1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-marshal-basic.c Marshalling routines for basic (primitive) types
4 * Copyright (C) 2002 CodeFactory AB
5 * Copyright (C) 2003, 2004, 2005 Red Hat, Inc.
7 * Licensed under the Academic Free License version 2.1
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "dbus-internals.h"
26 #include "dbus-marshal-basic.h"
27 #include "dbus-signature.h"
32 * @defgroup DBusMarshal marshaling and unmarshaling
33 * @ingroup DBusInternals
34 * @brief functions to marshal/unmarshal data from the wire
36 * Types and functions related to converting primitive data types from
37 * wire format to native machine format, and vice versa.
39 * A signature is just a string with multiple types one after the other.
40 * for example a type is "i" or "(ii)", a signature is "i(ii)"
41 * where i is int and (ii) is struct { int; int; }
47 pack_2_octets (dbus_uint16_t value,
51 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 2) == data);
53 if ((byte_order) == DBUS_LITTLE_ENDIAN)
54 *((dbus_uint16_t*)(data)) = DBUS_UINT16_TO_LE (value);
56 *((dbus_uint16_t*)(data)) = DBUS_UINT16_TO_BE (value);
60 pack_4_octets (dbus_uint32_t value,
64 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 4) == data);
66 if ((byte_order) == DBUS_LITTLE_ENDIAN)
67 *((dbus_uint32_t*)(data)) = DBUS_UINT32_TO_LE (value);
69 *((dbus_uint32_t*)(data)) = DBUS_UINT32_TO_BE (value);
73 pack_8_octets (DBusBasicValue value,
77 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 8) == data);
79 #ifdef DBUS_HAVE_INT64
80 if ((byte_order) == DBUS_LITTLE_ENDIAN)
81 *((dbus_uint64_t*)(data)) = DBUS_UINT64_TO_LE (value.u64);
83 *((dbus_uint64_t*)(data)) = DBUS_UINT64_TO_BE (value.u64);
85 *(DBus8ByteStruct*)data = value.u64;
86 swap_8_octets ((DBusBasicValue*)data, byte_order);
91 * Packs a 32 bit unsigned integer into a data pointer.
93 * @param value the value
94 * @param byte_order the byte order to use
95 * @param data the data pointer
98 _dbus_pack_uint32 (dbus_uint32_t value,
102 pack_4_octets (value, byte_order, data);
105 #ifndef DBUS_HAVE_INT64
108 swap_bytes (unsigned char *data,
111 unsigned char *p1 = data;
112 unsigned char *p2 = data + len - 1;
116 unsigned char tmp = *p1;
124 #endif /* !DBUS_HAVE_INT64 */
127 swap_8_octets (DBusBasicValue *value,
130 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
132 #ifdef DBUS_HAVE_INT64
133 value->u64 = DBUS_UINT64_SWAP_LE_BE (value->u64);
135 swap_bytes ((unsigned char *)value, 8);
141 static DBusBasicValue
142 unpack_8_octets (int byte_order,
143 const unsigned char *data)
147 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 8) == data);
148 _dbus_assert (sizeof (r) == 8);
150 #ifdef DBUS_HAVE_INT64
151 if (byte_order == DBUS_LITTLE_ENDIAN)
152 r.u64 = DBUS_UINT64_FROM_LE (*(dbus_uint64_t*)data);
154 r.u64 = DBUS_UINT64_FROM_BE (*(dbus_uint64_t*)data);
156 r.u64 = *(DBus8ByteStruct*)data;
157 swap_8_octets (&r, byte_order);
164 #ifndef _dbus_unpack_uint16
166 * Unpacks a 16 bit unsigned integer from a data pointer
168 * @param byte_order The byte order to use
169 * @param data the data pointer
170 * @returns the integer
173 _dbus_unpack_uint16 (int byte_order,
174 const unsigned char *data)
176 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 2) == data);
178 if (byte_order == DBUS_LITTLE_ENDIAN)
179 return DBUS_UINT16_FROM_LE (*(dbus_uint16_t*)data);
181 return DBUS_UINT16_FROM_BE (*(dbus_uint16_t*)data);
183 #endif /* _dbus_unpack_uint16 */
185 #ifndef _dbus_unpack_uint32
187 * Unpacks a 32 bit unsigned integer from a data pointer
189 * @param byte_order The byte order to use
190 * @param data the data pointer
191 * @returns the integer
194 _dbus_unpack_uint32 (int byte_order,
195 const unsigned char *data)
197 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, 4) == data);
199 if (byte_order == DBUS_LITTLE_ENDIAN)
200 return DBUS_UINT32_FROM_LE (*(dbus_uint32_t*)data);
202 return DBUS_UINT32_FROM_BE (*(dbus_uint32_t*)data);
204 #endif /* _dbus_unpack_uint32 */
207 set_2_octets (DBusString *str,
214 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
215 byte_order == DBUS_BIG_ENDIAN);
217 data = _dbus_string_get_data_len (str, offset, 2);
219 pack_2_octets (value, byte_order, data);
223 set_4_octets (DBusString *str,
230 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
231 byte_order == DBUS_BIG_ENDIAN);
233 data = _dbus_string_get_data_len (str, offset, 4);
235 pack_4_octets (value, byte_order, data);
239 set_8_octets (DBusString *str,
241 DBusBasicValue value,
246 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
247 byte_order == DBUS_BIG_ENDIAN);
249 data = _dbus_string_get_data_len (str, offset, 8);
251 pack_8_octets (value, byte_order, data);
255 * Sets the 4 bytes at the given offset to a marshaled unsigned
256 * integer, replacing anything found there previously.
258 * @param str the string to write the marshalled int to
259 * @param pos the byte offset where int should be written
260 * @param value the value
261 * @param byte_order the byte order to use
265 _dbus_marshal_set_uint32 (DBusString *str,
270 set_4_octets (str, pos, value, byte_order);
274 * Sets the existing marshaled string at the given offset with
275 * a new marshaled string. The given offset must point to
276 * an existing string or the wrong length will be deleted
277 * and replaced with the new string.
279 * Note: no attempt is made by this function to re-align
280 * any data which has been already marshalled after this
281 * string. Use with caution.
283 * @param str the string to write the marshalled string to
284 * @param pos the position of the marshaled string length
285 * @param value the value
286 * @param byte_order the byte order to use
287 * @param old_end_pos place to store byte after the nul byte of the old value
288 * @param new_end_pos place to store byte after the nul byte of the new value
289 * @returns #TRUE on success, #FALSE if no memory
293 set_string (DBusString *str,
300 int old_len, new_len;
303 _dbus_string_init_const (&dstr, value);
305 _dbus_assert (_DBUS_ALIGN_VALUE (pos, 4) == (unsigned) pos);
306 old_len = _dbus_unpack_uint32 (byte_order,
307 _dbus_string_get_const_data_len (str, pos, 4));
309 new_len = _dbus_string_get_length (&dstr);
311 if (!_dbus_string_replace_len (&dstr, 0, new_len,
312 str, pos + 4, old_len))
315 _dbus_marshal_set_uint32 (str, pos, new_len, byte_order);
318 *old_end_pos = pos + 4 + old_len + 1;
320 *new_end_pos = pos + 4 + new_len + 1;
326 * Sets the existing marshaled signature at the given offset to a new
327 * marshaled signature. Same basic ideas as set_string().
