D-Bus: dbus-marshal-basic.c Source File

D-Bus 1.16.2

dbus-marshal-basic.c
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-marshal-basic.c Marshalling routines for basic (primitive) types
3 *
4 * Copyright (C) 2002 CodeFactory AB
5 * Copyright (C) 2003, 2004, 2005 Red Hat, Inc.
6 *
7 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
8 *
9 * Licensed under the Academic Free License version 2.1
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 *
25 */
26
27#include <config.h>
28#include "dbus-internals.h"
29#include "dbus-marshal-basic.h"
30#include "dbus-signature.h"
31#include <dbus/dbus-test-tap.h>
32
33#include <string.h>
34
35#define _DBUS_ASSERT_ALIGNMENT(type, op, val) \
36 _DBUS_STATIC_ASSERT (_DBUS_ALIGNOF (type) op val)
37#define _DBUS_ASSERT_CMP_ALIGNMENT(left, op, right) \
38 _DBUS_STATIC_ASSERT (_DBUS_ALIGNOF (left) op _DBUS_ALIGNOF (right))
39
40/* True by definition, but just for completeness... */
41_DBUS_STATIC_ASSERT (sizeof (char) == 1);
42_DBUS_ASSERT_ALIGNMENT (char, ==, 1);
43
44_DBUS_STATIC_ASSERT (sizeof (dbus_int16_t) == 2);
45_DBUS_ASSERT_ALIGNMENT (dbus_int16_t, <=, 2);
46_DBUS_STATIC_ASSERT (sizeof (dbus_uint16_t) == 2);
47_DBUS_ASSERT_ALIGNMENT (dbus_uint16_t, <=, 2);
48_DBUS_ASSERT_CMP_ALIGNMENT (dbus_uint16_t, ==, dbus_int16_t);
49
50_DBUS_STATIC_ASSERT (sizeof (dbus_int32_t) == 4);
51_DBUS_ASSERT_ALIGNMENT (dbus_int32_t, <=, 4);
52_DBUS_STATIC_ASSERT (sizeof (dbus_uint32_t) == 4);
53_DBUS_ASSERT_ALIGNMENT (dbus_uint32_t, <=, 4);
54_DBUS_ASSERT_CMP_ALIGNMENT (dbus_uint32_t, ==, dbus_int32_t);
55_DBUS_STATIC_ASSERT (sizeof (dbus_bool_t) == 4);
56_DBUS_ASSERT_ALIGNMENT (dbus_bool_t, <=, 4);
57_DBUS_ASSERT_CMP_ALIGNMENT (dbus_uint32_t, ==, dbus_bool_t);
58
59_DBUS_STATIC_ASSERT (sizeof (double) == 8);
60_DBUS_ASSERT_ALIGNMENT (double, <=, 8);
61/* Doubles might sometimes be more strictly aligned than int64, but we
62 * assume they are no less strictly aligned. This means every (double *)
63 * has enough alignment to be treated as though it was a
64 * (dbus_uint64_t *). */
65_DBUS_ASSERT_CMP_ALIGNMENT (dbus_uint64_t, <=, double);
66
67_DBUS_STATIC_ASSERT (sizeof (dbus_int64_t) == 8);
68_DBUS_ASSERT_ALIGNMENT (dbus_int64_t, <=, 8);
69_DBUS_STATIC_ASSERT (sizeof (dbus_uint64_t) == 8);
70_DBUS_ASSERT_ALIGNMENT (dbus_uint64_t, <=, 8);
71_DBUS_ASSERT_CMP_ALIGNMENT (dbus_uint64_t, ==, dbus_int64_t);
72
73_DBUS_STATIC_ASSERT (sizeof (DBusBasicValue) >= 8);
74/* The alignment of a DBusBasicValue might conceivably be > 8 because of the
75 * pointer, so we don't assert about it */
76
77_DBUS_STATIC_ASSERT (sizeof (DBus8ByteStruct) == 8);
78_DBUS_ASSERT_ALIGNMENT (DBus8ByteStruct, <=, 8);
79
94
95static void
96pack_2_octets (dbus_uint16_t value,
97 int byte_order,
98 void *data)
99{
100 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 2) == data);
101
102 if ((byte_order) == DBUS_LITTLE_ENDIAN)
103 *((dbus_uint16_t*)(data)) = DBUS_UINT16_TO_LE (value);
104 else
105 *((dbus_uint16_t*)(data)) = DBUS_UINT16_TO_BE (value);
106}
107
108static void
109pack_4_octets (dbus_uint32_t value,
110 int byte_order,
111 void *data)
112{
113 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 4) == data);
114
115 if ((byte_order) == DBUS_LITTLE_ENDIAN)
116 *((dbus_uint32_t*)(data)) = DBUS_UINT32_TO_LE (value);
117 else
118 *((dbus_uint32_t*)(data)) = DBUS_UINT32_TO_BE (value);
119}
120
121static void
122pack_8_octets (dbus_uint64_t value,
123 int byte_order,
124 void *data)
125{
126 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 8) == data);
127
128 if ((byte_order) == DBUS_LITTLE_ENDIAN)
129 *((dbus_uint64_t*)(data)) = DBUS_UINT64_TO_LE (value);
130 else
131 *((dbus_uint64_t*)(data)) = DBUS_UINT64_TO_BE (value);
132}
133
141void
142_dbus_pack_uint32 (dbus_uint32_t value,
143 int byte_order,
144 unsigned char *data)
145{
146 pack_4_octets (value, byte_order, data);
147}
148
149static void
150swap_8_octets (dbus_uint64_t *value,
151 int byte_order)
152{
153 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
154 {
155 *value = DBUS_UINT64_SWAP_LE_BE (*value);
156 }
157}
158
159#ifndef _dbus_unpack_uint16
167 dbus_uint16_t
168_dbus_unpack_uint16 (int byte_order,
169 const unsigned char *data)
170{
171 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 2) == data);
172
173 if (byte_order == DBUS_LITTLE_ENDIAN)
174 return DBUS_UINT16_FROM_LE (*(dbus_uint16_t *) (void *) data);
175 else
176 return DBUS_UINT16_FROM_BE (*(dbus_uint16_t *) (void *) data);
177}
178#endif /* _dbus_unpack_uint16 */
179
180#ifndef _dbus_unpack_uint32
188 dbus_uint32_t
189_dbus_unpack_uint32 (int byte_order,
190 const unsigned char *data)
191{
192 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 4) == data);
193
194 if (byte_order == DBUS_LITTLE_ENDIAN)
195 return DBUS_UINT32_FROM_LE (*(dbus_uint32_t *) (void *) data);
196 else
197 return DBUS_UINT32_FROM_BE (*(dbus_uint32_t *) (void *) data);
198}
199#endif /* _dbus_unpack_uint32 */
200
201static void
202set_2_octets (DBusString *str,
203 int offset,
204 dbus_uint16_t value,
205 int byte_order)
206{
207 char *data;
208
209 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
210 byte_order == DBUS_BIG_ENDIAN);
211
212 data = _dbus_string_get_data_len (str, offset, 2);
213
214 pack_2_octets (value, byte_order, (unsigned char *) data);
215}
216
217static void
218set_4_octets (DBusString *str,
219 int offset,
220 dbus_uint32_t value,
221 int byte_order)
222{
223 char *data;
224
225 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
226 byte_order == DBUS_BIG_ENDIAN);
227
228 data = _dbus_string_get_data_len (str, offset, 4);
229
230 pack_4_octets (value, byte_order, (unsigned char *) data);
231}
232
233static void
234set_8_octets (DBusString *str,
235 int offset,
236 dbus_uint64_t value,
237 int byte_order)
238{
239 char *data;
240
241 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
242 byte_order == DBUS_BIG_ENDIAN);
243
244 data = _dbus_string_get_data_len (str, offset, 8);
245
246 pack_8_octets (value, byte_order, (unsigned char *) data);
247}
248
259void
260_dbus_marshal_set_uint32 (DBusString *str,
261 int pos,
262 dbus_uint32_t value,
263 int byte_order)
264{
265 set_4_octets (str, pos, value, byte_order);
266}
267
287static dbus_bool_t
288set_string (DBusString *str,
289 int pos,
290 const char *value,
291 int byte_order,
292 int *old_end_pos,
293 int *new_end_pos)
294{
295 int old_len, new_len;
296 DBusString dstr;
297
298 _dbus_string_init_const (&dstr, value);
299
300 _dbus_assert (_DBUS_ALIGN_VALUE (pos, 4) == (unsigned) pos);
301 old_len = _dbus_unpack_uint32 (byte_order,
302 _dbus_string_get_const_udata_len (str, pos, 4));
303
304 new_len = _dbus_string_get_length (&dstr);
305
306 if (!_dbus_string_replace_len (&dstr, 0, new_len,
307 str, pos + 4, old_len))
308 return FALSE;
309
310 _dbus_marshal_set_uint32 (str, pos, new_len, byte_order);
311
312 if (old_end_pos)
313 *old_end_pos = pos + 4 + old_len + 1;
314 if (new_end_pos)
315 *new_end_pos = pos + 4 + new_len + 1;
316
317 return TRUE;
318}
319
333static dbus_bool_t
334set_signature (DBusString *str,
335 int pos,
336 const char *value,
337 int byte_order,
338 int *old_end_pos,
339 int *new_end_pos)
340{
341 int old_len, new_len;
342 DBusString dstr;
343
344 _dbus_string_init_const (&dstr, value);
345
346 old_len = _dbus_string_get_byte (str, pos);
347 new_len = _dbus_string_get_length (&dstr);
348
349 if (!_dbus_string_replace_len (&dstr, 0, new_len,
350 str, pos + 1, old_len))
351 return FALSE;
352
