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Merge pull request #5621 from zdohnal/cgigetarray-sigsegv
[thirdparty/cups.git] / cups / ipp.c
1 /*
2 * Internet Printing Protocol functions for CUPS.
3 *
4 * Copyright © 2007-2019 by Apple Inc.
5 * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
6 *
7 * Licensed under Apache License v2.0. See the file "LICENSE" for more
8 * information.
9 */
10
11 /*
12 * Include necessary headers...
13 */
14
15 #include "cups-private.h"
16 #include "debug-internal.h"
17 #include <regex.h>
18 #ifdef _WIN32
19 # include <io.h>
20 #endif /* _WIN32 */
21
22
23 /*
24 * Local functions...
25 */
26
27 static ipp_attribute_t *ipp_add_attr(ipp_t *ipp, const char *name,
28 ipp_tag_t group_tag, ipp_tag_t value_tag,
29 int num_values);
30 static void ipp_free_values(ipp_attribute_t *attr, int element,
31 int count);
32 static char *ipp_get_code(const char *locale, char *buffer, size_t bufsize) _CUPS_NONNULL(1,2);
33 static char *ipp_lang_code(const char *locale, char *buffer, size_t bufsize) _CUPS_NONNULL(1,2);
34 static size_t ipp_length(ipp_t *ipp, int collection);
35 static ssize_t ipp_read_http(http_t *http, ipp_uchar_t *buffer,
36 size_t length);
37 static ssize_t ipp_read_file(int *fd, ipp_uchar_t *buffer,
38 size_t length);
39 static void ipp_set_error(ipp_status_t status, const char *format,
40 ...);
41 static _ipp_value_t *ipp_set_value(ipp_t *ipp, ipp_attribute_t **attr,
42 int element);
43 static ssize_t ipp_write_file(int *fd, ipp_uchar_t *buffer,
44 size_t length);
45
46
47 /*
48 * '_cupsBufferGet()' - Get a read/write buffer.
49 */
50
51 char * /* O - Buffer */
52 _cupsBufferGet(size_t size) /* I - Size required */
53 {
54 _cups_buffer_t *buffer; /* Current buffer */
55 _cups_globals_t *cg = _cupsGlobals();
56 /* Global data */
57
58
59 for (buffer = cg->cups_buffers; buffer; buffer = buffer->next)
60 if (!buffer->used && buffer->size >= size)
61 break;
62
63 if (!buffer)
64 {
65 if ((buffer = malloc(sizeof(_cups_buffer_t) + size - 1)) == NULL)
66 return (NULL);
67
68 buffer->next = cg->cups_buffers;
69 buffer->size = size;
70 cg->cups_buffers = buffer;
71 }
72
73 buffer->used = 1;
74
75 return (buffer->d);
76 }
77
78
79 /*
80 * '_cupsBufferRelease()' - Release a read/write buffer.
81 */
82
83 void
84 _cupsBufferRelease(char *b) /* I - Buffer to release */
85 {
86 _cups_buffer_t *buffer; /* Buffer */
87
88
89 /*
90 * Mark this buffer as unused...
91 */
92
93 buffer = (_cups_buffer_t *)(b - offsetof(_cups_buffer_t, d));
94 buffer->used = 0;
95 }
96
97
98 /*
99 * 'ippAddBoolean()' - Add a boolean attribute to an IPP message.
100 *
101 * The @code ipp@ parameter refers to an IPP message previously created using
102 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
103 *
104 * The @code group@ parameter specifies the IPP attribute group tag: none
105 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
106 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
107 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
108 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
109 */
110
111 ipp_attribute_t * /* O - New attribute */
112 ippAddBoolean(ipp_t *ipp, /* I - IPP message */
113 ipp_tag_t group, /* I - IPP group */
114 const char *name, /* I - Name of attribute */
115 char value) /* I - Value of attribute */
116 {
117 ipp_attribute_t *attr; /* New attribute */
118
119
120 DEBUG_printf(("ippAddBoolean(ipp=%p, group=%02x(%s), name=\"%s\", value=%d)", (void *)ipp, group, ippTagString(group), name, value));
121
122 /*
123 * Range check input...
124 */
125
126 if (!ipp || !name || group < IPP_TAG_ZERO ||
127 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
128 return (NULL);
129
130 /*
131 * Create the attribute...
132 */
133
134 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BOOLEAN, 1)) == NULL)
135 return (NULL);
136
137 attr->values[0].boolean = value;
138
139 return (attr);
140 }
141
142
143 /*
144 * 'ippAddBooleans()' - Add an array of boolean values.
145 *
146 * The @code ipp@ parameter refers to an IPP message previously created using
147 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
148 *
149 * The @code group@ parameter specifies the IPP attribute group tag: none
150 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
151 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
152 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
153 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
154 */
155
156 ipp_attribute_t * /* O - New attribute */
157 ippAddBooleans(ipp_t *ipp, /* I - IPP message */
158 ipp_tag_t group, /* I - IPP group */
159 const char *name, /* I - Name of attribute */
160 int num_values, /* I - Number of values */
161 const char *values) /* I - Values */
162 {
163 int i; /* Looping var */
164 ipp_attribute_t *attr; /* New attribute */
165 _ipp_value_t *value; /* Current value */
166
167
168 DEBUG_printf(("ippAddBooleans(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)values));
169
170 /*
171 * Range check input...
172 */
173
174 if (!ipp || !name || group < IPP_TAG_ZERO ||
175 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
176 num_values < 1)
177 return (NULL);
178
179 /*
180 * Create the attribute...
181 */
182
183 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BOOLEAN, num_values)) == NULL)
184 return (NULL);
185
186 if (values)
187 {
188 for (i = num_values, value = attr->values;
189 i > 0;
190 i --, value ++)
191 value->boolean = *values++;
192 }
193
194 return (attr);
195 }
196
197
198 /*
199 * 'ippAddCollection()' - Add a collection value.
200 *
201 * The @code ipp@ parameter refers to an IPP message previously created using
202 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
203 *
204 * The @code group@ parameter specifies the IPP attribute group tag: none
205 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
206 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
207 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
208 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
209 *
210 * @since CUPS 1.1.19/macOS 10.3@
211 */
212
213 ipp_attribute_t * /* O - New attribute */
214 ippAddCollection(ipp_t *ipp, /* I - IPP message */
215 ipp_tag_t group, /* I - IPP group */
216 const char *name, /* I - Name of attribute */
217 ipp_t *value) /* I - Value */
218 {
219 ipp_attribute_t *attr; /* New attribute */
220
221
222 DEBUG_printf(("ippAddCollection(ipp=%p, group=%02x(%s), name=\"%s\", value=%p)", (void *)ipp, group, ippTagString(group), name, (void *)value));
223
224 /*
225 * Range check input...
226 */
227
228 if (!ipp || !name || group < IPP_TAG_ZERO ||
229 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
230 return (NULL);
231
232 /*
233 * Create the attribute...
234 */
235
236 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BEGIN_COLLECTION, 1)) == NULL)
237 return (NULL);
238
239 attr->values[0].collection = value;
240
241 if (value)
242 value->use ++;
243
244 return (attr);
245 }
246
247
248 /*
249 * 'ippAddCollections()' - Add an array of collection values.
250 *
251 * The @code ipp@ parameter refers to an IPP message previously created using
252 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
253 *
254 * The @code group@ parameter specifies the IPP attribute group tag: none
255 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
256 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
257 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
258 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
259 *
260 * @since CUPS 1.1.19/macOS 10.3@
261 */
262
263 ipp_attribute_t * /* O - New attribute */
264 ippAddCollections(
265 ipp_t *ipp, /* I - IPP message */
266 ipp_tag_t group, /* I - IPP group */
267 const char *name, /* I - Name of attribute */
268 int num_values, /* I - Number of values */
269 const ipp_t **values) /* I - Values */
270 {
271 int i; /* Looping var */
272 ipp_attribute_t *attr; /* New attribute */
273 _ipp_value_t *value; /* Current value */
274
275
276 DEBUG_printf(("ippAddCollections(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)values));
277
278 /*
279 * Range check input...
280 */
281
282 if (!ipp || !name || group < IPP_TAG_ZERO ||
283 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
284 num_values < 1)
285 return (NULL);
286
287 /*
288 * Create the attribute...
289 */
290
291 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BEGIN_COLLECTION,
292 num_values)) == NULL)
293 return (NULL);
294
295 if (values)
296 {
297 for (i = num_values, value = attr->values;
298 i > 0;
299 i --, value ++)
300 {
301 value->collection = (ipp_t *)*values++;
302 value->collection->use ++;
303 }
304 }
305
306 return (attr);
307 }
308
309
310 /*
311 * 'ippAddDate()' - Add a dateTime attribute to an IPP message.
312 *
313 * The @code ipp@ parameter refers to an IPP message previously created using
314 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
315 *
316 * The @code group@ parameter specifies the IPP attribute group tag: none
317 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
318 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
319 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
320 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
321 */
322
323 ipp_attribute_t * /* O - New attribute */
324 ippAddDate(ipp_t *ipp, /* I - IPP message */
325 ipp_tag_t group, /* I - IPP group */
326 const char *name, /* I - Name of attribute */
327 const ipp_uchar_t *value) /* I - Value */
328 {
329 ipp_attribute_t *attr; /* New attribute */
330
331
332 DEBUG_printf(("ippAddDate(ipp=%p, group=%02x(%s), name=\"%s\", value=%p)", (void *)ipp, group, ippTagString(group), name, (void *)value));
333
334 /*
335 * Range check input...
336 */
337
338 if (!ipp || !name || !value || group < IPP_TAG_ZERO ||
339 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
340 return (NULL);
341
342 /*
343 * Create the attribute...
344 */
345
346 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_DATE, 1)) == NULL)
347 return (NULL);
348
349 memcpy(attr->values[0].date, value, 11);
350
351 return (attr);
352 }
353
354
355 /*
356 * 'ippAddInteger()' - Add a integer attribute to an IPP message.
357 *
358 * The @code ipp@ parameter refers to an IPP message previously created using
359 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
360 *
361 * The @code group@ parameter specifies the IPP attribute group tag: none
362 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
363 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
364 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
365 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
366 *
367 * Supported values include enum (@code IPP_TAG_ENUM@) and integer
368 * (@code IPP_TAG_INTEGER@).
369 */
370
371 ipp_attribute_t * /* O - New attribute */
372 ippAddInteger(ipp_t *ipp, /* I - IPP message */
373 ipp_tag_t group, /* I - IPP group */
374 ipp_tag_t value_tag, /* I - Type of attribute */
375 const char *name, /* I - Name of attribute */
376 int value) /* I - Value of attribute */
377 {
378 ipp_attribute_t *attr; /* New attribute */
379
380
381 DEBUG_printf(("ippAddInteger(ipp=%p, group=%02x(%s), type=%02x(%s), name=\"%s\", value=%d)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, value));
382
383 value_tag &= IPP_TAG_CUPS_MASK;
384
385 /*
386 * Special-case for legacy usage: map out-of-band attributes to new ippAddOutOfBand
387 * function...
388 */
389
390 if (value_tag >= IPP_TAG_UNSUPPORTED_VALUE && value_tag <= IPP_TAG_ADMINDEFINE)
391 return (ippAddOutOfBand(ipp, group, value_tag, name));
392
393 /*
394 * Range check input...
395 */
396
397 #if 0
398 if (!ipp || !name || group < IPP_TAG_ZERO ||
399 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
400 (value_tag != IPP_TAG_INTEGER && value_tag != IPP_TAG_ENUM))
401 return (NULL);
402 #else
403 if (!ipp || !name || group < IPP_TAG_ZERO ||
404 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
405 return (NULL);
406 #endif /* 0 */
407
408 /*
409 * Create the attribute...
410 */
411
412 if ((attr = ipp_add_attr(ipp, name, group, value_tag, 1)) == NULL)
413 return (NULL);
414
415 attr->values[0].integer = value;
416
417 return (attr);
418 }
419
420
421 /*
422 * 'ippAddIntegers()' - Add an array of integer values.
423 *
424 * The @code ipp@ parameter refers to an IPP message previously created using
425 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
426 *
427 * The @code group@ parameter specifies the IPP attribute group tag: none
428 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
429 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
430 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
431 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
432 *
433 * Supported values include enum (@code IPP_TAG_ENUM@) and integer
434 * (@code IPP_TAG_INTEGER@).
435 */
436
437 ipp_attribute_t * /* O - New attribute */
438 ippAddIntegers(ipp_t *ipp, /* I - IPP message */
439 ipp_tag_t group, /* I - IPP group */
440 ipp_tag_t value_tag, /* I - Type of attribute */
441 const char *name, /* I - Name of attribute */
442 int num_values, /* I - Number of values */
443 const int *values) /* I - Values */
444 {
445 int i; /* Looping var */
446 ipp_attribute_t *attr; /* New attribute */
447 _ipp_value_t *value; /* Current value */
448
449
450 DEBUG_printf(("ippAddIntegers(ipp=%p, group=%02x(%s), type=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, num_values, (void *)values));
451
452 value_tag &= IPP_TAG_CUPS_MASK;
453
454 /*
455 * Range check input...
456 */
457
458 #if 0
459 if (!ipp || !name || group < IPP_TAG_ZERO ||
460 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
461 (value_tag != IPP_TAG_INTEGER && value_tag != IPP_TAG_ENUM) ||
462 num_values < 1)
463 return (NULL);
464 #else
465 if (!ipp || !name || group < IPP_TAG_ZERO ||
466 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
467 num_values < 1)
468 return (NULL);
469 #endif /* 0 */
470
471 /*
472 * Create the attribute...
473 */
474
475 if ((attr = ipp_add_attr(ipp, name, group, value_tag, num_values)) == NULL)
476 return (NULL);
477
478 if (values)
479 {
480 for (i = num_values, value = attr->values;
481 i > 0;
482 i --, value ++)
483 value->integer = *values++;
484 }
485
486 return (attr);
487 }
488
489
490 /*
491 * 'ippAddOctetString()' - Add an octetString value to an IPP message.
492 *
493 * The @code ipp@ parameter refers to an IPP message previously created using
494 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
495 *
496 * The @code group@ parameter specifies the IPP attribute group tag: none
497 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
498 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
499 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
500 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
501 *
502 * @since CUPS 1.2/macOS 10.5@
503 */
504
505 ipp_attribute_t * /* O - New attribute */
506 ippAddOctetString(ipp_t *ipp, /* I - IPP message */
507 ipp_tag_t group, /* I - IPP group */
508 const char *name, /* I - Name of attribute */
509 const void *data, /* I - octetString data */
510 int datalen) /* I - Length of data in bytes */
511 {
512 ipp_attribute_t *attr; /* New attribute */
513
514
515 if (!ipp || !name || group < IPP_TAG_ZERO ||
516 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
517 datalen < 0 || datalen > IPP_MAX_LENGTH)
518 return (NULL);
519
520 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_STRING, 1)) == NULL)
521 return (NULL);
522
523 /*
524 * Initialize the attribute data...
525 */
526
527 attr->values[0].unknown.length = datalen;
528
529 if (data)
530 {
531 if ((attr->values[0].unknown.data = malloc((size_t)datalen)) == NULL)
532 {
533 ippDeleteAttribute(ipp, attr);
534 return (NULL);
535 }
536
537 memcpy(attr->values[0].unknown.data, data, (size_t)datalen);
538 }
539
540 /*
541 * Return the new attribute...
542 */
543
544 return (attr);
545 }
546
547
548 /*
549 * 'ippAddOutOfBand()' - Add an out-of-band value to an IPP message.
550 *
551 * The @code ipp@ parameter refers to an IPP message previously created using
552 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
553 *
554 * The @code group@ parameter specifies the IPP attribute group tag: none
555 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
556 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
557 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
558 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
559 *
560 * Supported out-of-band values include unsupported-value
561 * (@code IPP_TAG_UNSUPPORTED_VALUE@), default (@code IPP_TAG_DEFAULT@), unknown
562 * (@code IPP_TAG_UNKNOWN@), no-value (@code IPP_TAG_NOVALUE@), not-settable
563 * (@code IPP_TAG_NOTSETTABLE@), delete-attribute (@code IPP_TAG_DELETEATTR@), and
564 * admin-define (@code IPP_TAG_ADMINDEFINE@).
565 *
566 * @since CUPS 1.6/macOS 10.8@
567 */
568
569 ipp_attribute_t * /* O - New attribute */
570 ippAddOutOfBand(ipp_t *ipp, /* I - IPP message */
571 ipp_tag_t group, /* I - IPP group */
572 ipp_tag_t value_tag, /* I - Type of attribute */
573 const char *name) /* I - Name of attribute */
574 {
575 DEBUG_printf(("ippAddOutOfBand(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\")", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name));
576
577 value_tag &= IPP_TAG_CUPS_MASK;
578
579 /*
580 * Range check input...
581 */
582
583 if (!ipp || !name || group < IPP_TAG_ZERO ||
584 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
585 (value_tag != IPP_TAG_UNSUPPORTED_VALUE &&
586 value_tag != IPP_TAG_DEFAULT &&
587 value_tag != IPP_TAG_UNKNOWN &&
588 value_tag != IPP_TAG_NOVALUE &&
589 value_tag != IPP_TAG_NOTSETTABLE &&
590 value_tag != IPP_TAG_DELETEATTR &&
591 value_tag != IPP_TAG_ADMINDEFINE))
592 return (NULL);
593
594 /*
595 * Create the attribute...
596 */
597
598 return (ipp_add_attr(ipp, name, group, value_tag, 1));
599 }
600
601
602 /*
603 * 'ippAddRange()' - Add a range of values to an IPP message.
604 *
605 * The @code ipp@ parameter refers to an IPP message previously created using
606 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
607 *
608 * The @code group@ parameter specifies the IPP attribute group tag: none
609 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
610 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
611 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
612 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
613 *
614 * The @code lower@ parameter must be less than or equal to the @code upper@ parameter.
615 */
616
617 ipp_attribute_t * /* O - New attribute */
618 ippAddRange(ipp_t *ipp, /* I - IPP message */
619 ipp_tag_t group, /* I - IPP group */
620 const char *name, /* I - Name of attribute */
621 int lower, /* I - Lower value */
622 int upper) /* I - Upper value */
623 {
624 ipp_attribute_t *attr; /* New attribute */
625
626
627 DEBUG_printf(("ippAddRange(ipp=%p, group=%02x(%s), name=\"%s\", lower=%d, upper=%d)", (void *)ipp, group, ippTagString(group), name, lower, upper));
628
629 /*
630 * Range check input...
631 */
632
633 if (!ipp || !name || group < IPP_TAG_ZERO ||
634 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
635 return (NULL);
636
637 /*
638 * Create the attribute...
639 */
640
641 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RANGE, 1)) == NULL)
642 return (NULL);
643
644 attr->values[0].range.lower = lower;
645 attr->values[0].range.upper = upper;
646
647 return (attr);
648 }
649
650
651 /*
652 * 'ippAddRanges()' - Add ranges of values to an IPP message.
653 *
654 * The @code ipp@ parameter refers to an IPP message previously created using
655 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
656 *
657 * The @code group@ parameter specifies the IPP attribute group tag: none
658 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
659 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
660 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
661 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
662 */
663
664 ipp_attribute_t * /* O - New attribute */
665 ippAddRanges(ipp_t *ipp, /* I - IPP message */
666 ipp_tag_t group, /* I - IPP group */
667 const char *name, /* I - Name of attribute */
668 int num_values, /* I - Number of values */
669 const int *lower, /* I - Lower values */
670 const int *upper) /* I - Upper values */
671 {
672 int i; /* Looping var */
673 ipp_attribute_t *attr; /* New attribute */
674 _ipp_value_t *value; /* Current value */
675
676
677 DEBUG_printf(("ippAddRanges(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, lower=%p, upper=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)lower, (void *)upper));
678
679 /*
680 * Range check input...
681 */
682
683 if (!ipp || !name || group < IPP_TAG_ZERO ||
684 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
685 num_values < 1)
686 return (NULL);
687
688 /*
689 * Create the attribute...
690 */
691
692 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RANGE, num_values)) == NULL)
693 return (NULL);
694
695 if (lower && upper)
696 {
697 for (i = num_values, value = attr->values;
698 i > 0;
699 i --, value ++)
700 {
701 value->range.lower = *lower++;
702 value->range.upper = *upper++;
703 }
704 }
705
706 return (attr);
707 }
708
709
710 /*
711 * 'ippAddResolution()' - Add a resolution value to an IPP message.
712 *
713 * The @code ipp@ parameter refers to an IPP message previously created using
714 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
715 *
716 * The @code group@ parameter specifies the IPP attribute group tag: none
717 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
718 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
719 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
720 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
721 */
722
723 ipp_attribute_t * /* O - New attribute */
724 ippAddResolution(ipp_t *ipp, /* I - IPP message */
725 ipp_tag_t group, /* I - IPP group */
726 const char *name, /* I - Name of attribute */
727 ipp_res_t units, /* I - Units for resolution */
728 int xres, /* I - X resolution */
729 int yres) /* I - Y resolution */
730 {
731 ipp_attribute_t *attr; /* New attribute */
732
733
734 DEBUG_printf(("ippAddResolution(ipp=%p, group=%02x(%s), name=\"%s\", units=%d, xres=%d, yres=%d)", (void *)ipp, group,
735 ippTagString(group), name, units, xres, yres));
736
737 /*
738 * Range check input...
739 */
740
741 if (!ipp || !name || group < IPP_TAG_ZERO ||
742 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
743 units < IPP_RES_PER_INCH || units > IPP_RES_PER_CM ||
744 xres < 0 || yres < 0)
745 return (NULL);
746
747 /*
748 * Create the attribute...
749 */
750
751 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RESOLUTION, 1)) == NULL)
752 return (NULL);
753
754 attr->values[0].resolution.xres = xres;
755 attr->values[0].resolution.yres = yres;
756 attr->values[0].resolution.units = units;
757
758 return (attr);
759 }
760
761
762 /*
763 * 'ippAddResolutions()' - Add resolution values to an IPP message.
764 *
765 * The @code ipp@ parameter refers to an IPP message previously created using
766 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
767 *
768 * The @code group@ parameter specifies the IPP attribute group tag: none
769 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
770 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
771 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
772 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
773 */
774
775 ipp_attribute_t * /* O - New attribute */
776 ippAddResolutions(ipp_t *ipp, /* I - IPP message */
777 ipp_tag_t group, /* I - IPP group */
778 const char *name, /* I - Name of attribute */
779 int num_values,/* I - Number of values */
780 ipp_res_t units, /* I - Units for resolution */
781 const int *xres, /* I - X resolutions */
782 const int *yres) /* I - Y resolutions */
783 {
784 int i; /* Looping var */
785 ipp_attribute_t *attr; /* New attribute */
786 _ipp_value_t *value; /* Current value */
787
788
789 DEBUG_printf(("ippAddResolutions(ipp=%p, group=%02x(%s), name=\"%s\", num_value=%d, units=%d, xres=%p, yres=%p)", (void *)ipp, group, ippTagString(group), name, num_values, units, (void *)xres, (void *)yres));
790
791 /*
792 * Range check input...
793 */
794
795 if (!ipp || !name || group < IPP_TAG_ZERO ||
796 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
797 num_values < 1 ||
798 units < IPP_RES_PER_INCH || units > IPP_RES_PER_CM)
799 return (NULL);
800
801 /*
802 * Create the attribute...
803 */
804
805 if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RESOLUTION, num_values)) == NULL)
806 return (NULL);
807
808 if (xres && yres)
809 {
810 for (i = num_values, value = attr->values;
811 i > 0;
812 i --, value ++)
813 {
814 value->resolution.xres = *xres++;
815 value->resolution.yres = *yres++;
816 value->resolution.units = units;
817 }
818 }
819
820 return (attr);
821 }
822
823
824 /*
825 * 'ippAddSeparator()' - Add a group separator to an IPP message.
826 *
827 * The @code ipp@ parameter refers to an IPP message previously created using
828 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
829 */
830
831 ipp_attribute_t * /* O - New attribute */
832 ippAddSeparator(ipp_t *ipp) /* I - IPP message */
833 {
834 DEBUG_printf(("ippAddSeparator(ipp=%p)", (void *)ipp));
835
836 /*
837 * Range check input...
838 */
839
840 if (!ipp)
841 return (NULL);
842
843 /*
844 * Create the attribute...
845 */
846
847 return (ipp_add_attr(ipp, NULL, IPP_TAG_ZERO, IPP_TAG_ZERO, 0));
848 }
849
850
851 /*
852 * 'ippAddString()' - Add a language-encoded string to an IPP message.
853 *
854 * The @code ipp@ parameter refers to an IPP message previously created using
855 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
856 *
857 * The @code group@ parameter specifies the IPP attribute group tag: none
858 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
859 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
860 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
861 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
862 *
863 * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword
864 * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType
865 * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage
866 * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage
867 * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme
868 * (@code IPP_TAG_URISCHEME@).
869 *
870 * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage and
871 * textWithLanguage string values and must be @code NULL@ for all other string values.
872 */
873
874 ipp_attribute_t * /* O - New attribute */
875 ippAddString(ipp_t *ipp, /* I - IPP message */
876 ipp_tag_t group, /* I - IPP group */
877 ipp_tag_t value_tag, /* I - Type of attribute */
878 const char *name, /* I - Name of attribute */
879 const char *language, /* I - Language code */
880 const char *value) /* I - Value */
881 {
882 ipp_tag_t temp_tag; /* Temporary value tag (masked) */
883 ipp_attribute_t *attr; /* New attribute */
884 char code[IPP_MAX_LANGUAGE];
885 /* Charset/language code buffer */
886
887
888 DEBUG_printf(("ippAddString(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\", language=\"%s\", value=\"%s\")", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, language, value));
889
890 /*
891 * Range check input...
892 */
893
894 temp_tag = (ipp_tag_t)((int)value_tag & IPP_TAG_CUPS_MASK);
895
896 #if 0
897 if (!ipp || !name || group < IPP_TAG_ZERO ||
898 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
899 (temp_tag < IPP_TAG_TEXT && temp_tag != IPP_TAG_TEXTLANG &&
900 temp_tag != IPP_TAG_NAMELANG) || temp_tag > IPP_TAG_MIMETYPE)
901 return (NULL);
902
903 if ((temp_tag == IPP_TAG_TEXTLANG || temp_tag == IPP_TAG_NAMELANG)
904 != (language != NULL))
905 return (NULL);
906 #else
907 if (!ipp || !name || group < IPP_TAG_ZERO ||
908 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE)
909 return (NULL);
910 #endif /* 0 */
911
912 /*
913 * See if we need to map charset, language, or locale values...
914 */
915
916 if (language && ((int)value_tag & IPP_TAG_CUPS_CONST) &&
917 strcmp(language, ipp_lang_code(language, code, sizeof(code))))
918 value_tag = temp_tag; /* Don't do a fast copy */
919 else if (value && value_tag == (ipp_tag_t)(IPP_TAG_CHARSET | IPP_TAG_CUPS_CONST) &&
920 strcmp(value, ipp_get_code(value, code, sizeof(code))))
921 value_tag = temp_tag; /* Don't do a fast copy */
922 else if (value && value_tag == (ipp_tag_t)(IPP_TAG_LANGUAGE | IPP_TAG_CUPS_CONST) &&
923 strcmp(value, ipp_lang_code(value, code, sizeof(code))))
924 value_tag = temp_tag; /* Don't do a fast copy */
925
926 /*
927 * Create the attribute...