329 * @param str the string to write the marshalled signature to
330 * @param pos the position of the marshaled signature length
331 * @param value the value
332 * @param byte_order the byte order to use
333 * @param old_end_pos place to store byte after the nul byte of the old value
334 * @param new_end_pos place to store byte after the nul byte of the new value
335 * @returns #TRUE on success, #FALSE if no memory
339 set_signature (DBusString *str,
346 int old_len, new_len;
349 _dbus_string_init_const (&dstr, value);
351 old_len = _dbus_string_get_byte (str, pos);
352 new_len = _dbus_string_get_length (&dstr);
354 if (!_dbus_string_replace_len (&dstr, 0, new_len,
355 str, pos + 1, old_len))
358 _dbus_string_set_byte (str, pos, new_len);
361 *old_end_pos = pos + 1 + old_len + 1;
363 *new_end_pos = pos + 1 + new_len + 1;
369 * Sets an existing basic type value to a new value.
370 * Arguments work the same way as _dbus_marshal_basic_type().
372 * @param str the string
373 * @param pos location of the current value
374 * @param type the type of the current and new values
375 * @param value the address of the new value
376 * @param byte_order byte order for marshaling
377 * @param old_end_pos location to store end position of the old value, or #NULL
378 * @param new_end_pos location to store end position of the new value, or #NULL
379 * @returns #FALSE if no memory
382 _dbus_marshal_set_basic (DBusString *str,
390 const DBusBasicValue *vp;
397 _dbus_string_set_byte (str, pos, vp->byt);
399 *old_end_pos = pos + 1;
401 *new_end_pos = pos + 1;
404 case DBUS_TYPE_INT16:
405 case DBUS_TYPE_UINT16:
406 pos = _DBUS_ALIGN_VALUE (pos, 2);
407 set_2_octets (str, pos, vp->u16, byte_order);
409 *old_end_pos = pos + 2;
411 *new_end_pos = pos + 2;
414 case DBUS_TYPE_BOOLEAN:
415 case DBUS_TYPE_INT32:
416 case DBUS_TYPE_UINT32:
417 pos = _DBUS_ALIGN_VALUE (pos, 4);
418 set_4_octets (str, pos, vp->u32, byte_order);
420 *old_end_pos = pos + 4;
422 *new_end_pos = pos + 4;
425 case DBUS_TYPE_INT64:
426 case DBUS_TYPE_UINT64:
427 case DBUS_TYPE_DOUBLE:
428 pos = _DBUS_ALIGN_VALUE (pos, 8);
429 set_8_octets (str, pos, *vp, byte_order);
431 *old_end_pos = pos + 8;
433 *new_end_pos = pos + 8;
436 case DBUS_TYPE_STRING:
437 case DBUS_TYPE_OBJECT_PATH:
438 pos = _DBUS_ALIGN_VALUE (pos, 4);
439 _dbus_assert (vp->str != NULL);
440 return set_string (str, pos, vp->str, byte_order,
441 old_end_pos, new_end_pos);
443 case DBUS_TYPE_SIGNATURE:
444 _dbus_assert (vp->str != NULL);
445 return set_signature (str, pos, vp->str, byte_order,
446 old_end_pos, new_end_pos);
449 _dbus_assert_not_reached ("not a basic type");
456 * Convenience function to demarshal a 32 bit unsigned integer.
458 * @param str the string containing the data
459 * @param byte_order the byte order
460 * @param pos the position in the string
461 * @param new_pos the new position of the string
462 * @returns the demarshaled integer.
465 _dbus_marshal_read_uint32 (const DBusString *str,
470 pos = _DBUS_ALIGN_VALUE (pos, 4);
475 _dbus_assert (pos + 4 <= _dbus_string_get_length (str));
477 return _dbus_unpack_uint32 (byte_order,
478 _dbus_string_get_const_data (str) + pos);
482 * Demarshals a basic-typed value. The "value" pointer is always
483 * the address of a variable of the basic type. So e.g.
484 * if the basic type is "double" then the pointer is
485 * a double*, and if it's "char*" then the pointer is
488 * A value of type #DBusBasicValue is guaranteed to be large enough to
489 * hold any of the types that may be returned, which is handy if you
490 * are trying to do things generically. For example you can pass
491 * a DBusBasicValue* in to this function, and then pass the same
492 * DBusBasicValue* in to _dbus_marshal_basic_type() in order to
493 * move a value from one place to another.
495 * @param str the string containing the data
496 * @param pos position in the string
497 * @param type type of value to demarshal
498 * @param value pointer to return value data
499 * @param byte_order the byte order
500 * @param new_pos pointer to update with new position, or #NULL
503 _dbus_marshal_read_basic (const DBusString *str,
510 const char *str_data;
513 _dbus_assert (dbus_type_is_basic (type));
515 str_data = _dbus_string_get_const_data (str);
521 vp->byt = _dbus_string_get_byte (str, pos);
524 case DBUS_TYPE_INT16:
525 case DBUS_TYPE_UINT16:
526 pos = _DBUS_ALIGN_VALUE (pos, 2);
527 vp->u16 = *(dbus_uint16_t *)(str_data + pos);
528 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
529 vp->u16 = DBUS_UINT16_SWAP_LE_BE (vp->u16);
532 case DBUS_TYPE_INT32:
533 case DBUS_TYPE_UINT32:
534 case DBUS_TYPE_BOOLEAN:
535 pos = _DBUS_ALIGN_VALUE (pos, 4);
536 vp->u32 = *(dbus_uint32_t *)(str_data + pos);
537 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
538 vp->u32 = DBUS_UINT32_SWAP_LE_BE (vp->u32);
541 case DBUS_TYPE_INT64:
542 case DBUS_TYPE_UINT64:
543 case DBUS_TYPE_DOUBLE:
544 pos = _DBUS_ALIGN_VALUE (pos, 8);
545 #ifdef DBUS_HAVE_INT64
546 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
547 vp->u64 = DBUS_UINT64_SWAP_LE_BE (*(dbus_uint64_t*)(str_data + pos));
549 vp->u64 = *(dbus_uint64_t*)(str_data + pos);
551 vp->u64 = *(DBus8ByteStruct*) (str_data + pos);
552 swap_8_octets (vp, byte_order);
556 case DBUS_TYPE_STRING:
557 case DBUS_TYPE_OBJECT_PATH:
561 len = _dbus_marshal_read_uint32 (str, pos, byte_order, &pos);
563 vp->str = (char*) str_data + pos;
565 pos += len + 1; /* length plus nul */
568 case DBUS_TYPE_SIGNATURE:
572 len = _dbus_string_get_byte (str, pos);
575 vp->str = (char*) str_data + pos;
577 pos += len + 1; /* length plus nul */
581 _dbus_warn_check_failed ("type %s %d not a basic type\n",
582 _dbus_type_to_string (type), type);
583 _dbus_assert_not_reached ("not a basic type");
592 marshal_2_octets (DBusString *str,
601 _dbus_assert (sizeof (value) == 2);
