 *myres = NULL, /* My resolved options */
289 *myoption, /* My current option */
290 *option; /* Current option */
291 cups_array_t *active = NULL, /* Active conflicts */
292 *pass = NULL, /* Resolvers for this pass */
293 *resolvers = NULL, /* Resolvers we have used */
294 *test; /* Test array for conflicts */
295 _cups_dconstres_t *c, /* Current constraint */
296 *r; /* Current resolver */
297 ipp_attribute_t *attr; /* Current attribute */
298 char value[2048]; /* Current attribute value as string */
299 const char *myvalue; /* Current value of an option */
300
301
302 /*
303 * Clear returned values...
304 */
305
306 if (num_conflicts)
307 *num_conflicts = 0;
308
309 if (conflicts)
310 *conflicts = NULL;
311
312 if (num_resolved)
313 *num_resolved = 0;
314
315 if (resolved)
316 *resolved = NULL;
317
318 /*
319 * Range check input...
320 */
321
322 if (!http || !dest || !dinfo ||
323 (num_conflicts != NULL) != (conflicts != NULL) ||
324 (num_resolved != NULL) != (resolved != NULL))
325 return (0);
326
327 /*
328 * Load constraints as needed...
329 */
330
331 if (!dinfo->constraints)
332 cups_create_constraints(dinfo);
333
334 if (cupsArrayCount(dinfo->constraints) == 0)
335 return (0);
336
337 if (!dinfo->num_defaults)
338 cups_create_defaults(dinfo);
339
340 /*
341 * If we are resolving, create a shadow array...
342 */
343
344 if (num_resolved)
345 {
346 for (i = num_options, option = options; i > 0; i --, option ++)
347 num_myres = cupsAddOption(option->name, option->value, num_myres, &myres);
348
349 if (new_option && new_value)
350 num_myres = cupsAddOption(new_option, new_value, num_myres, &myres);
351 }
352 else
353 {
354 num_myres = num_options;
355 myres = options;
356 }
357
358 /*
359 * Check for any conflicts...
360 */
361
362 if (num_resolved)
363 pass = cupsArrayNew((cups_array_func_t)cups_compare_dconstres, NULL);
364
365 for (tries = 0; tries < 100; tries ++)
366 {
367 /*
368 * Check for any conflicts...
369 */
370
371 if (num_conflicts || num_resolved)
372 {
373 cupsFreeOptions(num_myconf, myconf);
374
375 num_myconf = 0;
376 myconf = NULL;
377 active = cups_test_constraints(dinfo, new_option, new_value,
378 num_myres, myres, &num_myconf,
379 &myconf);
380 }
381 else
382 active = cups_test_constraints(dinfo, new_option, new_value, num_myres,
383 myres, NULL, NULL);
384
385 have_conflicts = (active != NULL);
386
387 if (!active || !num_resolved)
388 break; /* All done */
389
390 /*
391 * Scan the constraints that were triggered to apply resolvers...
392 */
393
394 if (!resolvers)
395 resolvers = cupsArrayNew((cups_array_func_t)cups_compare_dconstres, NULL);
396
397 for (c = (_cups_dconstres_t *)cupsArrayFirst(active), changed = 0;
398 c;
399 c = (_cups_dconstres_t *)cupsArrayNext(active))
400 {
401 if (cupsArrayFind(pass, c))
402 continue; /* Already applied this resolver... */
403
404 if (cupsArrayFind(resolvers, c))
405 {
406 DEBUG_printf(("1cupsCopyDestConflicts: Resolver loop with %s.",
407 c->name));
408 have_conflicts = -1;
409 goto cleanup;
410 }
411
412 if ((r = cupsArrayFind(dinfo->resolvers, c)) == NULL)
413 {
414 DEBUG_printf(("1cupsCopyDestConflicts: Resolver %s not found.",
415 c->name));
416 have_conflicts = -1;
417 goto cleanup;
418 }
419
420 /*
421 * Add the options from the resolver...
422 */
423
424 cupsArrayAdd(pass, r);
425 cupsArrayAdd(resolvers, r);
426
427 for (attr = ippFirstAttribute(r->collection);
428 attr;
429 attr = ippNextAttribute(r->collection))
430 {
431 if (new_option && !strcmp(attr->name, new_option))
432 continue; /* Ignore this if we just changed it */
433
434 if (ippAttributeString(attr, value, sizeof(value)) >= sizeof(value))
435 continue; /* Ignore if the value is too long */
436
437 if ((test = cups_test_constraints(dinfo, attr->name, value, num_myres,
438 myres, NULL, NULL)) == NULL)
439 {
440 /*
441 * That worked, flag it...
442 */
443
444 changed = 1;
445 }
446 else
447 cupsArrayDelete(test);
448
449 /*
450 * Add the option/value from the resolver regardless of whether it
451 * worked; this makes sure that we can cascade several changes to
452 * make things resolve...
453 */
454
455 num_myres = cupsAddOption(attr->name, value, num_myres, &myres);
456 }
457 }
458
459 if (!changed)
460 {
461 DEBUG_puts("1cupsCopyDestConflicts: Unable to resolve constraints.");
462 have_conflicts = -1;
463 goto cleanup;
464 }
465
466 cupsArrayClear(pass);
467
468 cupsArrayDelete(active);
469 active = NULL;
470 }
471
472 if (tries >= 100)
473 {
474 DEBUG_puts("1cupsCopyDestConflicts: Unable to resolve after 100 tries.");
475 have_conflicts = -1;
476 goto cleanup;
477 }
478
479 /*
480 * Copy resolved options as needed...
481 */
482
483 if (num_resolved)
484 {
485 for (i = num_myres, myoption = myres; i > 0; i --, myoption ++)
486 {
487 if ((myvalue = cupsGetOption(myoption->name, num_options,
488 options)) == NULL ||
489 strcmp(myvalue, myoption->value))
490 {
491 if (new_option && !strcmp(new_option, myoption->name) &&
492 new_value && !strcmp(new_value, myoption->value))
493 continue;
494
495 *num_resolved = cupsAddOption(myoption->name, myoption->value,
496 *num_resolved, resolved);
497 }
498 }
499 }
500
501 /*
502 * Clean up...
503 */
504
505 cleanup:
506
507 cupsArrayDelete(active);
508 cupsArrayDelete(pass);
509 cupsArrayDelete(resolvers);
510
511 if (num_resolved)
512 {
513 /*
514 * Free shadow copy of options...
515 */
516
517 cupsFreeOptions(num_myres, myres);
518 }
519
520 if (num_conflicts)
521 {
522 /*
523 * Return conflicting options to caller...
524 */
525
526 *num_conflicts = num_myconf;
527 *conflicts = myconf;
528 }
529 else
530 {
531 /*
532 * Free conflicting options...
533 */
534
535 cupsFreeOptions(num_myconf, myconf);
536 }
537
538 return (have_conflicts);
539 }
540
541
542 /*
543 * 'cupsCopyDestInfo()' - Get the supported values/capabilities for the
544 * destination.
545 *
546 * The caller is responsible for calling @link cupsFreeDestInfo@ on the return
547 * value. @code NULL@ is returned on error.
548 *
549 * @since CUPS 1.6/macOS 10.8@
550 */
551
552 cups_dinfo_t * /* O - Destination information */
553 cupsCopyDestInfo(
554 http_t *http, /* I - Connection to destination */
555 cups_dest_t *dest) /* I - Destination */
556 {
557 cups_dinfo_t *dinfo; /* Destination information */
558 ipp_t *request, /* Get-Printer-Attributes request */
559 *response; /* Supported attributes */
560 int tries, /* Number of tries so far */
561 delay, /* Current retry delay */
562 prev_delay; /* Next retry delay */
563 const char *uri; /* Printer URI */
564 char resource[1024]; /* Resource path */
565 int version; /* IPP version */
566 ipp_status_t status; /* Status of request */
567 static const char * const requested_attrs[] =
568 { /* Requested attributes */
569 "job-template",
570 "media-col-database",
571 "printer-description"
572 };
573
574
575 DEBUG_printf(("cupsCopyDestSupported(http=%p, dest=%p(%s))", (void *)http, (void *)dest, dest ? dest->name : ""));
576
577 /*
578 * Range check input...