928 */
929
930 if ((attr = ipp_add_attr(ipp, name, group, value_tag, 1)) == NULL)
931 return (NULL);
932
933 /*
934 * Initialize the attribute data...
935 */
936
937 if ((int)value_tag & IPP_TAG_CUPS_CONST)
938 {
939 attr->values[0].string.language = (char *)language;
940 attr->values[0].string.text = (char *)value;
941 }
942 else
943 {
944 if (language)
945 attr->values[0].string.language = _cupsStrAlloc(ipp_lang_code(language, code,
946 sizeof(code)));
947
948 if (value)
949 {
950 if (value_tag == IPP_TAG_CHARSET)
951 attr->values[0].string.text = _cupsStrAlloc(ipp_get_code(value, code,
952 sizeof(code)));
953 else if (value_tag == IPP_TAG_LANGUAGE)
954 attr->values[0].string.text = _cupsStrAlloc(ipp_lang_code(value, code,
955 sizeof(code)));
956 else
957 attr->values[0].string.text = _cupsStrAlloc(value);
958 }
959 }
960
961 return (attr);
962 }
963
964
965 /*
966 * 'ippAddStringf()' - Add a formatted string to an IPP message.
967 *
968 * The @code ipp@ parameter refers to an IPP message previously created using
969 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
970 *
971 * The @code group@ parameter specifies the IPP attribute group tag: none
972 * (@code IPP_TAG_ZERO@, for member attributes), document
973 * (@code IPP_TAG_DOCUMENT@), event notification
974 * (@code IPP_TAG_EVENT_NOTIFICATION@), operation (@code IPP_TAG_OPERATION@),
975 * printer (@code IPP_TAG_PRINTER@), subscription (@code IPP_TAG_SUBSCRIPTION@),
976 * or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
977 *
978 * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword
979 * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType
980 * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage
981 * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage
982 * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme
983 * (@code IPP_TAG_URISCHEME@).
984 *
985 * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage
986 * and textWithLanguage string values and must be @code NULL@ for all other
987 * string values.
988 *
989 * The @code format@ parameter uses formatting characters compatible with the
990 * printf family of standard functions. Additional arguments follow it as
991 * needed. The formatted string is truncated as needed to the maximum length of
992 * the corresponding value type.
993 *
994 * @since CUPS 1.7/macOS 10.9@
995 */
996
997 ipp_attribute_t * /* O - New attribute */
998 ippAddStringf(ipp_t *ipp, /* I - IPP message */
999 ipp_tag_t group, /* I - IPP group */
1000 ipp_tag_t value_tag, /* I - Type of attribute */
1001 const char *name, /* I - Name of attribute */
1002 const char *language, /* I - Language code (@code NULL@ for default) */
1003 const char *format, /* I - Printf-style format string */
1004 ...) /* I - Additional arguments as needed */
1005 {
1006 ipp_attribute_t *attr; /* New attribute */
1007 va_list ap; /* Argument pointer */
1008
1009
1010 va_start(ap, format);
1011 attr = ippAddStringfv(ipp, group, value_tag, name, language, format, ap);
1012 va_end(ap);
1013
1014 return (attr);
1015 }
1016
1017
1018 /*
1019 * 'ippAddStringfv()' - Add a formatted string to an IPP message.
1020 *
1021 * The @code ipp@ parameter refers to an IPP message previously created using
1022 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
1023 *
1024 * The @code group@ parameter specifies the IPP attribute group tag: none
1025 * (@code IPP_TAG_ZERO@, for member attributes), document
1026 * (@code IPP_TAG_DOCUMENT@), event notification
1027 * (@code IPP_TAG_EVENT_NOTIFICATION@), operation (@code IPP_TAG_OPERATION@),
1028 * printer (@code IPP_TAG_PRINTER@), subscription (@code IPP_TAG_SUBSCRIPTION@),
1029 * or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
1030 *
1031 * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword
1032 * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType
1033 * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage
1034 * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage
1035 * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme
1036 * (@code IPP_TAG_URISCHEME@).
1037 *
1038 * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage
1039 * and textWithLanguage string values and must be @code NULL@ for all other
1040 * string values.
1041 *
1042 * The @code format@ parameter uses formatting characters compatible with the
1043 * printf family of standard functions. Additional arguments are passed in the
1044 * stdarg pointer @code ap@. The formatted string is truncated as needed to the
1045 * maximum length of the corresponding value type.
1046 *
1047 * @since CUPS 1.7/macOS 10.9@
1048 */
1049
1050 ipp_attribute_t * /* O - New attribute */
1051 ippAddStringfv(ipp_t *ipp, /* I - IPP message */
1052 ipp_tag_t group, /* I - IPP group */
1053 ipp_tag_t value_tag, /* I - Type of attribute */
1054 const char *name, /* I - Name of attribute */
1055 const char *language, /* I - Language code (@code NULL@ for default) */
1056 const char *format, /* I - Printf-style format string */
1057 va_list ap) /* I - Additional arguments */
1058 {
1059 char buffer[IPP_MAX_TEXT + 4];
1060 /* Formatted text string */
1061 ssize_t bytes, /* Length of formatted value */
1062 max_bytes; /* Maximum number of bytes for value */
1063
1064
1065 /*
1066 * Range check input...
1067 */
1068
1069 if (!ipp || !name || group < IPP_TAG_ZERO ||
1070 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
1071 (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG &&
1072 value_tag != IPP_TAG_NAMELANG) || value_tag > IPP_TAG_MIMETYPE ||
1073 !format)
1074 return (NULL);
1075
1076 if ((value_tag == IPP_TAG_TEXTLANG || value_tag == IPP_TAG_NAMELANG)
1077 != (language != NULL))
1078 return (NULL);
1079
1080 /*
1081 * Format the string...
1082 */
1083
1084 if (!strcmp(format, "%s"))
1085 {
1086 /*
1087 * Optimize the simple case...
1088 */
1089
1090 const char *s = va_arg(ap, char *);
1091
1092 if (!s)
1093 s = "(null)";
1094
1095 bytes = (ssize_t)strlen(s);
1096 strlcpy(buffer, s, sizeof(buffer));
1097 }
1098 else
1099 {
1100 /*
1101 * Do a full formatting of the message...
1102 */
1103
1104 if ((bytes = vsnprintf(buffer, sizeof(buffer), format, ap)) < 0)
1105 return (NULL);
1106 }
1107
1108 /*
1109 * Limit the length of the string...
1110 */
1111
1112 switch (value_tag)
1113 {
1114 default :
1115 case IPP_TAG_TEXT :
1116 case IPP_TAG_TEXTLANG :
1117 max_bytes = IPP_MAX_TEXT;
1118 break;
1119
1120 case IPP_TAG_NAME :
1121 case IPP_TAG_NAMELANG :
1122 max_bytes = IPP_MAX_NAME;
1123 break;
1124
1125 case IPP_TAG_CHARSET :
1126 max_bytes = IPP_MAX_CHARSET;
1127 break;
1128
1129 case IPP_TAG_KEYWORD :
1130 max_bytes = IPP_MAX_KEYWORD;
1131 break;
1132
1133 case IPP_TAG_LANGUAGE :
1134 max_bytes = IPP_MAX_LANGUAGE;
1135 break;
1136
1137 case IPP_TAG_MIMETYPE :
1138 max_bytes = IPP_MAX_MIMETYPE;
1139 break;
1140
1141 case IPP_TAG_URI :
1142 max_bytes = IPP_MAX_URI;
1143 break;
1144
1145 case IPP_TAG_URISCHEME :
1146 max_bytes = IPP_MAX_URISCHEME;
1147 break;
1148 }
1149
1150 if (bytes >= max_bytes)
1151 {
1152 char *bufmax, /* Buffer at max_bytes */
1153 *bufptr; /* Pointer into buffer */
1154
1155 bufptr = buffer + strlen(buffer) - 1;
1156 bufmax = buffer + max_bytes - 1;
1157
1158 while (bufptr > bufmax)
1159 {
1160 if (*bufptr & 0x80)
1161 {
1162 while ((*bufptr & 0xc0) == 0x80 && bufptr > buffer)
1163 bufptr --;
1164 }
1165
1166 bufptr --;
1167 }
1168
1169 *bufptr = '\0';
1170 }
1171
1172 /*
1173 * Add the formatted string and return...
1174 */
1175
1176 return (ippAddString(ipp, group, value_tag, name, language, buffer));
1177 }
1178
1179
1180 /*
1181 * 'ippAddStrings()' - Add language-encoded strings to an IPP message.
1182 *
1183 * The @code ipp@ parameter refers to an IPP message previously created using
1184 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
1185 *
1186 * The @code group@ parameter specifies the IPP attribute group tag: none
1187 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
1188 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
1189 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
1190 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
1191 *
1192 * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword
1193 * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType
1194 * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage
1195 * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage
1196 * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme
1197 * (@code IPP_TAG_URISCHEME@).
1198 *
1199 * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage and
1200 * textWithLanguage string values and must be @code NULL@ for all other string values.
1201 */
1202
1203 ipp_attribute_t * /* O - New attribute */
1204 ippAddStrings(
1205 ipp_t *ipp, /* I - IPP message */
1206 ipp_tag_t group, /* I - IPP group */
1207 ipp_tag_t value_tag, /* I - Type of attribute */
1208 const char *name, /* I - Name of attribute */
1209 int num_values, /* I - Number of values */
1210 const char *language, /* I - Language code (@code NULL@ for default) */
1211 const char * const *values) /* I - Values */
1212 {
1213 int i; /* Looping var */
1214 ipp_tag_t temp_tag; /* Temporary value tag (masked) */
1215 ipp_attribute_t *attr; /* New attribute */
1216 _ipp_value_t *value; /* Current value */
1217 char code[32]; /* Language/charset value buffer */
1218
1219
1220 DEBUG_printf(("ippAddStrings(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\", num_values=%d, language=\"%s\", values=%p)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, num_values, language, (void *)values));
1221
1222 /*
1223 * Range check input...
1224 */
1225
1226 temp_tag = (ipp_tag_t)((int)value_tag & IPP_TAG_CUPS_MASK);
1227
1228 #if 0
1229 if (!ipp || !name || group < IPP_TAG_ZERO ||
1230 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
1231 (temp_tag < IPP_TAG_TEXT && temp_tag != IPP_TAG_TEXTLANG &&
1232 temp_tag != IPP_TAG_NAMELANG) || temp_tag > IPP_TAG_MIMETYPE ||
1233 num_values < 1)
1234 return (NULL);
1235
1236 if ((temp_tag == IPP_TAG_TEXTLANG || temp_tag == IPP_TAG_NAMELANG)
1237 != (language != NULL))
1238 return (NULL);
1239 #else
1240 if (!ipp || !name || group < IPP_TAG_ZERO ||
1241 group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE ||
1242 num_values < 1)
1243 return (NULL);
1244 #endif /* 0 */
1245
1246 /*
1247 * See if we need to map charset, language, or locale values...
1248 */
1249
1250 if (language && ((int)value_tag & IPP_TAG_CUPS_CONST) &&
1251 strcmp(language, ipp_lang_code(language, code, sizeof(code))))
1252 value_tag = temp_tag; /* Don't do a fast copy */
1253 else if (values && value_tag == (ipp_tag_t)(IPP_TAG_CHARSET | IPP_TAG_CUPS_CONST))
1254 {
1255 for (i = 0; i < num_values; i ++)
1256 if (strcmp(values[i], ipp_get_code(values[i], code, sizeof(code))))
1257 {
1258 value_tag = temp_tag; /* Don't do a fast copy */
1259 break;
1260 }
1261 }
1262 else if (values && value_tag == (ipp_tag_t)(IPP_TAG_LANGUAGE | IPP_TAG_CUPS_CONST))
1263 {
1264 for (i = 0; i < num_values; i ++)
1265 if (strcmp(values[i], ipp_lang_code(values[i], code, sizeof(code))))
1266 {
1267 value_tag = temp_tag; /* Don't do a fast copy */
1268 break;
1269 }
1270 }
1271
1272 /*
1273 * Create the attribute...
1274 */
1275
1276 if ((attr = ipp_add_attr(ipp, name, group, value_tag, num_values)) == NULL)
1277 return (NULL);
1278
1279 /*
1280 * Initialize the attribute data...
1281 */
1282
1283 for (i = num_values, value = attr->values;
1284 i > 0;
1285 i --, value ++)
1286 {
1287 if (language)
1288 {
1289 if (value == attr->values)
1290 {
1291 if ((int)value_tag & IPP_TAG_CUPS_CONST)
1292 value->string.language = (char *)language;
1293 else
1294 value->string.language = _cupsStrAlloc(ipp_lang_code(language, code,
1295 sizeof(code)));
1296 }
1297 else
1298 value->string.language = attr->values[0].string.language;
1299 }
1300
1301 if (values)
1302 {
1303 if ((int)value_tag & IPP_TAG_CUPS_CONST)
1304 value->string.text = (char *)*values++;
1305 else if (value_tag == IPP_TAG_CHARSET)
1306 value->string.text = _cupsStrAlloc(ipp_get_code(*values++, code, sizeof(code)));
1307 else if (value_tag == IPP_TAG_LANGUAGE)
1308 value->string.text = _cupsStrAlloc(ipp_lang_code(*values++, code, sizeof(code)));
1309 else
1310 value->string.text = _cupsStrAlloc(*values++);
1311 }
1312 }
1313
1314 return (attr);
1315 }
1316
1317
1318 /*
1319 * 'ippContainsInteger()' - Determine whether an attribute contains the
1320 * specified value or is within the list of ranges.
1321 *
1322 * Returns non-zero when the attribute contains either a matching integer or
1323 * enum value, or the value falls within one of the rangeOfInteger values for
1324 * the attribute.
1325 *
1326 * @since CUPS 1.7/macOS 10.9@
1327 */
1328
1329 int /* O - 1 on a match, 0 on no match */
1330 ippContainsInteger(
1331 ipp_attribute_t *attr, /* I - Attribute */
1332 int value) /* I - Integer/enum value */
1333 {
1334 int i; /* Looping var */
1335 _ipp_value_t *avalue; /* Current attribute value */
1336
1337
1338 /*
1339 * Range check input...
1340 */
1341
1342 if (!attr)
1343 return (0);
1344
1345 if (attr->value_tag != IPP_TAG_INTEGER && attr->value_tag != IPP_TAG_ENUM &&
1346 attr->value_tag != IPP_TAG_RANGE)
1347 return (0);
1348
1349 /*
1350 * Compare...
1351 */
1352
1353 if (attr->value_tag == IPP_TAG_RANGE)
1354 {
1355 for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++)
1356 if (value >= avalue->range.lower && value <= avalue->range.upper)
1357 return (1);
1358 }
1359 else
1360 {
1361 for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++)
1362 if (value == avalue->integer)
1363 return (1);
1364 }
1365
1366 return (0);
1367 }
1368
1369
1370 /*
1371 * 'ippContainsString()' - Determine whether an attribute contains the
1372 * specified string value.
1373 *
1374 * Returns non-zero when the attribute contains a matching charset, keyword,
1375 * naturalLanguage, mimeMediaType, name, text, uri, or uriScheme value.
1376 *
1377 * @since CUPS 1.7/macOS 10.9@
1378 */
1379
1380 int /* O - 1 on a match, 0 on no match */
1381 ippContainsString(
1382 ipp_attribute_t *attr, /* I - Attribute */
1383 const char *value) /* I - String value */
1384 {
1385 int i; /* Looping var */
1386 _ipp_value_t *avalue; /* Current attribute value */
1387
1388
1389 DEBUG_printf(("ippContainsString(attr=%p, value=\"%s\")", (void *)attr, value));
1390
1391 /*
1392 * Range check input...
1393 */
1394
1395 if (!attr || !value)
1396 {
1397 DEBUG_puts("1ippContainsString: Returning 0 (bad input)");
1398 return (0);
1399 }
1400
1401 /*
1402 * Compare...
1403 */
1404
1405 DEBUG_printf(("1ippContainsString: attr %s, %s with %d values.",
1406 attr->name, ippTagString(attr->value_tag),
1407 attr->num_values));
1408
1409 switch (attr->value_tag & IPP_TAG_CUPS_MASK)
1410 {
1411 case IPP_TAG_CHARSET :
1412 case IPP_TAG_KEYWORD :
1413 case IPP_TAG_LANGUAGE :
1414 case IPP_TAG_URI :
1415 case IPP_TAG_URISCHEME :
1416 for (i = attr->num_values, avalue = attr->values;
1417 i > 0;
1418 i --, avalue ++)
1419 {
1420 DEBUG_printf(("1ippContainsString: value[%d]=\"%s\"",
1421 attr->num_values - i, avalue->string.text));
1422
1423 if (!strcmp(value, avalue->string.text))
1424 {
1425 DEBUG_puts("1ippContainsString: Returning 1 (match)");
1426 return (1);
1427 }
1428 }
1429
1430 case IPP_TAG_MIMETYPE :
1431 case IPP_TAG_NAME :
1432 case IPP_TAG_NAMELANG :
1433 case IPP_TAG_TEXT :
1434 case IPP_TAG_TEXTLANG :
1435 for (i = attr->num_values, avalue = attr->values;
1436 i > 0;
1437 i --, avalue ++)
1438 {
1439 DEBUG_printf(("1ippContainsString: value[%d]=\"%s\"",
1440 attr->num_values - i, avalue->string.text));
1441
1442 if (!_cups_strcasecmp(value, avalue->string.text))
1443 {
1444 DEBUG_puts("1ippContainsString: Returning 1 (match)");
1445 return (1);
1446 }
1447 }
1448
1449 default :
1450 break;
1451 }
1452
1453 DEBUG_puts("1ippContainsString: Returning 0 (no match)");
1454
1455 return (0);
1456 }
1457
1458
1459 /*
1460 * 'ippCopyAttribute()' - Copy an attribute.
1461 *
1462 * The specified attribute, @code attr@, is copied to the destination IPP message.
1463 * When @code quickcopy@ is non-zero, a "shallow" reference copy of the attribute is
1464 * created - this should only be done as long as the original source IPP message will
1465 * not be freed for the life of the destination.
1466 *
1467 * @since CUPS 1.6/macOS 10.8@
1468 */
1469
1470
1471 ipp_attribute_t * /* O - New attribute */
1472 ippCopyAttribute(
1473 ipp_t *dst, /* I - Destination IPP message */
1474 ipp_attribute_t *srcattr, /* I - Attribute to copy */
1475 int quickcopy) /* I - 1 for a referenced copy, 0 for normal */
1476 {
1477 int i; /* Looping var */
1478 ipp_tag_t srctag; /* Source value tag */
1479 ipp_attribute_t *dstattr; /* Destination attribute */
1480 _ipp_value_t *srcval, /* Source value */
1481 *dstval; /* Destination value */
1482
1483
1484 DEBUG_printf(("ippCopyAttribute(dst=%p, srcattr=%p, quickcopy=%d)", (void *)dst, (void *)srcattr, quickcopy));
1485
1486 /*
1487 * Range check input...
1488 */
1489
1490 if (!dst || !srcattr)
1491 return (NULL);
1492
1493 /*
1494 * Copy it...
1495 */
1496
1497 quickcopy = (quickcopy && (srcattr->value_tag & IPP_TAG_CUPS_CONST)) ? IPP_TAG_CUPS_CONST : 0;
1498 srctag = srcattr->value_tag & IPP_TAG_CUPS_MASK;
1499
1500 switch (srctag)
1501 {
1502 case IPP_TAG_ZERO :
1503 dstattr = ippAddSeparator(dst);
1504 break;
1505
1506 case IPP_TAG_UNSUPPORTED_VALUE :
1507 case IPP_TAG_DEFAULT :
1508 case IPP_TAG_UNKNOWN :
1509 case IPP_TAG_NOVALUE :
1510 case IPP_TAG_NOTSETTABLE :
1511 case IPP_TAG_DELETEATTR :
1512 case IPP_TAG_ADMINDEFINE :
1513 dstattr = ippAddOutOfBand(dst, srcattr->group_tag, srctag, srcattr->name);
1514 break;
1515
1516 case IPP_TAG_INTEGER :
1517 case IPP_TAG_ENUM :
1518 case IPP_TAG_BOOLEAN :
1519 case IPP_TAG_DATE :
1520 case IPP_TAG_RESOLUTION :
1521 case IPP_TAG_RANGE :
1522 if ((dstattr = ipp_add_attr(dst, srcattr->name, srcattr->group_tag, srctag, srcattr->num_values)) != NULL)
1523 memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t));
1524 break;
1525
1526 case IPP_TAG_TEXT :
1527 case IPP_TAG_NAME :
1528 case IPP_TAG_RESERVED_STRING :
1529 case IPP_TAG_KEYWORD :
1530 case IPP_TAG_URI :
1531 case IPP_TAG_URISCHEME :
1532 case IPP_TAG_CHARSET :
1533 case IPP_TAG_LANGUAGE :
1534 case IPP_TAG_MIMETYPE :
1535 if ((dstattr = ippAddStrings(dst, srcattr->group_tag, (ipp_tag_t)(srctag | quickcopy), srcattr->name, srcattr->num_values, NULL, NULL)) == NULL)
1536 break;
1537
1538 if (quickcopy)
1539 {
1540 /*
1541 * Can safely quick-copy these string values...
1542 */
1543
1544 memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t));
1545 }
1546 else
1547 {
1548 /*
1549 * Otherwise do a normal reference counted copy...
1550 */
1551
1552 for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++)
1553 dstval->string.text = _cupsStrAlloc(srcval->string.text);
1554 }
1555 break;
1556
1557 case IPP_TAG_TEXTLANG :
1558 case IPP_TAG_NAMELANG :
1559 if ((dstattr = ippAddStrings(dst, srcattr->group_tag, (ipp_tag_t)(srctag | quickcopy), srcattr->name, srcattr->num_values, NULL, NULL)) == NULL)
1560 break;
1561
1562 if (quickcopy)
1563 {
1564 /*
1565 * Can safely quick-copy these string values...
1566 */
1567
1568 memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t));
1569 }
1570 else if (srcattr->value_tag & IPP_TAG_CUPS_CONST)
1571 {
1572 /*
1573 * Otherwise do a normal reference counted copy...
1574 */
1575
1576 for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++)
1577 {
1578 if (srcval == srcattr->values)
1579 dstval->string.language = _cupsStrAlloc(srcval->string.language);
1580 else
1581 dstval->string.language = dstattr->values[0].string.language;
1582
1583 dstval->string.text = _cupsStrAlloc(srcval->string.text);
1584 }
1585 }
1586 break;
1587
1588 case IPP_TAG_BEGIN_COLLECTION :
1589 if ((dstattr = ippAddCollections(dst, srcattr->group_tag, srcattr->name, srcattr->num_values, NULL)) == NULL)
1590 break;
1591
1592 for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++)
1593 {
1594 dstval->collection = srcval->collection;
1595 srcval->collection->use ++;
1596 }
1597 break;
1598
1599 case IPP_TAG_STRING :
1600 default :
1601 if ((dstattr = ipp_add_attr(dst, srcattr->name, srcattr->group_tag, srctag, srcattr->num_values)) == NULL)
1602 break;
1603
1604 for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++)
1605 {
1606 dstval->unknown.length = srcval->unknown.length;
1607
1608 if (dstval->unknown.length > 0)
1609 {
1610 if ((dstval->unknown.data = malloc((size_t)dstval->unknown.length)) == NULL)
1611 dstval->unknown.length = 0;
1612 else
1613 memcpy(dstval->unknown.data, srcval->unknown.data, (size_t)dstval->unknown.length);
1614 }
1615 }
1616 break; /* anti-compiler-warning-code */
1617 }
1618
1619 return (dstattr);
1620 }
1621
1622
1623 /*
1624 * 'ippCopyAttributes()' - Copy attributes from one IPP message to another.
1625 *
1626 * Zero or more attributes are copied from the source IPP message, @code src@, to the
1627 * destination IPP message, @code dst@. When @code quickcopy@ is non-zero, a "shallow"
1628 * reference copy of the attribute is created - this should only be done as long as the
1629 * original source IPP message will not be freed for the life of the destination.
1630 *
1631 * The @code cb@ and @code context@ parameters provide a generic way to "filter" the
1632 * attributes that are copied - the function must return 1 to copy the attribute or
1633 * 0 to skip it. The function may also choose to do a partial copy of the source attribute
1634 * itself.
1635 *
1636 * @since CUPS 1.6/macOS 10.8@
1637 */
1638
1639 int /* O - 1 on success, 0 on error */
1640 ippCopyAttributes(
1641 ipp_t *dst, /* I - Destination IPP message */
1642 ipp_t *src, /* I - Source IPP message */
1643 int quickcopy, /* I - 1 for a referenced copy, 0 for normal */
1644 ipp_copycb_t cb, /* I - Copy callback or @code NULL@ for none */
1645 void *context) /* I - Context pointer */
1646 {
1647 ipp_attribute_t *srcattr; /* Source attribute */
1648
1649
1650 DEBUG_printf(("ippCopyAttributes(dst=%p, src=%p, quickcopy=%d, cb=%p, context=%p)", (void *)dst, (void *)src, quickcopy, (void *)cb, context));
1651
1652 /*
1653 * Range check input...
1654 */
1655
1656 if (!dst || !src)
1657 return (0);
1658
1659 /*
1660 * Loop through source attributes and copy as needed...
1661 */
1662
1663 for (srcattr = src->attrs; srcattr; srcattr = srcattr->next)
1664 if (!cb || (*cb)(context, dst, srcattr))
1665 if (!ippCopyAttribute(dst, srcattr, quickcopy))
1666 return (0);
1667
1668 return (1);
1669 }
1670
1671
1672 /*
1673 * 'ippDateToTime()' - Convert from RFC 2579 Date/Time format to time in
1674 * seconds.
1675 */
1676
1677 time_t /* O - UNIX time value */
1678 ippDateToTime(const ipp_uchar_t *date) /* I - RFC 2579 date info */
1679 {
1680 struct tm unixdate; /* UNIX date/time info */
1681 time_t t; /* Computed time */
1682
1683
1684 if (!date)
1685 return (0);
1686
1687 memset(&unixdate, 0, sizeof(unixdate));
1688
1689 /*
1690 * RFC-2579 date/time format is:
1691 *
1692 * Byte(s) Description
1693 * ------- -----------
1694 * 0-1 Year (0 to 65535)
1695 * 2 Month (1 to 12)
1696 * 3 Day (1 to 31)
1697 * 4 Hours (0 to 23)
1698 * 5 Minutes (0 to 59)
1699 * 6 Seconds (0 to 60, 60 = "leap second")
1700 * 7 Deciseconds (0 to 9)
1701 * 8 +/- UTC
1702 * 9 UTC hours (0 to 11)
1703 * 10 UTC minutes (0 to 59)
1704 */
1705
1706 unixdate.tm_year = ((date[0] << 8) | date[1]) - 1900;
1707 unixdate.tm_mon = date[2] - 1;
1708 unixdate.tm_mday = date[3];
1709 unixdate.tm_hour = date[4];
1710 unixdate.tm_min = date[5];
1711 unixdate.tm_sec = date[6];
1712
1713 t = mktime(&unixdate);
1714
1715 if (date[8] == '-')
1716 t += date[9] * 3600 + date[10] * 60;
1717 else
1718 t -= date[9] * 3600 + date[10] * 60;
1719
1720 return (t);
1721 }
1722
1723
1724 /*
1725 * 'ippDelete()' - Delete an IPP message.