353 _dbus_string_set_byte (str, pos, new_len);
354
355 if (old_end_pos)
356 *old_end_pos = pos + 1 + old_len + 1;
357 if (new_end_pos)
358 *new_end_pos = pos + 1 + new_len + 1;
359
360 return TRUE;
361}
362
376 dbus_bool_t
377_dbus_marshal_set_basic (DBusString *str,
378 int pos,
379 int type,
380 const void *value,
381 int byte_order,
382 int *old_end_pos,
383 int *new_end_pos)
384{
385 /* Static assertions near the top of this file assert that signed and
386 * unsigned 16- and 32-bit quantities have the same alignment, and that
387 * doubles have alignment at least as strict as unsigned int64, so we
388 * don't have to distinguish further: every (double *)
389 * has strong enough alignment to be treated as though it was a
390 * (dbus_uint64_t *). Going via a (void *) means the compiler should
391 * know that pointers can alias each other. */
392 const unsigned char *u8_p;
393 const dbus_uint16_t *u16_p;
394 const dbus_uint32_t *u32_p;
395 const dbus_uint64_t *u64_p;
396 const char * const *string_p;
397
398 switch (type)
399 {
400 case DBUS_TYPE_BYTE:
401 u8_p = value;
402 _dbus_string_set_byte (str, pos, *u8_p);
403 if (old_end_pos)
404 *old_end_pos = pos + 1;
405 if (new_end_pos)
406 *new_end_pos = pos + 1;
407 return TRUE;
408 break;
409 case DBUS_TYPE_INT16:
410 case DBUS_TYPE_UINT16:
411 u16_p = value;
412 pos = _DBUS_ALIGN_VALUE (pos, 2);
413 set_2_octets (str, pos, *u16_p, byte_order);
414 if (old_end_pos)
415 *old_end_pos = pos + 2;
416 if (new_end_pos)
417 *new_end_pos = pos + 2;
418 return TRUE;
419 break;
420 case DBUS_TYPE_BOOLEAN:
421 case DBUS_TYPE_INT32:
422 case DBUS_TYPE_UINT32:
423 case DBUS_TYPE_UNIX_FD:
424 u32_p = value;
425 pos = _DBUS_ALIGN_VALUE (pos, 4);
426 set_4_octets (str, pos, *u32_p, byte_order);
427 if (old_end_pos)
428 *old_end_pos = pos + 4;
429 if (new_end_pos)
430 *new_end_pos = pos + 4;
431 return TRUE;
432 break;
433 case DBUS_TYPE_INT64:
434 case DBUS_TYPE_UINT64:
435 case DBUS_TYPE_DOUBLE:
436 u64_p = value;
437 pos = _DBUS_ALIGN_VALUE (pos, 8);
438 set_8_octets (str, pos, *u64_p, byte_order);
439 if (old_end_pos)
440 *old_end_pos = pos + 8;
441 if (new_end_pos)
442 *new_end_pos = pos + 8;
443 return TRUE;
444 break;
445 case DBUS_TYPE_STRING:
446 case DBUS_TYPE_OBJECT_PATH:
447 string_p = value;
448 pos = _DBUS_ALIGN_VALUE (pos, 4);
449 _dbus_assert (*string_p != NULL);
450 return set_string (str, pos, *string_p, byte_order,
451 old_end_pos, new_end_pos);
452 break;
453 case DBUS_TYPE_SIGNATURE:
454 string_p = value;
455 _dbus_assert (*string_p != NULL);
456 return set_signature (str, pos, *string_p, byte_order,
457 old_end_pos, new_end_pos);
458 break;
459 default:
460 _dbus_assert_not_reached ("not a basic type");
461 return FALSE;
462 break;
463 }
464}
465
475 dbus_uint32_t
476_dbus_marshal_read_uint32 (const DBusString *str,
477 int pos,
478 int byte_order,
479 int *new_pos)
480{
481 pos = _DBUS_ALIGN_VALUE (pos, 4);
482
483 if (new_pos)
484 *new_pos = pos + 4;
485
486 _dbus_assert (pos + 4 <= _dbus_string_get_length (str));
487
488 return _dbus_unpack_uint32 (byte_order,
489 _dbus_string_get_const_udata (str) + pos);
490}
491
513void
514_dbus_marshal_read_basic (const DBusString *str,
515 int pos,
516 int type,
517 void *value,
518 int byte_order,
519 int *new_pos)
520{
521 const char *str_data;
522
523 _dbus_assert (dbus_type_is_basic (type));
524
525 str_data = _dbus_string_get_const_data (str);
526
527 /* Below we volatile types to avoid aliasing issues;
528 * see http://bugs.freedesktop.org/show_bug.cgi?id=20137
529 */
530
531 switch (type)
532 {
533 case DBUS_TYPE_BYTE:
534 {
535 volatile unsigned char *vp = value;
536 *vp = (unsigned char) _dbus_string_get_byte (str, pos);
537 (pos)++;
538 }
539 break;
540 case DBUS_TYPE_INT16:
541 case DBUS_TYPE_UINT16:
542 {
543 volatile dbus_uint16_t *vp = value;
544 pos = _DBUS_ALIGN_VALUE (pos, 2);
545 *vp = *(dbus_uint16_t *) (void *) (str_data + pos);
546 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
547 *vp = DBUS_UINT16_SWAP_LE_BE (*vp);
548 pos += 2;
549 }
550 break;
551 case DBUS_TYPE_INT32:
552 case DBUS_TYPE_UINT32:
553 case DBUS_TYPE_BOOLEAN:
554 case DBUS_TYPE_UNIX_FD:
555 {
556 volatile dbus_uint32_t *vp = value;
557 pos = _DBUS_ALIGN_VALUE (pos, 4);
558 *vp = *(dbus_uint32_t *) (void *) (str_data + pos);
559 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
560 *vp = DBUS_UINT32_SWAP_LE_BE (*vp);
561 pos += 4;
562 }
563 break;
564 case DBUS_TYPE_INT64:
565 case DBUS_TYPE_UINT64:
566 case DBUS_TYPE_DOUBLE:
567 {
568 volatile dbus_uint64_t *vp = value;
569 pos = _DBUS_ALIGN_VALUE (pos, 8);
570 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
571 *vp = DBUS_UINT64_SWAP_LE_BE (
572 *(dbus_uint64_t *) (void *) (str_data + pos));
573 else
574 *vp = *(dbus_uint64_t *) (void *) (str_data + pos);
575 pos += 8;
576 }
577 break;
578 case DBUS_TYPE_STRING:
579 case DBUS_TYPE_OBJECT_PATH:
580 {
581 int len;
582 volatile char **vp = value;
583
584 len = _dbus_marshal_read_uint32 (str, pos, byte_order, &pos);
585
586 *vp = (char*) str_data + pos;
587
588 pos += len + 1; /* length plus nul */
589 }
590 break;
591 case DBUS_TYPE_SIGNATURE:
592 {
593 int len;
594 volatile char **vp = value;
595
596 len = _dbus_string_get_byte (str, pos);
597 pos += 1;
598
599 *vp = (char*) str_data + pos;
600
601 pos += len + 1; /* length plus nul */
602 }
603 break;
604 default:
605 _dbus_warn_check_failed ("type %s %d not a basic type",
606 _dbus_type_to_string (type), type);
607 _dbus_assert_not_reached ("not a basic type");
608 break;
609 }
610
611 if (new_pos)
612 *new_pos = pos;
613}
614
615static dbus_bool_t
616marshal_2_octets (DBusString *str,
617 int insert_at,
618 dbus_uint16_t value,
619 int byte_order,
620 int *pos_after)
621{
622 dbus_bool_t retval;
623 int orig_len;
624
625 _DBUS_STATIC_ASSERT (sizeof (value) == 2);
626
627 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
628 value = DBUS_UINT16_SWAP_LE_BE (value);
629
630 orig_len = _dbus_string_get_length (str);
631
632 retval = _dbus_string_insert_2_aligned (str, insert_at,
633 (const unsigned char *)&value);
634
635 if (pos_after)
636 {
637 *pos_after = insert_at + (_dbus_string_get_length (str) - orig_len);
638 _dbus_assert (*pos_after <= _dbus_string_get_length (str));
639 }
640
641 return retval;
642}
643
644static dbus_bool_t
645marshal_4_octets (DBusString *str,
646 int insert_at,
647 dbus_uint32_t value,
648 int byte_order,
649 int *pos_after)
650{
651 dbus_bool_t retval;
652 int orig_len;
653
654 _DBUS_STATIC_ASSERT (sizeof (value) == 4);
655
656 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
657 value = DBUS_UINT32_SWAP_LE_BE (value);
658
659 orig_len = _dbus_string_get_length (str);
660
661 retval = _dbus_string_insert_4_aligned (str, insert_at,
662 (const unsigned char *)&value);
663
664 if (pos_after)
665 {
666 *pos_after = insert_at + (_dbus_string_get_length (str) - orig_len);
667 _dbus_assert (*pos_after <= _dbus_string_get_length (str));
668 }
669
670 return retval;
671}
672
673static dbus_bool_t
674marshal_8_octets (DBusString *str,
675 int insert_at,
676 dbus_uint64_t value,
677 int byte_order,
678 int *pos_after)
679{
680 dbus_bool_t retval;
681 int orig_len;
682
683 _DBUS_STATIC_ASSERT (sizeof (value) == 8);
684
685 swap_8_octets (&value, byte_order);
686
687 orig_len = _dbus_string_get_length (str);
688
689 retval = _dbus_string_insert_8_aligned (str, insert_at,
690 (const unsigned char *)&value);
691
692 if (pos_after)
693 *pos_after = insert_at + _dbus_string_get_length (str) - orig_len;
