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Merge changes from CUPS 1.4svn-r8329.
[thirdparty/cups.git] / cups / ipp.c
1 /*
2 * "$Id: ipp.c 7847 2008-08-19 04:22:14Z mike $"
3 *
4 * Internet Printing Protocol support functions for the Common UNIX
5 * Printing System (CUPS).
6 *
7 * Copyright 2007-2009 by Apple Inc.
8 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
9 *
10 * These coded instructions, statements, and computer programs are the
11 * property of Apple Inc. and are protected by Federal copyright
12 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
13 * which should have been included with this file. If this file is
14 * file is missing or damaged, see the license at "http://www.cups.org/".
15 *
16 * This file is subject to the Apple OS-Developed Software exception.
17 *
18 * Contents:
19 *
20 * ippAddBoolean() - Add a boolean attribute to an IPP message.
21 * ippAddBooleans() - Add an array of boolean values.
22 * ippAddDate() - Add a date attribute to an IPP message.
23 * ippAddInteger() - Add a integer attribute to an IPP message.
24 * ippAddIntegers() - Add an array of integer values.
25 * ippAddOctetString() - Add an octetString value to an IPP message.
26 * ippAddString() - Add a language-encoded string to an IPP message.
27 * ippAddStrings() - Add language-encoded strings to an IPP message.
28 * ippAddRange() - Add a range of values to an IPP message.
29 * ippAddRanges() - Add ranges of values to an IPP message.
30 * ippAddResolution() - Add a resolution value to an IPP message.
31 * ippAddResolutions() - Add resolution values to an IPP message.
32 * ippAddSeparator() - Add a group separator to an IPP message.
33 * ippDateToTime() - Convert from RFC 1903 Date/Time format to
34 * UNIX time in seconds.
35 * ippDelete() - Delete an IPP message.
36 * ippDeleteAttribute() - Delete a single attribute in an IPP message.
37 * ippFindAttribute() - Find a named attribute in a request...
38 * ippFindNextAttribute() - Find the next named attribute in a request...
39 * ippLength() - Compute the length of an IPP message.
40 * ippNew() - Allocate a new IPP message.
41 * ippNewRequest() - Allocate a new IPP message.
42 * ippRead() - Read data for an IPP message from a HTTP
43 * connection.
44 * ippReadFile() - Read data for an IPP message from a file.
45 * ippReadIO() - Read data for an IPP message.
46 * ippTimeToDate() - Convert from UNIX time to RFC 1903 format.
47 * ippWrite() - Write data for an IPP message to a HTTP
48 * connection.
49 * ippWriteFile() - Write data for an IPP message to a file.
50 * ippWriteIO() - Write data for an IPP message.
51 * _ippAddAttr() - Add a new attribute to the request.
52 * _ippFreeAttr() - Free an attribute.
53 * ipp_length() - Compute the length of an IPP message or
54 * collection value.
55 * ipp_read_http() - Semi-blocking read on a HTTP connection...
56 * ipp_read_file() - Read IPP data from a file.
57 * ipp_write_file() - Write IPP data to a file.
58 */
59
60 /*
61 * Include necessary headers...
62 */
63
64 #include "http-private.h"
65 #include "globals.h"
66 #include "debug.h"
67 #include <stdlib.h>
68 #include <errno.h>
69 #ifdef WIN32
70 # include <io.h>
71 #endif /* WIN32 */
72
73
74 /*
75 * Local functions...
76 */
77
78 static unsigned char *ipp_buffer_get(void);
79 static void ipp_buffer_release(unsigned char *b);
80 static size_t ipp_length(ipp_t *ipp, int collection);
81 static ssize_t ipp_read_http(http_t *http, ipp_uchar_t *buffer,
82 size_t length);
83 static ssize_t ipp_read_file(int *fd, ipp_uchar_t *buffer,
84 size_t length);
85 static ssize_t ipp_write_file(int *fd, ipp_uchar_t *buffer,
86 size_t length);
87
88
89 /*
90 * 'ippAddBoolean()' - Add a boolean attribute to an IPP message.
91 */
92
93 ipp_attribute_t * /* O - New attribute */
94 ippAddBoolean(ipp_t *ipp, /* I - IPP message */
95 ipp_tag_t group, /* I - IPP group */
96 const char *name, /* I - Name of attribute */
97 char value) /* I - Value of attribute */
98 {
99 ipp_attribute_t *attr; /* New attribute */
100
101
102 DEBUG_printf(("ippAddBoolean(ipp=%p, group=%02x(%s), name=\"%s\", value=%d)\n",
103 ipp, group, ippTagString(group), name, value));
104
105 if (!ipp || !name)
106 return (NULL);
107
108 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
109 return (NULL);
110
111 attr->name = _cupsStrAlloc(name);
112 attr->group_tag = group;
113 attr->value_tag = IPP_TAG_BOOLEAN;
114 attr->values[0].boolean = value;
115
116 return (attr);
117 }
118
119
120 /*
121 * 'ippAddBooleans()' - Add an array of boolean values.
122 */
123
124 ipp_attribute_t * /* O - New attribute */
125 ippAddBooleans(ipp_t *ipp, /* I - IPP message */
126 ipp_tag_t group, /* I - IPP group */
127 const char *name, /* I - Name of attribute */
128 int num_values, /* I - Number of values */
129 const char *values) /* I - Values */
130 {
131 int i; /* Looping var */
132 ipp_attribute_t *attr; /* New attribute */
133 ipp_value_t *value; /* Current value */
134
135
136 DEBUG_printf(("ippAddBooleans(ipp=%p, group=%02x(%s), name=\"%s\", "
137 "num_values=%d, values=%p)\n", ipp, group, ippTagString(group),
138 name, num_values, values));
139
140 if (!ipp || !name || num_values < 1)
141 return (NULL);
142
143 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
144 return (NULL);
145
146 attr->name = _cupsStrAlloc(name);
147 attr->group_tag = group;
148 attr->value_tag = IPP_TAG_BOOLEAN;
149
150 if (values != NULL)
151 for (i = 0, value = attr->values;
152 i < num_values;
153 i ++, value ++)
154 value->boolean = values[i];
155
156 return (attr);
157 }
158
159
160 /*
161 * 'ippAddCollection()' - Add a collection value.
162 *
163 * @since CUPS 1.1.19/Mac OS X 10.3@
164 */
165
166 ipp_attribute_t * /* O - New attribute */
167 ippAddCollection(ipp_t *ipp, /* I - IPP message */
168 ipp_tag_t group, /* I - IPP group */
169 const char *name, /* I - Name of attribute */
170 ipp_t *value) /* I - Value */
171 {
172 ipp_attribute_t *attr; /* New attribute */
173
174
175 DEBUG_printf(("ippAddCollection(ipp=%p, group=%02x(%s), name=\"%s\", "
176 "value=%p)\n", ipp, group, ippTagString(group), name, value));
177
178 if (!ipp || !name)
179 return (NULL);
180
181 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
182 return (NULL);
183
184 attr->name = _cupsStrAlloc(name);
185 attr->group_tag = group;
186 attr->value_tag = IPP_TAG_BEGIN_COLLECTION;
187 attr->values[0].collection = value;
188
189 return (attr);
190 }
191
192
193 /*
194 * 'ippAddCollections()' - Add an array of collection values.
195 *
196 * @since CUPS 1.1.19/Mac OS X 10.3@
197 */
198
199 ipp_attribute_t * /* O - New attribute */
200 ippAddCollections(
201 ipp_t *ipp, /* I - IPP message */
202 ipp_tag_t group, /* I - IPP group */
203 const char *name, /* I - Name of attribute */
204 int num_values, /* I - Number of values */
205 const ipp_t **values) /* I - Values */
206 {
207 int i; /* Looping var */
208 ipp_attribute_t *attr; /* New attribute */
209 ipp_value_t *value; /* Current value */
210
211
212 DEBUG_printf(("ippAddCollections(ipp=%p, group=%02x(%s), name=\"%s\", "
213 "num_values=%d, values=%p)\n", ipp, group, ippTagString(group),
214 name, num_values, values));
215
216 if (!ipp || !name || num_values < 1)
217 return (NULL);
218
219 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
220 return (NULL);
221
222 attr->name = _cupsStrAlloc(name);
223 attr->group_tag = group;
224 attr->value_tag = IPP_TAG_BEGIN_COLLECTION;
225
226 if (values != NULL)
227 for (i = 0, value = attr->values;
228 i < num_values;
229 i ++, value ++)
230 value->collection = (ipp_t *)values[i];
231
232 return (attr);
233 }
234
235
236 /*
237 * 'ippAddDate()' - Add a date attribute to an IPP message.
238 */
239
240 ipp_attribute_t * /* O - New attribute */
241 ippAddDate(ipp_t *ipp, /* I - IPP message */
242 ipp_tag_t group, /* I - IPP group */
243 const char *name, /* I - Name of attribute */
244 const ipp_uchar_t *value) /* I - Value */
245 {
246 ipp_attribute_t *attr; /* New attribute */
247
248
249 DEBUG_printf(("ippAddDate(ipp=%p, group=%02x(%s), name=\"%s\", value=%p)\n",
250 ipp, group, ippTagString(group), name, value));
251
252 if (!ipp || !name || !value)
253 return (NULL);
254
255 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
256 return (NULL);
257
258 attr->name = _cupsStrAlloc(name);
259 attr->group_tag = group;
260 attr->value_tag = IPP_TAG_DATE;
261 memcpy(attr->values[0].date, value, 11);
262
263 return (attr);
264 }
265
266
267 /*
268 * 'ippAddInteger()' - Add a integer attribute to an IPP message.
269 */
270
271 ipp_attribute_t * /* O - New attribute */
272 ippAddInteger(ipp_t *ipp, /* I - IPP message */
273 ipp_tag_t group, /* I - IPP group */
274 ipp_tag_t type, /* I - Type of attribute */
275 const char *name, /* I - Name of attribute */
276 int value) /* I - Value of attribute */
277 {
278 ipp_attribute_t *attr; /* New attribute */
279
280
281 DEBUG_printf(("ippAddInteger(ipp=%p, group=%02x(%s), type=%02x(%s), "
282 "name=\"%s\", value=%d)\n", ipp, group, ippTagString(group),
283 type, ippTagString(type), name, value));
284
285 if (!ipp || !name)
286 return (NULL);
287
288 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
289 return (NULL);
290
291 attr->name = _cupsStrAlloc(name);
292 attr->group_tag = group;
293 attr->value_tag = type;
294 attr->values[0].integer = value;
295
296 return (attr);
297 }
298
299
300 /*
301 * 'ippAddIntegers()' - Add an array of integer values.
302 */
303
304 ipp_attribute_t * /* O - New attribute */
305 ippAddIntegers(ipp_t *ipp, /* I - IPP message */
306 ipp_tag_t group, /* I - IPP group */
307 ipp_tag_t type, /* I - Type of attribute */
308 const char *name, /* I - Name of attribute */
309 int num_values, /* I - Number of values */
310 const int *values) /* I - Values */
311 {
312 int i; /* Looping var */
313 ipp_attribute_t *attr; /* New attribute */
314 ipp_value_t *value; /* Current value */
315
316
317 DEBUG_printf(("ippAddIntegers(ipp=%p, group=%02x(%s), type=%02x(%s), "
318 "name=\"%s\", num_values=%d, values=%p)\n", ipp,
319 group, ippTagString(group), type, ippTagString(type), name,
320 num_values, values));
321
322 if (!ipp || !name || num_values < 1)
323 return (NULL);
324
325 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
326 return (NULL);
327
328 attr->name = _cupsStrAlloc(name);
329 attr->group_tag = group;
330 attr->value_tag = type;
331
332 if (values != NULL)
333 for (i = 0, value = attr->values;
334 i < num_values;
335 i ++, value ++)
336 value->integer = values[i];
337
338 return (attr);
339 }
340
341
342 /*
343 * 'ippAddOctetString()' - Add an octetString value to an IPP message.
