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.
61 static dbus_bool_t field_is_named[FIELD_LAST] =
63 FALSE, /* FIELD_HEADER_LENGTH */
64 FALSE, /* FIELD_BODY_LENGTH */
65 FALSE, /* FIELD_CLIENT_SERIAL */
66 TRUE, /* FIELD_PATH */
67 TRUE, /* FIELD_INTERFACE */
68 TRUE, /* FIELD_MEMBER */
69 TRUE, /* FIELD_ERROR_NAME */
70 TRUE, /* FIELD_SERVICE */
71 TRUE, /* FIELD_SENDER_SERVICE */
72 TRUE /* FIELD_REPLY_SERIAL */
76 * Cached information about a header field in the message
80 int offset; /**< Offset to start of field (location of name of field
85 /** Offset to byte order from start of header */
86 #define BYTE_ORDER_OFFSET 0
87 /** Offset to type from start of header */
89 /** Offset to flags from start of header */
90 #define FLAGS_OFFSET 2
91 /** Offset to version from start of header */
92 #define VERSION_OFFSET 3
95 * @brief Internals of DBusMessage
97 * Object representing a message received from or to be sent to
98 * another application. This is an opaque object, all members
103 DBusAtomic refcount; /**< Reference count */
105 DBusString header; /**< Header network data, stored
106 * separately from body so we can
107 * independently realloc it.
110 HeaderField header_fields[FIELD_LAST]; /**< Track the location
111 * of each field in "header"
114 dbus_uint32_t client_serial; /**< Cached client serial value for speed */
115 dbus_uint32_t reply_serial; /**< Cached reply serial value for speed */
117 int header_padding; /**< bytes of alignment in header */
119 DBusString body; /**< Body network data. */
121 char byte_order; /**< Message byte order. */
123 DBusList *size_counters; /**< 0-N DBusCounter used to track message size. */
124 long size_counter_delta; /**< Size we incremented the size counters by. */
126 dbus_uint32_t changed_stamp; /**< Incremented when iterators are invalidated. */
128 unsigned int locked : 1; /**< Message being sent, no modifications allowed. */
130 DBusDataSlotList slot_list; /**< Data stored by allocated integer ID */
134 DBUS_MESSAGE_ITER_TYPE_MESSAGE,
135 DBUS_MESSAGE_ITER_TYPE_ARRAY,
136 DBUS_MESSAGE_ITER_TYPE_DICT
139 /** typedef for internals of message iterator */
140 typedef struct DBusMessageRealIter DBusMessageRealIter;
143 * @brief Internals of DBusMessageIter
145 * Object representing a position in a message. All fields are internal.
147 struct DBusMessageRealIter
149 DBusMessageRealIter *parent_iter; /**< parent iter, or NULL */
150 DBusMessage *message; /**< Message used */
151 dbus_uint32_t changed_stamp; /**< stamp to detect invalid iters */
153 /* This is an int instead of an enum to get a guaranteed size for the dummy: */
154 int type; /**< type of iter */
156 int pos; /**< Current position in the string */
157 int end; /**< position right after the container */
158 int container_start; /**< offset of the start of the container */
159 int container_length_pos; /**< offset of the length of the container */
161 int wrote_dict_key; /**< whether we wrote the dict key for the current dict element */
163 int array_type_pos; /**< pointer to the position of the array element type */
164 int array_type_done; /**< TRUE if the array type is fully finished */
168 * Gets the data to be sent over the network for this message.
169 * The header and then the body should be written out.
170 * This function is guaranteed to always return the same
171 * data once a message is locked (with _dbus_message_lock()).
173 * @param message the message.
174 * @param header return location for message header data.
175 * @param body return location for message body data.
178 _dbus_message_get_network_data (DBusMessage *message,
179 const DBusString **header,
180 const DBusString **body)
182 _dbus_assert (message->locked);
184 *header = &message->header;
185 *body = &message->body;
189 clear_header_padding (DBusMessage *message)
191 _dbus_string_shorten (&message->header,
192 message->header_padding);
193 message->header_padding = 0;
197 append_header_padding (DBusMessage *message)
200 old_len = _dbus_string_get_length (&message->header);
201 if (!_dbus_string_align_length (&message->header, 8))
204 message->header_padding = _dbus_string_get_length (&message->header) - old_len;
210 adjust_field_offsets (DBusMessage *message,
220 while (i < FIELD_LAST)
222 if (message->header_fields[i].offset > offsets_after)
223 message->header_fields[i].offset += delta;
229 #ifdef DBUS_BUILD_TESTS
230 /* tests-only until it's actually used */
232 get_int_field (DBusMessage *message,
237 _dbus_assert (field < FIELD_LAST);
239 offset = message->header_fields[field].offset;
242 return -1; /* useless if -1 is a valid value of course */
244 return _dbus_demarshal_int32 (&message->header,
252 get_uint_field (DBusMessage *message,
257 _dbus_assert (field < FIELD_LAST);
259 offset = message->header_fields[field].offset;
262 return -1; /* useless if -1 is a valid value of course */
264 return _dbus_demarshal_uint32 (&message->header,
271 get_string_field (DBusMessage *message,
278 offset = message->header_fields[field].offset;
280 _dbus_assert (field < FIELD_LAST);
285 /* offset points to string length, string data follows it */
286 /* FIXME _dbus_demarshal_const_string() that returned
287 * a reference to the string plus its len might be nice.