694
695 return retval;
696}
697
698enum
699 {
700 MARSHAL_AS_STRING,
701 MARSHAL_AS_SIGNATURE,
702 MARSHAL_AS_BYTE_ARRAY
703 };
704
705static dbus_bool_t
706marshal_len_followed_by_bytes (int marshal_as,
707 DBusString *str,
708 int insert_at,
709 const unsigned char *value,
710 int data_len, /* doesn't include nul if any */
711 int byte_order,
712 int *pos_after)
713{
714 int pos;
715 DBusString value_str;
716 int value_len;
717
718 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN || byte_order == DBUS_BIG_ENDIAN);
719 if (insert_at > _dbus_string_get_length (str))
720 _dbus_warn ("insert_at = %d string len = %d data_len = %d",
721 insert_at, _dbus_string_get_length (str), data_len);
722
723 if (marshal_as == MARSHAL_AS_BYTE_ARRAY)
724 value_len = data_len;
725 else
726 value_len = data_len + 1; /* value has a nul */
727
728 _dbus_string_init_const_len (&value_str, (const char *) value, value_len);
729
730 pos = insert_at;
731
732 if (marshal_as == MARSHAL_AS_SIGNATURE)
733 {
734 _dbus_assert (data_len <= DBUS_MAXIMUM_SIGNATURE_LENGTH);
735 _dbus_assert (data_len <= 255); /* same as max sig len right now */
736
737 if (!_dbus_string_insert_byte (str, pos, data_len))
738 goto oom;
739
740 pos += 1;
741 }
742 else
743 {
744 if (!marshal_4_octets (str, pos, data_len,
745 byte_order, &pos))
746 goto oom;
747 }
748
749 if (!_dbus_string_copy_len (&value_str, 0, value_len,
750 str, pos))
751 goto oom;
752
753#if 0
754 /* too expensive */
755 _dbus_assert (_dbus_string_equal_substring (&value_str, 0, value_len,
756 str, pos));
757 _dbus_verbose_bytes_of_string (str, pos, value_len);
758#endif
759
760 pos += value_len;
761
762 if (pos_after)
763 *pos_after = pos;
764
765 return TRUE;
766
767 oom:
768 /* Delete what we've inserted */
769 _dbus_string_delete (str, insert_at, pos - insert_at);
770
771 return FALSE;
772}
773
774static dbus_bool_t
775marshal_string (DBusString *str,
776 int insert_at,
777 const char *value,
778 int byte_order,
779 int *pos_after)
780{
781 return marshal_len_followed_by_bytes (MARSHAL_AS_STRING,
782 str, insert_at, (const unsigned char *) value,
783 strlen (value),
784 byte_order, pos_after);
785}
786
787static dbus_bool_t
788marshal_signature (DBusString *str,
789 int insert_at,
790 const char *value,
791 int *pos_after)
792{
793 return marshal_len_followed_by_bytes (MARSHAL_AS_SIGNATURE,
794 str, insert_at, (const unsigned char *) value,
795 strlen (value),
796 DBUS_COMPILER_BYTE_ORDER, /* irrelevant */
797 pos_after);
798}
799
816 dbus_bool_t
817_dbus_marshal_write_basic (DBusString *str,
818 int insert_at,
819 int type,
820 const void *value,
821 int byte_order,
822 int *pos_after)
823{
824 /* Static assertions near the top of this file assert that signed and
825 * unsigned 16- and 32-bit quantities have the same alignment, and that
826 * doubles have alignment at least as strict as unsigned int64, so we
827 * don't have to distinguish further: every (double *)
828 * has strong enough alignment to be treated as though it was a
829 * (dbus_uint64_t *). Going via a (void *) means the compiler should
830 * know that pointers can alias each other. */
831 const unsigned char *u8_p;
832 const dbus_uint16_t *u16_p;
833 const dbus_uint32_t *u32_p;
834 const dbus_uint64_t *u64_p;
835 const char * const *string_p;
836
837 _dbus_assert (dbus_type_is_basic (type));
838
839 switch (type)
840 {
841 case DBUS_TYPE_BYTE:
842 u8_p = value;
843 if (!_dbus_string_insert_byte (str, insert_at, *u8_p))
844 return FALSE;
845 if (pos_after)
846 *pos_after = insert_at + 1;
847 return TRUE;
848 break;
849 case DBUS_TYPE_INT16:
850 case DBUS_TYPE_UINT16:
851 u16_p = value;
852 return marshal_2_octets (str, insert_at, *u16_p,
853 byte_order, pos_after);
854 break;
855 case DBUS_TYPE_BOOLEAN:
856 u32_p = value;
857 return marshal_4_octets (str, insert_at, (*u32_p != FALSE),
858 byte_order, pos_after);
859 break;
860 case DBUS_TYPE_INT32:
861 case DBUS_TYPE_UINT32:
862 case DBUS_TYPE_UNIX_FD:
863 u32_p = value;
864 return marshal_4_octets (str, insert_at, *u32_p,
865 byte_order, pos_after);
866 break;
867 case DBUS_TYPE_INT64:
868 case DBUS_TYPE_UINT64:
869 case DBUS_TYPE_DOUBLE:
870 u64_p = value;
871 return marshal_8_octets (str, insert_at, *u64_p, byte_order, pos_after);
872 break;
873
874 case DBUS_TYPE_STRING:
875 case DBUS_TYPE_OBJECT_PATH:
876 string_p = value;
877 _dbus_assert (*string_p != NULL);
878 return marshal_string (str, insert_at, *string_p, byte_order, pos_after);
879 break;
880 case DBUS_TYPE_SIGNATURE:
881 string_p = value;
882 _dbus_assert (*string_p != NULL);
883 return marshal_signature (str, insert_at, *string_p, pos_after);
884 break;
885 default:
886 _dbus_assert_not_reached ("not a basic type");
887 return FALSE;
888 break;
889 }
890}
891
892static dbus_bool_t
893marshal_1_octets_array (DBusString *str,
894 int insert_at,
895 const unsigned char *value,
896 int n_elements,
897 int byte_order,
898 int *pos_after)
899{
900 int pos;
901 DBusString value_str;
902
903 _dbus_string_init_const_len (&value_str, (const char *) value, n_elements);
904
905 pos = insert_at;
906
907 if (!_dbus_string_copy_len (&value_str, 0, n_elements,
908 str, pos))
909 return FALSE;
910
911 pos += n_elements;
912
913 if (pos_after)
914 *pos_after = pos;
915
916 return TRUE;
917}
918
926void
927_dbus_swap_array (unsigned char *data,
928 int n_elements,
929 int alignment)
930{
931 void *d;
932 void *end;
933
934 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, alignment) == data);
935
936 /* we use const_data and cast it off so DBusString can be a const string
937 * for the unit tests. don't ask.
938 */
939 d = data;
940 end = data + (n_elements * alignment);
941
942 if (alignment == 8)
943 {
944 while (d != end)
945 {
946 *((dbus_uint64_t*)d) = DBUS_UINT64_SWAP_LE_BE (*((dbus_uint64_t*)d));
947 d = ((unsigned char *) d) + 8;
948 }
949 }
950 else if (alignment == 4)
951 {
952 while (d != end)
953 {
954 *((dbus_uint32_t*)d) = DBUS_UINT32_SWAP_LE_BE (*((dbus_uint32_t*)d));
955 d = ((unsigned char *) d) + 4;
956 }
957 }
958 else
959 {
960 _dbus_assert (alignment == 2);
961
962 while (d != end)
963 {
964 *((dbus_uint16_t*)d) = DBUS_UINT16_SWAP_LE_BE (*((dbus_uint16_t*)d));
965 d = ((unsigned char *) d) + 2;
966 }
967 }
968}
969
970static void
971swap_array (DBusString *str,
972 int array_start,
973 int n_elements,
974 int byte_order,
975 int alignment)
976{
977 _dbus_assert (_DBUS_ALIGN_VALUE (array_start, alignment) == (unsigned) array_start);
978
979 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
980 {
981 /* we use const_data and cast it off so DBusString can be a const string
982 * for the unit tests. don't ask.
983 */
984 _dbus_swap_array ((unsigned char*) (_dbus_string_get_const_data (str) + array_start),
985 n_elements, alignment);
986 }
987}
988
989static dbus_bool_t
990marshal_fixed_multi (DBusString *str,
991 int insert_at,
992 const void *value,
993 int n_elements,
994 int byte_order,
995 int alignment,
996 int *pos_after)
997{
998 int old_string_len;
999 int array_start;
1000 DBusString t;
1001 int len_in_bytes;
1002
1003 _dbus_assert (n_elements <= DBUS_MAXIMUM_ARRAY_LENGTH / alignment);
1004
1005 old_string_len = _dbus_string_get_length (str);
1006
1007 len_in_bytes = n_elements * alignment;
1008 array_start = insert_at;
1009
1010 /* Note that we do alignment padding unconditionally
1011 * even if the array is empty; this means that
1012 * padding + len is always equal to the number of bytes
1013 * in the array.