603 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
604 value = DBUS_UINT16_SWAP_LE_BE (value);
606 orig_len = _dbus_string_get_length (str);
608 retval = _dbus_string_insert_2_aligned (str, insert_at,
609 (const unsigned char *)&value);
613 *pos_after = insert_at + (_dbus_string_get_length (str) - orig_len);
614 _dbus_assert (*pos_after <= _dbus_string_get_length (str));
621 marshal_4_octets (DBusString *str,
630 _dbus_assert (sizeof (value) == 4);
632 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
633 value = DBUS_UINT32_SWAP_LE_BE (value);
635 orig_len = _dbus_string_get_length (str);
637 retval = _dbus_string_insert_4_aligned (str, insert_at,
638 (const unsigned char *)&value);
642 *pos_after = insert_at + (_dbus_string_get_length (str) - orig_len);
643 _dbus_assert (*pos_after <= _dbus_string_get_length (str));
650 marshal_8_octets (DBusString *str,
652 DBusBasicValue value,
659 _dbus_assert (sizeof (value) == 8);
661 swap_8_octets (&value, byte_order);
663 orig_len = _dbus_string_get_length (str);
665 retval = _dbus_string_insert_8_aligned (str, insert_at,
666 (const unsigned char *)&value);
669 *pos_after = insert_at + _dbus_string_get_length (str) - orig_len;
677 MARSHAL_AS_SIGNATURE,
678 MARSHAL_AS_BYTE_ARRAY
682 marshal_len_followed_by_bytes (int marshal_as,
685 const unsigned char *value,
686 int data_len, /* doesn't include nul if any */
691 DBusString value_str;
694 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN || byte_order == DBUS_BIG_ENDIAN);
695 if (insert_at > _dbus_string_get_length (str))
696 _dbus_warn ("insert_at = %d string len = %d data_len = %d\n",
697 insert_at, _dbus_string_get_length (str), data_len);
699 if (marshal_as == MARSHAL_AS_BYTE_ARRAY)
700 value_len = data_len;
702 value_len = data_len + 1; /* value has a nul */
704 _dbus_string_init_const_len (&value_str, value, value_len);
708 if (marshal_as == MARSHAL_AS_SIGNATURE)
710 _dbus_assert (data_len <= DBUS_MAXIMUM_SIGNATURE_LENGTH);
711 _dbus_assert (data_len <= 255); /* same as max sig len right now */
713 if (!_dbus_string_insert_byte (str, pos, data_len))
720 if (!marshal_4_octets (str, pos, data_len,
725 if (!_dbus_string_copy_len (&value_str, 0, value_len,
731 _dbus_assert (_dbus_string_equal_substring (&value_str, 0, value_len,
733 _dbus_verbose_bytes_of_string (str, pos, value_len);
744 /* Delete what we've inserted */
745 _dbus_string_delete (str, insert_at, pos - insert_at);
751 marshal_string (DBusString *str,
757 return marshal_len_followed_by_bytes (MARSHAL_AS_STRING,
758 str, insert_at, value,
760 byte_order, pos_after);
764 marshal_signature (DBusString *str,
769 return marshal_len_followed_by_bytes (MARSHAL_AS_SIGNATURE,
770 str, insert_at, value,
772 DBUS_COMPILER_BYTE_ORDER, /* irrelevant */
777 * Marshals a basic-typed value. The "value" pointer is always the
778 * address of a variable containing the basic type value.
779 * So for example for int32 it will be dbus_int32_t*, and
780 * for string it will be const char**. This is for symmetry
781 * with _dbus_marshal_read_basic() and to have a simple
784 * @param str string to marshal to
785 * @param insert_at where to insert the value
786 * @param type type of value
787 * @param value pointer to a variable containing the value
788 * @param byte_order byte order
789 * @param pos_after #NULL or the position after the type
790 * @returns #TRUE on success
793 _dbus_marshal_write_basic (DBusString *str,
800 const DBusBasicValue *vp;
802 _dbus_assert (dbus_type_is_basic (type));
809 if (!_dbus_string_insert_byte (str, insert_at, vp->byt))
812 *pos_after = insert_at + 1;
815 case DBUS_TYPE_INT16:
816 case DBUS_TYPE_UINT16:
817 return marshal_2_octets (str, insert_at, vp->u16,
818 byte_order, pos_after);
820 case DBUS_TYPE_BOOLEAN:
821 return marshal_4_octets (str, insert_at, vp->u32 != FALSE,
822 byte_order, pos_after);
824 case DBUS_TYPE_INT32:
825 case DBUS_TYPE_UINT32:
826 return marshal_4_octets (str, insert_at, vp->u32,
827 byte_order, pos_after);
829 case DBUS_TYPE_INT64:
830 case DBUS_TYPE_UINT64:
831 case DBUS_TYPE_DOUBLE:
832 return marshal_8_octets (str, insert_at, *vp, byte_order, pos_after);
835 case DBUS_TYPE_STRING:
836 case DBUS_TYPE_OBJECT_PATH:
837 _dbus_assert (vp->str != NULL);
838 return marshal_string (str, insert_at, vp->str, byte_order, pos_after);
840 case DBUS_TYPE_SIGNATURE:
841 _dbus_assert (vp->str != NULL);
842 return marshal_signature (str, insert_at, vp->str, pos_after);
845 _dbus_assert_not_reached ("not a basic type");
852 marshal_1_octets_array (DBusString *str,
854 const unsigned char *value,
860 DBusString value_str;
862 _dbus_string_init_const_len (&value_str, value, n_elements);
866 if (!_dbus_string_copy_len (&value_str, 0, n_elements,
879 * Swaps the elements of an array to the opposite byte order
881 * @param data start of array
882 * @param n_elements number of elements
883 * @param alignment size of each element
886 _dbus_swap_array (unsigned char *data,
893 _dbus_assert (_DBUS_ALIGN_ADDRESS (data, alignment) == data);
895 /* we use const_data and cast it off so DBusString can be a const string
896 * for the unit tests. don't ask.
899 end = d + (n_elements * alignment);
905 #ifdef DBUS_HAVE_INT64
906 *((dbus_uint64_t*)d) = DBUS_UINT64_SWAP_LE_BE (*((dbus_uint64_t*)d));
908 swap_8_bytes ((DBusBasicValue*) d);
913 else if (alignment == 4)
917 *((dbus_uint32_t*)d) = DBUS_UINT32_SWAP_LE_BE (*((dbus_uint32_t*)d));
923 _dbus_assert (alignment == 2);
927 *((dbus_uint16_t*)d) = DBUS_UINT16_SWAP_LE_BE (*((dbus_uint16_t*)d));
934 swap_array (DBusString *str,
940 _dbus_assert (_DBUS_ALIGN_VALUE (array_start, alignment) == (unsigned) array_start);
942 if (byte_order != DBUS_COMPILER_BYTE_ORDER)
944 /* we use const_data and cast it off so DBusString can be a const string
945 * for the unit tests. don't ask.