344 *
345 * @since CUPS 1.2/Mac OS X 10.5@
346 */
347
348 ipp_attribute_t * /* O - New attribute */
349 ippAddOctetString(ipp_t *ipp, /* I - IPP message */
350 ipp_tag_t group, /* I - IPP group */
351 const char *name, /* I - Name of attribute */
352 const void *data, /* I - octetString data */
353 int datalen) /* I - Length of data in bytes */
354 {
355 ipp_attribute_t *attr; /* New attribute */
356
357
358 if (ipp == NULL || name == NULL)
359 return (NULL);
360
361 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
362 return (NULL);
363
364 /*
365 * Initialize the attribute data...
366 */
367
368 attr->name = _cupsStrAlloc(name);
369 attr->group_tag = group;
370 attr->value_tag = IPP_TAG_STRING;
371 attr->values[0].unknown.length = datalen;
372
373 if (data)
374 {
375 if ((attr->values[0].unknown.data = malloc(datalen)) == NULL)
376 {
377 ippDeleteAttribute(ipp, attr);
378 return (NULL);
379 }
380
381 memcpy(attr->values[0].unknown.data, data, datalen);
382 }
383
384 /*
385 * Return the new attribute...
386 */
387
388 return (attr);
389 }
390
391
392 /*
393 * 'ippAddString()' - Add a language-encoded string to an IPP message.
394 */
395
396 ipp_attribute_t * /* O - New attribute */
397 ippAddString(ipp_t *ipp, /* I - IPP message */
398 ipp_tag_t group, /* I - IPP group */
399 ipp_tag_t type, /* I - Type of attribute */
400 const char *name, /* I - Name of attribute */
401 const char *charset, /* I - Character set */
402 const char *value) /* I - Value */
403 {
404 ipp_attribute_t *attr; /* New attribute */
405 char buffer[1024], /* Language/charset value buffer */
406 *bufptr; /* Pointer into buffer */
407
408
409 DEBUG_printf(("ippAddString(ipp=%p, group=%02x(%s), type=%02x(%s), "
410 "name=\"%s\", charset=\"%s\", value=\"%s\")\n", ipp,
411 group, ippTagString(group), type, ippTagString(type), name,
412 charset, value));
413
414 if (!ipp || !name)
415 return (NULL);
416
417 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
418 return (NULL);
419
420 /*
421 * Force value to be English for the POSIX locale...
422 */
423
424 if (type == IPP_TAG_LANGUAGE && !strcasecmp(value, "C"))
425 value = "en";
426
427 /*
428 * Convert language values to lowercase and change _ to - as needed...
429 */
430
431 if ((type == IPP_TAG_LANGUAGE || type == IPP_TAG_CHARSET) && value)
432 {
433 strlcpy(buffer, value, sizeof(buffer));
434 value = buffer;
435
436 for (bufptr = buffer; *bufptr; bufptr ++)
437 if (*bufptr == '_')
438 *bufptr = '-';
439 else
440 *bufptr = tolower(*bufptr & 255);
441 }
442
443 /*
444 * Initialize the attribute data...
445 */
446
447 attr->name = _cupsStrAlloc(name);
448 attr->group_tag = group;
449 attr->value_tag = type;
450 attr->values[0].string.charset = ((int)type & IPP_TAG_COPY) ? (char *)charset :
451 charset ? _cupsStrAlloc(charset) : NULL;
452 attr->values[0].string.text = ((int)type & IPP_TAG_COPY) ? (char *)value :
453 value ? _cupsStrAlloc(value) : NULL;
454
455 return (attr);
456 }
457
458
459 /*
460 * 'ippAddStrings()' - Add language-encoded strings to an IPP message.
461 */
462
463 ipp_attribute_t * /* O - New attribute */
464 ippAddStrings(
465 ipp_t *ipp, /* I - IPP message */
466 ipp_tag_t group, /* I - IPP group */
467 ipp_tag_t type, /* I - Type of attribute */
468 const char *name, /* I - Name of attribute */
469 int num_values, /* I - Number of values */
470 const char *charset, /* I - Character set */
471 const char * const *values) /* I - Values */
472 {
473 int i; /* Looping var */
474 ipp_attribute_t *attr; /* New attribute */
475 ipp_value_t *value; /* Current value */
476
477
478 DEBUG_printf(("ippAddStrings(ipp=%p, group=%02x(%s), type=%02x(%s), "
479 "name=\"%s\", num_values=%d, charset=\"%s\", values=%p)\n", ipp,
480 group, ippTagString(group), type, ippTagString(type), name,
481 num_values, charset, values));
482
483 if (!ipp || !name || num_values < 1)
484 return (NULL);
485
486 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
487 return (NULL);
488
489 /*
490 * Initialize the attribute data...
491 */
492
493 attr->name = _cupsStrAlloc(name);
494 attr->group_tag = group;
495 attr->value_tag = type;
496
497 for (i = 0, value = attr->values;
498 i < num_values;
499 i ++, value ++)
500 {
501 if (i == 0)
502 value->string.charset = ((int)type & IPP_TAG_COPY) ? (char *)charset :
503 charset ? _cupsStrAlloc(charset) : NULL;
504 else
505 value->string.charset = attr->values[0].string.charset;
506
507 if (values != NULL)
508 {
509 /*
510 * Force language to be English for the POSIX locale...
511 */
512
513 if (type == IPP_TAG_LANGUAGE && !strcasecmp(values[i], "C"))
514 value->string.text = ((int)type & IPP_TAG_COPY) ? "en" :
515 _cupsStrAlloc("en");
516 else
517 value->string.text = ((int)type & IPP_TAG_COPY) ? (char *)values[i] :
518 _cupsStrAlloc(values[i]);
519 }
520 }
521
522 return (attr);
523 }
524
525
526 /*
527 * 'ippAddRange()' - Add a range of values to an IPP message.
528 */
529
530 ipp_attribute_t * /* O - New attribute */
531 ippAddRange(ipp_t *ipp, /* I - IPP message */
532 ipp_tag_t group, /* I - IPP group */
533 const char *name, /* I - Name of attribute */
534 int lower, /* I - Lower value */
535 int upper) /* I - Upper value */
536 {
537 ipp_attribute_t *attr; /* New attribute */
538
539
540 DEBUG_printf(("ippAddRange(ipp=%p, group=%02x(%s), name=\"%s\", lower=%d, "
541 "upper=%d)\n", ipp, group, ippTagString(group), name, lower,
542 upper));
543
544 if (!ipp || !name)
545 return (NULL);
546
547 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
548 return (NULL);
549
550 attr->name = _cupsStrAlloc(name);
551 attr->group_tag = group;
552 attr->value_tag = IPP_TAG_RANGE;
553 attr->values[0].range.lower = lower;
554 attr->values[0].range.upper = upper;
555
556 return (attr);
557 }
558
559
560 /*
561 * 'ippAddRanges()' - Add ranges of values to an IPP message.
562 */
563
564 ipp_attribute_t * /* O - New attribute */
565 ippAddRanges(ipp_t *ipp, /* I - IPP message */
566 ipp_tag_t group, /* I - IPP group */
567 const char *name, /* I - Name of attribute */
568 int num_values, /* I - Number of values */
569 const int *lower, /* I - Lower values */
570 const int *upper) /* I - Upper values */
571 {
572 int i; /* Looping var */
573 ipp_attribute_t *attr; /* New attribute */
574 ipp_value_t *value; /* Current value */
575
576
577 DEBUG_printf(("ippAddRanges(ipp=%p, group=%02x(%s), name=\"%s\", "
578 "num_values=%d, lower=%p, upper=%p)\n", ipp, group,
579 ippTagString(group), name, num_values, lower, upper));
580
581 if (!ipp || !name || num_values < 1)
582 return (NULL);
583
584 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
585 return (NULL);
586
587 attr->name = _cupsStrAlloc(name);
588 attr->group_tag = group;
589 attr->value_tag = IPP_TAG_RANGE;
590
591 if (lower != NULL && upper != NULL)
592 for (i = 0, value = attr->values;
593 i < num_values;
594 i ++, value ++)
595 {
596 value->range.lower = lower[i];
597 value->range.upper = upper[i];
598 }
599
600 return (attr);
601 }
602
603
604 /*
605 * 'ippAddResolution()' - Add a resolution value to an IPP message.
606 */
607
608 ipp_attribute_t * /* O - New attribute */
609 ippAddResolution(ipp_t *ipp, /* I - IPP message */
610 ipp_tag_t group, /* I - IPP group */
611 const char *name, /* I - Name of attribute */
612 ipp_res_t units, /* I - Units for resolution */
613 int xres, /* I - X resolution */
614 int yres) /* I - Y resolution */
615 {
616 ipp_attribute_t *attr; /* New attribute */
617
618
619 DEBUG_printf(("ippAddResolution(ipp=%p, group=%02x(%s), name=\"%s\", "
620 "units=%d, xres=%d, yres=%d)\n", ipp, group,
621 ippTagString(group), name, units, xres, yres));
622
623 if (!ipp || !name)
624 return (NULL);
625
626 if ((attr = _ippAddAttr(ipp, 1)) == NULL)
627 return (NULL);
628
629 attr->name = _cupsStrAlloc(name);
630 attr->group_tag = group;
631 attr->value_tag = IPP_TAG_RESOLUTION;
632 attr->values[0].resolution.xres = xres;
633 attr->values[0].resolution.yres = yres;
634 attr->values[0].resolution.units = units;
635
636 return (attr);
637 }
638
639
640 /*
641 * 'ippAddResolutions()' - Add resolution values to an IPP message.
642 */
643
644 ipp_attribute_t * /* O - New attribute */
645 ippAddResolutions(ipp_t *ipp, /* I - IPP message */
646 ipp_tag_t group, /* I - IPP group */
647 const char *name, /* I - Name of attribute */
648 int num_values,/* I - Number of values */
649 ipp_res_t units, /* I - Units for resolution */
650 const int *xres, /* I - X resolutions */
651 const int *yres) /* I - Y resolutions */
652 {
653 int i; /* Looping var */
654 ipp_attribute_t *attr; /* New attribute */
655 ipp_value_t *value; /* Current value */
656
657
658 DEBUG_printf(("ippAddResolutions(ipp=%p, group=%02x(%s), name=\"%s\", "
659 "num_value=%d, units=%d, xres=%p, yres=%p)\n", ipp, group,
660 ippTagString(group), name, num_values, units, xres, yres));
661
662 if (!ipp || !name || num_values < 1)
663 return (NULL);
664
665 if ((attr = _ippAddAttr(ipp, num_values)) == NULL)
666 return (NULL);
667
668 attr->name = _cupsStrAlloc(name);
669 attr->group_tag = group;
670 attr->value_tag = IPP_TAG_RESOLUTION;
671
672 if (xres != NULL && yres != NULL)
673 for (i = 0, value = attr->values;
674 i < num_values;
675 i ++, value ++)
676 {
677 value->resolution.xres = xres[i];
678 value->resolution.yres = yres[i];
679 value->resolution.units = units;
680 }
681
682 return (attr);
683 }
684
685
686 /*
687 * 'ippAddSeparator()' - Add a group separator to an IPP message.
688 */
689
690 ipp_attribute_t * /* O - New attribute */
691 ippAddSeparator(ipp_t *ipp) /* I - IPP message */
692 {
693 ipp_attribute_t *attr; /* New attribute */
694
695
696 DEBUG_printf(("ippAddSeparator(ipp=%p)\n", ipp));
697
698 if (!ipp)
699 return (NULL);
700
701 if ((attr = _ippAddAttr(ipp, 0)) == NULL)
702 return (NULL);
703
704 attr->group_tag = IPP_TAG_ZERO;
705 attr->value_tag = IPP_TAG_ZERO;
706
707 return (attr);
708 }
709
710
711 /*
712 * 'ippDateToTime()' - Convert from RFC 1903 Date/Time format to UNIX time
713 * in seconds.