291 *len = _dbus_demarshal_uint32 (&message->header,
296 data = _dbus_string_get_const_data (&message->header);
298 return data + (offset + 4);
301 /* returns FALSE if no memory, TRUE with NULL path if no field */
303 get_path_field_decomposed (DBusMessage *message,
309 offset = message->header_fields[field].offset;
311 _dbus_assert (field < FIELD_LAST);
319 return _dbus_demarshal_object_path (&message->header,
326 #ifdef DBUS_BUILD_TESTS
328 append_int_field (DBusMessage *message,
335 _dbus_assert (!message->locked);
337 clear_header_padding (message);
339 orig_len = _dbus_string_get_length (&message->header);
341 if (!_dbus_string_align_length (&message->header, 4))
344 if (!_dbus_string_append_len (&message->header, name, 4))
347 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_INT32))
350 if (!_dbus_string_align_length (&message->header, 4))
353 message->header_fields[field].offset =
354 _dbus_string_get_length (&message->header);
356 if (!_dbus_marshal_int32 (&message->header, message->byte_order,
360 if (!append_header_padding (message))
366 message->header_fields[field].offset = -1;
367 _dbus_string_set_length (&message->header, orig_len);
369 /* this must succeed because it was allocated on function entry and
370 * DBusString doesn't ever realloc smaller
372 if (!append_header_padding (message))
373 _dbus_assert_not_reached ("failed to reappend header padding");
379 append_uint_field (DBusMessage *message,
386 _dbus_assert (!message->locked);
388 clear_header_padding (message);
390 orig_len = _dbus_string_get_length (&message->header);
392 if (!_dbus_string_align_length (&message->header, 4))
395 if (!_dbus_string_append_len (&message->header, name, 4))
398 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_UINT32))
401 if (!_dbus_string_align_length (&message->header, 4))
404 message->header_fields[field].offset =
405 _dbus_string_get_length (&message->header);
407 if (!_dbus_marshal_uint32 (&message->header, message->byte_order,
411 if (!append_header_padding (message))
417 message->header_fields[field].offset = -1;
418 _dbus_string_set_length (&message->header, orig_len);
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");
429 append_string_field (DBusMessage *message,
437 _dbus_assert (!message->locked);
439 clear_header_padding (message);
441 orig_len = _dbus_string_get_length (&message->header);
443 if (!_dbus_string_align_length (&message->header, 4))
446 if (!_dbus_string_append_len (&message->header, name, 4))
449 if (!_dbus_string_append_byte (&message->header, type))
452 if (!_dbus_string_align_length (&message->header, 4))
455 message->header_fields[field].offset =
456 _dbus_string_get_length (&message->header);
458 if (!_dbus_marshal_string (&message->header, message->byte_order,
462 if (!append_header_padding (message))
468 message->header_fields[field].offset = -1;
469 _dbus_string_set_length (&message->header, orig_len);
471 /* this must succeed because it was allocated on function entry and
472 * DBusString doesn't ever realloc smaller
474 if (!append_header_padding (message))
475 _dbus_assert_not_reached ("failed to reappend header padding");
480 #ifdef DBUS_BUILD_TESTS
481 /* This isn't used, but building it when tests are enabled just to
482 * keep it compiling if we need it in future
485 delete_int_or_uint_field (DBusMessage *message,
488 int offset = message->header_fields[field].offset;
490 _dbus_assert (!message->locked);
491 _dbus_assert (field_is_named[field]);
496 clear_header_padding (message);
498 /* The field typecode and name take up 8 bytes */
499 _dbus_string_delete (&message->header,
503 message->header_fields[field].offset = -1;
505 adjust_field_offsets (message,
509 append_header_padding (message);
514 delete_string_field (DBusMessage *message,
517 int offset = message->header_fields[field].offset;
521 _dbus_assert (!message->locked);
522 _dbus_assert (field_is_named[field]);
527 clear_header_padding (message);
529 get_string_field (message, field, &len);
531 /* The field typecode and name take up 8 bytes, and the nul
532 * termination is 1 bytes, string length integer is 4 bytes
534 delete_len = 8 + 4 + 1 + len;
536 _dbus_string_delete (&message->header,
540 message->header_fields[field].offset = -1;
542 adjust_field_offsets (message,
546 append_header_padding (message);
549 #ifdef DBUS_BUILD_TESTS
551 set_int_field (DBusMessage *message,
555 int offset = message->header_fields[field].offset;
557 _dbus_assert (!message->locked);
561 /* need to append the field */
566 _dbus_assert_not_reached ("appending an int field we don't support appending");
572 _dbus_marshal_set_int32 (&message->header,
582 set_uint_field (DBusMessage *message,
586 int offset = message->header_fields[field].offset;
588 _dbus_assert (!message->locked);
592 /* need to append the field */
596 case FIELD_REPLY_SERIAL:
597 return append_uint_field (message, field,