579 */
580
581 if (!http || !dest)
582 return (NULL);
583
584 /*
585 * Get the printer URI and resource path...
586 */
587
588 if ((uri = _cupsGetDestResource(dest, resource, sizeof(resource))) == NULL)
589 return (NULL);
590
591 /*
592 * Get the supported attributes...
593 */
594
595 delay = 1;
596 prev_delay = 1;
597 tries = 0;
598 version = 20;
599
600 do
601 {
602 /*
603 * Send a Get-Printer-Attributes request...
604 */
605
606 request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
607 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL,
608 uri);
609 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
610 "requesting-user-name", NULL, cupsUser());
611 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
612 "requested-attributes",
613 (int)(sizeof(requested_attrs) / sizeof(requested_attrs[0])),
614 NULL, requested_attrs);
615 response = cupsDoRequest(http, request, resource);
616 status = cupsLastError();
617
618 if (status > IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED)
619 {
620 DEBUG_printf(("cupsCopyDestSupported: Get-Printer-Attributes for '%s' "
621 "returned %s (%s)", dest->name, ippErrorString(status),
622 cupsLastErrorString()));
623
624 ippDelete(response);
625 response = NULL;
626
627 if (status == IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED && version > 11)
628 version = 11;
629 else if (status == IPP_STATUS_ERROR_BUSY)
630 {
631 sleep((unsigned)delay);
632
633 delay = _cupsNextDelay(delay, &prev_delay);
634 }
635 else
636 return (NULL);
637 }
638
639 tries ++;
640 }
641 while (!response && tries < 10);
642
643 if (!response)
644 return (NULL);
645
646 /*
647 * Allocate a cups_dinfo_t structure and return it...
648 */
649
650 if ((dinfo = calloc(1, sizeof(cups_dinfo_t))) == NULL)
651 {
652 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0);
653 ippDelete(response);
654 return (NULL);
655 }
656
657 dinfo->version = version;
658 dinfo->uri = uri;
659 dinfo->resource = _cupsStrAlloc(resource);
660 dinfo->attrs = response;
661
662 return (dinfo);
663 }
664
665
666 /*
667 * 'cupsFindDestDefault()' - Find the default value(s) for the given option.
668 *
669 * The returned value is an IPP attribute. Use the @code ippGetBoolean@,
670 * @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
671 * @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
672 * @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
673 * functions to inspect the default value(s) as needed.
674 *
675 * @since CUPS 1.7/macOS 10.9@
676 */
677
678 ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
679 cupsFindDestDefault(
680 http_t *http, /* I - Connection to destination */
681 cups_dest_t *dest, /* I - Destination */
682 cups_dinfo_t *dinfo, /* I - Destination information */
683 const char *option) /* I - Option/attribute name */
684 {
685 char name[IPP_MAX_NAME]; /* Attribute name */
686
687
688 /*
689 * Range check input...
690 */
691
692 if (!http || !dest || !dinfo || !option)
693 {
694 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
695 return (NULL);
696 }
697
698 /*
699 * Find and return the attribute...
700 */
701
702 snprintf(name, sizeof(name), "%s-default", option);
703 return (ippFindAttribute(dinfo->attrs, name, IPP_TAG_ZERO));
704 }
705
706
707 /*
708 * 'cupsFindDestReady()' - Find the default value(s) for the given option.
709 *
710 * The returned value is an IPP attribute. Use the @code ippGetBoolean@,
711 * @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
712 * @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
713 * @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
714 * functions to inspect the default value(s) as needed.
715 *
716 * @since CUPS 1.7/macOS 10.9@
717 */
718
719 ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
720 cupsFindDestReady(
721 http_t *http, /* I - Connection to destination */
722 cups_dest_t *dest, /* I - Destination */
723 cups_dinfo_t *dinfo, /* I - Destination information */
724 const char *option) /* I - Option/attribute name */
725 {
726 char name[IPP_MAX_NAME]; /* Attribute name */
727
728
729 /*
730 * Range check input...
731 */
732
733 if (!http || !dest || !dinfo || !option)
734 {
735 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
736 return (NULL);
737 }
738
739 /*
740 * Find and return the attribute...
741 */
742
743 cups_update_ready(http, dinfo);
744
745 snprintf(name, sizeof(name), "%s-ready", option);
746 return (ippFindAttribute(dinfo->ready_attrs, name, IPP_TAG_ZERO));
747 }
748
749
750 /*
751 * 'cupsFindDestSupported()' - Find the default value(s) for the given option.
752 *
753 * The returned value is an IPP attribute. Use the @code ippGetBoolean@,
754 * @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
755 * @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
756 * @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
757 * functions to inspect the default value(s) as needed.
758 *
759 * @since CUPS 1.7/macOS 10.9@
760 */
761
762 ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
763 cupsFindDestSupported(
764 http_t *http, /* I - Connection to destination */
765 cups_dest_t *dest, /* I - Destination */
766 cups_dinfo_t *dinfo, /* I - Destination information */
767 const char *option) /* I - Option/attribute name */
768 {
769 char name[IPP_MAX_NAME]; /* Attribute name */
770
771
772 /*
773 * Range check input...
774 */
775
776 if (!http || !dest || !dinfo || !option)
777 {
778 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
779 return (NULL);
780 }
781
782 /*
783 * Find and return the attribute...
784 */
785
786 snprintf(name, sizeof(name), "%s-supported", option);
787 return (ippFindAttribute(dinfo->attrs, name, IPP_TAG_ZERO));
788 }
789
790
791 /*
792 * 'cupsFreeDestInfo()' - Free destination information obtained using
793 * @link cupsCopyDestInfo@.
794 */
795
796 void
797 cupsFreeDestInfo(cups_dinfo_t *dinfo) /* I - Destination information */
798 {
799 /*
800 * Range check input...
801 */
802
803 if (!dinfo)
804 return;
805
806 /*
807 * Free memory and return...
808 */
809
810 _cupsStrFree(dinfo->resource);
811
812 cupsArrayDelete(dinfo->constraints);
813 cupsArrayDelete(dinfo->resolvers);
814
815 cupsArrayDelete(dinfo->localizations);
816
817 cupsArrayDelete(dinfo->media_db);
818
819 cupsArrayDelete(dinfo->cached_db);
820
821 ippDelete(dinfo->ready_attrs);
822 cupsArrayDelete(dinfo->ready_db);
823
824 ippDelete(dinfo->attrs);
825
826 free(dinfo);
827 }
828
829
830 /*
831 * 'cupsGetDestMediaByIndex()' - Get a media name, dimension, and margins for a
832 * specific size.
833 *
834 * The @code flags@ parameter determines which set of media are indexed. For
835 * example, passing @code CUPS_MEDIA_FLAGS_BORDERLESS@ will get the Nth
836 * borderless size supported by the printer.
837 *
838 * @since CUPS 1.7/macOS 10.9@
839 */
840
841 int /* O - 1 on success, 0 on failure */
842 cupsGetDestMediaByIndex(
843 http_t *http, /* I - Connection to destination */
844 cups_dest_t *dest, /* I - Destination */
845 cups_dinfo_t *dinfo, /* I - Destination information */
846 int n, /* I - Media size number (0-based) */
847 unsigned flags, /* I - Media flags */
848 cups_size_t *size) /* O - Media size information */
849 {
850 _cups_media_db_t *nsize; /* Size for N */
851 pwg_media_t *pwg; /* PWG media name for size */
852
853
854 /*
855 * Range check input...
856 */
857
858 if (size)
859 memset(size, 0, sizeof(cups_size_t));
860
861 if (!http || !dest || !dinfo || n < 0 || !size)
862 {
863 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
864 return (0);
865 }
866
867 /*
868 * Load media list as needed...
869 */
870
871 if (flags & CUPS_MEDIA_FLAGS_READY)
872 cups_update_ready(http, dinfo);
873
874 if (!dinfo->cached_db || dinfo->cached_flags != flags)
875 cups_create_cached(http, dinfo, flags);
876
877 /*
878 * Copy the size over and return...