714 */
715
716 time_t /* O - UNIX time value */
717 ippDateToTime(const ipp_uchar_t *date) /* I - RFC 1903 date info */
718 {
719 struct tm unixdate; /* UNIX date/time info */
720 time_t t; /* Computed time */
721
722
723 if (!date)
724 return (0);
725
726 memset(&unixdate, 0, sizeof(unixdate));
727
728 /*
729 * RFC-1903 date/time format is:
730 *
731 * Byte(s) Description
732 * ------- -----------
733 * 0-1 Year (0 to 65535)
734 * 2 Month (1 to 12)
735 * 3 Day (1 to 31)
736 * 4 Hours (0 to 23)
737 * 5 Minutes (0 to 59)
738 * 6 Seconds (0 to 60, 60 = "leap second")
739 * 7 Deciseconds (0 to 9)
740 * 8 +/- UTC
741 * 9 UTC hours (0 to 11)
742 * 10 UTC minutes (0 to 59)
743 */
744
745 unixdate.tm_year = ((date[0] << 8) | date[1]) - 1900;
746 unixdate.tm_mon = date[2] - 1;
747 unixdate.tm_mday = date[3];
748 unixdate.tm_hour = date[4];
749 unixdate.tm_min = date[5];
750 unixdate.tm_sec = date[6];
751
752 t = mktime(&unixdate);
753
754 if (date[8] == '-')
755 t += date[9] * 3600 + date[10] * 60;
756 else
757 t -= date[9] * 3600 + date[10] * 60;
758
759 return (t);
760 }
761
762
763 /*
764 * 'ippDelete()' - Delete an IPP message.
765 */
766
767 void
768 ippDelete(ipp_t *ipp) /* I - IPP message */
769 {
770 ipp_attribute_t *attr, /* Current attribute */
771 *next; /* Next attribute */
772
773
774 DEBUG_printf(("ippDelete(ipp=%p)\n", ipp));
775
776 if (!ipp)
777 return;
778
779 for (attr = ipp->attrs; attr != NULL; attr = next)
780 {
781 next = attr->next;
782 _ippFreeAttr(attr);
783 }
784
785 free(ipp);
786 }
787
788
789 /*
790 * 'ippDeleteAttribute()' - Delete a single attribute in an IPP message.
791 *
792 * @since CUPS 1.1.19/Mac OS X 10.3@
793 */
794
795 void
796 ippDeleteAttribute(
797 ipp_t *ipp, /* I - IPP message */
798 ipp_attribute_t *attr) /* I - Attribute to delete */
799 {
800 ipp_attribute_t *current, /* Current attribute */
801 *prev; /* Previous attribute */
802
803
804 DEBUG_printf(("ippDeleteAttribute(ipp=%p, attr=%p)\n", ipp, attr));
805
806 /*
807 * Find the attribute in the list...
808 */
809
810 for (current = ipp->attrs, prev = NULL;
811 current != NULL && current != attr;
812 prev = current, current = current->next);
813
814 if (current)
815 {
816 /*
817 * Found it, remove the attribute from the list...
818 */
819
820 if (prev)
821 prev->next = current->next;
822 else
823 ipp->attrs = current->next;
824
825 if (current == ipp->last)
826 ipp->last = prev;
827
828 /*
829 * Free memory used by the attribute...
830 */
831
832 _ippFreeAttr(current);
833 }
834 }
835
836
837 /*
838 * 'ippFindAttribute()' - Find a named attribute in a request...
839 */
840
841 ipp_attribute_t * /* O - Matching attribute */
842 ippFindAttribute(ipp_t *ipp, /* I - IPP message */
843 const char *name, /* I - Name of attribute */
844 ipp_tag_t type) /* I - Type of attribute */
845 {
846 DEBUG_printf(("ippFindAttribute(ipp=%p, name=\"%s\", type=%02x(%s))\n", ipp,
847 name, type, ippTagString(type)));
848
849 if (!ipp || !name)
850 return (NULL);
851
852 /*
853 * Reset the current pointer...
854 */
855
856 ipp->current = NULL;
857
858 /*
859 * Search for the attribute...
860 */
861
862 return (ippFindNextAttribute(ipp, name, type));
863 }
864
865
866 /*
867 * 'ippFindNextAttribute()' - Find the next named attribute in a request...
868 */
869
870 ipp_attribute_t * /* O - Matching attribute */
871 ippFindNextAttribute(ipp_t *ipp, /* I - IPP message */
872 const char *name, /* I - Name of attribute */
873 ipp_tag_t type) /* I - Type of attribute */
874 {
875 ipp_attribute_t *attr; /* Current atttribute */
876 ipp_tag_t value_tag; /* Value tag */
877
878
879 DEBUG_printf(("ippFindNextAttribute(ipp=%p, name=\"%s\", type=%02x(%s))\n",
880 ipp, name, type, ippTagString(type)));
881
882 if (!ipp || !name)
883 return (NULL);
884
885 if (ipp->current)
886 {
887 ipp->prev = ipp->current;
888 attr = ipp->current->next;
889 }
890 else
891 {
892 ipp->prev = NULL;
893 attr = ipp->attrs;
894 }
895
896 for (; attr != NULL; ipp->prev = attr, attr = attr->next)
897 {
898 DEBUG_printf(("ippFindAttribute: attr=%p, name=\"%s\"\n", attr,
899 attr->name));
900
901 value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_MASK);
902
903 if (attr->name != NULL && strcasecmp(attr->name, name) == 0 &&
904 (value_tag == type || type == IPP_TAG_ZERO ||
905 (value_tag == IPP_TAG_TEXTLANG && type == IPP_TAG_TEXT) ||
906 (value_tag == IPP_TAG_NAMELANG && type == IPP_TAG_NAME)))
907 {
908 ipp->current = attr;
909
910 return (attr);
911 }
912 }
913
914 ipp->current = NULL;
915 ipp->prev = NULL;
916
917 return (NULL);
918 }
919
920
921 /*
922 * 'ippLength()' - Compute the length of an IPP message.
923 */
924
925 size_t /* O - Size of IPP message */
926 ippLength(ipp_t *ipp) /* I - IPP message */
927 {
928 return (ipp_length(ipp, 0));
929 }
930
931
932 /*
933 * 'ippNew()' - Allocate a new IPP message.
934 */
935
936 ipp_t * /* O - New IPP message */
937 ippNew(void)
938 {
939 ipp_t *temp; /* New IPP message */
940
941
942 DEBUG_puts("ippNew()");
943
944 if ((temp = (ipp_t *)calloc(1, sizeof(ipp_t))) != NULL)
945 {
946 /*
947 * Default to IPP 1.1...
948 */
949
950 temp->request.any.version[0] = 1;
951 temp->request.any.version[1] = 1;
952 }
953
954 DEBUG_printf(("ippNew: %p\n", temp));
955
956 return (temp);
957 }
958
959
960 /*
961 * 'ippNewRequest()' - Allocate a new IPP request message.
962 *
963 * The new request message is initialized with the attributes-charset and
964 * attributes-natural-language attributes added. The
965 * attributes-natural-language value is derived from the current locale.
966 *
967 * @since CUPS 1.2/Mac OS X 10.5@
968 */
969
970 ipp_t * /* O - IPP request message */
971 ippNewRequest(ipp_op_t op) /* I - Operation code */
972 {
973 ipp_t *request; /* IPP request message */
974 cups_lang_t *language; /* Current language localization */
975
976
977 DEBUG_printf(("ippNewRequest(op=%02x(%s))\n", op, ippOpString(op)));
978
979 /*
980 * Create a new IPP message...
981 */
982
983 if ((request = ippNew()) == NULL)
984 return (NULL);
985
986 /*
987 * Set the operation and request ID...
988 */
989
990 request->request.op.operation_id = op;
991 request->request.op.request_id = 1;
992
993 /*
994 * Use UTF-8 as the character set...
995 */
996
997 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
998 "attributes-charset", NULL, "utf-8");
999
1000 /*
1001 * Get the language from the current locale...
1002 */
1003
1004 language = cupsLangDefault();
1005
1006 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1007 "attributes-natural-language", NULL, language->language);
1008
1009 /*
1010 * Return the new request...
1011 */
1012
1013 return (request);
1014 }
1015
1016
1017 /*
1018 * 'ippRead()' - Read data for an IPP message from a HTTP connection.
1019 */
1020
1021 ipp_state_t /* O - Current state */
1022 ippRead(http_t *http, /* I - HTTP connection */
1023 ipp_t *ipp) /* I - IPP data */
1024 {
1025 DEBUG_printf(("ippRead(http=%p, ipp=%p), data_remaining=" CUPS_LLFMT "\n",
1026 http, ipp, CUPS_LLCAST (http ? http->data_remaining : -1)));
1027
1028 if (!http)
1029 return (IPP_ERROR);
1030
1031 DEBUG_printf(("ippRead: http->state=%d, http->used=%d\n", http->state,
1032 http->used));
1033
1034 return (ippReadIO(http, (ipp_iocb_t)ipp_read_http, http->blocking, NULL,
1035 ipp));
1036 }
1037
1038
1039 /*
1040 * 'ippReadFile()' - Read data for an IPP message from a file.
1041 *
1042 * @since CUPS 1.1.19/Mac OS X 10.3@
1043 */
1044
1045 ipp_state_t /* O - Current state */
1046 ippReadFile(int fd, /* I - HTTP data */
1047 ipp_t *ipp) /* I - IPP data */
1048 {
1049 DEBUG_printf(("ippReadFile(fd=%d, ipp=%p)\n", fd, ipp));
1050
1051 return (ippReadIO(&fd, (ipp_iocb_t)ipp_read_file, 1, NULL, ipp));
1052 }
1053
1054
1055 /*
1056 * 'ippReadIO()' - Read data for an IPP message.
1057 *
1058 * @since CUPS 1.2/Mac OS X 10.5@
1059 */
1060
1061 ipp_state_t /* O - Current state */
1062 ippReadIO(void *src, /* I - Data source */
1063 ipp_iocb_t cb, /* I - Read callback function */
1064 int blocking, /* I - Use blocking IO? */
1065 ipp_t *parent, /* I - Parent request, if any */
1066 ipp_t *ipp) /* I - IPP data */
1067 {
1068 int n; /* Length of data */
1069 unsigned char *buffer, /* Data buffer */
1070 string[IPP_MAX_NAME],
1071 /* Small string buffer */
1072 *bufptr; /* Pointer into buffer */
1073 ipp_attribute_t *attr; /* Current attribute */
1074 ipp_tag_t tag; /* Current tag */
1075 ipp_tag_t value_tag; /* Current value tag */
1076 ipp_value_t *value; /* Current value */
1077
1078
1079 DEBUG_printf(("ippReadIO(src=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)\n",
1080 src, cb, blocking, parent, ipp));
1081 DEBUG_printf(("ippReadIO: ipp->state=%d\n", ipp->state));
1082
1083 if (!src || !ipp)
1084 return (IPP_ERROR);
1085
1086 if ((buffer = ipp_buffer_get()) == NULL)
1087 {
1088 DEBUG_puts("ippReadIO: Unable to get read buffer!");
1089 return (IPP_ERROR);
1090 }
1091
1092 switch (ipp->state)
1093 {
1094 case IPP_IDLE :
1095 ipp->state ++; /* Avoid common problem... */
1096
1097 case IPP_HEADER :
1098 if (parent == NULL)
1099 {
1100 /*
1101 * Get the request header...
1102 */
1103
1104 if ((*cb)(src, buffer, 8) < 8)
1105 {
1106 DEBUG_puts("ippReadIO: Unable to read header!");
1107 ipp_buffer_release(buffer);
1108 return (IPP_ERROR);
1109 }
1110
1111 /*
1112 * Then copy the request header over...
1113 */
1114
1115 ipp->request.any.version[0] = buffer[0];
1116 ipp->request.any.version[1] = buffer[1];
1117 ipp->request.any.op_status = (buffer[2] << 8) | buffer[3];
1118 ipp->request.any.request_id = (((((buffer[4] << 8) | buffer[5]) << 8) |
1119 buffer[6]) << 8) | buffer[7];
1120
1121 DEBUG_printf(("ippReadIO: version=%d.%d\n", buffer[0], buffer[1]));
1122 DEBUG_printf(("ippReadIO: op_status=%04x\n",
1123 ipp->request.any.op_status));
1124 DEBUG_printf(("ippReadIO: request_id=%d\n",
1125 ipp->request.any.request_id));
1126 }
1127
1128 ipp->state = IPP_ATTRIBUTE;
1129 ipp->current = NULL;
1130 ipp->curtag = IPP_TAG_ZERO;
1131 ipp->prev = ipp->last;
1132
1133 /*
1134 * If blocking is disabled, stop here...