1014 */
1015
1016 if (!_dbus_string_insert_alignment (str, &array_start, alignment))
1017 goto error;
1018
1019 _dbus_string_init_const_len (&t,
1020 (const char *) value,
1021 len_in_bytes);
1022
1023 if (!_dbus_string_copy (&t, 0,
1024 str, array_start))
1025 goto error;
1026
1027 swap_array (str, array_start, n_elements, byte_order, alignment);
1028
1029 if (pos_after)
1030 *pos_after = array_start + len_in_bytes;
1031
1032 return TRUE;
1033
1034 error:
1035 _dbus_string_delete (str, insert_at,
1036 _dbus_string_get_length (str) - old_string_len);
1037
1038 return FALSE;
1039}
1040
1058 dbus_bool_t
1059_dbus_marshal_write_fixed_multi (DBusString *str,
1060 int insert_at,
1061 int element_type,
1062 const void *value,
1063 int n_elements,
1064 int byte_order,
1065 int *pos_after)
1066{
1067 /* Static assertions near the top of this file assert that signed and
1068 * unsigned 16- and 32-bit quantities have the same alignment, and that
1069 * doubles have alignment at least as strict as unsigned int64, so we
1070 * don't have to distinguish further: every (double *)
1071 * has strong enough alignment to be treated as though it was a
1072 * (dbus_uint64_t *). Going via a (void *) means the compiler should
1073 * know that pointers can alias each other. */
1074 const unsigned char * const *u8_pp;
1075 const dbus_uint16_t * const *u16_pp;
1076 const dbus_uint32_t * const *u32_pp;
1077 const dbus_uint64_t * const *u64_pp;
1078
1079 _dbus_assert (dbus_type_is_fixed (element_type));
1080 _dbus_assert (n_elements >= 0);
1081
1082#if 0
1083 _dbus_verbose ("writing %d elements of %s\n",
1084 n_elements, _dbus_type_to_string (element_type));
1085#endif
1086
1087 switch (element_type)
1088 {
1089 case DBUS_TYPE_BYTE:
1090 u8_pp = value;
1091 return marshal_1_octets_array (str, insert_at, *u8_pp, n_elements, byte_order, pos_after);
1092 break;
1093 case DBUS_TYPE_INT16:
1094 case DBUS_TYPE_UINT16:
1095 u16_pp = value;
1096 return marshal_fixed_multi (str, insert_at, *u16_pp, n_elements, byte_order, 2, pos_after);
1097 case DBUS_TYPE_BOOLEAN:
1098 case DBUS_TYPE_INT32:
1099 case DBUS_TYPE_UINT32:
1100 case DBUS_TYPE_UNIX_FD:
1101 u32_pp = value;
1102 return marshal_fixed_multi (str, insert_at, *u32_pp, n_elements, byte_order, 4, pos_after);
1103 break;
1104 case DBUS_TYPE_INT64:
1105 case DBUS_TYPE_UINT64:
1106 case DBUS_TYPE_DOUBLE:
1107 u64_pp = value;
1108 return marshal_fixed_multi (str, insert_at, *u64_pp, n_elements, byte_order, 8, pos_after);
1109 break;
1110
1111 default:
1112 _dbus_assert_not_reached ("non fixed type in array write");
1113 break;
1114 }
1115
1116 return FALSE;
1117}
1118
1119
1129void
1130_dbus_marshal_skip_basic (const DBusString *str,
1131 int type,
1132 int byte_order,
1133 int *pos)
1134{
1135 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
1136 byte_order == DBUS_BIG_ENDIAN);
1137
1138 switch (type)
1139 {
1140 case DBUS_TYPE_BYTE:
1141 (*pos)++;
1142 break;
1143 case DBUS_TYPE_INT16:
1144 case DBUS_TYPE_UINT16:
1145 /* Advance to the next suitably-aligned position >= *pos */
1146 *pos = _DBUS_ALIGN_VALUE (*pos, 2);
1147 *pos += 2;
1148 break;
1149 case DBUS_TYPE_BOOLEAN:
1150 case DBUS_TYPE_INT32:
1151 case DBUS_TYPE_UINT32:
1152 case DBUS_TYPE_UNIX_FD:
1153 *pos = _DBUS_ALIGN_VALUE (*pos, 4);
1154 *pos += 4;
1155 break;
1156 case DBUS_TYPE_INT64:
1157 case DBUS_TYPE_UINT64:
1158 case DBUS_TYPE_DOUBLE:
1159 *pos = _DBUS_ALIGN_VALUE (*pos, 8);
1160 *pos += 8;
1161 break;
1162 case DBUS_TYPE_STRING:
1163 case DBUS_TYPE_OBJECT_PATH:
1164 {
1165 int len;
1166
1167 /* Let len be the number of bytes of string data, and advance
1168 * *pos to just after the length */
1169 len = _dbus_marshal_read_uint32 (str, *pos, byte_order, pos);
1170
1171 *pos += len + 1; /* length plus nul */
1172 }
1173 break;
1174 case DBUS_TYPE_SIGNATURE:
1175 {
1176 int len;
1177
1178 len = _dbus_string_get_byte (str, *pos);
1179
1180 *pos += len + 2; /* length byte plus length plus nul */
1181 }
1182 break;
1183 default:
1184 _dbus_warn ("type %s not a basic type",
1185 _dbus_type_to_string (type));
1186 _dbus_assert_not_reached ("not a basic type");
1187 break;
1188 }
1189
1190 /* We had better still be in-bounds at this point (pointing either into
1191 * the content of the string, or 1 past the logical length of the string) */
1192 _dbus_assert (*pos <= _dbus_string_get_length (str));
1193}
1194
1204void
1205_dbus_marshal_skip_array (const DBusString *str,
1206 int element_type,
1207 int byte_order,
1208 int *pos)
1209{
1210 dbus_uint32_t array_len;
1211 int i;
1212 int alignment;
1213
1214 /* Advance to the next 4-byte-aligned position >= *pos */
1215 i = _DBUS_ALIGN_VALUE (*pos, 4);
1216
1217 /* Let array_len be the number of bytes of array data, and advance
1218 * i to just after the length */
1219 array_len = _dbus_marshal_read_uint32 (str, i, byte_order, &i);
1220
1221 /* If the element type is more strictly-aligned than the length,
1222 * advance i to the next suitably-aligned position
1223 * (in other words, skip the padding) */
1224 alignment = _dbus_type_get_alignment (element_type);
1225
1226 i = _DBUS_ALIGN_VALUE (i, alignment);
1227
1228 /* Skip the actual array data */
1229 *pos = i + array_len;
1230
1231 /* We had better still be in-bounds at this point (pointing either into
1232 * the content of the string, or 1 past the logical length of the string) */
1233 _dbus_assert (*pos <= _dbus_string_get_length (str));
1234}
1235
1243int
1244_dbus_type_get_alignment (int typecode)
1245{
1246 switch (typecode)
1247 {
1248 case DBUS_TYPE_BYTE:
1249 case DBUS_TYPE_VARIANT:
1250 case DBUS_TYPE_SIGNATURE:
1251 return 1;
1252 case DBUS_TYPE_INT16:
1253 case DBUS_TYPE_UINT16:
1254 return 2;
1255 case DBUS_TYPE_BOOLEAN:
1256 case DBUS_TYPE_INT32:
1257 case DBUS_TYPE_UINT32:
1258 case DBUS_TYPE_UNIX_FD:
1259 /* this stuff is 4 since it starts with a length */
1260 case DBUS_TYPE_STRING:
1261 case DBUS_TYPE_OBJECT_PATH:
1262 case DBUS_TYPE_ARRAY:
1263 return 4;
1264 case DBUS_TYPE_INT64:
1265 case DBUS_TYPE_UINT64:
1266 case DBUS_TYPE_DOUBLE:
1267 /* struct is 8 since it could contain an 8-aligned item
1268 * and it's simpler to just always align structs to 8;
1269 * we want the amount of padding in a struct of a given
1270 * type to be predictable, not location-dependent.
1271 * DICT_ENTRY is always the same as struct.
1272 */
1273 case DBUS_TYPE_STRUCT:
1274 case DBUS_TYPE_DICT_ENTRY:
1275 return 8;
1276
1277 default:
1278 _dbus_assert_not_reached ("unknown typecode in _dbus_type_get_alignment()");
1279 return 0;
1280 }
1281}
1282
1289const char *
1290_dbus_type_to_string (int typecode)
1291{
1292 switch (typecode)
1293 {
1294 case DBUS_TYPE_INVALID:
1295 return "invalid";
1296 case DBUS_TYPE_BOOLEAN:
1297 return "boolean";
1298 case DBUS_TYPE_BYTE:
1299 return "byte";
1300 case DBUS_TYPE_INT16:
1301 return "int16";
1302 case DBUS_TYPE_UINT16:
1303 return "uint16";
1304 case DBUS_TYPE_INT32:
1305 return "int32";
1306 case DBUS_TYPE_UINT32:
1307 return "uint32";
1308 case DBUS_TYPE_INT64:
1309 return "int64";
1310 case DBUS_TYPE_UINT64:
1311 return "uint64";
1312 case DBUS_TYPE_DOUBLE:
1313 return "double";
1314 case DBUS_TYPE_STRING:
1315 return "string";
1316 case DBUS_TYPE_OBJECT_PATH:
1317 return "object_path";
1318 case DBUS_TYPE_SIGNATURE:
1319 return "signature";
1320 case DBUS_TYPE_STRUCT:
1321 return "struct";
1322 case DBUS_TYPE_DICT_ENTRY:
1323 return "dict_entry";
1324 case DBUS_TYPE_ARRAY:
1325 return "array";
1326 case DBUS_TYPE_VARIANT:
1327 return "variant";
1328 case DBUS_STRUCT_BEGIN_CHAR:
1329 return "begin_struct";
1330 case DBUS_STRUCT_END_CHAR:
1331 return "end_struct";
1332 case DBUS_DICT_ENTRY_BEGIN_CHAR:
1333 return "begin_dict_entry";
1334 case DBUS_DICT_ENTRY_END_CHAR:
1335 return "end_dict_entry";
1336 case DBUS_TYPE_UNIX_FD:
1337 return "unix_fd";