879 */
880
881 if ((nsize = (_cups_media_db_t *)cupsArrayIndex(dinfo->cached_db, n)) == NULL)
882 {
883 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
884 return (0);
885 }
886
887 if (nsize->size_name)
888 strlcpy(size->media, nsize->size_name, sizeof(size->media));
889 else if (nsize->key)
890 strlcpy(size->media, nsize->key, sizeof(size->media));
891 else if ((pwg = pwgMediaForSize(nsize->width, nsize->length)) != NULL)
892 strlcpy(size->media, pwg->pwg, sizeof(size->media));
893 else
894 {
895 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
896 return (0);
897 }
898
899 size->width = nsize->width;
900 size->length = nsize->length;
901 size->bottom = nsize->bottom;
902 size->left = nsize->left;
903 size->right = nsize->right;
904 size->top = nsize->top;
905
906 return (1);
907 }
908
909
910 /*
911 * 'cupsGetDestMediaByName()' - Get media names, dimensions, and margins.
912 *
913 * The "media" string is a PWG media name. "Flags" provides some matching
914 * guidance (multiple flags can be combined):
915 *
916 * CUPS_MEDIA_FLAGS_DEFAULT = find the closest size supported by the printer,
917 * CUPS_MEDIA_FLAGS_BORDERLESS = find a borderless size,
918 * CUPS_MEDIA_FLAGS_DUPLEX = find a size compatible with 2-sided printing,
919 * CUPS_MEDIA_FLAGS_EXACT = find an exact match for the size, and
920 * CUPS_MEDIA_FLAGS_READY = if the printer supports media sensing, find the
921 * size amongst the "ready" media.
922 *
923 * The matching result (if any) is returned in the "cups_size_t" structure.
924 *
925 * Returns 1 when there is a match and 0 if there is not a match.
926 *
927 * @since CUPS 1.6/macOS 10.8@
928 */
929
930 int /* O - 1 on match, 0 on failure */
931 cupsGetDestMediaByName(
932 http_t *http, /* I - Connection to destination */
933 cups_dest_t *dest, /* I - Destination */
934 cups_dinfo_t *dinfo, /* I - Destination information */
935 const char *media, /* I - Media name */
936 unsigned flags, /* I - Media matching flags */
937 cups_size_t *size) /* O - Media size information */
938 {
939 pwg_media_t *pwg; /* PWG media info */
940
941
942 /*
943 * Range check input...
944 */
945
946 if (size)
947 memset(size, 0, sizeof(cups_size_t));
948
949 if (!http || !dest || !dinfo || !media || !size)
950 {
951 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
952 return (0);
953 }
954
955 /*
956 * Lookup the media size name...
957 */
958
959 if ((pwg = pwgMediaForPWG(media)) == NULL)
960 if ((pwg = pwgMediaForLegacy(media)) == NULL)
961 {
962 DEBUG_printf(("1cupsGetDestMediaByName: Unknown size '%s'.", media));
963 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown media size name."), 1);
964 return (0);
965 }
966
967 /*
968 * Lookup the size...
969 */
970
971 return (cups_get_media_db(http, dinfo, pwg, flags, size));
972 }
973
974
975 /*
976 * 'cupsGetDestMediaBySize()' - Get media names, dimensions, and margins.
977 *
978 * "Width" and "length" are the dimensions in hundredths of millimeters.
979 * "Flags" provides some matching guidance (multiple flags can be combined):
980 *
981 * CUPS_MEDIA_FLAGS_DEFAULT = find the closest size supported by the printer,
982 * CUPS_MEDIA_FLAGS_BORDERLESS = find a borderless size,
983 * CUPS_MEDIA_FLAGS_DUPLEX = find a size compatible with 2-sided printing,
984 * CUPS_MEDIA_FLAGS_EXACT = find an exact match for the size, and
985 * CUPS_MEDIA_FLAGS_READY = if the printer supports media sensing, find the
986 * size amongst the "ready" media.
987 *
988 * The matching result (if any) is returned in the "cups_size_t" structure.
989 *
990 * Returns 1 when there is a match and 0 if there is not a match.
991 *
992 * @since CUPS 1.6/macOS 10.8@
993 */
994
995 int /* O - 1 on match, 0 on failure */
996 cupsGetDestMediaBySize(
997 http_t *http, /* I - Connection to destination */
998 cups_dest_t *dest, /* I - Destination */
999 cups_dinfo_t *dinfo, /* I - Destination information */
1000 int width, /* I - Media width in hundredths of
1001 * of millimeters */
1002 int length, /* I - Media length in hundredths of
1003 * of millimeters */
1004 unsigned flags, /* I - Media matching flags */
1005 cups_size_t *size) /* O - Media size information */
1006 {
1007 pwg_media_t *pwg; /* PWG media info */
1008
1009
1010 /*
1011 * Range check input...
1012 */
1013
1014 if (size)
1015 memset(size, 0, sizeof(cups_size_t));
1016
1017 if (!http || !dest || !dinfo || width <= 0 || length <= 0 || !size)
1018 {
1019 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
1020 return (0);
1021 }
1022
1023 /*
1024 * Lookup the media size name...
1025 */
1026
1027 if ((pwg = pwgMediaForSize(width, length)) == NULL)
1028 {
1029 DEBUG_printf(("1cupsGetDestMediaBySize: Invalid size %dx%d.", width,
1030 length));
1031 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid media size."), 1);
1032 return (0);
1033 }
1034
1035 /*
1036 * Lookup the size...
1037 */
1038
1039 return (cups_get_media_db(http, dinfo, pwg, flags, size));
1040 }
1041
1042
1043 /*
1044 * 'cupsGetDestMediaCount()' - Get the number of sizes supported by a
1045 * destination.
1046 *
1047 * The @code flags@ parameter determines the set of media sizes that are
1048 * counted. For example, passing @code CUPS_MEDIA_FLAGS_BORDERLESS@ will return
1049 * the number of borderless sizes.
1050 *
1051 * @since CUPS 1.7/macOS 10.9@
1052 */
1053
1054 int /* O - Number of sizes */
1055 cupsGetDestMediaCount(
1056 http_t *http, /* I - Connection to destination */
1057 cups_dest_t *dest, /* I - Destination */
1058 cups_dinfo_t *dinfo, /* I - Destination information */
1059 unsigned flags) /* I - Media flags */
1060 {
1061 /*
1062 * Range check input...
1063 */
1064
1065 if (!http || !dest || !dinfo)
1066 {
1067 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
1068 return (0);
1069 }
1070
1071 /*
1072 * Load media list as needed...
1073 */
1074
1075 if (flags & CUPS_MEDIA_FLAGS_READY)
1076 cups_update_ready(http, dinfo);
1077
1078 if (!dinfo->cached_db || dinfo->cached_flags != flags)
1079 cups_create_cached(http, dinfo, flags);
1080
1081 return (cupsArrayCount(dinfo->cached_db));
1082 }
1083
1084
1085 /*
1086 * 'cupsGetDestMediaDefault()' - Get the default size for a destination.
1087 *
1088 * The @code flags@ parameter determines which default size is returned. For
1089 * example, passing @code CUPS_MEDIA_FLAGS_BORDERLESS@ will return the default
1090 * borderless size, typically US Letter or A4, but sometimes 4x6 photo media.
1091 *
1092 * @since CUPS 1.7/macOS 10.9@
1093 */
1094
1095 int /* O - 1 on success, 0 on failure */
1096 cupsGetDestMediaDefault(
1097 http_t *http, /* I - Connection to destination */
1098 cups_dest_t *dest, /* I - Destination */
1099 cups_dinfo_t *dinfo, /* I - Destination information */
1100 unsigned flags, /* I - Media flags */
1101 cups_size_t *size) /* O - Media size information */
1102 {
1103 const char *media; /* Default media size */
1104
1105
1106 /*
1107 * Range check input...
1108 */
1109
1110 if (size)
1111 memset(size, 0, sizeof(cups_size_t));
1112
1113 if (!http || !dest || !dinfo || !size)
1114 {
1115 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
1116 return (0);
1117 }
1118
1119 /*
1120 * Get the default media size, if any...