598 DBUS_HEADER_FIELD_REPLY,
601 _dbus_assert_not_reached ("appending a uint field we don't support appending");
607 _dbus_marshal_set_uint32 (&message->header,
616 set_string_field (DBusMessage *message,
621 int offset = message->header_fields[field].offset;
623 _dbus_assert (!message->locked);
624 _dbus_assert (value != NULL);
628 /* need to append the field */
633 return append_string_field (message, field, type,
634 DBUS_HEADER_FIELD_PATH,
636 case FIELD_SENDER_SERVICE:
637 return append_string_field (message, field, type,
638 DBUS_HEADER_FIELD_SENDER_SERVICE,
640 case FIELD_INTERFACE:
641 return append_string_field (message, field, type,
642 DBUS_HEADER_FIELD_INTERFACE,
645 return append_string_field (message, field, type,
646 DBUS_HEADER_FIELD_MEMBER,
648 case FIELD_ERROR_NAME:
649 return append_string_field (message, field, type,
650 DBUS_HEADER_FIELD_ERROR_NAME,
653 return append_string_field (message, field, type,
654 DBUS_HEADER_FIELD_SERVICE,
657 _dbus_assert_not_reached ("appending a string field we don't support appending");
668 clear_header_padding (message);
670 old_len = _dbus_string_get_length (&message->header);
672 len = strlen (value);
674 _dbus_string_init_const_len (&v, value,
675 len + 1); /* include nul */
676 if (!_dbus_marshal_set_string (&message->header,
682 new_len = _dbus_string_get_length (&message->header);
684 adjust_field_offsets (message,
688 if (!append_header_padding (message))
694 /* this must succeed because it was allocated on function entry and
695 * DBusString doesn't ever realloc smaller
697 if (!append_header_padding (message))
698 _dbus_assert_not_reached ("failed to reappend header padding");
705 * Sets the serial number of a message.
706 * This can only be done once on a message.
708 * @param message the message
709 * @param serial the serial
712 _dbus_message_set_serial (DBusMessage *message,
715 _dbus_assert (!message->locked);
716 _dbus_assert (dbus_message_get_serial (message) == 0);
718 set_uint_field (message, FIELD_CLIENT_SERIAL,
720 message->client_serial = serial;
724 * Sets the reply serial of a message (the client serial
725 * of the message this is a reply to).
727 * @param message the message
728 * @param reply_serial the client serial
729 * @returns #FALSE if not enough memory
732 dbus_message_set_reply_serial (DBusMessage *message,
733 dbus_uint32_t reply_serial)
735 _dbus_assert (!message->locked);
737 if (set_uint_field (message, FIELD_REPLY_SERIAL,
740 message->reply_serial = reply_serial;
748 * Returns the serial of a message or -1 if none has been specified.
749 * The message's serial number is provided by the application sending
750 * the message and is used to identify replies to this message.
752 * @param message the message
753 * @returns the client serial
756 dbus_message_get_serial (DBusMessage *message)
758 return message->client_serial;
762 * Returns the serial that the message is
763 * a reply to or 0 if none.
765 * @param message the message
766 * @returns the reply serial
769 dbus_message_get_reply_serial (DBusMessage *message)
771 return message->reply_serial;
775 * Adds a counter to be incremented immediately with the
776 * size of this message, and decremented by the size
777 * of this message when this message if finalized.
778 * The link contains a counter with its refcount already
779 * incremented, but the counter itself not incremented.
780 * Ownership of link and counter refcount is passed to
783 * @param message the message
784 * @param link link with counter as data
787 _dbus_message_add_size_counter_link (DBusMessage *message,
790 /* right now we don't recompute the delta when message
791 * size changes, and that's OK for current purposes
792 * I think, but could be important to change later.
793 * Do recompute it whenever there are no outstanding counters,
794 * since it's basically free.
796 if (message->size_counters == NULL)
798 message->size_counter_delta =
799 _dbus_string_get_length (&message->header) +
800 _dbus_string_get_length (&message->body);
803 _dbus_verbose ("message has size %ld\n",
804 message->size_counter_delta);
808 _dbus_list_append_link (&message->size_counters, link);
810 _dbus_counter_adjust (link->data, message->size_counter_delta);
814 * Adds a counter to be incremented immediately with the
815 * size of this message, and decremented by the size
816 * of this message when this message if finalized.
818 * @param message the message
819 * @param counter the counter
820 * @returns #FALSE if no memory
823 _dbus_message_add_size_counter (DBusMessage *message,
824 DBusCounter *counter)
828 link = _dbus_list_alloc_link (counter);
832 _dbus_counter_ref (counter);
833 _dbus_message_add_size_counter_link (message, link);
839 * Removes a counter tracking the size of this message, and decrements
840 * the counter by the size of this message.