1135 */
1136
1137 if (!blocking)
1138 break;
1139
1140 case IPP_ATTRIBUTE :
1141 for (;;)
1142 {
1143 if ((*cb)(src, buffer, 1) < 1)
1144 {
1145 DEBUG_puts("ippReadIO: Callback returned EOF/error");
1146 ipp_buffer_release(buffer);
1147 return (IPP_ERROR);
1148 }
1149
1150 DEBUG_printf(("ippReadIO: ipp->current=%p, ipp->prev=%p\n",
1151 ipp->current, ipp->prev));
1152
1153 /*
1154 * Read this attribute...
1155 */
1156
1157 tag = (ipp_tag_t)buffer[0];
1158
1159 if (tag == IPP_TAG_END)
1160 {
1161 /*
1162 * No more attributes left...
1163 */
1164
1165 DEBUG_puts("ippReadIO: IPP_TAG_END!");
1166
1167 ipp->state = IPP_DATA;
1168 break;
1169 }
1170 else if (tag < IPP_TAG_UNSUPPORTED_VALUE)
1171 {
1172 /*
1173 * Group tag... Set the current group and continue...
1174 */
1175
1176 if (ipp->curtag == tag)
1177 ipp->prev = ippAddSeparator(ipp);
1178 else if (ipp->current)
1179 ipp->prev = ipp->current;
1180
1181 ipp->curtag = tag;
1182 ipp->current = NULL;
1183 DEBUG_printf(("ippReadIO: group tag=%x(%s), ipp->prev=%p\n", tag,
1184 ippTagString(tag), ipp->prev));
1185 continue;
1186 }
1187
1188 DEBUG_printf(("ippReadIO: value tag=%x(%s)\n", tag,
1189 ippTagString(tag)));
1190
1191 /*
1192 * Get the name...
1193 */
1194
1195 if ((*cb)(src, buffer, 2) < 2)
1196 {
1197 DEBUG_puts("ippReadIO: unable to read name length!");
1198 ipp_buffer_release(buffer);
1199 return (IPP_ERROR);
1200 }
1201
1202 n = (buffer[0] << 8) | buffer[1];
1203
1204 if (n >= IPP_BUF_SIZE)
1205 {
1206 DEBUG_printf(("ippReadIO: bad name length %d!\n", n));
1207 ipp_buffer_release(buffer);
1208 return (IPP_ERROR);
1209 }
1210
1211 DEBUG_printf(("ippReadIO: name length=%d\n", n));
1212
1213 if (n == 0 && tag != IPP_TAG_MEMBERNAME &&
1214 tag != IPP_TAG_END_COLLECTION)
1215 {
1216 /*
1217 * More values for current attribute...
1218 */
1219
1220 if (ipp->current == NULL)
1221 {
1222 DEBUG_puts("ippReadIO: Attribute without name and no current");
1223 ipp_buffer_release(buffer);
1224 return (IPP_ERROR);
1225 }
1226
1227 attr = ipp->current;
1228 value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_MASK);
1229
1230 /*
1231 * Make sure we aren't adding a new value of a different
1232 * type...
1233 */
1234
1235 if (value_tag == IPP_TAG_ZERO)
1236 {
1237 /*
1238 * Setting the value of a collection member...
1239 */
1240
1241 attr->value_tag = tag;
1242 }
1243 else if ((value_tag >= IPP_TAG_TEXTLANG &&
1244 value_tag <= IPP_TAG_MIMETYPE))
1245 {
1246 /*
1247 * String values can sometimes come across in different
1248 * forms; accept sets of differing values...
1249 */
1250
1251 if ((tag < IPP_TAG_TEXTLANG || tag > IPP_TAG_MIMETYPE) &&
1252 tag != IPP_TAG_NOVALUE)
1253 {
1254 DEBUG_printf(("ippReadIO: 1setOf value tag %x(%s) != %x(%s)\n",
1255 value_tag, ippTagString(value_tag), tag,
1256 ippTagString(tag)));
1257 ipp_buffer_release(buffer);
1258 return (IPP_ERROR);
1259 }
1260 }
1261 else if (value_tag != tag)
1262 {
1263 DEBUG_printf(("ippReadIO: value tag %x(%s) != %x(%s)\n",
1264 value_tag, ippTagString(value_tag), tag,
1265 ippTagString(tag)));
1266 ipp_buffer_release(buffer);
1267 return (IPP_ERROR);
1268 }
1269
1270 /*
1271 * Finally, reallocate the attribute array as needed...
1272 */
1273
1274 if (attr->num_values == 1 ||
1275 (attr->num_values > 0 &&
1276 (attr->num_values & (IPP_MAX_VALUES - 1)) == 0))
1277 {
1278 ipp_attribute_t *temp; /* Pointer to new buffer */
1279
1280
1281 DEBUG_printf(("ippReadIO: reallocating for up to %d values...\n",
1282 attr->num_values + IPP_MAX_VALUES));
1283
1284 /*
1285 * Reallocate memory...
1286 */
1287
1288 if ((temp = realloc(attr, sizeof(ipp_attribute_t) +
1289 (attr->num_values + IPP_MAX_VALUES - 1) *
1290 sizeof(ipp_value_t))) == NULL)
1291 {
1292 DEBUG_puts("ippReadIO: Unable to resize attribute");
1293 ipp_buffer_release(buffer);
1294 return (IPP_ERROR);
1295 }
1296
1297 if (temp != attr)
1298 {
1299 /*
1300 * Reset pointers in the list...
1301 */
1302
1303 if (ipp->prev)
1304 ipp->prev->next = temp;
1305 else
1306 ipp->attrs = temp;
1307
1308 attr = ipp->current = ipp->last = temp;
1309 }
1310 }
1311 }
1312 else if (tag == IPP_TAG_MEMBERNAME)
1313 {
1314 /*
1315 * Name must be length 0!
1316 */
1317
1318 if (n)
1319 {
1320 DEBUG_puts("ippReadIO: member name not empty!");
1321 ipp_buffer_release(buffer);
1322 return (IPP_ERROR);
1323 }
1324
1325 if (ipp->current)
1326 ipp->prev = ipp->current;
1327
1328 attr = ipp->current = _ippAddAttr(ipp, 1);
1329
1330 DEBUG_printf(("ippReadIO: membername, ipp->current=%p, "
1331 "ipp->prev=%p\n", ipp->current, ipp->prev));
1332
1333 attr->group_tag = ipp->curtag;
1334 attr->value_tag = IPP_TAG_ZERO;
1335 attr->num_values = 0;
1336 }
1337 else if (tag != IPP_TAG_END_COLLECTION)
1338 {
1339 /*
1340 * New attribute; read the name and add it...
1341 */
1342
1343 if ((*cb)(src, buffer, n) < n)
1344 {
1345 DEBUG_puts("ippReadIO: unable to read name!");
1346 ipp_buffer_release(buffer);
1347 return (IPP_ERROR);
1348 }
1349
1350 buffer[n] = '\0';
1351
1352 if (ipp->current)
1353 ipp->prev = ipp->current;
1354
1355 if ((attr = ipp->current = _ippAddAttr(ipp, 1)) == NULL)
1356 {
1357 DEBUG_puts("ippReadIO: unable to allocate attribute!");
1358 ipp_buffer_release(buffer);
1359 return (IPP_ERROR);
1360 }
1361
1362 DEBUG_printf(("ippReadIO: name=\"%s\", ipp->current=%p, "
1363 "ipp->prev=%p\n", buffer, ipp->current, ipp->prev));
1364
1365 attr->group_tag = ipp->curtag;
1366 attr->value_tag = tag;
1367 attr->name = _cupsStrAlloc((char *)buffer);
1368 attr->num_values = 0;
1369 }
1370 else
1371 attr = NULL;
1372
1373 if (tag != IPP_TAG_END_COLLECTION)
1374 value = attr->values + attr->num_values;
1375 else
1376 value = NULL;
1377
1378 if ((*cb)(src, buffer, 2) < 2)
1379 {
1380 DEBUG_puts("ippReadIO: unable to read value length!");
1381 ipp_buffer_release(buffer);
1382 return (IPP_ERROR);
1383 }
1384
1385 n = (buffer[0] << 8) | buffer[1];
1386 DEBUG_printf(("ippReadIO: value length=%d\n", n));
1387
1388 switch (tag)
1389 {
1390 case IPP_TAG_INTEGER :
1391 case IPP_TAG_ENUM :
1392 if (n != 4)
1393 {
1394 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1395 ipp_buffer_release(buffer);
1396 return (IPP_ERROR);
1397 }
1398
1399 if ((*cb)(src, buffer, 4) < 4)
1400 {
1401 DEBUG_puts("ippReadIO: Unable to read integer value!");
1402 ipp_buffer_release(buffer);
1403 return (IPP_ERROR);
1404 }
1405
1406 n = (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
1407 buffer[3];
1408
1409 value->integer = n;
1410 break;
1411
1412 case IPP_TAG_BOOLEAN :
1413 if (n != 1)
1414 {
1415 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1416 ipp_buffer_release(buffer);
1417 return (IPP_ERROR);
1418 }
1419
1420 if ((*cb)(src, buffer, 1) < 1)
1421 {
1422 DEBUG_puts("ippReadIO: Unable to read boolean value!");
1423 ipp_buffer_release(buffer);
1424 return (IPP_ERROR);
1425 }
1426
1427 value->boolean = buffer[0];
1428 break;
1429
1430 case IPP_TAG_NOVALUE :
1431 case IPP_TAG_NOTSETTABLE :
1432 case IPP_TAG_DELETEATTR :
1433 case IPP_TAG_ADMINDEFINE :
1434 if (attr->value_tag == IPP_TAG_NOVALUE)
1435 {
1436 if (n == 0)
1437 break;
1438
1439 attr->value_tag = IPP_TAG_TEXT;
1440 }
1441
1442 case IPP_TAG_TEXT :
1443 case IPP_TAG_NAME :
1444 case IPP_TAG_KEYWORD :
1445 case IPP_TAG_URI :
1446 case IPP_TAG_URISCHEME :
1447 case IPP_TAG_CHARSET :
1448 case IPP_TAG_LANGUAGE :
1449 case IPP_TAG_MIMETYPE :
1450 if (n >= IPP_BUF_SIZE)
1451 {
1452 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1453 ipp_buffer_release(buffer);
1454 return (IPP_ERROR);
1455 }
1456
1457 if ((*cb)(src, buffer, n) < n)
1458 {
1459 DEBUG_puts("ippReadIO: unable to read name!");
1460 ipp_buffer_release(buffer);
1461 return (IPP_ERROR);
1462 }
1463
1464 buffer[n] = '\0';
1465 value->string.text = _cupsStrAlloc((char *)buffer);
1466 DEBUG_printf(("ippReadIO: value=\"%s\"\n",
1467 value->string.text));
1468 break;
1469
1470 case IPP_TAG_DATE :
1471 if (n != 11)
1472 {
1473 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1474 ipp_buffer_release(buffer);
1475 return (IPP_ERROR);
1476 }
1477
1478 if ((*cb)(src, value->date, 11) < 11)
1479 {
1480 DEBUG_puts("ippReadIO: Unable to date integer value!");
1481 ipp_buffer_release(buffer);
1482 return (IPP_ERROR);
1483 }
1484 break;
1485
1486 case IPP_TAG_RESOLUTION :
1487 if (n != 9)
1488 {
1489 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1490 ipp_buffer_release(buffer);
1491 return (IPP_ERROR);
1492 }
1493
1494 if ((*cb)(src, buffer, 9) < 9)
1495 {
1496 DEBUG_puts("ippReadIO: Unable to read resolution value!");
1497 ipp_buffer_release(buffer);
1498 return (IPP_ERROR);
1499 }
1500
1501 value->resolution.xres =
1502 (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
1503 buffer[3];
1504 value->resolution.yres =
1505 (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) |
1506 buffer[7];
1507 value->resolution.units =
1508 (ipp_res_t)buffer[8];
1509 break;
1510
1511 case IPP_TAG_RANGE :
1512 if (n != 8)
1513 {
1514 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1515 ipp_buffer_release(buffer);
1516 return (IPP_ERROR);
1517 }
1518
1519 if ((*cb)(src, buffer, 8) < 8)
1520 {
1521 DEBUG_puts("ippReadIO: Unable to read range value!");
1522 ipp_buffer_release(buffer);
1523 return (IPP_ERROR);
1524 }
1525
1526 value->range.lower =
1527 (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) |
1528 buffer[3];
1529 value->range.upper =
1530 (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) |
1531 buffer[7];
1532 break;
1533
1534 case IPP_TAG_TEXTLANG :
1535 case IPP_TAG_NAMELANG :
1536 if (n >= IPP_BUF_SIZE || n < 4)
1537 {
1538 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1539 ipp_buffer_release(buffer);
1540 return (IPP_ERROR);
1541 }
1542
1543 if ((*cb)(src, buffer, n) < n)
1544 {
1545 DEBUG_puts("ippReadIO: Unable to read string w/language value!");
1546 ipp_buffer_release(buffer);
1547 return (IPP_ERROR);
1548 }
1549
1550 bufptr = buffer;
1551
1552 /*
1553 * text-with-language and name-with-language are composite
1554 * values:
1555 *
1556 * charset-length
1557 * charset
1558 * text-length
1559 * text
1560 */
1561
1562 n = (bufptr[0] << 8) | bufptr[1];
1563
1564 if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE) ||
1565 n >= sizeof(string))
1566 {
1567 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1568 ipp_buffer_release(buffer);
1569 return (IPP_ERROR);
1570 }
1571
1572 memcpy(string, bufptr + 2, n);
1573 string[n] = '\0';
1574
1575 value->string.charset = _cupsStrAlloc((char *)string);
1576
1577 bufptr += 2 + n;
1578 n = (bufptr[0] << 8) | bufptr[1];
1579
1580 if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE))
1581 {
1582 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1583 ipp_buffer_release(buffer);
1584 return (IPP_ERROR);
1585 }
1586
1587 bufptr[2 + n] = '\0';
1588 value->string.text = _cupsStrAlloc((char *)bufptr + 2);
1589 break;
1590
1591 case IPP_TAG_BEGIN_COLLECTION :
1592 /*
1593 * Oh, boy, here comes a collection value, so read it...