1121 */
1122
1123 if ((media = cupsGetOption("media", dest->num_options,
1124 dest->options)) == NULL)
1125 media = "na_letter_8.5x11in";
1126
1127 if (cupsGetDestMediaByName(http, dest, dinfo, media, flags, size))
1128 return (1);
1129
1130 if (strcmp(media, "na_letter_8.5x11in") &&
1131 cupsGetDestMediaByName(http, dest, dinfo, "iso_a4_210x297mm", flags,
1132 size))
1133 return (1);
1134
1135 if (strcmp(media, "iso_a4_210x297mm") &&
1136 cupsGetDestMediaByName(http, dest, dinfo, "na_letter_8.5x11in", flags,
1137 size))
1138 return (1);
1139
1140 if ((flags & CUPS_MEDIA_FLAGS_BORDERLESS) &&
1141 cupsGetDestMediaByName(http, dest, dinfo, "na_index_4x6in", flags, size))
1142 return (1);
1143
1144 /*
1145 * Fall back to the first matching media size...
1146 */
1147
1148 return (cupsGetDestMediaByIndex(http, dest, dinfo, 0, flags, size));
1149 }
1150
1151
1152 /*
1153 * 'cups_add_dconstres()' - Add a constraint or resolver to an array.
1154 */
1155
1156 static void
1157 cups_add_dconstres(
1158 cups_array_t *a, /* I - Array */
1159 ipp_t *collection) /* I - Collection value */
1160 {
1161 ipp_attribute_t *attr; /* Attribute */
1162 _cups_dconstres_t *temp; /* Current constraint/resolver */
1163
1164
1165 if ((attr = ippFindAttribute(collection, "resolver-name",
1166 IPP_TAG_NAME)) == NULL)
1167 return;
1168
1169 if ((temp = calloc(1, sizeof(_cups_dconstres_t))) == NULL)
1170 return;
1171
1172 temp->name = attr->values[0].string.text;
1173 temp->collection = collection;
1174
1175 cupsArrayAdd(a, temp);
1176 }
1177
1178
1179 /*
1180 * 'cups_compare_dconstres()' - Compare to resolver entries.
1181 */
1182
1183 static int /* O - Result of comparison */
1184 cups_compare_dconstres(
1185 _cups_dconstres_t *a, /* I - First resolver */
1186 _cups_dconstres_t *b) /* I - Second resolver */
1187 {
1188 return (strcmp(a->name, b->name));
1189 }
1190
1191
1192 /*
1193 * 'cups_compare_media_db()' - Compare two media entries.
1194 */
1195
1196 static int /* O - Result of comparison */
1197 cups_compare_media_db(
1198 _cups_media_db_t *a, /* I - First media entries */
1199 _cups_media_db_t *b) /* I - Second media entries */
1200 {
1201 int result; /* Result of comparison */
1202
1203
1204 if ((result = a->width - b->width) == 0)
1205 result = a->length - b->length;
1206
1207 return (result);
1208 }
1209
1210
1211 /*
1212 * 'cups_copy_media_db()' - Copy a media entry.
1213 */
1214
1215 static _cups_media_db_t * /* O - New media entry */
1216 cups_copy_media_db(
1217 _cups_media_db_t *mdb) /* I - Media entry to copy */
1218 {
1219 _cups_media_db_t *temp; /* New media entry */
1220
1221
1222 if ((temp = calloc(1, sizeof(_cups_media_db_t))) == NULL)
1223 return (NULL);
1224
1225 if (mdb->color)
1226 temp->color = _cupsStrAlloc(mdb->color);
1227 if (mdb->key)
1228 temp->key = _cupsStrAlloc(mdb->key);
1229 if (mdb->info)
1230 temp->info = _cupsStrAlloc(mdb->info);
1231 if (mdb->size_name)
1232 temp->size_name = _cupsStrAlloc(mdb->size_name);
1233 if (mdb->source)
1234 temp->source = _cupsStrAlloc(mdb->source);
1235 if (mdb->type)
1236 temp->type = _cupsStrAlloc(mdb->type);
1237
1238 temp->width = mdb->width;
1239 temp->length = mdb->length;
1240 temp->bottom = mdb->bottom;
1241 temp->left = mdb->left;
1242 temp->right = mdb->right;
1243 temp->top = mdb->top;
1244
1245 return (temp);
1246 }
1247
1248
1249 /*
1250 * 'cups_create_cached()' - Create the media selection cache.
1251 */
1252
1253 static void
1254 cups_create_cached(http_t *http, /* I - Connection to destination */
1255 cups_dinfo_t *dinfo, /* I - Destination information */
1256 unsigned flags) /* I - Media selection flags */
1257 {
1258 cups_array_t *db; /* Media database array to use */
1259 _cups_media_db_t *mdb, /* Media database entry */
1260 *first; /* First entry this size */
1261
1262
1263 DEBUG_printf(("3cups_create_cached(http=%p, dinfo=%p, flags=%u)", (void *)http, (void *)dinfo, flags));
1264
1265 if (dinfo->cached_db)
1266 cupsArrayDelete(dinfo->cached_db);
1267
1268 dinfo->cached_db = cupsArrayNew(NULL, NULL);
1269 dinfo->cached_flags = flags;
1270
1271 if (flags & CUPS_MEDIA_FLAGS_READY)
1272 {
1273 DEBUG_puts("4cups_create_cached: ready media");
1274
1275 cups_update_ready(http, dinfo);
1276 db = dinfo->ready_db;
1277 }
1278 else
1279 {
1280 DEBUG_puts("4cups_create_cached: supported media");
1281
1282 if (!dinfo->media_db)
1283 cups_create_media_db(dinfo, CUPS_MEDIA_FLAGS_DEFAULT);
1284
1285 db = dinfo->media_db;
1286 }
1287
1288 for (mdb = (_cups_media_db_t *)cupsArrayFirst(db), first = mdb;
1289 mdb;
1290 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1291 {
1292 DEBUG_printf(("4cups_create_cached: %p key=\"%s\", type=\"%s\", %dx%d, B%d L%d R%d T%d", (void *)mdb, mdb->key, mdb->type, mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top));
1293
1294 if (flags & CUPS_MEDIA_FLAGS_BORDERLESS)
1295 {
1296 if (!mdb->left && !mdb->right && !mdb->top && !mdb->bottom)
1297 {
1298 DEBUG_printf(("4cups_create_cached: add %p", (void *)mdb));
1299 cupsArrayAdd(dinfo->cached_db, mdb);
1300 }
1301 }
1302 else if (flags & CUPS_MEDIA_FLAGS_DUPLEX)
1303 {
1304 if (first->width != mdb->width || first->length != mdb->length)
1305 {
1306 DEBUG_printf(("4cups_create_cached: add %p", (void *)first));
1307 cupsArrayAdd(dinfo->cached_db, first);
1308 first = mdb;
1309 }
1310 else if (mdb->left >= first->left && mdb->right >= first->right && mdb->top >= first->top && mdb->bottom >= first->bottom &&
1311 (mdb->left != first->left || mdb->right != first->right || mdb->top != first->top || mdb->bottom != first->bottom))
1312 first = mdb;
1313 }
1314 else
1315 {
1316 DEBUG_printf(("4cups_create_cached: add %p", (void *)mdb));
1317 cupsArrayAdd(dinfo->cached_db, mdb);
1318 }
1319 }
1320
1321 if (flags & CUPS_MEDIA_FLAGS_DUPLEX)
1322 {
1323 DEBUG_printf(("4cups_create_cached: add %p", (void *)first));
1324 cupsArrayAdd(dinfo->cached_db, first);
1325 }
1326 }
1327
1328
1329 /*
1330 * 'cups_create_constraints()' - Create the constraints and resolvers arrays.
1331 */
1332
1333 static void
1334 cups_create_constraints(
1335 cups_dinfo_t *dinfo) /* I - Destination information */
1336 {
1337 int i; /* Looping var */
1338 ipp_attribute_t *attr; /* Attribute */
1339 _ipp_value_t *val; /* Current value */
1340
1341
1342 dinfo->constraints = cupsArrayNew3(NULL, NULL, NULL, 0, NULL,
1343 (cups_afree_func_t)free);
1344 dinfo->resolvers = cupsArrayNew3((cups_array_func_t)cups_compare_dconstres,
1345 NULL, NULL, 0, NULL,
1346 (cups_afree_func_t)free);
1347
1348 if ((attr = ippFindAttribute(dinfo->attrs, "job-constraints-supported",
1349 IPP_TAG_BEGIN_COLLECTION)) != NULL)
1350 {
1351 for (i = attr->num_values, val = attr->values; i > 0; i --, val ++)
1352 cups_add_dconstres(dinfo->constraints, val->collection);
1353 }
1354
1355 if ((attr = ippFindAttribute(dinfo->attrs, "job-resolvers-supported",
1356 IPP_TAG_BEGIN_COLLECTION)) != NULL)
1357 {
1358 for (i = attr->num_values, val = attr->values; i > 0; i --, val ++)
1359 cups_add_dconstres(dinfo->resolvers, val->collection);
1360 }
1361 }
1362
1363
1364 /*
1365 * 'cups_create_defaults()' - Create the -default option array.