1726 */
1727
1728 void
1729 ippDelete(ipp_t *ipp) /* I - IPP message */
1730 {
1731 ipp_attribute_t *attr, /* Current attribute */
1732 *next; /* Next attribute */
1733
1734
1735 DEBUG_printf(("ippDelete(ipp=%p)", (void *)ipp));
1736
1737 if (!ipp)
1738 return;
1739
1740 ipp->use --;
1741 if (ipp->use > 0)
1742 {
1743 DEBUG_printf(("4debug_retain: %p IPP message (use=%d)", (void *)ipp, ipp->use));
1744 return;
1745 }
1746
1747 DEBUG_printf(("4debug_free: %p IPP message", (void *)ipp));
1748
1749 for (attr = ipp->attrs; attr != NULL; attr = next)
1750 {
1751 next = attr->next;
1752
1753 DEBUG_printf(("4debug_free: %p %s %s%s (%d values)", (void *)attr, attr->name, attr->num_values > 1 ? "1setOf " : "", ippTagString(attr->value_tag), attr->num_values));
1754
1755 ipp_free_values(attr, 0, attr->num_values);
1756
1757 if (attr->name)
1758 _cupsStrFree(attr->name);
1759
1760 free(attr);
1761 }
1762
1763 free(ipp);
1764 }
1765
1766
1767 /*
1768 * 'ippDeleteAttribute()' - Delete a single attribute in an IPP message.
1769 *
1770 * @since CUPS 1.1.19/macOS 10.3@
1771 */
1772
1773 void
1774 ippDeleteAttribute(
1775 ipp_t *ipp, /* I - IPP message */
1776 ipp_attribute_t *attr) /* I - Attribute to delete */
1777 {
1778 ipp_attribute_t *current, /* Current attribute */
1779 *prev; /* Previous attribute */
1780
1781
1782 DEBUG_printf(("ippDeleteAttribute(ipp=%p, attr=%p(%s))", (void *)ipp, (void *)attr, attr ? attr->name : "(null)"));
1783
1784 /*
1785 * Range check input...
1786 */
1787
1788 if (!attr)
1789 return;
1790
1791 DEBUG_printf(("4debug_free: %p %s %s%s (%d values)", (void *)attr, attr->name, attr->num_values > 1 ? "1setOf " : "", ippTagString(attr->value_tag), attr->num_values));
1792
1793 /*
1794 * Find the attribute in the list...
1795 */
1796
1797 if (ipp)
1798 {
1799 for (current = ipp->attrs, prev = NULL;
1800 current;
1801 prev = current, current = current->next)
1802 if (current == attr)
1803 {
1804 /*
1805 * Found it, remove the attribute from the list...
1806 */
1807
1808 if (prev)
1809 prev->next = current->next;
1810 else
1811 ipp->attrs = current->next;
1812
1813 if (current == ipp->last)
1814 ipp->last = prev;
1815
1816 break;
1817 }
1818
1819 if (!current)
1820 return;
1821 }
1822
1823 /*
1824 * Free memory used by the attribute...
1825 */
1826
1827 ipp_free_values(attr, 0, attr->num_values);
1828
1829 if (attr->name)
1830 _cupsStrFree(attr->name);
1831
1832 free(attr);
1833 }
1834
1835
1836 /*
1837 * 'ippDeleteValues()' - Delete values in an attribute.
1838 *
1839 * The @code element@ parameter specifies the first value to delete, starting at
1840 * 0. It must be less than the number of values returned by @link ippGetCount@.
1841 *
1842 * The @code attr@ parameter may be modified as a result of setting the value.
1843 *
1844 * Deleting all values in an attribute deletes the attribute.
1845 *
1846 * @since CUPS 1.6/macOS 10.8@
1847 */
1848
1849 int /* O - 1 on success, 0 on failure */
1850 ippDeleteValues(
1851 ipp_t *ipp, /* I - IPP message */
1852 ipp_attribute_t **attr, /* IO - Attribute */
1853 int element, /* I - Index of first value to delete (0-based) */
1854 int count) /* I - Number of values to delete */
1855 {
1856 /*
1857 * Range check input...
1858 */
1859
1860 if (!ipp || !attr || !*attr ||
1861 element < 0 || element >= (*attr)->num_values || count <= 0 ||
1862 (element + count) >= (*attr)->num_values)
1863 return (0);
1864
1865 /*
1866 * If we are deleting all values, just delete the attribute entirely.
1867 */
1868
1869 if (count == (*attr)->num_values)
1870 {
1871 ippDeleteAttribute(ipp, *attr);
1872 *attr = NULL;
1873 return (1);
1874 }
1875
1876 /*
1877 * Otherwise free the values in question and return.
1878 */
1879
1880 ipp_free_values(*attr, element, count);
1881
1882 return (1);
1883 }
1884
1885
1886 /*
1887 * 'ippFindAttribute()' - Find a named attribute in a request.
1888 *
1889 * Starting with CUPS 2.0, the attribute name can contain a hierarchical list
1890 * of attribute and member names separated by slashes, for example
1891 * "media-col/media-size".
1892 */
1893
1894 ipp_attribute_t * /* O - Matching attribute */
1895 ippFindAttribute(ipp_t *ipp, /* I - IPP message */
1896 const char *name, /* I - Name of attribute */
1897 ipp_tag_t type) /* I - Type of attribute */
1898 {
1899 DEBUG_printf(("2ippFindAttribute(ipp=%p, name=\"%s\", type=%02x(%s))", (void *)ipp, name, type, ippTagString(type)));
1900
1901 if (!ipp || !name)
1902 return (NULL);
1903
1904 /*
1905 * Reset the current pointer...
1906 */
1907
1908 ipp->current = NULL;
1909 ipp->atend = 0;
1910
1911 /*
1912 * Search for the attribute...
1913 */
1914
1915 return (ippFindNextAttribute(ipp, name, type));
1916 }
1917
1918
1919 /*
1920 * 'ippFindNextAttribute()' - Find the next named attribute in a request.
1921 *
1922 * Starting with CUPS 2.0, the attribute name can contain a hierarchical list
1923 * of attribute and member names separated by slashes, for example
1924 * "media-col/media-size".
1925 */
1926
1927 ipp_attribute_t * /* O - Matching attribute */
1928 ippFindNextAttribute(ipp_t *ipp, /* I - IPP message */
1929 const char *name, /* I - Name of attribute */
1930 ipp_tag_t type) /* I - Type of attribute */
1931 {
1932 ipp_attribute_t *attr, /* Current atttribute */
1933 *childattr; /* Child attribute */
1934 ipp_tag_t value_tag; /* Value tag */
1935 char parent[1024], /* Parent attribute name */
1936 *child = NULL; /* Child attribute name */
1937
1938
1939 DEBUG_printf(("2ippFindNextAttribute(ipp=%p, name=\"%s\", type=%02x(%s))", (void *)ipp, name, type, ippTagString(type)));
1940
1941 if (!ipp || !name)
1942 return (NULL);
1943
1944 DEBUG_printf(("3ippFindNextAttribute: atend=%d", ipp->atend));
1945
1946 if (ipp->atend)
1947 return (NULL);
1948
1949 if (strchr(name, '/'))
1950 {
1951 /*
1952 * Search for child attribute...
1953 */
1954
1955 strlcpy(parent, name, sizeof(parent));
1956 if ((child = strchr(parent, '/')) == NULL)
1957 {
1958 DEBUG_puts("3ippFindNextAttribute: Attribute name too long.");
1959 return (NULL);
1960 }
1961
1962 *child++ = '\0';
1963
1964 if (ipp->current && ipp->current->name && ipp->current->value_tag == IPP_TAG_BEGIN_COLLECTION && !strcmp(parent, ipp->current->name))
1965 {
1966 while (ipp->curindex < ipp->current->num_values)
1967 {
1968 if ((childattr = ippFindNextAttribute(ipp->current->values[ipp->curindex].collection, child, type)) != NULL)
1969 return (childattr);
1970
1971 ipp->curindex ++;
1972 if (ipp->curindex < ipp->current->num_values && ipp->current->values[ipp->curindex].collection)
1973 ipp->current->values[ipp->curindex].collection->current = NULL;
1974 }
1975
1976 ipp->prev = ipp->current;
1977 ipp->current = ipp->current->next;
1978 ipp->curindex = 0;
1979
1980 if (!ipp->current)
1981 {
1982 ipp->atend = 1;
1983 return (NULL);
1984 }
1985 }
1986
1987 if (!ipp->current)
1988 {
1989 ipp->prev = NULL;
1990 ipp->current = ipp->attrs;
1991 ipp->curindex = 0;
1992 }
1993
1994 name = parent;
1995 attr = ipp->current;
1996 }
1997 else if (ipp->current)
1998 {
1999 ipp->prev = ipp->current;
2000 attr = ipp->current->next;
2001 }
2002 else
2003 {
2004 ipp->prev = NULL;
2005 attr = ipp->attrs;
2006 }
2007
2008 for (; attr != NULL; ipp->prev = attr, attr = attr->next)
2009 {
2010 DEBUG_printf(("4ippFindAttribute: attr=%p, name=\"%s\"", (void *)attr, attr->name));
2011
2012 value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_CUPS_MASK);
2013
2014 if (attr->name != NULL && _cups_strcasecmp(attr->name, name) == 0 &&
2015 (value_tag == type || type == IPP_TAG_ZERO || name == parent ||
2016 (value_tag == IPP_TAG_TEXTLANG && type == IPP_TAG_TEXT) ||
2017 (value_tag == IPP_TAG_NAMELANG && type == IPP_TAG_NAME)))
2018 {
2019 ipp->current = attr;
2020
2021 if (name == parent && attr->value_tag == IPP_TAG_BEGIN_COLLECTION)
2022 {
2023 int i; /* Looping var */
2024
2025 for (i = 0; i < attr->num_values; i ++)
2026 {
2027 if ((childattr = ippFindAttribute(attr->values[i].collection, child, type)) != NULL)
2028 {
2029 attr->values[0].collection->curindex = i;
2030 return (childattr);
2031 }
2032 }
2033 }
2034 else
2035 return (attr);
2036 }
2037 }
2038
2039 ipp->current = NULL;
2040 ipp->prev = NULL;
2041 ipp->atend = 1;
2042
2043 return (NULL);
2044 }
2045
2046
2047 /*
2048 * 'ippFirstAttribute()' - Return the first attribute in the message.
2049 *
2050 * @since CUPS 1.6/macOS 10.8@
2051 */
2052
2053 ipp_attribute_t * /* O - First attribute or @code NULL@ if none */
2054 ippFirstAttribute(ipp_t *ipp) /* I - IPP message */
2055 {
2056 /*
2057 * Range check input...
2058 */
2059
2060 if (!ipp)
2061 return (NULL);
2062
2063 /*
2064 * Return the first attribute...
2065 */
2066
2067 return (ipp->current = ipp->attrs);
2068 }
2069
2070
2071 /*
2072 * 'ippGetBoolean()' - Get a boolean value for an attribute.
2073 *
2074 * The @code element@ parameter specifies which value to get from 0 to
2075 * @code ippGetCount(attr)@ - 1.
2076 *
2077 * @since CUPS 1.6/macOS 10.8@
2078 */
2079
2080 int /* O - Boolean value or 0 on error */
2081 ippGetBoolean(ipp_attribute_t *attr, /* I - IPP attribute */
2082 int element) /* I - Value number (0-based) */
2083 {
2084 /*
2085 * Range check input...
2086 */
2087
2088 if (!attr || attr->value_tag != IPP_TAG_BOOLEAN ||
2089 element < 0 || element >= attr->num_values)
2090 return (0);
2091
2092 /*
2093 * Return the value...
2094 */
2095
2096 return (attr->values[element].boolean);
2097 }
2098
2099
2100 /*
2101 * 'ippGetCollection()' - Get a collection value for an attribute.
2102 *
2103 * The @code element@ parameter specifies which value to get from 0 to
2104 * @code ippGetCount(attr)@ - 1.
2105 *
2106 * @since CUPS 1.6/macOS 10.8@
2107 */
2108
2109 ipp_t * /* O - Collection value or @code NULL@ on error */
2110 ippGetCollection(
2111 ipp_attribute_t *attr, /* I - IPP attribute */
2112 int element) /* I - Value number (0-based) */
2113 {
2114 /*
2115 * Range check input...
2116 */
2117
2118 if (!attr || attr->value_tag != IPP_TAG_BEGIN_COLLECTION ||
2119 element < 0 || element >= attr->num_values)
2120 return (NULL);
2121
2122 /*
2123 * Return the value...
2124 */
2125
2126 return (attr->values[element].collection);
2127 }
2128
2129
2130 /*
2131 * 'ippGetCount()' - Get the number of values in an attribute.
2132 *
2133 * @since CUPS 1.6/macOS 10.8@
2134 */
2135
2136 int /* O - Number of values or 0 on error */
2137 ippGetCount(ipp_attribute_t *attr) /* I - IPP attribute */
2138 {
2139 /*
2140 * Range check input...
2141 */
2142
2143 if (!attr)
2144 return (0);
2145
2146 /*
2147 * Return the number of values...
2148 */
2149
2150 return (attr->num_values);
2151 }
2152
2153
2154 /*
2155 * 'ippGetDate()' - Get a dateTime value for an attribute.
2156 *
2157 * The @code element@ parameter specifies which value to get from 0 to
2158 * @code ippGetCount(attr)@ - 1.
2159 *
2160 * @since CUPS 1.6/macOS 10.8@
2161 */
2162
2163 const ipp_uchar_t * /* O - dateTime value or @code NULL@ */
2164 ippGetDate(ipp_attribute_t *attr, /* I - IPP attribute */
2165 int element) /* I - Value number (0-based) */
2166 {
2167 /*
2168 * Range check input...
2169 */
2170
2171 if (!attr || attr->value_tag != IPP_TAG_DATE ||
2172 element < 0 || element >= attr->num_values)
2173 return (NULL);
2174
2175 /*
2176 * Return the value...
2177 */
2178
2179 return (attr->values[element].date);
2180 }
2181
2182
2183 /*
2184 * 'ippGetGroupTag()' - Get the group associated with an attribute.
2185 *
2186 * @since CUPS 1.6/macOS 10.8@
2187 */
2188
2189 ipp_tag_t /* O - Group tag or @code IPP_TAG_ZERO@ on error */
2190 ippGetGroupTag(ipp_attribute_t *attr) /* I - IPP attribute */
2191 {
2192 /*
2193 * Range check input...
2194 */
2195
2196 if (!attr)
2197 return (IPP_TAG_ZERO);
2198
2199 /*
2200 * Return the group...
2201 */
2202
2203 return (attr->group_tag);
2204 }
2205
2206
2207 /*
2208 * 'ippGetInteger()' - Get the integer/enum value for an attribute.
2209 *
2210 * The @code element@ parameter specifies which value to get from 0 to
2211 * @code ippGetCount(attr)@ - 1.
2212 *
2213 * @since CUPS 1.6/macOS 10.8@
2214 */
2215
2216 int /* O - Value or 0 on error */
2217 ippGetInteger(ipp_attribute_t *attr, /* I - IPP attribute */
2218 int element) /* I - Value number (0-based) */
2219 {
2220 /*
2221 * Range check input...
2222 */
2223
2224 if (!attr || (attr->value_tag != IPP_TAG_INTEGER && attr->value_tag != IPP_TAG_ENUM) ||
2225 element < 0 || element >= attr->num_values)
2226 return (0);
2227
2228 /*
2229 * Return the value...
2230 */
2231
2232 return (attr->values[element].integer);
2233 }
2234
2235
2236 /*
2237 * 'ippGetName()' - Get the attribute name.
2238 *
2239 * @since CUPS 1.6/macOS 10.8@
2240 */
2241
2242 const char * /* O - Attribute name or @code NULL@ for separators */
2243 ippGetName(ipp_attribute_t *attr) /* I - IPP attribute */
2244 {
2245 /*
2246 * Range check input...
2247 */
2248
2249 if (!attr)
2250 return (NULL);
2251
2252 /*
2253 * Return the name...
2254 */
2255
2256 return (attr->name);
2257 }
2258
2259
2260 /*
2261 * 'ippGetOctetString()' - Get an octetString value from an IPP attribute.
2262 *
2263 * The @code element@ parameter specifies which value to get from 0 to
2264 * @code ippGetCount(attr)@ - 1.
2265 *
2266 * @since CUPS 1.7/macOS 10.9@
2267 */
2268
2269 void * /* O - Pointer to octetString data */
2270 ippGetOctetString(
2271 ipp_attribute_t *attr, /* I - IPP attribute */
2272 int element, /* I - Value number (0-based) */
2273 int *datalen) /* O - Length of octetString data */
2274 {
2275 /*
2276 * Range check input...
2277 */
2278
2279 if (!attr || attr->value_tag != IPP_TAG_STRING ||
2280 element < 0 || element >= attr->num_values)
2281 {
2282 if (datalen)
2283 *datalen = 0;
2284
2285 return (NULL);
2286 }
2287
2288 /*
2289 * Return the values...
2290 */
2291
2292 if (datalen)
2293 *datalen = attr->values[element].unknown.length;
2294
2295 return (attr->values[element].unknown.data);
2296 }
2297
2298
2299 /*
2300 * 'ippGetOperation()' - Get the operation ID in an IPP message.
2301 *
2302 * @since CUPS 1.6/macOS 10.8@
2303 */
2304
2305 ipp_op_t /* O - Operation ID or 0 on error */
2306 ippGetOperation(ipp_t *ipp) /* I - IPP request message */
2307 {
2308 /*
2309 * Range check input...
2310 */
2311
2312 if (!ipp)
2313 return ((ipp_op_t)0);
2314
2315 /*
2316 * Return the value...
2317 */
2318
2319 return (ipp->request.op.operation_id);
2320 }
2321
2322
2323 /*
2324 * 'ippGetRange()' - Get a rangeOfInteger value from an attribute.
2325 *
2326 * The @code element@ parameter specifies which value to get from 0 to
2327 * @code ippGetCount(attr)@ - 1.
2328 *
2329 * @since CUPS 1.6/macOS 10.8@
2330 */
2331
2332 int /* O - Lower value of range or 0 */
2333 ippGetRange(ipp_attribute_t *attr, /* I - IPP attribute */
2334 int element, /* I - Value number (0-based) */
2335 int *uppervalue)/* O - Upper value of range */
2336 {
2337 /*
2338 * Range check input...
2339 */
2340
2341 if (!attr || attr->value_tag != IPP_TAG_RANGE ||
2342 element < 0 || element >= attr->num_values)
2343 {
2344 if (uppervalue)
2345 *uppervalue = 0;
2346
2347 return (0);
2348 }
2349
2350 /*
2351 * Return the values...
2352 */
2353
2354 if (uppervalue)
2355 *uppervalue = attr->values[element].range.upper;
2356
2357 return (attr->values[element].range.lower);
2358 }
2359
2360
2361 /*
2362 * 'ippGetRequestId()' - Get the request ID from an IPP message.
2363 *
2364 * @since CUPS 1.6/macOS 10.8@
2365 */
2366
2367 int /* O - Request ID or 0 on error */
2368 ippGetRequestId(ipp_t *ipp) /* I - IPP message */
2369 {
2370 /*
2371 * Range check input...
2372 */
2373
2374 if (!ipp)
2375 return (0);
2376
2377 /*
2378 * Return the request ID...
2379 */
2380
2381 return (ipp->request.any.request_id);
2382 }
2383
2384
2385 /*
2386 * 'ippGetResolution()' - Get a resolution value for an attribute.
2387 *
2388 * The @code element@ parameter specifies which value to get from 0 to
2389 * @code ippGetCount(attr)@ - 1.
2390 *
2391 * @since CUPS 1.6/macOS 10.8@
2392 */
2393
2394 int /* O - Horizontal/cross feed resolution or 0 */
2395 ippGetResolution(
2396 ipp_attribute_t *attr, /* I - IPP attribute */
2397 int element, /* I - Value number (0-based) */
2398 int *yres, /* O - Vertical/feed resolution */
2399 ipp_res_t *units) /* O - Units for resolution */
2400 {
2401 /*
2402 * Range check input...
2403 */
2404
2405 if (!attr || attr->value_tag != IPP_TAG_RESOLUTION ||
2406 element < 0 || element >= attr->num_values)
2407 {
2408 if (yres)
2409 *yres = 0;
2410
2411 if (units)
2412 *units = (ipp_res_t)0;
2413
2414 return (0);
2415 }
2416
2417 /*
2418 * Return the value...
2419 */
2420
2421 if (yres)
2422 *yres = attr->values[element].resolution.yres;
2423
2424 if (units)
2425 *units = attr->values[element].resolution.units;
2426
2427 return (attr->values[element].resolution.xres);
2428 }
2429
2430
2431 /*
2432 * 'ippGetState()' - Get the IPP message state.
2433 *
2434 * @since CUPS 1.6/macOS 10.8@
2435 */
2436
2437 ipp_state_t /* O - IPP message state value */
2438 ippGetState(ipp_t *ipp) /* I - IPP message */
2439 {
2440 /*
2441 * Range check input...
2442 */
2443
2444 if (!ipp)
2445 return (IPP_STATE_IDLE);
2446
2447 /*
2448 * Return the value...
2449 */
2450
2451 return (ipp->state);
2452 }
2453
2454
2455 /*
2456 * 'ippGetStatusCode()' - Get the status code from an IPP response or event message.
2457 *
2458 * @since CUPS 1.6/macOS 10.8@
2459 */
2460
2461 ipp_status_t /* O - Status code in IPP message */
2462 ippGetStatusCode(ipp_t *ipp) /* I - IPP response or event message */
2463 {
2464 /*
2465 * Range check input...
2466 */
2467
2468 if (!ipp)
2469 return (IPP_STATUS_ERROR_INTERNAL);
2470
2471 /*
2472 * Return the value...
2473 */
2474
2475 return (ipp->request.status.status_code);
2476 }
2477
2478
2479 /*
2480 * 'ippGetString()' - Get the string and optionally the language code for an attribute.
2481 *
2482 * The @code element@ parameter specifies which value to get from 0 to
2483 * @code ippGetCount(attr)@ - 1.
2484 *
2485 * @since CUPS 1.6/macOS 10.8@
2486 */
2487
2488 const char *
2489 ippGetString(ipp_attribute_t *attr, /* I - IPP attribute */
2490 int element, /* I - Value number (0-based) */
2491 const char **language)/* O - Language code (@code NULL@ for don't care) */
2492 {
2493 ipp_tag_t tag; /* Value tag */
2494
2495
2496 /*
2497 * Range check input...
2498 */
2499
2500 tag = ippGetValueTag(attr);
2501
2502 if (!attr || element < 0 || element >= attr->num_values || (tag != IPP_TAG_TEXTLANG && tag != IPP_TAG_NAMELANG && (tag < IPP_TAG_TEXT || tag > IPP_TAG_MIMETYPE)))
2503 return (NULL);
2504
2505 /*
2506 * Return the value...
2507 */
2508
2509 if (language)
2510 *language = attr->values[element].string.language;
2511
2512 return (attr->values[element].string.text);
2513 }
2514
2515
2516 /*
2517 * 'ippGetValueTag()' - Get the value tag for an attribute.
2518 *
2519 * @since CUPS 1.6/macOS 10.8@
2520 */
2521
2522 ipp_tag_t /* O - Value tag or @code IPP_TAG_ZERO@ on error */
2523 ippGetValueTag(ipp_attribute_t *attr) /* I - IPP attribute */
2524 {
2525 /*
2526 * Range check input...
2527 */
2528
2529 if (!attr)
2530 return (IPP_TAG_ZERO);
2531
2532 /*
2533 * Return the value...
2534 */
2535
2536 return (attr->value_tag & IPP_TAG_CUPS_MASK);
2537 }
2538
2539
2540 /*
2541 * 'ippGetVersion()' - Get the major and minor version number from an IPP message.
2542 *
2543 * @since CUPS 1.6/macOS 10.8@
2544 */
2545
2546 int /* O - Major version number or 0 on error */
2547 ippGetVersion(ipp_t *ipp, /* I - IPP message */
2548 int *minor) /* O - Minor version number or @code NULL@ for don't care */
2549 {
2550 /*
2551 * Range check input...
2552 */
2553
2554 if (!ipp)
2555 {
2556 if (minor)
2557 *minor = 0;
2558
2559 return (0);
2560 }
2561
2562 /*
2563 * Return the value...
2564 */
2565
2566 if (minor)
2567 *minor = ipp->request.any.version[1];
2568
2569 return (ipp->request.any.version[0]);
2570 }
2571
2572
2573 /*
2574 * 'ippLength()' - Compute the length of an IPP message.
2575 */
2576
2577 size_t /* O - Size of IPP message */
2578 ippLength(ipp_t *ipp) /* I - IPP message */
2579 {
2580 return (ipp_length(ipp, 0));
2581 }
2582
2583
2584 /*
2585 * 'ippNextAttribute()' - Return the next attribute in the message.
2586 *
2587 * @since CUPS 1.6/macOS 10.8@
2588 */
2589
2590 ipp_attribute_t * /* O - Next attribute or @code NULL@ if none */
2591 ippNextAttribute(ipp_t *ipp) /* I - IPP message */
2592 {
2593 /*
2594 * Range check input...
2595 */
2596
2597 if (!ipp || !ipp->current)
2598 return (NULL);
2599
2600 /*
2601 * Return the next attribute...
2602 */
2603
2604 return (ipp->current = ipp->current->next);
2605 }
2606
2607
2608 /*
2609 * 'ippNew()' - Allocate a new IPP message.
2610 */
2611
2612 ipp_t * /* O - New IPP message */
2613 ippNew(void)
2614 {
2615 ipp_t *temp; /* New IPP message */
2616 _cups_globals_t *cg = _cupsGlobals();
2617 /* Global data */
2618
2619
2620 DEBUG_puts("ippNew()");
2621
2622 if ((temp = (ipp_t *)calloc(1, sizeof(ipp_t))) != NULL)
2623 {
2624 /*
2625 * Set default version - usually 2.0...
2626 */
2627
2628 DEBUG_printf(("4debug_alloc: %p IPP message", (void *)temp));
2629
2630 if (cg->server_version == 0)
2631 _cupsSetDefaults();
2632
2633 temp->request.any.version[0] = (ipp_uchar_t)(cg->server_version / 10);
2634 temp->request.any.version[1] = (ipp_uchar_t)(cg->server_version % 10);
2635 temp->use = 1;
2636 }
2637
2638 DEBUG_printf(("1ippNew: Returning %p", (void *)temp));
2639
2640 return (temp);
2641 }
2642
2643
2644 /*
2645 * 'ippNewRequest()' - Allocate a new IPP request message.