1594 */
1595
1596 value->collection = ippNew();
1597
1598 if (n > 0)
1599 {
1600 DEBUG_puts("ippReadIO: begCollection tag with value length "
1601 "> 0!");
1602 ipp_buffer_release(buffer);
1603 return (IPP_ERROR);
1604 }
1605
1606 if (ippReadIO(src, cb, 1, ipp, value->collection) == IPP_ERROR)
1607 {
1608 DEBUG_puts("ippReadIO: Unable to read collection value!");
1609 ipp_buffer_release(buffer);
1610 return (IPP_ERROR);
1611 }
1612 break;
1613
1614 case IPP_TAG_END_COLLECTION :
1615 ipp_buffer_release(buffer);
1616
1617 if (n > 0)
1618 {
1619 DEBUG_puts("ippReadIO: endCollection tag with value length "
1620 "> 0!");
1621 return (IPP_ERROR);
1622 }
1623
1624 DEBUG_puts("ippReadIO: endCollection tag...");
1625 return (ipp->state = IPP_DATA);
1626
1627 case IPP_TAG_MEMBERNAME :
1628 /*
1629 * The value the name of the member in the collection, which
1630 * we need to carry over...
1631 */
1632
1633 if (n >= IPP_BUF_SIZE)
1634 {
1635 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1636 ipp_buffer_release(buffer);
1637 return (IPP_ERROR);
1638 }
1639
1640 if ((*cb)(src, buffer, n) < n)
1641 {
1642 DEBUG_puts("ippReadIO: Unable to read member name value!");
1643 ipp_buffer_release(buffer);
1644 return (IPP_ERROR);
1645 }
1646
1647 buffer[n] = '\0';
1648 attr->name = _cupsStrAlloc((char *)buffer);
1649
1650 /*
1651 * Since collection members are encoded differently than
1652 * regular attributes, make sure we don't start with an
1653 * empty value...
1654 */
1655
1656 attr->num_values --;
1657
1658 DEBUG_printf(("ippReadIO: member name=\"%s\"\n", attr->name));
1659 break;
1660
1661 default : /* Other unsupported values */
1662 if (n > IPP_MAX_LENGTH)
1663 {
1664 DEBUG_printf(("ippReadIO: bad value length %d!\n", n));
1665 ipp_buffer_release(buffer);
1666 return (IPP_ERROR);
1667 }
1668
1669 if (!value)
1670 {
1671 DEBUG_puts("ippReadIO: NULL value!");
1672 ipp_buffer_release(buffer);
1673 return (IPP_ERROR);
1674 }
1675
1676 value->unknown.length = n;
1677 if (n > 0)
1678 {
1679 if ((value->unknown.data = malloc(n)) == NULL)
1680 {
1681 DEBUG_puts("ippReadIO: Unable to allocate value");
1682 ipp_buffer_release(buffer);
1683 return (IPP_ERROR);
1684 }
1685
1686 if ((*cb)(src, value->unknown.data, n) < n)
1687 {
1688 DEBUG_puts("ippReadIO: Unable to read unsupported value!");
1689 ipp_buffer_release(buffer);
1690 return (IPP_ERROR);
1691 }
1692 }
1693 else
1694 value->unknown.data = NULL;
1695 break;
1696 }
1697
1698 attr->num_values ++;
1699
1700 /*
1701 * If blocking is disabled, stop here...
1702 */
1703
1704 if (!blocking)
1705 break;
1706 }
1707 break;
1708
1709 case IPP_DATA :
1710 break;
1711
1712 default :
1713 break; /* anti-compiler-warning-code */
1714 }
1715
1716 DEBUG_printf(("ippReadIO: returning ipp->state=%d!\n", ipp->state));
1717 ipp_buffer_release(buffer);
1718
1719 return (ipp->state);
1720 }
1721
1722
1723 /*
1724 * 'ippTimeToDate()' - Convert from UNIX time to RFC 1903 format.
1725 */
1726
1727 const ipp_uchar_t * /* O - RFC-1903 date/time data */
1728 ippTimeToDate(time_t t) /* I - UNIX time value */
1729 {
1730 struct tm *unixdate; /* UNIX unixdate/time info */
1731 ipp_uchar_t *date = _cupsGlobals()->ipp_date;
1732 /* RFC-1903 date/time data */
1733
1734
1735 /*
1736 * RFC-1903 date/time format is:
1737 *
1738 * Byte(s) Description
1739 * ------- -----------
1740 * 0-1 Year (0 to 65535)
1741 * 2 Month (1 to 12)
1742 * 3 Day (1 to 31)
1743 * 4 Hours (0 to 23)
1744 * 5 Minutes (0 to 59)
1745 * 6 Seconds (0 to 60, 60 = "leap second")
1746 * 7 Deciseconds (0 to 9)
1747 * 8 +/- UTC
1748 * 9 UTC hours (0 to 11)
1749 * 10 UTC minutes (0 to 59)
1750 */
1751
1752 unixdate = gmtime(&t);
1753 unixdate->tm_year += 1900;
1754
1755 date[0] = unixdate->tm_year >> 8;
1756 date[1] = unixdate->tm_year;
1757 date[2] = unixdate->tm_mon + 1;
1758 date[3] = unixdate->tm_mday;
1759 date[4] = unixdate->tm_hour;
1760 date[5] = unixdate->tm_min;
1761 date[6] = unixdate->tm_sec;
1762 date[7] = 0;
1763 date[8] = '+';
1764 date[9] = 0;
1765 date[10] = 0;
1766
1767 return (date);
1768 }
1769
1770
1771 /*
1772 * 'ippWrite()' - Write data for an IPP message to a HTTP connection.
1773 */
1774
1775 ipp_state_t /* O - Current state */
1776 ippWrite(http_t *http, /* I - HTTP connection */
1777 ipp_t *ipp) /* I - IPP data */
1778 {
1779 DEBUG_printf(("ippWrite(http=%p, ipp=%p)\n", http, ipp));
1780
1781 if (!http)
1782 return (IPP_ERROR);
1783
1784 return (ippWriteIO(http, (ipp_iocb_t)httpWrite2,
1785 http->blocking, NULL, ipp));
1786 }
1787
1788
1789 /*
1790 * 'ippWriteFile()' - Write data for an IPP message to a file.
1791 *
1792 * @since CUPS 1.1.19/Mac OS X 10.3@
1793 */
1794
1795 ipp_state_t /* O - Current state */
1796 ippWriteFile(int fd, /* I - HTTP data */
1797 ipp_t *ipp) /* I - IPP data */
1798 {
1799 DEBUG_printf(("ippWriteFile(fd=%d, ipp=%p)\n", fd, ipp));
1800
1801 ipp->state = IPP_IDLE;
1802
1803 return (ippWriteIO(&fd, (ipp_iocb_t)ipp_write_file, 1, NULL, ipp));
1804 }
1805
1806
1807 /*
1808 * 'ippWriteIO()' - Write data for an IPP message.
1809 *
1810 * @since CUPS 1.2/Mac OS X 10.5@
1811 */
1812
1813 ipp_state_t /* O - Current state */
1814 ippWriteIO(void *dst, /* I - Destination */
1815 ipp_iocb_t cb, /* I - Write callback function */
1816 int blocking, /* I - Use blocking IO? */
1817 ipp_t *parent, /* I - Parent IPP message */
1818 ipp_t *ipp) /* I - IPP data */
1819 {
1820 int i; /* Looping var */
1821 int n; /* Length of data */
1822 unsigned char *buffer, /* Data buffer */
1823 *bufptr; /* Pointer into buffer */
1824 ipp_attribute_t *attr; /* Current attribute */
1825 ipp_value_t *value; /* Current value */
1826
1827
1828 DEBUG_printf(("ippWriteIO(dst=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)\n",
1829 dst, cb, blocking, parent, ipp));
1830
1831 if (!dst || !ipp)
1832 return (IPP_ERROR);
1833
1834 if ((buffer = ipp_buffer_get()) == NULL)
1835 {
1836 DEBUG_puts("ippWriteIO: Unable to get write buffer");
1837 return (IPP_ERROR);
1838 }
1839
1840 switch (ipp->state)
1841 {
1842 case IPP_IDLE :
1843 ipp->state ++; /* Avoid common problem... */
1844
1845 case IPP_HEADER :
1846 if (parent == NULL)
1847 {
1848 /*
1849 * Send the request header:
1850 *
1851 * Version = 2 bytes
1852 * Operation/Status Code = 2 bytes
1853 * Request ID = 4 bytes
1854 * Total = 8 bytes
1855 */
1856
1857 bufptr = buffer;
1858
1859 *bufptr++ = ipp->request.any.version[0];
1860 *bufptr++ = ipp->request.any.version[1];
1861 *bufptr++ = ipp->request.any.op_status >> 8;
1862 *bufptr++ = ipp->request.any.op_status;
1863 *bufptr++ = ipp->request.any.request_id >> 24;
1864 *bufptr++ = ipp->request.any.request_id >> 16;
1865 *bufptr++ = ipp->request.any.request_id >> 8;
1866 *bufptr++ = ipp->request.any.request_id;
1867
1868 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
1869 {
1870 DEBUG_puts("ippWriteIO: Could not write IPP header...");
1871 ipp_buffer_release(buffer);
1872 return (IPP_ERROR);
1873 }
1874 }
1875
1876 /*
1877 * Reset the state engine to point to the first attribute
1878 * in the request/response, with no current group.
1879 */
1880
1881 ipp->state = IPP_ATTRIBUTE;
1882 ipp->current = ipp->attrs;
1883 ipp->curtag = IPP_TAG_ZERO;
1884
1885 DEBUG_printf(("ippWriteIO: version=%d.%d\n", buffer[0], buffer[1]));
1886 DEBUG_printf(("ippWriteIO: op_status=%04x\n",
1887 ipp->request.any.op_status));
1888 DEBUG_printf(("ippWriteIO: request_id=%d\n",
1889 ipp->request.any.request_id));
1890
1891 /*
1892 * If blocking is disabled, stop here...
1893 */
1894
1895 if (!blocking)
1896 break;
1897
1898 case IPP_ATTRIBUTE :
1899 while (ipp->current != NULL)
1900 {
1901 /*
1902 * Write this attribute...
1903 */
1904
1905 bufptr = buffer;
1906 attr = ipp->current;
1907
1908 ipp->current = ipp->current->next;
1909
1910 if (ipp->curtag != attr->group_tag && parent == NULL)
1911 {
1912 /*
1913 * Send a group tag byte...