1366 *
1367 * TODO: Need to support collection defaults...
1368 */
1369
1370 static void
1371 cups_create_defaults(
1372 cups_dinfo_t *dinfo) /* I - Destination information */
1373 {
1374 ipp_attribute_t *attr; /* Current attribute */
1375 char name[IPP_MAX_NAME + 1],
1376 /* Current name */
1377 *nameptr, /* Pointer into current name */
1378 value[2048]; /* Current value */
1379
1380
1381 /*
1382 * Iterate through the printer attributes looking for xxx-default and adding
1383 * xxx=value to the defaults option array.
1384 */
1385
1386 for (attr = ippFirstAttribute(dinfo->attrs);
1387 attr;
1388 attr = ippNextAttribute(dinfo->attrs))
1389 {
1390 if (!attr->name || attr->group_tag != IPP_TAG_PRINTER)
1391 continue;
1392
1393 if (attr->value_tag == IPP_TAG_BEGIN_COLLECTION)
1394 continue; /* TODO: STR #4096 */
1395
1396 if ((nameptr = attr->name + strlen(attr->name) - 8) <= attr->name ||
1397 strcmp(nameptr, "-default"))
1398 continue;
1399
1400 strlcpy(name, attr->name, sizeof(name));
1401 if ((nameptr = name + strlen(name) - 8) <= name ||
1402 strcmp(nameptr, "-default"))
1403 continue;
1404
1405 *nameptr = '\0';
1406
1407 if (ippAttributeString(attr, value, sizeof(value)) >= sizeof(value))
1408 continue;
1409
1410 dinfo->num_defaults = cupsAddOption(name, value, dinfo->num_defaults,
1411 &dinfo->defaults);
1412 }
1413 }
1414
1415
1416 /*
1417 * 'cups_create_media_db()' - Create the media database.
1418 */
1419
1420 static void
1421 cups_create_media_db(
1422 cups_dinfo_t *dinfo, /* I - Destination information */
1423 unsigned flags) /* I - Media flags */
1424 {
1425 int i; /* Looping var */
1426 _ipp_value_t *val; /* Current value */
1427 ipp_attribute_t *media_col_db, /* media-col-database */
1428 *media_attr, /* media-xxx */
1429 *x_dimension, /* x-dimension */
1430 *y_dimension; /* y-dimension */
1431 pwg_media_t *pwg; /* PWG media info */
1432 cups_array_t *db; /* New media database array */
1433 _cups_media_db_t mdb; /* Media entry */
1434
1435
1436 db = cupsArrayNew3((cups_array_func_t)cups_compare_media_db,
1437 NULL, NULL, 0,
1438 (cups_acopy_func_t)cups_copy_media_db,
1439 (cups_afree_func_t)cups_free_media_db);
1440
1441 if (flags == CUPS_MEDIA_FLAGS_READY)
1442 {
1443 dinfo->ready_db = db;
1444
1445 media_col_db = ippFindAttribute(dinfo->ready_attrs, "media-col-ready",
1446 IPP_TAG_BEGIN_COLLECTION);
1447 media_attr = ippFindAttribute(dinfo->ready_attrs, "media-ready",
1448 IPP_TAG_ZERO);
1449 }
1450 else
1451 {
1452 dinfo->media_db = db;
1453 dinfo->min_size.width = INT_MAX;
1454 dinfo->min_size.length = INT_MAX;
1455 dinfo->max_size.width = 0;
1456 dinfo->max_size.length = 0;
1457
1458 media_col_db = ippFindAttribute(dinfo->attrs, "media-col-database",
1459 IPP_TAG_BEGIN_COLLECTION);
1460 media_attr = ippFindAttribute(dinfo->attrs, "media-supported",
1461 IPP_TAG_ZERO);
1462 }
1463
1464 if (media_col_db)
1465 {
1466 _ipp_value_t *custom = NULL; /* Custom size range value */
1467
1468 for (i = media_col_db->num_values, val = media_col_db->values;
1469 i > 0;
1470 i --, val ++)
1471 {
1472 memset(&mdb, 0, sizeof(mdb));
1473
1474 if ((media_attr = ippFindAttribute(val->collection, "media-size",
1475 IPP_TAG_BEGIN_COLLECTION)) != NULL)
1476 {
1477 ipp_t *media_size = media_attr->values[0].collection;
1478 /* media-size collection value */
1479
1480 if ((x_dimension = ippFindAttribute(media_size, "x-dimension",
1481 IPP_TAG_INTEGER)) != NULL &&
1482 (y_dimension = ippFindAttribute(media_size, "y-dimension",
1483 IPP_TAG_INTEGER)) != NULL)
1484 {
1485 /*
1486 * Fixed size...
1487 */
1488
1489 mdb.width = x_dimension->values[0].integer;
1490 mdb.length = y_dimension->values[0].integer;
1491 }
1492 else if ((x_dimension = ippFindAttribute(media_size, "x-dimension",
1493 IPP_TAG_INTEGER)) != NULL &&
1494 (y_dimension = ippFindAttribute(media_size, "y-dimension",
1495 IPP_TAG_RANGE)) != NULL)
1496 {
1497 /*
1498 * Roll limits...
1499 */
1500
1501 mdb.width = x_dimension->values[0].integer;
1502 mdb.length = y_dimension->values[0].range.upper;
1503 }
1504 else if (flags != CUPS_MEDIA_FLAGS_READY &&
1505 (x_dimension = ippFindAttribute(media_size, "x-dimension",
1506 IPP_TAG_RANGE)) != NULL &&
1507 (y_dimension = ippFindAttribute(media_size, "y-dimension",
1508 IPP_TAG_RANGE)) != NULL)
1509 {
1510 /*
1511 * Custom size range; save this as the custom size value with default
1512 * margins, then continue; we'll capture the real margins below...