1338 default:
1339 return "unknown";
1340 }
1341}
1342
1350void
1351_dbus_verbose_bytes (const unsigned char *data,
1352 int len,
1353 int offset)
1354{
1355 int i;
1356 const unsigned char *aligned;
1357
1358 _dbus_assert (len >= 0);
1359
1360 if (!_dbus_is_verbose())
1361 return;
1362
1363 /* Print blanks on first row if appropriate */
1364 aligned = _DBUS_ALIGN_ADDRESS (data, 4);
1365 if (aligned > data)
1366 aligned -= 4;
1367 _dbus_assert (aligned <= data);
1368
1369 if (aligned != data)
1370 {
1371 _dbus_verbose ("%4ld\t%p: ", - (long)(data - aligned), aligned);
1372 while (aligned != data)
1373 {
1374 _dbus_verbose (" ");
1375 ++aligned;
1376 }
1377 }
1378
1379 /* now print the bytes */
1380 i = 0;
1381 while (i < len)
1382 {
1383 if (_DBUS_ALIGN_ADDRESS (&data[i], 4) == &data[i])
1384 {
1385 _dbus_verbose ("%4d\t%p: ",
1386 offset + i, &data[i]);
1387 }
1388
1389 if (data[i] >= 32 &&
1390 data[i] <= 126)
1391 _dbus_verbose (" '%c' ", data[i]);
1392 else
1393 _dbus_verbose ("0x%s%x ",
1394 data[i] <= 0xf ? "0" : "", data[i]);
1395
1396 ++i;
1397
1398 if (_DBUS_ALIGN_ADDRESS (&data[i], 4) == &data[i])
1399 {
1400 if (i > 3)
1401 _dbus_verbose ("BE: %d LE: %d",
1402 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN, &data[i-4]),
1403 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN, &data[i-4]));
1404
1405 if (i > 7 &&
1406 _DBUS_ALIGN_ADDRESS (&data[i], 8) == &data[i])
1407 {
1408 _dbus_verbose (" u64: 0x%" DBUS_INT64_MODIFIER "x",
1409 *(dbus_uint64_t *) (void *) &data[i - 8]);
1410 _dbus_verbose (" dbl: %g", *(double *) (void *) &data[i - 8]);
1411 }
1412
1413 _dbus_verbose ("\n");
1414 }
1415 }
1416
1417 _dbus_verbose ("\n");
1418}
1419
1427void
1428_dbus_verbose_bytes_of_string (const DBusString *str,
1429 int start,
1430 int len)
1431{
1432 const char *d;
1433 int real_len;
1434
1435 real_len = _dbus_string_get_length (str);
1436
1437 _dbus_assert (start >= 0);
1438
1439 if (start > real_len)
1440 {
1441 _dbus_verbose (" [%d,%d) is not inside string of length %d\n",
1442 start, len, real_len);
1443 return;
1444 }
1445
1446 if ((start + len) > real_len)
1447 {
1448 _dbus_verbose (" [%d,%d) extends outside string of length %d\n",
1449 start, len, real_len);
1450 len = real_len - start;
1451 }
1452
1453 d = _dbus_string_get_const_data_len (str, start, len);
1454
1455 _dbus_verbose_bytes ((const unsigned char *) d, len, start);
1456}
1457
1458static int
1459map_type_char_to_type (int t)
1460{
1461 if (t == DBUS_STRUCT_BEGIN_CHAR)
1462 return DBUS_TYPE_STRUCT;
1463 else if (t == DBUS_DICT_ENTRY_BEGIN_CHAR)
1464 return DBUS_TYPE_DICT_ENTRY;
1465 else
1466 {
1467 _dbus_assert (t != DBUS_STRUCT_END_CHAR);
1468 _dbus_assert (t != DBUS_DICT_ENTRY_END_CHAR);
1469 return t;
1470 }
1471}
1472
1483int
1484_dbus_first_type_in_signature (const DBusString *str,
1485 int pos)
1486{
1487 return map_type_char_to_type (_dbus_string_get_byte (str, pos));
1488}
1489
1498int
1499_dbus_first_type_in_signature_c_str (const char *str,
1500 int pos)
1501{
1502 return map_type_char_to_type (str[pos]);
1503}
1504
1506
1507#ifdef DBUS_ENABLE_EMBEDDED_TESTS
1508#include "dbus-test.h"
1509#include <stdio.h>
1510
1529void
1530_dbus_marshal_read_fixed_multi (const DBusString *str,
1531 int pos,
1532 int element_type,
1533 const void **value,
1534 int n_elements,
1535 int byte_order,
1536 int *new_pos)
1537{
1538 int array_len;
1539 int alignment;
1540
1541 _dbus_assert (dbus_type_is_fixed (element_type));
1542 _dbus_assert (dbus_type_is_basic (element_type));
1543
1544#if 0
1545 _dbus_verbose ("reading %d elements of %s\n",
1546 n_elements, _dbus_type_to_string (element_type));
1547#endif
1548
1549 alignment = _dbus_type_get_alignment (element_type);
1550
1551 pos = _DBUS_ALIGN_VALUE (pos, alignment);
1552
1553 array_len = n_elements * alignment;
1554
1555 *value = _dbus_string_get_const_data_len (str, pos, array_len);
1556 if (new_pos)
1557 *new_pos = pos + array_len;
1558}
1559
1560static void
1561swap_test_array (void *array,
1562 int len_bytes,
1563 int byte_order,
1564 int alignment)
1565{
1566 DBusString t;
1567
1568 if (alignment == 1)
1569 return;
1570
1571 _dbus_string_init_const_len (&t, array, len_bytes);
1572 swap_array (&t, 0, len_bytes / alignment, byte_order, alignment);
1573}
1574
1575#define MARSHAL_BASIC(typename, byte_order, literal) \
1576 do { \
1577 v_##typename = literal; \
1578 if (!_dbus_marshal_write_basic (&str, pos, DBUS_TYPE_##typename, \
1579 &v_##typename, \
1580 byte_order, NULL)) \
1581 _dbus_test_fatal ("no memory"); \
1582 } while (0)
1583
1584#define DEMARSHAL_BASIC(typename, byte_order) \
1585 do { \
1586 _dbus_marshal_read_basic (&str, pos, DBUS_TYPE_##typename, &v_##typename, \
1587 byte_order, &pos); \
1588 } while (0)
1589
1590#define DEMARSHAL_BASIC_AND_CHECK(typename, byte_order, literal) \
1591 do { \
1592 DEMARSHAL_BASIC (typename, byte_order); \
1593 if (literal != v_##typename) \
1594 { \
1595 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1596 _dbus_string_get_length (&str) - dump_pos); \
1597 _dbus_test_fatal ("demarshaled wrong value"); \
1598 } \
1599 } while (0)
1600
1601#define MARSHAL_TEST(typename, byte_order, literal) \
1602 do { \
1603 MARSHAL_BASIC (typename, byte_order, literal); \
1604 dump_pos = pos; \
1605 DEMARSHAL_BASIC_AND_CHECK (typename, byte_order, literal); \
1606 } while (0)
1607
1608#define MARSHAL_TEST_STRCMP(typename, byte_order, literal) \
1609 do { \
1610 MARSHAL_BASIC (typename, byte_order, literal); \
1611 dump_pos = pos; \
1612 DEMARSHAL_BASIC (typename, byte_order); \
1613 if (strcmp (literal, v_##typename) != 0) \
1614 { \
1615 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1616 _dbus_string_get_length (&str) - dump_pos); \
1617 _dbus_warn ("literal '%s'\nvalue '%s'", literal, v_##typename); \
1618 _dbus_test_fatal ("demarshaled wrong value"); \
1619 } \
1620 } while (0)
1621
1622#define MARSHAL_FIXED_ARRAY(typename, byte_order, literal) \
1623 do { \
1624 int next; \
1625 v_UINT32 = sizeof(literal); \
1626 if (!_dbus_marshal_write_basic (&str, pos, DBUS_TYPE_UINT32, &v_UINT32, \
1627 byte_order, &next)) \
1628 _dbus_test_fatal ("no memory"); \
1629 v_ARRAY_##typename = literal; \
1630 if (!_dbus_marshal_write_fixed_multi (&str, next, DBUS_TYPE_##typename, \
1631 &v_ARRAY_##typename, _DBUS_N_ELEMENTS(literal), \
1632 byte_order, NULL)) \
1633 _dbus_test_fatal ("no memory"); \
1634 } while (0)
1635
1636#define DEMARSHAL_FIXED_ARRAY(typename, byte_order) \
1637 do { \
1638 int next; \
1639 alignment = _dbus_type_get_alignment (DBUS_TYPE_##typename); \
1640 v_UINT32 = _dbus_marshal_read_uint32 (&str, dump_pos, byte_order, &next); \
1641 _dbus_marshal_read_fixed_multi (&str, next, DBUS_TYPE_##typename, \
1642 (const void **) &v_ARRAY_##typename, \
1643 v_UINT32/alignment, \
1644 byte_order, NULL); \
1645 swap_test_array (v_ARRAY_##typename, v_UINT32, \
1646 byte_order, alignment); \
1647 } while (0)
1648
1649#define DEMARSHAL_FIXED_ARRAY_AND_CHECK(typename, byte_order, literal) \
1650 do { \
1651 DEMARSHAL_FIXED_ARRAY (typename, byte_order); \
1652 if (memcmp (literal, v_ARRAY_##typename, sizeof (literal)) != 0) \
1653 { \
1654 _dbus_verbose ("MARSHALED DATA\n"); \
1655 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1656 _dbus_string_get_length (&str) - dump_pos); \
1657 _dbus_verbose ("LITERAL DATA\n"); \
1658 _dbus_verbose_bytes ((const unsigned char *) literal, sizeof (literal), 0); \
1659 _dbus_verbose ("READ DATA\n"); \
1660 _dbus_verbose_bytes ((const unsigned char *) v_ARRAY_##typename, sizeof (literal), 0); \
1661 _dbus_test_fatal ("demarshaled wrong fixed array value"); \
1662 } \
1663 } while (0)
1664
1665#define MARSHAL_TEST_FIXED_ARRAY(typename, byte_order, literal) \
1666 do { \
1667 MARSHAL_FIXED_ARRAY (typename, byte_order, literal); \
1668 dump_pos = pos; \