2646 *
2647 * The new request message is initialized with the "attributes-charset" and
2648 * "attributes-natural-language" attributes added. The
2649 * "attributes-natural-language" value is derived from the current locale.
2650 *
2651 * @since CUPS 1.2/macOS 10.5@
2652 */
2653
2654 ipp_t * /* O - IPP request message */
2655 ippNewRequest(ipp_op_t op) /* I - Operation code */
2656 {
2657 ipp_t *request; /* IPP request message */
2658 cups_lang_t *language; /* Current language localization */
2659 static int request_id = 0; /* Current request ID */
2660 static _cups_mutex_t request_mutex = _CUPS_MUTEX_INITIALIZER;
2661 /* Mutex for request ID */
2662
2663
2664 DEBUG_printf(("ippNewRequest(op=%02x(%s))", op, ippOpString(op)));
2665
2666 /*
2667 * Create a new IPP message...
2668 */
2669
2670 if ((request = ippNew()) == NULL)
2671 return (NULL);
2672
2673 /*
2674 * Set the operation and request ID...
2675 */
2676
2677 _cupsMutexLock(&request_mutex);
2678
2679 request->request.op.operation_id = op;
2680 request->request.op.request_id = ++request_id;
2681
2682 _cupsMutexUnlock(&request_mutex);
2683
2684 /*
2685 * Use UTF-8 as the character set...
2686 */
2687
2688 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
2689 "attributes-charset", NULL, "utf-8");
2690
2691 /*
2692 * Get the language from the current locale...
2693 */
2694
2695 language = cupsLangDefault();
2696
2697 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
2698 "attributes-natural-language", NULL, language->language);
2699
2700 /*
2701 * Return the new request...
2702 */
2703
2704 return (request);
2705 }
2706
2707
2708 /*
2709 * 'ippNewResponse()' - Allocate a new IPP response message.
2710 *
2711 * The new response message is initialized with the same "version-number",
2712 * "request-id", "attributes-charset", and "attributes-natural-language" as the
2713 * provided request message. If the "attributes-charset" or
2714 * "attributes-natural-language" attributes are missing from the request,
2715 * 'utf-8' and a value derived from the current locale are substituted,
2716 * respectively.
2717 *
2718 * @since CUPS 1.7/macOS 10.9@
2719 */
2720
2721 ipp_t * /* O - IPP response message */
2722 ippNewResponse(ipp_t *request) /* I - IPP request message */
2723 {
2724 ipp_t *response; /* IPP response message */
2725 ipp_attribute_t *attr; /* Current attribute */
2726
2727
2728 /*
2729 * Range check input...
2730 */
2731
2732 if (!request)
2733 return (NULL);
2734
2735 /*
2736 * Create a new IPP message...
2737 */
2738
2739 if ((response = ippNew()) == NULL)
2740 return (NULL);
2741
2742 /*
2743 * Copy the request values over to the response...
2744 */
2745
2746 response->request.status.version[0] = request->request.op.version[0];
2747 response->request.status.version[1] = request->request.op.version[1];
2748 response->request.status.request_id = request->request.op.request_id;
2749
2750 /*
2751 * The first attribute MUST be attributes-charset...
2752 */
2753
2754 attr = request->attrs;
2755
2756 if (attr && attr->name && !strcmp(attr->name, "attributes-charset") &&
2757 attr->group_tag == IPP_TAG_OPERATION &&
2758 attr->value_tag == IPP_TAG_CHARSET &&
2759 attr->num_values == 1)
2760 {
2761 /*
2762 * Copy charset from request...
2763 */
2764
2765 ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
2766 "attributes-charset", NULL, attr->values[0].string.text);
2767 }
2768 else
2769 {
2770 /*
2771 * Use "utf-8" as the default...
2772 */
2773
2774 ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
2775 "attributes-charset", NULL, "utf-8");
2776 }
2777
2778 /*
2779 * Then attributes-natural-language...
2780 */
2781
2782 if (attr)
2783 attr = attr->next;
2784
2785 if (attr && attr->name &&
2786 !strcmp(attr->name, "attributes-natural-language") &&
2787 attr->group_tag == IPP_TAG_OPERATION &&
2788 attr->value_tag == IPP_TAG_LANGUAGE &&
2789 attr->num_values == 1)
2790 {
2791 /*
2792 * Copy language from request...
2793 */
2794
2795 ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
2796 "attributes-natural-language", NULL,
2797 attr->values[0].string.text);
2798 }
2799 else
2800 {
2801 /*
2802 * Use the language from the current locale...
2803 */
2804
2805 cups_lang_t *language = cupsLangDefault();
2806 /* Current locale */
2807
2808 ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
2809 "attributes-natural-language", NULL, language->language);
2810 }
2811
2812 return (response);
2813 }
2814
2815
2816 /*
2817 * 'ippRead()' - Read data for an IPP message from a HTTP connection.
2818 */
2819
2820 ipp_state_t /* O - Current state */
2821 ippRead(http_t *http, /* I - HTTP connection */
2822 ipp_t *ipp) /* I - IPP data */
2823 {
2824 DEBUG_printf(("ippRead(http=%p, ipp=%p), data_remaining=" CUPS_LLFMT, (void *)http, (void *)ipp, CUPS_LLCAST (http ? http->data_remaining : -1)));
2825
2826 if (!http)
2827 return (IPP_STATE_ERROR);
2828
2829 DEBUG_printf(("2ippRead: http->state=%d, http->used=%d", http->state, http->used));
2830
2831 return (ippReadIO(http, (ipp_iocb_t)ipp_read_http, http->blocking, NULL,
2832 ipp));
2833 }
2834
2835
2836 /*
2837 * 'ippReadFile()' - Read data for an IPP message from a file.
2838 *
2839 * @since CUPS 1.1.19/macOS 10.3@
2840 */
2841
2842 ipp_state_t /* O - Current state */
2843 ippReadFile(int fd, /* I - HTTP data */
2844 ipp_t *ipp) /* I - IPP data */
2845 {
2846 DEBUG_printf(("ippReadFile(fd=%d, ipp=%p)", fd, (void *)ipp));
2847
2848 return (ippReadIO(&fd, (ipp_iocb_t)ipp_read_file, 1, NULL, ipp));
2849 }
2850
2851
2852 /*
2853 * 'ippReadIO()' - Read data for an IPP message.
2854 *
2855 * @since CUPS 1.2/macOS 10.5@
2856 */
2857
2858 ipp_state_t /* O - Current state */
2859 ippReadIO(void *src, /* I - Data source */
2860 ipp_iocb_t cb, /* I - Read callback function */
2861 int blocking, /* I - Use blocking IO? */
2862 ipp_t *parent, /* I - Parent request, if any */
2863 ipp_t *ipp) /* I - IPP data */
2864 {
2865 int n; /* Length of data */
2866 unsigned char *buffer, /* Data buffer */
2867 string[IPP_MAX_TEXT],
2868 /* Small string buffer */
2869 *bufptr; /* Pointer into buffer */
2870 ipp_attribute_t *attr; /* Current attribute */
2871 ipp_tag_t tag; /* Current tag */
2872 ipp_tag_t value_tag; /* Current value tag */
2873 _ipp_value_t *value; /* Current value */
2874
2875
2876 DEBUG_printf(("ippReadIO(src=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)", (void *)src, (void *)cb, blocking, (void *)parent, (void *)ipp));
2877 DEBUG_printf(("2ippReadIO: ipp->state=%d", ipp ? ipp->state : IPP_STATE_ERROR));
2878
2879 if (!src || !ipp)
2880 return (IPP_STATE_ERROR);
2881
2882 if ((buffer = (unsigned char *)_cupsBufferGet(IPP_BUF_SIZE)) == NULL)
2883 {
2884 DEBUG_puts("1ippReadIO: Unable to get read buffer.");
2885 return (IPP_STATE_ERROR);
2886 }
2887
2888 switch (ipp->state)
2889 {
2890 case IPP_STATE_IDLE :
2891 ipp->state ++; /* Avoid common problem... */
2892
2893 case IPP_STATE_HEADER :
2894 if (parent == NULL)
2895 {
2896 /*
2897 * Get the request header...
2898 */
2899
2900 if ((*cb)(src, buffer, 8) < 8)
2901 {
2902 DEBUG_puts("1ippReadIO: Unable to read header.");
2903 _cupsBufferRelease((char *)buffer);
2904 return (IPP_STATE_ERROR);
2905 }
2906
2907 /*
2908 * Then copy the request header over...
2909 */
2910
2911 ipp->request.any.version[0] = buffer[0];
2912 ipp->request.any.version[1] = buffer[1];
2913 ipp->request.any.op_status = (buffer[2] << 8) | buffer[3];
2914 ipp->request.any.request_id = (((((buffer[4] << 8) | buffer[5]) << 8) |
2915 buffer[6]) << 8) | buffer[7];
2916
2917 DEBUG_printf(("2ippReadIO: version=%d.%d", buffer[0], buffer[1]));
2918 DEBUG_printf(("2ippReadIO: op_status=%04x",
2919 ipp->request.any.op_status));
2920 DEBUG_printf(("2ippReadIO: request_id=%d",
2921 ipp->request.any.request_id));
2922 }
2923
2924 ipp->state = IPP_STATE_ATTRIBUTE;
2925 ipp->current = NULL;
2926 ipp->curtag = IPP_TAG_ZERO;
2927 ipp->prev = ipp->last;
2928
2929 /*
2930 * If blocking is disabled, stop here...
2931 */
2932
2933 if (!blocking)
2934 break;
2935
2936 case IPP_STATE_ATTRIBUTE :
2937 for (;;)
2938 {
2939 if ((*cb)(src, buffer, 1) < 1)
2940 {
2941 DEBUG_puts("1ippReadIO: Callback returned EOF/error");
2942 _cupsBufferRelease((char *)buffer);
2943 return (IPP_STATE_ERROR);
2944 }
2945
2946 DEBUG_printf(("2ippReadIO: ipp->current=%p, ipp->prev=%p", (void *)ipp->current, (void *)ipp->prev));
2947
2948 /*
2949 * Read this attribute...
2950 */
2951
2952 tag = (ipp_tag_t)buffer[0];
2953 if (tag == IPP_TAG_EXTENSION)
2954 {
2955 /*
2956 * Read 32-bit "extension" tag...
2957 */
2958
2959 if ((*cb)(src, buffer, 4) < 1)
2960 {
2961 DEBUG_puts("1ippReadIO: Callback returned EOF/error");
2962 _cupsBufferRelease((char *)buffer);
2963 return (IPP_STATE_ERROR);
2964 }
2965
2966 tag = (ipp_tag_t)((((((buffer[0] << 8) | buffer[1]) << 8) |
2967 buffer[2]) << 8) | buffer[3]);
2968
2969 if (tag & IPP_TAG_CUPS_CONST)
2970 {
2971 /*
2972 * Fail if the high bit is set in the tag...
2973 */
2974
2975 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP extension tag larger than 0x7FFFFFFF."), 1);
2976 DEBUG_printf(("1ippReadIO: bad tag 0x%x.", tag));
2977 _cupsBufferRelease((char *)buffer);
2978 return (IPP_STATE_ERROR);
2979 }
2980 }
2981
2982 if (tag == IPP_TAG_END)
2983 {
2984 /*
2985 * No more attributes left...
2986 */
2987
2988 DEBUG_puts("2ippReadIO: IPP_TAG_END.");
2989
2990 ipp->state = IPP_STATE_DATA;
2991 break;
2992 }
2993 else if (tag == IPP_TAG_ZERO || (tag == IPP_TAG_OPERATION && ipp->curtag != IPP_TAG_ZERO))
2994 {
2995 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid group tag."), 1);
2996 DEBUG_printf(("1ippReadIO: bad tag 0x%02x.", tag));
2997 _cupsBufferRelease((char *)buffer);
2998 return (IPP_STATE_ERROR);
2999 }
3000 else if (tag < IPP_TAG_UNSUPPORTED_VALUE)
3001 {
3002 /*
3003 * Group tag... Set the current group and continue...
3004 */
3005
3006 if (ipp->curtag == tag)
3007 ipp->prev = ippAddSeparator(ipp);
3008 else if (ipp->current)
3009 ipp->prev = ipp->current;
3010
3011 ipp->curtag = tag;
3012 ipp->current = NULL;
3013 DEBUG_printf(("2ippReadIO: group tag=%x(%s), ipp->prev=%p", tag, ippTagString(tag), (void *)ipp->prev));
3014 continue;
3015 }
3016
3017 DEBUG_printf(("2ippReadIO: value tag=%x(%s)", tag,
3018 ippTagString(tag)));
3019
3020 /*
3021 * Get the name...
3022 */
3023
3024 if ((*cb)(src, buffer, 2) < 2)
3025 {
3026 DEBUG_puts("1ippReadIO: unable to read name length.");
3027 _cupsBufferRelease((char *)buffer);
3028 return (IPP_STATE_ERROR);
3029 }
3030
3031 n = (buffer[0] << 8) | buffer[1];
3032
3033 if (n >= IPP_BUF_SIZE)
3034 {
3035 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP name larger than 32767 bytes."), 1);
3036 DEBUG_printf(("1ippReadIO: bad name length %d.", n));
3037 _cupsBufferRelease((char *)buffer);
3038 return (IPP_STATE_ERROR);
3039 }
3040
3041 DEBUG_printf(("2ippReadIO: name length=%d", n));
3042
3043 if (n && parent)
3044 {
3045 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid named IPP attribute in collection."), 1);
3046 DEBUG_puts("1ippReadIO: bad attribute name in collection.");
3047 return (IPP_STATE_ERROR);
3048 }
3049 else if (n == 0 && tag != IPP_TAG_MEMBERNAME && tag != IPP_TAG_END_COLLECTION)
3050 {
3051 /*
3052 * More values for current attribute...
3053 */
3054
3055 if (ipp->current == NULL)
3056 {
3057 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP attribute has no name."), 1);
3058 DEBUG_puts("1ippReadIO: Attribute without name and no current.");
3059 _cupsBufferRelease((char *)buffer);
3060 return (IPP_STATE_ERROR);
3061 }
3062
3063 attr = ipp->current;
3064 value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_CUPS_MASK);
3065
3066 /*
3067 * Make sure we aren't adding a new value of a different
3068 * type...
3069 */
3070
3071 if (value_tag == IPP_TAG_ZERO)
3072 {
3073 /*
3074 * Setting the value of a collection member...
3075 */
3076
3077 attr->value_tag = tag;
3078 }
3079 else if (value_tag == IPP_TAG_TEXTLANG ||
3080 value_tag == IPP_TAG_NAMELANG ||
3081 (value_tag >= IPP_TAG_TEXT &&
3082 value_tag <= IPP_TAG_MIMETYPE))
3083 {
3084 /*
3085 * String values can sometimes come across in different
3086 * forms; accept sets of differing values...
3087 */
3088
3089 if (tag != IPP_TAG_TEXTLANG && tag != IPP_TAG_NAMELANG &&
3090 (tag < IPP_TAG_TEXT || tag > IPP_TAG_MIMETYPE) &&
3091 tag != IPP_TAG_NOVALUE)
3092 {
3093 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3094 _("IPP 1setOf attribute with incompatible value "
3095 "tags."), 1);
3096 DEBUG_printf(("1ippReadIO: 1setOf value tag %x(%s) != %x(%s)",
3097 value_tag, ippTagString(value_tag), tag,
3098 ippTagString(tag)));
3099 _cupsBufferRelease((char *)buffer);
3100 return (IPP_STATE_ERROR);
3101 }
3102
3103 if (value_tag != tag)
3104 {
3105 DEBUG_printf(("1ippReadIO: Converting %s attribute from %s to %s.",
3106 attr->name, ippTagString(value_tag), ippTagString(tag)));
3107 ippSetValueTag(ipp, &attr, tag);
3108 }
3109 }
3110 else if (value_tag == IPP_TAG_INTEGER ||
3111 value_tag == IPP_TAG_RANGE)
3112 {
3113 /*
3114 * Integer and rangeOfInteger values can sometimes be mixed; accept
3115 * sets of differing values...
3116 */
3117
3118 if (tag != IPP_TAG_INTEGER && tag != IPP_TAG_RANGE)
3119 {
3120 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3121 _("IPP 1setOf attribute with incompatible value "
3122 "tags."), 1);
3123 DEBUG_printf(("1ippReadIO: 1setOf value tag %x(%s) != %x(%s)",
3124 value_tag, ippTagString(value_tag), tag,
3125 ippTagString(tag)));
3126 _cupsBufferRelease((char *)buffer);
3127 return (IPP_STATE_ERROR);
3128 }
3129
3130 if (value_tag == IPP_TAG_INTEGER && tag == IPP_TAG_RANGE)
3131 {
3132 /*
3133 * Convert integer values to rangeOfInteger values...
3134 */
3135
3136 DEBUG_printf(("1ippReadIO: Converting %s attribute to "
3137 "rangeOfInteger.", attr->name));
3138 ippSetValueTag(ipp, &attr, IPP_TAG_RANGE);
3139 }
3140 }
3141 else if (value_tag != tag)
3142 {
3143 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3144 _("IPP 1setOf attribute with incompatible value "
3145 "tags."), 1);
3146 DEBUG_printf(("1ippReadIO: value tag %x(%s) != %x(%s)",
3147 value_tag, ippTagString(value_tag), tag,
3148 ippTagString(tag)));
3149 _cupsBufferRelease((char *)buffer);
3150 return (IPP_STATE_ERROR);
3151 }
3152
3153 /*
3154 * Finally, reallocate the attribute array as needed...
3155 */
3156
3157 if ((value = ipp_set_value(ipp, &attr, attr->num_values)) == NULL)
3158 {
3159 _cupsBufferRelease((char *)buffer);
3160 return (IPP_STATE_ERROR);
3161 }
3162 }
3163 else if (tag == IPP_TAG_MEMBERNAME)
3164 {
3165 /*
3166 * Name must be length 0!
3167 */
3168
3169 if (n)
3170 {
3171 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP member name is not empty."), 1);
3172 DEBUG_puts("1ippReadIO: member name not empty.");
3173 _cupsBufferRelease((char *)buffer);
3174 return (IPP_STATE_ERROR);
3175 }
3176
3177 if (ipp->current)
3178 ipp->prev = ipp->current;
3179
3180 attr = ipp->current = ipp_add_attr(ipp, NULL, ipp->curtag, IPP_TAG_ZERO, 1);
3181 if (!attr)
3182 {
3183 _cupsSetHTTPError(HTTP_STATUS_ERROR);
3184 DEBUG_puts("1ippReadIO: unable to allocate attribute.");
3185 _cupsBufferRelease((char *)buffer);
3186 return (IPP_STATE_ERROR);
3187 }
3188
3189 DEBUG_printf(("2ippReadIO: membername, ipp->current=%p, ipp->prev=%p", (void *)ipp->current, (void *)ipp->prev));
3190
3191 value = attr->values;
3192 }
3193 else if (tag != IPP_TAG_END_COLLECTION)
3194 {
3195 /*
3196 * New attribute; read the name and add it...
3197 */
3198
3199 if ((*cb)(src, buffer, (size_t)n) < n)
3200 {
3201 DEBUG_puts("1ippReadIO: unable to read name.");
3202 _cupsBufferRelease((char *)buffer);
3203 return (IPP_STATE_ERROR);
3204 }
3205
3206 buffer[n] = '\0';
3207
3208 if (ipp->current)
3209 ipp->prev = ipp->current;
3210
3211 if ((attr = ipp->current = ipp_add_attr(ipp, (char *)buffer, ipp->curtag, tag,
3212 1)) == NULL)
3213 {
3214 _cupsSetHTTPError(HTTP_STATUS_ERROR);
3215 DEBUG_puts("1ippReadIO: unable to allocate attribute.");
3216 _cupsBufferRelease((char *)buffer);
3217 return (IPP_STATE_ERROR);
3218 }
3219
3220 DEBUG_printf(("2ippReadIO: name=\"%s\", ipp->current=%p, ipp->prev=%p", buffer, (void *)ipp->current, (void *)ipp->prev));
3221
3222 value = attr->values;
3223 }
3224 else
3225 {
3226 attr = NULL;
3227 value = NULL;
3228 }
3229
3230 if ((*cb)(src, buffer, 2) < 2)
3231 {
3232 DEBUG_puts("1ippReadIO: unable to read value length.");
3233 _cupsBufferRelease((char *)buffer);
3234 return (IPP_STATE_ERROR);
3235 }
3236
3237 n = (buffer[0] << 8) | buffer[1];
3238 DEBUG_printf(("2ippReadIO: value length=%d", n));
3239
3240 if (n >= IPP_BUF_SIZE)
3241 {
3242 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3243 _("IPP value larger than 32767 bytes."), 1);
3244 DEBUG_printf(("1ippReadIO: bad value length %d.", n));
3245 _cupsBufferRelease((char *)buffer);
3246 return (IPP_STATE_ERROR);
3247 }
3248
3249 switch (tag)
3250 {
3251 case IPP_TAG_INTEGER :
3252 case IPP_TAG_ENUM :
3253 if (n != 4)
3254 {
3255 if (tag == IPP_TAG_INTEGER)
3256 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3257 _("IPP integer value not 4 bytes."), 1);
3258 else
3259 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3260 _("IPP enum value not 4 bytes."), 1);
3261 DEBUG_printf(("1ippReadIO: bad integer value length %d.", n));
3262 _cupsBufferRelease((char *)buffer);
3263 return (IPP_STATE_ERROR);
3264 }
3265
3266 if ((*cb)(src, buffer, 4) < 4)
3267 {
3268 DEBUG_puts("1ippReadIO: Unable to read integer value.");
3269 _cupsBufferRelease((char *)buffer);
3270 return (IPP_STATE_ERROR);
3271 }
3272
3273 n = (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
3274 buffer[3];
3275
3276 if (attr->value_tag == IPP_TAG_RANGE)
3277 value->range.lower = value->range.upper = n;
3278 else
3279 value->integer = n;
3280 break;
3281
3282 case IPP_TAG_BOOLEAN :
3283 if (n != 1)
3284 {
3285 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP boolean value not 1 byte."),
3286 1);
3287 DEBUG_printf(("1ippReadIO: bad boolean value length %d.", n));
3288 _cupsBufferRelease((char *)buffer);
3289 return (IPP_STATE_ERROR);
3290 }
3291
3292 if ((*cb)(src, buffer, 1) < 1)
3293 {
3294 DEBUG_puts("1ippReadIO: Unable to read boolean value.");
3295 _cupsBufferRelease((char *)buffer);
3296 return (IPP_STATE_ERROR);
3297 }
3298
3299 value->boolean = (char)buffer[0];
3300 break;
3301
3302 case IPP_TAG_UNSUPPORTED_VALUE :
3303 case IPP_TAG_DEFAULT :
3304 case IPP_TAG_UNKNOWN :
3305 case IPP_TAG_NOVALUE :
3306 case IPP_TAG_NOTSETTABLE :
3307 case IPP_TAG_DELETEATTR :
3308 case IPP_TAG_ADMINDEFINE :
3309 /*
3310 * These value types are not supposed to have values, however
3311 * some vendors (Brother) do not implement IPP correctly and so
3312 * we need to map non-empty values to text...
3313 */
3314
3315 if (attr->value_tag == tag)
3316 {
3317 if (n == 0)
3318 break;
3319
3320 attr->value_tag = IPP_TAG_TEXT;
3321 }
3322
3323 case IPP_TAG_TEXT :
3324 case IPP_TAG_NAME :
3325 case IPP_TAG_RESERVED_STRING :
3326 case IPP_TAG_KEYWORD :
3327 case IPP_TAG_URI :
3328 case IPP_TAG_URISCHEME :
3329 case IPP_TAG_CHARSET :
3330 case IPP_TAG_LANGUAGE :
3331 case IPP_TAG_MIMETYPE :
3332 if (n > 0)
3333 {
3334 if ((*cb)(src, buffer, (size_t)n) < n)
3335 {
3336 DEBUG_puts("1ippReadIO: unable to read string value.");
3337 _cupsBufferRelease((char *)buffer);
3338 return (IPP_STATE_ERROR);
3339 }
3340 }
3341
3342 buffer[n] = '\0';
3343 value->string.text = _cupsStrAlloc((char *)buffer);
3344 DEBUG_printf(("2ippReadIO: value=\"%s\"", value->string.text));
3345 break;
3346
3347 case IPP_TAG_DATE :
3348 if (n != 11)
3349 {
3350 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP date value not 11 bytes."), 1);
3351 DEBUG_printf(("1ippReadIO: bad date value length %d.", n));
3352 _cupsBufferRelease((char *)buffer);
3353 return (IPP_STATE_ERROR);
3354 }
3355
3356 if ((*cb)(src, value->date, 11) < 11)
3357 {
3358 DEBUG_puts("1ippReadIO: Unable to read date value.");
3359 _cupsBufferRelease((char *)buffer);
3360 return (IPP_STATE_ERROR);
3361 }
3362 break;
3363
3364 case IPP_TAG_RESOLUTION :
3365 if (n != 9)
3366 {
3367 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3368 _("IPP resolution value not 9 bytes."), 1);
3369 DEBUG_printf(("1ippReadIO: bad resolution value length %d.", n));
3370 _cupsBufferRelease((char *)buffer);
3371 return (IPP_STATE_ERROR);
3372 }
3373
3374 if ((*cb)(src, buffer, 9) < 9)
3375 {
3376 DEBUG_puts("1ippReadIO: Unable to read resolution value.");
3377 _cupsBufferRelease((char *)buffer);
3378 return (IPP_STATE_ERROR);
3379 }
3380
3381 value->resolution.xres =
3382 (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
3383 buffer[3];
3384 value->resolution.yres =
3385 (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) |
3386 buffer[7];
3387 value->resolution.units =
3388 (ipp_res_t)buffer[8];
3389 break;
3390
3391 case IPP_TAG_RANGE :
3392 if (n != 8)
3393 {
3394 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3395 _("IPP rangeOfInteger value not 8 bytes."), 1);
3396 DEBUG_printf(("1ippReadIO: bad rangeOfInteger value length "
3397 "%d.", n));
3398 _cupsBufferRelease((char *)buffer);
3399 return (IPP_STATE_ERROR);
3400 }
3401
3402 if ((*cb)(src, buffer, 8) < 8)
3403 {
3404 DEBUG_puts("1ippReadIO: Unable to read range value.");
3405 _cupsBufferRelease((char *)buffer);
3406 return (IPP_STATE_ERROR);
3407 }
3408
3409 value->range.lower =
3410 (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
3411 buffer[3];
3412 value->range.upper =
3413 (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) |
3414 buffer[7];
3415 break;
3416
3417 case IPP_TAG_TEXTLANG :
3418 case IPP_TAG_NAMELANG :
3419 if (n < 4)
3420 {
3421 if (tag == IPP_TAG_TEXTLANG)
3422 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3423 _("IPP textWithLanguage value less than "
3424 "minimum 4 bytes."), 1);
3425 else
3426 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3427 _("IPP nameWithLanguage value less than "
3428 "minimum 4 bytes."), 1);
3429 DEBUG_printf(("1ippReadIO: bad stringWithLanguage value "
3430 "length %d.", n));
3431 _cupsBufferRelease((char *)buffer);
3432 return (IPP_STATE_ERROR);
3433 }
3434
3435 if ((*cb)(src, buffer, (size_t)n) < n)
3436 {
3437 DEBUG_puts("1ippReadIO: Unable to read string w/language "
3438 "value.");
3439 _cupsBufferRelease((char *)buffer);
3440 return (IPP_STATE_ERROR);
3441 }
3442
3443 bufptr = buffer;
3444
3445 /*
3446 * text-with-language and name-with-language are composite
3447 * values:
3448 *
3449 * language-length
3450 * language
3451 * text-length
3452 * text
3453 */
3454
3455 n = (bufptr[0] << 8) | bufptr[1];
3456
3457 if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE) || n >= (int)sizeof(string))
3458 {
3459 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3460 _("IPP language length overflows value."), 1);
3461 DEBUG_printf(("1ippReadIO: bad language value length %d.",
3462 n));
3463 _cupsBufferRelease((char *)buffer);
3464 return (IPP_STATE_ERROR);
3465 }
3466 else if (n >= IPP_MAX_LANGUAGE)
3467 {
3468 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3469 _("IPP language length too large."), 1);
3470 DEBUG_printf(("1ippReadIO: bad language value length %d.",
3471 n));
3472 _cupsBufferRelease((char *)buffer);
3473 return (IPP_STATE_ERROR);
3474 }
3475
3476 memcpy(string, bufptr + 2, (size_t)n);
3477 string[n] = '\0';
3478
3479 value->string.language = _cupsStrAlloc((char *)string);
3480
3481 bufptr += 2 + n;
3482 n = (bufptr[0] << 8) | bufptr[1];
3483
3484 if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE))
3485 {
3486 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3487 _("IPP string length overflows value."), 1);
3488 DEBUG_printf(("1ippReadIO: bad string value length %d.", n));
3489 _cupsBufferRelease((char *)buffer);
3490 return (IPP_STATE_ERROR);
3491 }
3492
3493 bufptr[2 + n] = '\0';
3494 value->string.text = _cupsStrAlloc((char *)bufptr + 2);
3495 break;
3496
3497 case IPP_TAG_BEGIN_COLLECTION :
3498 /*
3499 * Oh, boy, here comes a collection value, so read it...