1513 */
1514
1515 custom = val;
1516
1517 dinfo->min_size.width = x_dimension->values[0].range.lower;
1518 dinfo->min_size.length = y_dimension->values[0].range.lower;
1519 dinfo->min_size.left =
1520 dinfo->min_size.right = 635; /* Default 1/4" side margins */
1521 dinfo->min_size.top =
1522 dinfo->min_size.bottom = 1270; /* Default 1/2" top/bottom margins */
1523
1524 dinfo->max_size.width = x_dimension->values[0].range.upper;
1525 dinfo->max_size.length = y_dimension->values[0].range.upper;
1526 dinfo->max_size.left =
1527 dinfo->max_size.right = 635; /* Default 1/4" side margins */
1528 dinfo->max_size.top =
1529 dinfo->max_size.bottom = 1270; /* Default 1/2" top/bottom margins */
1530 continue;
1531 }
1532 }
1533
1534 if ((media_attr = ippFindAttribute(val->collection, "media-color",
1535 IPP_TAG_ZERO)) != NULL &&
1536 (media_attr->value_tag == IPP_TAG_NAME ||
1537 media_attr->value_tag == IPP_TAG_NAMELANG ||
1538 media_attr->value_tag == IPP_TAG_KEYWORD))
1539 mdb.color = media_attr->values[0].string.text;
1540
1541 if ((media_attr = ippFindAttribute(val->collection, "media-info",
1542 IPP_TAG_TEXT)) != NULL)
1543 mdb.info = media_attr->values[0].string.text;
1544
1545 if ((media_attr = ippFindAttribute(val->collection, "media-key",
1546 IPP_TAG_ZERO)) != NULL &&
1547 (media_attr->value_tag == IPP_TAG_NAME ||
1548 media_attr->value_tag == IPP_TAG_NAMELANG ||
1549 media_attr->value_tag == IPP_TAG_KEYWORD))
1550 mdb.key = media_attr->values[0].string.text;
1551
1552 if ((media_attr = ippFindAttribute(val->collection, "media-size-name",
1553 IPP_TAG_ZERO)) != NULL &&
1554 (media_attr->value_tag == IPP_TAG_NAME ||
1555 media_attr->value_tag == IPP_TAG_NAMELANG ||
1556 media_attr->value_tag == IPP_TAG_KEYWORD))
1557 mdb.size_name = media_attr->values[0].string.text;
1558
1559 if ((media_attr = ippFindAttribute(val->collection, "media-source",
1560 IPP_TAG_ZERO)) != NULL &&
1561 (media_attr->value_tag == IPP_TAG_NAME ||
1562 media_attr->value_tag == IPP_TAG_NAMELANG ||
1563 media_attr->value_tag == IPP_TAG_KEYWORD))
1564 mdb.source = media_attr->values[0].string.text;
1565
1566 if ((media_attr = ippFindAttribute(val->collection, "media-type",
1567 IPP_TAG_ZERO)) != NULL &&
1568 (media_attr->value_tag == IPP_TAG_NAME ||
1569 media_attr->value_tag == IPP_TAG_NAMELANG ||
1570 media_attr->value_tag == IPP_TAG_KEYWORD))
1571 mdb.type = media_attr->values[0].string.text;
1572
1573 if ((media_attr = ippFindAttribute(val->collection, "media-bottom-margin",
1574 IPP_TAG_INTEGER)) != NULL)
1575 mdb.bottom = media_attr->values[0].integer;
1576
1577 if ((media_attr = ippFindAttribute(val->collection, "media-left-margin",
1578 IPP_TAG_INTEGER)) != NULL)
1579 mdb.left = media_attr->values[0].integer;
1580
1581 if ((media_attr = ippFindAttribute(val->collection, "media-right-margin",
1582 IPP_TAG_INTEGER)) != NULL)
1583 mdb.right = media_attr->values[0].integer;
1584
1585 if ((media_attr = ippFindAttribute(val->collection, "media-top-margin",
1586 IPP_TAG_INTEGER)) != NULL)
1587 mdb.top = media_attr->values[0].integer;
1588
1589 cupsArrayAdd(db, &mdb);
1590 }
1591
1592 if (custom)
1593 {
1594 if ((media_attr = ippFindAttribute(custom->collection,
1595 "media-bottom-margin",
1596 IPP_TAG_INTEGER)) != NULL)
1597 {
1598 dinfo->min_size.top =
1599 dinfo->max_size.top = media_attr->values[0].integer;
1600 }
1601
1602 if ((media_attr = ippFindAttribute(custom->collection,
1603 "media-left-margin",
1604 IPP_TAG_INTEGER)) != NULL)
1605 {
1606 dinfo->min_size.left =
1607 dinfo->max_size.left = media_attr->values[0].integer;
1608 }
1609
1610 if ((media_attr = ippFindAttribute(custom->collection,
1611 "media-right-margin",
1612 IPP_TAG_INTEGER)) != NULL)
1613 {
1614 dinfo->min_size.right =
1615 dinfo->max_size.right = media_attr->values[0].integer;
1616 }
1617
1618 if ((media_attr = ippFindAttribute(custom->collection,
1619 "media-top-margin",
1620 IPP_TAG_INTEGER)) != NULL)
1621 {
1622 dinfo->min_size.top =
1623 dinfo->max_size.top = media_attr->values[0].integer;
1624 }
1625 }
1626 }
1627 else if (media_attr &&
1628 (media_attr->value_tag == IPP_TAG_NAME ||
1629 media_attr->value_tag == IPP_TAG_NAMELANG ||
1630 media_attr->value_tag == IPP_TAG_KEYWORD))
1631 {
1632 memset(&mdb, 0, sizeof(mdb));
1633
1634 mdb.left =
1635 mdb.right = 635; /* Default 1/4" side margins */
1636 mdb.top =
1637 mdb.bottom = 1270; /* Default 1/2" top/bottom margins */
1638
1639 for (i = media_attr->num_values, val = media_attr->values;
1640 i > 0;
1641 i --, val ++)
1642 {
1643 if ((pwg = pwgMediaForPWG(val->string.text)) == NULL)
1644 if ((pwg = pwgMediaForLegacy(val->string.text)) == NULL)
1645 {
1646 DEBUG_printf(("3cups_create_media_db: Ignoring unknown size '%s'.",
1647 val->string.text));
1648 continue;
1649 }
1650
1651 mdb.width = pwg->width;
1652 mdb.length = pwg->length;
1653
1654 if (flags != CUPS_MEDIA_FLAGS_READY &&
1655 !strncmp(val->string.text, "custom_min_", 11))
1656 {
1657 mdb.size_name = NULL;
1658 dinfo->min_size = mdb;
1659 }
1660 else if (flags != CUPS_MEDIA_FLAGS_READY &&
1661 !strncmp(val->string.text, "custom_max_", 11))
1662 {
1663 mdb.size_name = NULL;
1664 dinfo->max_size = mdb;
1665 }
1666 else
1667 {
1668 mdb.size_name = val->string.text;
1669
1670 cupsArrayAdd(db, &mdb);
1671 }
1672 }
1673 }
1674 }
1675
1676
1677 /*
1678 * 'cups_free_media_cb()' - Free a media entry.
1679 */
1680
1681 static void
1682 cups_free_media_db(
1683 _cups_media_db_t *mdb) /* I - Media entry to free */
1684 {
1685 if (mdb->color)
1686 _cupsStrFree(mdb->color);
1687 if (mdb->key)
1688 _cupsStrFree(mdb->key);
1689 if (mdb->info)
1690 _cupsStrFree(mdb->info);
1691 if (mdb->size_name)
1692 _cupsStrFree(mdb->size_name);
1693 if (mdb->source)
1694 _cupsStrFree(mdb->source);
1695 if (mdb->type)
1696 _cupsStrFree(mdb->type);
1697
1698 free(mdb);
1699 }
1700
1701
1702 /*
1703 * 'cups_get_media_db()' - Lookup the media entry for a given size.
1704 */
1705
1706 static int /* O - 1 on match, 0 on failure */
1707 cups_get_media_db(http_t *http, /* I - Connection to destination */
1708 cups_dinfo_t *dinfo, /* I - Destination information */
1709 pwg_media_t *pwg, /* I - PWG media info */
1710 unsigned flags, /* I - Media matching flags */
1711 cups_size_t *size) /* O - Media size/margin/name info */
1712 {
1713 cups_array_t *db; /* Which media database to query */
1714 _cups_media_db_t *mdb, /* Current media database entry */
1715 *best = NULL, /* Best matching entry */
1716 key; /* Search key */
1717
1718
1719 /*
1720 * Create the media database as needed...
1721 */
1722
1723 if (flags & CUPS_MEDIA_FLAGS_READY)
1724 {
1725 cups_update_ready(http, dinfo);
1726 db = dinfo->ready_db;
1727 }
1728 else
1729 {
1730 if (!dinfo->media_db)
1731 cups_create_media_db(dinfo, CUPS_MEDIA_FLAGS_DEFAULT);
1732
1733 db = dinfo->media_db;
1734 }
1735
1736 /*
1737 * Find a match...
1738 */
1739
1740 memset(&key, 0, sizeof(key));
1741 key.width = pwg->width;
1742 key.length = pwg->length;
1743
1744 if ((mdb = cupsArrayFind(db, &key)) != NULL)
1745 {
1746 /*
1747 * Found an exact match, let's figure out the best margins for the flags
1748 * supplied...
1749 */
1750
1751 best = mdb;
1752
1753 if (flags & CUPS_MEDIA_FLAGS_BORDERLESS)
1754 {
1755 /*
1756 * Look for the smallest margins...
1757 */
1758
1759 if (best->left != 0 || best->right != 0 || best->top != 0 || best->bottom != 0)
1760 {
1761 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1762 mdb && !cups_compare_media_db(mdb, &key);
1763 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1764 {
1765 if (mdb->left <= best->left && mdb->right <= best->right &&
1766 mdb->top <= best->top && mdb->bottom <= best->bottom)
1767 {
1768 best = mdb;
1769 if (mdb->left == 0 && mdb->right == 0 && mdb->bottom == 0 &&
1770 mdb->top == 0)
1771 break;
1772 }
1773 }
1774 }
1775
1776 /*
1777 * If we need an exact match, return no-match if the size is not
1778 * borderless.