842 * @param message the message
843 * @param link_return return the link used
844 * @param counter the counter
847 _dbus_message_remove_size_counter (DBusMessage *message,
848 DBusCounter *counter,
849 DBusList **link_return)
853 link = _dbus_list_find_last (&message->size_counters,
855 _dbus_assert (link != NULL);
857 _dbus_list_unlink (&message->size_counters,
862 _dbus_list_free_link (link);
864 _dbus_counter_adjust (counter, message->size_counter_delta);
866 _dbus_counter_unref (counter);
870 dbus_message_create_header (DBusMessage *message,
874 const char *interface,
876 const char *error_name)
880 _dbus_assert ((interface && member) ||
882 !(interface || member || error_name));
884 if (!_dbus_string_append_byte (&message->header, message->byte_order))
887 if (!_dbus_string_append_byte (&message->header, type))
891 if (!_dbus_string_append_byte (&message->header, flags))
894 if (!_dbus_string_append_byte (&message->header, DBUS_MAJOR_PROTOCOL_VERSION))
897 message->header_fields[FIELD_HEADER_LENGTH].offset = 4;
898 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
901 message->header_fields[FIELD_BODY_LENGTH].offset = 8;
902 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
905 message->header_fields[FIELD_CLIENT_SERIAL].offset = 12;
906 if (!_dbus_marshal_int32 (&message->header, message->byte_order, -1))
909 /* Marshal all the fields (Marshall Fields?) */
913 if (!append_string_field (message,
914 FIELD_PATH, DBUS_TYPE_OBJECT_PATH,
915 DBUS_HEADER_FIELD_PATH,
922 if (!append_string_field (message,
923 FIELD_SERVICE, DBUS_TYPE_STRING,
924 DBUS_HEADER_FIELD_SERVICE,
929 if (interface != NULL)
931 if (!append_string_field (message,
932 FIELD_INTERFACE, DBUS_TYPE_STRING,
933 DBUS_HEADER_FIELD_INTERFACE,
940 if (!append_string_field (message,
941 FIELD_MEMBER, DBUS_TYPE_STRING,
942 DBUS_HEADER_FIELD_MEMBER,
947 if (error_name != NULL)
949 if (!append_string_field (message,
950 FIELD_ERROR_NAME, DBUS_TYPE_STRING,
951 DBUS_HEADER_FIELD_ERROR_NAME,
960 * Locks a message. Allows checking that applications don't keep a
961 * reference to a message in the outgoing queue and change it
962 * underneath us. Messages are locked when they enter the outgoing
963 * queue (dbus_connection_send_message()), and the library complains
964 * if the message is modified while locked.
966 * @param message the message to lock.
969 _dbus_message_lock (DBusMessage *message)
971 if (!message->locked)
973 /* Fill in our lengths */
974 set_uint_field (message,
976 _dbus_string_get_length (&message->header));
978 set_uint_field (message,
980 _dbus_string_get_length (&message->body));
982 message->locked = TRUE;
989 * @defgroup DBusMessage DBusMessage
991 * @brief Message to be sent or received over a DBusConnection.
993 * A DBusMessage is the most basic unit of communication over a
994 * DBusConnection. A DBusConnection represents a stream of messages
995 * received from a remote application, and a stream of messages
996 * sent to a remote application.
1002 * @typedef DBusMessage
1004 * Opaque data type representing a message received from or to be
1005 * sent to another application.
1009 dbus_message_new_empty_header (void)
1011 DBusMessage *message;
1014 message = dbus_new0 (DBusMessage, 1);
1015 if (message == NULL)
1018 message->refcount.value = 1;
1019 message->byte_order = DBUS_COMPILER_BYTE_ORDER;
1020 message->client_serial = 0;
1021 message->reply_serial = 0;
1023 _dbus_data_slot_list_init (&message->slot_list);
1026 while (i < FIELD_LAST)
1028 message->header_fields[i].offset = -1;
1032 if (!_dbus_string_init_preallocated (&message->header, 64))
1034 dbus_free (message);
1038 if (!_dbus_string_init_preallocated (&message->body, 64))
1040 _dbus_string_free (&message->header);
1041 dbus_free (message);
1049 * Constructs a new message of the given message type.
1050 * Types include #DBUS_MESSAGE_TYPE_METHOD_CALL,
1051 * #DBUS_MESSAGE_TYPE_SIGNAL, and so forth.
1053 * @param message_type type of message
1054 * @returns new message or #NULL If no memory
1057 dbus_message_new (int message_type)
1059 DBusMessage *message;
1061 _dbus_return_val_if_fail (message_type != DBUS_MESSAGE_TYPE_INVALID, NULL);
1063 message = dbus_message_new_empty_header ();
1064 if (message == NULL)
1067 if (!dbus_message_create_header (message,
1069 NULL, NULL, NULL, NULL, NULL))
1071 dbus_message_unref (message);
1079 * Constructs a new message to invoke a method on a remote
1080 * object. Returns #NULL if memory can't be allocated for the
1081 * message. The service may be #NULL in which case no service is set;
1082 * this is appropriate when using D-BUS in a peer-to-peer context (no
1083 * message bus). The interface may be #NULL, which means that
1084 * if multiple methods with the given name exist it is undefined
1085 * which one will be invoked.
