1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-message.c DBusMessage object
4 * Copyright (C) 2002, 2003 Red Hat Inc.
5 * Copyright (C) 2002, 2003 CodeFactory AB
7 * Licensed under the Academic Free License version 1.2
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.h"
27 #include "dbus-message.h"
28 #include "dbus-message-internal.h"
29 #include "dbus-memory.h"
30 #include "dbus-list.h"
31 #include "dbus-message-builder.h"
32 #include "dbus-dataslot.h"
36 * @defgroup DBusMessageInternals DBusMessage implementation details
37 * @ingroup DBusInternals
38 * @brief DBusMessage private implementation details.
40 * The guts of DBusMessage and its methods.
46 * Cached information about a header field in the message
50 int name_offset; /**< Offset to name of field */
51 int value_offset; /**< Offset to value of field */
54 /** Offset to byte order from start of header */
55 #define BYTE_ORDER_OFFSET 0
56 /** Offset to type from start of header */
58 /** Offset to flags from start of header */
59 #define FLAGS_OFFSET 2
60 /** Offset to version from start of header */
61 #define VERSION_OFFSET 3
62 /** Offset to header length from start of header */
63 #define HEADER_LENGTH_OFFSET 4
64 /** Offset to body length from start of header */
65 #define BODY_LENGTH_OFFSET 8
66 /** Offset to client serial from start of header */
67 #define CLIENT_SERIAL_OFFSET 12
71 * @brief Internals of DBusMessage
73 * Object representing a message received from or to be sent to
74 * another application. This is an opaque object, all members
79 DBusAtomic refcount; /**< Reference count */
81 DBusString header; /**< Header network data, stored
82 * separately from body so we can
83 * independently realloc it.
86 HeaderField header_fields[DBUS_HEADER_FIELD_LAST + 1]; /**< Track the location
87 * of each field in "header"
90 dbus_uint32_t client_serial; /**< Cached client serial value for speed */
91 dbus_uint32_t reply_serial; /**< Cached reply serial value for speed */
93 int header_padding; /**< bytes of alignment in header */
95 DBusString body; /**< Body network data. */
97 char byte_order; /**< Message byte order. */
99 DBusList *size_counters; /**< 0-N DBusCounter used to track message size. */
100 long size_counter_delta; /**< Size we incremented the size counters by. */
102 dbus_uint32_t changed_stamp; /**< Incremented when iterators are invalidated. */
104 unsigned int locked : 1; /**< Message being sent, no modifications allowed. */
106 DBusDataSlotList slot_list; /**< Data stored by allocated integer ID */
108 DBusString signature; /**< Signature */
112 DBUS_MESSAGE_ITER_TYPE_MESSAGE,
113 DBUS_MESSAGE_ITER_TYPE_ARRAY,
114 DBUS_MESSAGE_ITER_TYPE_DICT
117 /** typedef for internals of message iterator */
118 typedef struct DBusMessageRealIter DBusMessageRealIter;
121 * @brief Internals of DBusMessageIter
123 * Object representing a position in a message. All fields are internal.
125 struct DBusMessageRealIter
127 DBusMessageRealIter *parent_iter; /**< parent iter, or NULL */
128 DBusMessage *message; /**< Message used */
129 dbus_uint32_t changed_stamp; /**< stamp to detect invalid iters */
131 /* This is an int instead of an enum to get a guaranteed size for the dummy: */
132 int type; /**< type of iter */
134 int pos; /**< Current position in the string */
135 int end; /**< position right after the container */
136 int container_start; /**< offset of the start of the container */
137 int container_length_pos; /**< offset of the length of the container */
139 int wrote_dict_key; /**< whether we wrote the dict key for the current dict element */
141 int array_type_pos; /**< pointer to the position of the array element type */
142 int array_type_done; /**< TRUE if the array type is fully finished */
146 * Gets the data to be sent over the network for this message.
147 * The header and then the body should be written out.
148 * This function is guaranteed to always return the same
149 * data once a message is locked (with _dbus_message_lock()).
151 * @param message the message.
152 * @param header return location for message header data.
153 * @param body return location for message body data.
156 _dbus_message_get_network_data (DBusMessage *message,
157 const DBusString **header,
158 const DBusString **body)
160 _dbus_assert (message->locked);
162 *header = &message->header;
163 *body = &message->body;
167 clear_header_padding (DBusMessage *message)
169 _dbus_string_shorten (&message->header,
170 message->header_padding);
171 message->header_padding = 0;
175 append_header_padding (DBusMessage *message)
178 old_len = _dbus_string_get_length (&message->header);
179 if (!_dbus_string_align_length (&message->header, 8))
182 message->header_padding = _dbus_string_get_length (&message->header) - old_len;
187 #ifdef DBUS_BUILD_TESTS
188 /* tests-only until it's actually used */
190 get_int_field (DBusMessage *message,
195 _dbus_assert (field <= DBUS_HEADER_FIELD_LAST);
197 offset = message->header_fields[field].value_offset;
200 return -1; /* useless if -1 is a valid value of course */
202 return _dbus_demarshal_int32 (&message->header,
210 get_uint_field (DBusMessage *message,
215 _dbus_assert (field <= DBUS_HEADER_FIELD_LAST);
217 offset = message->header_fields[field].value_offset;
220 return 0; /* useless if 0 is a valid value of course */
222 return _dbus_demarshal_uint32 (&message->header,
229 get_string_field (DBusMessage *message,
236 offset = message->header_fields[field].value_offset;
238 _dbus_assert (field <= DBUS_HEADER_FIELD_LAST);
243 /* offset points to string length, string data follows it */
244 /* FIXME _dbus_demarshal_const_string() that returned
245 * a reference to the string plus its len might be nice.
249 *len = _dbus_demarshal_uint32 (&message->header,
254 data = _dbus_string_get_const_data (&message->header);
256 return data + (offset + 4);
259 /* returns FALSE if no memory, TRUE with NULL path if no field */
261 get_path_field_decomposed (DBusMessage *message,
267 offset = message->header_fields[field].value_offset;
269 _dbus_assert (field <= DBUS_HEADER_FIELD_LAST);
277 return _dbus_demarshal_object_path (&message->header,
284 #ifdef DBUS_BUILD_TESTS
286 append_int_field (DBusMessage *message,
290 _dbus_assert (!message->locked);
292 clear_header_padding (message);
294 message->header_fields[field].name_offset =
295 _dbus_string_get_length (&message->header);
297 if (!_dbus_string_append_byte (&message->header, field))
300 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_INT32))
303 if (!_dbus_string_align_length (&message->header, 4))
306 message->header_fields[field].value_offset =
307 _dbus_string_get_length (&message->header);
309 if (!_dbus_marshal_int32 (&message->header, message->byte_order,
313 if (!append_header_padding (message))
319 _dbus_string_set_length (&message->header,
320 message->header_fields[field].name_offset);
321 message->header_fields[field].name_offset = -1;
322 message->header_fields[field].value_offset = -1;
324 /* this must succeed because it was allocated on function entry and
325 * DBusString doesn't ever realloc smaller
327 if (!append_header_padding (message))
328 _dbus_assert_not_reached ("failed to reappend header padding");
334 append_uint_field (DBusMessage *message,
338 _dbus_assert (!message->locked);
340 clear_header_padding (message);
342 message->header_fields[field].name_offset =
343 _dbus_string_get_length (&message->header);
345 if (!_dbus_string_append_byte (&message->header, field))
348 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_UINT32))
351 if (!_dbus_string_align_length (&message->header, 4))
354 message->header_fields[field].value_offset =
355 _dbus_string_get_length (&message->header);
357 if (!_dbus_marshal_uint32 (&message->header, message->byte_order,
361 if (!append_header_padding (message))
367 _dbus_string_set_length (&message->header,
368 message->header_fields[field].name_offset);
369 message->header_fields[field].name_offset = -1;
370 message->header_fields[field].value_offset = -1;
372 /* this must succeed because it was allocated on function entry and
373 * DBusString doesn't ever realloc smaller
375 if (!append_header_padding (message))
376 _dbus_assert_not_reached ("failed to reappend header padding");
381 append_string_field (DBusMessage *message,
386 _dbus_assert (!message->locked);
388 clear_header_padding (message);
390 message->header_fields[field].name_offset =
391 _dbus_string_get_length (&message->header);
393 if (!_dbus_string_append_byte (&message->header, field))
396 if (!_dbus_string_append_byte (&message->header, type))
399 if (!_dbus_string_align_length (&message->header, 4))
402 message->header_fields[field].value_offset =
403 _dbus_string_get_length (&message->header);
405 if (!_dbus_marshal_string (&message->header, message->byte_order,
409 if (!append_header_padding (message))
415 _dbus_string_set_length (&message->header,
416 message->header_fields[field].name_offset);
417 message->header_fields[field].name_offset = -1;
418 message->header_fields[field].value_offset = -1;
420 /* this must succeed because it was allocated on function entry and
421 * DBusString doesn't ever realloc smaller
423 if (!append_header_padding (message))
424 _dbus_assert_not_reached ("failed to reappend header padding");
430 get_next_field (DBusMessage *message,
433 int offset = message->header_fields[field].name_offset;
436 int retval = DBUS_HEADER_FIELD_INVALID;
439 closest = _DBUS_INT_MAX;
440 while (i < DBUS_HEADER_FIELD_LAST)
442 if (message->header_fields[i].name_offset > offset &&
443 message->header_fields[i].name_offset < closest)
445 closest = message->header_fields[i].name_offset;
455 re_align_field_recurse (DBusMessage *message,
459 int old_name_offset = message->header_fields[field].name_offset;
460 int old_value_offset = message->header_fields[field].value_offset;
461 int prev_padding, padding, delta;
466 /* padding between the typecode byte and the value itself */
467 prev_padding = old_value_offset - old_name_offset + 2;
470 type = _dbus_string_get_byte (&message->header, pos);
477 case DBUS_TYPE_BOOLEAN:
480 case DBUS_TYPE_INT32:
481 case DBUS_TYPE_UINT32:
482 case DBUS_TYPE_STRING:
483 case DBUS_TYPE_OBJECT_PATH:
484 padding = _DBUS_ALIGN_VALUE (pos, 4) - pos;
486 case DBUS_TYPE_INT64:
487 case DBUS_TYPE_UINT64:
488 case DBUS_TYPE_DOUBLE:
489 padding = _DBUS_ALIGN_VALUE (pos, 8) - pos;
491 case DBUS_TYPE_NAMED:
492 case DBUS_TYPE_ARRAY:
494 /* FIXME This is no good; we have to handle undefined header fields
495 * also. SECURITY and spec compliance issue.
497 _dbus_assert_not_reached ("no defined header fields may contain a named, array or dict value");
499 case DBUS_TYPE_INVALID:
501 _dbus_assert_not_reached ("invalid type in marshalled header");
505 delta = padding - prev_padding;
508 if (!_dbus_string_insert_bytes (&message->header, pos, delta, 0))
513 _dbus_string_delete (&message->header, pos, -delta);
516 next_field = get_next_field (message, field);
517 if (next_field != DBUS_HEADER_FIELD_INVALID)
519 int next_offset = message->header_fields[next_field].name_offset;
521 _dbus_assert (next_offset > 0);
523 if (!re_align_field_recurse (message, field,
524 pos + padding + (next_offset - old_value_offset)))
529 if (!append_header_padding (message))
533 message->header_fields[field].name_offset = offset;
534 message->header_fields[field].value_offset = pos + padding;
541 _dbus_string_delete (&message->header, pos, delta);
545 /* this must succeed because it was allocated on function entry and
546 * DBusString doesn't ever realloc smaller
548 _dbus_string_insert_bytes (&message->header, pos, -delta, 0);
555 delete_field (DBusMessage *message,
558 int offset = message->header_fields[field].name_offset;
561 _dbus_assert (!message->locked);
566 clear_header_padding (message);
568 next_field = get_next_field (message, field);
569 if (next_field == DBUS_HEADER_FIELD_INVALID)
571 _dbus_string_set_length (&message->header, offset);
573 message->header_fields[field].name_offset = -1;
574 message->header_fields[field].value_offset = -1;
576 /* this must succeed because it was allocated on function entry and
577 * DBusString doesn't ever realloc smaller
579 if (!append_header_padding (message))
580 _dbus_assert_not_reached ("failed to reappend header padding");
587 int next_offset = message->header_fields[next_field].name_offset;
589 _dbus_assert (next_offset > 0);
591 if (!_dbus_string_init (&deleted))
594 if (!_dbus_string_move_len (&message->header,
595 offset, next_offset - offset,
598 _dbus_string_free (&deleted);
602 /* appends the header padding */
603 if (!re_align_field_recurse (message, next_field, offset))
605 /* this must succeed because it was allocated on function entry and
606 * DBusString doesn't ever realloc smaller
608 if (!_dbus_string_copy (&deleted, 0, &message->header, offset))
609 _dbus_assert_not_reached ("failed to revert to original field");
611 _dbus_string_free (&deleted);
615 _dbus_string_free (&deleted);
617 message->header_fields[field].name_offset = -1;
618 message->header_fields[field].value_offset = -1;
623 /* this must succeed because it was allocated on function entry and
624 * DBusString doesn't ever realloc smaller
626 if (!append_header_padding (message))
627 _dbus_assert_not_reached ("failed to reappend header padding");
633 #ifdef DBUS_BUILD_TESTS
635 set_int_field (DBusMessage *message,
639 int offset = message->header_fields[field].value_offset;
641 _dbus_assert (!message->locked);
645 /* need to append the field */
646 return append_int_field (message, field, value);
650 _dbus_marshal_set_int32 (&message->header,
660 set_uint_field (DBusMessage *message,
664 int offset = message->header_fields[field].value_offset;
666 _dbus_assert (!message->locked);
670 /* need to append the field */
671 return append_uint_field (message, field, value);
675 _dbus_marshal_set_uint32 (&message->header,
684 set_string_field (DBusMessage *message,
689 int offset = message->header_fields[field].value_offset;
691 _dbus_assert (!message->locked);
692 _dbus_assert (value != NULL);
696 /* need to append the field */
697 return append_string_field (message, field, type, value);
707 clear_header_padding (message);
709 old_value = _dbus_demarshal_string (&message->header,
716 len = strlen (value);
718 _dbus_string_init_const_len (&v, value,
719 len + 1); /* include nul */
720 if (!_dbus_marshal_set_string (&message->header,
724 dbus_free (old_value);
728 next_field = get_next_field (message, field);
729 if (next_field != DBUS_HEADER_FIELD_INVALID)
731 /* re-appends the header padding */
732 if (!re_align_field_recurse (message, next_field, next_offset))
734 len = strlen (old_value);
736 _dbus_string_init_const_len (&v, old_value,
737 len + 1); /* include nul */
738 if (!_dbus_marshal_set_string (&message->header,
741 _dbus_assert_not_reached ("failed to revert to original string");
743 dbus_free (old_value);
748 dbus_free (old_value);
753 /* this must succeed because it was allocated on function entry and
754 * DBusString doesn't ever realloc smaller
756 if (!append_header_padding (message))
757 _dbus_assert_not_reached ("failed to reappend header padding");
764 * Sets the serial number of a message.
765 * This can only be done once on a message.
767 * @param message the message
768 * @param serial the serial
771 _dbus_message_set_serial (DBusMessage *message,
774 _dbus_assert (!message->locked);
775 _dbus_assert (dbus_message_get_serial (message) == 0);
777 _dbus_marshal_set_uint32 (&message->header,
779 CLIENT_SERIAL_OFFSET,
782 message->client_serial = serial;
786 * Sets the reply serial of a message (the client serial
787 * of the message this is a reply to).
789 * @param message the message
790 * @param reply_serial the client serial
791 * @returns #FALSE if not enough memory
794 dbus_message_set_reply_serial (DBusMessage *message,
795 dbus_uint32_t reply_serial)
797 _dbus_assert (!message->locked);
799 if (set_uint_field (message,
800 DBUS_HEADER_FIELD_REPLY_SERIAL,
803 message->reply_serial = reply_serial;
811 * Returns the serial of a message or 0 if none has been specified.
812 * The message's serial number is provided by the application sending
813 * the message and is used to identify replies to this message. All
814 * messages received on a connection will have a serial, but messages
815 * you haven't sent yet may return 0.
817 * @param message the message
818 * @returns the client serial
821 dbus_message_get_serial (DBusMessage *message)
823 return message->client_serial;
827 * Returns the serial that the message is a reply to or 0 if none.
829 * @param message the message
830 * @returns the reply serial
833 dbus_message_get_reply_serial (DBusMessage *message)
835 return message->reply_serial;
839 * Adds a counter to be incremented immediately with the
840 * size of this message, and decremented by the size
841 * of this message when this message if finalized.
842 * The link contains a counter with its refcount already
843 * incremented, but the counter itself not incremented.
844 * Ownership of link and counter refcount is passed to
847 * @param message the message
848 * @param link link with counter as data
851 _dbus_message_add_size_counter_link (DBusMessage *message,
854 /* right now we don't recompute the delta when message
855 * size changes, and that's OK for current purposes
856 * I think, but could be important to change later.
857 * Do recompute it whenever there are no outstanding counters,
858 * since it's basically free.
860 if (message->size_counters == NULL)
862 message->size_counter_delta =
863 _dbus_string_get_length (&message->header) +
864 _dbus_string_get_length (&message->body);
867 _dbus_verbose ("message has size %ld\n",
868 message->size_counter_delta);
872 _dbus_list_append_link (&message->size_counters, link);
874 _dbus_counter_adjust (link->data, message->size_counter_delta);
878 * Adds a counter to be incremented immediately with the
879 * size of this message, and decremented by the size
880 * of this message when this message if finalized.
882 * @param message the message
883 * @param counter the counter
884 * @returns #FALSE if no memory
887 _dbus_message_add_size_counter (DBusMessage *message,
888 DBusCounter *counter)
892 link = _dbus_list_alloc_link (counter);
896 _dbus_counter_ref (counter);
897 _dbus_message_add_size_counter_link (message, link);
903 * Removes a counter tracking the size of this message, and decrements
904 * the counter by the size of this message.
906 * @param message the message
907 * @param link_return return the link used
908 * @param counter the counter
911 _dbus_message_remove_size_counter (DBusMessage *message,
912 DBusCounter *counter,
913 DBusList **link_return)
917 link = _dbus_list_find_last (&message->size_counters,
919 _dbus_assert (link != NULL);
921 _dbus_list_unlink (&message->size_counters,
926 _dbus_list_free_link (link);
928 _dbus_counter_adjust (counter, message->size_counter_delta);
930 _dbus_counter_unref (counter);
934 dbus_message_create_header (DBusMessage *message,
938 const char *interface,
940 const char *error_name)
944 _dbus_assert ((interface && member) ||
946 !(interface || member || error_name));
948 if (!_dbus_string_append_byte (&message->header, message->byte_order))
951 if (!_dbus_string_append_byte (&message->header, type))
955 if (!_dbus_string_append_byte (&message->header, flags))
958 if (!_dbus_string_append_byte (&message->header, DBUS_MAJOR_PROTOCOL_VERSION))
962 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
966 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
970 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
973 /* Marshal all the fields (Marshall Fields?) */
977 if (!append_string_field (message,
978 DBUS_HEADER_FIELD_PATH,
979 DBUS_TYPE_OBJECT_PATH,
986 if (!append_string_field (message,
987 DBUS_HEADER_FIELD_SERVICE,
993 if (interface != NULL)
995 if (!append_string_field (message,
996 DBUS_HEADER_FIELD_INTERFACE,
1004 if (!append_string_field (message,
1005 DBUS_HEADER_FIELD_MEMBER,
1011 if (error_name != NULL)
1013 if (!append_string_field (message,
1014 DBUS_HEADER_FIELD_ERROR_NAME,
1024 * Locks a message. Allows checking that applications don't keep a
1025 * reference to a message in the outgoing queue and change it
1026 * underneath us. Messages are locked when they enter the outgoing
1027 * queue (dbus_connection_send_message()), and the library complains
1028 * if the message is modified while locked.
1030 * @param message the message to lock.
1033 _dbus_message_lock (DBusMessage *message)
1035 if (!message->locked)
1037 /* Fill in our lengths */
1038 _dbus_marshal_set_uint32 (&message->header,
1039 message->byte_order,
1040 HEADER_LENGTH_OFFSET,
1041 _dbus_string_get_length (&message->header));
1043 _dbus_marshal_set_uint32 (&message->header,
1044 message->byte_order,
1046 _dbus_string_get_length (&message->body));
1048 message->locked = TRUE;
1055 * @defgroup DBusMessage DBusMessage
1057 * @brief Message to be sent or received over a DBusConnection.
1059 * A DBusMessage is the most basic unit of communication over a
1060 * DBusConnection. A DBusConnection represents a stream of messages
1061 * received from a remote application, and a stream of messages
1062 * sent to a remote application.
1068 * @typedef DBusMessage
1070 * Opaque data type representing a message received from or to be
1071 * sent to another application.
1075 dbus_message_new_empty_header (void)
1077 DBusMessage *message;
1080 message = dbus_new0 (DBusMessage, 1);
1081 if (message == NULL)
1084 message->refcount.value = 1;
1085 message->byte_order = DBUS_COMPILER_BYTE_ORDER;
1086 message->client_serial = 0;
1087 message->reply_serial = 0;
1089 _dbus_data_slot_list_init (&message->slot_list);
1092 while (i <= DBUS_HEADER_FIELD_LAST)
1094 message->header_fields[i].name_offset = -1;
1095 message->header_fields[i].value_offset = -1;
1099 if (!_dbus_string_init_preallocated (&message->header, 64))
1101 dbus_free (message);
1105 if (!_dbus_string_init_preallocated (&message->body, 64))
1107 _dbus_string_free (&message->header);
1108 dbus_free (message);
1112 if (!_dbus_string_init_preallocated (&message->signature, 4))
1114 _dbus_string_free (&message->header);
1115 _dbus_string_free (&message->body);
1116 dbus_free (message);
1124 * Constructs a new message of the given message type.