1914 */
1915
1916 ipp->curtag = attr->group_tag;
1917
1918 if (attr->group_tag == IPP_TAG_ZERO)
1919 continue;
1920
1921 DEBUG_printf(("ippWriteIO: wrote group tag=%x(%s)\n",
1922 attr->group_tag, ippTagString(attr->group_tag)));
1923 *bufptr++ = attr->group_tag;
1924 }
1925 else if (attr->group_tag == IPP_TAG_ZERO)
1926 continue;
1927
1928 /*
1929 * Write the attribute tag and name. The current implementation
1930 * does not support the extension value tags above 0x7f, so all
1931 * value tags are 1 byte.
1932 *
1933 * The attribute name length does not include the trailing nul
1934 * character in the source string.
1935 *
1936 * Collection values (parent != NULL) are written differently...
1937 */
1938
1939 if (parent == NULL)
1940 {
1941 /*
1942 * Get the length of the attribute name, and make sure it won't
1943 * overflow the buffer...
1944 */
1945
1946 if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 4))
1947 {
1948 DEBUG_printf(("ippWriteIO: Attribute name too long (%d)\n", n));
1949 ipp_buffer_release(buffer);
1950 return (IPP_ERROR);
1951 }
1952
1953 /*
1954 * Write the value tag, name length, and name string...
1955 */
1956
1957 DEBUG_printf(("ippWriteIO: writing value tag=%x(%s)\n",
1958 attr->value_tag, ippTagString(attr->value_tag)));
1959 DEBUG_printf(("ippWriteIO: writing name=%d,\"%s\"\n", n,
1960 attr->name));
1961
1962 *bufptr++ = attr->value_tag;
1963 *bufptr++ = n >> 8;
1964 *bufptr++ = n;
1965 memcpy(bufptr, attr->name, n);
1966 bufptr += n;
1967 }
1968 else
1969 {
1970 /*
1971 * Get the length of the attribute name, and make sure it won't
1972 * overflow the buffer...
1973 */
1974
1975 if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 7))
1976 {
1977 DEBUG_printf(("ippWriteIO: Attribute name too long (%d)\n", n));
1978 ipp_buffer_release(buffer);
1979 return (IPP_ERROR);
1980 }
1981
1982 /*
1983 * Write the member name tag, name length, name string, value tag,
1984 * and empty name for the collection member attribute...
1985 */
1986
1987 DEBUG_printf(("ippWriteIO: writing value tag=%x(memberName)\n",
1988 IPP_TAG_MEMBERNAME));
1989 DEBUG_printf(("ippWriteIO: writing name=%d,\"%s\"\n", n,
1990 attr->name));
1991 DEBUG_printf(("ippWriteIO: writing value tag=%x(%s)\n",
1992 attr->value_tag, ippTagString(attr->value_tag)));
1993 DEBUG_puts("ippWriteIO: writing name=0,\"\"\n");
1994
1995 *bufptr++ = IPP_TAG_MEMBERNAME;
1996 *bufptr++ = 0;
1997 *bufptr++ = 0;
1998 *bufptr++ = n >> 8;
1999 *bufptr++ = n;
2000 memcpy(bufptr, attr->name, n);
2001 bufptr += n;
2002
2003 *bufptr++ = attr->value_tag;
2004 *bufptr++ = 0;
2005 *bufptr++ = 0;
2006 }
2007
2008 /*
2009 * Now write the attribute value(s)...
2010 */
2011
2012 switch (attr->value_tag & ~IPP_TAG_COPY)
2013 {
2014 case IPP_TAG_INTEGER :
2015 case IPP_TAG_ENUM :
2016 for (i = 0, value = attr->values;
2017 i < attr->num_values;
2018 i ++, value ++)
2019 {
2020 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 9)
2021 {
2022 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2023 {
2024 DEBUG_puts("ippWriteIO: Could not write IPP "
2025 "attribute...");
2026 ipp_buffer_release(buffer);
2027 return (IPP_ERROR);
2028 }
2029
2030 bufptr = buffer;
2031 }
2032
2033 if (i)
2034 {
2035 /*
2036 * Arrays and sets are done by sending additional
2037 * values with a zero-length name...
2038 */
2039
2040 *bufptr++ = attr->value_tag;
2041 *bufptr++ = 0;
2042 *bufptr++ = 0;
2043 }
2044
2045 /*
2046 * Integers and enumerations are both 4-byte signed
2047 * (twos-complement) values.
2048 *
2049 * Put the 2-byte length and 4-byte value into the buffer...
2050 */
2051
2052 *bufptr++ = 0;
2053 *bufptr++ = 4;
2054 *bufptr++ = value->integer >> 24;
2055 *bufptr++ = value->integer >> 16;
2056 *bufptr++ = value->integer >> 8;
2057 *bufptr++ = value->integer;
2058 }
2059 break;
2060
2061 case IPP_TAG_BOOLEAN :
2062 for (i = 0, value = attr->values;
2063 i < attr->num_values;
2064 i ++, value ++)
2065 {
2066 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 6)
2067 {
2068 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2069 {
2070 DEBUG_puts("ippWriteIO: Could not write IPP "
2071 "attribute...");
2072 ipp_buffer_release(buffer);
2073 return (IPP_ERROR);
2074 }
2075
2076 bufptr = buffer;
2077 }
2078
2079 if (i)
2080 {
2081 /*
2082 * Arrays and sets are done by sending additional
2083 * values with a zero-length name...
2084 */
2085
2086 *bufptr++ = attr->value_tag;
2087 *bufptr++ = 0;
2088 *bufptr++ = 0;
2089 }
2090
2091 /*
2092 * Boolean values are 1-byte; 0 = false, 1 = true.
2093 *
2094 * Put the 2-byte length and 1-byte value into the buffer...
2095 */
2096
2097 *bufptr++ = 0;
2098 *bufptr++ = 1;
2099 *bufptr++ = value->boolean;
2100 }
2101 break;
2102
2103 case IPP_TAG_TEXT :
2104 case IPP_TAG_NAME :
2105 case IPP_TAG_KEYWORD :
2106 case IPP_TAG_URI :
2107 case IPP_TAG_URISCHEME :
2108 case IPP_TAG_CHARSET :
2109 case IPP_TAG_LANGUAGE :
2110 case IPP_TAG_MIMETYPE :
2111 for (i = 0, value = attr->values;
2112 i < attr->num_values;
2113 i ++, value ++)
2114 {
2115 if (i)
2116 {
2117 /*
2118 * Arrays and sets are done by sending additional
2119 * values with a zero-length name...
2120 */
2121
2122 DEBUG_printf(("ippWriteIO: writing value tag=%x(%s)\n",
2123 attr->value_tag,
2124 ippTagString(attr->value_tag)));
2125 DEBUG_printf(("ippWriteIO: writing name=0,\"\"\n"));
2126
2127 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
2128 {
2129 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2130 {
2131 DEBUG_puts("ippWriteIO: Could not write IPP "
2132 "attribute...");
2133 ipp_buffer_release(buffer);
2134 return (IPP_ERROR);
2135 }
2136
2137 bufptr = buffer;
2138 }
2139
2140 *bufptr++ = attr->value_tag;
2141 *bufptr++ = 0;
2142 *bufptr++ = 0;
2143 }
2144
2145 if (value->string.text != NULL)
2146 n = (int)strlen(value->string.text);
2147 else
2148 n = 0;
2149
2150 if (n > (IPP_BUF_SIZE - 2))
2151 {
2152 DEBUG_printf(("ippWriteIO: String too long (%d)\n", n));
2153 ipp_buffer_release(buffer);
2154 return (IPP_ERROR);
2155 }
2156
2157 DEBUG_printf(("ippWriteIO: writing string=%d,\"%s\"\n", n,
2158 value->string.text));
2159
2160 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
2161 {
2162 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2163 {
2164 DEBUG_puts("ippWriteIO: Could not write IPP "
2165 "attribute...");
2166 ipp_buffer_release(buffer);
2167 return (IPP_ERROR);
2168 }
2169
2170 bufptr = buffer;
2171 }
2172
2173 /*
2174 * All simple strings consist of the 2-byte length and
2175 * character data without the trailing nul normally found
2176 * in C strings. Also, strings cannot be longer than IPP_MAX_LENGTH
2177 * bytes since the 2-byte length is a signed (twos-complement)
2178 * value.
2179 *
2180 * Put the 2-byte length and string characters in the buffer.
2181 */
2182
2183 *bufptr++ = n >> 8;
2184 *bufptr++ = n;
2185
2186 if (n > 0)
2187 {
2188 memcpy(bufptr, value->string.text, n);
2189 bufptr += n;
2190 }
2191 }
2192 break;
2193
2194 case IPP_TAG_DATE :
2195 for (i = 0, value = attr->values;
2196 i < attr->num_values;
2197 i ++, value ++)
2198 {
2199 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 16)
2200 {
2201 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2202 {
2203 DEBUG_puts("ippWriteIO: Could not write IPP "
2204 "attribute...");
2205 ipp_buffer_release(buffer);
2206 return (IPP_ERROR);
2207 }
2208
2209 bufptr = buffer;
2210 }
2211
2212 if (i)
2213 {
2214 /*
2215 * Arrays and sets are done by sending additional
2216 * values with a zero-length name...
2217 */
2218
2219 *bufptr++ = attr->value_tag;
2220 *bufptr++ = 0;
2221 *bufptr++ = 0;
2222 }
2223
2224 /*
2225 * Date values consist of a 2-byte length and an
2226 * 11-byte date/time structure defined by RFC 1903.
2227 *
2228 * Put the 2-byte length and 11-byte date/time
2229 * structure in the buffer.
2230 */
2231
2232 *bufptr++ = 0;
2233 *bufptr++ = 11;
2234 memcpy(bufptr, value->date, 11);
2235 bufptr += 11;
2236 }
2237 break;
2238
2239 case IPP_TAG_RESOLUTION :
2240 for (i = 0, value = attr->values;
2241 i < attr->num_values;
2242 i ++, value ++)
2243 {
2244 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 14)
2245 {
2246 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2247 {
2248 DEBUG_puts("ippWriteIO: Could not write IPP "
2249 "attribute...");
2250 ipp_buffer_release(buffer);
2251 return (IPP_ERROR);
2252 }
2253
2254 bufptr = buffer;
2255 }
2256
2257 if (i)
2258 {
2259 /*
2260 * Arrays and sets are done by sending additional
2261 * values with a zero-length name...
2262 */
2263
2264 *bufptr++ = attr->value_tag;
2265 *bufptr++ = 0;
2266 *bufptr++ = 0;
2267 }
2268
2269 /*
2270 * Resolution values consist of a 2-byte length,
2271 * 4-byte horizontal resolution value, 4-byte vertical
2272 * resolution value, and a 1-byte units value.
2273 *
2274 * Put the 2-byte length and resolution value data
2275 * into the buffer.
2276 */
2277
2278 *bufptr++ = 0;
2279 *bufptr++ = 9;
2280 *bufptr++ = value->resolution.xres >> 24;
2281 *bufptr++ = value->resolution.xres >> 16;
2282 *bufptr++ = value->resolution.xres >> 8;
2283 *bufptr++ = value->resolution.xres;
2284 *bufptr++ = value->resolution.yres >> 24;
2285 *bufptr++ = value->resolution.yres >> 16;
2286 *bufptr++ = value->resolution.yres >> 8;
2287 *bufptr++ = value->resolution.yres;
2288 *bufptr++ = value->resolution.units;
2289 }
2290 break;
2291
2292 case IPP_TAG_RANGE :
2293 for (i = 0, value = attr->values;
2294 i < attr->num_values;
2295 i ++, value ++)
2296 {
2297 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 13)
2298 {
2299 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2300 {
2301 DEBUG_puts("ippWriteIO: Could not write IPP "
2302 "attribute...");
2303 ipp_buffer_release(buffer);
2304 return (IPP_ERROR);
2305 }
2306
2307 bufptr = buffer;
2308 }
2309
2310 if (i)
2311 {
2312 /*
2313 * Arrays and sets are done by sending additional
2314 * values with a zero-length name...