1087 * @param service service that the message should be sent to or #NULL
1088 * @param path object path the message should be sent to
1089 * @param interface interface to invoke method on
1090 * @param method method to invoke
1092 * @returns a new DBusMessage, free with dbus_message_unref()
1093 * @see dbus_message_unref()
1096 dbus_message_new_method_call (const char *service,
1098 const char *interface,
1101 DBusMessage *message;
1103 _dbus_return_val_if_fail (path != NULL, NULL);
1104 _dbus_return_val_if_fail (method != NULL, NULL);
1106 message = dbus_message_new_empty_header ();
1107 if (message == NULL)
1110 if (!dbus_message_create_header (message,
1111 DBUS_MESSAGE_TYPE_METHOD_CALL,
1112 service, path, interface, method, NULL))
1114 dbus_message_unref (message);
1122 * Constructs a message that is a reply to a method call. Returns
1123 * #NULL if memory can't be allocated for the message.
1125 * @param method_call the message which the created
1126 * message is a reply to.
1127 * @returns a new DBusMessage, free with dbus_message_unref()
1128 * @see dbus_message_new_method_call(), dbus_message_unref()
1131 dbus_message_new_method_return (DBusMessage *method_call)
1133 DBusMessage *message;
1136 _dbus_return_val_if_fail (method_call != NULL, NULL);
1138 sender = get_string_field (method_call,
1139 FIELD_SENDER_SERVICE, NULL);
1141 /* sender is allowed to be null here in peer-to-peer case */
1143 message = dbus_message_new_empty_header ();
1144 if (message == NULL)
1147 if (!dbus_message_create_header (message,
1148 DBUS_MESSAGE_TYPE_METHOD_RETURN,
1149 sender, NULL, NULL, NULL, NULL))
1151 dbus_message_unref (message);
1155 if (!dbus_message_set_reply_serial (message,
1156 dbus_message_get_serial (method_call)))
1158 dbus_message_unref (message);
1166 * Constructs a new message representing a signal emission. Returns
1167 * #NULL if memory can't be allocated for the message.
1168 * A signal is identified by its originating interface, and
1169 * the name of the signal.
1171 * @param path the path to the object emitting the signal
1172 * @param interface the interface the signal is emitted from
1173 * @param name name of the signal
1174 * @returns a new DBusMessage, free with dbus_message_unref()
1175 * @see dbus_message_unref()
1178 dbus_message_new_signal (const char *path,
1179 const char *interface,
1182 DBusMessage *message;
1184 _dbus_return_val_if_fail (path != NULL, NULL);
1185 _dbus_return_val_if_fail (interface != NULL, NULL);
1186 _dbus_return_val_if_fail (name != NULL, NULL);
1188 message = dbus_message_new_empty_header ();
1189 if (message == NULL)
1192 if (!dbus_message_create_header (message,
1193 DBUS_MESSAGE_TYPE_SIGNAL,
1194 NULL, path, interface, name, NULL))
1196 dbus_message_unref (message);
1204 * Creates a new message that is an error reply to a certain message.
1205 * Error replies are possible in response to method calls primarily.
1207 * @param reply_to the original message
1208 * @param error_name the error name
1209 * @param error_message the error message string or #NULL for none
1210 * @returns a new error message
1213 dbus_message_new_error (DBusMessage *reply_to,
1214 const char *error_name,
1215 const char *error_message)
1217 DBusMessage *message;
1219 DBusMessageIter iter;
1221 _dbus_return_val_if_fail (reply_to != NULL, NULL);
1222 _dbus_return_val_if_fail (error_name != NULL, NULL);
1224 sender = get_string_field (reply_to,
1225 FIELD_SENDER_SERVICE, NULL);
1227 /* sender may be NULL for non-message-bus case or
1228 * when the message bus is dealing with an unregistered
1231 message = dbus_message_new_empty_header ();
1232 if (message == NULL)
1235 if (!dbus_message_create_header (message,
1236 DBUS_MESSAGE_TYPE_ERROR,
1237 sender, NULL, NULL, NULL, error_name))
1239 dbus_message_unref (message);
1243 if (!dbus_message_set_reply_serial (message,
1244 dbus_message_get_serial (reply_to)))
1246 dbus_message_unref (message);
1250 if (error_message != NULL)
1252 dbus_message_append_iter_init (message, &iter);
1253 if (!dbus_message_iter_append_string (&iter, error_message))
1255 dbus_message_unref (message);
1264 * Creates a new message that is an exact replica of the message
1265 * specified, except that its refcount is set to 1.
1267 * @param message the message.
1268 * @returns the new message.