1125 * Types include #DBUS_MESSAGE_TYPE_METHOD_CALL,
1126 * #DBUS_MESSAGE_TYPE_SIGNAL, and so forth.
1128 * @param message_type type of message
1129 * @returns new message or #NULL If no memory
1132 dbus_message_new (int message_type)
1134 DBusMessage *message;
1136 _dbus_return_val_if_fail (message_type != DBUS_MESSAGE_TYPE_INVALID, NULL);
1138 message = dbus_message_new_empty_header ();
1139 if (message == NULL)
1142 if (!dbus_message_create_header (message,
1144 NULL, NULL, NULL, NULL, NULL))
1146 dbus_message_unref (message);
1154 * Constructs a new message to invoke a method on a remote
1155 * object. Returns #NULL if memory can't be allocated for the
1156 * message. The service may be #NULL in which case no service is set;
1157 * this is appropriate when using D-BUS in a peer-to-peer context (no
1158 * message bus). The interface may be #NULL, which means that
1159 * if multiple methods with the given name exist it is undefined
1160 * which one will be invoked.
1162 * @param service service that the message should be sent to or #NULL
1163 * @param path object path the message should be sent to
1164 * @param interface interface to invoke method on
1165 * @param method method to invoke
1167 * @returns a new DBusMessage, free with dbus_message_unref()
1168 * @see dbus_message_unref()
1171 dbus_message_new_method_call (const char *service,
1173 const char *interface,
1176 DBusMessage *message;
1178 _dbus_return_val_if_fail (path != NULL, NULL);
1179 _dbus_return_val_if_fail (method != NULL, NULL);
1181 message = dbus_message_new_empty_header ();
1182 if (message == NULL)
1185 if (!dbus_message_create_header (message,
1186 DBUS_MESSAGE_TYPE_METHOD_CALL,
1187 service, path, interface, method, NULL))
1189 dbus_message_unref (message);
1197 * Constructs a message that is a reply to a method call. Returns
1198 * #NULL if memory can't be allocated for the message.
1200 * @param method_call the message which the created
1201 * message is a reply to.
1202 * @returns a new DBusMessage, free with dbus_message_unref()
1203 * @see dbus_message_new_method_call(), dbus_message_unref()
1206 dbus_message_new_method_return (DBusMessage *method_call)
1208 DBusMessage *message;
1211 _dbus_return_val_if_fail (method_call != NULL, NULL);
1213 sender = get_string_field (method_call,
1214 DBUS_HEADER_FIELD_SENDER_SERVICE,
1217 /* sender is allowed to be null here in peer-to-peer case */
1219 message = dbus_message_new_empty_header ();
1220 if (message == NULL)
1223 if (!dbus_message_create_header (message,
1224 DBUS_MESSAGE_TYPE_METHOD_RETURN,
1225 sender, NULL, NULL, NULL, NULL))
1227 dbus_message_unref (message);
1231 dbus_message_set_no_reply (message, TRUE);
1233 if (!dbus_message_set_reply_serial (message,
1234 dbus_message_get_serial (method_call)))
1236 dbus_message_unref (message);
1244 * Constructs a new message representing a signal emission. Returns
1245 * #NULL if memory can't be allocated for the message.
1246 * A signal is identified by its originating interface, and
1247 * the name of the signal.
1249 * @param path the path to the object emitting the signal
1250 * @param interface the interface the signal is emitted from
1251 * @param name name of the signal
1252 * @returns a new DBusMessage, free with dbus_message_unref()
1253 * @see dbus_message_unref()
1256 dbus_message_new_signal (const char *path,
1257 const char *interface,
1260 DBusMessage *message;
1262 _dbus_return_val_if_fail (path != NULL, NULL);
1263 _dbus_return_val_if_fail (interface != NULL, NULL);
1264 _dbus_return_val_if_fail (name != NULL, NULL);
1266 message = dbus_message_new_empty_header ();
1267 if (message == NULL)
1270 if (!dbus_message_create_header (message,
1271 DBUS_MESSAGE_TYPE_SIGNAL,
1272 NULL, path, interface, name, NULL))
1274 dbus_message_unref (message);
1278 dbus_message_set_no_reply (message, TRUE);
1284 * Creates a new message that is an error reply to a certain message.
1285 * Error replies are possible in response to method calls primarily.
1287 * @param reply_to the original message
1288 * @param error_name the error name
1289 * @param error_message the error message string or #NULL for none
1290 * @returns a new error message
1293 dbus_message_new_error (DBusMessage *reply_to,
1294 const char *error_name,
1295 const char *error_message)
1297 DBusMessage *message;
1299 DBusMessageIter iter;
1301 _dbus_return_val_if_fail (reply_to != NULL, NULL);
1302 _dbus_return_val_if_fail (error_name != NULL, NULL);
1304 sender = get_string_field (reply_to,
1305 DBUS_HEADER_FIELD_SENDER_SERVICE,
1308 /* sender may be NULL for non-message-bus case or
1309 * when the message bus is dealing with an unregistered
1312 message = dbus_message_new_empty_header ();
1313 if (message == NULL)
1316 if (!dbus_message_create_header (message,
1317 DBUS_MESSAGE_TYPE_ERROR,
1318 sender, NULL, NULL, NULL, error_name))
1320 dbus_message_unref (message);
1324 dbus_message_set_no_reply (message, TRUE);
1326 if (!dbus_message_set_reply_serial (message,
1327 dbus_message_get_serial (reply_to)))
1329 dbus_message_unref (message);
1333 if (error_message != NULL)
1335 dbus_message_append_iter_init (message, &iter);
1336 if (!dbus_message_iter_append_string (&iter, error_message))
1338 dbus_message_unref (message);
1347 * Creates a new message that is an exact replica of the message
1348 * specified, except that its refcount is set to 1.
1350 * @param message the message.
1351 * @returns the new message.
1354 dbus_message_copy (const DBusMessage *message)
1356 DBusMessage *retval;
1359 _dbus_return_val_if_fail (message != NULL, NULL);
1361 retval = dbus_new0 (DBusMessage, 1);
1365 retval->refcount.value = 1;
1366 retval->byte_order = message->byte_order;
1367 retval->client_serial = message->client_serial;
1368 retval->reply_serial = message->reply_serial;
1369 retval->header_padding = message->header_padding;
1370 retval->locked = FALSE;
1372 if (!_dbus_string_init_preallocated (&retval->header,
1373 _dbus_string_get_length (&message->header)))
1379 if (!_dbus_string_init_preallocated (&retval->body,
1380 _dbus_string_get_length (&message->body)))
1382 _dbus_string_free (&retval->header);
1387 if (!_dbus_string_init_preallocated (&retval->signature,
1388 _dbus_string_get_length (&message->signature)))
1390 _dbus_string_free (&retval->header);
1391 _dbus_string_free (&retval->body);
1396 if (!_dbus_string_copy (&message->header, 0,
1397 &retval->header, 0))
1400 if (!_dbus_string_copy (&message->body, 0,
1404 if (!_dbus_string_copy (&message->signature, 0,
1405 &retval->signature, 0))
1408 for (i = 0; i <= DBUS_HEADER_FIELD_LAST; i++)
1410 retval->header_fields[i] = message->header_fields[i];
1416 _dbus_string_free (&retval->header);
1417 _dbus_string_free (&retval->body);
1418 _dbus_string_free (&retval->signature);
1426 * Increments the reference count of a DBusMessage.
1428 * @param message The message
1429 * @see dbus_message_unref
1432 dbus_message_ref (DBusMessage *message)
1434 dbus_int32_t old_refcount;
1436 _dbus_return_if_fail (message != NULL);
1438 old_refcount = _dbus_atomic_inc (&message->refcount);
1439 _dbus_assert (old_refcount >= 1);
1443 free_size_counter (void *element,
1446 DBusCounter *counter = element;
1447 DBusMessage *message = data;
1449 _dbus_counter_adjust (counter, - message->size_counter_delta);
1451 _dbus_counter_unref (counter);
1455 * Decrements the reference count of a DBusMessage.
1457 * @param message The message
1458 * @see dbus_message_ref
1461 dbus_message_unref (DBusMessage *message)
1463 dbus_int32_t old_refcount;
1465 _dbus_return_if_fail (message != NULL);
1467 old_refcount = _dbus_atomic_dec (&message->refcount);
1469 _dbus_assert (old_refcount >= 0);
1471 if (old_refcount == 1)
1473 /* This calls application callbacks! */
1474 _dbus_data_slot_list_free (&message->slot_list);
1476 _dbus_list_foreach (&message->size_counters,
1477 free_size_counter, message);
1478 _dbus_list_clear (&message->size_counters);
1480 _dbus_string_free (&message->header);
1481 _dbus_string_free (&message->body);
1482 _dbus_string_free (&message->signature);
1484 dbus_free (message);
1489 * Gets the type of a message. Types include
1490 * DBUS_MESSAGE_TYPE_METHOD_CALL, DBUS_MESSAGE_TYPE_METHOD_RETURN,
1491 * DBUS_MESSAGE_TYPE_ERROR, DBUS_MESSAGE_TYPE_SIGNAL, but other types
1492 * are allowed and all code must silently ignore messages of unknown
1493 * type. DBUS_MESSAGE_TYPE_INVALID will never be returned, however.
1496 * @param message the message
1497 * @returns the type of the message
1500 dbus_message_get_type (DBusMessage *message)
1504 type = _dbus_string_get_byte (&message->header, 1);
1505 _dbus_assert (type != DBUS_MESSAGE_TYPE_INVALID);
1511 * Sets the object path this message is being sent to (for
1512 * DBUS_MESSAGE_TYPE_METHOD_CALL) or the one a signal is being
1513 * emitted from (for DBUS_MESSAGE_TYPE_SIGNAL).
1515 * @param message the message
1516 * @param object_path the path
1517 * @returns #FALSE if not enough memory
1520 dbus_message_set_path (DBusMessage *message,
1521 const char *object_path)
1523 _dbus_return_val_if_fail (message != NULL, FALSE);
1524 _dbus_return_val_if_fail (!message->locked, FALSE);
1526 if (object_path == NULL)
1528 delete_field (message, DBUS_HEADER_FIELD_PATH);
1533 return set_string_field (message,
1534 DBUS_HEADER_FIELD_PATH,
1535 DBUS_TYPE_OBJECT_PATH,
1541 * Gets the object path this message is being sent to
1542 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1543 * from (for DBUS_MESSAGE_TYPE_SIGNAL).
1545 * @param message the message
1546 * @returns the path (should not be freed)
1549 dbus_message_get_path (DBusMessage *message)
1551 _dbus_return_val_if_fail (message != NULL, NULL);
1553 return get_string_field (message, DBUS_HEADER_FIELD_PATH, NULL);
1557 * Gets the object path this message is being sent to
1558 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1559 * from (for DBUS_MESSAGE_TYPE_SIGNAL) in a decomposed
1560 * format (one array element per path component).
1561 * Free the returned array with dbus_free_string_array().
1563 * An empty but non-NULL path array means the path "/".
1564 * So the path "/foo/bar" becomes { "foo", "bar", NULL }
1565 * and the path "/" becomes { NULL }.
1567 * @param message the message
1568 * @param path place to store allocated array of path components; #NULL set here if no path field exists
1569 * @returns #FALSE if no memory to allocate the array
1572 dbus_message_get_path_decomposed (DBusMessage *message,
1575 _dbus_return_val_if_fail (message != NULL, FALSE);
1576 _dbus_return_val_if_fail (path != NULL, FALSE);
1578 return get_path_field_decomposed (message,
1579 DBUS_HEADER_FIELD_PATH,
1584 * Sets the interface this message is being sent to
1585 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or
1586 * the interface a signal is being emitted from
1587 * (for DBUS_MESSAGE_TYPE_SIGNAL).
1589 * @param message the message
1590 * @param interface the interface
1591 * @returns #FALSE if not enough memory
1594 dbus_message_set_interface (DBusMessage *message,
1595 const char *interface)
1597 _dbus_return_val_if_fail (message != NULL, FALSE);
1598 _dbus_return_val_if_fail (!message->locked, FALSE);
1600 if (interface == NULL)
1602 delete_field (message, DBUS_HEADER_FIELD_INTERFACE);
1607 return set_string_field (message,
1608 DBUS_HEADER_FIELD_INTERFACE,
1615 * Gets the interface this message is being sent to
1616 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1617 * from (for DBUS_MESSAGE_TYPE_SIGNAL).
1618 * The interface name is fully-qualified (namespaced).
1620 * @param message the message
1621 * @returns the message interface (should not be freed)
1624 dbus_message_get_interface (DBusMessage *message)
1626 _dbus_return_val_if_fail (message != NULL, NULL);
1628 return get_string_field (message, DBUS_HEADER_FIELD_INTERFACE, NULL);
1632 * Sets the interface member being invoked
1633 * (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted
1634 * (DBUS_MESSAGE_TYPE_SIGNAL).
1635 * The interface name is fully-qualified (namespaced).
1637 * @param message the message
1638 * @param member the member
1639 * @returns #FALSE if not enough memory
1642 dbus_message_set_member (DBusMessage *message,
1645 _dbus_return_val_if_fail (message != NULL, FALSE);
1646 _dbus_return_val_if_fail (!message->locked, FALSE);
1650 delete_field (message, DBUS_HEADER_FIELD_MEMBER);
1655 return set_string_field (message,
1656 DBUS_HEADER_FIELD_MEMBER,
1663 * Gets the interface member being invoked
1664 * (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted
1665 * (DBUS_MESSAGE_TYPE_SIGNAL).
1667 * @param message the message
1668 * @returns the member name (should not be freed)
1671 dbus_message_get_member (DBusMessage *message)
1673 _dbus_return_val_if_fail (message != NULL, NULL);
1675 return get_string_field (message,
1676 DBUS_HEADER_FIELD_MEMBER,
1681 * Sets the name of the error (DBUS_MESSAGE_TYPE_ERROR).
1682 * The name is fully-qualified (namespaced).
1684 * @param message the message
1685 * @param error_name the name
1686 * @returns #FALSE if not enough memory
1689 dbus_message_set_error_name (DBusMessage *message,
1690 const char *error_name)
1692 _dbus_return_val_if_fail (message != NULL, FALSE);
1693 _dbus_return_val_if_fail (!message->locked, FALSE);
1695 if (error_name == NULL)
1697 delete_field (message, DBUS_HEADER_FIELD_ERROR_NAME);
1702 return set_string_field (message,
1703 DBUS_HEADER_FIELD_ERROR_NAME,
1710 * Gets the error name (DBUS_MESSAGE_TYPE_ERROR only).
1712 * @param message the message
1713 * @returns the error name (should not be freed)
1716 dbus_message_get_error_name (DBusMessage *message)
1718 _dbus_return_val_if_fail (message != NULL, NULL);
1720 return get_string_field (message,
1721 DBUS_HEADER_FIELD_ERROR_NAME,
1726 * Sets the message's destination service.
1728 * @param message the message
1729 * @param destination the destination service name
1730 * @returns #FALSE if not enough memory
1733 dbus_message_set_destination (DBusMessage *message,
1734 const char *destination)
1736 _dbus_return_val_if_fail (message != NULL, FALSE);
1737 _dbus_return_val_if_fail (!message->locked, FALSE);
1739 if (destination == NULL)
1741 delete_field (message, DBUS_HEADER_FIELD_SERVICE);
1746 return set_string_field (message,
1747 DBUS_HEADER_FIELD_SERVICE,
1754 * Gets the destination service of a message.
1756 * @param message the message
1757 * @returns the message destination service (should not be freed)
1760 dbus_message_get_destination (DBusMessage *message)
1762 _dbus_return_val_if_fail (message != NULL, NULL);
1764 return get_string_field (message,
1765 DBUS_HEADER_FIELD_SERVICE,
1770 * Appends fields to a message given a variable argument list. The
1771 * variable argument list should contain the type of the argument
1772 * followed by the value to add. Array values are specified by an int
1773 * typecode followed by a pointer to the array followed by an int
1774 * giving the length of the array. The argument list must be
1775 * terminated with #DBUS_TYPE_INVALID.
1777 * This function doesn't support dicts or non-fundamental arrays.
1779 * This function supports #DBUS_TYPE_INT64 and #DBUS_TYPE_UINT64
1780 * only if #DBUS_HAVE_INT64 is defined.
1782 * @param message the message
1783 * @param first_arg_type type of the first argument
1784 * @param ... value of first argument, list of additional type-value pairs
1785 * @returns #TRUE on success
1788 dbus_message_append_args (DBusMessage *message,
1795 _dbus_return_val_if_fail (message != NULL, FALSE);
1797 va_start (var_args, first_arg_type);
1798 retval = dbus_message_append_args_valist (message,
1807 * This function takes a va_list for use by language bindings.
1808 * It's otherwise the same as dbus_message_append_args().
1810 * @todo: Shouldn't this function clean up the changes to the message
1811 * on failures? (Yes)
1813 * @see dbus_message_append_args.
1814 * @param message the message
1815 * @param first_arg_type type of first argument
1816 * @param var_args value of first argument, then list of type/value pairs
1817 * @returns #TRUE on success
1820 dbus_message_append_args_valist (DBusMessage *message,
1825 DBusMessageIter iter;
1827 _dbus_return_val_if_fail (message != NULL, FALSE);
1829 old_len = _dbus_string_get_length (&message->body);
1831 type = first_arg_type;
1833 dbus_message_append_iter_init (message, &iter);
1840 if (!dbus_message_iter_append_nil (&iter))
1843 case DBUS_TYPE_BOOLEAN:
1844 if (!dbus_message_iter_append_boolean (&iter, va_arg (var_args, dbus_bool_t)))
1847 case DBUS_TYPE_INT32:
1848 if (!dbus_message_iter_append_int32 (&iter, va_arg (var_args, dbus_int32_t)))
1851 case DBUS_TYPE_UINT32:
1852 if (!dbus_message_iter_append_uint32 (&iter, va_arg (var_args, dbus_uint32_t)))
1855 #ifdef DBUS_HAVE_INT64
1856 case DBUS_TYPE_INT64:
1857 if (!dbus_message_iter_append_int64 (&iter, va_arg (var_args, dbus_int64_t)))
1860 case DBUS_TYPE_UINT64:
1861 if (!dbus_message_iter_append_uint64 (&iter, va_arg (var_args, dbus_uint64_t)))
1864 #endif /* DBUS_HAVE_INT64 */
1865 case DBUS_TYPE_DOUBLE:
1866 if (!dbus_message_iter_append_double (&iter, va_arg (var_args, double)))
1869 case DBUS_TYPE_STRING:
1870 if (!dbus_message_iter_append_string (&iter, va_arg (var_args, const char *)))
1873 case DBUS_TYPE_OBJECT_PATH:
1876 case DBUS_TYPE_NAMED:
1879 unsigned char *data;
1882 name = va_arg (var_args, const char *);
1883 data = va_arg (var_args, unsigned char *);
1884 len = va_arg (var_args, int);
1886 if (!dbus_message_iter_append_named (&iter, name, data, len))
1890 case DBUS_TYPE_ARRAY:
1895 type = va_arg (var_args, int);
1896 data = va_arg (var_args, void *);
1897 len = va_arg (var_args, int);
1901 case DBUS_TYPE_BYTE:
1902 if (!dbus_message_iter_append_byte_array (&iter, (unsigned char *)data, len))
1905 case DBUS_TYPE_BOOLEAN:
1906 if (!dbus_message_iter_append_boolean_array (&iter, (unsigned char *)data, len))
1909 case DBUS_TYPE_INT32:
1910 if (!dbus_message_iter_append_int32_array (&iter, (dbus_int32_t *)data, len))
1913 case DBUS_TYPE_UINT32:
1914 if (!dbus_message_iter_append_uint32_array (&iter, (dbus_uint32_t *)data, len))
1917 #ifdef DBUS_HAVE_INT64
1918 case DBUS_TYPE_INT64:
1919 if (!dbus_message_iter_append_int64_array (&iter, (dbus_int64_t *)data, len))
1922 case DBUS_TYPE_UINT64:
1923 if (!dbus_message_iter_append_uint64_array (&iter, (dbus_uint64_t *)data, len))
1926 #endif /* DBUS_HAVE_INT64 */
1927 case DBUS_TYPE_DOUBLE:
1928 if (!dbus_message_iter_append_double_array (&iter, (double *)data, len))
1931 case DBUS_TYPE_STRING:
1932 if (!dbus_message_iter_append_string_array (&iter, (const char **)data, len))
1936 case DBUS_TYPE_ARRAY:
1937 case DBUS_TYPE_NAMED:
1938 case DBUS_TYPE_DICT:
1939 _dbus_warn ("dbus_message_append_args_valist doesn't support recursive arrays\n");
1942 _dbus_warn ("Unknown field type %d\n", type);
1948 case DBUS_TYPE_DICT:
1949 _dbus_warn ("dbus_message_append_args_valist doesn't support dicts\n");
1952 _dbus_warn ("Unknown field type %d\n", type);
1956 type = va_arg (var_args, int);
1967 * Gets arguments from a message given a variable argument list.
1968 * The variable argument list should contain the type of the
1969 * argumen followed by a pointer to where the value should be
1970 * stored. The list is terminated with #DBUS_TYPE_INVALID.