1669 DEMARSHAL_FIXED_ARRAY_AND_CHECK (typename, byte_order, literal); \
1670 } while (0)
1671
1672 dbus_bool_t
1673_dbus_marshal_test (const char *test_data_dir _DBUS_GNUC_UNUSED)
1674{
1675 int alignment;
1676 DBusString str;
1677 int pos, dump_pos;
1678 unsigned char array1[5] = { 3, 4, 0, 1, 9 };
1679 dbus_int16_t array2[3] = { 124, 457, 780 };
1680 dbus_uint16_t array2u[3] = { 124, 457, 780 };
1681 dbus_int32_t array4[3] = { 123, 456, 789 };
1682 dbus_uint32_t array4u[3] = { 123, 456, 789 };
1683 dbus_int64_t array8[3] = { DBUS_INT64_CONSTANT (0x123ffffffff),
1684 DBUS_INT64_CONSTANT (0x456ffffffff),
1685 DBUS_INT64_CONSTANT (0x789ffffffff) };
1686 dbus_int64_t *v_ARRAY_INT64;
1687 unsigned char *v_ARRAY_BYTE;
1688 dbus_int16_t *v_ARRAY_INT16;
1689 dbus_uint16_t *v_ARRAY_UINT16;
1690 dbus_int32_t *v_ARRAY_INT32;
1691 dbus_uint32_t *v_ARRAY_UINT32;
1692 DBusString t;
1693 double v_DOUBLE;
1694 double t_DOUBLE;
1695 dbus_int16_t v_INT16;
1696 dbus_uint16_t v_UINT16;
1697 dbus_int32_t v_INT32;
1698 dbus_uint32_t v_UINT32;
1699 dbus_int64_t v_INT64;
1700 dbus_uint64_t v_UINT64;
1701 unsigned char v_BYTE;
1702 dbus_bool_t v_BOOLEAN;
1703 const char *v_STRING;
1704 const char *v_SIGNATURE;
1705 const char *v_OBJECT_PATH;
1706 int byte_order;
1707
1708 if (!_dbus_string_init (&str))
1709 _dbus_test_fatal ("failed to init string");
1710
1711 pos = 0;
1712
1713 /* Marshal doubles */
1714 MARSHAL_BASIC (DOUBLE, DBUS_BIG_ENDIAN, 3.14);
1715 DEMARSHAL_BASIC (DOUBLE, DBUS_BIG_ENDIAN);
1716 t_DOUBLE = 3.14;
1717 if (!_DBUS_DOUBLES_BITWISE_EQUAL (t_DOUBLE, v_DOUBLE))
1718 _dbus_test_fatal ("got wrong double value");
1719
1720 MARSHAL_BASIC (DOUBLE, DBUS_LITTLE_ENDIAN, 3.14);
1721 DEMARSHAL_BASIC (DOUBLE, DBUS_LITTLE_ENDIAN);
1722 t_DOUBLE = 3.14;
1723 if (!_DBUS_DOUBLES_BITWISE_EQUAL (t_DOUBLE, v_DOUBLE))
1724 _dbus_test_fatal ("got wrong double value");
1725
1726 /* Marshal signed 16 integers */
1727 MARSHAL_TEST (INT16, DBUS_BIG_ENDIAN, -12345);
1728 MARSHAL_TEST (INT16, DBUS_LITTLE_ENDIAN, -12345);
1729
1730 /* Marshal unsigned 16 integers */
1731 MARSHAL_TEST (UINT16, DBUS_BIG_ENDIAN, 0x1234);
1732 MARSHAL_TEST (UINT16, DBUS_LITTLE_ENDIAN, 0x1234);
1733
1734 /* Marshal signed integers */
1735 MARSHAL_TEST (INT32, DBUS_BIG_ENDIAN, -12345678);
1736 MARSHAL_TEST (INT32, DBUS_LITTLE_ENDIAN, -12345678);
1737
1738 /* Marshal unsigned integers */
1739 MARSHAL_TEST (UINT32, DBUS_BIG_ENDIAN, 0x12345678);
1740 MARSHAL_TEST (UINT32, DBUS_LITTLE_ENDIAN, 0x12345678);
1741
1742 /* Marshal signed integers */
1743 MARSHAL_TEST (INT64, DBUS_BIG_ENDIAN, DBUS_INT64_CONSTANT (-0x123456789abc7));
1744 MARSHAL_TEST (INT64, DBUS_LITTLE_ENDIAN, DBUS_INT64_CONSTANT (-0x123456789abc7));
1745
1746 /* Marshal unsigned integers */
1747 MARSHAL_TEST (UINT64, DBUS_BIG_ENDIAN, DBUS_UINT64_CONSTANT (0x123456789abc7));
1748 MARSHAL_TEST (UINT64, DBUS_LITTLE_ENDIAN, DBUS_UINT64_CONSTANT (0x123456789abc7));
1749
1750 /* Marshal byte */
1751 MARSHAL_TEST (BYTE, DBUS_BIG_ENDIAN, 5);
1752 MARSHAL_TEST (BYTE, DBUS_LITTLE_ENDIAN, 5);
1753
1754 /* Marshal all possible bools! */
1755 MARSHAL_TEST (BOOLEAN, DBUS_BIG_ENDIAN, FALSE);
1756 MARSHAL_TEST (BOOLEAN, DBUS_LITTLE_ENDIAN, FALSE);
1757 MARSHAL_TEST (BOOLEAN, DBUS_BIG_ENDIAN, TRUE);
1758 MARSHAL_TEST (BOOLEAN, DBUS_LITTLE_ENDIAN, TRUE);
1759
1760 /* Marshal strings */
1761 MARSHAL_TEST_STRCMP (STRING, DBUS_BIG_ENDIAN, "");
1762 MARSHAL_TEST_STRCMP (STRING, DBUS_LITTLE_ENDIAN, "");
1763 MARSHAL_TEST_STRCMP (STRING, DBUS_BIG_ENDIAN, "This is the dbus test string");
1764 MARSHAL_TEST_STRCMP (STRING, DBUS_LITTLE_ENDIAN, "This is the dbus test string");
1765
1766 /* object paths */
1767 MARSHAL_TEST_STRCMP (OBJECT_PATH, DBUS_BIG_ENDIAN, "/a/b/c");
1768 MARSHAL_TEST_STRCMP (OBJECT_PATH, DBUS_LITTLE_ENDIAN, "/a/b/c");
1769
1770 /* signatures */
1771 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_BIG_ENDIAN, "");
1772 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_LITTLE_ENDIAN, "");
1773 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_BIG_ENDIAN, "a(ii)");
1774 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_LITTLE_ENDIAN, "a(ii)");
1775
1776 /* Arrays */
1777 MARSHAL_TEST_FIXED_ARRAY (INT16, DBUS_BIG_ENDIAN, array2);
1778 MARSHAL_TEST_FIXED_ARRAY (INT16, DBUS_LITTLE_ENDIAN, array2);
1779 MARSHAL_TEST_FIXED_ARRAY (UINT16, DBUS_BIG_ENDIAN, array2u);
1780 MARSHAL_TEST_FIXED_ARRAY (UINT16, DBUS_LITTLE_ENDIAN, array2u);
1781
1782 MARSHAL_TEST_FIXED_ARRAY (INT32, DBUS_BIG_ENDIAN, array4);
1783 MARSHAL_TEST_FIXED_ARRAY (INT32, DBUS_LITTLE_ENDIAN, array4);
1784 MARSHAL_TEST_FIXED_ARRAY (UINT32, DBUS_BIG_ENDIAN, array4u);
1785 MARSHAL_TEST_FIXED_ARRAY (UINT32, DBUS_LITTLE_ENDIAN, array4u);
1786
1787 MARSHAL_TEST_FIXED_ARRAY (BYTE, DBUS_BIG_ENDIAN, array1);
1788 MARSHAL_TEST_FIXED_ARRAY (BYTE, DBUS_LITTLE_ENDIAN, array1);
1789
1790 MARSHAL_TEST_FIXED_ARRAY (INT64, DBUS_BIG_ENDIAN, array8);
1791 MARSHAL_TEST_FIXED_ARRAY (INT64, DBUS_LITTLE_ENDIAN, array8);
1792
1793#if 0
1794
1795 /*
1796 * FIXME restore the set/pack tests
1797 */
1798
1799 /* set/pack 64-bit integers */
1800 _dbus_string_set_length (&str, 8);
1801
1802 /* signed little */
1803 _dbus_marshal_set_int64 (&str, DBUS_LITTLE_ENDIAN,
1804 0, DBUS_INT64_CONSTANT (-0x123456789abc7));
1805
1806 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1807 _dbus_unpack_int64 (DBUS_LITTLE_ENDIAN,
1808 _dbus_string_get_const_data (&str)));
1809
1810 /* signed big */
1811 _dbus_marshal_set_int64 (&str, DBUS_BIG_ENDIAN,
1812 0, DBUS_INT64_CONSTANT (-0x123456789abc7));
1813
1814 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1815 _dbus_unpack_int64 (DBUS_BIG_ENDIAN,
1816 _dbus_string_get_const_data (&str)));
1817
1818 /* signed little pack */
1819 _dbus_pack_int64 (DBUS_INT64_CONSTANT (-0x123456789abc7),
1820 DBUS_LITTLE_ENDIAN,
1821 _dbus_string_get_data (&str));
1822
1823 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1824 _dbus_unpack_int64 (DBUS_LITTLE_ENDIAN,
1825 _dbus_string_get_const_data (&str)));
1826
1827 /* signed big pack */
1828 _dbus_pack_int64 (DBUS_INT64_CONSTANT (-0x123456789abc7),
1829 DBUS_BIG_ENDIAN,
1830 _dbus_string_get_data (&str));
1831
1832 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1833 _dbus_unpack_int64 (DBUS_BIG_ENDIAN,
1834 _dbus_string_get_const_data (&str)));
1835
1836 /* unsigned little */
1837 _dbus_marshal_set_uint64 (&str, DBUS_LITTLE_ENDIAN,
1838 0, DBUS_UINT64_CONSTANT (0x123456789abc7));
1839
1840 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1841 _dbus_unpack_uint64 (DBUS_LITTLE_ENDIAN,
1842 _dbus_string_get_const_data (&str)));
1843
1844 /* unsigned big */
1845 _dbus_marshal_set_uint64 (&str, DBUS_BIG_ENDIAN,
1846 0, DBUS_UINT64_CONSTANT (0x123456789abc7));
1847
1848 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1849 _dbus_unpack_uint64 (DBUS_BIG_ENDIAN,
1850 _dbus_string_get_const_data (&str)));
1851
1852 /* unsigned little pack */
1853 _dbus_pack_uint64 (DBUS_UINT64_CONSTANT (0x123456789abc7),
1854 DBUS_LITTLE_ENDIAN,
1855 _dbus_string_get_data (&str));
1856
1857 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1858 _dbus_unpack_uint64 (DBUS_LITTLE_ENDIAN,
1859 _dbus_string_get_const_data (&str)));
1860
1861 /* unsigned big pack */
1862 _dbus_pack_uint64 (DBUS_UINT64_CONSTANT (0x123456789abc7),
1863 DBUS_BIG_ENDIAN,
1864 _dbus_string_get_data (&str));
1865
1866 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1867 _dbus_unpack_uint64 (DBUS_BIG_ENDIAN,
1868 _dbus_string_get_const_data (&str)));
1869
1870 /* set/pack 32-bit integers */
1871 _dbus_string_set_length (&str, 4);
1872
1873 /* signed little */
1874 _dbus_marshal_set_int32 (&str, DBUS_LITTLE_ENDIAN,
1875 0, -0x123456);
1876
1877 _dbus_assert (-0x123456 ==
1878 _dbus_unpack_int32 (DBUS_LITTLE_ENDIAN,
1879 _dbus_string_get_const_data (&str)));
1880
1881 /* signed big */