1271 dbus_message_copy (const DBusMessage *message)
1273 DBusMessage *retval;
1276 _dbus_return_val_if_fail (message != NULL, NULL);
1278 retval = dbus_new0 (DBusMessage, 1);
1282 retval->refcount.value = 1;
1283 retval->byte_order = message->byte_order;
1284 retval->client_serial = message->client_serial;
1285 retval->reply_serial = message->reply_serial;
1286 retval->header_padding = message->header_padding;
1287 retval->locked = FALSE;
1289 if (!_dbus_string_init (&retval->header))
1295 if (!_dbus_string_init (&retval->body))
1297 _dbus_string_free (&retval->header);
1302 if (!_dbus_string_copy (&message->header, 0,
1303 &retval->header, 0))
1305 _dbus_string_free (&retval->header);
1306 _dbus_string_free (&retval->body);
1312 if (!_dbus_string_copy (&message->body, 0,
1315 _dbus_string_free (&retval->header);
1316 _dbus_string_free (&retval->body);
1322 for (i = 0; i < FIELD_LAST; i++)
1324 retval->header_fields[i].offset = message->header_fields[i].offset;
1332 * Increments the reference count of a DBusMessage.
1334 * @param message The message
1335 * @see dbus_message_unref
1338 dbus_message_ref (DBusMessage *message)
1340 dbus_int32_t old_refcount;
1342 _dbus_return_if_fail (message != NULL);
1344 old_refcount = _dbus_atomic_inc (&message->refcount);
1345 _dbus_assert (old_refcount >= 1);
1349 free_size_counter (void *element,
1352 DBusCounter *counter = element;
1353 DBusMessage *message = data;
1355 _dbus_counter_adjust (counter, - message->size_counter_delta);
1357 _dbus_counter_unref (counter);
1361 * Decrements the reference count of a DBusMessage.
1363 * @param message The message
1364 * @see dbus_message_ref
1367 dbus_message_unref (DBusMessage *message)
1369 dbus_int32_t old_refcount;
1371 _dbus_return_if_fail (message != NULL);
1373 old_refcount = _dbus_atomic_dec (&message->refcount);
1375 _dbus_assert (old_refcount >= 0);
1377 if (old_refcount == 1)
1379 /* This calls application callbacks! */
1380 _dbus_data_slot_list_free (&message->slot_list);
1382 _dbus_list_foreach (&message->size_counters,
1383 free_size_counter, message);
1384 _dbus_list_clear (&message->size_counters);
1386 _dbus_string_free (&message->header);
1387 _dbus_string_free (&message->body);
1389 dbus_free (message);
1394 * Gets the type of a message. Types include
1395 * DBUS_MESSAGE_TYPE_METHOD_CALL, DBUS_MESSAGE_TYPE_METHOD_RETURN,
1396 * DBUS_MESSAGE_TYPE_ERROR, DBUS_MESSAGE_TYPE_SIGNAL, but other types
1397 * are allowed and all code must silently ignore messages of unknown
1398 * type. DBUS_MESSAGE_TYPE_INVALID will never be returned, however.
1401 * @param message the message
1402 * @returns the type of the message
1405 dbus_message_get_type (DBusMessage *message)
1409 type = _dbus_string_get_byte (&message->header, 1);
1410 _dbus_assert (type != DBUS_MESSAGE_TYPE_INVALID);
1416 * Sets the object path this message is being sent to (for
1417 * DBUS_MESSAGE_TYPE_METHOD_CALL) or the one a signal is being
1418 * emitted from (for DBUS_MESSAGE_TYPE_SIGNAL).
1420 * @param message the message
1421 * @param object_path the path
1422 * @returns #FALSE if not enough memory
1425 dbus_message_set_path (DBusMessage *message,
1426 const char *object_path)
1428 _dbus_return_val_if_fail (message != NULL, FALSE);
1429 _dbus_return_val_if_fail (!message->locked, FALSE);
1431 if (object_path == NULL)
1433 delete_string_field (message, FIELD_PATH);
1438 return set_string_field (message,
1440 DBUS_TYPE_OBJECT_PATH,
1446 * Gets the object path this message is being sent to
1447 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1448 * from (for DBUS_MESSAGE_TYPE_SIGNAL).
1450 * @param message the message
1451 * @returns the path (should not be freed)
1454 dbus_message_get_path (DBusMessage *message)
1456 _dbus_return_val_if_fail (message != NULL, NULL);
1458 return get_string_field (message, FIELD_PATH, NULL);
1462 * Gets the object path this message is being sent to
1463 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1464 * from (for DBUS_MESSAGE_TYPE_SIGNAL) in a decomposed
1465 * format (one array element per path component).
1466 * Free the returned array with dbus_free_string_array().
1468 * An empty but non-NULL path array means the path "/".
1469 * So the path "/foo/bar" becomes { "foo", "bar", NULL }
1470 * and the path "/" becomes { NULL }.
1472 * @param message the message
1473 * @param path place to store allocated array of path components; #NULL set here if no path field exists
1474 * @returns #FALSE if no memory to allocate the array
1477 dbus_message_get_path_decomposed (DBusMessage *message,
1480 _dbus_return_val_if_fail (message != NULL, FALSE);
1481 _dbus_return_val_if_fail (path != NULL, FALSE);
1483 return get_path_field_decomposed (message, FIELD_PATH,
1488 * Sets the interface this message is being sent to
1489 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or
1490 * the interface a signal is being emitted from
1491 * (for DBUS_MESSAGE_TYPE_SIGNAL).