1972 * @param message the message
1973 * @param error error to be filled in on failure
1974 * @param first_arg_type the first argument type
1975 * @param ... location for first argument value, then list of type-location pairs
1976 * @returns #FALSE if the error was set
1979 dbus_message_get_args (DBusMessage *message,
1987 _dbus_return_val_if_fail (message != NULL, FALSE);
1988 _dbus_return_val_if_error_is_set (error, FALSE);
1990 va_start (var_args, first_arg_type);
1991 retval = dbus_message_get_args_valist (message, error, first_arg_type, var_args);
1998 * This function takes a va_list for use by language bindings
2000 * @todo We need to free the argument data when an error occurs.
2002 * @see dbus_message_get_args
2003 * @param message the message
2004 * @param error error to be filled in
2005 * @param first_arg_type type of the first argument
2006 * @param var_args return location for first argument, followed by list of type/location pairs
2007 * @returns #FALSE if error was set
2010 dbus_message_get_args_valist (DBusMessage *message,
2015 DBusMessageIter iter;
2017 _dbus_return_val_if_fail (message != NULL, FALSE);
2018 _dbus_return_val_if_error_is_set (error, FALSE);
2020 dbus_message_iter_init (message, &iter);
2021 return dbus_message_iter_get_args_valist (&iter, error, first_arg_type, var_args);
2025 * Gets arguments from a message iterator given a variable argument list.
2026 * The variable argument list should contain the type of the
2027 * argumen followed by a pointer to where the value should be
2028 * stored. The list is terminated with 0.
2030 * @param iter the message iterator
2031 * @param error error to be filled in on failure
2032 * @param first_arg_type the first argument type
2033 * @param ... location for first argument value, then list of type-location pairs
2034 * @returns #FALSE if the error was set
2037 dbus_message_iter_get_args (DBusMessageIter *iter,
2045 _dbus_return_val_if_fail (iter != NULL, FALSE);
2046 _dbus_return_val_if_error_is_set (error, FALSE);
2048 va_start (var_args, first_arg_type);
2049 retval = dbus_message_iter_get_args_valist (iter, error, first_arg_type, var_args);
2056 * This function takes a va_list for use by language bindings
2058 * This function supports #DBUS_TYPE_INT64 and #DBUS_TYPE_UINT64
2059 * only if #DBUS_HAVE_INT64 is defined.
2061 * @todo this function (or some lower-level non-convenience function)
2062 * needs better error handling; should allow the application to
2063 * distinguish between out of memory, and bad data from the remote
2064 * app. It also needs to not leak a bunch of args when it gets
2065 * to the arg that's bad, as that would be a security hole
2066 * (allow one app to force another to leak memory)
2068 * @todo We need to free the argument data when an error occurs.
2070 * @see dbus_message_get_args
2071 * @param iter the message iter
2072 * @param error error to be filled in
2073 * @param first_arg_type type of the first argument
2074 * @param var_args return location for first argument, followed by list of type/location pairs
2075 * @returns #FALSE if error was set
2078 dbus_message_iter_get_args_valist (DBusMessageIter *iter,
2083 int spec_type, msg_type, i;
2086 _dbus_return_val_if_fail (iter != NULL, FALSE);
2087 _dbus_return_val_if_error_is_set (error, FALSE);
2091 spec_type = first_arg_type;
2094 while (spec_type != 0)
2096 msg_type = dbus_message_iter_get_arg_type (iter);
2098 if (msg_type != spec_type)
2100 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
2101 "Argument %d is specified to be of type \"%s\", but "
2102 "is actually of type \"%s\"\n", i,
2103 _dbus_type_to_string (spec_type),
2104 _dbus_type_to_string (msg_type));
2113 case DBUS_TYPE_BYTE:
2117 ptr = va_arg (var_args, unsigned char *);
2119 *ptr = dbus_message_iter_get_byte (iter);
2122 case DBUS_TYPE_BOOLEAN:
2126 ptr = va_arg (var_args, dbus_bool_t *);
2128 *ptr = dbus_message_iter_get_boolean (iter);
2131 case DBUS_TYPE_INT32:
2135 ptr = va_arg (var_args, dbus_int32_t *);
2137 *ptr = dbus_message_iter_get_int32 (iter);
2140 case DBUS_TYPE_UINT32:
2144 ptr = va_arg (var_args, dbus_uint32_t *);
2146 *ptr = dbus_message_iter_get_uint32 (iter);
2149 #ifdef DBUS_HAVE_INT64
2150 case DBUS_TYPE_INT64:
2154 ptr = va_arg (var_args, dbus_int64_t *);
2156 *ptr = dbus_message_iter_get_int64 (iter);
2159 case DBUS_TYPE_UINT64:
2163 ptr = va_arg (var_args, dbus_uint64_t *);
2165 *ptr = dbus_message_iter_get_uint64 (iter);
2168 #endif /* DBUS_HAVE_INT64 */
2170 case DBUS_TYPE_DOUBLE:
2174 ptr = va_arg (var_args, double *);
2176 *ptr = dbus_message_iter_get_double (iter);
2180 case DBUS_TYPE_STRING:
2184 ptr = va_arg (var_args, char **);
2186 *ptr = dbus_message_iter_get_string (iter);
2190 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2197 case DBUS_TYPE_NAMED:
2200 unsigned char **data;
2203 name = va_arg (var_args, char **);
2204 data = va_arg (var_args, unsigned char **);
2205 len = va_arg (var_args, int *);
2207 if (!dbus_message_iter_get_named (iter, name, data, len))
2209 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2214 case DBUS_TYPE_ARRAY:
2219 type = va_arg (var_args, int);
2220 data = va_arg (var_args, void *);
2221 len = va_arg (var_args, int *);
2223 _dbus_return_val_if_fail (data != NULL, FALSE);
2224 _dbus_return_val_if_fail (len != NULL, FALSE);
2226 if (dbus_message_iter_get_array_type (iter) != type)
2228 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
2229 "Argument %d is specified to be of type \"array of %s\", but "
2230 "is actually of type \"array of %s\"\n", i,
2231 _dbus_type_to_string (type),
2232 _dbus_type_to_string (dbus_message_iter_get_array_type (iter)));
2238 case DBUS_TYPE_BYTE:
2239 if (!dbus_message_iter_get_byte_array (iter, (unsigned char **)data, len))
2241 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2245 case DBUS_TYPE_BOOLEAN:
2246 if (!dbus_message_iter_get_boolean_array (iter, (unsigned char **)data, len))
2248 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2252 case DBUS_TYPE_INT32:
2253 if (!dbus_message_iter_get_int32_array (iter, (dbus_int32_t **)data, len))
2255 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2259 case DBUS_TYPE_UINT32:
2260 if (!dbus_message_iter_get_uint32_array (iter, (dbus_uint32_t **)data, len))
2262 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2266 #ifdef DBUS_HAVE_INT64
2267 case DBUS_TYPE_INT64:
2268 if (!dbus_message_iter_get_int64_array (iter, (dbus_int64_t **)data, len))
2270 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2274 case DBUS_TYPE_UINT64:
2275 if (!dbus_message_iter_get_uint64_array (iter, (dbus_uint64_t **)data, len))
2277 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2281 #endif /* DBUS_HAVE_INT64 */
2282 case DBUS_TYPE_DOUBLE:
2283 if (!dbus_message_iter_get_double_array (iter, (double **)data, len))
2285 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2289 case DBUS_TYPE_STRING:
2290 if (!dbus_message_iter_get_string_array (iter, (char ***)data, len))
2292 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2297 case DBUS_TYPE_ARRAY:
2298 case DBUS_TYPE_NAMED:
2299 case DBUS_TYPE_DICT:
2300 _dbus_warn ("dbus_message_get_args_valist doesn't support recursive arrays\n");
2301 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2304 _dbus_warn ("Unknown field type %d\n", type);
2305 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2310 case DBUS_TYPE_DICT:
2311 _dbus_warn ("dbus_message_get_args_valist doesn't support dicts\n");
2312 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2315 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2316 _dbus_warn ("Unknown field type %d\n", spec_type);
2320 spec_type = va_arg (var_args, int);
2321 if (spec_type != 0 && !dbus_message_iter_next (iter))
2323 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
2324 "Message has only %d arguments, but more were expected", i);
2340 * Initializes a DBusMessageIter representing the arguments of the
2341 * message passed in.
2343 * @param message the message
2344 * @param iter pointer to an iterator to initialize
2347 dbus_message_iter_init (DBusMessage *message,
2348 DBusMessageIter *iter)
2350 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2352 _dbus_return_if_fail (message != NULL);
2353 _dbus_return_if_fail (iter != NULL);
2355 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
2357 real->message = message;
2358 real->parent_iter = NULL;
2359 real->changed_stamp = message->changed_stamp;
2361 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
2363 real->end = _dbus_string_get_length (&message->body);
2365 real->container_start = 0;
2366 real->container_length_pos = 0;
2367 real->wrote_dict_key = 0;
2368 real->array_type_pos = 0;
2371 #ifndef DBUS_DISABLE_CHECKS
2373 dbus_message_iter_check (DBusMessageRealIter *iter)
2377 _dbus_warn ("dbus iterator check failed: iterator is NULL\n");
2381 if (iter->changed_stamp != iter->message->changed_stamp)
2383 _dbus_warn ("dbus iterator check failed: invalid iterator, must re-initialize it after modifying the message\n");
2387 if (iter->pos < 0 || iter->pos > iter->end)
2389 _dbus_warn ("dbus iterator check failed: invalid position\n");
2395 #endif /* DBUS_DISABLE_CHECKS */
2398 skip_array_type (DBusMessageRealIter *iter, int pos)
2404 data = _dbus_string_get_const_data_len (&iter->message->body,
2407 while (*data == DBUS_TYPE_ARRAY);
2412 /* FIXME what are these _dbus_type_is_valid() checks for?
2413 * haven't we validated the message?
2416 dbus_message_iter_get_data_start (DBusMessageRealIter *iter, int *type)
2423 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2424 data = _dbus_string_get_const_data_len (&iter->message->body,
2426 if (_dbus_type_is_valid (*data))
2429 *type = DBUS_TYPE_INVALID;
2431 return skip_array_type (iter, iter->pos);
2433 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2434 data = _dbus_string_get_const_data_len (&iter->message->body,
2435 iter->array_type_pos, 1);
2436 if (_dbus_type_is_valid (*data))
2439 *type = DBUS_TYPE_INVALID;
2443 case DBUS_MESSAGE_ITER_TYPE_DICT:
2444 /* Get the length of the string */
2445 len = _dbus_demarshal_uint32 (&iter->message->body,
2446 iter->message->byte_order,
2448 pos = pos + len + 1;
2450 data = _dbus_string_get_const_data_len (&iter->message->body,
2452 if (_dbus_type_is_valid (*data))
2455 *type = DBUS_TYPE_INVALID;
2457 return skip_array_type (iter, pos);
2460 _dbus_assert_not_reached ("Invalid iter type");
2463 *type = DBUS_TYPE_INVALID;
2469 * Checks if an iterator has any more fields.
2471 * @param iter the message iter
2472 * @returns #TRUE if there are more fields
2476 dbus_message_iter_has_next (DBusMessageIter *iter)
2478 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2482 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2484 if (real->pos >= real->end)
2487 pos = dbus_message_iter_get_data_start (real, &type);
2489 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
2490 real->message->byte_order,
2491 type, pos, &end_pos))
2494 if (end_pos >= real->end)
2501 * Moves the iterator to the next field.
2503 * @param iter The message iter
2504 * @returns #TRUE if the iterator was moved to the next field
2507 dbus_message_iter_next (DBusMessageIter *iter)
2509 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2513 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2515 pos = dbus_message_iter_get_data_start (real, &type);
2517 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
2518 real->message->byte_order,
2519 type, pos, &end_pos))
2522 if (end_pos >= real->end)
2525 real->pos = end_pos;
2531 * Returns the argument type of the argument that the
2532 * message iterator points at.
2534 * @param iter the message iter
2535 * @returns the field type
2538 dbus_message_iter_get_arg_type (DBusMessageIter *iter)
2540 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2543 _dbus_return_val_if_fail (dbus_message_iter_check (real), DBUS_TYPE_INVALID);
2545 if (real->pos >= real->end)
2547 _dbus_verbose (" iterator at or beyond end of message\n");
2548 return DBUS_TYPE_INVALID;
2551 pos = dbus_message_iter_get_data_start (real, &type);
2556 /* FIXME why do we validate the typecode in here, hasn't the message
2557 * already been verified?
2560 iter_get_array_type (DBusMessageRealIter *iter, int *array_type_pos)
2563 int _array_type_pos;
2568 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2569 _array_type_pos = iter->pos + 1;
2571 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2572 _array_type_pos = iter->array_type_pos + 1;
2574 case DBUS_MESSAGE_ITER_TYPE_DICT:
2575 /* Get the length of the string */
2576 len = _dbus_demarshal_uint32 (&iter->message->body,
2577 iter->message->byte_order,
2579 pos = pos + len + 1;
2580 data = _dbus_string_get_const_data_len (&iter->message->body,
2582 _array_type_pos = pos + 1;
2585 _dbus_assert_not_reached ("wrong iter type");
2586 return DBUS_TYPE_INVALID;
2589 if (array_type_pos != NULL)
2590 *array_type_pos = _array_type_pos;
2592 data = _dbus_string_get_const_data_len (&iter->message->body,
2593 _array_type_pos, 1);
2594 if (_dbus_type_is_valid (*data))
2597 return DBUS_TYPE_INVALID;
2602 * Returns the element type of the array that the
2603 * message iterator points at. Note that you need
2604 * to check that the iterator points to an array
2605 * prior to using this function.
2607 * @param iter the message iter
2608 * @returns the field type
2611 dbus_message_iter_get_array_type (DBusMessageIter *iter)
2613 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2616 _dbus_return_val_if_fail (dbus_message_iter_check (real), DBUS_TYPE_INVALID);
2618 if (real->pos >= real->end)
2619 return DBUS_TYPE_INVALID;
2621 pos = dbus_message_iter_get_data_start (real, &type);
2623 _dbus_assert (type == DBUS_TYPE_ARRAY);
2625 return iter_get_array_type (real, NULL);
2630 * Returns the string value that an iterator may point to.
2631 * Note that you need to check that the iterator points to
2632 * a string value before using this function.
2634 * @see dbus_message_iter_get_arg_type
2635 * @param iter the message iter
2636 * @returns the string
2639 dbus_message_iter_get_string (DBusMessageIter *iter)
2641 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2644 _dbus_return_val_if_fail (dbus_message_iter_check (real), NULL);
2646 pos = dbus_message_iter_get_data_start (real, &type);
2648 _dbus_assert (type == DBUS_TYPE_STRING);
2650 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2656 * @todo FIXME to finish this _dbus_demarshal_object_path() needs
2657 * to not explode the path.
2659 * Returns the object path value that an iterator may point to.
2660 * Note that you need to check that the iterator points to
2661 * an object path value before using this function.
2663 * @see dbus_message_iter_get_arg_type
2664 * @param iter the message iter
2668 dbus_message_iter_get_object_path (DBusMessageIter *iter)
2670 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2673 _dbus_return_val_if_fail (dbus_message_iter_check (real), NULL);
2675 pos = dbus_message_iter_get_data_start (real, &type);
2677 _dbus_assert (type == DBUS_TYPE_OBJECT_PATH);
2679 return _dbus_demarshal_object_path (&real->message->body, real->message->byte_order,
2685 * Returns the name and data from a named type that an
2686 * iterator may point to. Note that you need to check that
2687 * the iterator points to a named type before using this
2690 * @see dbus_message_iter_get_arg_type
2691 * @param iter the message iter
2692 * @param name return location for the name
2693 * @param value return location for data
2694 * @param len return location for length of data
2695 * @returns TRUE if get succeed
2699 dbus_message_iter_get_named (DBusMessageIter *iter,
2701 unsigned char **value,
2704 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2708 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2710 pos = dbus_message_iter_get_data_start (real, &type);
2712 _dbus_assert (type == DBUS_TYPE_NAMED);
2714 _name = _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2720 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2721 pos, NULL, value, len))
2733 * Returns the byte value that an iterator may point to.
2734 * Note that you need to check that the iterator points to
2735 * a byte value before using this function.
2737 * @see dbus_message_iter_get_arg_type
2738 * @param iter the message iter
2739 * @returns the byte value
2742 dbus_message_iter_get_byte (DBusMessageIter *iter)
2744 unsigned char value;
2745 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2748 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2750 pos = dbus_message_iter_get_data_start (real, &type);
2752 _dbus_assert (type == DBUS_TYPE_BYTE);
2754 value = _dbus_string_get_byte (&real->message->body, pos);
2761 * Returns the boolean value that an iterator may point to.
2762 * Note that you need to check that the iterator points to
2763 * a boolean value before using this function.
2765 * @see dbus_message_iter_get_arg_type
2766 * @param iter the message iter
2767 * @returns the boolean value
2770 dbus_message_iter_get_boolean (DBusMessageIter *iter)
2772 unsigned char value;
2773 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2776 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2778 pos = dbus_message_iter_get_data_start (real, &type);
2780 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2782 value = _dbus_string_get_byte (&real->message->body, pos);
2788 * Returns the 32 bit signed integer value that an iterator may point to.
2789 * Note that you need to check that the iterator points to
2790 * a 32-bit integer value before using this function.
2792 * @see dbus_message_iter_get_arg_type
2793 * @param iter the message iter
2794 * @returns the integer
2797 dbus_message_iter_get_int32 (DBusMessageIter *iter)
2799 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2802 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2804 pos = dbus_message_iter_get_data_start (real, &type);
2806 _dbus_assert (type == DBUS_TYPE_INT32);
2808 return _dbus_demarshal_int32 (&real->message->body, real->message->byte_order,
2813 * Returns the 32 bit unsigned integer value that an iterator may point to.
2814 * Note that you need to check that the iterator points to
2815 * a 32-bit unsigned integer value before using this function.
2817 * @see dbus_message_iter_get_arg_type
2818 * @param iter the message iter
2819 * @returns the integer
2822 dbus_message_iter_get_uint32 (DBusMessageIter *iter)
2824 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2827 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2829 pos = dbus_message_iter_get_data_start (real, &type);
2831 _dbus_assert (type == DBUS_TYPE_UINT32);
2833 return _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2837 #ifdef DBUS_HAVE_INT64
2840 * Returns the 64 bit signed integer value that an iterator may point
2841 * to. Note that you need to check that the iterator points to a
2842 * 64-bit integer value before using this function.
2844 * This function only exists if #DBUS_HAVE_INT64 is defined.
2846 * @see dbus_message_iter_get_arg_type
2847 * @param iter the message iter
2848 * @returns the integer
2851 dbus_message_iter_get_int64 (DBusMessageIter *iter)
2853 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2856 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2858 pos = dbus_message_iter_get_data_start (real, &type);
2860 _dbus_assert (type == DBUS_TYPE_INT64);
2862 return _dbus_demarshal_int64 (&real->message->body, real->message->byte_order,
2867 * Returns the 64 bit unsigned integer value that an iterator may point to.
2868 * Note that you need to check that the iterator points to
2869 * a 64-bit unsigned integer value before using this function.
2871 * This function only exists if #DBUS_HAVE_INT64 is defined.
2873 * @see dbus_message_iter_get_arg_type
2874 * @param iter the message iter
2875 * @returns the integer
2878 dbus_message_iter_get_uint64 (DBusMessageIter *iter)
2880 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2883 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2885 pos = dbus_message_iter_get_data_start (real, &type);
2887 _dbus_assert (type == DBUS_TYPE_UINT64);
2889 return _dbus_demarshal_uint64 (&real->message->body, real->message->byte_order,
2893 #endif /* DBUS_HAVE_INT64 */
2896 * Returns the double value that an iterator may point to.
2897 * Note that you need to check that the iterator points to
2898 * a string value before using this function.
2900 * @see dbus_message_iter_get_arg_type
2901 * @param iter the message iter
2902 * @returns the double
2905 dbus_message_iter_get_double (DBusMessageIter *iter)
2907 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2910 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0.0);
2912 pos = dbus_message_iter_get_data_start (real, &type);
2914 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2916 return _dbus_demarshal_double (&real->message->body, real->message->byte_order,
2921 * Initializes an iterator for the array that the iterator
2922 * may point to. Note that you need to check that the iterator
2923 * points to an array prior to using this function.
2925 * The array element type is returned in array_type, and the array
2926 * iterator can only be used to get that type of data.
2928 * @param iter the iterator
2929 * @param array_iter pointer to an iterator to initialize
2930 * @param array_type gets set to the type of the array elements
2933 dbus_message_iter_init_array_iterator (DBusMessageIter *iter,
2934 DBusMessageIter *array_iter,
2937 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2938 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2939 int type, pos, len_pos, len, array_type_pos;
2942 _dbus_return_if_fail (dbus_message_iter_check (real));
2944 pos = dbus_message_iter_get_data_start (real, &type);
2946 _dbus_assert (type == DBUS_TYPE_ARRAY);
2948 _array_type = iter_get_array_type (real, &array_type_pos);
2950 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2951 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2954 array_real->parent_iter = real;
2955 array_real->message = real->message;
2956 array_real->changed_stamp = real->message->changed_stamp;
2958 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2959 array_real->pos = pos;
2960 array_real->end = pos + len;
2962 array_real->container_start = pos;
2963 array_real->container_length_pos = len_pos;
2964 array_real->wrote_dict_key = 0;
2965 array_real->array_type_pos = array_type_pos;
2966 array_real->array_type_done = TRUE;
2968 if (array_type != NULL)
2969 *array_type = _array_type;
2974 * Initializes an iterator for the dict that the iterator
2975 * may point to. Note that you need to check that the iterator
2976 * points to a dict prior to using this function.