947 _dbus_swap_array ((unsigned char*) (_dbus_string_get_const_data (str) + array_start),
948 n_elements, alignment);
953 marshal_fixed_multi (DBusString *str,
955 const DBusBasicValue *value,
966 _dbus_assert (n_elements <= DBUS_MAXIMUM_ARRAY_LENGTH / alignment);
968 old_string_len = _dbus_string_get_length (str);
970 len_in_bytes = n_elements * alignment;
971 array_start = insert_at;
973 /* Note that we do alignment padding unconditionally
974 * even if the array is empty; this means that
975 * padding + len is always equal to the number of bytes
979 if (!_dbus_string_insert_alignment (str, &array_start, alignment))
982 _dbus_string_init_const_len (&t,
983 (const unsigned char*) value,
986 if (!_dbus_string_copy (&t, 0,
990 swap_array (str, array_start, n_elements, byte_order, alignment);
993 *pos_after = array_start + len_in_bytes;
998 _dbus_string_delete (str, insert_at,
999 _dbus_string_get_length (str) - old_string_len);
1005 * Marshals a block of values of fixed-length type all at once, as an
1006 * optimization. dbus_type_is_fixed() returns #TRUE for fixed-length
1007 * types, which are the basic types minus the string-like types.
1009 * The value argument should be the adddress of an
1010 * array, so e.g. "const dbus_uint32_t**"
1012 * @param str string to marshal to
1013 * @param insert_at where to insert the value
1014 * @param element_type type of array elements
1015 * @param value address of an array to marshal
1016 * @param n_elements number of elements in the array
1017 * @param byte_order byte order
1018 * @param pos_after #NULL or the position after the type
1019 * @returns #TRUE on success
1022 _dbus_marshal_write_fixed_multi (DBusString *str,
1030 const void* vp = *(const DBusBasicValue**)value;
1032 _dbus_assert (dbus_type_is_fixed (element_type));
1033 _dbus_assert (n_elements >= 0);
1036 _dbus_verbose ("writing %d elements of %s\n",
1037 n_elements, _dbus_type_to_string (element_type));
1040 switch (element_type)
1042 case DBUS_TYPE_BYTE:
1043 return marshal_1_octets_array (str, insert_at, vp, n_elements, byte_order, pos_after);
1045 case DBUS_TYPE_INT16:
1046 case DBUS_TYPE_UINT16:
1047 return marshal_fixed_multi (str, insert_at, vp, n_elements, byte_order, 2, pos_after);
1048 /* FIXME: we canonicalize to 0 or 1 for the single boolean case
1049 * should we here too ? */
1050 case DBUS_TYPE_BOOLEAN:
1051 case DBUS_TYPE_INT32:
1052 case DBUS_TYPE_UINT32:
1053 return marshal_fixed_multi (str, insert_at, vp, n_elements, byte_order, 4, pos_after);
1055 case DBUS_TYPE_INT64:
1056 case DBUS_TYPE_UINT64:
1057 case DBUS_TYPE_DOUBLE:
1058 return marshal_fixed_multi (str, insert_at, vp, n_elements, byte_order, 8, pos_after);
1062 _dbus_assert_not_reached ("non fixed type in array write");
1071 * Skips over a basic-typed value, reporting the following position.
1073 * @param str the string containing the data
1074 * @param type type of value to read
1075 * @param byte_order the byte order
1076 * @param pos pointer to position in the string,
1077 * updated on return to new position
1080 _dbus_marshal_skip_basic (const DBusString *str,
1085 _dbus_assert (byte_order == DBUS_LITTLE_ENDIAN ||
1086 byte_order == DBUS_BIG_ENDIAN);
1090 case DBUS_TYPE_BYTE:
1093 case DBUS_TYPE_INT16:
1094 case DBUS_TYPE_UINT16:
1095 *pos = _DBUS_ALIGN_VALUE (*pos, 2);
1098 case DBUS_TYPE_BOOLEAN:
1099 case DBUS_TYPE_INT32:
1100 case DBUS_TYPE_UINT32:
1101 *pos = _DBUS_ALIGN_VALUE (*pos, 4);
1104 case DBUS_TYPE_INT64:
1105 case DBUS_TYPE_UINT64:
1106 case DBUS_TYPE_DOUBLE:
1107 *pos = _DBUS_ALIGN_VALUE (*pos, 8);
1110 case DBUS_TYPE_STRING:
1111 case DBUS_TYPE_OBJECT_PATH:
1115 len = _dbus_marshal_read_uint32 (str, *pos, byte_order, pos);
1117 *pos += len + 1; /* length plus nul */
1120 case DBUS_TYPE_SIGNATURE:
1124 len = _dbus_string_get_byte (str, *pos);
1126 *pos += len + 2; /* length byte plus length plus nul */
1130 _dbus_warn ("type %s not a basic type\n",
1131 _dbus_type_to_string (type));
1132 _dbus_assert_not_reached ("not a basic type");
1138 * Skips an array, returning the next position.
1140 * @param str the string containing the data
1141 * @param element_type the type of array elements
1142 * @param byte_order the byte order
1143 * @param pos pointer to position in the string,
1144 * updated on return to new position
1147 _dbus_marshal_skip_array (const DBusString *str,
1152 dbus_uint32_t array_len;
1156 i = _DBUS_ALIGN_VALUE (*pos, 4);
1158 array_len = _dbus_marshal_read_uint32 (str, i, byte_order, &i);
1160 alignment = _dbus_type_get_alignment (element_type);
1162 i = _DBUS_ALIGN_VALUE (i, alignment);
1164 *pos = i + array_len;
1168 * Gets the alignment requirement for the given type;
1169 * will be 1, 4, or 8.
1171 * @param typecode the type
1172 * @returns alignment of 1, 4, or 8
1175 _dbus_type_get_alignment (int typecode)
1179 case DBUS_TYPE_BYTE:
1180 case DBUS_TYPE_VARIANT:
1181 case DBUS_TYPE_SIGNATURE:
1183 case DBUS_TYPE_INT16:
1184 case DBUS_TYPE_UINT16:
1186 case DBUS_TYPE_BOOLEAN:
1187 case DBUS_TYPE_INT32:
1188 case DBUS_TYPE_UINT32:
1189 /* this stuff is 4 since it starts with a length */
1190 case DBUS_TYPE_STRING:
1191 case DBUS_TYPE_OBJECT_PATH:
1192 case DBUS_TYPE_ARRAY:
1194 case DBUS_TYPE_INT64:
1195 case DBUS_TYPE_UINT64:
1196 case DBUS_TYPE_DOUBLE:
1197 /* struct is 8 since it could contain an 8-aligned item
1198 * and it's simpler to just always align structs to 8;
1199 * we want the amount of padding in a struct of a given
1200 * type to be predictable, not location-dependent.