1882 _dbus_marshal_set_int32 (&str, DBUS_BIG_ENDIAN,
1883 0, -0x123456);
1884
1885 _dbus_assert (-0x123456 ==
1886 _dbus_unpack_int32 (DBUS_BIG_ENDIAN,
1887 _dbus_string_get_const_data (&str)));
1888
1889 /* signed little pack */
1890 _dbus_pack_int32 (-0x123456,
1891 DBUS_LITTLE_ENDIAN,
1892 _dbus_string_get_data (&str));
1893
1894 _dbus_assert (-0x123456 ==
1895 _dbus_unpack_int32 (DBUS_LITTLE_ENDIAN,
1896 _dbus_string_get_const_data (&str)));
1897
1898 /* signed big pack */
1899 _dbus_pack_int32 (-0x123456,
1900 DBUS_BIG_ENDIAN,
1901 _dbus_string_get_data (&str));
1902
1903 _dbus_assert (-0x123456 ==
1904 _dbus_unpack_int32 (DBUS_BIG_ENDIAN,
1905 _dbus_string_get_const_data (&str)));
1906
1907 /* unsigned little */
1908 _dbus_marshal_set_uint32 (&str,
1909 0, 0x123456,
1910 DBUS_LITTLE_ENDIAN);
1911
1912 _dbus_assert (0x123456 ==
1913 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN,
1914 _dbus_string_get_const_data (&str)));
1915
1916 /* unsigned big */
1917 _dbus_marshal_set_uint32 (&str,
1918 0, 0x123456,
1919 DBUS_BIG_ENDIAN);
1920
1921 _dbus_assert (0x123456 ==
1922 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN,
1923 _dbus_string_get_const_data (&str)));
1924
1925 /* unsigned little pack */
1926 _dbus_pack_uint32 (0x123456,
1927 DBUS_LITTLE_ENDIAN,
1928 _dbus_string_get_data (&str));
1929
1930 _dbus_assert (0x123456 ==
1931 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN,
1932 _dbus_string_get_const_data (&str)));
1933
1934 /* unsigned big pack */
1935 _dbus_pack_uint32 (0x123456,
1936 DBUS_BIG_ENDIAN,
1937 _dbus_string_get_data (&str));
1938
1939 _dbus_assert (0x123456 ==
1940 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN,
1941 _dbus_string_get_const_data (&str)));
1942
1943#endif /* set/pack tests for integers */
1944
1945 /* Strings in-place set */
1946 byte_order = DBUS_LITTLE_ENDIAN;
1947 while (TRUE)
1948 {
1949 /* Init a string */
1950 _dbus_string_set_length (&str, 0);
1951
1952 /* reset pos for the macros */
1953 pos = 0;
1954
1955 MARSHAL_TEST_STRCMP (STRING, byte_order, "Hello world");
1956
1957 /* Set it to something longer */
1958 _dbus_string_init_const (&t, "Hello world foo");
1959
1960 v_STRING = _dbus_string_get_const_data (&t);
1961 _dbus_marshal_set_basic (&str, 0, DBUS_TYPE_STRING,
1962 &v_STRING, byte_order, NULL, NULL);
1963
1964 _dbus_marshal_read_basic (&str, 0, DBUS_TYPE_STRING,
1965 &v_STRING, byte_order,
1966 NULL);
1967 _dbus_assert (strcmp (v_STRING, "Hello world foo") == 0);
1968
1969 /* Set it to something shorter */
1970 _dbus_string_init_const (&t, "Hello");
1971
1972 v_STRING = _dbus_string_get_const_data (&t);
1973 _dbus_marshal_set_basic (&str, 0, DBUS_TYPE_STRING,
1974 &v_STRING, byte_order, NULL, NULL);
1975 _dbus_marshal_read_basic (&str, 0, DBUS_TYPE_STRING,
1976 &v_STRING, byte_order,
1977 NULL);
1978 _dbus_assert (strcmp (v_STRING, "Hello") == 0);
1979
1980 /* Do the other byte order */
1981 if (byte_order == DBUS_LITTLE_ENDIAN)
1982 byte_order = DBUS_BIG_ENDIAN;
1983 else
1984 break;
1985 }
1986
1987 /* Clean up */
1988 _dbus_string_free (&str);
1989
1990 return TRUE;
1991}
1992
1993#endif /* DBUS_ENABLE_EMBEDDED_TESTS */
_dbus_assert_not_reached
#define _dbus_assert_not_reached(explanation)
Aborts with an error message if called.
Definition dbus-internals.h:164
_dbus_assert
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
Definition dbus-internals.h:153
_dbus_warn_check_failed
void _dbus_warn_check_failed(const char *format,...)
Prints a "critical" warning to stderr when an assertion fails; differs from _dbus_warn primarily in t...
Definition dbus-internals.c:310
_dbus_warn
void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
Definition dbus-internals.c:278
NULL
#define NULL
A null pointer, defined appropriately for C or C++.
Definition dbus-macros.h:51
TRUE
#define TRUE
Expands to "1".
Definition dbus-macros.h:41
FALSE
#define FALSE
Expands to "0".
Definition dbus-macros.h:44
_dbus_unpack_uint16
dbus_uint16_t _dbus_unpack_uint16(int byte_order, const unsigned char *data)
Unpacks a 16 bit unsigned integer from a data pointer.
Definition dbus-marshal-basic.c:168
_dbus_type_get_alignment
int _dbus_type_get_alignment(int typecode)
Gets the alignment requirement for the given type; will be 1, 2, 4, or 8.
Definition dbus-marshal-basic.c:1244
_dbus_verbose_bytes_of_string
void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log.
Definition dbus-marshal-basic.c:1428
_dbus_pack_uint32
void _dbus_pack_uint32(dbus_uint32_t value, int byte_order, unsigned char *data)
Packs a 32 bit unsigned integer into a data pointer.
Definition dbus-marshal-basic.c:142
_dbus_marshal_set_uint32
void _dbus_marshal_set_uint32(DBusString *str, int pos, dbus_uint32_t value, int byte_order)
Sets the 4 bytes at the given offset to a marshaled unsigned integer, replacing anything found there ...
Definition dbus-marshal-basic.c:260
_dbus_unpack_uint32
dbus_uint32_t _dbus_unpack_uint32(int byte_order, const unsigned char *data)
Unpacks a 32 bit unsigned integer from a data pointer.
Definition dbus-marshal-basic.c:189
_dbus_marshal_write_basic
dbus_bool_t _dbus_marshal_write_basic(DBusString *str, int insert_at, int type, const void *value, int byte_order, int *pos_after)
Marshals a basic-typed value.
Definition dbus-marshal-basic.c:817
_dbus_first_type_in_signature
int _dbus_first_type_in_signature(const DBusString *str, int pos)
Get the first type in the signature.
Definition dbus-marshal-basic.c:1484
_dbus_first_type_in_signature_c_str
int _dbus_first_type_in_signature_c_str(const char *str, int pos)
Similar to _dbus_first_type_in_signature, but operates on a C string buffer.
Definition dbus-marshal-basic.c:1499
_dbus_marshal_read_uint32
dbus_uint32_t _dbus_marshal_read_uint32(const DBusString *str, int pos, int byte_order, int *new_pos)
Convenience function to demarshal a 32 bit unsigned integer.
Definition dbus-marshal-basic.c:476
_dbus_verbose_bytes
void _dbus_verbose_bytes(const unsigned char *data, int len, int offset)
If in verbose mode, print a block of binary data.
Definition dbus-marshal-basic.c:1351
_dbus_marshal_set_basic
dbus_bool_t _dbus_marshal_set_basic(DBusString *str, int pos, int type, const void *value, int byte_order, int *old_end_pos, int *new_end_pos)
Sets an existing basic type value to a new value.
Definition dbus-marshal-basic.c:377
_dbus_marshal_skip_array
void _dbus_marshal_skip_array(const DBusString *str, int element_type, int byte_order, int *pos)
Skips an array, returning the next position.
Definition dbus-marshal-basic.c:1205
_dbus_marshal_write_fixed_multi
dbus_bool_t _dbus_marshal_write_fixed_multi(DBusString *str, int insert_at, int element_type, const void *value, int n_elements, int byte_order, int *pos_after)
Marshals a block of values of fixed-length type all at once, as an optimization.
Definition dbus-marshal-basic.c:1059
_dbus_type_to_string
const char * _dbus_type_to_string(int typecode)
Returns a string describing the given type.
Definition dbus-marshal-basic.c:1290
_dbus_marshal_read_basic
void _dbus_marshal_read_basic(const DBusString *str, int pos, int type, void *value, int byte_order, int *new_pos)
Demarshals a basic-typed value.
Definition dbus-marshal-basic.c:514
_dbus_swap_array
void _dbus_swap_array(unsigned char *data, int n_elements, int alignment)
Swaps the elements of an array to the opposite byte order.
Definition dbus-marshal-basic.c:927
_dbus_marshal_skip_basic
void _dbus_marshal_skip_basic(const DBusString *str, int type, int byte_order, int *pos)
Skips over a basic-typed value, reporting the following position.
Definition dbus-marshal-basic.c:1130
DBUS_TYPE_SIGNATURE
#define DBUS_TYPE_SIGNATURE
Type code marking a D-Bus type signature.
Definition dbus-protocol.h:112
DBUS_MAXIMUM_SIGNATURE_LENGTH
#define DBUS_MAXIMUM_SIGNATURE_LENGTH
This one is 255 so it fits in a byte.