2978 * @param iter the iterator
2979 * @param dict_iter pointer to an iterator to initialize
2982 dbus_message_iter_init_dict_iterator (DBusMessageIter *iter,
2983 DBusMessageIter *dict_iter)
2985 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2986 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
2987 int type, pos, len_pos, len;
2989 _dbus_return_if_fail (dbus_message_iter_check (real));
2991 pos = dbus_message_iter_get_data_start (real, &type);
2993 _dbus_assert (type == DBUS_TYPE_DICT);
2995 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2996 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2999 dict_real->parent_iter = real;
3000 dict_real->message = real->message;
3001 dict_real->changed_stamp = real->message->changed_stamp;
3003 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
3004 dict_real->pos = pos;
3005 dict_real->end = pos + len;
3007 dict_real->container_start = pos;
3008 dict_real->container_length_pos = len_pos;
3009 dict_real->wrote_dict_key = 0;
3013 * Returns the byte array that the iterator may point to.
3014 * Note that you need to check that the iterator points
3015 * to a byte array prior to using this function.
3017 * @param iter the iterator
3018 * @param value return location for array values
3019 * @param len return location for length of byte array
3020 * @returns #TRUE on success
3023 dbus_message_iter_get_byte_array (DBusMessageIter *iter,
3024 unsigned char **value,
3027 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3030 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3032 pos = dbus_message_iter_get_data_start (real, &type);
3034 _dbus_assert (type == DBUS_TYPE_ARRAY);
3036 type = iter_get_array_type (real, NULL);
3038 _dbus_assert (type == DBUS_TYPE_BYTE);
3040 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
3041 pos, NULL, value, len))
3048 * Returns the boolean array that the iterator may point to. Note that
3049 * you need to check that the iterator points to an array of the
3050 * correct type prior to using this function.
3052 * @param iter the iterator
3053 * @param value return location for the array
3054 * @param len return location for the array length
3055 * @returns #TRUE on success
3058 dbus_message_iter_get_boolean_array (DBusMessageIter *iter,
3059 unsigned char **value,
3062 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3065 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3067 pos = dbus_message_iter_get_data_start (real, &type);
3069 _dbus_assert (type == DBUS_TYPE_ARRAY);
3071 type = iter_get_array_type (real, NULL);
3073 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
3075 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
3076 pos, NULL, value, len))
3083 * Returns the 32 bit signed integer array that the iterator may point
3084 * to. Note that you need to check that the iterator points to an
3085 * array of the correct type prior to using this function.
3087 * @param iter the iterator
3088 * @param value return location for the array
3089 * @param len return location for the array length
3090 * @returns #TRUE on success
3093 dbus_message_iter_get_int32_array (DBusMessageIter *iter,
3094 dbus_int32_t **value,
3097 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3100 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3102 pos = dbus_message_iter_get_data_start (real, &type);
3104 _dbus_assert (type == DBUS_TYPE_ARRAY);
3106 type = iter_get_array_type (real, NULL);
3108 _dbus_assert (type == DBUS_TYPE_INT32);
3110 if (!_dbus_demarshal_int32_array (&real->message->body, real->message->byte_order,
3111 pos, NULL, value, len))
3118 * Returns the 32 bit unsigned integer array that the iterator may point
3119 * to. Note that you need to check that the iterator points to an
3120 * array of the correct type prior to using this function.
3122 * @param iter the iterator
3123 * @param value return location for the array
3124 * @param len return location for the array length
3125 * @returns #TRUE on success
3128 dbus_message_iter_get_uint32_array (DBusMessageIter *iter,
3129 dbus_uint32_t **value,
3132 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3135 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3137 pos = dbus_message_iter_get_data_start (real, &type);
3139 _dbus_assert (type == DBUS_TYPE_ARRAY);
3141 type = iter_get_array_type (real, NULL);
3142 _dbus_assert (type == DBUS_TYPE_UINT32);
3144 if (!_dbus_demarshal_uint32_array (&real->message->body, real->message->byte_order,
3145 pos, NULL, value, len))
3151 #ifdef DBUS_HAVE_INT64
3154 * Returns the 64 bit signed integer array that the iterator may point
3155 * to. Note that you need to check that the iterator points to an
3156 * array of the correct type prior to using this function.
3158 * This function only exists if #DBUS_HAVE_INT64 is defined.
3160 * @param iter the iterator
3161 * @param value return location for the array
3162 * @param len return location for the array length
3163 * @returns #TRUE on success
3166 dbus_message_iter_get_int64_array (DBusMessageIter *iter,
3167 dbus_int64_t **value,
3170 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3173 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3175 pos = dbus_message_iter_get_data_start (real, &type);
3177 _dbus_assert (type == DBUS_TYPE_ARRAY);
3179 type = iter_get_array_type (real, NULL);
3181 _dbus_assert (type == DBUS_TYPE_INT64);
3183 if (!_dbus_demarshal_int64_array (&real->message->body, real->message->byte_order,
3184 pos, NULL, value, len))
3191 * Returns the 64 bit unsigned integer array that the iterator may point
3192 * to. Note that you need to check that the iterator points to an
3193 * array of the correct type prior to using this function.
3195 * This function only exists if #DBUS_HAVE_INT64 is defined.
3197 * @param iter the iterator
3198 * @param value return location for the array
3199 * @param len return location for the array length
3200 * @returns #TRUE on success
3203 dbus_message_iter_get_uint64_array (DBusMessageIter *iter,
3204 dbus_uint64_t **value,
3207 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3210 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3212 pos = dbus_message_iter_get_data_start (real, &type);
3214 _dbus_assert (type == DBUS_TYPE_ARRAY);
3216 type = iter_get_array_type (real, NULL);
3217 _dbus_assert (type == DBUS_TYPE_UINT64);
3219 if (!_dbus_demarshal_uint64_array (&real->message->body, real->message->byte_order,
3220 pos, NULL, value, len))
3226 #endif /* DBUS_HAVE_INT64 */
3229 * Returns the double array that the iterator may point to. Note that
3230 * you need to check that the iterator points to an array of the
3231 * correct type prior to using this function.
3233 * @param iter the iterator
3234 * @param value return location for the array
3235 * @param len return location for the array length
3236 * @returns #TRUE on success
3239 dbus_message_iter_get_double_array (DBusMessageIter *iter,
3243 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3246 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3248 pos = dbus_message_iter_get_data_start (real, &type);
3250 _dbus_assert (type == DBUS_TYPE_ARRAY);
3252 type = iter_get_array_type (real, NULL);
3253 _dbus_assert (type == DBUS_TYPE_DOUBLE);
3255 if (!_dbus_demarshal_double_array (&real->message->body, real->message->byte_order,
3256 pos, NULL, value, len))
3263 * Returns the string array that the iterator may point to.
3264 * Note that you need to check that the iterator points
3265 * to a string array prior to using this function.
3267 * The returned value is a #NULL-terminated array of strings.
3268 * Each string is a separate malloc block, and the array
3269 * itself is a malloc block. You can free this type of
3270 * string array with dbus_free_string_array().
3272 * @param iter the iterator
3273 * @param value return location for string values
3274 * @param len return location for length of byte array
3275 * @returns #TRUE on success
3278 dbus_message_iter_get_string_array (DBusMessageIter *iter,
3282 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3285 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3287 pos = dbus_message_iter_get_data_start (real, &type);
3289 _dbus_assert (type == DBUS_TYPE_ARRAY);
3291 type = iter_get_array_type (real, NULL);
3292 _dbus_assert (type == DBUS_TYPE_STRING);
3294 if (!_dbus_demarshal_string_array (&real->message->body, real->message->byte_order,
3295 pos, NULL, value, len))
3303 * @todo FIXME to implement this _dbus_demarshal_object_path_array()
3304 * needs implementing
3306 * Returns the object path array that the iterator may point to.
3307 * Note that you need to check that the iterator points
3308 * to an object path array prior to using this function.
3310 * The returned value is a #NULL-terminated array of strings.
3311 * Each string is a separate malloc block, and the array
3312 * itself is a malloc block. You can free this type of
3313 * array with dbus_free_string_array().
3315 * @param iter the iterator
3316 * @param value return location for string values
3317 * @param len return location for length of byte array
3318 * @returns #TRUE on success
3321 dbus_message_iter_get_object_path_array (DBusMessageIter *iter,
3325 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3328 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3330 pos = dbus_message_iter_get_data_start (real, &type);
3332 _dbus_assert (type == DBUS_TYPE_ARRAY);
3334 type = iter_get_array_type (real, NULL);
3335 _dbus_assert (type == DBUS_TYPE_OBJECT_PATH);
3337 if (!_dbus_demarshal_object_path_array (&real->message->body, real->message->byte_order,
3338 pos, NULL, value, len))
3346 * Returns the key name fot the dict entry that an iterator
3347 * may point to. Note that you need to check that the iterator
3348 * points to a dict entry before using this function.
3350 * @see dbus_message_iter_init_dict_iterator
3351 * @param iter the message iter
3352 * @returns the key name
3355 dbus_message_iter_get_dict_key (DBusMessageIter *iter)
3357 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3359 _dbus_return_val_if_fail (dbus_message_iter_check (real), NULL);
3361 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
3363 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
3368 * Initializes a DBusMessageIter pointing to the end of the
3369 * message. This iterator can be used to append data to the
3372 * @param message the message
3373 * @param iter pointer to an iterator to initialize
3376 dbus_message_append_iter_init (DBusMessage *message,
3377 DBusMessageIter *iter)
3379 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3381 _dbus_return_if_fail (message != NULL);
3382 _dbus_return_if_fail (iter != NULL);
3384 real->message = message;
3385 real->parent_iter = NULL;
3386 real->changed_stamp = message->changed_stamp;
3388 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
3389 real->end = _dbus_string_get_length (&real->message->body);
3390 real->pos = real->end;
3392 real->container_length_pos = 0;
3393 real->wrote_dict_key = 0;
3396 #ifndef DBUS_DISABLE_CHECKS
3398 dbus_message_iter_append_check (DBusMessageRealIter *iter)
3402 _dbus_warn ("dbus iterator check failed: NULL iterator\n");
3406 if (iter->message->locked)
3408 _dbus_warn ("dbus iterator check failed: message is locked (has already been sent)\n");
3412 if (iter->changed_stamp != iter->message->changed_stamp)
3414 _dbus_warn ("dbus iterator check failed: invalid iterator, must re-initialize it after modifying the message");
3418 if (iter->pos != iter->end)
3420 _dbus_warn ("dbus iterator check failed: can only append at end of message");
3424 if (iter->pos != _dbus_string_get_length (&iter->message->body))
3426 _dbus_warn ("dbus iterator check failed: append pos not at end of message string");
3432 #endif /* DBUS_DISABLE_CHECKS */
3435 dbus_message_iter_append_type (DBusMessageRealIter *iter,
3441 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
3442 if (!_dbus_string_append_byte (&iter->message->signature, type))
3445 if (!_dbus_string_append_byte (&iter->message->body, type))
3447 _dbus_string_shorten (&iter->message->signature, 1);
3452 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
3453 data = _dbus_string_get_const_data_len (&iter->message->body,
3454 iter->array_type_pos, 1);
3457 _dbus_warn ("Appended element of wrong type for array\n");
3462 case DBUS_MESSAGE_ITER_TYPE_DICT:
3463 if (!iter->wrote_dict_key)
3465 _dbus_warn ("Appending dict data before key name\n");
3469 if (!_dbus_string_append_byte (&iter->message->body, type))
3475 _dbus_assert_not_reached ("Invalid iter type");
3483 dbus_message_iter_update_after_change (DBusMessageRealIter *iter)
3485 iter->changed_stamp = iter->message->changed_stamp;
3487 /* Set new end of iter */
3488 iter->end = _dbus_string_get_length (&iter->message->body);
3489 iter->pos = iter->end;
3491 /* Set container length */
3492 if (iter->type == DBUS_MESSAGE_ITER_TYPE_DICT ||
3493 (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY && iter->array_type_done))
3494 _dbus_marshal_set_uint32 (&iter->message->body,
3495 iter->message->byte_order,
3496 iter->container_length_pos,
3497 iter->end - iter->container_start);
3499 if (iter->parent_iter)
3500 dbus_message_iter_update_after_change (iter->parent_iter);
3504 dbus_message_iter_append_done (DBusMessageRealIter *iter)
3506 iter->message->changed_stamp++;
3507 dbus_message_iter_update_after_change (iter);
3508 iter->wrote_dict_key = FALSE;
3512 * Appends a nil value to the message
3514 * @param iter an iterator pointing to the end of the message
3515 * @returns #TRUE on success
3518 dbus_message_iter_append_nil (DBusMessageIter *iter)
3520 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3522 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3524 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NIL))
3527 dbus_message_iter_append_done (real);
3533 * Appends a boolean value to the message
3535 * @param iter an iterator pointing to the end of the message
3536 * @param value the boolean value
3537 * @returns #TRUE on success
3540 dbus_message_iter_append_boolean (DBusMessageIter *iter,
3543 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3545 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3547 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BOOLEAN))
3550 if (!_dbus_string_append_byte (&real->message->body, (value != FALSE)))
3552 _dbus_string_set_length (&real->message->body, real->pos);
3556 dbus_message_iter_append_done (real);
3562 * Appends a byte to the message
3564 * @param iter an iterator pointing to the end of the message
3565 * @param value the byte value
3566 * @returns #TRUE on success
3569 dbus_message_iter_append_byte (DBusMessageIter *iter,
3570 unsigned char value)
3572 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3574 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3576 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BYTE))
3579 if (!_dbus_string_append_byte (&real->message->body, value))
3581 _dbus_string_set_length (&real->message->body, real->pos);
3585 dbus_message_iter_append_done (real);
3592 * Appends a 32 bit signed integer to the message.
3594 * @param iter an iterator pointing to the end of the message
3595 * @param value the integer value
3596 * @returns #TRUE on success
3599 dbus_message_iter_append_int32 (DBusMessageIter *iter,
3602 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3604 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3606 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT32))
3609 if (!_dbus_marshal_int32 (&real->message->body, real->message->byte_order, value))
3611 _dbus_string_set_length (&real->message->body, real->pos);
3615 dbus_message_iter_append_done (real);
3621 * Appends a 32 bit unsigned integer to the message.
3623 * @param iter an iterator pointing to the end of the message
3624 * @param value the integer value
3625 * @returns #TRUE on success
3628 dbus_message_iter_append_uint32 (DBusMessageIter *iter,
3629 dbus_uint32_t value)
3631 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3633 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3635 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT32))
3638 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, value))
3640 _dbus_string_set_length (&real->message->body, real->pos);
3644 dbus_message_iter_append_done (real);
3649 #ifdef DBUS_HAVE_INT64
3652 * Appends a 64 bit signed integer to the message.
3654 * This function only exists if #DBUS_HAVE_INT64 is defined.
3656 * @param iter an iterator pointing to the end of the message
3657 * @param value the integer value
3658 * @returns #TRUE on success
3661 dbus_message_iter_append_int64 (DBusMessageIter *iter,
3664 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3666 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3668 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT64))
3671 if (!_dbus_marshal_int64 (&real->message->body, real->message->byte_order, value))
3673 _dbus_string_set_length (&real->message->body, real->pos);
3677 dbus_message_iter_append_done (real);
3683 * Appends a 64 bit unsigned integer to the message.
3685 * This function only exists if #DBUS_HAVE_INT64 is defined.
3687 * @param iter an iterator pointing to the end of the message
3688 * @param value the integer value
3689 * @returns #TRUE on success
3692 dbus_message_iter_append_uint64 (DBusMessageIter *iter,
3693 dbus_uint64_t value)
3695 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3697 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3699 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT64))
3702 if (!_dbus_marshal_uint64 (&real->message->body, real->message->byte_order, value))
3704 _dbus_string_set_length (&real->message->body, real->pos);
3708 dbus_message_iter_append_done (real);
3713 #endif /* DBUS_HAVE_INT64 */
3716 * Appends a double value to the message.
3718 * @param iter an iterator pointing to the end of the message
3719 * @param value the double value
3720 * @returns #TRUE on success
3723 dbus_message_iter_append_double (DBusMessageIter *iter,
3726 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3728 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3730 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DOUBLE))
3733 if (!_dbus_marshal_double (&real->message->body, real->message->byte_order, value))
3735 _dbus_string_set_length (&real->message->body, real->pos);
3739 dbus_message_iter_append_done (real);
3745 * Appends a UTF-8 string to the message.
3747 * @todo add return_val_if_fail(UTF-8 is valid)
3749 * @param iter an iterator pointing to the end of the message
3750 * @param value the string
3751 * @returns #TRUE on success
3754 dbus_message_iter_append_string (DBusMessageIter *iter,
3757 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3759 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3761 if (!dbus_message_iter_append_type (real, DBUS_TYPE_STRING))
3764 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
3766 _dbus_string_set_length (&real->message->body, real->pos);
3770 dbus_message_iter_append_done (real);
3776 * Appends a named type data chunk to the message. A named
3777 * type is simply an arbitrary UTF-8 string used as a type
3778 * tag, plus an array of arbitrary bytes to be interpreted
3779 * according to the type tag.
3781 * @param iter an iterator pointing to the end of the message
3782 * @param name the name of the type
3783 * @param data the binary data used to store the value
3784 * @param len the length of the binary data in bytes
3785 * @returns #TRUE on success
3788 dbus_message_iter_append_named (DBusMessageIter *iter,
3790 const unsigned char *data,
3793 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3795 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3797 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NAMED))
3800 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, name))
3802 _dbus_string_set_length (&real->message->body, real->pos);
3806 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, data, len))
3808 _dbus_string_set_length (&real->message->body, real->pos);
3812 dbus_message_iter_append_done (real);
3819 * Appends a dict key name to the message. The iterator used
3820 * must point to a dict.
3822 * @param iter an iterator pointing to the end of the message
3823 * @param value the string
3824 * @returns #TRUE on success
3827 dbus_message_iter_append_dict_key (DBusMessageIter *iter,
3830 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3832 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3833 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
3835 if (real->wrote_dict_key)
3837 _dbus_warn ("Appendinging multiple dict key names\n");
3841 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
3846 dbus_message_iter_append_done (real);
3847 real->wrote_dict_key = TRUE;
3853 array_iter_type_mark_done (DBusMessageRealIter *iter)
3857 if (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY)
3858 array_iter_type_mark_done (iter->parent_iter);
3862 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&iter->message->body),
3863 sizeof (dbus_uint32_t));
3865 /* Empty length for now, backfill later */
3866 if (!_dbus_marshal_uint32 (&iter->message->body, iter->message->byte_order, 0))
3868 _dbus_string_set_length (&iter->message->body, iter->pos);
3872 iter->container_start = _dbus_string_get_length (&iter->message->body);
3873 iter->container_length_pos = len_pos;
3874 iter->array_type_done = TRUE;
3880 append_array_type (DBusMessageRealIter *real,
3882 dbus_bool_t *array_type_done,
3883 int *array_type_pos)
3885 int existing_element_type;
3887 if (!dbus_message_iter_append_type (real, DBUS_TYPE_ARRAY))
3890 if (real->type == DBUS_MESSAGE_ITER_TYPE_ARRAY &&
3891 real->array_type_done)
3893 existing_element_type = iter_get_array_type (real, array_type_pos);
3894 if (existing_element_type != element_type)
3896 _dbus_warn ("Appending array of %s, when expecting array of %s\n",
3897 _dbus_type_to_string (element_type),
3898 _dbus_type_to_string (existing_element_type));
3899 _dbus_string_set_length (&real->message->body, real->pos);
3902 if (array_type_done != NULL)
3903 *array_type_done = TRUE;
3907 if (array_type_pos != NULL)
3908 *array_type_pos = _dbus_string_get_length (&real->message->body);
3911 if (!_dbus_string_append_byte (&real->message->signature, element_type))
3913 _dbus_string_set_length (&real->message->body, real->pos);
3917 /* Append element type */
3918 if (!_dbus_string_append_byte (&real->message->body, element_type))
3920 _dbus_string_shorten (&real->message->signature, 1);
3921 _dbus_string_set_length (&real->message->body, real->pos);
3925 if (array_type_done != NULL)
3926 *array_type_done = element_type != DBUS_TYPE_ARRAY;
3928 if (element_type != DBUS_TYPE_ARRAY &&
3929 !array_iter_type_mark_done (real))
3931 _dbus_string_shorten (&real->message->signature, 1);
3940 * Appends an array to the message and initializes an iterator that
3941 * can be used to append to the array.
3943 * @param iter an iterator pointing to the end of the message
3944 * @param array_iter pointer to an iter that will be initialized
3945 * @param element_type the type of the array elements
3946 * @returns #TRUE on success
3949 dbus_message_iter_append_array (DBusMessageIter *iter,
3950 DBusMessageIter *array_iter,
3953 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3954 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
3957 dbus_bool_t array_type_done;
3959 if (element_type == DBUS_TYPE_NIL)
3961 _dbus_warn ("Can't create NIL arrays\n");
3965 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3967 if (!append_array_type (real, element_type, &array_type_done, &array_type_pos))
3970 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
3972 if (array_type_done)
3974 /* Empty length for now, backfill later */
3975 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
3977 _dbus_string_set_length (&real->message->body, real->pos);
3982 array_real->parent_iter = real;
3983 array_real->message = real->message;
3984 array_real->changed_stamp = real->message->changed_stamp;
3986 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
3987 array_real->pos = _dbus_string_get_length (&real->message->body);
3988 array_real->end = array_real->end;
3990 array_real->container_start = array_real->pos;
3991 array_real->container_length_pos = len_pos;
3992 array_real->wrote_dict_key = 0;
3993 array_real->array_type_done = array_type_done;
3994 array_real->array_type_pos = array_type_pos;
3996 dbus_message_iter_append_done (array_real);
4002 * Appends a dict to the message and initializes an iterator that
4003 * can be used to append to the dict.