3500 */
3501
3502 value->collection = ippNew();
3503
3504 if (n > 0)
3505 {
3506 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3507 _("IPP begCollection value not 0 bytes."), 1);
3508 DEBUG_puts("1ippReadIO: begCollection tag with value length "
3509 "> 0.");
3510 _cupsBufferRelease((char *)buffer);
3511 return (IPP_STATE_ERROR);
3512 }
3513
3514 if (ippReadIO(src, cb, 1, ipp, value->collection) == IPP_STATE_ERROR)
3515 {
3516 DEBUG_puts("1ippReadIO: Unable to read collection value.");
3517 _cupsBufferRelease((char *)buffer);
3518 return (IPP_STATE_ERROR);
3519 }
3520 break;
3521
3522 case IPP_TAG_END_COLLECTION :
3523 _cupsBufferRelease((char *)buffer);
3524
3525 if (n > 0)
3526 {
3527 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3528 _("IPP endCollection value not 0 bytes."), 1);
3529 DEBUG_puts("1ippReadIO: endCollection tag with value length "
3530 "> 0.");
3531 return (IPP_STATE_ERROR);
3532 }
3533
3534 DEBUG_puts("1ippReadIO: endCollection tag...");
3535 return (ipp->state = IPP_STATE_DATA);
3536
3537 case IPP_TAG_MEMBERNAME :
3538 /*
3539 * The value the name of the member in the collection, which
3540 * we need to carry over...
3541 */
3542
3543 if (!attr)
3544 {
3545 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3546 _("IPP memberName with no attribute."), 1);
3547 DEBUG_puts("1ippReadIO: Member name without attribute.");
3548 _cupsBufferRelease((char *)buffer);
3549 return (IPP_STATE_ERROR);
3550 }
3551 else if (n == 0)
3552 {
3553 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3554 _("IPP memberName value is empty."), 1);
3555 DEBUG_puts("1ippReadIO: Empty member name value.");
3556 _cupsBufferRelease((char *)buffer);
3557 return (IPP_STATE_ERROR);
3558 }
3559 else if ((*cb)(src, buffer, (size_t)n) < n)
3560 {
3561 DEBUG_puts("1ippReadIO: Unable to read member name value.");
3562 _cupsBufferRelease((char *)buffer);
3563 return (IPP_STATE_ERROR);
3564 }
3565
3566 buffer[n] = '\0';
3567 attr->name = _cupsStrAlloc((char *)buffer);
3568
3569 /*
3570 * Since collection members are encoded differently than
3571 * regular attributes, make sure we don't start with an
3572 * empty value...
3573 */
3574
3575 attr->num_values --;
3576
3577 DEBUG_printf(("2ippReadIO: member name=\"%s\"", attr->name));
3578 break;
3579
3580 case IPP_TAG_STRING :
3581 default : /* Other unsupported values */
3582 if (tag == IPP_TAG_STRING && n > IPP_MAX_LENGTH)
3583 {
3584 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
3585 _("IPP octetString length too large."), 1);
3586 DEBUG_printf(("1ippReadIO: bad octetString value length %d.",
3587 n));
3588 _cupsBufferRelease((char *)buffer);
3589 return (IPP_STATE_ERROR);
3590 }
3591
3592 value->unknown.length = n;
3593
3594 if (n > 0)
3595 {
3596 if ((value->unknown.data = malloc((size_t)n)) == NULL)
3597 {
3598 _cupsSetHTTPError(HTTP_STATUS_ERROR);
3599 DEBUG_puts("1ippReadIO: Unable to allocate value");
3600 _cupsBufferRelease((char *)buffer);
3601 return (IPP_STATE_ERROR);
3602 }
3603
3604 if ((*cb)(src, value->unknown.data, (size_t)n) < n)
3605 {
3606 DEBUG_puts("1ippReadIO: Unable to read unsupported value.");
3607 _cupsBufferRelease((char *)buffer);
3608 return (IPP_STATE_ERROR);
3609 }
3610 }
3611 else
3612 value->unknown.data = NULL;
3613 break;
3614 }
3615
3616 /*
3617 * If blocking is disabled, stop here...
3618 */
3619
3620 if (!blocking)
3621 break;
3622 }
3623 break;
3624
3625 case IPP_STATE_DATA :
3626 break;
3627
3628 default :
3629 break; /* anti-compiler-warning-code */
3630 }
3631
3632 DEBUG_printf(("1ippReadIO: returning ipp->state=%d.", ipp->state));
3633 _cupsBufferRelease((char *)buffer);
3634
3635 return (ipp->state);
3636 }
3637
3638
3639 /*
3640 * 'ippSetBoolean()' - Set a boolean value in an attribute.
3641 *
3642 * The @code ipp@ parameter refers to an IPP message previously created using
3643 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3644 *
3645 * The @code attr@ parameter may be modified as a result of setting the value.
3646 *
3647 * The @code element@ parameter specifies which value to set from 0 to
3648 * @code ippGetCount(attr)@.
3649 *
3650 * @since CUPS 1.6/macOS 10.8@
3651 */
3652
3653 int /* O - 1 on success, 0 on failure */
3654 ippSetBoolean(ipp_t *ipp, /* I - IPP message */
3655 ipp_attribute_t **attr, /* IO - IPP attribute */
3656 int element, /* I - Value number (0-based) */
3657 int boolvalue)/* I - Boolean value */
3658 {
3659 _ipp_value_t *value; /* Current value */
3660
3661
3662 /*
3663 * Range check input...
3664 */
3665
3666 if (!ipp || !attr || !*attr || (*attr)->value_tag != IPP_TAG_BOOLEAN ||
3667 element < 0 || element > (*attr)->num_values)
3668 return (0);
3669
3670 /*
3671 * Set the value and return...
3672 */
3673
3674 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
3675 value->boolean = (char)boolvalue;
3676
3677 return (value != NULL);
3678 }
3679
3680
3681 /*
3682 * 'ippSetCollection()' - Set a collection value in an attribute.
3683 *
3684 * The @code ipp@ parameter refers to an IPP message previously created using
3685 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3686 *
3687 * The @code attr@ parameter may be modified as a result of setting the value.
3688 *
3689 * The @code element@ parameter specifies which value to set from 0 to
3690 * @code ippGetCount(attr)@.
3691 *
3692 * @since CUPS 1.6/macOS 10.8@
3693 */
3694
3695 int /* O - 1 on success, 0 on failure */
3696 ippSetCollection(
3697 ipp_t *ipp, /* I - IPP message */
3698 ipp_attribute_t **attr, /* IO - IPP attribute */
3699 int element, /* I - Value number (0-based) */
3700 ipp_t *colvalue) /* I - Collection value */
3701 {
3702 _ipp_value_t *value; /* Current value */
3703
3704
3705 /*
3706 * Range check input...
3707 */
3708
3709 if (!ipp || !attr || !*attr || (*attr)->value_tag != IPP_TAG_BEGIN_COLLECTION ||
3710 element < 0 || element > (*attr)->num_values || !colvalue)
3711 return (0);
3712
3713 /*
3714 * Set the value and return...
3715 */
3716
3717 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
3718 {
3719 if (value->collection)
3720 ippDelete(value->collection);
3721
3722 value->collection = colvalue;
3723 colvalue->use ++;
3724 }
3725
3726 return (value != NULL);
3727 }
3728
3729
3730 /*
3731 * 'ippSetDate()' - Set a dateTime value in an attribute.
3732 *
3733 * The @code ipp@ parameter refers to an IPP message previously created using
3734 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3735 *
3736 * The @code attr@ parameter may be modified as a result of setting the value.
3737 *
3738 * The @code element@ parameter specifies which value to set from 0 to
3739 * @code ippGetCount(attr)@.
3740 *
3741 * @since CUPS 1.6/macOS 10.8@
3742 */
3743
3744 int /* O - 1 on success, 0 on failure */
3745 ippSetDate(ipp_t *ipp, /* I - IPP message */
3746 ipp_attribute_t **attr, /* IO - IPP attribute */
3747 int element, /* I - Value number (0-based) */
3748 const ipp_uchar_t *datevalue)/* I - dateTime value */
3749 {
3750 _ipp_value_t *value; /* Current value */
3751
3752
3753 /*
3754 * Range check input...
3755 */
3756
3757 if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_DATE && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || !datevalue)
3758 return (0);
3759
3760 /*
3761 * Set the value and return...
3762 */
3763
3764 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
3765 memcpy(value->date, datevalue, sizeof(value->date));
3766
3767 return (value != NULL);
3768 }
3769
3770
3771 /*
3772 * 'ippSetGroupTag()' - Set the group tag of an attribute.
3773 *
3774 * The @code ipp@ parameter refers to an IPP message previously created using
3775 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3776 *
3777 * The @code attr@ parameter may be modified as a result of setting the value.
3778 *
3779 * The @code group@ parameter specifies the IPP attribute group tag: none
3780 * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@),
3781 * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation
3782 * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription
3783 * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@).
3784 *
3785 * @since CUPS 1.6/macOS 10.8@
3786 */
3787
3788 int /* O - 1 on success, 0 on failure */
3789 ippSetGroupTag(
3790 ipp_t *ipp, /* I - IPP message */
3791 ipp_attribute_t **attr, /* IO - Attribute */
3792 ipp_tag_t group_tag) /* I - Group tag */
3793 {
3794 /*
3795 * Range check input - group tag must be 0x01 to 0x0F, per RFC 8011...
3796 */
3797
3798 if (!ipp || !attr || !*attr ||
3799 group_tag < IPP_TAG_ZERO || group_tag == IPP_TAG_END ||
3800 group_tag >= IPP_TAG_UNSUPPORTED_VALUE)
3801 return (0);
3802
3803 /*
3804 * Set the group tag and return...
3805 */
3806
3807 (*attr)->group_tag = group_tag;
3808
3809 return (1);
3810 }
3811
3812
3813 /*
3814 * 'ippSetInteger()' - Set an integer or enum value in an attribute.
3815 *
3816 * The @code ipp@ parameter refers to an IPP message previously created using
3817 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3818 *
3819 * The @code attr@ parameter may be modified as a result of setting the value.
3820 *
3821 * The @code element@ parameter specifies which value to set from 0 to
3822 * @code ippGetCount(attr)@.
3823 *
3824 * @since CUPS 1.6/macOS 10.8@
3825 */
3826
3827 int /* O - 1 on success, 0 on failure */
3828 ippSetInteger(ipp_t *ipp, /* I - IPP message */
3829 ipp_attribute_t **attr, /* IO - IPP attribute */
3830 int element, /* I - Value number (0-based) */
3831 int intvalue) /* I - Integer/enum value */
3832 {
3833 _ipp_value_t *value; /* Current value */
3834
3835
3836 /*
3837 * Range check input...
3838 */
3839
3840 if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_INTEGER && (*attr)->value_tag != IPP_TAG_ENUM && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values)
3841 return (0);
3842
3843 /*
3844 * Set the value and return...
3845 */
3846
3847 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
3848 {
3849 if ((*attr)->value_tag != IPP_TAG_ENUM)
3850 (*attr)->value_tag = IPP_TAG_INTEGER;
3851
3852 value->integer = intvalue;
3853 }
3854
3855 return (value != NULL);
3856 }
3857
3858
3859 /*
3860 * 'ippSetName()' - Set the name of an attribute.
3861 *
3862 * The @code ipp@ parameter refers to an IPP message previously created using
3863 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3864 *
3865 * The @code attr@ parameter may be modified as a result of setting the value.
3866 *
3867 * @since CUPS 1.6/macOS 10.8@
3868 */
3869
3870 int /* O - 1 on success, 0 on failure */
3871 ippSetName(ipp_t *ipp, /* I - IPP message */
3872 ipp_attribute_t **attr, /* IO - IPP attribute */
3873 const char *name) /* I - Attribute name */
3874 {
3875 char *temp; /* Temporary name value */
3876
3877
3878 /*
3879 * Range check input...
3880 */
3881
3882 if (!ipp || !attr || !*attr)
3883 return (0);
3884
3885 /*
3886 * Set the value and return...
3887 */
3888
3889 if ((temp = _cupsStrAlloc(name)) != NULL)
3890 {
3891 if ((*attr)->name)
3892 _cupsStrFree((*attr)->name);
3893
3894 (*attr)->name = temp;
3895 }
3896
3897 return (temp != NULL);
3898 }
3899
3900
3901 /*
3902 * 'ippSetOctetString()' - Set an octetString value in an IPP attribute.
3903 *
3904 * The @code ipp@ parameter refers to an IPP message previously created using
3905 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3906 *
3907 * The @code attr@ parameter may be modified as a result of setting the value.
3908 *
3909 * The @code element@ parameter specifies which value to set from 0 to
3910 * @code ippGetCount(attr)@.
3911 *
3912 * @since CUPS 1.7/macOS 10.9@
3913 */
3914
3915 int /* O - 1 on success, 0 on failure */
3916 ippSetOctetString(
3917 ipp_t *ipp, /* I - IPP message */
3918 ipp_attribute_t **attr, /* IO - IPP attribute */
3919 int element, /* I - Value number (0-based) */
3920 const void *data, /* I - Pointer to octetString data */
3921 int datalen) /* I - Length of octetString data */
3922 {
3923 _ipp_value_t *value; /* Current value */
3924
3925
3926 /*
3927 * Range check input...
3928 */
3929
3930 if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_STRING && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || datalen < 0 || datalen > IPP_MAX_LENGTH)
3931 return (0);
3932
3933 /*
3934 * Set the value and return...
3935 */
3936
3937 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
3938 {
3939 if ((int)((*attr)->value_tag) & IPP_TAG_CUPS_CONST)
3940 {
3941 /*
3942 * Just copy the pointer...
3943 */
3944
3945 value->unknown.data = (void *)data;
3946 value->unknown.length = datalen;
3947 }
3948 else
3949 {
3950 /*
3951 * Copy the data...
3952 */
3953
3954 (*attr)->value_tag = IPP_TAG_STRING;
3955
3956 if (value->unknown.data)
3957 {
3958 /*
3959 * Free previous data...
3960 */
3961
3962 free(value->unknown.data);
3963
3964 value->unknown.data = NULL;
3965 value->unknown.length = 0;
3966 }
3967
3968 if (datalen > 0)
3969 {
3970 void *temp; /* Temporary data pointer */
3971
3972 if ((temp = malloc((size_t)datalen)) != NULL)
3973 {
3974 memcpy(temp, data, (size_t)datalen);
3975
3976 value->unknown.data = temp;
3977 value->unknown.length = datalen;
3978 }
3979 else
3980 return (0);
3981 }
3982 }
3983 }
3984
3985 return (value != NULL);
3986 }
3987
3988
3989 /*
3990 * 'ippSetOperation()' - Set the operation ID in an IPP request message.
3991 *
3992 * The @code ipp@ parameter refers to an IPP message previously created using
3993 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
3994 *
3995 * @since CUPS 1.6/macOS 10.8@
3996 */
3997
3998 int /* O - 1 on success, 0 on failure */
3999 ippSetOperation(ipp_t *ipp, /* I - IPP request message */
4000 ipp_op_t op) /* I - Operation ID */
4001 {
4002 /*
4003 * Range check input...
4004 */
4005
4006 if (!ipp)
4007 return (0);
4008
4009 /*
4010 * Set the operation and return...
4011 */
4012
4013 ipp->request.op.operation_id = op;
4014
4015 return (1);
4016 }
4017
4018
4019 /*
4020 * 'ippSetRange()' - Set a rangeOfInteger value in an attribute.
4021 *
4022 * The @code ipp@ parameter refers to an IPP message previously created using
4023 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4024 *
4025 * The @code attr@ parameter may be modified as a result of setting the value.
4026 *
4027 * The @code element@ parameter specifies which value to set from 0 to
4028 * @code ippGetCount(attr)@.
4029 *
4030 * @since CUPS 1.6/macOS 10.8@
4031 */
4032
4033 int /* O - 1 on success, 0 on failure */
4034 ippSetRange(ipp_t *ipp, /* I - IPP message */
4035 ipp_attribute_t **attr, /* IO - IPP attribute */
4036 int element, /* I - Value number (0-based) */
4037 int lowervalue, /* I - Lower bound for range */
4038 int uppervalue) /* I - Upper bound for range */
4039 {
4040 _ipp_value_t *value; /* Current value */
4041
4042
4043 /*
4044 * Range check input...
4045 */
4046
4047 if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_RANGE && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || lowervalue > uppervalue)
4048 return (0);
4049
4050 /*
4051 * Set the value and return...
4052 */
4053
4054 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
4055 {
4056 (*attr)->value_tag = IPP_TAG_RANGE;
4057 value->range.lower = lowervalue;
4058 value->range.upper = uppervalue;
4059 }
4060
4061 return (value != NULL);
4062 }
4063
4064
4065 /*
4066 * 'ippSetRequestId()' - Set the request ID in an IPP message.
4067 *
4068 * The @code ipp@ parameter refers to an IPP message previously created using
4069 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4070 *
4071 * The @code request_id@ parameter must be greater than 0.
4072 *
4073 * @since CUPS 1.6/macOS 10.8@
4074 */
4075
4076 int /* O - 1 on success, 0 on failure */
4077 ippSetRequestId(ipp_t *ipp, /* I - IPP message */
4078 int request_id) /* I - Request ID */
4079 {
4080 /*
4081 * Range check input; not checking request_id values since ipptool wants to send
4082 * invalid values for conformance testing and a bad request_id does not affect the
4083 * encoding of a message...
4084 */
4085
4086 if (!ipp)
4087 return (0);
4088
4089 /*
4090 * Set the request ID and return...
4091 */
4092
4093 ipp->request.any.request_id = request_id;
4094
4095 return (1);
4096 }
4097
4098
4099 /*
4100 * 'ippSetResolution()' - Set a resolution value in an attribute.
4101 *
4102 * The @code ipp@ parameter refers to an IPP message previously created using
4103 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4104 *
4105 * The @code attr@ parameter may be modified as a result of setting the value.
4106 *
4107 * The @code element@ parameter specifies which value to set from 0 to
4108 * @code ippGetCount(attr)@.
4109 *
4110 * @since CUPS 1.6/macOS 10.8@
4111 */
4112
4113 int /* O - 1 on success, 0 on failure */
4114 ippSetResolution(
4115 ipp_t *ipp, /* I - IPP message */
4116 ipp_attribute_t **attr, /* IO - IPP attribute */
4117 int element, /* I - Value number (0-based) */
4118 ipp_res_t unitsvalue, /* I - Resolution units */
4119 int xresvalue, /* I - Horizontal/cross feed resolution */
4120 int yresvalue) /* I - Vertical/feed resolution */
4121 {
4122 _ipp_value_t *value; /* Current value */
4123
4124
4125 /*
4126 * Range check input...
4127 */
4128
4129 if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_RESOLUTION && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || xresvalue <= 0 || yresvalue <= 0 || unitsvalue < IPP_RES_PER_INCH || unitsvalue > IPP_RES_PER_CM)
4130 return (0);
4131
4132 /*
4133 * Set the value and return...
4134 */
4135
4136 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
4137 {
4138 (*attr)->value_tag = IPP_TAG_RESOLUTION;
4139 value->resolution.units = unitsvalue;
4140 value->resolution.xres = xresvalue;
4141 value->resolution.yres = yresvalue;
4142 }
4143
4144 return (value != NULL);
4145 }
4146
4147
4148 /*
4149 * 'ippSetState()' - Set the current state of the IPP message.
4150 *
4151 * @since CUPS 1.6/macOS 10.8@
4152 */
4153
4154 int /* O - 1 on success, 0 on failure */
4155 ippSetState(ipp_t *ipp, /* I - IPP message */
4156 ipp_state_t state) /* I - IPP state value */
4157 {
4158 /*
4159 * Range check input...
4160 */
4161
4162 if (!ipp)
4163 return (0);
4164
4165 /*
4166 * Set the state and return...
4167 */
4168
4169 ipp->state = state;
4170 ipp->current = NULL;
4171
4172 return (1);
4173 }
4174
4175
4176 /*
4177 * 'ippSetStatusCode()' - Set the status code in an IPP response or event message.
4178 *
4179 * The @code ipp@ parameter refers to an IPP message previously created using
4180 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4181 *
4182 * @since CUPS 1.6/macOS 10.8@
4183 */
4184
4185 int /* O - 1 on success, 0 on failure */
4186 ippSetStatusCode(ipp_t *ipp, /* I - IPP response or event message */
4187 ipp_status_t status) /* I - Status code */
4188 {
4189 /*
4190 * Range check input...
4191 */
4192
4193 if (!ipp)
4194 return (0);
4195
4196 /*
4197 * Set the status code and return...
4198 */
4199
4200 ipp->request.status.status_code = status;
4201
4202 return (1);
4203 }
4204
4205
4206 /*
4207 * 'ippSetString()' - Set a string value in an attribute.
4208 *
4209 * The @code ipp@ parameter refers to an IPP message previously created using
4210 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4211 *
4212 * The @code attr@ parameter may be modified as a result of setting the value.
4213 *
4214 * The @code element@ parameter specifies which value to set from 0 to
4215 * @code ippGetCount(attr)@.
4216 *
4217 * @since CUPS 1.6/macOS 10.8@
4218 */
4219
4220 int /* O - 1 on success, 0 on failure */
4221 ippSetString(ipp_t *ipp, /* I - IPP message */
4222 ipp_attribute_t **attr, /* IO - IPP attribute */
4223 int element, /* I - Value number (0-based) */
4224 const char *strvalue) /* I - String value */
4225 {
4226 char *temp; /* Temporary string */
4227 _ipp_value_t *value; /* Current value */
4228 ipp_tag_t value_tag; /* Value tag */
4229
4230
4231 /*
4232 * Range check input...
4233 */
4234
4235 if (attr && *attr)
4236 value_tag = (*attr)->value_tag & IPP_TAG_CUPS_MASK;
4237 else
4238 value_tag = IPP_TAG_ZERO;
4239
4240 if (!ipp || !attr || !*attr || (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG && value_tag != IPP_TAG_NAMELANG && value_tag != IPP_TAG_NOVALUE && value_tag != IPP_TAG_UNKNOWN) || value_tag > IPP_TAG_MIMETYPE || element < 0 || element > (*attr)->num_values || !strvalue)
4241 return (0);
4242
4243 /*
4244 * Set the value and return...
4245 */
4246
4247 if ((value = ipp_set_value(ipp, attr, element)) != NULL)
4248 {
4249 if (value_tag == IPP_TAG_NOVALUE || value_tag == IPP_TAG_UNKNOWN)
4250 (*attr)->value_tag = IPP_TAG_KEYWORD;
4251
4252 if (element > 0)
4253 value->string.language = (*attr)->values[0].string.language;
4254
4255 if ((int)((*attr)->value_tag) & IPP_TAG_CUPS_CONST)
4256 value->string.text = (char *)strvalue;
4257 else if ((temp = _cupsStrAlloc(strvalue)) != NULL)
4258 {
4259 if (value->string.text)
4260 _cupsStrFree(value->string.text);
4261
4262 value->string.text = temp;
4263 }
4264 else
4265 return (0);
4266 }
4267
4268 return (value != NULL);
4269 }
4270
4271
4272 /*
4273 * 'ippSetStringf()' - Set a formatted string value of an attribute.
4274 *
4275 * The @code ipp@ parameter refers to an IPP message previously created using
4276 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4277 *
4278 * The @code attr@ parameter may be modified as a result of setting the value.
4279 *
4280 * The @code element@ parameter specifies which value to set from 0 to
4281 * @code ippGetCount(attr)@.
4282 *
4283 * The @code format@ parameter uses formatting characters compatible with the
4284 * printf family of standard functions. Additional arguments follow it as
4285 * needed. The formatted string is truncated as needed to the maximum length of
4286 * the corresponding value type.
4287 *
4288 * @since CUPS 1.7/macOS 10.9@
4289 */
4290
4291 int /* O - 1 on success, 0 on failure */
4292 ippSetStringf(ipp_t *ipp, /* I - IPP message */
4293 ipp_attribute_t **attr, /* IO - IPP attribute */
4294 int element, /* I - Value number (0-based) */
4295 const char *format, /* I - Printf-style format string */
4296 ...) /* I - Additional arguments as needed */
4297 {
4298 int ret; /* Return value */
4299 va_list ap; /* Pointer to additional arguments */
4300
4301
4302 va_start(ap, format);
4303 ret = ippSetStringfv(ipp, attr, element, format, ap);
4304 va_end(ap);
4305
4306 return (ret);
4307 }
4308
4309
4310 /*
4311 * 'ippSetStringf()' - Set a formatted string value of an attribute.
4312 *
4313 * The @code ipp@ parameter refers to an IPP message previously created using
4314 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4315 *
4316 * The @code attr@ parameter may be modified as a result of setting the value.
4317 *
4318 * The @code element@ parameter specifies which value to set from 0 to
4319 * @code ippGetCount(attr)@.
4320 *
4321 * The @code format@ parameter uses formatting characters compatible with the
4322 * printf family of standard functions. Additional arguments follow it as
4323 * needed. The formatted string is truncated as needed to the maximum length of
4324 * the corresponding value type.