1201 * DICT_ENTRY is always the same as struct.
1203 case DBUS_TYPE_STRUCT:
1204 case DBUS_TYPE_DICT_ENTRY:
1208 _dbus_assert_not_reached ("unknown typecode in _dbus_type_get_alignment()");
1215 * Return #TRUE if the typecode is a valid typecode.
1216 * #DBUS_TYPE_INVALID surprisingly enough is not considered valid, and
1217 * random unknown bytes aren't either. This function is safe with
1220 * @returns #TRUE if valid
1223 _dbus_type_is_valid (int typecode)
1227 case DBUS_TYPE_BYTE:
1228 case DBUS_TYPE_BOOLEAN:
1229 case DBUS_TYPE_INT16:
1230 case DBUS_TYPE_UINT16:
1231 case DBUS_TYPE_INT32:
1232 case DBUS_TYPE_UINT32:
1233 case DBUS_TYPE_INT64:
1234 case DBUS_TYPE_UINT64:
1235 case DBUS_TYPE_DOUBLE:
1236 case DBUS_TYPE_STRING:
1237 case DBUS_TYPE_OBJECT_PATH:
1238 case DBUS_TYPE_SIGNATURE:
1239 case DBUS_TYPE_ARRAY:
1240 case DBUS_TYPE_STRUCT:
1241 case DBUS_TYPE_DICT_ENTRY:
1242 case DBUS_TYPE_VARIANT:
1251 * Returns a string describing the given type.
1253 * @param typecode the type to describe
1254 * @returns a constant string describing the type
1257 _dbus_type_to_string (int typecode)
1261 case DBUS_TYPE_INVALID:
1263 case DBUS_TYPE_BOOLEAN:
1265 case DBUS_TYPE_BYTE:
1267 case DBUS_TYPE_INT16:
1269 case DBUS_TYPE_UINT16:
1271 case DBUS_TYPE_INT32:
1273 case DBUS_TYPE_UINT32:
1275 case DBUS_TYPE_INT64:
1277 case DBUS_TYPE_UINT64:
1279 case DBUS_TYPE_DOUBLE:
1281 case DBUS_TYPE_STRING:
1283 case DBUS_TYPE_OBJECT_PATH:
1284 return "object_path";
1285 case DBUS_TYPE_SIGNATURE:
1287 case DBUS_TYPE_STRUCT:
1289 case DBUS_TYPE_DICT_ENTRY:
1290 return "dict_entry";
1291 case DBUS_TYPE_ARRAY:
1293 case DBUS_TYPE_VARIANT:
1295 case DBUS_STRUCT_BEGIN_CHAR:
1296 return "begin_struct";
1297 case DBUS_STRUCT_END_CHAR:
1298 return "end_struct";
1299 case DBUS_DICT_ENTRY_BEGIN_CHAR:
1300 return "begin_dict_entry";
1301 case DBUS_DICT_ENTRY_END_CHAR:
1302 return "end_dict_entry";
1309 * If in verbose mode, print a block of binary data.
1311 * @param data the data
1312 * @param len the length of the data
1313 * @param offset where to start counting for byte indexes
1316 _dbus_verbose_bytes (const unsigned char *data,
1321 const unsigned char *aligned;
1323 _dbus_assert (len >= 0);
1325 if (!_dbus_is_verbose())
1328 /* Print blanks on first row if appropriate */
1329 aligned = _DBUS_ALIGN_ADDRESS (data, 4);
1332 _dbus_assert (aligned <= data);
1334 if (aligned != data)
1336 _dbus_verbose ("%4d\t%p: ", - (data - aligned), aligned);
1337 while (aligned != data)
1339 _dbus_verbose (" ");
1344 /* now print the bytes */
1348 if (_DBUS_ALIGN_ADDRESS (&data[i], 4) == &data[i])
1350 _dbus_verbose ("%4d\t%p: ",
1351 offset + i, &data[i]);
1354 if (data[i] >= 32 &&
1356 _dbus_verbose (" '%c' ", data[i]);
1358 _dbus_verbose ("0x%s%x ",
1359 data[i] <= 0xf ? "0" : "", data[i]);
1363 if (_DBUS_ALIGN_ADDRESS (&data[i], 4) == &data[i])
1366 _dbus_verbose ("BE: %d LE: %d",
1367 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN, &data[i-4]),
1368 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN, &data[i-4]));
1371 _DBUS_ALIGN_ADDRESS (&data[i], 8) == &data[i])
1373 #ifdef DBUS_HAVE_INT64
1374 /* I think I probably mean "GNU libc printf" and not "GNUC"
1375 * but we'll wait until someone complains. If you hit this,
1376 * just turn off verbose mode as a workaround.
1379 _dbus_verbose (" u64: 0x%llx",
1380 *(dbus_uint64_t*)&data[i-8]);
1383 _dbus_verbose (" dbl: %g",
1384 *(double*)&data[i-8]);
1387 _dbus_verbose ("\n");
1391 _dbus_verbose ("\n");
1395 * Dump the given part of the string to verbose log.
1397 * @param str the string
1398 * @param start the start of range to dump
1399 * @param len length of range
1402 _dbus_verbose_bytes_of_string (const DBusString *str,
1409 real_len = _dbus_string_get_length (str);
1411 _dbus_assert (start >= 0);
1413 if (start > real_len)
1415 _dbus_verbose (" [%d,%d) is not inside string of length %d\n",
1416 start, len, real_len);
1420 if ((start + len) > real_len)
1422 _dbus_verbose (" [%d,%d) extends outside string of length %d\n",
1423 start, len, real_len);
1424 len = real_len - start;
1427 d = _dbus_string_get_const_data_len (str, start, len);
1429 _dbus_verbose_bytes (d, len, start);
1433 map_type_char_to_type (int t)
1435 if (t == DBUS_STRUCT_BEGIN_CHAR)
1436 return DBUS_TYPE_STRUCT;
1437 else if (t == DBUS_DICT_ENTRY_BEGIN_CHAR)
1438 return DBUS_TYPE_DICT_ENTRY;
1441 _dbus_assert (t != DBUS_STRUCT_END_CHAR);
1442 _dbus_assert (t != DBUS_DICT_ENTRY_END_CHAR);
1448 * Get the first type in the signature. The difference between this
1449 * and just getting the first byte of the signature is that you won't
1450 * get DBUS_STRUCT_BEGIN_CHAR, you'll get DBUS_TYPE_STRUCT
1453 * @param str string containing signature
1454 * @param pos where the signature starts
1455 * @returns the first type in the signature
1458 _dbus_first_type_in_signature (const DBusString *str,
1461 return map_type_char_to_type (_dbus_string_get_byte (str, pos));
1465 * Similar to #_dbus_first_type_in_signature, but operates
1466 * on a C string buffer.