2315 */
2316
2317 *bufptr++ = attr->value_tag;
2318 *bufptr++ = 0;
2319 *bufptr++ = 0;
2320 }
2321
2322 /*
2323 * Range values consist of a 2-byte length,
2324 * 4-byte lower value, and 4-byte upper value.
2325 *
2326 * Put the 2-byte length and range value data
2327 * into the buffer.
2328 */
2329
2330 *bufptr++ = 0;
2331 *bufptr++ = 8;
2332 *bufptr++ = value->range.lower >> 24;
2333 *bufptr++ = value->range.lower >> 16;
2334 *bufptr++ = value->range.lower >> 8;
2335 *bufptr++ = value->range.lower;
2336 *bufptr++ = value->range.upper >> 24;
2337 *bufptr++ = value->range.upper >> 16;
2338 *bufptr++ = value->range.upper >> 8;
2339 *bufptr++ = value->range.upper;
2340 }
2341 break;
2342
2343 case IPP_TAG_TEXTLANG :
2344 case IPP_TAG_NAMELANG :
2345 for (i = 0, value = attr->values;
2346 i < attr->num_values;
2347 i ++, value ++)
2348 {
2349 if (i)
2350 {
2351 /*
2352 * Arrays and sets are done by sending additional
2353 * values with a zero-length name...
2354 */
2355
2356 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
2357 {
2358 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2359 {
2360 DEBUG_puts("ippWriteIO: Could not write IPP "
2361 "attribute...");
2362 ipp_buffer_release(buffer);
2363 return (IPP_ERROR);
2364 }
2365
2366 bufptr = buffer;
2367 }
2368
2369 *bufptr++ = attr->value_tag;
2370 *bufptr++ = 0;
2371 *bufptr++ = 0;
2372 }
2373
2374 /*
2375 * textWithLanguage and nameWithLanguage values consist
2376 * of a 2-byte length for both strings and their
2377 * individual lengths, a 2-byte length for the
2378 * character string, the character string without the
2379 * trailing nul, a 2-byte length for the character
2380 * set string, and the character set string without
2381 * the trailing nul.
2382 */
2383
2384 n = 4;
2385
2386 if (value->string.charset != NULL)
2387 n += (int)strlen(value->string.charset);
2388
2389 if (value->string.text != NULL)
2390 n += (int)strlen(value->string.text);
2391
2392 if (n > (IPP_BUF_SIZE - 2))
2393 {
2394 DEBUG_printf(("ippWriteIO: text/nameWithLanguage value "
2395 "too long (%d)\n", n));
2396 ipp_buffer_release(buffer);
2397 return (IPP_ERROR);
2398 }
2399
2400 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
2401 {
2402 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2403 {
2404 DEBUG_puts("ippWriteIO: Could not write IPP "
2405 "attribute...");
2406 ipp_buffer_release(buffer);
2407 return (IPP_ERROR);
2408 }
2409
2410 bufptr = buffer;
2411 }
2412
2413 /* Length of entire value */
2414 *bufptr++ = n >> 8;
2415 *bufptr++ = n;
2416
2417 /* Length of charset */
2418 if (value->string.charset != NULL)
2419 n = (int)strlen(value->string.charset);
2420 else
2421 n = 0;
2422
2423 *bufptr++ = n >> 8;
2424 *bufptr++ = n;
2425
2426 /* Charset */
2427 if (n > 0)
2428 {
2429 memcpy(bufptr, value->string.charset, n);
2430 bufptr += n;
2431 }
2432
2433 /* Length of text */
2434 if (value->string.text != NULL)
2435 n = (int)strlen(value->string.text);
2436 else
2437 n = 0;
2438
2439 *bufptr++ = n >> 8;
2440 *bufptr++ = n;
2441
2442 /* Text */
2443 if (n > 0)
2444 {
2445 memcpy(bufptr, value->string.text, n);
2446 bufptr += n;
2447 }
2448 }
2449 break;
2450
2451 case IPP_TAG_BEGIN_COLLECTION :
2452 for (i = 0, value = attr->values;
2453 i < attr->num_values;
2454 i ++, value ++)
2455 {
2456 /*
2457 * Collections are written with the begin-collection
2458 * tag first with a value of 0 length, followed by the
2459 * attributes in the collection, then the end-collection
2460 * value...
2461 */
2462
2463 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 5)
2464 {
2465 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2466 {
2467 DEBUG_puts("ippWriteIO: Could not write IPP "
2468 "attribute...");
2469 ipp_buffer_release(buffer);
2470 return (IPP_ERROR);
2471 }
2472
2473 bufptr = buffer;
2474 }
2475
2476 if (i)
2477 {
2478 /*
2479 * Arrays and sets are done by sending additional
2480 * values with a zero-length name...
2481 */
2482
2483 *bufptr++ = attr->value_tag;
2484 *bufptr++ = 0;
2485 *bufptr++ = 0;
2486 }
2487
2488 /*
2489 * Write a data length of 0 and flush the buffer...
2490 */
2491
2492 *bufptr++ = 0;
2493 *bufptr++ = 0;
2494
2495 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2496 {
2497 DEBUG_puts("ippWriteIO: Could not write IPP "
2498 "attribute...");
2499 ipp_buffer_release(buffer);
2500 return (IPP_ERROR);
2501 }
2502
2503 bufptr = buffer;
2504
2505 /*
2506 * Then write the collection attribute...
2507 */
2508
2509 value->collection->state = IPP_IDLE;
2510
2511 if (ippWriteIO(dst, cb, 1, ipp,
2512 value->collection) == IPP_ERROR)
2513 {
2514 DEBUG_puts("ippWriteIO: Unable to write collection value");
2515 ipp_buffer_release(buffer);
2516 return (IPP_ERROR);
2517 }
2518 }
2519 break;
2520
2521 default :
2522 for (i = 0, value = attr->values;
2523 i < attr->num_values;
2524 i ++, value ++)
2525 {
2526 if (i)
2527 {
2528 /*
2529 * Arrays and sets are done by sending additional
2530 * values with a zero-length name...
2531 */
2532
2533 if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3)
2534 {
2535 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2536 {
2537 DEBUG_puts("ippWriteIO: Could not write IPP "
2538 "attribute...");
2539 ipp_buffer_release(buffer);
2540 return (IPP_ERROR);
2541 }
2542
2543 bufptr = buffer;
2544 }
2545
2546 *bufptr++ = attr->value_tag;
2547 *bufptr++ = 0;
2548 *bufptr++ = 0;
2549 }
2550
2551 /*
2552 * An unknown value might some new value that a
2553 * vendor has come up with. It consists of a
2554 * 2-byte length and the bytes in the unknown
2555 * value buffer.
2556 */
2557
2558 n = value->unknown.length;
2559
2560 if (n > (IPP_BUF_SIZE - 2))
2561 {
2562 DEBUG_printf(("ippWriteIO: Data length too long (%d)\n",
2563 n));
2564 ipp_buffer_release(buffer);
2565 return (IPP_ERROR);
2566 }
2567
2568 if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2))
2569 {
2570 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2571 {
2572 DEBUG_puts("ippWriteIO: Could not write IPP "
2573 "attribute...");
2574 ipp_buffer_release(buffer);
2575 return (IPP_ERROR);
2576 }
2577
2578 bufptr = buffer;
2579 }
2580
2581 /* Length of unknown value */
2582 *bufptr++ = n >> 8;
2583 *bufptr++ = n;
2584
2585 /* Value */
2586 if (n > 0)
2587 {
2588 memcpy(bufptr, value->unknown.data, n);
2589 bufptr += n;
2590 }
2591 }
2592 break;
2593 }
2594
2595 /*
2596 * Write the data out...
2597 */
2598
2599 if ((*cb)(dst, buffer, (int)(bufptr - buffer)) < 0)
2600 {
2601 DEBUG_puts("ippWriteIO: Could not write IPP attribute...");
2602 ipp_buffer_release(buffer);
2603 return (IPP_ERROR);
2604 }
2605
2606 DEBUG_printf(("ippWriteIO: wrote %d bytes\n",
2607 (int)(bufptr - buffer)));
2608
2609 /*
2610 * If blocking is disabled, stop here...
2611 */
2612
2613 if (!blocking)
2614 break;
2615 }
2616
2617 if (ipp->current == NULL)
2618 {
2619 /*
2620 * Done with all of the attributes; add the end-of-attributes
2621 * tag or end-collection attribute...
2622 */
2623
2624 if (parent == NULL)
2625 {
2626 buffer[0] = IPP_TAG_END;
2627 n = 1;
2628 }
2629 else
2630 {
2631 buffer[0] = IPP_TAG_END_COLLECTION;
2632 buffer[1] = 0; /* empty name */
2633 buffer[2] = 0;
2634 buffer[3] = 0; /* empty value */
2635 buffer[4] = 0;
2636 n = 5;
2637 }
2638
2639 if ((*cb)(dst, buffer, n) < 0)
2640 {
2641 DEBUG_puts("ippWriteIO: Could not write IPP end-tag...");
2642 ipp_buffer_release(buffer);
2643 return (IPP_ERROR);
2644 }
2645
2646 ipp->state = IPP_DATA;
2647 }
2648 break;
2649
2650 case IPP_DATA :
2651 break;
2652
2653 default :
2654 break; /* anti-compiler-warning-code */
2655 }
2656
2657 ipp_buffer_release(buffer);
2658
2659 return (ipp->state);
2660 }
2661
2662
2663 /*
2664 * '_ippAddAttr()' - Add a new attribute to the request.
2665 */
2666
2667 ipp_attribute_t * /* O - New attribute */
2668 _ippAddAttr(ipp_t *ipp, /* I - IPP message */
2669 int num_values) /* I - Number of values */
2670 {
2671 ipp_attribute_t *attr; /* New attribute */
2672
2673
2674 DEBUG_printf(("_ippAddAttr(ipp=%p, num_values=%d)\n", ipp, num_values));
2675
2676 if (!ipp || num_values < 0)
2677 return (NULL);
2678
2679 attr = calloc(sizeof(ipp_attribute_t) +
2680 (num_values - 1) * sizeof(ipp_value_t), 1);
2681
2682 if (attr != NULL)
2683 {
2684 attr->num_values = num_values;
2685
2686 if (ipp->last == NULL)
2687 ipp->attrs = attr;
2688 else
2689 ipp->last->next = attr;
2690
2691 ipp->last = attr;
2692 }
2693
2694 DEBUG_printf(("_ippAddAttr(): %p\n", attr));
2695
2696 return (attr);
2697 }
2698
2699
2700 /*
2701 * '_ippFreeAttr()' - Free an attribute.
2702 */
2703
2704 void
2705 _ippFreeAttr(ipp_attribute_t *attr) /* I - Attribute to free */
2706 {
2707 int i; /* Looping var */
2708 ipp_value_t *value; /* Current value */
2709
2710
2711 DEBUG_printf(("_ippFreeAttr(attr=%p)\n", attr));
2712
2713 switch (attr->value_tag)
2714 {
2715 case IPP_TAG_TEXT :
2716 case IPP_TAG_NAME :
2717 case IPP_TAG_KEYWORD :
2718 case IPP_TAG_URI :
2719 case IPP_TAG_URISCHEME :
2720 case IPP_TAG_CHARSET :
2721 case IPP_TAG_LANGUAGE :
2722 case IPP_TAG_MIMETYPE :
2723 for (i = 0, value = attr->values;
2724 i < attr->num_values;
2725 i ++, value ++)
2726 _cupsStrFree(value->string.text);
2727 break;
2728
2729 case IPP_TAG_TEXTLANG :
2730 case IPP_TAG_NAMELANG :
2731 for (i = 0, value = attr->values;
2732 i < attr->num_values;
2733 i ++, value ++)
2734 {
2735 if (value->string.charset && i == 0)
2736 _cupsStrFree(value->string.charset);
2737 _cupsStrFree(value->string.text);
2738 }
2739 break;
2740
2741 case IPP_TAG_INTEGER :
2742 case IPP_TAG_ENUM :
2743 case IPP_TAG_BOOLEAN :
2744 case IPP_TAG_DATE :
2745 case IPP_TAG_RESOLUTION :
2746 case IPP_TAG_RANGE :
2747 break;
2748
2749 case IPP_TAG_BEGIN_COLLECTION :
2750 for (i = 0, value = attr->values;
2751 i < attr->num_values;
2752 i ++, value ++)
2753 ippDelete(value->collection);
2754 break;
2755
2756 case IPP_TAG_STRING :
2757 for (i = 0, value = attr->values;
2758 i < attr->num_values;
2759 i ++, value ++)
2760 free(value->unknown.data);
2761 break;
2762
2763 default :
2764 if (!((int)attr->value_tag & IPP_TAG_COPY))
2765 {
2766 for (i = 0, value = attr->values;
2767 i < attr->num_values;
2768 i ++, value ++)
2769 if (value->unknown.data)
2770 free(value->unknown.data);
2771 }
2772 break;
2773 }
2774
2775 if (attr->name)
2776 _cupsStrFree(attr->name);
2777
2778 free(attr);
2779 }
2780
2781
2782 /*
2783 * 'ipp_buffer_get()' - Get a read/write buffer.