4005 * @param iter an iterator pointing to the end of the message
4006 * @param dict_iter pointer to an iter that will be initialized
4007 * @returns #TRUE on success
4010 dbus_message_iter_append_dict (DBusMessageIter *iter,
4011 DBusMessageIter *dict_iter)
4013 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4014 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
4017 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4019 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DICT))
4022 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
4024 /* Empty length for now, backfill later */
4025 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
4027 _dbus_string_set_length (&real->message->body, real->pos);
4031 dict_real->parent_iter = real;
4032 dict_real->message = real->message;
4033 dict_real->changed_stamp = real->message->changed_stamp;
4035 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
4036 dict_real->pos = _dbus_string_get_length (&real->message->body);
4037 dict_real->end = dict_real->end;
4039 dict_real->container_start = dict_real->pos;
4040 dict_real->container_length_pos = len_pos;
4041 dict_real->wrote_dict_key = 0;
4043 dbus_message_iter_append_done (dict_real);
4050 * Appends a boolean array to the message.
4052 * @param iter an iterator pointing to the end of the message
4053 * @param value the array
4054 * @param len the length of the array
4055 * @returns #TRUE on success
4058 dbus_message_iter_append_boolean_array (DBusMessageIter *iter,
4059 unsigned const char *value,
4062 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4064 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4066 if (!append_array_type (real, DBUS_TYPE_BOOLEAN, NULL, NULL))
4069 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
4071 _dbus_string_set_length (&real->message->body, real->pos);
4075 dbus_message_iter_append_done (real);
4081 * Appends a 32 bit signed integer array to the message.
4083 * @param iter an iterator pointing to the end of the message
4084 * @param value the array
4085 * @param len the length of the array
4086 * @returns #TRUE on success
4089 dbus_message_iter_append_int32_array (DBusMessageIter *iter,
4090 const dbus_int32_t *value,
4093 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4095 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4097 if (!append_array_type (real, DBUS_TYPE_INT32, NULL, NULL))
4100 if (!_dbus_marshal_int32_array (&real->message->body, real->message->byte_order, value, len))
4102 _dbus_string_set_length (&real->message->body, real->pos);
4106 dbus_message_iter_append_done (real);
4112 * Appends a 32 bit unsigned integer array to the message.
4114 * @param iter an iterator pointing to the end of the message
4115 * @param value the array
4116 * @param len the length of the array
4117 * @returns #TRUE on success
4120 dbus_message_iter_append_uint32_array (DBusMessageIter *iter,
4121 const dbus_uint32_t *value,
4124 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4126 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4128 if (!append_array_type (real, DBUS_TYPE_UINT32, NULL, NULL))
4131 if (!_dbus_marshal_uint32_array (&real->message->body, real->message->byte_order, value, len))
4133 _dbus_string_set_length (&real->message->body, real->pos);
4137 dbus_message_iter_append_done (real);
4142 #ifdef DBUS_HAVE_INT64
4145 * Appends a 64 bit signed integer array to the message.
4147 * This function only exists if #DBUS_HAVE_INT64 is defined.
4149 * @param iter an iterator pointing to the end of the message
4150 * @param value the array
4151 * @param len the length of the array
4152 * @returns #TRUE on success
4155 dbus_message_iter_append_int64_array (DBusMessageIter *iter,
4156 const dbus_int64_t *value,
4159 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4161 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4163 if (!append_array_type (real, DBUS_TYPE_INT64, NULL, NULL))
4166 if (!_dbus_marshal_int64_array (&real->message->body, real->message->byte_order, value, len))
4168 _dbus_string_set_length (&real->message->body, real->pos);
4172 dbus_message_iter_append_done (real);
4178 * Appends a 64 bit unsigned integer array to the message.
4180 * This function only exists if #DBUS_HAVE_INT64 is defined.
4182 * @param iter an iterator pointing to the end of the message
4183 * @param value the array
4184 * @param len the length of the array
4185 * @returns #TRUE on success
4188 dbus_message_iter_append_uint64_array (DBusMessageIter *iter,
4189 const dbus_uint64_t *value,
4192 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4194 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4196 if (!append_array_type (real, DBUS_TYPE_UINT64, NULL, NULL))
4199 if (!_dbus_marshal_uint64_array (&real->message->body, real->message->byte_order, value, len))
4201 _dbus_string_set_length (&real->message->body, real->pos);
4205 dbus_message_iter_append_done (real);
4209 #endif /* DBUS_HAVE_INT64 */
4212 * Appends a double array to the message.
4214 * @param iter an iterator pointing to the end of the message
4215 * @param value the array
4216 * @param len the length of the array
4217 * @returns #TRUE on success
4220 dbus_message_iter_append_double_array (DBusMessageIter *iter,
4221 const double *value,
4224 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4226 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4228 if (!append_array_type (real, DBUS_TYPE_DOUBLE, NULL, NULL))
4231 if (!_dbus_marshal_double_array (&real->message->body, real->message->byte_order, value, len))
4233 _dbus_string_set_length (&real->message->body, real->pos);
4237 dbus_message_iter_append_done (real);
4243 * Appends a byte array to the message.
4245 * @param iter an iterator pointing to the end of the message
4246 * @param value the array
4247 * @param len the length of the array
4248 * @returns #TRUE on success
4251 dbus_message_iter_append_byte_array (DBusMessageIter *iter,
4252 unsigned const char *value,
4255 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4257 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4259 if (!append_array_type (real, DBUS_TYPE_BYTE, NULL, NULL))
4262 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
4264 _dbus_string_set_length (&real->message->body, real->pos);
4268 dbus_message_iter_append_done (real);
4274 * Appends a string array to the message.
4276 * @param iter an iterator pointing to the end of the message
4277 * @param value the array
4278 * @param len the length of the array
4279 * @returns #TRUE on success
4282 dbus_message_iter_append_string_array (DBusMessageIter *iter,
4286 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4288 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4290 if (!append_array_type (real, DBUS_TYPE_STRING, NULL, NULL))
4293 if (!_dbus_marshal_string_array (&real->message->body, real->message->byte_order, value, len))
4295 _dbus_string_set_length (&real->message->body, real->pos);
4299 dbus_message_iter_append_done (real);
4305 * Sets the message sender.
4307 * @param message the message
4308 * @param sender the sender
4309 * @returns #FALSE if not enough memory
4312 dbus_message_set_sender (DBusMessage *message,
4315 _dbus_return_val_if_fail (message != NULL, FALSE);
4316 _dbus_return_val_if_fail (!message->locked, FALSE);
4320 delete_field (message, DBUS_HEADER_FIELD_SENDER_SERVICE);
4325 return set_string_field (message,
4326 DBUS_HEADER_FIELD_SENDER_SERVICE,
4333 * Sets a flag indicating that the message does not want a reply; if
4334 * this flag is set, the other end of the connection may (but is not
4335 * required to) optimize by not sending method return or error
4336 * replies. If this flag is set, there is no way to know whether the
4337 * message successfully arrived at the remote end.
4339 * @param message the message
4340 * @param no_reply #TRUE if no reply is desired
4343 dbus_message_set_no_reply (DBusMessage *message,
4344 dbus_bool_t no_reply)
4348 _dbus_return_if_fail (message != NULL);
4349 _dbus_return_if_fail (!message->locked);
4351 header = _dbus_string_get_data_len (&message->header, FLAGS_OFFSET, 1);
4354 *header |= DBUS_HEADER_FLAG_NO_REPLY_EXPECTED;
4356 *header &= ~DBUS_HEADER_FLAG_NO_REPLY_EXPECTED;
4360 * Returns #TRUE if the message does not expect
4363 * @param message the message
4364 * @returns #TRUE if the message sender isn't waiting for a reply
4367 dbus_message_get_no_reply (DBusMessage *message)
4371 _dbus_return_val_if_fail (message != NULL, FALSE);
4373 header = _dbus_string_get_const_data_len (&message->header, FLAGS_OFFSET, 1);
4375 return (*header & DBUS_HEADER_FLAG_NO_REPLY_EXPECTED) != 0;
4379 * Gets the service which originated this message,
4380 * or #NULL if unknown or inapplicable.
4382 * @param message the message
4383 * @returns the service name or #NULL
4386 dbus_message_get_sender (DBusMessage *message)
4388 _dbus_return_val_if_fail (message != NULL, NULL);
4390 return get_string_field (message,
4391 DBUS_HEADER_FIELD_SENDER_SERVICE,
4396 * Gets the type signature of the message, i.e. the arguments in the
4397 * message payload. The signature includes only "in" arguments for
4398 * #DBUS_MESSAGE_TYPE_METHOD_CALL and only "out" arguments for
4399 * #DBUS_MESSAGE_TYPE_METHOD_RETURN, so is slightly different from
4400 * what you might expect (it does not include the signature of the
4401 * entire C++-style method).
4403 * The signature is a string made up of type codes such
4404 * as #DBUS_TYPE_STRING. The string is terminated with nul
4405 * (nul is also the value of #DBUS_TYPE_INVALID).
4407 * @param message the message
4408 * @returns the type signature
4411 dbus_message_get_signature (DBusMessage *message)
4413 _dbus_return_val_if_fail (message != NULL, NULL);
4415 return _dbus_string_get_const_data (&message->signature);
4419 _dbus_message_has_type_interface_member (DBusMessage *message,
4421 const char *interface,
4426 _dbus_assert (message != NULL);
4427 _dbus_assert (interface != NULL);
4428 _dbus_assert (method != NULL);
4430 if (dbus_message_get_type (message) != type)
4433 /* Optimize by checking the short method name first
4434 * instead of the longer interface name
4437 n = dbus_message_get_member (message);
4439 if (n && strcmp (n, method) == 0)
4441 n = dbus_message_get_interface (message);
4443 if (n && strcmp (n, interface) == 0)
4451 * Checks whether the message is a method call with the given
4452 * interface and member fields. If the message is not
4453 * #DBUS_MESSAGE_TYPE_METHOD_CALL, or has a different interface or member field,
4456 * @param message the message
4457 * @param interface the name to check (must not be #NULL)
4458 * @param method the name to check (must not be #NULL)
4460 * @returns #TRUE if the message is the specified method call
4463 dbus_message_is_method_call (DBusMessage *message,
4464 const char *interface,
4467 _dbus_return_val_if_fail (message != NULL, FALSE);
4468 _dbus_return_val_if_fail (interface != NULL, FALSE);
4469 _dbus_return_val_if_fail (method != NULL, FALSE);
4471 return _dbus_message_has_type_interface_member (message,
4472 DBUS_MESSAGE_TYPE_METHOD_CALL,
4477 * Checks whether the message is a signal with the given
4478 * interface and member fields. If the message is not
4479 * #DBUS_MESSAGE_TYPE_SIGNAL, or has a different interface or member field,
4482 * @param message the message
4483 * @param interface the name to check (must not be #NULL)
4484 * @param signal_name the name to check (must not be #NULL)
4486 * @returns #TRUE if the message is the specified signal
4489 dbus_message_is_signal (DBusMessage *message,
4490 const char *interface,
4491 const char *signal_name)
4493 _dbus_return_val_if_fail (message != NULL, FALSE);
4494 _dbus_return_val_if_fail (interface != NULL, FALSE);
4495 _dbus_return_val_if_fail (signal_name != NULL, FALSE);
4497 return _dbus_message_has_type_interface_member (message,
4498 DBUS_MESSAGE_TYPE_SIGNAL,
4499 interface, signal_name);
4503 * Checks whether the message is an error reply with the given error
4504 * name. If the message is not #DBUS_MESSAGE_TYPE_ERROR, or has a
4505 * different name, returns #FALSE.
4507 * @param message the message
4508 * @param error_name the name to check (must not be #NULL)
4510 * @returns #TRUE if the message is the specified error
4513 dbus_message_is_error (DBusMessage *message,
4514 const char *error_name)
4518 _dbus_return_val_if_fail (message != NULL, FALSE);
4519 _dbus_return_val_if_fail (error_name != NULL, FALSE);
4521 if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_ERROR)
4524 n = dbus_message_get_error_name (message);
4526 if (n && strcmp (n, error_name) == 0)
4533 * Checks whether the message was sent to the given service. If the
4534 * message has no service specified or has a different name, returns
4537 * @param message the message
4538 * @param service the service to check (must not be #NULL)
4540 * @returns #TRUE if the message has the given destination service
4543 dbus_message_has_destination (DBusMessage *message,
4544 const char *service)
4548 _dbus_return_val_if_fail (message != NULL, FALSE);
4549 _dbus_return_val_if_fail (service != NULL, FALSE);
4551 s = dbus_message_get_destination (message);
4553 if (s && strcmp (s, service) == 0)
4560 * Checks whether the message has the given service as its sender. If
4561 * the message has no sender specified or has a different sender,
4562 * returns #FALSE. Note that if a peer application owns multiple
4563 * services, its messages will have only one of those services as the
4564 * sender (usually the base service). So you can't use this
4565 * function to prove the sender didn't own service Foo, you can
4566 * only use it to prove that it did.
4568 * @param message the message
4569 * @param service the service to check (must not be #NULL)
4571 * @returns #TRUE if the message has the given origin service
4574 dbus_message_has_sender (DBusMessage *message,
4575 const char *service)
4579 _dbus_return_val_if_fail (message != NULL, FALSE);
4580 _dbus_return_val_if_fail (service != NULL, FALSE);
4582 s = dbus_message_get_sender (message);
4584 if (s && strcmp (s, service) == 0)
4591 * Checks whether the message has the given signature;
4592 * see dbus_message_get_signature() for more details on
4593 * what the signature looks like.
4595 * @param message the message
4596 * @param signature typecode array
4597 * @returns #TRUE if message has the given signature
4600 dbus_message_has_signature (DBusMessage *message,
4601 const char *signature)
4603 _dbus_return_val_if_fail (message != NULL, FALSE);
4604 _dbus_return_val_if_fail (signature != NULL, FALSE);
4606 return _dbus_string_equal_c_str (&message->signature, signature);
4610 * Sets a #DBusError based on the contents of the given
4611 * message. The error is only set if the message
4612 * is an error message, as in DBUS_MESSAGE_TYPE_ERROR.
4613 * The name of the error is set to the name of the message,
4614 * and the error message is set to the first argument
4615 * if the argument exists and is a string.
4617 * The return value indicates whether the error was set (the error is
4618 * set if and only if the message is an error message).
4619 * So you can check for an error reply and convert it to DBusError
4622 * @param error the error to set
4623 * @param message the message to set it from
4624 * @returns #TRUE if dbus_message_get_is_error() returns #TRUE for the message
4627 dbus_set_error_from_message (DBusError *error,
4628 DBusMessage *message)
4632 _dbus_return_val_if_fail (message != NULL, FALSE);
4633 _dbus_return_val_if_error_is_set (error, FALSE);
4635 if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_ERROR)
4639 dbus_message_get_args (message, NULL,
4640 DBUS_TYPE_STRING, &str,
4643 dbus_set_error (error, dbus_message_get_error_name (message),
4644 str ? "%s" : NULL, str);
4654 * @addtogroup DBusMessageInternals
4659 * @typedef DBusMessageLoader
4661 * The DBusMessageLoader object encapsulates the process of converting
4662 * a byte stream into a series of DBusMessage. It buffers the incoming
4663 * bytes as efficiently as possible, and generates a queue of
4664 * messages. DBusMessageLoader is typically used as part of a
4665 * DBusTransport implementation. The DBusTransport then hands off
4666 * the loaded messages to a DBusConnection, making the messages
4667 * visible to the application.
4669 * @todo write tests for break-loader that a) randomly delete header
4670 * fields and b) set string fields to zero-length and other funky
4675 /* we definitely use signed ints for sizes, so don't exceed
4676 * _DBUS_INT_MAX; and add 16 for paranoia, since a message
4677 * over 128M is pretty nuts anyhow.
4681 * The maximum sane message size.
4683 #define MAX_SANE_MESSAGE_SIZE (_DBUS_INT_MAX/16)
4686 * Implementation details of DBusMessageLoader.
4687 * All members are private.
4689 struct DBusMessageLoader
4691 int refcount; /**< Reference count. */
4693 DBusString data; /**< Buffered data */
4695 DBusList *messages; /**< Complete messages. */
4697 long max_message_size; /**< Maximum size of a message */
4699 unsigned int buffer_outstanding : 1; /**< Someone is using the buffer to read */
4701 unsigned int corrupted : 1; /**< We got broken data, and are no longer working */
4705 * The initial buffer size of the message loader.
4707 * @todo this should be based on min header size plus some average
4708 * body size, or something. Or rather, the min header size only, if we
4709 * want to try to read only the header, store that in a DBusMessage,
4710 * then read only the body and store that, etc., depends on
4711 * how we optimize _dbus_message_loader_get_buffer() and what
4712 * the exact message format is.
4714 #define INITIAL_LOADER_DATA_LEN 32
4717 * Creates a new message loader. Returns #NULL if memory can't
4720 * @returns new loader, or #NULL.
4723 _dbus_message_loader_new (void)
4725 DBusMessageLoader *loader;
4727 loader = dbus_new0 (DBusMessageLoader, 1);
4731 loader->refcount = 1;
4733 /* Try to cap message size at something that won't *totally* hose
4734 * the system if we have a couple of them.
4736 loader->max_message_size = _DBUS_ONE_MEGABYTE * 32;
4738 if (!_dbus_string_init (&loader->data))
4744 /* preallocate the buffer for speed, ignore failure */
4745 _dbus_string_set_length (&loader->data, INITIAL_LOADER_DATA_LEN);
4746 _dbus_string_set_length (&loader->data, 0);
4752 * Increments the reference count of the loader.
4754 * @param loader the loader.
4757 _dbus_message_loader_ref (DBusMessageLoader *loader)
4759 loader->refcount += 1;
4763 * Decrements the reference count of the loader and finalizes the
4764 * loader when the count reaches zero.
4766 * @param loader the loader.
4769 _dbus_message_loader_unref (DBusMessageLoader *loader)
4771 loader->refcount -= 1;
4772 if (loader->refcount == 0)
4774 _dbus_list_foreach (&loader->messages,
4775 (DBusForeachFunction) dbus_message_unref,
4777 _dbus_list_clear (&loader->messages);
4778 _dbus_string_free (&loader->data);
4784 * Gets the buffer to use for reading data from the network. Network
4785 * data is read directly into an allocated buffer, which is then used
4786 * in the DBusMessage, to avoid as many extra memcpy's as possible.
4787 * The buffer must always be returned immediately using
4788 * _dbus_message_loader_return_buffer(), even if no bytes are
4789 * successfully read.
4791 * @todo this function can be a lot more clever. For example
4792 * it can probably always return a buffer size to read exactly
4793 * the body of the next message, thus avoiding any memory wastage
4796 * @todo we need to enforce a max length on strings in header fields.
4798 * @param loader the message loader.
4799 * @param buffer the buffer
4802 _dbus_message_loader_get_buffer (DBusMessageLoader *loader,
4803 DBusString **buffer)
4805 _dbus_assert (!loader->buffer_outstanding);
4807 *buffer = &loader->data;
4809 loader->buffer_outstanding = TRUE;
4813 * The smallest header size that can occur.