4325 *
4326 * @since CUPS 1.7/macOS 10.9@
4327 */
4328
4329 int /* O - 1 on success, 0 on failure */
4330 ippSetStringfv(ipp_t *ipp, /* I - IPP message */
4331 ipp_attribute_t **attr, /* IO - IPP attribute */
4332 int element, /* I - Value number (0-based) */
4333 const char *format, /* I - Printf-style format string */
4334 va_list ap) /* I - Pointer to additional arguments */
4335 {
4336 ipp_tag_t value_tag; /* Value tag */
4337 char buffer[IPP_MAX_TEXT + 4];
4338 /* Formatted text string */
4339 ssize_t bytes, /* Length of formatted value */
4340 max_bytes; /* Maximum number of bytes for value */
4341
4342
4343 /*
4344 * Range check input...
4345 */
4346
4347 if (attr && *attr)
4348 value_tag = (*attr)->value_tag & IPP_TAG_CUPS_MASK;
4349 else
4350 value_tag = IPP_TAG_ZERO;
4351
4352 if (!ipp || !attr || !*attr || (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG && value_tag != IPP_TAG_NAMELANG && value_tag != IPP_TAG_NOVALUE && value_tag != IPP_TAG_UNKNOWN) || value_tag > IPP_TAG_MIMETYPE || !format)
4353 return (0);
4354
4355 /*
4356 * Format the string...
4357 */
4358
4359 if (!strcmp(format, "%s"))
4360 {
4361 /*
4362 * Optimize the simple case...
4363 */
4364
4365 const char *s = va_arg(ap, char *);
4366
4367 if (!s)
4368 s = "(null)";
4369
4370 bytes = (ssize_t)strlen(s);
4371 strlcpy(buffer, s, sizeof(buffer));
4372 }
4373 else
4374 {
4375 /*
4376 * Do a full formatting of the message...
4377 */
4378
4379 if ((bytes = vsnprintf(buffer, sizeof(buffer), format, ap)) < 0)
4380 return (0);
4381 }
4382
4383 /*
4384 * Limit the length of the string...
4385 */
4386
4387 switch (value_tag)
4388 {
4389 default :
4390 case IPP_TAG_TEXT :
4391 case IPP_TAG_TEXTLANG :
4392 max_bytes = IPP_MAX_TEXT;
4393 break;
4394
4395 case IPP_TAG_NAME :
4396 case IPP_TAG_NAMELANG :
4397 max_bytes = IPP_MAX_NAME;
4398 break;
4399
4400 case IPP_TAG_CHARSET :
4401 max_bytes = IPP_MAX_CHARSET;
4402 break;
4403
4404 case IPP_TAG_NOVALUE :
4405 case IPP_TAG_UNKNOWN :
4406 case IPP_TAG_KEYWORD :
4407 max_bytes = IPP_MAX_KEYWORD;
4408 break;
4409
4410 case IPP_TAG_LANGUAGE :
4411 max_bytes = IPP_MAX_LANGUAGE;
4412 break;
4413
4414 case IPP_TAG_MIMETYPE :
4415 max_bytes = IPP_MAX_MIMETYPE;
4416 break;
4417
4418 case IPP_TAG_URI :
4419 max_bytes = IPP_MAX_URI;
4420 break;
4421
4422 case IPP_TAG_URISCHEME :
4423 max_bytes = IPP_MAX_URISCHEME;
4424 break;
4425 }
4426
4427 if (bytes >= max_bytes)
4428 {
4429 char *bufmax, /* Buffer at max_bytes */
4430 *bufptr; /* Pointer into buffer */
4431
4432 bufptr = buffer + strlen(buffer) - 1;
4433 bufmax = buffer + max_bytes - 1;
4434
4435 while (bufptr > bufmax)
4436 {
4437 if (*bufptr & 0x80)
4438 {
4439 while ((*bufptr & 0xc0) == 0x80 && bufptr > buffer)
4440 bufptr --;
4441 }
4442
4443 bufptr --;
4444 }
4445
4446 *bufptr = '\0';
4447 }
4448
4449 /*
4450 * Set the formatted string and return...
4451 */
4452
4453 return (ippSetString(ipp, attr, element, buffer));
4454 }
4455
4456
4457 /*
4458 * 'ippSetValueTag()' - Set the value tag of an attribute.
4459 *
4460 * The @code ipp@ parameter refers to an IPP message previously created using
4461 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4462 *
4463 * The @code attr@ parameter may be modified as a result of setting the value.
4464 *
4465 * Integer (@code IPP_TAG_INTEGER@) values can be promoted to rangeOfInteger
4466 * (@code IPP_TAG_RANGE@) values, the various string tags can be promoted to name
4467 * (@code IPP_TAG_NAME@) or nameWithLanguage (@code IPP_TAG_NAMELANG@) values, text
4468 * (@code IPP_TAG_TEXT@) values can be promoted to textWithLanguage
4469 * (@code IPP_TAG_TEXTLANG@) values, and all values can be demoted to the various
4470 * out-of-band value tags such as no-value (@code IPP_TAG_NOVALUE@). All other changes
4471 * will be rejected.
4472 *
4473 * Promoting a string attribute to nameWithLanguage or textWithLanguage adds the language
4474 * code in the "attributes-natural-language" attribute or, if not present, the language
4475 * code for the current locale.
4476 *
4477 * @since CUPS 1.6/macOS 10.8@
4478 */
4479
4480 int /* O - 1 on success, 0 on failure */
4481 ippSetValueTag(
4482 ipp_t *ipp, /* I - IPP message */
4483 ipp_attribute_t **attr, /* IO - IPP attribute */
4484 ipp_tag_t value_tag) /* I - Value tag */
4485 {
4486 int i; /* Looping var */
4487 _ipp_value_t *value; /* Current value */
4488 int integer; /* Current integer value */
4489 cups_lang_t *language; /* Current language */
4490 char code[32]; /* Language code */
4491 ipp_tag_t temp_tag; /* Temporary value tag */
4492
4493
4494 /*
4495 * Range check input...
4496 */
4497
4498 if (!ipp || !attr || !*attr)
4499 return (0);
4500
4501 /*
4502 * If there is no change, return immediately...
4503 */
4504
4505 if (value_tag == (*attr)->value_tag)
4506 return (1);
4507
4508 /*
4509 * Otherwise implement changes as needed...
4510 */
4511
4512 temp_tag = (ipp_tag_t)((int)((*attr)->value_tag) & IPP_TAG_CUPS_MASK);
4513
4514 switch (value_tag)
4515 {
4516 case IPP_TAG_UNSUPPORTED_VALUE :
4517 case IPP_TAG_DEFAULT :
4518 case IPP_TAG_UNKNOWN :
4519 case IPP_TAG_NOVALUE :
4520 case IPP_TAG_NOTSETTABLE :
4521 case IPP_TAG_DELETEATTR :
4522 case IPP_TAG_ADMINDEFINE :
4523 /*
4524 * Free any existing values...
4525 */
4526
4527 if ((*attr)->num_values > 0)
4528 ipp_free_values(*attr, 0, (*attr)->num_values);
4529
4530 /*
4531 * Set out-of-band value...
4532 */
4533
4534 (*attr)->value_tag = value_tag;
4535 break;
4536
4537 case IPP_TAG_RANGE :
4538 if (temp_tag != IPP_TAG_INTEGER)
4539 return (0);
4540
4541 for (i = (*attr)->num_values, value = (*attr)->values;
4542 i > 0;
4543 i --, value ++)
4544 {
4545 integer = value->integer;
4546 value->range.lower = value->range.upper = integer;
4547 }
4548
4549 (*attr)->value_tag = IPP_TAG_RANGE;
4550 break;
4551
4552 case IPP_TAG_NAME :
4553 if (temp_tag != IPP_TAG_KEYWORD)
4554 return (0);
4555
4556 (*attr)->value_tag = (ipp_tag_t)(IPP_TAG_NAME | ((*attr)->value_tag & IPP_TAG_CUPS_CONST));
4557 break;
4558
4559 case IPP_TAG_NAMELANG :
4560 case IPP_TAG_TEXTLANG :
4561 if (value_tag == IPP_TAG_NAMELANG && (temp_tag != IPP_TAG_NAME && temp_tag != IPP_TAG_KEYWORD))
4562 return (0);
4563
4564 if (value_tag == IPP_TAG_TEXTLANG && temp_tag != IPP_TAG_TEXT)
4565 return (0);
4566
4567 if (ipp->attrs && ipp->attrs->next && ipp->attrs->next->name &&
4568 !strcmp(ipp->attrs->next->name, "attributes-natural-language"))
4569 {
4570 /*
4571 * Use the language code from the IPP message...
4572 */
4573
4574 (*attr)->values[0].string.language =
4575 _cupsStrAlloc(ipp->attrs->next->values[0].string.text);
4576 }
4577 else
4578 {
4579 /*
4580 * Otherwise, use the language code corresponding to the locale...
4581 */
4582
4583 language = cupsLangDefault();
4584 (*attr)->values[0].string.language = _cupsStrAlloc(ipp_lang_code(language->language,
4585 code,
4586 sizeof(code)));
4587 }
4588
4589 for (i = (*attr)->num_values - 1, value = (*attr)->values + 1;
4590 i > 0;
4591 i --, value ++)
4592 value->string.language = (*attr)->values[0].string.language;
4593
4594 if ((int)(*attr)->value_tag & IPP_TAG_CUPS_CONST)
4595 {
4596 /*
4597 * Make copies of all values...
4598 */
4599
4600 for (i = (*attr)->num_values, value = (*attr)->values;
4601 i > 0;
4602 i --, value ++)
4603 value->string.text = _cupsStrAlloc(value->string.text);
4604 }
4605
4606 (*attr)->value_tag = IPP_TAG_NAMELANG;
4607 break;
4608
4609 case IPP_TAG_KEYWORD :
4610 if (temp_tag == IPP_TAG_NAME || temp_tag == IPP_TAG_NAMELANG)
4611 break; /* Silently "allow" name -> keyword */
4612
4613 default :
4614 return (0);
4615 }
4616
4617 return (1);
4618 }
4619
4620
4621 /*
4622 * 'ippSetVersion()' - Set the version number in an IPP message.
4623 *
4624 * The @code ipp@ parameter refers to an IPP message previously created using
4625 * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions.
4626 *
4627 * The valid version numbers are currently 1.0, 1.1, 2.0, 2.1, and 2.2.
4628 *
4629 * @since CUPS 1.6/macOS 10.8@
4630 */
4631
4632 int /* O - 1 on success, 0 on failure */
4633 ippSetVersion(ipp_t *ipp, /* I - IPP message */
4634 int major, /* I - Major version number (major.minor) */
4635 int minor) /* I - Minor version number (major.minor) */
4636 {
4637 /*
4638 * Range check input...
4639 */
4640
4641 if (!ipp || major < 0 || minor < 0)
4642 return (0);
4643
4644 /*
4645 * Set the version number...
4646 */
4647
4648 ipp->request.any.version[0] = (ipp_uchar_t)major;
4649 ipp->request.any.version[1] = (ipp_uchar_t)minor;
4650
4651 return (1);
4652 }
4653
4654
4655 /*
4656 * 'ippTimeToDate()' - Convert from time in seconds to RFC 2579 format.
4657 */
4658
4659 const ipp_uchar_t * /* O - RFC-2579 date/time data */
4660 ippTimeToDate(time_t t) /* I - Time in seconds */
4661 {
4662 struct tm *unixdate; /* UNIX unixdate/time info */
4663 ipp_uchar_t *date = _cupsGlobals()->ipp_date;
4664 /* RFC-2579 date/time data */
4665
4666
4667 /*
4668 * RFC-2579 date/time format is:
4669 *
4670 * Byte(s) Description
4671 * ------- -----------
4672 * 0-1 Year (0 to 65535)
4673 * 2 Month (1 to 12)
4674 * 3 Day (1 to 31)
4675 * 4 Hours (0 to 23)
4676 * 5 Minutes (0 to 59)
4677 * 6 Seconds (0 to 60, 60 = "leap second")
4678 * 7 Deciseconds (0 to 9)
4679 * 8 +/- UTC
4680 * 9 UTC hours (0 to 11)
4681 * 10 UTC minutes (0 to 59)
4682 */
4683
4684 unixdate = gmtime(&t);
4685 unixdate->tm_year += 1900;
4686
4687 date[0] = (ipp_uchar_t)(unixdate->tm_year >> 8);
4688 date[1] = (ipp_uchar_t)(unixdate->tm_year);
4689 date[2] = (ipp_uchar_t)(unixdate->tm_mon + 1);
4690 date[3] = (ipp_uchar_t)unixdate->tm_mday;
4691 date[4] = (ipp_uchar_t)unixdate->tm_hour;
4692 date[5] = (ipp_uchar_t)unixdate->tm_min;
4693 date[6] = (ipp_uchar_t)unixdate->tm_sec;
4694 date[7] = 0;
4695 date[8] = '+';
4696 date[9] = 0;
4697 date[10] = 0;
4698
4699 return (date);
4700 }
4701
4702
4703 /*
4704 * 'ippValidateAttribute()' - Validate the contents of an attribute.
4705 *
4706 * This function validates the contents of an attribute based on the name and
4707 * value tag. 1 is returned if the attribute is valid, 0 otherwise. On
4708 * failure, @link cupsLastErrorString@ is set to a human-readable message.
4709 *
4710 * @since CUPS 1.7/macOS 10.9@
4711 */
4712
4713 int /* O - 1 if valid, 0 otherwise */
4714 ippValidateAttribute(
4715 ipp_attribute_t *attr) /* I - Attribute */
4716 {
4717 int i; /* Looping var */
4718 char scheme[64], /* Scheme from URI */
4719 userpass[256], /* Username/password from URI */
4720 hostname[256], /* Hostname from URI */
4721 resource[1024]; /* Resource from URI */
4722 int port, /* Port number from URI */
4723 uri_status; /* URI separation status */
4724 const char *ptr; /* Pointer into string */
4725 ipp_attribute_t *colattr; /* Collection attribute */
4726 regex_t re; /* Regular expression */
4727 ipp_uchar_t *date; /* Current date value */
4728
4729
4730 /*
4731 * Skip separators.
4732 */
4733
4734 if (!attr->name)
4735 return (1);
4736
4737 /*
4738 * Validate the attribute name.
4739 */
4740
4741 for (ptr = attr->name; *ptr; ptr ++)
4742 if (!isalnum(*ptr & 255) && *ptr != '-' && *ptr != '.' && *ptr != '_')
4743 break;
4744
4745 if (*ptr || ptr == attr->name)
4746 {
4747 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad attribute name - invalid character (RFC 8011 section 5.1.4)."), attr->name);
4748 return (0);
4749 }
4750
4751 if ((ptr - attr->name) > 255)
4752 {
4753 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad attribute name - bad length %d (RFC 8011 section 5.1.4)."), attr->name, (int)(ptr - attr->name));
4754 return (0);
4755 }
4756
4757 switch (attr->value_tag)
4758 {
4759 case IPP_TAG_INTEGER :
4760 break;
4761
4762 case IPP_TAG_BOOLEAN :
4763 for (i = 0; i < attr->num_values; i ++)
4764 {
4765 if (attr->values[i].boolean != 0 &&
4766 attr->values[i].boolean != 1)
4767 {
4768 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad boolean value %d (RFC 8011 section 5.1.21)."), attr->name, attr->values[i].boolean);
4769 return (0);
4770 }
4771 }
4772 break;
4773
4774 case IPP_TAG_ENUM :
4775 for (i = 0; i < attr->num_values; i ++)
4776 {
4777 if (attr->values[i].integer < 1)
4778 {
4779 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad enum value %d - out of range (RFC 8011 section 5.1.5)."), attr->name, attr->values[i].integer);
4780 return (0);
4781 }
4782 }
4783 break;
4784
4785 case IPP_TAG_STRING :
4786 for (i = 0; i < attr->num_values; i ++)
4787 {
4788 if (attr->values[i].unknown.length > IPP_MAX_OCTETSTRING)
4789 {
4790 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad octetString value - bad length %d (RFC 8011 section 5.1.20)."), attr->name, attr->values[i].unknown.length);
4791 return (0);
4792 }
4793 }
4794 break;
4795
4796 case IPP_TAG_DATE :
4797 for (i = 0; i < attr->num_values; i ++)
4798 {
4799 date = attr->values[i].date;
4800
4801 if (date[2] < 1 || date[2] > 12)
4802 {
4803 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime month %u (RFC 8011 section 5.1.15)."), attr->name, date[2]);
4804 return (0);
4805 }
4806
4807 if (date[3] < 1 || date[3] > 31)
4808 {
4809 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime day %u (RFC 8011 section 5.1.15)."), attr->name, date[3]);
4810 return (0);
4811 }
4812
4813 if (date[4] > 23)
4814 {
4815 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime hours %u (RFC 8011 section 5.1.15)."), attr->name, date[4]);
4816 return (0);
4817 }
4818
4819 if (date[5] > 59)
4820 {
4821 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime minutes %u (RFC 8011 section 5.1.15)."), attr->name, date[5]);
4822 return (0);
4823 }
4824
4825 if (date[6] > 60)
4826 {
4827 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime seconds %u (RFC 8011 section 5.1.15)."), attr->name, date[6]);
4828 return (0);
4829 }
4830
4831 if (date[7] > 9)
4832 {
4833 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime deciseconds %u (RFC 8011 section 5.1.15)."), attr->name, date[7]);
4834 return (0);
4835 }
4836
4837 if (date[8] != '-' && date[8] != '+')
4838 {
4839 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC sign '%c' (RFC 8011 section 5.1.15)."), attr->name, date[8]);
4840 return (0);
4841 }
4842
4843 if (date[9] > 11)
4844 {
4845 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC hours %u (RFC 8011 section 5.1.15)."), attr->name, date[9]);
4846 return (0);
4847 }
4848
4849 if (date[10] > 59)
4850 {
4851 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC minutes %u (RFC 8011 section 5.1.15)."), attr->name, date[10]);
4852 return (0);
4853 }
4854 }
4855 break;
4856
4857 case IPP_TAG_RESOLUTION :
4858 for (i = 0; i < attr->num_values; i ++)
4859 {
4860 if (attr->values[i].resolution.xres <= 0)
4861 {
4862 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - cross feed resolution must be positive (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown");
4863 return (0);
4864 }
4865
4866 if (attr->values[i].resolution.yres <= 0)
4867 {
4868 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - feed resolution must be positive (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown");
4869 return (0);
4870 }
4871
4872 if (attr->values[i].resolution.units != IPP_RES_PER_INCH && attr->values[i].resolution.units != IPP_RES_PER_CM)
4873 {
4874 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - bad units value (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown");
4875 return (0);
4876 }
4877 }
4878 break;
4879
4880 case IPP_TAG_RANGE :
4881 for (i = 0; i < attr->num_values; i ++)
4882 {
4883 if (attr->values[i].range.lower > attr->values[i].range.upper)
4884 {
4885 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad rangeOfInteger value %d-%d - lower greater than upper (RFC 8011 section 5.1.14)."), attr->name, attr->values[i].range.lower, attr->values[i].range.upper);
4886 return (0);
4887 }
4888 }
4889 break;
4890
4891 case IPP_TAG_BEGIN_COLLECTION :
4892 for (i = 0; i < attr->num_values; i ++)
4893 {
4894 for (colattr = attr->values[i].collection->attrs;
4895 colattr;
4896 colattr = colattr->next)
4897 {
4898 if (!ippValidateAttribute(colattr))
4899 return (0);
4900 }
4901 }
4902 break;
4903
4904 case IPP_TAG_TEXT :
4905 case IPP_TAG_TEXTLANG :
4906 for (i = 0; i < attr->num_values; i ++)
4907 {
4908 for (ptr = attr->values[i].string.text; *ptr; ptr ++)
4909 {
4910 if ((*ptr & 0xe0) == 0xc0)
4911 {
4912 if ((ptr[1] & 0xc0) != 0x80)
4913 break;
4914
4915 ptr ++;
4916 }
4917 else if ((*ptr & 0xf0) == 0xe0)
4918 {
4919 if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80)
4920 break;
4921
4922 ptr += 2;
4923 }
4924 else if ((*ptr & 0xf8) == 0xf0)
4925 {
4926 if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80 || (ptr[3] & 0xc0) != 0x80)
4927 break;
4928
4929 ptr += 3;
4930 }
4931 else if (*ptr & 0x80)
4932 break;
4933 else if ((*ptr < ' ' && *ptr != '\n' && *ptr != '\r' && *ptr != '\t') || *ptr == 0x7f)
4934 break;
4935 }
4936
4937 if (*ptr)
4938 {
4939 if (*ptr < ' ' || *ptr == 0x7f)
4940 {
4941 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad control character (PWG 5100.14 section 8.3)."), attr->name, attr->values[i].string.text);
4942 return (0);
4943 }
4944 else
4945 {
4946 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad UTF-8 sequence (RFC 8011 section 5.1.2)."), attr->name, attr->values[i].string.text);
4947 return (0);
4948 }
4949 }
4950
4951 if ((ptr - attr->values[i].string.text) > (IPP_MAX_TEXT - 1))
4952 {
4953 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad length %d (RFC 8011 section 5.1.2)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text));
4954 return (0);
4955 }
4956 }
4957 break;
4958
4959 case IPP_TAG_NAME :
4960 case IPP_TAG_NAMELANG :
4961 for (i = 0; i < attr->num_values; i ++)
4962 {
4963 for (ptr = attr->values[i].string.text; *ptr; ptr ++)
4964 {
4965 if ((*ptr & 0xe0) == 0xc0)
4966 {
4967 if ((ptr[1] & 0xc0) != 0x80)
4968 break;
4969
4970 ptr ++;
4971 }
4972 else if ((*ptr & 0xf0) == 0xe0)
4973 {
4974 if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80)
4975 break;
4976
4977 ptr += 2;
4978 }
4979 else if ((*ptr & 0xf8) == 0xf0)
4980 {
4981 if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80 || (ptr[3] & 0xc0) != 0x80)
4982 break;
4983
4984 ptr += 3;
4985 }
4986 else if (*ptr & 0x80)
4987 break;
4988 else if (*ptr < ' ' || *ptr == 0x7f)
4989 break;
4990 }
4991
4992 if (*ptr)
4993 {
4994 if (*ptr < ' ' || *ptr == 0x7f)
4995 {
4996 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad control character (PWG 5100.14 section 8.1)."), attr->name, attr->values[i].string.text);
4997 return (0);
4998 }
4999 else
5000 {
5001 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad UTF-8 sequence (RFC 8011 section 5.1.3)."), attr->name, attr->values[i].string.text);
5002 return (0);
5003 }
5004 }
5005
5006 if ((ptr - attr->values[i].string.text) > (IPP_MAX_NAME - 1))
5007 {
5008 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad length %d (RFC 8011 section 5.1.3)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text));
5009 return (0);
5010 }
5011 }
5012 break;
5013
5014 case IPP_TAG_KEYWORD :
5015 for (i = 0; i < attr->num_values; i ++)
5016 {
5017 for (ptr = attr->values[i].string.text; *ptr; ptr ++)
5018 {
5019 if (!isalnum(*ptr & 255) && *ptr != '-' && *ptr != '.' &&
5020 *ptr != '_')
5021 break;
5022 }
5023
5024 if (*ptr || ptr == attr->values[i].string.text)
5025 {
5026 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad keyword value \"%s\" - invalid character (RFC 8011 section 5.1.4)."), attr->name, attr->values[i].string.text);
5027 return (0);
5028 }
5029
5030 if ((ptr - attr->values[i].string.text) > (IPP_MAX_KEYWORD - 1))
5031 {
5032 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad keyword value \"%s\" - bad length %d (RFC 8011 section 5.1.4)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text));
5033 return (0);
5034 }
5035 }
5036 break;
5037
5038 case IPP_TAG_URI :
5039 for (i = 0; i < attr->num_values; i ++)
5040 {
5041 uri_status = httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text, scheme, sizeof(scheme), userpass, sizeof(userpass), hostname, sizeof(hostname), &port, resource, sizeof(resource));
5042
5043 if (uri_status < HTTP_URI_STATUS_OK)
5044 {
5045 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad URI value \"%s\" - %s (RFC 8011 section 5.1.6)."), attr->name, attr->values[i].string.text, httpURIStatusString(uri_status));
5046 return (0);
5047 }
5048
5049 if (strlen(attr->values[i].string.text) > (IPP_MAX_URI - 1))
5050 {
5051 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad URI value \"%s\" - bad length %d (RFC 8011 section 5.1.6)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text));
5052 }
5053 }
5054 break;
5055
5056 case IPP_TAG_URISCHEME :
5057 for (i = 0; i < attr->num_values; i ++)
5058 {
5059 ptr = attr->values[i].string.text;
5060 if (islower(*ptr & 255))
5061 {
5062 for (ptr ++; *ptr; ptr ++)
5063 {
5064 if (!islower(*ptr & 255) && !isdigit(*ptr & 255) &&
5065 *ptr != '+' && *ptr != '-' && *ptr != '.')
5066 break;
5067 }
5068 }
5069
5070 if (*ptr || ptr == attr->values[i].string.text)
5071 {
5072 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad uriScheme value \"%s\" - bad characters (RFC 8011 section 5.1.7)."), attr->name, attr->values[i].string.text);
5073 return (0);
5074 }
5075
5076 if ((ptr - attr->values[i].string.text) > (IPP_MAX_URISCHEME - 1))
5077 {
5078 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad uriScheme value \"%s\" - bad length %d (RFC 8011 section 5.1.7)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text));
5079 return (0);
5080 }
5081 }
5082 break;
5083
5084 case IPP_TAG_CHARSET :
5085 for (i = 0; i < attr->num_values; i ++)
5086 {
5087 for (ptr = attr->values[i].string.text; *ptr; ptr ++)
5088 {
5089 if (!isprint(*ptr & 255) || isupper(*ptr & 255) ||
5090 isspace(*ptr & 255))
5091 break;
5092 }
5093
5094 if (*ptr || ptr == attr->values[i].string.text)
5095 {
5096 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad charset value \"%s\" - bad characters (RFC 8011 section 5.1.8)."), attr->name, attr->values[i].string.text);
5097 return (0);
5098 }
5099
5100 if ((ptr - attr->values[i].string.text) > (IPP_MAX_CHARSET - 1))
5101 {
5102 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad charset value \"%s\" - bad length %d (RFC 8011 section 5.1.8)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text));
5103 return (0);
5104 }
5105 }
5106 break;
5107
5108 case IPP_TAG_LANGUAGE :
5109 /*
5110 * The following regular expression is derived from the ABNF for
5111 * language tags in RFC 4646. All I can say is that this is the
5112 * easiest way to check the values...