1468 * @param str a C string buffer
1469 * @param pos where the signature starts
1470 * @returns the first type in the signature
1473 _dbus_first_type_in_signature_c_str (const char *str,
1476 return map_type_char_to_type (str[pos]);
1481 #ifdef DBUS_BUILD_TESTS
1482 #include "dbus-test.h"
1486 * Reads a block of fixed-length basic values, as an optimization
1487 * vs. reading each one individually into a new buffer.
1489 * This function returns the data in-place; it does not make a copy,
1490 * and it does not swap the bytes.
1492 * If you ask for #DBUS_TYPE_DOUBLE you will get a "const double*" back
1493 * and the "value" argument should be a "const double**" and so on.
1495 * @param str the string to read from
1496 * @param pos position to read from
1497 * @param element_type type of array elements
1498 * @param value place to return the array
1499 * @param n_elements number of array elements to read
1500 * @param byte_order the byte order, used to read the array length
1501 * @param new_pos #NULL or location to store a position after the elements
1504 _dbus_marshal_read_fixed_multi (const DBusString *str,
1515 _dbus_assert (dbus_type_is_fixed (element_type));
1516 _dbus_assert (dbus_type_is_basic (element_type));
1519 _dbus_verbose ("reading %d elements of %s\n",
1520 n_elements, _dbus_type_to_string (element_type));
1523 alignment = _dbus_type_get_alignment (element_type);
1525 pos = _DBUS_ALIGN_VALUE (pos, alignment);
1527 array_len = n_elements * alignment;
1529 *(const DBusBasicValue**) value = (void*) _dbus_string_get_const_data_len (str, pos, array_len);
1531 *new_pos = pos + array_len;
1535 swap_test_array (void *array,
1545 _dbus_string_init_const_len (&t, array, len_bytes);
1546 swap_array (&t, 0, len_bytes / alignment, byte_order, alignment);
1549 #define MARSHAL_BASIC(typename, byte_order, literal) \
1551 v_##typename = literal; \
1552 if (!_dbus_marshal_write_basic (&str, pos, DBUS_TYPE_##typename, \
1554 byte_order, NULL)) \
1555 _dbus_assert_not_reached ("no memory"); \
1558 #define DEMARSHAL_BASIC(typename, byte_order) \
1560 _dbus_marshal_read_basic (&str, pos, DBUS_TYPE_##typename, &v_##typename, \
1561 byte_order, &pos); \
1564 #define DEMARSHAL_BASIC_AND_CHECK(typename, byte_order, literal) \
1566 DEMARSHAL_BASIC (typename, byte_order); \
1567 if (literal != v_##typename) \
1569 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1570 _dbus_string_get_length (&str) - dump_pos); \
1571 _dbus_assert_not_reached ("demarshaled wrong value"); \
1575 #define MARSHAL_TEST(typename, byte_order, literal) \
1577 MARSHAL_BASIC (typename, byte_order, literal); \
1579 DEMARSHAL_BASIC_AND_CHECK (typename, byte_order, literal); \
1582 #define MARSHAL_TEST_STRCMP(typename, byte_order, literal) \
1584 MARSHAL_BASIC (typename, byte_order, literal); \
1586 DEMARSHAL_BASIC (typename, byte_order); \
1587 if (strcmp (literal, v_##typename) != 0) \
1589 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1590 _dbus_string_get_length (&str) - dump_pos); \
1591 _dbus_warn ("literal '%s'\nvalue '%s'\n", literal, v_##typename); \
1592 _dbus_assert_not_reached ("demarshaled wrong value"); \
1596 #define MARSHAL_FIXED_ARRAY(typename, byte_order, literal) \
1599 v_UINT32 = sizeof(literal); \
1600 if (!_dbus_marshal_write_basic (&str, pos, DBUS_TYPE_UINT32, &v_UINT32, \
1601 byte_order, &next)) \
1602 _dbus_assert_not_reached ("no memory"); \
1603 v_ARRAY_##typename = literal; \
1604 if (!_dbus_marshal_write_fixed_multi (&str, next, DBUS_TYPE_##typename, \
1605 &v_ARRAY_##typename, _DBUS_N_ELEMENTS(literal), \
1606 byte_order, NULL)) \
1607 _dbus_assert_not_reached ("no memory"); \
1610 #define DEMARSHAL_FIXED_ARRAY(typename, byte_order) \
1613 alignment = _dbus_type_get_alignment (DBUS_TYPE_##typename); \
1614 v_UINT32 = _dbus_marshal_read_uint32 (&str, dump_pos, byte_order, &next); \
1615 _dbus_marshal_read_fixed_multi (&str, next, DBUS_TYPE_##typename, &v_ARRAY_##typename, \
1616 v_UINT32/alignment, \
1617 byte_order, NULL); \
1618 swap_test_array (v_ARRAY_##typename, v_UINT32, \
1619 byte_order, alignment); \
1622 #define DEMARSHAL_FIXED_ARRAY_AND_CHECK(typename, byte_order, literal) \
1624 DEMARSHAL_FIXED_ARRAY (typename, byte_order); \
1625 if (memcmp (literal, v_ARRAY_##typename, sizeof (literal) != 0)) \
1627 _dbus_verbose ("MARSHALED DATA\n"); \
1628 _dbus_verbose_bytes_of_string (&str, dump_pos, \
1629 _dbus_string_get_length (&str) - dump_pos); \
1630 _dbus_verbose ("LITERAL DATA\n"); \
1631 _dbus_verbose_bytes ((char*)literal, sizeof (literal), 0); \
1632 _dbus_verbose ("READ DATA\n"); \
1633 _dbus_verbose_bytes ((char*)v_ARRAY_##typename, sizeof (literal), 0); \
1634 _dbus_assert_not_reached ("demarshaled wrong fixed array value"); \
1638 #define MARSHAL_TEST_FIXED_ARRAY(typename, byte_order, literal) \
1640 MARSHAL_FIXED_ARRAY (typename, byte_order, literal); \