4814 * (It won't be valid)
4816 #define DBUS_MINIMUM_HEADER_SIZE 16
4819 decode_string_field (const DBusString *data,
4821 HeaderField *header_field,
4822 DBusString *field_data,
4826 int string_data_pos;
4828 _dbus_assert (header_field != NULL);
4829 _dbus_assert (field_data != NULL);
4831 if (header_field->name_offset >= 0)
4833 _dbus_verbose ("%s field provided twice\n",
4834 _dbus_header_field_to_string (field));
4838 if (type != DBUS_TYPE_STRING)
4840 _dbus_verbose ("%s field has wrong type %s\n",
4841 _dbus_header_field_to_string (field),
4842 _dbus_type_to_string (type));
4846 /* skip padding after typecode, skip string length;
4847 * we assume that the string arg has already been validated
4848 * for sanity and UTF-8
4850 string_data_pos = _DBUS_ALIGN_VALUE (pos, 4) + 4;
4851 _dbus_assert (string_data_pos < _dbus_string_get_length (data));
4853 _dbus_string_init_const (field_data,
4854 _dbus_string_get_const_data (data) + string_data_pos);
4856 header_field->name_offset = pos;
4857 header_field->value_offset = _DBUS_ALIGN_VALUE (pos, 4);
4860 _dbus_verbose ("Found field %s at offset %d\n",
4861 _dbus_header_field_to_string (field),
4862 header_field->value_offset);
4869 decode_header_data (const DBusString *data,
4873 HeaderField fields[DBUS_HEADER_FIELD_LAST + 1],
4874 int *message_padding)
4876 DBusString field_data;
4882 if (header_len < 16)
4884 _dbus_verbose ("Header length %d is too short\n", header_len);
4889 while (i <= DBUS_HEADER_FIELD_LAST)
4891 fields[i].name_offset = -1;
4892 fields[i].value_offset = -1;
4897 while (pos < header_len)
4899 field = _dbus_string_get_byte (data, pos);
4900 if (field == DBUS_HEADER_FIELD_INVALID)
4901 break; /* Must be padding */
4904 if (!_dbus_marshal_validate_type (data, pos, &type, &pos))
4906 _dbus_verbose ("Failed to validate type of named header field\n");
4910 if (!_dbus_marshal_validate_arg (data, byte_order, 0, type, -1, pos, &new_pos))
4912 _dbus_verbose ("Failed to validate argument to named header field\n");
4916 if (new_pos > header_len)
4918 _dbus_verbose ("Named header field tries to extend beyond header length\n");
4924 case DBUS_HEADER_FIELD_SERVICE:
4925 if (!decode_string_field (data, field, &fields[field],
4926 &field_data, pos, type))
4929 if (!_dbus_string_validate_service (&field_data, 0,
4930 _dbus_string_get_length (&field_data)))
4932 _dbus_verbose ("service field has invalid content \"%s\"\n",
4933 _dbus_string_get_const_data (&field_data));
4938 case DBUS_HEADER_FIELD_INTERFACE:
4939 if (!decode_string_field (data, field, &fields[field],
4940 &field_data, pos, type))
4943 if (!_dbus_string_validate_interface (&field_data, 0,
4944 _dbus_string_get_length (&field_data)))
4946 _dbus_verbose ("interface field has invalid content \"%s\"\n",
4947 _dbus_string_get_const_data (&field_data));
4951 if (_dbus_string_equal_c_str (&field_data,
4952 DBUS_INTERFACE_ORG_FREEDESKTOP_LOCAL))
4954 _dbus_verbose ("Message is on the local interface\n");
4959 case DBUS_HEADER_FIELD_MEMBER:
4960 if (!decode_string_field (data, field, &fields[field],
4961 &field_data, pos, type))
4964 if (!_dbus_string_validate_member (&field_data, 0,
4965 _dbus_string_get_length (&field_data)))
4967 _dbus_verbose ("member field has invalid content \"%s\"\n",
4968 _dbus_string_get_const_data (&field_data));
4973 case DBUS_HEADER_FIELD_ERROR_NAME:
4974 if (!decode_string_field (data, field, &fields[field],
4975 &field_data, pos, type))
4978 if (!_dbus_string_validate_error_name (&field_data, 0,
4979 _dbus_string_get_length (&field_data)))
4981 _dbus_verbose ("error-name field has invalid content \"%s\"\n",
4982 _dbus_string_get_const_data (&field_data));
4987 case DBUS_HEADER_FIELD_SENDER_SERVICE:
4988 if (!decode_string_field (data, field, &fields[field],
4989 &field_data, pos, type))
4992 if (!_dbus_string_validate_service (&field_data, 0,
4993 _dbus_string_get_length (&field_data)))
4995 _dbus_verbose ("sender-service field has invalid content \"%s\"\n",
4996 _dbus_string_get_const_data (&field_data));
5001 case DBUS_HEADER_FIELD_PATH:
5003 /* Path was already validated as part of standard
5004 * type validation, since there's an OBJECT_PATH
5008 if (fields[field].name_offset >= 0)
5010 _dbus_verbose ("path field provided twice\n");
5013 if (type != DBUS_TYPE_OBJECT_PATH)
5015 _dbus_verbose ("path field has wrong type\n");
5019 fields[field].name_offset = pos;
5020 fields[field].value_offset = _DBUS_ALIGN_VALUE (pos, 4);
5022 /* No forging signals from the local path */
5025 s = _dbus_string_get_const_data_len (data,
5026 fields[field].value_offset,
5027 _dbus_string_get_length (data) -
5028 fields[field].value_offset);
5029 if (strcmp (s, DBUS_PATH_ORG_FREEDESKTOP_LOCAL) == 0)
5031 _dbus_verbose ("Message is on the local path\n");
5036 _dbus_verbose ("Found path at offset %d\n",
5037 fields[field].value_offset);
5040 case DBUS_HEADER_FIELD_REPLY_SERIAL:
5041 if (fields[field].name_offset >= 0)
5043 _dbus_verbose ("reply field provided twice\n");
5047 if (type != DBUS_TYPE_UINT32)
5049 _dbus_verbose ("reply field has wrong type\n");
5053 fields[field].name_offset = pos;
5054 fields[field].value_offset = _DBUS_ALIGN_VALUE (pos, 4);
5056 _dbus_verbose ("Found reply serial %u at offset %d\n",
5057 _dbus_demarshal_uint32 (data,
5059 fields[field].value_offset,
5061 fields[field].value_offset);
5065 _dbus_verbose ("Ignoring an unknown header field: %d at offset %d\n",
5072 if (pos < header_len)
5074 /* Alignment padding, verify that it's nul */
5075 if ((header_len - pos) >= 8)
5077 _dbus_verbose ("too much header alignment padding\n");
5081 if (!_dbus_string_validate_nul (data,
5082 pos, (header_len - pos)))
5084 _dbus_verbose ("header alignment padding is not nul\n");
5089 /* Depending on message type, enforce presence of certain fields. */
5090 switch (message_type)
5092 case DBUS_MESSAGE_TYPE_SIGNAL:
5093 case DBUS_MESSAGE_TYPE_METHOD_CALL:
5094 if (fields[DBUS_HEADER_FIELD_PATH].value_offset < 0)
5096 _dbus_verbose ("No path field provided\n");
5099 /* FIXME make this optional, only for method calls */
5100 if (fields[DBUS_HEADER_FIELD_INTERFACE].value_offset < 0)
5102 _dbus_verbose ("No interface field provided\n");
5105 if (fields[DBUS_HEADER_FIELD_MEMBER].value_offset < 0)
5107 _dbus_verbose ("No member field provided\n");
5111 case DBUS_MESSAGE_TYPE_ERROR:
5112 if (fields[DBUS_HEADER_FIELD_ERROR_NAME].value_offset < 0)
5114 _dbus_verbose ("No error-name field provided\n");
5117 if (fields[DBUS_HEADER_FIELD_REPLY_SERIAL].value_offset < 0)
5119 _dbus_verbose ("No reply serial field provided in error\n");
5123 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
5124 if (fields[DBUS_HEADER_FIELD_REPLY_SERIAL].value_offset < 0)
5126 _dbus_verbose ("No reply serial field provided in method return\n");
5131 /* An unknown type, spec requires us to ignore it */
5135 if (message_padding)
5136 *message_padding = header_len - pos;
5142 * Returns a buffer obtained from _dbus_message_loader_get_buffer(),
5143 * indicating to the loader how many bytes of the buffer were filled
5144 * in. This function must always be called, even if no bytes were
5145 * successfully read.
5147 * @param loader the loader.
5148 * @param buffer the buffer.
5149 * @param bytes_read number of bytes that were read into the buffer.
5152 _dbus_message_loader_return_buffer (DBusMessageLoader *loader,
5156 _dbus_assert (loader->buffer_outstanding);
5157 _dbus_assert (buffer == &loader->data);
5159 loader->buffer_outstanding = FALSE;
5163 load_one_message (DBusMessageLoader *loader,
5169 DBusMessage *message;
5170 HeaderField fields[DBUS_HEADER_FIELD_LAST + 1];
5180 _dbus_verbose_bytes_of_string (&loader->data, 0, header_len + body_len);
5183 if (!decode_header_data (&loader->data,
5184 header_len, byte_order,
5186 fields, &header_padding))
5188 _dbus_verbose ("Header was invalid\n");
5189 loader->corrupted = TRUE;
5193 next_arg = header_len;
5194 while (next_arg < (header_len + body_len))
5197 int prev = next_arg;
5199 if (!_dbus_marshal_validate_type (&loader->data, next_arg,
5202 _dbus_verbose ("invalid typecode at offset %d\n", prev);
5203 loader->corrupted = TRUE;
5207 if (!_dbus_marshal_validate_arg (&loader->data,
5214 _dbus_verbose ("invalid type data at %d, next_arg\n", next_arg);
5215 loader->corrupted = TRUE;
5219 _dbus_assert (next_arg > prev);
5222 if (next_arg > (header_len + body_len))
5224 _dbus_verbose ("end of last arg at %d but message has len %d+%d=%d\n",
5225 next_arg, header_len, body_len,
5226 header_len + body_len);
5227 loader->corrupted = TRUE;
5231 message = dbus_message_new_empty_header ();
5232 if (message == NULL)
5234 _dbus_verbose ("Failed to allocate empty message\n");
5239 message->byte_order = byte_order;
5240 message->header_padding = header_padding;
5242 /* Copy in the offsets we found */
5244 while (i <= DBUS_HEADER_FIELD_LAST)
5246 message->header_fields[i] = fields[i];
5250 if (!_dbus_list_append (&loader->messages, message))
5252 _dbus_verbose ("Failed to append new message to loader queue\n");
5257 _dbus_assert (_dbus_string_get_length (&message->header) == 0);
5258 _dbus_assert (_dbus_string_get_length (&message->body) == 0);
5260 _dbus_assert (_dbus_string_get_length (&loader->data) >=
5261 (header_len + body_len));
5263 if (!_dbus_string_move_len (&loader->data, 0, header_len, &message->header, 0))
5265 _dbus_verbose ("Failed to move header into new message\n");
5270 if (!_dbus_string_move_len (&loader->data, 0, body_len, &message->body, 0))
5272 _dbus_verbose ("Failed to move body into new message\n");
5278 _dbus_assert (_dbus_string_get_length (&message->header) == header_len);
5279 _dbus_assert (_dbus_string_get_length (&message->body) == body_len);
5281 /* Fill in caches (we checked the types of these fields
5284 message->reply_serial = get_uint_field (message,
5285 DBUS_HEADER_FIELD_REPLY_SERIAL);
5287 message->client_serial = _dbus_demarshal_uint32 (&message->header,
5288 message->byte_order,
5289 CLIENT_SERIAL_OFFSET,
5291 if (message->client_serial == 0 ||
5292 (message->header_fields[DBUS_HEADER_FIELD_REPLY_SERIAL].value_offset >= 0 && message->reply_serial == 0))
5294 _dbus_verbose ("client_serial = %d reply_serial = %d, one of these no good\n",
5295 message->client_serial,
5296 message->reply_serial);
5298 loader->corrupted = TRUE;
5302 /* Fill in signature (FIXME should do this during validation,
5303 * but I didn't want to spend time on it since we want to change
5304 * the wire format to contain the signature anyway)
5307 DBusMessageIter iter;
5309 dbus_message_iter_init (message, &iter);
5315 t = dbus_message_iter_get_arg_type (&iter);
5316 if (t == DBUS_TYPE_INVALID)
5319 if (!_dbus_string_append_byte (&message->signature,
5322 _dbus_verbose ("failed to append type byte to signature\n");
5327 if (t == DBUS_TYPE_ARRAY)
5329 DBusMessageIter child_iter;
5334 while (array_type == DBUS_TYPE_ARRAY)
5336 DBusMessageIter parent_iter = child_iter;
5337 dbus_message_iter_init_array_iterator (&parent_iter,
5341 if (!_dbus_string_append_byte (&message->signature,
5344 _dbus_verbose ("failed to append array type byte to signature\n");
5352 while (dbus_message_iter_next (&iter));
5355 _dbus_verbose ("Loaded message %p\n", message);
5357 _dbus_assert (!oom);
5358 _dbus_assert (!loader->corrupted);
5366 if (message != NULL)
5368 /* Put the data back so we can try again later if it was an OOM issue */
5369 if (_dbus_string_get_length (&message->body) > 0)
5373 result = _dbus_string_copy_len (&message->body, 0, body_len,
5376 _dbus_assert (result); /* because DBusString never reallocs smaller */
5379 if (_dbus_string_get_length (&message->header) > 0)
5383 result = _dbus_string_copy_len (&message->header, 0, header_len,
5386 _dbus_assert (result); /* because DBusString never reallocs smaller */
5389 /* does nothing if the message isn't in the list */
5390 _dbus_list_remove_last (&loader->messages, message);
5392 dbus_message_unref (message);
5400 * Converts buffered data into messages.
5402 * @todo we need to check that the proper named header fields exist
5403 * for each message type.
5405 * @todo If a message has unknown type, we should probably eat it
5406 * right here rather than passing it out to applications. However
5407 * it's not an error to see messages of unknown type.
5409 * @param loader the loader.
5410 * @returns #TRUE if we had enough memory to finish.
5413 _dbus_message_loader_queue_messages (DBusMessageLoader *loader)
5415 while (!loader->corrupted && _dbus_string_get_length (&loader->data) >= 16)
5417 const char *header_data;
5418 int byte_order, message_type, header_len, body_len;
5419 dbus_uint32_t header_len_unsigned, body_len_unsigned;
5421 header_data = _dbus_string_get_const_data_len (&loader->data, 0, 16);
5423 _dbus_assert (_DBUS_ALIGN_ADDRESS (header_data, 4) == header_data);
5425 if (header_data[VERSION_OFFSET] != DBUS_MAJOR_PROTOCOL_VERSION)
5427 _dbus_verbose ("Message has protocol version %d ours is %d\n",
5428 (int) header_data[VERSION_OFFSET], DBUS_MAJOR_PROTOCOL_VERSION);
5429 loader->corrupted = TRUE;
5433 byte_order = header_data[BYTE_ORDER_OFFSET];
5435 if (byte_order != DBUS_LITTLE_ENDIAN &&
5436 byte_order != DBUS_BIG_ENDIAN)
5438 _dbus_verbose ("Message with bad byte order '%c' received\n",
5440 loader->corrupted = TRUE;
5444 /* Unknown types are ignored, but INVALID is
5447 message_type = header_data[TYPE_OFFSET];
5448 if (message_type == DBUS_MESSAGE_TYPE_INVALID)
5450 _dbus_verbose ("Message with bad type '%d' received\n",
5452 loader->corrupted = TRUE;
5456 header_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 4);
5457 body_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 8);
5459 if (header_len_unsigned < 16)
5461 _dbus_verbose ("Message had broken too-small header length %u\n",
5462 header_len_unsigned);
5463 loader->corrupted = TRUE;
5467 if (header_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE ||
5468 body_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE)
5470 _dbus_verbose ("Header or body length too large (%u %u)\n",
5471 header_len_unsigned,
5473 loader->corrupted = TRUE;
5477 /* Now that we know the values are in signed range, get
5478 * rid of stupid unsigned, just causes bugs
5480 header_len = header_len_unsigned;
5481 body_len = body_len_unsigned;
5483 if (_DBUS_ALIGN_VALUE (header_len, 8) != header_len_unsigned)
5486 _dbus_verbose ("header length %d is not aligned to 8 bytes\n",
5488 loader->corrupted = TRUE;
5492 if (header_len + body_len > loader->max_message_size)
5494 _dbus_verbose ("Message claimed length header = %d body = %d exceeds max message length %ld\n",
5495 header_len, body_len, loader->max_message_size);
5496 loader->corrupted = TRUE;
5500 if (_dbus_string_get_length (&loader->data) >= (header_len + body_len))
5502 if (!load_one_message (loader, byte_order, message_type,
5503 header_len, body_len))
5514 * Peeks at first loaded message, returns #NULL if no messages have
5517 * @param loader the loader.
5518 * @returns the next message, or #NULL if none.
5521 _dbus_message_loader_peek_message (DBusMessageLoader *loader)
5523 if (loader->messages)
5524 return loader->messages->data;
5530 * Pops a loaded message (passing ownership of the message
5531 * to the caller). Returns #NULL if no messages have been
5534 * @param loader the loader.
5535 * @returns the next message, or #NULL if none.
5538 _dbus_message_loader_pop_message (DBusMessageLoader *loader)
5540 return _dbus_list_pop_first (&loader->messages);
5544 * Pops a loaded message inside a list link (passing ownership of the
5545 * message and link to the caller). Returns #NULL if no messages have
5548 * @param loader the loader.
5549 * @returns the next message link, or #NULL if none.
5552 _dbus_message_loader_pop_message_link (DBusMessageLoader *loader)
5554 return _dbus_list_pop_first_link (&loader->messages);
5558 * Returns a popped message link, used to undo a pop.
5560 * @param loader the loader
5561 * @param link the link with a message in it
5564 _dbus_message_loader_putback_message_link (DBusMessageLoader *loader,
5567 _dbus_list_prepend_link (&loader->messages, link);
5571 * Checks whether the loader is confused due to bad data.
5572 * If messages are received that are invalid, the
5573 * loader gets confused and gives up permanently.
5574 * This state is called "corrupted."
5576 * @param loader the loader
5577 * @returns #TRUE if the loader is hosed.
5580 _dbus_message_loader_get_is_corrupted (DBusMessageLoader *loader)
5582 return loader->corrupted;
5586 * Sets the maximum size message we allow.
5588 * @param loader the loader
5589 * @param size the max message size in bytes
5592 _dbus_message_loader_set_max_message_size (DBusMessageLoader *loader,
5595 if (size > MAX_SANE_MESSAGE_SIZE)
5597 _dbus_verbose ("clamping requested max message size %ld to %d\n",
5598 size, MAX_SANE_MESSAGE_SIZE);
5599 size = MAX_SANE_MESSAGE_SIZE;
5601 loader->max_message_size = size;
5605 * Gets the maximum allowed message size in bytes.
5607 * @param loader the loader
5608 * @returns max size in bytes
5611 _dbus_message_loader_get_max_message_size (DBusMessageLoader *loader)
5613 return loader->max_message_size;
5616 static DBusDataSlotAllocator slot_allocator;
5617 _DBUS_DEFINE_GLOBAL_LOCK (message_slots);
5620 * Allocates an integer ID to be used for storing application-specific
5621 * data on any DBusMessage. The allocated ID may then be used
5622 * with dbus_message_set_data() and dbus_message_get_data().
5623 * The passed-in slot must be initialized to -1, and is filled in
5624 * with the slot ID. If the passed-in slot is not -1, it's assumed
5625 * to be already allocated, and its refcount is incremented.
5627 * The allocated slot is global, i.e. all DBusMessage objects will
5628 * have a slot with the given integer ID reserved.
5630 * @param slot_p address of a global variable storing the slot
5631 * @returns #FALSE on failure (no memory)
5634 dbus_message_allocate_data_slot (dbus_int32_t *slot_p)
5636 return _dbus_data_slot_allocator_alloc (&slot_allocator,
5637 _DBUS_LOCK_NAME (message_slots),
5642 * Deallocates a global ID for message data slots.
5643 * dbus_message_get_data() and dbus_message_set_data() may no
5644 * longer be used with this slot. Existing data stored on existing
5645 * DBusMessage objects will be freed when the message is
5646 * finalized, but may not be retrieved (and may only be replaced if
5647 * someone else reallocates the slot). When the refcount on the
5648 * passed-in slot reaches 0, it is set to -1.
5650 * @param slot_p address storing the slot to deallocate
5653 dbus_message_free_data_slot (dbus_int32_t *slot_p)
5655 _dbus_return_if_fail (*slot_p >= 0);
5657 _dbus_data_slot_allocator_free (&slot_allocator, slot_p);
5661 * Stores a pointer on a DBusMessage, along
5662 * with an optional function to be used for freeing
5663 * the data when the data is set again, or when
5664 * the message is finalized. The slot number
5665 * must have been allocated with dbus_message_allocate_data_slot().
5667 * @param message the message
5668 * @param slot the slot number
5669 * @param data the data to store
5670 * @param free_data_func finalizer function for the data
5671 * @returns #TRUE if there was enough memory to store the data
5674 dbus_message_set_data (DBusMessage *message,
5677 DBusFreeFunction free_data_func)
5679 DBusFreeFunction old_free_func;
5683 _dbus_return_val_if_fail (message != NULL, FALSE);
5684 _dbus_return_val_if_fail (slot >= 0, FALSE);
5686 retval = _dbus_data_slot_list_set (&slot_allocator,
5687 &message->slot_list,
5688 slot, data, free_data_func,
5689 &old_free_func, &old_data);
5693 /* Do the actual free outside the message lock */
5695 (* old_free_func) (old_data);
5702 * Retrieves data previously set with dbus_message_set_data().
5703 * The slot must still be allocated (must not have been freed).
5705 * @param message the message
5706 * @param slot the slot to get data from
5707 * @returns the data, or #NULL if not found
5710 dbus_message_get_data (DBusMessage *message,
5715 _dbus_return_val_if_fail (message != NULL, NULL);
5717 res = _dbus_data_slot_list_get (&slot_allocator,
5718 &message->slot_list,
5725 * Utility function to convert a machine-readable (not translated)
5726 * string into a D-BUS message type.