2784 */
2785
2786 static unsigned char * /* O - Buffer */
2787 ipp_buffer_get(void)
2788 {
2789 _ipp_buffer_t *buffer; /* Current buffer */
2790 _cups_globals_t *cg = _cupsGlobals();
2791 /* Global data */
2792
2793
2794 for (buffer = cg->ipp_buffers; buffer; buffer = buffer->next)
2795 if (!buffer->used)
2796 {
2797 buffer->used = 1;
2798 return (buffer->d);
2799 }
2800
2801 if ((buffer = malloc(sizeof(_ipp_buffer_t))) == NULL)
2802 return (NULL);
2803
2804 buffer->used = 1;
2805 buffer->next = cg->ipp_buffers;
2806 cg->ipp_buffers = buffer;
2807
2808 return (buffer->d);
2809 }
2810
2811
2812 /*
2813 * 'ipp_buffer_release()' - Release a read/write buffer.
2814 */
2815
2816 static void
2817 ipp_buffer_release(unsigned char *b) /* I - Buffer to release */
2818 {
2819 ((_ipp_buffer_t *)b)->used = 0;
2820 }
2821
2822
2823 /*
2824 * 'ipp_length()' - Compute the length of an IPP message or collection value.
2825 */
2826
2827 static size_t /* O - Size of IPP message */
2828 ipp_length(ipp_t *ipp, /* I - IPP message or collection */
2829 int collection) /* I - 1 if a collection, 0 otherwise */
2830 {
2831 int i; /* Looping var */
2832 int bytes; /* Number of bytes */
2833 ipp_attribute_t *attr; /* Current attribute */
2834 ipp_tag_t group; /* Current group */
2835 ipp_value_t *value; /* Current value */
2836
2837
2838 if (ipp == NULL)
2839 return (0);
2840
2841 /*
2842 * Start with 8 bytes for the IPP message header...
2843 */
2844
2845 bytes = collection ? 0 : 8;
2846
2847 /*
2848 * Then add the lengths of each attribute...
2849 */
2850
2851 group = IPP_TAG_ZERO;
2852
2853 for (attr = ipp->attrs; attr != NULL; attr = attr->next)
2854 {
2855 if (attr->group_tag != group && !collection)
2856 {
2857 group = attr->group_tag;
2858 if (group == IPP_TAG_ZERO)
2859 continue;
2860
2861 bytes ++; /* Group tag */
2862 }
2863
2864 if (!attr->name)
2865 continue;
2866
2867 DEBUG_printf(("ipp_length: attr->name=\"%s\", attr->num_values=%d, "
2868 "bytes=%d\n", attr->name, attr->num_values, bytes));
2869
2870 bytes += (int)strlen(attr->name); /* Name */
2871 bytes += attr->num_values; /* Value tag for each value */
2872 bytes += 2 * attr->num_values; /* Name lengths */
2873 bytes += 2 * attr->num_values; /* Value lengths */
2874
2875 if (collection)
2876 bytes += 5; /* Add membername overhead */
2877
2878 switch (attr->value_tag & ~IPP_TAG_COPY)
2879 {
2880 case IPP_TAG_INTEGER :
2881 case IPP_TAG_ENUM :
2882 bytes += 4 * attr->num_values;
2883 break;
2884
2885 case IPP_TAG_BOOLEAN :
2886 bytes += attr->num_values;
2887 break;
2888
2889 case IPP_TAG_TEXT :
2890 case IPP_TAG_NAME :
2891 case IPP_TAG_KEYWORD :
2892 case IPP_TAG_URI :
2893 case IPP_TAG_URISCHEME :
2894 case IPP_TAG_CHARSET :
2895 case IPP_TAG_LANGUAGE :
2896 case IPP_TAG_MIMETYPE :
2897 for (i = 0, value = attr->values;
2898 i < attr->num_values;
2899 i ++, value ++)
2900 if (value->string.text != NULL)
2901 bytes += (int)strlen(value->string.text);
2902 break;
2903
2904 case IPP_TAG_DATE :
2905 bytes += 11 * attr->num_values;
2906 break;
2907
2908 case IPP_TAG_RESOLUTION :
2909 bytes += 9 * attr->num_values;
2910 break;
2911
2912 case IPP_TAG_RANGE :
2913 bytes += 8 * attr->num_values;
2914 break;
2915
2916 case IPP_TAG_TEXTLANG :
2917 case IPP_TAG_NAMELANG :
2918 bytes += 4 * attr->num_values;/* Charset + text length */
2919
2920 for (i = 0, value = attr->values;
2921 i < attr->num_values;
2922 i ++, value ++)
2923 {
2924 if (value->string.charset != NULL)
2925 bytes += (int)strlen(value->string.charset);
2926
2927 if (value->string.text != NULL)
2928 bytes += (int)strlen(value->string.text);
2929 }
2930 break;
2931
2932 case IPP_TAG_BEGIN_COLLECTION :
2933 for (i = 0, value = attr->values;
2934 i < attr->num_values;
2935 i ++, value ++)
2936 bytes += (int)ipp_length(value->collection, 1);
2937 break;
2938
2939 default :
2940 for (i = 0, value = attr->values;
2941 i < attr->num_values;
2942 i ++, value ++)
2943 bytes += value->unknown.length;
2944 break;
2945 }
2946 }
2947
2948 /*
2949 * Finally, add 1 byte for the "end of attributes" tag or 5 bytes
2950 * for the "end of collection" tag and return...
2951 */
2952
2953 if (collection)
2954 bytes += 5;
2955 else
2956 bytes ++;
2957
2958 DEBUG_printf(("ipp_length: bytes=%d\n", bytes));
2959
2960 return (bytes);
2961 }
2962
2963
2964 /*
2965 * 'ipp_read_http()' - Semi-blocking read on a HTTP connection...
2966 */
2967
2968 static ssize_t /* O - Number of bytes read */
2969 ipp_read_http(http_t *http, /* I - Client connection */
2970 ipp_uchar_t *buffer, /* O - Buffer for data */
2971 size_t length) /* I - Total length */
2972 {
2973 int tbytes, /* Total bytes read */
2974 bytes; /* Bytes read this pass */
2975 char len[32]; /* Length string */
2976
2977
2978 DEBUG_printf(("ipp_read_http(http=%p, buffer=%p, length=%d)\n",
2979 http, buffer, (int)length));
2980
2981 /*
2982 * Loop until all bytes are read...
2983 */
2984
2985 for (tbytes = 0, bytes = 0;
2986 tbytes < (int)length;
2987 tbytes += bytes, buffer += bytes)
2988 {
2989 DEBUG_printf(("ipp_read_http: tbytes=%d, http->state=%d\n", tbytes,
2990 http->state));
2991
2992 if (http->state == HTTP_WAITING)
2993 break;
2994
2995 if (http->used > 0 && http->data_encoding == HTTP_ENCODE_LENGTH)
2996 {
2997 /*
2998 * Do "fast read" from HTTP buffer directly...
2999 */
3000
3001 if (http->used > (int)(length - tbytes))
3002 bytes = (int)(length - tbytes);
3003 else
3004 bytes = http->used;
3005
3006 if (bytes == 1)
3007 buffer[0] = http->buffer[0];
3008 else
3009 memcpy(buffer, http->buffer, bytes);
3010
3011 http->used -= bytes;
3012 http->data_remaining -= bytes;
3013
3014 if (http->data_remaining <= INT_MAX)
3015 http->_data_remaining = (int)http->data_remaining;
3016 else
3017 http->_data_remaining = INT_MAX;
3018
3019 if (http->used > 0)
3020 memmove(http->buffer, http->buffer + bytes, http->used);
3021
3022 if (http->data_remaining == 0)
3023 {
3024 if (http->data_encoding == HTTP_ENCODE_CHUNKED)
3025 {
3026 /*
3027 * Get the trailing CR LF after the chunk...
3028 */
3029
3030 if (!httpGets(len, sizeof(len), http))
3031 return (-1);
3032 }
3033
3034 if (http->data_encoding != HTTP_ENCODE_CHUNKED)
3035 {
3036 if (http->state == HTTP_POST_RECV)
3037 http->state ++;
3038 else
3039 http->state = HTTP_WAITING;
3040 }
3041 }
3042 }
3043 else
3044 {
3045 /*
3046 * Wait a maximum of 1 second for data...
3047 */
3048
3049 if (!http->blocking)
3050 {
3051 /*
3052 * Wait up to 10 seconds for more data on non-blocking sockets...
3053 */
3054
3055 if (!httpWait(http, 10000))
3056 {
3057 /*
3058 * Signal no data...
3059 */
3060
3061 bytes = -1;
3062 break;
3063 }
3064 }
3065
3066 if ((bytes = httpRead2(http, (char *)buffer, length - tbytes)) < 0)
3067 {
3068 #ifdef WIN32
3069 break;
3070 #else
3071 if (errno != EAGAIN && errno != EINTR)
3072 break;
3073
3074 bytes = 0;
3075 #endif /* WIN32 */
3076 }
3077 else if (bytes == 0)
3078 break;
3079 }
3080 }
3081
3082 /*
3083 * Return the number of bytes read...
3084 */
3085
3086 if (tbytes == 0 && bytes < 0)
3087 tbytes = -1;
3088
3089 DEBUG_printf(("ipp_read_http: returning %d bytes...\n", tbytes));
3090
3091 return (tbytes);
3092 }
3093
3094
3095 /*
3096 * 'ipp_read_file()' - Read IPP data from a file.
3097 */
3098
3099 static ssize_t /* O - Number of bytes read */
3100 ipp_read_file(int *fd, /* I - File descriptor */
3101 ipp_uchar_t *buffer, /* O - Read buffer */
3102 size_t length) /* I - Number of bytes to read */
3103 {
3104 #ifdef WIN32
3105 return ((ssize_t)read(*fd, buffer, (unsigned)length));
3106 #else
3107 return (read(*fd, buffer, length));
3108 #endif /* WIN32 */
3109 }
3110
3111
3112 /*
3113 * 'ipp_write_file()' - Write IPP data to a file.
3114 */
3115
3116 static ssize_t /* O - Number of bytes written */
3117 ipp_write_file(int *fd, /* I - File descriptor */
3118 ipp_uchar_t *buffer, /* I - Data to write */
3119 size_t length) /* I - Number of bytes to write */
3120 {
3121 #ifdef WIN32
3122 return ((ssize_t)write(*fd, buffer, (unsigned)length));
3123 #else
3124 return (write(*fd, buffer, length));
3125 #endif /* WIN32 */
3126 }
3127
3128
3129 #ifdef __linux
3130 /*
3131 * The following symbol definitions are provided only for KDE
3132 * compatibility during the CUPS 1.2 testing period and will be
3133 * removed in a future release of CUPS. These are PRIVATE APIs
3134 * from CUPS 1.1.x that the KDE developers chose to use...
3135 */
3136
3137 ipp_attribute_t * /* O - New attribute */
3138 _ipp_add_attr(ipp_t *ipp, /* I - IPP message */
3139 int num_values) /* I - Number of values */
3140 {
3141 return (_ippAddAttr(ipp, num_values));
3142 }
3143
3144 void
3145 _ipp_free_attr(ipp_attribute_t *attr) /* I - Attribute to free */
3146 {
3147 _ippFreeAttr(attr);
3148 }
3149 #endif /* __linux */
3150
3151
3152 /*
3153 * End of "$Id: ipp.c 7847 2008-08-19 04:22:14Z mike $".
3154 */
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