1493 * @param message the message
1494 * @param interface the interface
1495 * @returns #FALSE if not enough memory
1498 dbus_message_set_interface (DBusMessage *message,
1499 const char *interface)
1501 _dbus_return_val_if_fail (message != NULL, FALSE);
1502 _dbus_return_val_if_fail (!message->locked, FALSE);
1504 if (interface == NULL)
1506 delete_string_field (message, FIELD_INTERFACE);
1511 return set_string_field (message,
1519 * Gets the interface this message is being sent to
1520 * (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted
1521 * from (for DBUS_MESSAGE_TYPE_SIGNAL).
1522 * The interface name is fully-qualified (namespaced).
1524 * @param message the message
1525 * @returns the message interface (should not be freed)
1528 dbus_message_get_interface (DBusMessage *message)
1530 _dbus_return_val_if_fail (message != NULL, NULL);
1532 return get_string_field (message, FIELD_INTERFACE, NULL);
1536 * Sets the interface member being invoked
1537 * (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted
1538 * (DBUS_MESSAGE_TYPE_SIGNAL).
1539 * The interface name is fully-qualified (namespaced).
1541 * @param message the message
1542 * @param member the member
1543 * @returns #FALSE if not enough memory
1546 dbus_message_set_member (DBusMessage *message,
1549 _dbus_return_val_if_fail (message != NULL, FALSE);
1550 _dbus_return_val_if_fail (!message->locked, FALSE);
1554 delete_string_field (message, FIELD_MEMBER);
1559 return set_string_field (message,
1567 * Gets the interface member being invoked
1568 * (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted
1569 * (DBUS_MESSAGE_TYPE_SIGNAL).
1571 * @param message the message
1572 * @returns the member name (should not be freed)
1575 dbus_message_get_member (DBusMessage *message)
1577 _dbus_return_val_if_fail (message != NULL, NULL);
1579 return get_string_field (message, FIELD_MEMBER, NULL);
1583 * Sets the name of the error (DBUS_MESSAGE_TYPE_ERROR).
1584 * The name is fully-qualified (namespaced).
1586 * @param message the message
1587 * @param error_name the name
1588 * @returns #FALSE if not enough memory
1591 dbus_message_set_error_name (DBusMessage *message,
1592 const char *error_name)
1594 _dbus_return_val_if_fail (message != NULL, FALSE);
1595 _dbus_return_val_if_fail (!message->locked, FALSE);
1597 if (error_name == NULL)
1599 delete_string_field (message, FIELD_ERROR_NAME);
1604 return set_string_field (message,
1612 * Gets the error name (DBUS_MESSAGE_TYPE_ERROR only).
1614 * @param message the message
1615 * @returns the error name (should not be freed)
1618 dbus_message_get_error_name (DBusMessage *message)
1620 _dbus_return_val_if_fail (message != NULL, NULL);
1622 return get_string_field (message, FIELD_ERROR_NAME, NULL);
1626 * Sets the message's destination service.
1628 * @param message the message
1629 * @param destination the destination service name
1630 * @returns #FALSE if not enough memory
1633 dbus_message_set_destination (DBusMessage *message,
1634 const char *destination)
1636 _dbus_return_val_if_fail (message != NULL, FALSE);
1637 _dbus_return_val_if_fail (!message->locked, FALSE);
1639 if (destination == NULL)
1641 delete_string_field (message, FIELD_SERVICE);
1646 return set_string_field (message,
1654 * Gets the destination service of a message.
1656 * @param message the message
1657 * @returns the message destination service (should not be freed)
1660 dbus_message_get_destination (DBusMessage *message)
1662 _dbus_return_val_if_fail (message != NULL, NULL);
1664 return get_string_field (message, FIELD_SERVICE, NULL);
1668 * Appends fields to a message given a variable argument list. The
1669 * variable argument list should contain the type of the argument
1670 * followed by the value to add. Array values are specified by an int
1671 * typecode followed by a pointer to the array followed by an int
1672 * giving the length of the array. The argument list must be
1673 * terminated with #DBUS_TYPE_INVALID.
1675 * This function doesn't support dicts or non-fundamental arrays.
1677 * This function supports #DBUS_TYPE_INT64 and #DBUS_TYPE_UINT64
1678 * only if #DBUS_HAVE_INT64 is defined.
1680 * @param message the message
1681 * @param first_arg_type type of the first argument
1682 * @param ... value of first argument, list of additional type-value pairs
1683 * @returns #TRUE on success
1686 dbus_message_append_args (DBusMessage *message,
1693 _dbus_return_val_if_fail (message != NULL, FALSE);
1695 va_start (var_args, first_arg_type);
1696 retval = dbus_message_append_args_valist (message,
1705 * This function takes a va_list for use by language bindings.
1706 * It's otherwise the same as dbus_message_append_args().
1708 * @todo: Shouldn't this function clean up the changes to the message
1709 * on failures? (Yes)
1711 * @see dbus_message_append_args.