5113 */
5114
5115 if ((i = regcomp(&re,
5116 "^("
5117 "(([a-z]{2,3}(-[a-z][a-z][a-z]){0,3})|[a-z]{4,8})"
5118 /* language */
5119 "(-[a-z][a-z][a-z][a-z]){0,1}" /* script */
5120 "(-([a-z][a-z]|[0-9][0-9][0-9])){0,1}" /* region */
5121 "(-([a-z]{5,8}|[0-9][0-9][0-9]))*" /* variant */
5122 "(-[a-wy-z](-[a-z0-9]{2,8})+)*" /* extension */
5123 "(-x(-[a-z0-9]{1,8})+)*" /* privateuse */
5124 "|"
5125 "x(-[a-z0-9]{1,8})+" /* privateuse */
5126 "|"
5127 "[a-z]{1,3}(-[a-z][0-9]{2,8}){1,2}" /* grandfathered */
5128 ")$",
5129 REG_NOSUB | REG_EXTENDED)) != 0)
5130 {
5131 char temp[256]; /* Temporary error string */
5132
5133 regerror(i, &re, temp, sizeof(temp));
5134 ipp_set_error(IPP_STATUS_ERROR_INTERNAL, _("Unable to compile naturalLanguage regular expression: %s."), temp);
5135 return (0);
5136 }
5137
5138 for (i = 0; i < attr->num_values; i ++)
5139 {
5140 if (regexec(&re, attr->values[i].string.text, 0, NULL, 0))
5141 {
5142 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad naturalLanguage value \"%s\" - bad characters (RFC 8011 section 5.1.9)."), attr->name, attr->values[i].string.text);
5143 regfree(&re);
5144 return (0);
5145 }
5146
5147 if (strlen(attr->values[i].string.text) > (IPP_MAX_LANGUAGE - 1))
5148 {
5149 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad naturalLanguage value \"%s\" - bad length %d (RFC 8011 section 5.1.9)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text));
5150 regfree(&re);
5151 return (0);
5152 }
5153 }
5154
5155 regfree(&re);
5156 break;
5157
5158 case IPP_TAG_MIMETYPE :
5159 /*
5160 * The following regular expression is derived from the ABNF for
5161 * MIME media types in RFC 2045 and 4288. All I can say is that this is
5162 * the easiest way to check the values...
5163 */
5164
5165 if ((i = regcomp(&re,
5166 "^"
5167 "[-a-zA-Z0-9!#$&.+^_]{1,127}" /* type-name */
5168 "/"
5169 "[-a-zA-Z0-9!#$&.+^_]{1,127}" /* subtype-name */
5170 "(;[-a-zA-Z0-9!#$&.+^_]{1,127}=" /* parameter= */
5171 "([-a-zA-Z0-9!#$&.+^_]{1,127}|\"[^\"]*\"))*"
5172 /* value */
5173 "$",
5174 REG_NOSUB | REG_EXTENDED)) != 0)
5175 {
5176 char temp[256]; /* Temporary error string */
5177
5178 regerror(i, &re, temp, sizeof(temp));
5179 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("Unable to compile mimeMediaType regular expression: %s."), temp);
5180 return (0);
5181 }
5182
5183 for (i = 0; i < attr->num_values; i ++)
5184 {
5185 if (regexec(&re, attr->values[i].string.text, 0, NULL, 0))
5186 {
5187 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad mimeMediaType value \"%s\" - bad characters (RFC 8011 section 5.1.10)."), attr->name, attr->values[i].string.text);
5188 regfree(&re);
5189 return (0);
5190 }
5191
5192 if (strlen(attr->values[i].string.text) > (IPP_MAX_MIMETYPE - 1))
5193 {
5194 ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad mimeMediaType value \"%s\" - bad length %d (RFC 8011 section 5.1.10)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text));
5195 regfree(&re);
5196 return (0);
5197 }
5198 }
5199
5200 regfree(&re);
5201 break;
5202
5203 default :
5204 break;
5205 }
5206
5207 return (1);
5208 }
5209
5210
5211 /*
5212 * 'ippValidateAttributes()' - Validate all attributes in an IPP message.
5213 *
5214 * This function validates the contents of the IPP message, including each
5215 * attribute. Like @link ippValidateAttribute@, @link cupsLastErrorString@ is
5216 * set to a human-readable message on failure.
5217 *
5218 * @since CUPS 1.7/macOS 10.9@
5219 */
5220
5221 int /* O - 1 if valid, 0 otherwise */
5222 ippValidateAttributes(ipp_t *ipp) /* I - IPP message */
5223 {
5224 ipp_attribute_t *attr; /* Current attribute */
5225
5226
5227 if (!ipp)
5228 return (1);
5229
5230 for (attr = ipp->attrs; attr; attr = attr->next)
5231 if (!ippValidateAttribute(attr))
5232 return (0);
5233
5234 return (1);
5235 }
5236
5237
5238 /*
5239 * 'ippWrite()' - Write data for an IPP message to a HTTP connection.
5240 */
5241
5242 ipp_state_t /* O - Current state */
5243 ippWrite(http_t *http, /* I - HTTP connection */
5244 ipp_t *ipp) /* I - IPP data */
5245 {
5246 DEBUG_printf(("ippWrite(http=%p, ipp=%p)", (void *)http, (void *)ipp));
5247
5248 if (!http)
5249 return (IPP_STATE_ERROR);
5250
5251 return (ippWriteIO(http, (ipp_iocb_t)httpWrite2, http->blocking, NULL, ipp));
5252 }
5253
5254
5255 /*
5256 * 'ippWriteFile()' - Write data for an IPP message to a file.
5257 *
5258 * @since CUPS 1.1.19/macOS 10.3@
5259 */
5260
5261 ipp_state_t /* O - Current state */
5262 ippWriteFile(int fd, /* I - HTTP data */
5263 ipp_t *ipp) /* I - IPP data */
5264 {
5265 DEBUG_printf(("ippWriteFile(fd=%d, ipp=%p)", fd, (void *)ipp));
5266
5267 ipp->state = IPP_STATE_IDLE;
5268
5269 return (ippWriteIO(&fd, (ipp_iocb_t)ipp_write_file, 1, NULL, ipp));
5270 }
5271
5272
5273 /*
5274 * 'ippWriteIO()' - Write data for an IPP message.
5275 *
5276 * @since CUPS 1.2/macOS 10.5@
5277 */
5278
5279 ipp_state_t /* O - Current state */
5280 ippWriteIO(void *dst, /* I - Destination */
5281 ipp_iocb_t cb, /* I - Write callback function */
5282 int blocking, /* I - Use blocking IO? */
5283 ipp_t *parent, /* I - Parent IPP message */
5284 ipp_t *ipp) /* I - IPP data */
5285 {
5286 int i; /* Looping var */
5287 int n; /* Length of data */
5288 unsigned char *buffer, /* Data buffer */
5289 *bufptr; /* Pointer into buffer */
5290 ipp_attribute_t *attr; /* Current attribute */
5291 _ipp_value_t *value; /* Current value */
5292
5293
5294 DEBUG_printf(("ippWriteIO(dst=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)", (void *)dst, (void *)cb, blocking, (void *)parent, (void *)ipp));
5295
5296 if (!dst || !ipp)
5297 return (IPP_STATE_ERROR);
5298
5299 if ((buffer = (unsigned char *)_cupsBufferGet(IPP_BUF_SIZE)) == NULL)
5300 {
5301 DEBUG_puts("1ippWriteIO: Unable to get write buffer");
5302 return (IPP_STATE_ERROR);
5303 }
5304
5305 switch (ipp->state)
5306 {
5307 case IPP_STATE_IDLE :
5308 ipp->state ++; /* Avoid common problem... */
5309
5310 case IPP_STATE_HEADER :
5311 if (parent == NULL)
5312 {
5313 /*
5314 * Send the request header:
5315 *
5316 * Version = 2 bytes
5317 * Operation/Status Code = 2 bytes
5318 * Request ID = 4 bytes
5319 * Total = 8 bytes
5320 */
5321
5322 bufptr = buffer;
5323
5324 *bufptr++ = ipp->request.any.version[0];
5325 *bufptr++ = ipp->request.any.version[1];
5326 *bufptr++ = (ipp_uchar_t)(ipp->request.any.op_status >> 8);
5327 *bufptr++ = (ipp_uchar_t)ipp->request.any.op_status;
5328 *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 24);
5329 *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 16);
5330 *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 8);
5331 *bufptr++ = (ipp_uchar_t)ipp->request.any.request_id;
5332
5333 DEBUG_printf(("2ippWriteIO: version=%d.%d", buffer[0], buffer[1]));
5334 DEBUG_printf(("2ippWriteIO: op_status=%04x",
5335 ipp->request.any.op_status));
5336 DEBUG_printf(("2ippWriteIO: request_id=%d",
5337 ipp->request.any.request_id));
5338
5339 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5340 {
5341 DEBUG_puts("1ippWriteIO: Could not write IPP header...");
5342 _cupsBufferRelease((char *)buffer);
5343 return (IPP_STATE_ERROR);
5344 }
5345 }
5346
5347 /*
5348 * Reset the state engine to point to the first attribute
5349 * in the request/response, with no current group.
5350 */
5351
5352 ipp->state = IPP_STATE_ATTRIBUTE;
5353 ipp->current = ipp->attrs;
5354 ipp->curtag = IPP_TAG_ZERO;
5355
5356 DEBUG_printf(("1ippWriteIO: ipp->current=%p", (void *)ipp->current));
5357
5358 /*
5359 * If blocking is disabled, stop here...
5360 */
5361
5362 if (!blocking)
5363 break;
5364
5365 case IPP_STATE_ATTRIBUTE :
5366 while (ipp->current != NULL)
5367 {
5368 /*
5369 * Write this attribute...
5370 */
5371
5372 bufptr = buffer;
5373 attr = ipp->current;
5374
5375 ipp->current = ipp->current->next;
5376
5377 if (!parent)
5378 {
5379 if (ipp->curtag != attr->group_tag)
5380 {
5381 /*
5382 * Send a group tag byte...
5383 */
5384
5385 ipp->curtag = attr->group_tag;
5386
5387 if (attr->group_tag == IPP_TAG_ZERO)
5388 continue;
5389
5390 DEBUG_printf(("2ippWriteIO: wrote group tag=%x(%s)",
5391 attr->group_tag, ippTagString(attr->group_tag)));
5392 *bufptr++ = (ipp_uchar_t)attr->group_tag;
5393 }
5394 else if (attr->group_tag == IPP_TAG_ZERO)
5395 continue;
5396 }
5397
5398 DEBUG_printf(("1ippWriteIO: %s (%s%s)", attr->name,
5399 attr->num_values > 1 ? "1setOf " : "",
5400 ippTagString(attr->value_tag)));
5401
5402 /*
5403 * Write the attribute tag and name.
5404 *
5405 * The attribute name length does not include the trailing nul
5406 * character in the source string.
5407 *
5408 * Collection values (parent != NULL) are written differently...
5409 */
5410
5411 if (parent == NULL)
5412 {
5413 /*
5414 * Get the length of the attribute name, and make sure it won't
5415 * overflow the buffer...
5416 */
5417
5418 if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 8))
5419 {
5420 DEBUG_printf(("1ippWriteIO: Attribute name too long (%d)", n));
5421 _cupsBufferRelease((char *)buffer);
5422 return (IPP_STATE_ERROR);
5423 }
5424
5425 /*
5426 * Write the value tag, name length, and name string...
5427 */
5428
5429 DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)",
5430 attr->value_tag, ippTagString(attr->value_tag)));
5431 DEBUG_printf(("2ippWriteIO: writing name=%d,\"%s\"", n,
5432 attr->name));
5433
5434 if (attr->value_tag > 0xff)
5435 {
5436 *bufptr++ = IPP_TAG_EXTENSION;
5437 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 24);
5438 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 16);
5439 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 8);
5440 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5441 }
5442 else
5443 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5444
5445 *bufptr++ = (ipp_uchar_t)(n >> 8);
5446 *bufptr++ = (ipp_uchar_t)n;
5447 memcpy(bufptr, attr->name, (size_t)n);
5448 bufptr += n;
5449 }
5450 else
5451 {
5452 /*
5453 * Get the length of the attribute name, and make sure it won't
5454 * overflow the buffer...
5455 */
5456
5457 if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 12))
5458 {
5459 DEBUG_printf(("1ippWriteIO: Attribute name too long (%d)", n));
5460 _cupsBufferRelease((char *)buffer);
5461 return (IPP_STATE_ERROR);
5462 }
5463
5464 /*
5465 * Write the member name tag, name length, name string, value tag,
5466 * and empty name for the collection member attribute...
5467 */
5468
5469 DEBUG_printf(("2ippWriteIO: writing value tag=%x(memberName)",
5470 IPP_TAG_MEMBERNAME));
5471 DEBUG_printf(("2ippWriteIO: writing name=%d,\"%s\"", n,
5472 attr->name));
5473 DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)",
5474 attr->value_tag, ippTagString(attr->value_tag)));
5475 DEBUG_puts("2ippWriteIO: writing name=0,\"\"");
5476
5477 *bufptr++ = IPP_TAG_MEMBERNAME;
5478 *bufptr++ = 0;
5479 *bufptr++ = 0;
5480 *bufptr++ = (ipp_uchar_t)(n >> 8);
5481 *bufptr++ = (ipp_uchar_t)n;
5482 memcpy(bufptr, attr->name, (size_t)n);
5483 bufptr += n;
5484
5485 if (attr->value_tag > 0xff)
5486 {
5487 *bufptr++ = IPP_TAG_EXTENSION;
5488 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 24);
5489 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 16);
5490 *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 8);
5491 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5492 }
5493 else
5494 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5495
5496 *bufptr++ = 0;
5497 *bufptr++ = 0;
5498 }
5499
5500 /*
5501 * Now write the attribute value(s)...
5502 */
5503
5504 switch (attr->value_tag & ~IPP_TAG_CUPS_CONST)
5505 {
5506 case IPP_TAG_UNSUPPORTED_VALUE :
5507 case IPP_TAG_DEFAULT :
5508 case IPP_TAG_UNKNOWN :
5509 case IPP_TAG_NOVALUE :
5510 case IPP_TAG_NOTSETTABLE :
5511 case IPP_TAG_DELETEATTR :
5512 case IPP_TAG_ADMINDEFINE :
5513 *bufptr++ = 0;
5514 *bufptr++ = 0;
5515 break;
5516
5517 case IPP_TAG_INTEGER :
5518 case IPP_TAG_ENUM :
5519 for (i = 0, value = attr->values;
5520 i < attr->num_values;
5521 i ++, value ++)
5522 {
5523 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 9)
5524 {
5525 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5526 {
5527 DEBUG_puts("1ippWriteIO: Could not write IPP "
5528 "attribute...");
5529 _cupsBufferRelease((char *)buffer);
5530 return (IPP_STATE_ERROR);
5531 }
5532
5533 bufptr = buffer;
5534 }
5535
5536 if (i)
5537 {
5538 /*
5539 * Arrays and sets are done by sending additional
5540 * values with a zero-length name...
5541 */
5542
5543 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5544 *bufptr++ = 0;
5545 *bufptr++ = 0;
5546 }
5547
5548 /*
5549 * Integers and enumerations are both 4-byte signed
5550 * (twos-complement) values.
5551 *
5552 * Put the 2-byte length and 4-byte value into the buffer...
5553 */
5554
5555 *bufptr++ = 0;
5556 *bufptr++ = 4;
5557 *bufptr++ = (ipp_uchar_t)(value->integer >> 24);
5558 *bufptr++ = (ipp_uchar_t)(value->integer >> 16);
5559 *bufptr++ = (ipp_uchar_t)(value->integer >> 8);
5560 *bufptr++ = (ipp_uchar_t)value->integer;
5561 }
5562 break;
5563
5564 case IPP_TAG_BOOLEAN :
5565 for (i = 0, value = attr->values;
5566 i < attr->num_values;
5567 i ++, value ++)
5568 {
5569 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 6)
5570 {
5571 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5572 {
5573 DEBUG_puts("1ippWriteIO: Could not write IPP "
5574 "attribute...");
5575 _cupsBufferRelease((char *)buffer);
5576 return (IPP_STATE_ERROR);
5577 }
5578
5579 bufptr = buffer;
5580 }
5581
5582 if (i)
5583 {
5584 /*
5585 * Arrays and sets are done by sending additional
5586 * values with a zero-length name...
5587 */
5588
5589 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5590 *bufptr++ = 0;
5591 *bufptr++ = 0;
5592 }
5593
5594 /*
5595 * Boolean values are 1-byte; 0 = false, 1 = true.
5596 *
5597 * Put the 2-byte length and 1-byte value into the buffer...
5598 */
5599
5600 *bufptr++ = 0;
5601 *bufptr++ = 1;
5602 *bufptr++ = (ipp_uchar_t)value->boolean;
5603 }
5604 break;
5605
5606 case IPP_TAG_TEXT :
5607 case IPP_TAG_NAME :
5608 case IPP_TAG_KEYWORD :
5609 case IPP_TAG_URI :
5610 case IPP_TAG_URISCHEME :
5611 case IPP_TAG_CHARSET :
5612 case IPP_TAG_LANGUAGE :
5613 case IPP_TAG_MIMETYPE :
5614 for (i = 0, value = attr->values;
5615 i < attr->num_values;
5616 i ++, value ++)
5617 {
5618 if (i)
5619 {
5620 /*
5621 * Arrays and sets are done by sending additional
5622 * values with a zero-length name...
5623 */
5624
5625 DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)",
5626 attr->value_tag,
5627 ippTagString(attr->value_tag)));
5628 DEBUG_printf(("2ippWriteIO: writing name=0,\"\""));
5629
5630 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
5631 {
5632 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5633 {
5634 DEBUG_puts("1ippWriteIO: Could not write IPP "
5635 "attribute...");
5636 _cupsBufferRelease((char *)buffer);
5637 return (IPP_STATE_ERROR);
5638 }
5639
5640 bufptr = buffer;
5641 }
5642
5643 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5644 *bufptr++ = 0;
5645 *bufptr++ = 0;
5646 }
5647
5648 if (value->string.text != NULL)
5649 n = (int)strlen(value->string.text);
5650 else
5651 n = 0;
5652
5653 if (n > (IPP_BUF_SIZE - 2))
5654 {
5655 DEBUG_printf(("1ippWriteIO: String too long (%d)", n));
5656 _cupsBufferRelease((char *)buffer);
5657 return (IPP_STATE_ERROR);
5658 }
5659
5660 DEBUG_printf(("2ippWriteIO: writing string=%d,\"%s\"", n,
5661 value->string.text));
5662
5663 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
5664 {
5665 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5666 {
5667 DEBUG_puts("1ippWriteIO: Could not write IPP "
5668 "attribute...");
5669 _cupsBufferRelease((char *)buffer);
5670 return (IPP_STATE_ERROR);
5671 }
5672
5673 bufptr = buffer;
5674 }
5675
5676 /*
5677 * All simple strings consist of the 2-byte length and
5678 * character data without the trailing nul normally found
5679 * in C strings. Also, strings cannot be longer than IPP_MAX_LENGTH
5680 * bytes since the 2-byte length is a signed (twos-complement)
5681 * value.
5682 *
5683 * Put the 2-byte length and string characters in the buffer.
5684 */
5685
5686 *bufptr++ = (ipp_uchar_t)(n >> 8);
5687 *bufptr++ = (ipp_uchar_t)n;
5688
5689 if (n > 0)
5690 {
5691 memcpy(bufptr, value->string.text, (size_t)n);
5692 bufptr += n;
5693 }
5694 }
5695 break;
5696
5697 case IPP_TAG_DATE :
5698 for (i = 0, value = attr->values;
5699 i < attr->num_values;
5700 i ++, value ++)
5701 {
5702 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 16)
5703 {
5704 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5705 {
5706 DEBUG_puts("1ippWriteIO: Could not write IPP "
5707 "attribute...");
5708 _cupsBufferRelease((char *)buffer);
5709 return (IPP_STATE_ERROR);
5710 }
5711
5712 bufptr = buffer;
5713 }
5714
5715 if (i)
5716 {
5717 /*
5718 * Arrays and sets are done by sending additional
5719 * values with a zero-length name...
5720 */
5721
5722 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5723 *bufptr++ = 0;
5724 *bufptr++ = 0;
5725 }
5726
5727 /*
5728 * Date values consist of a 2-byte length and an
5729 * 11-byte date/time structure defined by RFC 1903.
5730 *
5731 * Put the 2-byte length and 11-byte date/time
5732 * structure in the buffer.
5733 */
5734
5735 *bufptr++ = 0;
5736 *bufptr++ = 11;
5737 memcpy(bufptr, value->date, 11);
5738 bufptr += 11;
5739 }
5740 break;
5741
5742 case IPP_TAG_RESOLUTION :
5743 for (i = 0, value = attr->values;
5744 i < attr->num_values;
5745 i ++, value ++)
5746 {
5747 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 14)
5748 {
5749 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5750 {
5751 DEBUG_puts("1ippWriteIO: Could not write IPP "
5752 "attribute...");
5753 _cupsBufferRelease((char *)buffer);
5754 return (IPP_STATE_ERROR);
5755 }
5756
5757 bufptr = buffer;
5758 }
5759
5760 if (i)
5761 {
5762 /*
5763 * Arrays and sets are done by sending additional
5764 * values with a zero-length name...
5765 */
5766
5767 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5768 *bufptr++ = 0;
5769 *bufptr++ = 0;
5770 }
5771
5772 /*
5773 * Resolution values consist of a 2-byte length,
5774 * 4-byte horizontal resolution value, 4-byte vertical
5775 * resolution value, and a 1-byte units value.
5776 *
5777 * Put the 2-byte length and resolution value data
5778 * into the buffer.
5779 */
5780
5781 *bufptr++ = 0;
5782 *bufptr++ = 9;
5783 *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 24);
5784 *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 16);
5785 *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 8);
5786 *bufptr++ = (ipp_uchar_t)value->resolution.xres;
5787 *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 24);
5788 *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 16);
5789 *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 8);
5790 *bufptr++ = (ipp_uchar_t)value->resolution.yres;
5791 *bufptr++ = (ipp_uchar_t)value->resolution.units;
5792 }
5793 break;
5794
5795 case IPP_TAG_RANGE :
5796 for (i = 0, value = attr->values;
5797 i < attr->num_values;
5798 i ++, value ++)
5799 {
5800 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 13)
5801 {
5802 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5803 {
5804 DEBUG_puts("1ippWriteIO: Could not write IPP "
5805 "attribute...");
5806 _cupsBufferRelease((char *)buffer);
5807 return (IPP_STATE_ERROR);
5808 }
5809
5810 bufptr = buffer;
5811 }
5812
5813 if (i)
5814 {
5815 /*
5816 * Arrays and sets are done by sending additional
5817 * values with a zero-length name...
5818 */
5819
5820 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5821 *bufptr++ = 0;
5822 *bufptr++ = 0;
5823 }
5824
5825 /*
5826 * Range values consist of a 2-byte length,
5827 * 4-byte lower value, and 4-byte upper value.
5828 *
5829 * Put the 2-byte length and range value data
5830 * into the buffer.
5831 */
5832
5833 *bufptr++ = 0;
5834 *bufptr++ = 8;
5835 *bufptr++ = (ipp_uchar_t)(value->range.lower >> 24);
5836 *bufptr++ = (ipp_uchar_t)(value->range.lower >> 16);
5837 *bufptr++ = (ipp_uchar_t)(value->range.lower >> 8);
5838 *bufptr++ = (ipp_uchar_t)value->range.lower;
5839 *bufptr++ = (ipp_uchar_t)(value->range.upper >> 24);
5840 *bufptr++ = (ipp_uchar_t)(value->range.upper >> 16);
5841 *bufptr++ = (ipp_uchar_t)(value->range.upper >> 8);
5842 *bufptr++ = (ipp_uchar_t)value->range.upper;
5843 }
5844 break;
5845
5846 case IPP_TAG_TEXTLANG :
5847 case IPP_TAG_NAMELANG :
5848 for (i = 0, value = attr->values;
5849 i < attr->num_values;
5850 i ++, value ++)
5851 {
5852 if (i)
5853 {
5854 /*
5855 * Arrays and sets are done by sending additional
5856 * values with a zero-length name...
5857 */
5858
5859 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
5860 {
5861 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5862 {
5863 DEBUG_puts("1ippWriteIO: Could not write IPP "
5864 "attribute...");
5865 _cupsBufferRelease((char *)buffer);
5866 return (IPP_STATE_ERROR);
5867 }
5868
5869 bufptr = buffer;
5870 }
5871
5872 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5873 *bufptr++ = 0;
5874 *bufptr++ = 0;
5875 }
5876
5877 /*
5878 * textWithLanguage and nameWithLanguage values consist
5879 * of a 2-byte length for both strings and their
5880 * individual lengths, a 2-byte length for the
5881 * character string, the character string without the
5882 * trailing nul, a 2-byte length for the character
5883 * set string, and the character set string without
5884 * the trailing nul.
5885 */
5886
5887 n = 4;
5888
5889 if (value->string.language != NULL)
5890 n += (int)strlen(value->string.language);
5891
5892 if (value->string.text != NULL)
5893 n += (int)strlen(value->string.text);
5894
5895 if (n > (IPP_BUF_SIZE - 2))
5896 {
5897 DEBUG_printf(("1ippWriteIO: text/nameWithLanguage value "
5898 "too long (%d)", n));
5899 _cupsBufferRelease((char *)buffer);
5900 return (IPP_STATE_ERROR);
5901 }
5902
5903 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
5904 {
5905 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5906 {
5907 DEBUG_puts("1ippWriteIO: Could not write IPP "
5908 "attribute...");
5909 _cupsBufferRelease((char *)buffer);
5910 return (IPP_STATE_ERROR);
5911 }
5912
5913 bufptr = buffer;
5914 }
5915
5916 /* Length of entire value */
5917 *bufptr++ = (ipp_uchar_t)(n >> 8);
5918 *bufptr++ = (ipp_uchar_t)n;
5919
5920 /* Length of language */
5921 if (value->string.language != NULL)
5922 n = (int)strlen(value->string.language);
5923 else
5924 n = 0;
5925
5926 *bufptr++ = (ipp_uchar_t)(n >> 8);
5927 *bufptr++ = (ipp_uchar_t)n;
5928
5929 /* Language */
5930 if (n > 0)
5931 {
5932 memcpy(bufptr, value->string.language, (size_t)n);
5933 bufptr += n;
5934 }
5935
5936 /* Length of text */
5937 if (value->string.text != NULL)
5938 n = (int)strlen(value->string.text);
5939 else
5940 n = 0;
5941
5942 *bufptr++ = (ipp_uchar_t)(n >> 8);
5943 *bufptr++ = (ipp_uchar_t)n;
5944
5945 /* Text */
5946 if (n > 0)
5947 {
5948 memcpy(bufptr, value->string.text, (size_t)n);
5949 bufptr += n;
5950 }
5951 }
5952 break;
5953
5954 case IPP_TAG_BEGIN_COLLECTION :
5955 for (i = 0, value = attr->values;
5956 i < attr->num_values;
5957 i ++, value ++)
5958 {
5959 /*
5960 * Collections are written with the begin-collection
5961 * tag first with a value of 0 length, followed by the
5962 * attributes in the collection, then the end-collection
5963 * value...
5964 */
5965
5966 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 5)
5967 {
5968 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5969 {
5970 DEBUG_puts("1ippWriteIO: Could not write IPP "
5971 "attribute...");
5972 _cupsBufferRelease((char *)buffer);
5973 return (IPP_STATE_ERROR);
5974 }
5975
5976 bufptr = buffer;
5977 }
5978
5979 if (i)
5980 {
5981 /*
5982 * Arrays and sets are done by sending additional
5983 * values with a zero-length name...