1642 DEMARSHAL_FIXED_ARRAY_AND_CHECK (typename, byte_order, literal); \
1646 _dbus_marshal_test (void)
1651 unsigned char array1[5] = { 3, 4, 0, 1, 9 };
1652 dbus_int16_t array2[3] = { 124, 457, 780 };
1653 dbus_int32_t array4[3] = { 123, 456, 789 };
1654 #ifdef DBUS_HAVE_INT64
1655 dbus_int64_t array8[3] = { DBUS_INT64_CONSTANT (0x123ffffffff),
1656 DBUS_INT64_CONSTANT (0x456ffffffff),
1657 DBUS_INT64_CONSTANT (0x789ffffffff) };
1658 dbus_int64_t *v_ARRAY_INT64;
1660 unsigned char *v_ARRAY_BYTE;
1661 dbus_int16_t *v_ARRAY_INT16;
1662 dbus_uint16_t *v_ARRAY_UINT16;
1663 dbus_int32_t *v_ARRAY_INT32;
1664 dbus_uint32_t *v_ARRAY_UINT32;
1668 dbus_int16_t v_INT16;
1669 dbus_uint16_t v_UINT16;
1670 dbus_int32_t v_INT32;
1671 dbus_uint32_t v_UINT32;
1672 dbus_int64_t v_INT64;
1673 dbus_uint64_t v_UINT64;
1674 unsigned char v_BYTE;
1675 dbus_bool_t v_BOOLEAN;
1676 const char *v_STRING;
1677 const char *v_SIGNATURE;
1678 const char *v_OBJECT_PATH;
1681 if (!_dbus_string_init (&str))
1682 _dbus_assert_not_reached ("failed to init string");
1686 /* Marshal doubles */
1687 MARSHAL_BASIC (DOUBLE, DBUS_BIG_ENDIAN, 3.14);
1688 DEMARSHAL_BASIC (DOUBLE, DBUS_BIG_ENDIAN);
1690 if (!_DBUS_DOUBLES_BITWISE_EQUAL (t_DOUBLE, v_DOUBLE))
1691 _dbus_assert_not_reached ("got wrong double value");
1693 MARSHAL_BASIC (DOUBLE, DBUS_LITTLE_ENDIAN, 3.14);
1694 DEMARSHAL_BASIC (DOUBLE, DBUS_LITTLE_ENDIAN);
1696 if (!_DBUS_DOUBLES_BITWISE_EQUAL (t_DOUBLE, v_DOUBLE))
1697 _dbus_assert_not_reached ("got wrong double value");
1699 /* Marshal signed 16 integers */
1700 MARSHAL_TEST (INT16, DBUS_BIG_ENDIAN, -12345);
1701 MARSHAL_TEST (INT16, DBUS_LITTLE_ENDIAN, -12345);
1703 /* Marshal unsigned 16 integers */
1704 MARSHAL_TEST (UINT16, DBUS_BIG_ENDIAN, 0x1234);
1705 MARSHAL_TEST (UINT16, DBUS_LITTLE_ENDIAN, 0x1234);
1707 /* Marshal signed integers */
1708 MARSHAL_TEST (INT32, DBUS_BIG_ENDIAN, -12345678);
1709 MARSHAL_TEST (INT32, DBUS_LITTLE_ENDIAN, -12345678);
1711 /* Marshal unsigned integers */
1712 MARSHAL_TEST (UINT32, DBUS_BIG_ENDIAN, 0x12345678);
1713 MARSHAL_TEST (UINT32, DBUS_LITTLE_ENDIAN, 0x12345678);
1715 #ifdef DBUS_HAVE_INT64
1716 /* Marshal signed integers */
1717 MARSHAL_TEST (INT64, DBUS_BIG_ENDIAN, DBUS_INT64_CONSTANT (-0x123456789abc7));
1718 MARSHAL_TEST (INT64, DBUS_LITTLE_ENDIAN, DBUS_INT64_CONSTANT (-0x123456789abc7));
1720 /* Marshal unsigned integers */
1721 MARSHAL_TEST (UINT64, DBUS_BIG_ENDIAN, DBUS_UINT64_CONSTANT (0x123456789abc7));
1722 MARSHAL_TEST (UINT64, DBUS_LITTLE_ENDIAN, DBUS_UINT64_CONSTANT (0x123456789abc7));
1723 #endif /* DBUS_HAVE_INT64 */
1726 MARSHAL_TEST (BYTE, DBUS_BIG_ENDIAN, 5);
1727 MARSHAL_TEST (BYTE, DBUS_LITTLE_ENDIAN, 5);
1729 /* Marshal all possible bools! */
1730 MARSHAL_TEST (BOOLEAN, DBUS_BIG_ENDIAN, FALSE);
1731 MARSHAL_TEST (BOOLEAN, DBUS_LITTLE_ENDIAN, FALSE);
1732 MARSHAL_TEST (BOOLEAN, DBUS_BIG_ENDIAN, TRUE);
1733 MARSHAL_TEST (BOOLEAN, DBUS_LITTLE_ENDIAN, TRUE);
1735 /* Marshal strings */
1736 MARSHAL_TEST_STRCMP (STRING, DBUS_BIG_ENDIAN, "");
1737 MARSHAL_TEST_STRCMP (STRING, DBUS_LITTLE_ENDIAN, "");
1738 MARSHAL_TEST_STRCMP (STRING, DBUS_BIG_ENDIAN, "This is the dbus test string");
1739 MARSHAL_TEST_STRCMP (STRING, DBUS_LITTLE_ENDIAN, "This is the dbus test string");
1742 MARSHAL_TEST_STRCMP (OBJECT_PATH, DBUS_BIG_ENDIAN, "/a/b/c");
1743 MARSHAL_TEST_STRCMP (OBJECT_PATH, DBUS_LITTLE_ENDIAN, "/a/b/c");
1746 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_BIG_ENDIAN, "");
1747 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_LITTLE_ENDIAN, "");
1748 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_BIG_ENDIAN, "a(ii)");
1749 MARSHAL_TEST_STRCMP (SIGNATURE, DBUS_LITTLE_ENDIAN, "a(ii)");
1752 MARSHAL_TEST_FIXED_ARRAY (INT16, DBUS_BIG_ENDIAN, array2);
1753 MARSHAL_TEST_FIXED_ARRAY (INT16, DBUS_LITTLE_ENDIAN, array2);
1754 MARSHAL_TEST_FIXED_ARRAY (UINT16, DBUS_BIG_ENDIAN, array2);
1755 MARSHAL_TEST_FIXED_ARRAY (UINT16, DBUS_LITTLE_ENDIAN, array2);
1757 MARSHAL_TEST_FIXED_ARRAY (INT32, DBUS_BIG_ENDIAN, array4);
1758 MARSHAL_TEST_FIXED_ARRAY (INT32, DBUS_LITTLE_ENDIAN, array4);
1759 MARSHAL_TEST_FIXED_ARRAY (UINT32, DBUS_BIG_ENDIAN, array4);
1760 MARSHAL_TEST_FIXED_ARRAY (UINT32, DBUS_LITTLE_ENDIAN, array4);
1762 MARSHAL_TEST_FIXED_ARRAY (BYTE, DBUS_BIG_ENDIAN, array1);
1763 MARSHAL_TEST_FIXED_ARRAY (BYTE, DBUS_LITTLE_ENDIAN, array1);
1765 #ifdef DBUS_HAVE_INT64
1766 MARSHAL_TEST_FIXED_ARRAY (INT64, DBUS_BIG_ENDIAN, array8);
1767 MARSHAL_TEST_FIXED_ARRAY (INT64, DBUS_LITTLE_ENDIAN, array8);
1773 * FIXME restore the set/pack tests
1776 #ifdef DBUS_HAVE_INT64
1777 /* set/pack 64-bit integers */
1778 _dbus_string_set_length (&str, 8);
1781 _dbus_marshal_set_int64 (&str, DBUS_LITTLE_ENDIAN,
1782 0, DBUS_INT64_CONSTANT (-0x123456789abc7));
1784 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1785 _dbus_unpack_int64 (DBUS_LITTLE_ENDIAN,