1779 */
1780
1781 if ((flags & CUPS_MEDIA_FLAGS_EXACT) &&
1782 (best->left || best->right || best->top || best->bottom))
1783 return (0);
1784 }
1785 else if (flags & CUPS_MEDIA_FLAGS_DUPLEX)
1786 {
1787 /*
1788 * Look for the largest margins...
1789 */
1790
1791 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1792 mdb && !cups_compare_media_db(mdb, &key);
1793 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1794 {
1795 if (mdb->left >= best->left && mdb->right >= best->right &&
1796 mdb->top >= best->top && mdb->bottom >= best->bottom &&
1797 (mdb->bottom != best->bottom || mdb->left != best->left || mdb->right != best->right || mdb->top != best->top))
1798 best = mdb;
1799 }
1800 }
1801 else
1802 {
1803 /*
1804 * Look for the smallest non-zero margins...
1805 */
1806
1807 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1808 mdb && !cups_compare_media_db(mdb, &key);
1809 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1810 {
1811 if (((mdb->left > 0 && mdb->left <= best->left) || best->left == 0) &&
1812 ((mdb->right > 0 && mdb->right <= best->right) || best->right == 0) &&
1813 ((mdb->top > 0 && mdb->top <= best->top) || best->top == 0) &&
1814 ((mdb->bottom > 0 && mdb->bottom <= best->bottom) || best->bottom == 0) &&
1815 (mdb->bottom != best->bottom || mdb->left != best->left || mdb->right != best->right || mdb->top != best->top))
1816 best = mdb;
1817 }
1818 }
1819 }
1820 else if (flags & CUPS_MEDIA_FLAGS_EXACT)
1821 {
1822 /*
1823 * See if we can do this as a custom size...
1824 */
1825
1826 if (pwg->width < dinfo->min_size.width ||
1827 pwg->width > dinfo->max_size.width ||
1828 pwg->length < dinfo->min_size.length ||
1829 pwg->length > dinfo->max_size.length)
1830 return (0); /* Out of range */
1831
1832 if ((flags & CUPS_MEDIA_FLAGS_BORDERLESS) &&
1833 (dinfo->min_size.left > 0 || dinfo->min_size.right > 0 ||
1834 dinfo->min_size.top > 0 || dinfo->min_size.bottom > 0))
1835 return (0); /* Not borderless */
1836
1837 key.size_name = (char *)pwg->pwg;
1838 key.bottom = dinfo->min_size.bottom;
1839 key.left = dinfo->min_size.left;
1840 key.right = dinfo->min_size.right;
1841 key.top = dinfo->min_size.top;
1842
1843 best = &key;
1844 }
1845 else if (pwg->width >= dinfo->min_size.width &&
1846 pwg->width <= dinfo->max_size.width &&
1847 pwg->length >= dinfo->min_size.length &&
1848 pwg->length <= dinfo->max_size.length)
1849 {
1850 /*
1851 * Map to custom size...
1852 */
1853
1854 key.size_name = (char *)pwg->pwg;
1855 key.bottom = dinfo->min_size.bottom;
1856 key.left = dinfo->min_size.left;
1857 key.right = dinfo->min_size.right;
1858 key.top = dinfo->min_size.top;
1859
1860 best = &key;
1861 }
1862 else
1863 {
1864 /*
1865 * Find a close size...
1866 */
1867
1868 for (mdb = (_cups_media_db_t *)cupsArrayFirst(db);
1869 mdb;
1870 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1871 if (cups_is_close_media_db(mdb, &key))
1872 break;
1873
1874 if (!mdb)
1875 return (0);
1876
1877 best = mdb;
1878
1879 if (flags & CUPS_MEDIA_FLAGS_BORDERLESS)
1880 {
1881 /*
1882 * Look for the smallest margins...
1883 */
1884
1885 if (best->left != 0 || best->right != 0 || best->top != 0 ||
1886 best->bottom != 0)
1887 {
1888 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1889 mdb && cups_is_close_media_db(mdb, &key);
1890 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1891 {
1892 if (mdb->left <= best->left && mdb->right <= best->right &&
1893 mdb->top <= best->top && mdb->bottom <= best->bottom &&
1894 (mdb->bottom != best->bottom || mdb->left != best->left || mdb->right != best->right || mdb->top != best->top))
1895 {
1896 best = mdb;
1897 if (mdb->left == 0 && mdb->right == 0 && mdb->bottom == 0 &&
1898 mdb->top == 0)
1899 break;
1900 }
1901 }
1902 }
1903 }
1904 else if (flags & CUPS_MEDIA_FLAGS_DUPLEX)
1905 {
1906 /*
1907 * Look for the largest margins...
1908 */
1909
1910 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1911 mdb && cups_is_close_media_db(mdb, &key);
1912 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1913 {
1914 if (mdb->left >= best->left && mdb->right >= best->right &&
1915 mdb->top >= best->top && mdb->bottom >= best->bottom &&
1916 (mdb->bottom != best->bottom || mdb->left != best->left || mdb->right != best->right || mdb->top != best->top))
1917 best = mdb;
1918 }
1919 }
1920 else
1921 {
1922 /*
1923 * Look for the smallest non-zero margins...
1924 */
1925
1926 for (mdb = (_cups_media_db_t *)cupsArrayNext(db);
1927 mdb && cups_is_close_media_db(mdb, &key);
1928 mdb = (_cups_media_db_t *)cupsArrayNext(db))
1929 {
1930 if (((mdb->left > 0 && mdb->left <= best->left) || best->left == 0) &&
1931 ((mdb->right > 0 && mdb->right <= best->right) ||
1932 best->right == 0) &&
1933 ((mdb->top > 0 && mdb->top <= best->top) || best->top == 0) &&
1934 ((mdb->bottom > 0 && mdb->bottom <= best->bottom) ||
1935 best->bottom == 0) &&
1936 (mdb->bottom != best->bottom || mdb->left != best->left || mdb->right != best->right || mdb->top != best->top))
1937 best = mdb;
1938 }
1939 }
1940 }
1941
1942 if (best)
1943 {
1944 /*
1945 * Return the matching size...
1946 */
1947
1948 if (best->size_name)
1949 strlcpy(size->media, best->size_name, sizeof(size->media));
1950 else if (best->key)
1951 strlcpy(size->media, best->key, sizeof(size->media));
1952 else
1953 strlcpy(size->media, pwg->pwg, sizeof(size->media));
1954
1955 size->width = best->width;
1956 size->length = best->length;
1957 size->bottom = best->bottom;
1958 size->left = best->left;
1959 size->right = best->right;
1960 size->top = best->top;
1961
1962 return (1);
1963 }
1964
1965 return (0);
1966 }
1967
1968
1969 /*
1970 * 'cups_is_close_media_db()' - Compare two media entries to see if they are
1971 * close to the same size.
1972 *
1973 * Currently we use 5 points (from PostScript) as the matching range...
1974 */
1975
1976 static int /* O - 1 if the sizes are close */
1977 cups_is_close_media_db(
1978 _cups_media_db_t *a, /* I - First media entries */
1979 _cups_media_db_t *b) /* I - Second media entries */
1980 {
1981 int dwidth, /* Difference in width */
1982 dlength; /* Difference in length */
1983
1984
1985 dwidth = a->width - b->width;
1986 dlength = a->length - b->length;
1987
1988 return (dwidth >= -176 && dwidth <= 176 &&
1989 dlength >= -176 && dlength <= 176);
1990 }
1991
1992
1993 /*
1994 * 'cups_test_constraints()' - Test constraints.
1995 *
1996 * TODO: STR #4096 - Need to properly support media-col contraints...