Definition dbus-protocol.h:183
DBUS_DICT_ENTRY_END_CHAR
#define DBUS_DICT_ENTRY_END_CHAR
Code marking the end of a dict entry type in a type signature.
Definition dbus-protocol.h:170
DBUS_TYPE_OBJECT_PATH
#define DBUS_TYPE_OBJECT_PATH
Type code marking a D-Bus object path.
Definition dbus-protocol.h:108
DBUS_TYPE_BYTE
#define DBUS_TYPE_BYTE
Type code marking an 8-bit unsigned integer.
Definition dbus-protocol.h:68
DBUS_TYPE_INT16
#define DBUS_TYPE_INT16
Type code marking a 16-bit signed integer.
Definition dbus-protocol.h:76
DBUS_TYPE_VARIANT
#define DBUS_TYPE_VARIANT
Type code marking a D-Bus variant type.
Definition dbus-protocol.h:126
DBUS_MAXIMUM_ARRAY_LENGTH
#define DBUS_MAXIMUM_ARRAY_LENGTH
Max length of a marshaled array in bytes (64M, 2^26) We use signed int for lengths so must be INT_MAX...
Definition dbus-protocol.h:205
DBUS_TYPE_INT32
#define DBUS_TYPE_INT32
Type code marking a 32-bit signed integer.
Definition dbus-protocol.h:84
DBUS_TYPE_UNIX_FD
#define DBUS_TYPE_UNIX_FD
Type code marking a unix file descriptor.
Definition dbus-protocol.h:116
DBUS_TYPE_BOOLEAN
#define DBUS_TYPE_BOOLEAN
Type code marking a boolean.
Definition dbus-protocol.h:72
DBUS_STRUCT_BEGIN_CHAR
#define DBUS_STRUCT_BEGIN_CHAR
Code marking the start of a struct type in a type signature.
Definition dbus-protocol.h:158
DBUS_TYPE_STRING
#define DBUS_TYPE_STRING
Type code marking a UTF-8 encoded, nul-terminated Unicode string.
Definition dbus-protocol.h:104
DBUS_TYPE_ARRAY
#define DBUS_TYPE_ARRAY
Type code marking a D-Bus array type.
Definition dbus-protocol.h:122
DBUS_TYPE_INVALID
#define DBUS_TYPE_INVALID
Type code that is never equal to a legitimate type code.
Definition dbus-protocol.h:62
DBUS_LITTLE_ENDIAN
#define DBUS_LITTLE_ENDIAN
Code marking LSB-first byte order in the wire protocol.
Definition dbus-protocol.h:55
DBUS_TYPE_INT64
#define DBUS_TYPE_INT64
Type code marking a 64-bit signed integer.
Definition dbus-protocol.h:92
DBUS_TYPE_DOUBLE
#define DBUS_TYPE_DOUBLE
Type code marking an 8-byte double in IEEE 754 format.
Definition dbus-protocol.h:100
DBUS_TYPE_UINT64
#define DBUS_TYPE_UINT64
Type code marking a 64-bit unsigned integer.
Definition dbus-protocol.h:96
DBUS_TYPE_DICT_ENTRY
#define DBUS_TYPE_DICT_ENTRY
Type code used to represent a dict entry; however, this type code does not appear in type signatures,...
Definition dbus-protocol.h:145
DBUS_DICT_ENTRY_BEGIN_CHAR
#define DBUS_DICT_ENTRY_BEGIN_CHAR
Code marking the start of a dict entry type in a type signature.
Definition dbus-protocol.h:166
DBUS_TYPE_UINT16
#define DBUS_TYPE_UINT16
Type code marking a 16-bit unsigned integer.
Definition dbus-protocol.h:80
DBUS_TYPE_STRUCT
#define DBUS_TYPE_STRUCT
STRUCT and DICT_ENTRY are sort of special since their codes can't appear in a type string,...
Definition dbus-protocol.h:138
DBUS_STRUCT_END_CHAR
#define DBUS_STRUCT_END_CHAR
Code marking the end of a struct type in a type signature.
Definition dbus-protocol.h:162
DBUS_BIG_ENDIAN
#define DBUS_BIG_ENDIAN
Code marking MSB-first byte order in the wire protocol.
Definition dbus-protocol.h:56
DBUS_TYPE_UINT32
#define DBUS_TYPE_UINT32
Type code marking a 32-bit unsigned integer.
Definition dbus-protocol.h:88
dbus_type_is_basic
dbus_bool_t dbus_type_is_basic(int typecode)
A "basic type" is a somewhat arbitrary concept, but the intent is to include those types that are ful...
Definition dbus-signature.c:324
dbus_type_is_fixed
dbus_bool_t dbus_type_is_fixed(int typecode)
Tells you whether values of this type can change length if you set them to some other value.
Definition dbus-signature.c:355
_dbus_string_set_length
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string.
Definition dbus-string.c:847
_dbus_string_insert_8_aligned
dbus_bool_t _dbus_string_insert_8_aligned(DBusString *str, int insert_at, const unsigned char octets[8])
Inserts 8 bytes aligned on an 8 byte boundary with any alignment padding initialized to 0.
Definition dbus-string.c:1053
_dbus_string_equal_substring
dbus_bool_t _dbus_string_equal_substring(const DBusString *a, int a_start, int a_len, const DBusString *b, int b_start)
Tests two sub-parts of two DBusString for equality.
Definition dbus-string.c:2166
_dbus_string_insert_alignment
dbus_bool_t _dbus_string_insert_alignment(DBusString *str, int *insert_at, int alignment)
Inserts padding at *insert_at such to align it to the given boundary.
Definition dbus-string.c:1081
_dbus_string_init
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
Definition dbus-string.c:182
_dbus_string_init_const
void _dbus_string_init_const(DBusString *str, const char *value)
Initializes a constant string.
Definition dbus-string.c:197
_dbus_string_copy
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that's copied to the d...
Definition dbus-string.c:1345
_dbus_string_get_data_len
char * _dbus_string_get_data_len(DBusString *str, int start, int len)
Gets a sub-portion of the raw character buffer from the string.
Definition dbus-string.c:535
_dbus_string_init_const_len
void _dbus_string_init_const_len(DBusString *str, const char *value, int len)
Initializes a constant string with a length.
Definition dbus-string.c:217
_dbus_string_free
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init(), and fills it with the same contents as _DBUS_STRING_IN...
Definition dbus-string.c:278
_dbus_string_delete
void _dbus_string_delete(DBusString *str, int start, int len)
Deletes a segment of a DBusString with length len starting at start.
Definition dbus-string.c:1255
_dbus_string_insert_byte
dbus_bool_t _dbus_string_insert_byte(DBusString *str, int i, unsigned char byte)
Inserts a single byte at the given position.
Definition dbus-string.c:659
_dbus_string_insert_4_aligned
dbus_bool_t _dbus_string_insert_4_aligned(DBusString *str, int insert_at, const unsigned char octets[4])
Inserts 4 bytes aligned on a 4 byte boundary with any alignment padding initialized to 0.
Definition dbus-string.c:1029
_dbus_string_insert_2_aligned
dbus_bool_t _dbus_string_insert_2_aligned(DBusString *str, int insert_at, const unsigned char octets[2])
Inserts 2 bytes aligned on a 2 byte boundary with any alignment padding initialized to 0.
Definition dbus-string.c:1005
_dbus_string_copy_len
dbus_bool_t _dbus_string_copy_len(const DBusString *source, int start, int len, DBusString *dest, int insert_at)
Like _dbus_string_copy(), but can copy a segment from the middle of the source string.
Definition dbus-string.c:1437
_dbus_string_replace_len
dbus_bool_t _dbus_string_replace_len(const DBusString *source, int start, int len, DBusString *dest, int replace_at, int replace_len)
Replaces a segment of dest string with a segment of source string.
Definition dbus-string.c:1466
_DBUS_DOUBLES_BITWISE_EQUAL
#define _DBUS_DOUBLES_BITWISE_EQUAL(a, b)
On x86 there is an 80-bit FPU, and if you do "a == b" it may have a or b in an 80-bit register,...
Definition dbus-sysdeps.h:654
dbus_uint16_t
unsigned short dbus_uint16_t
A 16-bit unsigned integer on all platforms.
Definition dbus-arch-deps.h:48
DBUS_UINT64_CONSTANT
#define DBUS_UINT64_CONSTANT(val)
Declare a 64-bit unsigned integer constant.
Definition dbus-arch-deps.h:42
dbus_uint32_t
unsigned int dbus_uint32_t
A 32-bit unsigned integer on all platforms.
Definition dbus-arch-deps.h:45
dbus_int32_t
int dbus_int32_t
A 32-bit signed integer on all platforms.
Definition dbus-arch-deps.h:44
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition dbus-types.h:37
DBUS_INT64_MODIFIER
#define DBUS_INT64_MODIFIER
A string literal for a length modifier that is appropriate to print the dbus_int64_t and dbus_uint64_...
Definition dbus-arch-deps.h:39
dbus_uint64_t
_DBUS_GNUC_EXTENSION typedef unsigned long long dbus_uint64_t
A 64-bit unsigned integer.
Definition dbus-arch-deps.h:38
DBUS_INT64_CONSTANT
#define DBUS_INT64_CONSTANT(val)
Declare a 64-bit signed integer constant.
Definition dbus-arch-deps.h:41
dbus_int64_t
_DBUS_GNUC_EXTENSION typedef long long dbus_int64_t
A 64-bit signed integer.
Definition dbus-arch-deps.h:37
dbus_int16_t
short dbus_int16_t
A 16-bit signed integer on all platforms.
Definition dbus-arch-deps.h:47
DBus8ByteStruct
An 8-byte struct you could use to access int64 without having int64 support.
Definition dbus-types.h:145
DBusString
Definition dbus-string.h:47
DBusBasicValue
A simple value union that lets you access bytes as if they were various types; useful when dealing wi...
Definition dbus-types.h:161