1786 _dbus_string_get_const_data (&str)));
1789 _dbus_marshal_set_int64 (&str, DBUS_BIG_ENDIAN,
1790 0, DBUS_INT64_CONSTANT (-0x123456789abc7));
1792 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1793 _dbus_unpack_int64 (DBUS_BIG_ENDIAN,
1794 _dbus_string_get_const_data (&str)));
1796 /* signed little pack */
1797 _dbus_pack_int64 (DBUS_INT64_CONSTANT (-0x123456789abc7),
1799 _dbus_string_get_data (&str));
1801 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1802 _dbus_unpack_int64 (DBUS_LITTLE_ENDIAN,
1803 _dbus_string_get_const_data (&str)));
1805 /* signed big pack */
1806 _dbus_pack_int64 (DBUS_INT64_CONSTANT (-0x123456789abc7),
1808 _dbus_string_get_data (&str));
1810 _dbus_assert (DBUS_INT64_CONSTANT (-0x123456789abc7) ==
1811 _dbus_unpack_int64 (DBUS_BIG_ENDIAN,
1812 _dbus_string_get_const_data (&str)));
1814 /* unsigned little */
1815 _dbus_marshal_set_uint64 (&str, DBUS_LITTLE_ENDIAN,
1816 0, DBUS_UINT64_CONSTANT (0x123456789abc7));
1818 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1819 _dbus_unpack_uint64 (DBUS_LITTLE_ENDIAN,
1820 _dbus_string_get_const_data (&str)));
1823 _dbus_marshal_set_uint64 (&str, DBUS_BIG_ENDIAN,
1824 0, DBUS_UINT64_CONSTANT (0x123456789abc7));
1826 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1827 _dbus_unpack_uint64 (DBUS_BIG_ENDIAN,
1828 _dbus_string_get_const_data (&str)));
1830 /* unsigned little pack */
1831 _dbus_pack_uint64 (DBUS_UINT64_CONSTANT (0x123456789abc7),
1833 _dbus_string_get_data (&str));
1835 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1836 _dbus_unpack_uint64 (DBUS_LITTLE_ENDIAN,
1837 _dbus_string_get_const_data (&str)));
1839 /* unsigned big pack */
1840 _dbus_pack_uint64 (DBUS_UINT64_CONSTANT (0x123456789abc7),
1842 _dbus_string_get_data (&str));
1844 _dbus_assert (DBUS_UINT64_CONSTANT (0x123456789abc7) ==
1845 _dbus_unpack_uint64 (DBUS_BIG_ENDIAN,
1846 _dbus_string_get_const_data (&str)));
1847 #endif /* DBUS_HAVE_INT64 */
1849 /* set/pack 32-bit integers */
1850 _dbus_string_set_length (&str, 4);
1853 _dbus_marshal_set_int32 (&str, DBUS_LITTLE_ENDIAN,
1856 _dbus_assert (-0x123456 ==
1857 _dbus_unpack_int32 (DBUS_LITTLE_ENDIAN,
1858 _dbus_string_get_const_data (&str)));
1861 _dbus_marshal_set_int32 (&str, DBUS_BIG_ENDIAN,
1864 _dbus_assert (-0x123456 ==
1865 _dbus_unpack_int32 (DBUS_BIG_ENDIAN,
1866 _dbus_string_get_const_data (&str)));
1868 /* signed little pack */
1869 _dbus_pack_int32 (-0x123456,
1871 _dbus_string_get_data (&str));
1873 _dbus_assert (-0x123456 ==
1874 _dbus_unpack_int32 (DBUS_LITTLE_ENDIAN,
1875 _dbus_string_get_const_data (&str)));
1877 /* signed big pack */
1878 _dbus_pack_int32 (-0x123456,
1880 _dbus_string_get_data (&str));
1882 _dbus_assert (-0x123456 ==
1883 _dbus_unpack_int32 (DBUS_BIG_ENDIAN,
1884 _dbus_string_get_const_data (&str)));
1886 /* unsigned little */
1887 _dbus_marshal_set_uint32 (&str,
1889 DBUS_LITTLE_ENDIAN);
1891 _dbus_assert (0x123456 ==
1892 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN,
1893 _dbus_string_get_const_data (&str)));
1896 _dbus_marshal_set_uint32 (&str,
1900 _dbus_assert (0x123456 ==
1901 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN,
1902 _dbus_string_get_const_data (&str)));
1904 /* unsigned little pack */
1905 _dbus_pack_uint32 (0x123456,
1907 _dbus_string_get_data (&str));
1909 _dbus_assert (0x123456 ==
1910 _dbus_unpack_uint32 (DBUS_LITTLE_ENDIAN,
1911 _dbus_string_get_const_data (&str)));
1913 /* unsigned big pack */
1914 _dbus_pack_uint32 (0x123456,
1916 _dbus_string_get_data (&str));
1918 _dbus_assert (0x123456 ==
1919 _dbus_unpack_uint32 (DBUS_BIG_ENDIAN,
1920 _dbus_string_get_const_data (&str)));
1922 #endif /* set/pack tests for integers */
1924 /* Strings in-place set */
1925 byte_order = DBUS_LITTLE_ENDIAN;
1929 _dbus_string_set_length (&str, 0);
1931 /* reset pos for the macros */
1934 MARSHAL_TEST_STRCMP (STRING, byte_order, "Hello world");
1936 /* Set it to something longer */
1937 _dbus_string_init_const (&t, "Hello world foo");
1939 v_STRING = _dbus_string_get_const_data (&t);
1940 _dbus_marshal_set_basic (&str, 0, DBUS_TYPE_STRING,
1941 &v_STRING, byte_order, NULL, NULL);
1943 _dbus_marshal_read_basic (&str, 0, DBUS_TYPE_STRING,
1944 &v_STRING, byte_order,
1946 _dbus_assert (strcmp (v_STRING, "Hello world foo") == 0);
1948 /* Set it to something shorter */
1949 _dbus_string_init_const (&t, "Hello");
1951 v_STRING = _dbus_string_get_const_data (&t);
1952 _dbus_marshal_set_basic (&str, 0, DBUS_TYPE_STRING,
1953 &v_STRING, byte_order, NULL, NULL);
1954 _dbus_marshal_read_basic (&str, 0, DBUS_TYPE_STRING,
1955 &v_STRING, byte_order,
1957 _dbus_assert (strcmp (v_STRING, "Hello") == 0);
1959 /* Do the other byte order */
1960 if (byte_order == DBUS_LITTLE_ENDIAN)
1961 byte_order = DBUS_BIG_ENDIAN;
1967 _dbus_string_free (&str);
1972 #endif /* DBUS_BUILD_TESTS */