5729 * "method_call" -> DBUS_MESSAGE_TYPE_METHOD_CALL
5730 * "method_return" -> DBUS_MESSAGE_TYPE_METHOD_RETURN
5731 * "signal" -> DBUS_MESSAGE_TYPE_SIGNAL
5732 * "error" -> DBUS_MESSAGE_TYPE_ERROR
5733 * anything else -> DBUS_MESSAGE_TYPE_INVALID
5738 dbus_message_type_from_string (const char *type_str)
5740 if (strcmp (type_str, "method_call") == 0)
5741 return DBUS_MESSAGE_TYPE_METHOD_CALL;
5742 if (strcmp (type_str, "method_return") == 0)
5743 return DBUS_MESSAGE_TYPE_METHOD_RETURN;
5744 else if (strcmp (type_str, "signal") == 0)
5745 return DBUS_MESSAGE_TYPE_SIGNAL;
5746 else if (strcmp (type_str, "error") == 0)
5747 return DBUS_MESSAGE_TYPE_ERROR;
5749 return DBUS_MESSAGE_TYPE_INVALID;
5753 #ifdef DBUS_BUILD_TESTS
5754 #include "dbus-test.h"
5758 message_iter_test (DBusMessage *message)
5760 DBusMessageIter iter, dict, array, array2;
5762 unsigned char *data;
5763 dbus_int32_t *our_int_array;
5766 dbus_message_iter_init (message, &iter);
5769 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_STRING)
5770 _dbus_assert_not_reached ("Argument type isn't string");
5772 str = dbus_message_iter_get_string (&iter);
5773 if (strcmp (str, "Test string") != 0)
5774 _dbus_assert_not_reached ("Strings differ");
5777 if (!dbus_message_iter_next (&iter))
5778 _dbus_assert_not_reached ("Reached end of arguments");
5780 /* Signed integer tests */
5781 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_INT32)
5782 _dbus_assert_not_reached ("Argument type isn't int32");
5784 if (dbus_message_iter_get_int32 (&iter) != -0x12345678)
5785 _dbus_assert_not_reached ("Signed integers differ");
5787 if (!dbus_message_iter_next (&iter))
5788 _dbus_assert_not_reached ("Reached end of fields");
5790 /* Unsigned integer tests */
5791 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
5792 _dbus_assert_not_reached ("Argument type isn't int32");
5794 if (dbus_message_iter_get_uint32 (&iter) != 0xedd1e)
5795 _dbus_assert_not_reached ("Unsigned integers differ");
5797 if (!dbus_message_iter_next (&iter))
5798 _dbus_assert_not_reached ("Reached end of arguments");
5801 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DOUBLE)
5802 _dbus_assert_not_reached ("Argument type isn't double");
5804 if (dbus_message_iter_get_double (&iter) != 3.14159)
5805 _dbus_assert_not_reached ("Doubles differ");
5807 if (!dbus_message_iter_next (&iter))
5808 _dbus_assert_not_reached ("Reached end of arguments");
5810 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY)
5811 _dbus_assert_not_reached ("Argument type not an array");
5813 if (dbus_message_iter_get_array_type (&iter) != DBUS_TYPE_DOUBLE)
5814 _dbus_assert_not_reached ("Array type not double");
5817 dbus_message_iter_init_array_iterator (&iter, &array, NULL);
5819 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
5820 _dbus_assert_not_reached ("Argument type isn't double");
5822 if (dbus_message_iter_get_double (&array) != 1.5)
5823 _dbus_assert_not_reached ("Unsigned integers differ");
5825 if (!dbus_message_iter_next (&array))
5826 _dbus_assert_not_reached ("Reached end of arguments");
5828 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
5829 _dbus_assert_not_reached ("Argument type isn't double");
5831 if (dbus_message_iter_get_double (&array) != 2.5)
5832 _dbus_assert_not_reached ("Unsigned integers differ");
5834 if (dbus_message_iter_next (&array))
5835 _dbus_assert_not_reached ("Didn't reach end of arguments");
5837 if (!dbus_message_iter_next (&iter))
5838 _dbus_assert_not_reached ("Reached end of arguments");
5843 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
5844 _dbus_assert_not_reached ("not dict type");
5846 dbus_message_iter_init_dict_iterator (&iter, &dict);
5848 str = dbus_message_iter_get_dict_key (&dict);
5849 if (str == NULL || strcmp (str, "test") != 0)
5850 _dbus_assert_not_reached ("wrong dict key");
5853 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
5854 _dbus_assert_not_reached ("wrong dict entry type");
5856 if (dbus_message_iter_get_uint32 (&dict) != 0xDEADBEEF)
5857 _dbus_assert_not_reached ("wrong dict entry value");
5859 if (!dbus_message_iter_next (&dict))
5860 _dbus_assert_not_reached ("reached end of dict");
5862 /* array of array of int32 (in dict) */
5864 str = dbus_message_iter_get_dict_key (&dict);
5865 if (str == NULL || strcmp (str, "array") != 0)
5866 _dbus_assert_not_reached ("wrong dict key");
5869 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_ARRAY)
5870 _dbus_assert_not_reached ("Argument type not an array");
5872 if (dbus_message_iter_get_array_type (&dict) != DBUS_TYPE_ARRAY)
5873 _dbus_assert_not_reached ("Array type not array");
5875 dbus_message_iter_init_array_iterator (&dict, &array, NULL);
5877 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_ARRAY)
5878 _dbus_assert_not_reached ("Argument type isn't array");
5880 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
5881 _dbus_assert_not_reached ("Array type not int32");
5883 dbus_message_iter_init_array_iterator (&array, &array2, NULL);
5885 if (dbus_message_iter_get_arg_type (&array2) != DBUS_TYPE_INT32)
5886 _dbus_assert_not_reached ("Argument type isn't int32");
5888 if (dbus_message_iter_get_int32 (&array2) != 0x12345678)
5889 _dbus_assert_not_reached ("Signed integers differ");
5891 if (!dbus_message_iter_next (&array2))
5892 _dbus_assert_not_reached ("Reached end of arguments");
5894 if (dbus_message_iter_get_int32 (&array2) != 0x23456781)
5895 _dbus_assert_not_reached ("Signed integers differ");
5897 if (dbus_message_iter_next (&array2))
5898 _dbus_assert_not_reached ("Didn't reached end of arguments");
5900 if (!dbus_message_iter_next (&array))
5901 _dbus_assert_not_reached ("Reached end of arguments");
5903 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
5904 _dbus_assert_not_reached ("Array type not int32");
5906 if (!dbus_message_iter_get_int32_array (&array,
5909 _dbus_assert_not_reached ("couldn't get int32 array");
5911 _dbus_assert (len == 3);
5912 _dbus_assert (our_int_array[0] == 0x34567812 &&
5913 our_int_array[1] == 0x45678123 &&
5914 our_int_array[2] == 0x56781234);
5915 dbus_free (our_int_array);
5917 if (dbus_message_iter_next (&array))
5918 _dbus_assert_not_reached ("Didn't reach end of array");
5920 if (dbus_message_iter_next (&dict))
5921 _dbus_assert_not_reached ("Didn't reach end of dict");
5923 if (!dbus_message_iter_next (&iter))
5924 _dbus_assert_not_reached ("Reached end of arguments");
5926 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_BYTE)
5928 _dbus_warn ("type was: %d\n", dbus_message_iter_get_arg_type (&iter));
5929 _dbus_assert_not_reached ("wrong type after dict (should be byte)");
5932 if (dbus_message_iter_get_byte (&iter) != 0xF0)
5933 _dbus_assert_not_reached ("wrong value after dict");
5936 if (!dbus_message_iter_next (&iter))
5937 _dbus_assert_not_reached ("Reached end of arguments");
5939 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NIL)
5940 _dbus_assert_not_reached ("not a nil type");
5942 if (!dbus_message_iter_next (&iter))
5943 _dbus_assert_not_reached ("Reached end of arguments");
5945 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NAMED)
5946 _dbus_assert_not_reached ("wrong type after dict");
5948 if (!dbus_message_iter_get_named (&iter, &str, &data, &len))
5949 _dbus_assert_not_reached ("failed to get named");
5951 _dbus_assert (strcmp (str, "named")==0);
5952 _dbus_assert (len == 5);
5953 _dbus_assert (strcmp (data, "data")==0);
5957 if (dbus_message_iter_next (&iter))
5958 _dbus_assert_not_reached ("Didn't reach end of arguments");
5963 check_message_handling_type (DBusMessageIter *iter,
5966 DBusMessageIter child_iter;
5972 case DBUS_TYPE_BYTE:
5973 dbus_message_iter_get_byte (iter);
5975 case DBUS_TYPE_BOOLEAN:
5976 dbus_message_iter_get_boolean (iter);
5978 case DBUS_TYPE_INT32:
5979 dbus_message_iter_get_int32 (iter);
5981 case DBUS_TYPE_UINT32:
5982 dbus_message_iter_get_uint32 (iter);
5984 case DBUS_TYPE_INT64:
5985 #ifdef DBUS_HAVE_INT64
5986 dbus_message_iter_get_int64 (iter);
5989 case DBUS_TYPE_UINT64:
5990 #ifdef DBUS_HAVE_INT64
5991 dbus_message_iter_get_uint64 (iter);
5994 case DBUS_TYPE_DOUBLE:
5995 dbus_message_iter_get_double (iter);
5997 case DBUS_TYPE_STRING:
6000 str = dbus_message_iter_get_string (iter);
6003 _dbus_warn ("NULL string in message\n");
6009 case DBUS_TYPE_NAMED:
6012 unsigned char *data;
6015 if (!dbus_message_iter_get_named (iter, &name, &data, &len))
6017 _dbus_warn ("error reading name from named type\n");
6024 case DBUS_TYPE_ARRAY:
6028 dbus_message_iter_init_array_iterator (iter, &child_iter, &array_type);
6030 while (dbus_message_iter_has_next (&child_iter))
6032 if (!check_message_handling_type (&child_iter, array_type))
6034 _dbus_warn ("error in array element\n");
6038 if (!dbus_message_iter_next (&child_iter))
6043 case DBUS_TYPE_DICT:
6048 dbus_message_iter_init_dict_iterator (iter, &child_iter);
6050 while ((entry_type = dbus_message_iter_get_arg_type (&child_iter)) != DBUS_TYPE_INVALID)
6052 key = dbus_message_iter_get_dict_key (&child_iter);
6055 _dbus_warn ("error reading dict key\n");
6060 if (!check_message_handling_type (&child_iter, entry_type))
6062 _dbus_warn ("error in dict value\n");
6066 if (!dbus_message_iter_next (&child_iter))
6073 _dbus_warn ("unknown type %d\n", type);
6082 check_message_handling (DBusMessage *message)
6084 DBusMessageIter iter;
6087 dbus_uint32_t client_serial;
6091 client_serial = dbus_message_get_serial (message);
6093 /* can't use set_serial due to the assertions at the start of it */
6094 _dbus_marshal_set_uint32 (&message->header,
6095 message->byte_order,
6096 CLIENT_SERIAL_OFFSET,
6099 if (client_serial != dbus_message_get_serial (message))
6101 _dbus_warn ("get/set cycle for client_serial did not succeed\n");
6105 /* If we implement message_set_arg (message, n, value)
6106 * then we would want to test it here
6109 dbus_message_iter_init (message, &iter);
6110 while ((type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID)
6112 if (!check_message_handling_type (&iter, type))
6115 if (!dbus_message_iter_next (&iter))
6126 check_have_valid_message (DBusMessageLoader *loader)
6128 DBusMessage *message;
6134 if (!_dbus_message_loader_queue_messages (loader))
6135 _dbus_assert_not_reached ("no memory to queue messages");
6137 if (_dbus_message_loader_get_is_corrupted (loader))
6139 _dbus_warn ("loader corrupted on message that was expected to be valid\n");
6143 message = _dbus_message_loader_pop_message (loader);
6144 if (message == NULL)
6146 _dbus_warn ("didn't load message that was expected to be valid (message not popped)\n");
6150 if (_dbus_string_get_length (&loader->data) > 0)
6152 _dbus_warn ("had leftover bytes from expected-to-be-valid single message\n");
6156 /* Verify that we're able to properly deal with the message.
6157 * For example, this would detect improper handling of messages
6158 * in nonstandard byte order.
6160 if (!check_message_handling (message))
6167 dbus_message_unref (message);
6173 check_invalid_message (DBusMessageLoader *loader)
6179 if (!_dbus_message_loader_queue_messages (loader))
6180 _dbus_assert_not_reached ("no memory to queue messages");
6182 if (!_dbus_message_loader_get_is_corrupted (loader))
6184 _dbus_warn ("loader not corrupted on message that was expected to be invalid\n");
6195 check_incomplete_message (DBusMessageLoader *loader)
6197 DBusMessage *message;
6203 if (!_dbus_message_loader_queue_messages (loader))
6204 _dbus_assert_not_reached ("no memory to queue messages");
6206 if (_dbus_message_loader_get_is_corrupted (loader))
6208 _dbus_warn ("loader corrupted on message that was expected to be valid (but incomplete)\n");
6212 message = _dbus_message_loader_pop_message (loader);
6213 if (message != NULL)
6215 _dbus_warn ("loaded message that was expected to be incomplete\n");
6223 dbus_message_unref (message);
6228 check_loader_results (DBusMessageLoader *loader,
6229 DBusMessageValidity validity)
6231 if (!_dbus_message_loader_queue_messages (loader))
6232 _dbus_assert_not_reached ("no memory to queue messages");
6236 case _DBUS_MESSAGE_VALID:
6237 return check_have_valid_message (loader);
6238 case _DBUS_MESSAGE_INVALID:
6239 return check_invalid_message (loader);
6240 case _DBUS_MESSAGE_INCOMPLETE:
6241 return check_incomplete_message (loader);
6242 case _DBUS_MESSAGE_UNKNOWN:
6246 _dbus_assert_not_reached ("bad DBusMessageValidity");
6252 * Loads the message in the given message file.
6254 * @param filename filename to load
6255 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
6256 * @param data string to load message into
6257 * @returns #TRUE if the message was loaded
6260 dbus_internal_do_not_use_load_message_file (const DBusString *filename,
6272 _dbus_verbose ("Loading raw %s\n", _dbus_string_get_const_data (filename));
6273 dbus_error_init (&error);
6274 if (!_dbus_file_get_contents (data, filename, &error))
6276 _dbus_warn ("Could not load message file %s: %s\n",
6277 _dbus_string_get_const_data (filename),
6279 dbus_error_free (&error);
6285 if (!_dbus_message_data_load (data, filename))
6287 _dbus_warn ("Could not load message file %s\n",
6288 _dbus_string_get_const_data (filename));
6301 * Tries loading the message in the given message file
6302 * and verifies that DBusMessageLoader can handle it.
6304 * @param filename filename to load
6305 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
6306 * @param expected_validity what the message has to be like to return #TRUE
6307 * @returns #TRUE if the message has the expected validity
6310 dbus_internal_do_not_use_try_message_file (const DBusString *filename,
6312 DBusMessageValidity expected_validity)
6319 if (!_dbus_string_init (&data))
6320 _dbus_assert_not_reached ("could not allocate string\n");
6322 if (!dbus_internal_do_not_use_load_message_file (filename, is_raw,
6326 retval = dbus_internal_do_not_use_try_message_data (&data, expected_validity);
6332 if (_dbus_string_get_length (&data) > 0)
6333 _dbus_verbose_bytes_of_string (&data, 0,
6334 _dbus_string_get_length (&data));
6336 _dbus_warn ("Failed message loader test on %s\n",
6337 _dbus_string_get_const_data (filename));
6340 _dbus_string_free (&data);
6346 * Tries loading the given message data.
6349 * @param data the message data
6350 * @param expected_validity what the message has to be like to return #TRUE
6351 * @returns #TRUE if the message has the expected validity
6354 dbus_internal_do_not_use_try_message_data (const DBusString *data,
6355 DBusMessageValidity expected_validity)
6357 DBusMessageLoader *loader;
6365 /* Write the data one byte at a time */
6367 loader = _dbus_message_loader_new ();
6369 /* check some trivial loader functions */
6370 _dbus_message_loader_ref (loader);
6371 _dbus_message_loader_unref (loader);
6372 _dbus_message_loader_get_max_message_size (loader);
6374 len = _dbus_string_get_length (data);
6375 for (i = 0; i < len; i++)
6379 _dbus_message_loader_get_buffer (loader, &buffer);
6380 _dbus_string_append_byte (buffer,
6381 _dbus_string_get_byte (data, i));
6382 _dbus_message_loader_return_buffer (loader, buffer, 1);
6385 if (!check_loader_results (loader, expected_validity))
6388 _dbus_message_loader_unref (loader);
6391 /* Write the data all at once */
6393 loader = _dbus_message_loader_new ();
6398 _dbus_message_loader_get_buffer (loader, &buffer);
6399 _dbus_string_copy (data, 0, buffer,
6400 _dbus_string_get_length (buffer));
6401 _dbus_message_loader_return_buffer (loader, buffer, 1);
6404 if (!check_loader_results (loader, expected_validity))
6407 _dbus_message_loader_unref (loader);
6410 /* Write the data 2 bytes at a time */
6412 loader = _dbus_message_loader_new ();
6414 len = _dbus_string_get_length (data);
6415 for (i = 0; i < len; i += 2)
6419 _dbus_message_loader_get_buffer (loader, &buffer);
6420 _dbus_string_append_byte (buffer,
6421 _dbus_string_get_byte (data, i));
6423 _dbus_string_append_byte (buffer,
6424 _dbus_string_get_byte (data, i+1));
6425 _dbus_message_loader_return_buffer (loader, buffer, 1);
6428 if (!check_loader_results (loader, expected_validity))
6431 _dbus_message_loader_unref (loader);
6439 _dbus_message_loader_unref (loader);
6445 process_test_subdir (const DBusString *test_base_dir,
6447 DBusMessageValidity validity,
6448 DBusForeachMessageFileFunc function,
6451 DBusString test_directory;
6452 DBusString filename;
6460 if (!_dbus_string_init (&test_directory))
6461 _dbus_assert_not_reached ("didn't allocate test_directory\n");
6463 _dbus_string_init_const (&filename, subdir);
6465 if (!_dbus_string_copy (test_base_dir, 0,
6466 &test_directory, 0))
6467 _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory");
6469 if (!_dbus_concat_dir_and_file (&test_directory, &filename))
6470 _dbus_assert_not_reached ("couldn't allocate full path");
6472 _dbus_string_free (&filename);
6473 if (!_dbus_string_init (&filename))
6474 _dbus_assert_not_reached ("didn't allocate filename string\n");
6476 dbus_error_init (&error);
6477 dir = _dbus_directory_open (&test_directory, &error);
6480 _dbus_warn ("Could not open %s: %s\n",
6481 _dbus_string_get_const_data (&test_directory),
6483 dbus_error_free (&error);
6487 printf ("Testing %s:\n", subdir);
6490 while (_dbus_directory_get_next_file (dir, &filename, &error))
6492 DBusString full_path;
6495 if (!_dbus_string_init (&full_path))
6496 _dbus_assert_not_reached ("couldn't init string");
6498 if (!_dbus_string_copy (&test_directory, 0, &full_path, 0))
6499 _dbus_assert_not_reached ("couldn't copy dir to full_path");
6501 if (!_dbus_concat_dir_and_file (&full_path, &filename))
6502 _dbus_assert_not_reached ("couldn't concat file to dir");
6504 if (_dbus_string_ends_with_c_str (&filename, ".message"))
6506 else if (_dbus_string_ends_with_c_str (&filename, ".message-raw"))
6510 _dbus_verbose ("Skipping non-.message file %s\n",
6511 _dbus_string_get_const_data (&filename));
6512 _dbus_string_free (&full_path);
6517 _dbus_string_get_const_data (&filename));
6519 _dbus_verbose (" expecting %s for %s\n",
6520 validity == _DBUS_MESSAGE_VALID ? "valid" :
6521 (validity == _DBUS_MESSAGE_INVALID ? "invalid" :
6522 (validity == _DBUS_MESSAGE_INCOMPLETE ? "incomplete" : "unknown")),
6523 _dbus_string_get_const_data (&filename));
6525 if (! (*function) (&full_path, is_raw, validity, user_data))
6527 _dbus_string_free (&full_path);
6531 _dbus_string_free (&full_path);
6534 if (dbus_error_is_set (&error))
6536 _dbus_warn ("Could not get next file in %s: %s\n",
6537 _dbus_string_get_const_data (&test_directory),
6539 dbus_error_free (&error);
6548 _dbus_directory_close (dir);
6549 _dbus_string_free (&test_directory);
6550 _dbus_string_free (&filename);
6556 * Runs the given function on every message file in the test suite.
6557 * The function should return #FALSE on test failure or fatal error.