1997 */
1998
1999 static cups_array_t * /* O - Active constraints */
2000 cups_test_constraints(
2001 cups_dinfo_t *dinfo, /* I - Destination information */
2002 const char *new_option, /* I - Newly selected option */
2003 const char *new_value, /* I - Newly selected value */
2004 int num_options, /* I - Number of options */
2005 cups_option_t *options, /* I - Options */
2006 int *num_conflicts, /* O - Number of conflicting options */
2007 cups_option_t **conflicts) /* O - Conflicting options */
2008 {
2009 int i, /* Looping var */
2010 match; /* Value matches? */
2011 int num_matching; /* Number of matching options */
2012 cups_option_t *matching; /* Matching options */
2013 _cups_dconstres_t *c; /* Current constraint */
2014 cups_array_t *active = NULL; /* Active constraints */
2015 ipp_attribute_t *attr; /* Current attribute */
2016 _ipp_value_t *attrval; /* Current attribute value */
2017 const char *value; /* Current value */
2018 char temp[1024]; /* Temporary string */
2019 int int_value; /* Integer value */
2020 int xres_value, /* Horizontal resolution */
2021 yres_value; /* Vertical resolution */
2022 ipp_res_t units_value; /* Resolution units */
2023
2024
2025 for (c = (_cups_dconstres_t *)cupsArrayFirst(dinfo->constraints);
2026 c;
2027 c = (_cups_dconstres_t *)cupsArrayNext(dinfo->constraints))
2028 {
2029 num_matching = 0;
2030 matching = NULL;
2031
2032 for (attr = ippFirstAttribute(c->collection);
2033 attr;
2034 attr = ippNextAttribute(c->collection))
2035 {
2036 if (attr->value_tag == IPP_TAG_BEGIN_COLLECTION)
2037 break; /* TODO: STR #4096 */
2038
2039 /*
2040 * Get the value for the current attribute in the constraint...
2041 */
2042
2043 if (new_option && new_value && !strcmp(attr->name, new_option))
2044 value = new_value;
2045 else if ((value = cupsGetOption(attr->name, num_options,
2046 options)) == NULL)
2047 value = cupsGetOption(attr->name, dinfo->num_defaults, dinfo->defaults);
2048
2049 if (!value)
2050 {
2051 /*
2052 * Not set so this constraint does not apply...
2053 */
2054
2055 break;
2056 }
2057
2058 match = 0;
2059
2060 switch (attr->value_tag)
2061 {
2062 case IPP_TAG_INTEGER :
2063 case IPP_TAG_ENUM :
2064 int_value = atoi(value);
2065
2066 for (i = attr->num_values, attrval = attr->values;
2067 i > 0;
2068 i --, attrval ++)
2069 {
2070 if (attrval->integer == int_value)
2071 {
2072 match = 1;
2073 break;
2074 }
2075 }
2076 break;
2077
2078 case IPP_TAG_BOOLEAN :
2079 int_value = !strcmp(value, "true");
2080
2081 for (i = attr->num_values, attrval = attr->values;
2082 i > 0;
2083 i --, attrval ++)
2084 {
2085 if (attrval->boolean == int_value)
2086 {
2087 match = 1;
2088 break;
2089 }
2090 }
2091 break;
2092
2093 case IPP_TAG_RANGE :
2094 int_value = atoi(value);
2095
2096 for (i = attr->num_values, attrval = attr->values;
2097 i > 0;
2098 i --, attrval ++)
2099 {
2100 if (int_value >= attrval->range.lower &&
2101 int_value <= attrval->range.upper)
2102 {
2103 match = 1;
2104 break;
2105 }
2106 }
2107 break;
2108
2109 case IPP_TAG_RESOLUTION :
2110 if (sscanf(value, "%dx%d%15s", &xres_value, &yres_value, temp) != 3)
2111 {
2112 if (sscanf(value, "%d%15s", &xres_value, temp) != 2)
2113 break;
2114
2115 yres_value = xres_value;
2116 }
2117
2118 if (!strcmp(temp, "dpi"))
2119 units_value = IPP_RES_PER_INCH;
2120 else if (!strcmp(temp, "dpc") || !strcmp(temp, "dpcm"))
2121 units_value = IPP_RES_PER_CM;
2122 else
2123 break;
2124
2125 for (i = attr->num_values, attrval = attr->values;
2126 i > 0;
2127 i --, attrval ++)
2128 {
2129 if (attrval->resolution.xres == xres_value &&
2130 attrval->resolution.yres == yres_value &&
2131 attrval->resolution.units == units_value)
2132 {
2133 match = 1;
2134 break;
2135 }
2136 }
2137 break;
2138
2139 case IPP_TAG_TEXT :
2140 case IPP_TAG_NAME :
2141 case IPP_TAG_KEYWORD :
2142 case IPP_TAG_CHARSET :
2143 case IPP_TAG_URI :
2144 case IPP_TAG_URISCHEME :
2145 case IPP_TAG_MIMETYPE :
2146 case IPP_TAG_LANGUAGE :
2147 case IPP_TAG_TEXTLANG :
2148 case IPP_TAG_NAMELANG :
2149 for (i = attr->num_values, attrval = attr->values;
2150 i > 0;
2151 i --, attrval ++)
2152 {
2153 if (!strcmp(attrval->string.text, value))
2154 {
2155 match = 1;
2156 break;
2157 }
2158 }
2159 break;
2160
2161 default :
2162 break;
2163 }
2164
2165 if (!match)
2166 break;
2167
2168 num_matching = cupsAddOption(attr->name, value, num_matching, &matching);
2169 }
2170
2171 if (!attr)
2172 {
2173 if (!active)
2174 active = cupsArrayNew(NULL, NULL);
2175
2176 cupsArrayAdd(active, c);
2177
2178 if (num_conflicts && conflicts)
2179 {
2180 cups_option_t *moption; /* Matching option */
2181
2182 for (i = num_matching, moption = matching; i > 0; i --, moption ++)
2183 *num_conflicts = cupsAddOption(moption->name, moption->value,
2184 *num_conflicts, conflicts);
2185 }
2186 }
2187
2188 cupsFreeOptions(num_matching, matching);
2189 }
2190
2191 return (active);
2192 }
2193
2194
2195 /*
2196 * 'cups_update_ready()' - Update xxx-ready attributes for the printer.
2197 */
2198
2199 static void
2200 cups_update_ready(http_t *http, /* I - Connection to destination */
2201 cups_dinfo_t *dinfo) /* I - Destination information */
2202 {
2203 ipp_t *request; /* Get-Printer-Attributes request */
2204 static const char * const pattrs[] = /* Printer attributes we want */
2205 {
2206 "finishings-col-ready",
2207 "finishings-ready",
2208 "job-finishings-col-ready",
2209 "job-finishings-ready",
2210 "media-col-ready",
2211 "media-ready"
2212 };
2213
2214
2215 /*
2216 * Don't update more than once every 30 seconds...
2217 */
2218
2219 if ((time(NULL) - dinfo->ready_time) < _CUPS_MEDIA_READY_TTL)
2220 return;
2221
2222 /*
2223 * Free any previous results...
2224 */
2225
2226 if (dinfo->cached_flags & CUPS_MEDIA_FLAGS_READY)
2227 {
2228 cupsArrayDelete(dinfo->cached_db);
2229 dinfo->cached_db = NULL;
2230 dinfo->cached_flags = CUPS_MEDIA_FLAGS_DEFAULT;
2231 }
2232
2233 ippDelete(dinfo->ready_attrs);
2234 dinfo->ready_attrs = NULL;
2235
2236 cupsArrayDelete(dinfo->ready_db);
2237 dinfo->ready_db = NULL;
2238
2239 /*
2240 * Query the xxx-ready values...
2241 */
2242
2243 request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
2244 ippSetVersion(request, dinfo->version / 10, dinfo->version % 10);
2245
2246 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL,
2247 dinfo->uri);
2248 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
2249 NULL, cupsUser());
2250 ippAddStrings(request, IPP_TAG_OPERATION, IPP_CONST_TAG(IPP_TAG_KEYWORD), "requested-attributes", (int)(sizeof(pattrs) / sizeof(pattrs[0])), NULL, pattrs);
2251
2252 dinfo->ready_attrs = cupsDoRequest(http, request, dinfo->resource);
2253
2254 /*
2255 * Update the ready media database...
2256 */
2257
2258 cups_create_media_db(dinfo, CUPS_MEDIA_FLAGS_READY);
2259
2260 /*
2261 * Update last lookup time and return...
2262 */
2263
2264 dinfo->ready_time = time(NULL);
2265 }
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