5984 */
5985
5986 *bufptr++ = (ipp_uchar_t)attr->value_tag;
5987 *bufptr++ = 0;
5988 *bufptr++ = 0;
5989 }
5990
5991 /*
5992 * Write a data length of 0 and flush the buffer...
5993 */
5994
5995 *bufptr++ = 0;
5996 *bufptr++ = 0;
5997
5998 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
5999 {
6000 DEBUG_puts("1ippWriteIO: Could not write IPP "
6001 "attribute...");
6002 _cupsBufferRelease((char *)buffer);
6003 return (IPP_STATE_ERROR);
6004 }
6005
6006 bufptr = buffer;
6007
6008 /*
6009 * Then write the collection attribute...
6010 */
6011
6012 value->collection->state = IPP_STATE_IDLE;
6013
6014 if (ippWriteIO(dst, cb, 1, ipp,
6015 value->collection) == IPP_STATE_ERROR)
6016 {
6017 DEBUG_puts("1ippWriteIO: Unable to write collection value");
6018 _cupsBufferRelease((char *)buffer);
6019 return (IPP_STATE_ERROR);
6020 }
6021 }
6022 break;
6023
6024 default :
6025 for (i = 0, value = attr->values;
6026 i < attr->num_values;
6027 i ++, value ++)
6028 {
6029 if (i)
6030 {
6031 /*
6032 * Arrays and sets are done by sending additional
6033 * values with a zero-length name...
6034 */
6035
6036 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
6037 {
6038 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
6039 {
6040 DEBUG_puts("1ippWriteIO: Could not write IPP "
6041 "attribute...");
6042 _cupsBufferRelease((char *)buffer);
6043 return (IPP_STATE_ERROR);
6044 }
6045
6046 bufptr = buffer;
6047 }
6048
6049 *bufptr++ = (ipp_uchar_t)attr->value_tag;
6050 *bufptr++ = 0;
6051 *bufptr++ = 0;
6052 }
6053
6054 /*
6055 * An unknown value might some new value that a
6056 * vendor has come up with. It consists of a
6057 * 2-byte length and the bytes in the unknown
6058 * value buffer.
6059 */
6060
6061 n = value->unknown.length;
6062
6063 if (n > (IPP_BUF_SIZE - 2))
6064 {
6065 DEBUG_printf(("1ippWriteIO: Data length too long (%d)",
6066 n));
6067 _cupsBufferRelease((char *)buffer);
6068 return (IPP_STATE_ERROR);
6069 }
6070
6071 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
6072 {
6073 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
6074 {
6075 DEBUG_puts("1ippWriteIO: Could not write IPP "
6076 "attribute...");
6077 _cupsBufferRelease((char *)buffer);
6078 return (IPP_STATE_ERROR);
6079 }
6080
6081 bufptr = buffer;
6082 }
6083
6084 /* Length of unknown value */
6085 *bufptr++ = (ipp_uchar_t)(n >> 8);
6086 *bufptr++ = (ipp_uchar_t)n;
6087
6088 /* Value */
6089 if (n > 0)
6090 {
6091 memcpy(bufptr, value->unknown.data, (size_t)n);
6092 bufptr += n;
6093 }
6094 }
6095 break;
6096 }
6097
6098 /*
6099 * Write the data out...
6100 */
6101
6102 if (bufptr > buffer)
6103 {
6104 if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0)
6105 {
6106 DEBUG_puts("1ippWriteIO: Could not write IPP attribute...");
6107 _cupsBufferRelease((char *)buffer);
6108 return (IPP_STATE_ERROR);
6109 }
6110
6111 DEBUG_printf(("2ippWriteIO: wrote %d bytes",
6112 (int)(bufptr - buffer)));
6113 }
6114
6115 /*
6116 * If blocking is disabled and we aren't at the end of the attribute
6117 * list, stop here...
6118 */
6119
6120 if (!blocking && ipp->current)
6121 break;
6122 }
6123
6124 if (ipp->current == NULL)
6125 {
6126 /*
6127 * Done with all of the attributes; add the end-of-attributes
6128 * tag or end-collection attribute...
6129 */
6130
6131 if (parent == NULL)
6132 {
6133 buffer[0] = IPP_TAG_END;
6134 n = 1;
6135 }
6136 else
6137 {
6138 buffer[0] = IPP_TAG_END_COLLECTION;
6139 buffer[1] = 0; /* empty name */
6140 buffer[2] = 0;
6141 buffer[3] = 0; /* empty value */
6142 buffer[4] = 0;
6143 n = 5;
6144 }
6145
6146 if ((*cb)(dst, buffer, (size_t)n) < 0)
6147 {
6148 DEBUG_puts("1ippWriteIO: Could not write IPP end-tag...");
6149 _cupsBufferRelease((char *)buffer);
6150 return (IPP_STATE_ERROR);
6151 }
6152
6153 ipp->state = IPP_STATE_DATA;
6154 }
6155 break;
6156
6157 case IPP_STATE_DATA :
6158 break;
6159
6160 default :
6161 break; /* anti-compiler-warning-code */
6162 }
6163
6164 _cupsBufferRelease((char *)buffer);
6165
6166 return (ipp->state);
6167 }
6168
6169
6170 /*
6171 * 'ipp_add_attr()' - Add a new attribute to the message.
6172 */
6173
6174 static ipp_attribute_t * /* O - New attribute */
6175 ipp_add_attr(ipp_t *ipp, /* I - IPP message */
6176 const char *name, /* I - Attribute name or NULL */
6177 ipp_tag_t group_tag, /* I - Group tag or IPP_TAG_ZERO */
6178 ipp_tag_t value_tag, /* I - Value tag or IPP_TAG_ZERO */
6179 int num_values) /* I - Number of values */
6180 {
6181 int alloc_values; /* Number of values to allocate */
6182 ipp_attribute_t *attr; /* New attribute */
6183
6184
6185 DEBUG_printf(("4ipp_add_attr(ipp=%p, name=\"%s\", group_tag=0x%x, value_tag=0x%x, num_values=%d)", (void *)ipp, name, group_tag, value_tag, num_values));
6186
6187 /*
6188 * Range check input...
6189 */
6190
6191 if (!ipp || num_values < 0)
6192 return (NULL);
6193
6194 /*
6195 * Allocate memory, rounding the allocation up as needed...
6196 */
6197
6198 if (num_values <= 1)
6199 alloc_values = 1;
6200 else
6201 alloc_values = (num_values + IPP_MAX_VALUES - 1) & ~(IPP_MAX_VALUES - 1);
6202
6203 attr = calloc(sizeof(ipp_attribute_t) +
6204 (size_t)(alloc_values - 1) * sizeof(_ipp_value_t), 1);
6205
6206 if (attr)
6207 {
6208 /*
6209 * Initialize attribute...
6210 */
6211
6212 DEBUG_printf(("4debug_alloc: %p %s %s%s (%d values)", (void *)attr, name, num_values > 1 ? "1setOf " : "", ippTagString(value_tag), num_values));
6213
6214 if (name)
6215 attr->name = _cupsStrAlloc(name);
6216
6217 attr->group_tag = group_tag;
6218 attr->value_tag = value_tag;
6219 attr->num_values = num_values;
6220
6221 /*
6222 * Add it to the end of the linked list...
6223 */
6224
6225 if (ipp->last)
6226 ipp->last->next = attr;
6227 else
6228 ipp->attrs = attr;
6229
6230 ipp->prev = ipp->last;
6231 ipp->last = ipp->current = attr;
6232 }
6233
6234 DEBUG_printf(("5ipp_add_attr: Returning %p", (void *)attr));
6235
6236 return (attr);
6237 }
6238
6239
6240 /*
6241 * 'ipp_free_values()' - Free attribute values.
6242 */
6243
6244 static void
6245 ipp_free_values(ipp_attribute_t *attr, /* I - Attribute to free values from */
6246 int element,/* I - First value to free */
6247 int count) /* I - Number of values to free */
6248 {
6249 int i; /* Looping var */
6250 _ipp_value_t *value; /* Current value */
6251
6252
6253 DEBUG_printf(("4ipp_free_values(attr=%p, element=%d, count=%d)", (void *)attr, element, count));
6254
6255 if (!(attr->value_tag & IPP_TAG_CUPS_CONST))
6256 {
6257 /*
6258 * Free values as needed...
6259 */
6260
6261 switch (attr->value_tag)
6262 {
6263 case IPP_TAG_TEXTLANG :
6264 case IPP_TAG_NAMELANG :
6265 if (element == 0 && count == attr->num_values &&
6266 attr->values[0].string.language)
6267 {
6268 _cupsStrFree(attr->values[0].string.language);
6269 attr->values[0].string.language = NULL;
6270 }
6271 /* Fall through to other string values */
6272
6273 case IPP_TAG_TEXT :
6274 case IPP_TAG_NAME :
6275 case IPP_TAG_RESERVED_STRING :
6276 case IPP_TAG_KEYWORD :
6277 case IPP_TAG_URI :
6278 case IPP_TAG_URISCHEME :
6279 case IPP_TAG_CHARSET :
6280 case IPP_TAG_LANGUAGE :
6281 case IPP_TAG_MIMETYPE :
6282 for (i = count, value = attr->values + element;
6283 i > 0;
6284 i --, value ++)
6285 {
6286 _cupsStrFree(value->string.text);
6287 value->string.text = NULL;
6288 }
6289 break;
6290
6291 case IPP_TAG_UNSUPPORTED_VALUE :
6292 case IPP_TAG_DEFAULT :
6293 case IPP_TAG_UNKNOWN :
6294 case IPP_TAG_NOVALUE :
6295 case IPP_TAG_NOTSETTABLE :
6296 case IPP_TAG_DELETEATTR :
6297 case IPP_TAG_ADMINDEFINE :
6298 case IPP_TAG_INTEGER :
6299 case IPP_TAG_ENUM :
6300 case IPP_TAG_BOOLEAN :
6301 case IPP_TAG_DATE :
6302 case IPP_TAG_RESOLUTION :
6303 case IPP_TAG_RANGE :
6304 break;
6305
6306 case IPP_TAG_BEGIN_COLLECTION :
6307 for (i = count, value = attr->values + element;
6308 i > 0;
6309 i --, value ++)
6310 {
6311 ippDelete(value->collection);
6312 value->collection = NULL;
6313 }
6314 break;
6315
6316 case IPP_TAG_STRING :
6317 default :
6318 for (i = count, value = attr->values + element;
6319 i > 0;
6320 i --, value ++)
6321 {
6322 if (value->unknown.data)
6323 {
6324 free(value->unknown.data);
6325 value->unknown.data = NULL;
6326 }
6327 }
6328 break;
6329 }
6330 }
6331
6332 /*
6333 * If we are not freeing values from the end, move the remaining values up...
6334 */
6335
6336 if ((element + count) < attr->num_values)
6337 memmove(attr->values + element, attr->values + element + count,
6338 (size_t)(attr->num_values - count - element) * sizeof(_ipp_value_t));
6339
6340 attr->num_values -= count;
6341 }
6342
6343
6344 /*
6345 * 'ipp_get_code()' - Convert a C locale/charset name into an IPP language/charset code.
6346 *
6347 * This typically converts strings of the form "ll_CC", "ll-REGION", and "CHARSET_NUMBER"
6348 * to "ll-cc", "ll-region", and "charset-number", respectively.
6349 */
6350
6351 static char * /* O - Language code string */
6352 ipp_get_code(const char *value, /* I - Locale/charset string */
6353 char *buffer, /* I - String buffer */
6354 size_t bufsize) /* I - Size of string buffer */
6355 {
6356 char *bufptr, /* Pointer into buffer */
6357 *bufend; /* End of buffer */
6358
6359
6360 /*
6361 * Convert values to lowercase and change _ to - as needed...
6362 */
6363
6364 for (bufptr = buffer, bufend = buffer + bufsize - 1;
6365 *value && bufptr < bufend;
6366 value ++)
6367 if (*value == '_')
6368 *bufptr++ = '-';
6369 else
6370 *bufptr++ = (char)_cups_tolower(*value);
6371
6372 *bufptr = '\0';
6373
6374 /*
6375 * Return the converted string...
6376 */
6377
6378 return (buffer);
6379 }
6380
6381
6382 /*
6383 * 'ipp_lang_code()' - Convert a C locale name into an IPP language code.
6384 *
6385 * This typically converts strings of the form "ll_CC" and "ll-REGION" to "ll-cc" and
6386 * "ll-region", respectively. It also converts the "C" (POSIX) locale to "en".
6387 */
6388
6389 static char * /* O - Language code string */
6390 ipp_lang_code(const char *locale, /* I - Locale string */
6391 char *buffer, /* I - String buffer */
6392 size_t bufsize) /* I - Size of string buffer */
6393 {
6394 /*
6395 * Map POSIX ("C") locale to generic English, otherwise convert the locale string as-is.
6396 */
6397
6398 if (!_cups_strcasecmp(locale, "c"))
6399 {
6400 strlcpy(buffer, "en", bufsize);
6401 return (buffer);
6402 }
6403 else
6404 return (ipp_get_code(locale, buffer, bufsize));
6405 }
6406
6407
6408 /*
6409 * 'ipp_length()' - Compute the length of an IPP message or collection value.
6410 */
6411
6412 static size_t /* O - Size of IPP message */
6413 ipp_length(ipp_t *ipp, /* I - IPP message or collection */
6414 int collection) /* I - 1 if a collection, 0 otherwise */
6415 {
6416 int i; /* Looping var */
6417 size_t bytes; /* Number of bytes */
6418 ipp_attribute_t *attr; /* Current attribute */
6419 ipp_tag_t group; /* Current group */
6420 _ipp_value_t *value; /* Current value */
6421
6422
6423 DEBUG_printf(("3ipp_length(ipp=%p, collection=%d)", (void *)ipp, collection));
6424
6425 if (!ipp)
6426 {
6427 DEBUG_puts("4ipp_length: Returning 0 bytes");
6428 return (0);
6429 }
6430
6431 /*
6432 * Start with 8 bytes for the IPP message header...
6433 */
6434
6435 bytes = collection ? 0 : 8;
6436
6437 /*
6438 * Then add the lengths of each attribute...
6439 */
6440
6441 group = IPP_TAG_ZERO;
6442
6443 for (attr = ipp->attrs; attr != NULL; attr = attr->next)
6444 {
6445 if (attr->group_tag != group && !collection)
6446 {
6447 group = attr->group_tag;
6448 if (group == IPP_TAG_ZERO)
6449 continue;
6450
6451 bytes ++; /* Group tag */
6452 }
6453
6454 if (!attr->name)
6455 continue;
6456
6457 DEBUG_printf(("5ipp_length: attr->name=\"%s\", attr->num_values=%d, "
6458 "bytes=" CUPS_LLFMT, attr->name, attr->num_values, CUPS_LLCAST bytes));
6459
6460 if ((attr->value_tag & ~IPP_TAG_CUPS_CONST) < IPP_TAG_EXTENSION)
6461 bytes += (size_t)attr->num_values;/* Value tag for each value */
6462 else
6463 bytes += (size_t)(5 * attr->num_values);
6464 /* Value tag for each value */
6465 bytes += (size_t)(2 * attr->num_values);
6466 /* Name lengths */
6467 bytes += strlen(attr->name); /* Name */
6468 bytes += (size_t)(2 * attr->num_values);
6469 /* Value lengths */
6470
6471 if (collection)
6472 bytes += 5; /* Add membername overhead */
6473
6474 switch (attr->value_tag & ~IPP_TAG_CUPS_CONST)
6475 {
6476 case IPP_TAG_UNSUPPORTED_VALUE :
6477 case IPP_TAG_DEFAULT :
6478 case IPP_TAG_UNKNOWN :
6479 case IPP_TAG_NOVALUE :
6480 case IPP_TAG_NOTSETTABLE :
6481 case IPP_TAG_DELETEATTR :
6482 case IPP_TAG_ADMINDEFINE :
6483 break;
6484
6485 case IPP_TAG_INTEGER :
6486 case IPP_TAG_ENUM :
6487 bytes += (size_t)(4 * attr->num_values);
6488 break;
6489
6490 case IPP_TAG_BOOLEAN :
6491 bytes += (size_t)attr->num_values;
6492 break;
6493
6494 case IPP_TAG_TEXT :
6495 case IPP_TAG_NAME :
6496 case IPP_TAG_KEYWORD :
6497 case IPP_TAG_URI :
6498 case IPP_TAG_URISCHEME :
6499 case IPP_TAG_CHARSET :
6500 case IPP_TAG_LANGUAGE :
6501 case IPP_TAG_MIMETYPE :
6502 for (i = 0, value = attr->values;
6503 i < attr->num_values;
6504 i ++, value ++)
6505 if (value->string.text)
6506 bytes += strlen(value->string.text);
6507 break;
6508
6509 case IPP_TAG_DATE :
6510 bytes += (size_t)(11 * attr->num_values);
6511 break;
6512
6513 case IPP_TAG_RESOLUTION :
6514 bytes += (size_t)(9 * attr->num_values);
6515 break;
6516
6517 case IPP_TAG_RANGE :
6518 bytes += (size_t)(8 * attr->num_values);
6519 break;
6520
6521 case IPP_TAG_TEXTLANG :
6522 case IPP_TAG_NAMELANG :
6523 bytes += (size_t)(4 * attr->num_values);
6524 /* Charset + text length */
6525
6526 for (i = 0, value = attr->values;
6527 i < attr->num_values;
6528 i ++, value ++)
6529 {
6530 if (value->string.language)
6531 bytes += strlen(value->string.language);
6532
6533 if (value->string.text)
6534 bytes += strlen(value->string.text);
6535 }
6536 break;
6537
6538 case IPP_TAG_BEGIN_COLLECTION :
6539 for (i = 0, value = attr->values;
6540 i < attr->num_values;
6541 i ++, value ++)
6542 bytes += ipp_length(value->collection, 1);
6543 break;
6544
6545 default :
6546 for (i = 0, value = attr->values;
6547 i < attr->num_values;
6548 i ++, value ++)
6549 bytes += (size_t)value->unknown.length;
6550 break;
6551 }
6552 }
6553
6554 /*
6555 * Finally, add 1 byte for the "end of attributes" tag or 5 bytes
6556 * for the "end of collection" tag and return...
6557 */
6558
6559 if (collection)
6560 bytes += 5;
6561 else
6562 bytes ++;
6563
6564 DEBUG_printf(("4ipp_length: Returning " CUPS_LLFMT " bytes", CUPS_LLCAST bytes));
6565
6566 return (bytes);
6567 }
6568
6569
6570 /*
6571 * 'ipp_read_http()' - Semi-blocking read on a HTTP connection...
6572 */
6573
6574 static ssize_t /* O - Number of bytes read */
6575 ipp_read_http(http_t *http, /* I - Client connection */
6576 ipp_uchar_t *buffer, /* O - Buffer for data */
6577 size_t length) /* I - Total length */
6578 {
6579 ssize_t tbytes, /* Total bytes read */
6580 bytes; /* Bytes read this pass */
6581
6582
6583 DEBUG_printf(("7ipp_read_http(http=%p, buffer=%p, length=%d)", (void *)http, (void *)buffer, (int)length));
6584
6585 /*
6586 * Loop until all bytes are read...
6587 */
6588
6589 for (tbytes = 0, bytes = 0;
6590 tbytes < (int)length;
6591 tbytes += bytes, buffer += bytes)
6592 {
6593 DEBUG_printf(("9ipp_read_http: tbytes=" CUPS_LLFMT ", http->state=%d", CUPS_LLCAST tbytes, http->state));
6594
6595 if (http->state == HTTP_STATE_WAITING)
6596 break;
6597
6598 if (http->used == 0 && !http->blocking)
6599 {
6600 /*
6601 * Wait up to 10 seconds for more data on non-blocking sockets...
6602 */
6603
6604 if (!httpWait(http, 10000))
6605 {
6606 /*
6607 * Signal no data...
6608 */
6609
6610 bytes = -1;
6611 break;
6612 }
6613 }
6614 else if (http->used == 0 && http->timeout_value > 0)
6615 {
6616 /*
6617 * Wait up to timeout seconds for more data on blocking sockets...
6618 */
6619
6620 if (!httpWait(http, (int)(1000 * http->timeout_value)))
6621 {
6622 /*
6623 * Signal no data...
6624 */
6625
6626 bytes = -1;
6627 break;
6628 }
6629 }
6630
6631 if ((bytes = httpRead2(http, (char *)buffer, length - (size_t)tbytes)) < 0)
6632 {
6633 #ifdef _WIN32
6634 break;
6635 #else
6636 if (errno != EAGAIN && errno != EINTR)
6637 break;
6638
6639 bytes = 0;
6640 #endif /* _WIN32 */
6641 }
6642 else if (bytes == 0)
6643 break;
6644 }
6645
6646 /*
6647 * Return the number of bytes read...
6648 */
6649
6650 if (tbytes == 0 && bytes < 0)
6651 tbytes = -1;
6652
6653 DEBUG_printf(("8ipp_read_http: Returning " CUPS_LLFMT " bytes", CUPS_LLCAST tbytes));
6654
6655 return (tbytes);
6656 }
6657
6658
6659 /*
6660 * 'ipp_read_file()' - Read IPP data from a file.
6661 */
6662
6663 static ssize_t /* O - Number of bytes read */
6664 ipp_read_file(int *fd, /* I - File descriptor */
6665 ipp_uchar_t *buffer, /* O - Read buffer */
6666 size_t length) /* I - Number of bytes to read */
6667 {
6668 #ifdef _WIN32
6669 return ((ssize_t)read(*fd, buffer, (unsigned)length));
6670 #else
6671 return (read(*fd, buffer, length));
6672 #endif /* _WIN32 */
6673 }
6674
6675
6676 /*
6677 * 'ipp_set_error()' - Set a formatted, localized error string.
6678 */
6679
6680 static void
6681 ipp_set_error(ipp_status_t status, /* I - Status code */
6682 const char *format, /* I - Printf-style error string */
6683 ...) /* I - Additional arguments as needed */
6684 {
6685 va_list ap; /* Pointer to additional args */
6686 char buffer[2048]; /* Message buffer */
6687 cups_lang_t *lang = cupsLangDefault();
6688 /* Current language */
6689
6690
6691 va_start(ap, format);
6692 vsnprintf(buffer, sizeof(buffer), _cupsLangString(lang, format), ap);
6693 va_end(ap);
6694
6695 _cupsSetError(status, buffer, 0);
6696 }
6697
6698
6699 /*
6700 * 'ipp_set_value()' - Get the value element from an attribute, expanding it as
6701 * needed.
6702 */
6703
6704 static _ipp_value_t * /* O - IPP value element or NULL on error */
6705 ipp_set_value(ipp_t *ipp, /* IO - IPP message */
6706 ipp_attribute_t **attr, /* IO - IPP attribute */
6707 int element) /* I - Value number (0-based) */
6708 {
6709 ipp_attribute_t *temp, /* New attribute pointer */
6710 *current, /* Current attribute in list */
6711 *prev; /* Previous attribute in list */
6712 int alloc_values; /* Allocated values */
6713
6714
6715 /*
6716 * If we are setting an existing value element, return it...
6717 */
6718
6719 temp = *attr;
6720
6721 if (temp->num_values <= 1)
6722 alloc_values = 1;
6723 else
6724 alloc_values = (temp->num_values + IPP_MAX_VALUES - 1) &
6725 ~(IPP_MAX_VALUES - 1);
6726
6727 if (element < alloc_values)
6728 {
6729 if (element >= temp->num_values)
6730 temp->num_values = element + 1;
6731
6732 return (temp->values + element);
6733 }
6734
6735 /*
6736 * Otherwise re-allocate the attribute - we allocate in groups of IPP_MAX_VALUE
6737 * values when num_values > 1.
6738 */
6739
6740 if (alloc_values < IPP_MAX_VALUES)
6741 alloc_values = IPP_MAX_VALUES;
6742 else
6743 alloc_values += IPP_MAX_VALUES;
6744
6745 DEBUG_printf(("4ipp_set_value: Reallocating for up to %d values.",
6746 alloc_values));
6747
6748 /*
6749 * Reallocate memory...
6750 */
6751
6752 if ((temp = realloc(temp, sizeof(ipp_attribute_t) + (size_t)(alloc_values - 1) * sizeof(_ipp_value_t))) == NULL)
6753 {
6754 _cupsSetHTTPError(HTTP_STATUS_ERROR);
6755 DEBUG_puts("4ipp_set_value: Unable to resize attribute.");
6756 return (NULL);
6757 }
6758
6759 /*
6760 * Zero the new memory...
6761 */
6762
6763 memset(temp->values + temp->num_values, 0, (size_t)(alloc_values - temp->num_values) * sizeof(_ipp_value_t));
6764
6765 if (temp != *attr)
6766 {
6767 /*
6768 * Reset pointers in the list...
6769 */
6770
6771 #ifndef __clang_analyzer__
6772 DEBUG_printf(("4debug_free: %p %s", (void *)*attr, temp->name));
6773 #endif /* !__clang_analyzer__ */
6774 DEBUG_printf(("4debug_alloc: %p %s %s%s (%d)", (void *)temp, temp->name, temp->num_values > 1 ? "1setOf " : "", ippTagString(temp->value_tag), temp->num_values));
6775
6776 if (ipp->current == *attr && ipp->prev)
6777 {
6778 /*
6779 * Use current "previous" pointer...
6780 */
6781
6782 prev = ipp->prev;
6783 }
6784 else
6785 {
6786 /*
6787 * Find this attribute in the linked list...
6788 */
6789
6790 for (prev = NULL, current = ipp->attrs;
6791 current && current != *attr;
6792 prev = current, current = current->next);
6793
6794 if (!current)
6795 {
6796 /*
6797 * This is a serious error!
6798 */
6799
6800 *attr = temp;
6801 _cupsSetError(IPP_STATUS_ERROR_INTERNAL,
6802 _("IPP attribute is not a member of the message."), 1);
6803 DEBUG_puts("4ipp_set_value: Unable to find attribute in message.");
6804 return (NULL);
6805 }
6806 }
6807
6808 if (prev)
6809 prev->next = temp;
6810 else
6811 ipp->attrs = temp;
6812
6813 ipp->current = temp;
6814 ipp->prev = prev;
6815
6816 if (ipp->last == *attr)
6817 ipp->last = temp;
6818
6819 *attr = temp;
6820 }
6821
6822 /*
6823 * Return the value element...
6824 */
6825
6826 if (element >= temp->num_values)
6827 temp->num_values = element + 1;
6828
6829 return (temp->values + element);
6830 }
6831
6832
6833 /*
6834 * 'ipp_write_file()' - Write IPP data to a file.
6835 */
6836
6837 static ssize_t /* O - Number of bytes written */
6838 ipp_write_file(int *fd, /* I - File descriptor */
6839 ipp_uchar_t *buffer, /* I - Data to write */
6840 size_t length) /* I - Number of bytes to write */
6841 {
6842 #ifdef _WIN32
6843 return ((ssize_t)write(*fd, buffer, (unsigned)length));
6844 #else
6845 return (write(*fd, buffer, length));
6846 #endif /* _WIN32 */
6847 }
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