6559 * @param test_data_dir root dir of the test suite data files (top_srcdir/test/data)
6560 * @param func the function to run
6561 * @param user_data data for function
6562 * @returns #FALSE if there's a failure
6565 dbus_internal_do_not_use_foreach_message_file (const char *test_data_dir,
6566 DBusForeachMessageFileFunc func,
6569 DBusString test_directory;
6574 _dbus_string_init_const (&test_directory, test_data_dir);
6576 if (!process_test_subdir (&test_directory, "valid-messages",
6577 _DBUS_MESSAGE_VALID, func, user_data))
6580 if (!process_test_subdir (&test_directory, "invalid-messages",
6581 _DBUS_MESSAGE_INVALID, func, user_data))
6584 if (!process_test_subdir (&test_directory, "incomplete-messages",
6585 _DBUS_MESSAGE_INCOMPLETE, func, user_data))
6592 _dbus_string_free (&test_directory);
6598 verify_test_message (DBusMessage *message)
6600 DBusMessageIter iter, dict;
6602 dbus_int32_t our_int;
6605 dbus_bool_t our_bool;
6606 dbus_uint32_t our_uint32;
6607 dbus_int32_t *our_uint32_array;
6608 int our_uint32_array_len;
6609 dbus_int32_t *our_int32_array;
6610 int our_int32_array_len;
6611 char **our_string_array;
6612 int our_string_array_len;
6613 #ifdef DBUS_HAVE_INT64
6614 dbus_int64_t our_int64;
6615 dbus_uint64_t our_uint64;
6616 dbus_int64_t *our_uint64_array;
6617 int our_uint64_array_len;
6618 dbus_int64_t *our_int64_array;
6619 int our_int64_array_len;
6621 double *our_double_array;
6622 int our_double_array_len;
6623 unsigned char *our_byte_array;
6624 int our_byte_array_len;
6625 unsigned char *our_boolean_array;
6626 int our_boolean_array_len;
6628 dbus_message_iter_init (message, &iter);
6630 dbus_error_init (&error);
6631 if (!dbus_message_iter_get_args (&iter, &error,
6632 DBUS_TYPE_INT32, &our_int,
6633 #ifdef DBUS_HAVE_INT64
6634 DBUS_TYPE_INT64, &our_int64,
6635 DBUS_TYPE_UINT64, &our_uint64,
6637 DBUS_TYPE_STRING, &our_str,
6638 DBUS_TYPE_DOUBLE, &our_double,
6639 DBUS_TYPE_BOOLEAN, &our_bool,
6640 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32,
6641 &our_uint32_array, &our_uint32_array_len,
6642 DBUS_TYPE_ARRAY, DBUS_TYPE_INT32,
6643 &our_int32_array, &our_int32_array_len,
6644 #ifdef DBUS_HAVE_INT64
6645 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT64,
6646 &our_uint64_array, &our_uint64_array_len,
6647 DBUS_TYPE_ARRAY, DBUS_TYPE_INT64,
6648 &our_int64_array, &our_int64_array_len,
6650 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING,
6651 &our_string_array, &our_string_array_len,
6652 DBUS_TYPE_ARRAY, DBUS_TYPE_DOUBLE,
6653 &our_double_array, &our_double_array_len,
6654 DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
6655 &our_byte_array, &our_byte_array_len,
6656 DBUS_TYPE_ARRAY, DBUS_TYPE_BOOLEAN,
6657 &our_boolean_array, &our_boolean_array_len,
6660 _dbus_warn ("error: %s - %s\n", error.name,
6661 (error.message != NULL) ? error.message : "no message");
6662 _dbus_assert_not_reached ("Could not get arguments");
6665 if (our_int != -0x12345678)
6666 _dbus_assert_not_reached ("integers differ!");
6668 #ifdef DBUS_HAVE_INT64
6669 if (our_int64 != -0x123456789abcd)
6670 _dbus_assert_not_reached ("64-bit integers differ!");
6671 if (our_uint64 != 0x123456789abcd)
6672 _dbus_assert_not_reached ("64-bit unsigned integers differ!");
6675 if (our_double != 3.14159)
6676 _dbus_assert_not_reached ("doubles differ!");
6678 if (strcmp (our_str, "Test string") != 0)
6679 _dbus_assert_not_reached ("strings differ!");
6680 dbus_free (our_str);
6683 _dbus_assert_not_reached ("booleans differ");
6685 if (our_uint32_array_len != 4 ||
6686 our_uint32_array[0] != 0x12345678 ||
6687 our_uint32_array[1] != 0x23456781 ||
6688 our_uint32_array[2] != 0x34567812 ||
6689 our_uint32_array[3] != 0x45678123)
6690 _dbus_assert_not_reached ("uint array differs");
6691 dbus_free (our_uint32_array);
6693 if (our_int32_array_len != 4 ||
6694 our_int32_array[0] != 0x12345678 ||
6695 our_int32_array[1] != -0x23456781 ||
6696 our_int32_array[2] != 0x34567812 ||
6697 our_int32_array[3] != -0x45678123)
6698 _dbus_assert_not_reached ("int array differs");
6699 dbus_free (our_int32_array);
6701 #ifdef DBUS_HAVE_INT64
6702 if (our_uint64_array_len != 4 ||
6703 our_uint64_array[0] != 0x12345678 ||
6704 our_uint64_array[1] != 0x23456781 ||
6705 our_uint64_array[2] != 0x34567812 ||
6706 our_uint64_array[3] != 0x45678123)
6707 _dbus_assert_not_reached ("uint64 array differs");
6708 dbus_free (our_uint64_array);
6710 if (our_int64_array_len != 4 ||
6711 our_int64_array[0] != 0x12345678 ||
6712 our_int64_array[1] != -0x23456781 ||
6713 our_int64_array[2] != 0x34567812 ||
6714 our_int64_array[3] != -0x45678123)
6715 _dbus_assert_not_reached ("int64 array differs");
6716 dbus_free (our_int64_array);
6717 #endif /* DBUS_HAVE_INT64 */
6719 if (our_string_array_len != 4)
6720 _dbus_assert_not_reached ("string array has wrong length");
6722 if (strcmp (our_string_array[0], "Foo") != 0 ||
6723 strcmp (our_string_array[1], "bar") != 0 ||
6724 strcmp (our_string_array[2], "") != 0 ||
6725 strcmp (our_string_array[3], "woo woo woo woo") != 0)
6726 _dbus_assert_not_reached ("string array differs");
6728 dbus_free_string_array (our_string_array);
6730 if (our_double_array_len != 3)
6731 _dbus_assert_not_reached ("double array had wrong length");
6733 /* On all IEEE machines (i.e. everything sane) exact equality
6734 * should be preserved over the wire
6736 if (our_double_array[0] != 0.1234 ||
6737 our_double_array[1] != 9876.54321 ||
6738 our_double_array[2] != -300.0)
6739 _dbus_assert_not_reached ("double array had wrong values");
6741 dbus_free (our_double_array);
6743 if (our_byte_array_len != 4)
6744 _dbus_assert_not_reached ("byte array had wrong length");
6746 if (our_byte_array[0] != 'a' ||
6747 our_byte_array[1] != 'b' ||
6748 our_byte_array[2] != 'c' ||
6749 our_byte_array[3] != 234)
6750 _dbus_assert_not_reached ("byte array had wrong values");
6752 dbus_free (our_byte_array);
6754 if (our_boolean_array_len != 5)
6755 _dbus_assert_not_reached ("bool array had wrong length");
6757 if (our_boolean_array[0] != TRUE ||
6758 our_boolean_array[1] != FALSE ||
6759 our_boolean_array[2] != TRUE ||
6760 our_boolean_array[3] != TRUE ||
6761 our_boolean_array[4] != FALSE)
6762 _dbus_assert_not_reached ("bool array had wrong values");
6764 dbus_free (our_boolean_array);
6766 if (!dbus_message_iter_next (&iter))
6767 _dbus_assert_not_reached ("Reached end of arguments");
6769 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
6770 _dbus_assert_not_reached ("not dict type");
6772 dbus_message_iter_init_dict_iterator (&iter, &dict);
6774 our_str = dbus_message_iter_get_dict_key (&dict);
6775 if (our_str == NULL || strcmp (our_str, "test") != 0)
6776 _dbus_assert_not_reached ("wrong dict key");
6777 dbus_free (our_str);
6779 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
6781 _dbus_verbose ("dict entry type: %d\n", dbus_message_iter_get_arg_type (&dict));
6782 _dbus_assert_not_reached ("wrong dict entry type");
6785 if ((our_uint32 = dbus_message_iter_get_uint32 (&dict)) != 0xDEADBEEF)
6787 _dbus_verbose ("dict entry val: %x\n", our_uint32);
6788 _dbus_assert_not_reached ("wrong dict entry value");
6791 if (dbus_message_iter_next (&dict))
6792 _dbus_assert_not_reached ("Didn't reach end of dict");
6794 if (!dbus_message_iter_next (&iter))
6795 _dbus_assert_not_reached ("Reached end of arguments");
6797 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
6798 _dbus_assert_not_reached ("wrong type after dict");
6800 if (dbus_message_iter_get_uint32 (&iter) != 0xCAFEBABE)
6801 _dbus_assert_not_reached ("wrong value after dict");
6803 if (dbus_message_iter_next (&iter))
6804 _dbus_assert_not_reached ("Didn't reach end of arguments");
6808 * @ingroup DBusMessageInternals
6809 * Unit test for DBusMessage.
6811 * @returns #TRUE on success.
6814 _dbus_message_test (const char *test_data_dir)
6816 DBusMessage *message;
6817 DBusMessageLoader *loader;
6818 DBusMessageIter iter, child_iter, child_iter2, child_iter3;
6824 const dbus_uint32_t our_uint32_array[] =
6825 { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
6826 const dbus_uint32_t our_int32_array[] =
6827 { 0x12345678, -0x23456781, 0x34567812, -0x45678123 };
6828 #ifdef DBUS_HAVE_INT64
6829 const dbus_uint64_t our_uint64_array[] =
6830 { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
6831 const dbus_uint64_t our_int64_array[] =
6832 { 0x12345678, -0x23456781, 0x34567812, -0x45678123 };
6834 const char *our_string_array[] = { "Foo", "bar", "", "woo woo woo woo" };
6835 const double our_double_array[] = { 0.1234, 9876.54321, -300.0 };
6836 const unsigned char our_byte_array[] = { 'a', 'b', 'c', 234 };
6837 const unsigned char our_boolean_array[] = { TRUE, FALSE, TRUE, TRUE, FALSE };
6843 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
6845 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
6846 "/org/freedesktop/TestPath",
6847 "Foo.TestInterface",
6849 _dbus_assert (dbus_message_has_destination (message, "org.freedesktop.DBus.TestService"));
6850 _dbus_assert (dbus_message_is_method_call (message, "Foo.TestInterface",
6852 _dbus_assert (strcmp (dbus_message_get_path (message),
6853 "/org/freedesktop/TestPath") == 0);
6854 _dbus_message_set_serial (message, 1234);
6855 /* string length including nul byte not a multiple of 4 */
6856 if (!dbus_message_set_sender (message, "org.foo.bar1"))
6857 _dbus_assert_not_reached ("out of memory");
6858 _dbus_assert (dbus_message_has_sender (message, "org.foo.bar1"));
6859 dbus_message_set_reply_serial (message, 5678);
6860 if (!dbus_message_set_sender (message, NULL))
6861 _dbus_assert_not_reached ("out of memory");
6862 _dbus_assert (!dbus_message_has_sender (message, "org.foo.bar1"));
6863 _dbus_assert (dbus_message_get_serial (message) == 1234);
6864 _dbus_assert (dbus_message_get_reply_serial (message) == 5678);
6865 _dbus_assert (dbus_message_has_destination (message, "org.freedesktop.DBus.TestService"));
6867 _dbus_assert (dbus_message_get_no_reply (message) == FALSE);
6868 dbus_message_set_no_reply (message, TRUE);
6869 _dbus_assert (dbus_message_get_no_reply (message) == TRUE);
6870 dbus_message_set_no_reply (message, FALSE);
6871 _dbus_assert (dbus_message_get_no_reply (message) == FALSE);
6874 /* Set/get some header fields */
6876 if (!dbus_message_set_path (message, "/foo"))
6877 _dbus_assert_not_reached ("out of memory");
6878 _dbus_assert (strcmp (dbus_message_get_path (message),
6881 if (!dbus_message_set_interface (message, "org.Foo"))
6882 _dbus_assert_not_reached ("out of memory");
6883 _dbus_assert (strcmp (dbus_message_get_interface (message),
6886 if (!dbus_message_set_member (message, "Bar"))
6887 _dbus_assert_not_reached ("out of memory");
6888 _dbus_assert (strcmp (dbus_message_get_member (message),
6891 /* Set/get them with longer values */
6892 if (!dbus_message_set_path (message, "/foo/bar"))
6893 _dbus_assert_not_reached ("out of memory");
6894 _dbus_assert (strcmp (dbus_message_get_path (message),
6897 if (!dbus_message_set_interface (message, "org.Foo.Bar"))
6898 _dbus_assert_not_reached ("out of memory");
6899 _dbus_assert (strcmp (dbus_message_get_interface (message),
6900 "org.Foo.Bar") == 0);
6902 if (!dbus_message_set_member (message, "BarFoo"))
6903 _dbus_assert_not_reached ("out of memory");
6904 _dbus_assert (strcmp (dbus_message_get_member (message),
6907 /* Realloc shorter again */
6909 if (!dbus_message_set_path (message, "/foo"))
6910 _dbus_assert_not_reached ("out of memory");
6911 _dbus_assert (strcmp (dbus_message_get_path (message),
6914 if (!dbus_message_set_interface (message, "org.Foo"))
6915 _dbus_assert_not_reached ("out of memory");
6916 _dbus_assert (strcmp (dbus_message_get_interface (message),
6919 if (!dbus_message_set_member (message, "Bar"))
6920 _dbus_assert_not_reached ("out of memory");
6921 _dbus_assert (strcmp (dbus_message_get_member (message),
6925 dbus_message_unref (message);
6927 /* Test the vararg functions */
6928 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
6929 "/org/freedesktop/TestPath",
6930 "Foo.TestInterface",
6932 _dbus_message_set_serial (message, 1);
6933 dbus_message_append_args (message,
6934 DBUS_TYPE_INT32, -0x12345678,
6935 #ifdef DBUS_HAVE_INT64
6936 DBUS_TYPE_INT64, -0x123456789abcd,
6937 DBUS_TYPE_UINT64, 0x123456789abcd,
6939 DBUS_TYPE_STRING, "Test string",
6940 DBUS_TYPE_DOUBLE, 3.14159,
6941 DBUS_TYPE_BOOLEAN, TRUE,
6942 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, our_uint32_array,
6943 _DBUS_N_ELEMENTS (our_uint32_array),
6944 DBUS_TYPE_ARRAY, DBUS_TYPE_INT32, our_int32_array,
6945 _DBUS_N_ELEMENTS (our_int32_array),
6946 #ifdef DBUS_HAVE_INT64
6947 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT64, our_uint64_array,
6948 _DBUS_N_ELEMENTS (our_uint64_array),
6949 DBUS_TYPE_ARRAY, DBUS_TYPE_INT64, our_int64_array,
6950 _DBUS_N_ELEMENTS (our_int64_array),
6952 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, our_string_array,
6953 _DBUS_N_ELEMENTS (our_string_array),
6954 DBUS_TYPE_ARRAY, DBUS_TYPE_DOUBLE, our_double_array,
6955 _DBUS_N_ELEMENTS (our_double_array),
6956 DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, our_byte_array,
6957 _DBUS_N_ELEMENTS (our_byte_array),
6958 DBUS_TYPE_ARRAY, DBUS_TYPE_BOOLEAN, our_boolean_array,
6959 _DBUS_N_ELEMENTS (our_boolean_array),
6962 dbus_message_append_iter_init (message, &iter);
6963 dbus_message_iter_append_dict (&iter, &child_iter);
6964 dbus_message_iter_append_dict_key (&child_iter, "test");
6965 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
6966 dbus_message_iter_append_uint32 (&iter, 0xCAFEBABE);
6969 sig[i++] = DBUS_TYPE_INT32;
6970 #ifdef DBUS_HAVE_INT64
6971 sig[i++] = DBUS_TYPE_INT64;
6972 sig[i++] = DBUS_TYPE_UINT64;
6974 sig[i++] = DBUS_TYPE_STRING;
6975 sig[i++] = DBUS_TYPE_DOUBLE;
6976 sig[i++] = DBUS_TYPE_BOOLEAN;
6977 sig[i++] = DBUS_TYPE_ARRAY;
6978 sig[i++] = DBUS_TYPE_UINT32;
6979 sig[i++] = DBUS_TYPE_ARRAY;
6980 sig[i++] = DBUS_TYPE_INT32;
6981 #ifdef DBUS_HAVE_INT64
6982 sig[i++] = DBUS_TYPE_ARRAY;
6983 sig[i++] = DBUS_TYPE_UINT64;
6984 sig[i++] = DBUS_TYPE_ARRAY;
6985 sig[i++] = DBUS_TYPE_INT64;
6987 sig[i++] = DBUS_TYPE_ARRAY;
6988 sig[i++] = DBUS_TYPE_STRING;
6989 sig[i++] = DBUS_TYPE_ARRAY;
6990 sig[i++] = DBUS_TYPE_DOUBLE;
6991 sig[i++] = DBUS_TYPE_ARRAY;
6992 sig[i++] = DBUS_TYPE_BYTE;
6993 sig[i++] = DBUS_TYPE_ARRAY;
6994 sig[i++] = DBUS_TYPE_BOOLEAN;
6995 sig[i++] = DBUS_TYPE_DICT;
6996 sig[i++] = DBUS_TYPE_UINT32;
6997 sig[i++] = DBUS_TYPE_INVALID;
6999 _dbus_assert (i < (int) _DBUS_N_ELEMENTS (sig));
7001 _dbus_verbose_bytes_of_string (&message->header, 0,
7002 _dbus_string_get_length (&message->header));
7003 _dbus_verbose_bytes_of_string (&message->body, 0,
7004 _dbus_string_get_length (&message->body));
7006 _dbus_verbose ("Signature expected \"%s\" actual \"%s\"\n",
7007 sig, dbus_message_get_signature (message));
7009 s = dbus_message_get_signature (message);
7011 _dbus_assert (dbus_message_has_signature (message, sig));
7012 _dbus_assert (strcmp (s, sig) == 0);
7014 verify_test_message (message);
7016 copy = dbus_message_copy (message);
7018 _dbus_assert (message->client_serial == copy->client_serial);
7019 _dbus_assert (message->reply_serial == copy->reply_serial);
7020 _dbus_assert (message->header_padding == copy->header_padding);
7022 _dbus_assert (_dbus_string_get_length (&message->header) ==
7023 _dbus_string_get_length (©->header));
7025 _dbus_assert (_dbus_string_get_length (&message->body) ==
7026 _dbus_string_get_length (©->body));
7028 _dbus_assert (_dbus_string_get_length (&message->signature) ==
7029 _dbus_string_get_length (©->signature));
7031 verify_test_message (copy);
7033 name1 = dbus_message_get_interface (message);
7034 name2 = dbus_message_get_interface (copy);
7036 _dbus_assert (strcmp (name1, name2) == 0);
7038 name1 = dbus_message_get_member (message);
7039 name2 = dbus_message_get_member (copy);
7041 _dbus_assert (strcmp (name1, name2) == 0);
7043 dbus_message_unref (message);
7044 dbus_message_unref (copy);
7046 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
7047 "/org/freedesktop/TestPath",
7048 "Foo.TestInterface",
7051 _dbus_message_set_serial (message, 1);
7052 dbus_message_set_reply_serial (message, 0x12345678);
7054 dbus_message_append_iter_init (message, &iter);
7055 dbus_message_iter_append_string (&iter, "Test string");
7056 dbus_message_iter_append_int32 (&iter, -0x12345678);
7057 dbus_message_iter_append_uint32 (&iter, 0xedd1e);
7058 dbus_message_iter_append_double (&iter, 3.14159);
7060 dbus_message_iter_append_array (&iter, &child_iter, DBUS_TYPE_DOUBLE);
7061 dbus_message_iter_append_double (&child_iter, 1.5);
7062 dbus_message_iter_append_double (&child_iter, 2.5);
7065 dbus_message_iter_append_dict (&iter, &child_iter);
7066 dbus_message_iter_append_dict_key (&child_iter, "test");
7067 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
7069 /* array of array of int32 (in dict) */
7070 dbus_message_iter_append_dict_key (&child_iter, "array");
7071 dbus_message_iter_append_array (&child_iter, &child_iter2, DBUS_TYPE_ARRAY);
7072 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
7073 dbus_message_iter_append_int32 (&child_iter3, 0x12345678);
7074 dbus_message_iter_append_int32 (&child_iter3, 0x23456781);
7075 _dbus_warn ("next call expected to fail with wrong array type\n");
7076 _dbus_assert (!dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_UINT32));
7077 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
7078 dbus_message_iter_append_int32 (&child_iter3, 0x34567812);
7079 dbus_message_iter_append_int32 (&child_iter3, 0x45678123);
7080 dbus_message_iter_append_int32 (&child_iter3, 0x56781234);
7082 dbus_message_iter_append_byte (&iter, 0xF0);
7084 dbus_message_iter_append_nil (&iter);
7086 dbus_message_iter_append_named (&iter, "named",
7089 message_iter_test (message);
7091 /* Message loader test */
7092 _dbus_message_lock (message);
7093 loader = _dbus_message_loader_new ();
7095 /* check ref/unref */
7096 _dbus_message_loader_ref (loader);
7097 _dbus_message_loader_unref (loader);
7099 /* Write the header data one byte at a time */
7100 data = _dbus_string_get_const_data (&message->header);
7101 for (i = 0; i < _dbus_string_get_length (&message->header); i++)
7105 _dbus_message_loader_get_buffer (loader, &buffer);
7106 _dbus_string_append_byte (buffer, data[i]);
7107 _dbus_message_loader_return_buffer (loader, buffer, 1);
7110 /* Write the body data one byte at a time */
7111 data = _dbus_string_get_const_data (&message->body);
7112 for (i = 0; i < _dbus_string_get_length (&message->body); i++)
7116 _dbus_message_loader_get_buffer (loader, &buffer);
7117 _dbus_string_append_byte (buffer, data[i]);
7118 _dbus_message_loader_return_buffer (loader, buffer, 1);
7121 copy = dbus_message_copy (message); /* save for tests below */
7122 dbus_message_unref (message);
7124 /* Now pop back the message */
7125 if (!_dbus_message_loader_queue_messages (loader))
7126 _dbus_assert_not_reached ("no memory to queue messages");
7128 if (_dbus_message_loader_get_is_corrupted (loader))
7129 _dbus_assert_not_reached ("message loader corrupted");
7131 message = _dbus_message_loader_pop_message (loader);
7133 _dbus_assert_not_reached ("received a NULL message");
7135 if (dbus_message_get_reply_serial (message) != 0x12345678)
7136 _dbus_assert_not_reached ("reply serial fields differ");
7138 message_iter_test (message);
7140 dbus_message_unref (message);
7141 _dbus_message_loader_unref (loader);
7143 message = dbus_message_new_method_return (copy);
7144 if (message == NULL)
7145 _dbus_assert_not_reached ("out of memory\n");
7146 dbus_message_unref (copy);
7148 if (!dbus_message_append_args (message,
7149 DBUS_TYPE_STRING, "hello",
7151 _dbus_assert_not_reached ("no memory");
7153 if (!dbus_message_has_signature (message, "s"))
7154 _dbus_assert_not_reached ("method return has wrong signature");
7156 dbus_error_init (&error);
7157 if (!dbus_message_get_args (message, &error, DBUS_TYPE_STRING,
7158 &t, DBUS_TYPE_INVALID))
7161 _dbus_warn ("Failed to get expected string arg: %s\n", error.message);
7166 dbus_message_unref (message);
7168 /* Now load every message in test_data_dir if we have one */
7169 if (test_data_dir == NULL)
7172 return dbus_internal_do_not_use_foreach_message_file (test_data_dir,
7173 (DBusForeachMessageFileFunc)
7174 dbus_internal_do_not_use_try_message_file,
7178 #endif /* DBUS_BUILD_TESTS */