1712 * @param message the message
1713 * @param first_arg_type type of first argument
1714 * @param var_args value of first argument, then list of type/value pairs
1715 * @returns #TRUE on success
1718 dbus_message_append_args_valist (DBusMessage *message,
1723 DBusMessageIter iter;
1725 _dbus_return_val_if_fail (message != NULL, FALSE);
1727 old_len = _dbus_string_get_length (&message->body);
1729 type = first_arg_type;
1731 dbus_message_append_iter_init (message, &iter);
1738 if (!dbus_message_iter_append_nil (&iter))
1741 case DBUS_TYPE_BOOLEAN:
1742 if (!dbus_message_iter_append_boolean (&iter, va_arg (var_args, dbus_bool_t)))
1745 case DBUS_TYPE_INT32:
1746 if (!dbus_message_iter_append_int32 (&iter, va_arg (var_args, dbus_int32_t)))
1749 case DBUS_TYPE_UINT32:
1750 if (!dbus_message_iter_append_uint32 (&iter, va_arg (var_args, dbus_uint32_t)))
1753 #ifdef DBUS_HAVE_INT64
1754 case DBUS_TYPE_INT64:
1755 if (!dbus_message_iter_append_int64 (&iter, va_arg (var_args, dbus_int64_t)))
1758 case DBUS_TYPE_UINT64:
1759 if (!dbus_message_iter_append_uint64 (&iter, va_arg (var_args, dbus_uint64_t)))
1762 #endif /* DBUS_HAVE_INT64 */
1763 case DBUS_TYPE_DOUBLE:
1764 if (!dbus_message_iter_append_double (&iter, va_arg (var_args, double)))
1767 case DBUS_TYPE_STRING:
1768 if (!dbus_message_iter_append_string (&iter, va_arg (var_args, const char *)))
1771 case DBUS_TYPE_NAMED:
1774 unsigned char *data;
1777 name = va_arg (var_args, const char *);
1778 data = va_arg (var_args, unsigned char *);
1779 len = va_arg (var_args, int);
1781 if (!dbus_message_iter_append_named (&iter, name, data, len))
1785 case DBUS_TYPE_ARRAY:
1790 type = va_arg (var_args, int);
1791 data = va_arg (var_args, void *);
1792 len = va_arg (var_args, int);
1796 case DBUS_TYPE_BYTE:
1797 if (!dbus_message_iter_append_byte_array (&iter, (unsigned char *)data, len))
1800 case DBUS_TYPE_BOOLEAN:
1801 if (!dbus_message_iter_append_boolean_array (&iter, (unsigned char *)data, len))
1804 case DBUS_TYPE_INT32:
1805 if (!dbus_message_iter_append_int32_array (&iter, (dbus_int32_t *)data, len))
1808 case DBUS_TYPE_UINT32:
1809 if (!dbus_message_iter_append_uint32_array (&iter, (dbus_uint32_t *)data, len))
1812 #ifdef DBUS_HAVE_INT64
1813 case DBUS_TYPE_INT64:
1814 if (!dbus_message_iter_append_int64_array (&iter, (dbus_int64_t *)data, len))
1817 case DBUS_TYPE_UINT64:
1818 if (!dbus_message_iter_append_uint64_array (&iter, (dbus_uint64_t *)data, len))
1821 #endif /* DBUS_HAVE_INT64 */
1822 case DBUS_TYPE_DOUBLE:
1823 if (!dbus_message_iter_append_double_array (&iter, (double *)data, len))
1826 case DBUS_TYPE_STRING:
1827 if (!dbus_message_iter_append_string_array (&iter, (const char **)data, len))
1831 case DBUS_TYPE_ARRAY:
1832 case DBUS_TYPE_NAMED:
1833 case DBUS_TYPE_DICT:
1834 _dbus_warn ("dbus_message_append_args_valist doesn't support recursive arrays\n");
1837 _dbus_warn ("Unknown field type %d\n", type);
1843 case DBUS_TYPE_DICT:
1844 _dbus_warn ("dbus_message_append_args_valist doesn't support dicts\n");
1847 _dbus_warn ("Unknown field type %d\n", type);
1851 type = va_arg (var_args, int);
1862 * Gets arguments from a message given a variable argument list.
1863 * The variable argument list should contain the type of the
1864 * argumen followed by a pointer to where the value should be
1865 * stored. The list is terminated with #DBUS_TYPE_INVALID.
1867 * @param message the message
1868 * @param error error to be filled in on failure
1869 * @param first_arg_type the first argument type
1870 * @param ... location for first argument value, then list of type-location pairs
1871 * @returns #FALSE if the error was set
1874 dbus_message_get_args (DBusMessage *message,
1882 _dbus_return_val_if_fail (message != NULL, FALSE);
1883 _dbus_return_val_if_error_is_set (error, FALSE);
1885 va_start (var_args, first_arg_type);
1886 retval = dbus_message_get_args_valist (message, error, first_arg_type, var_args);
1893 * This function takes a va_list for use by language bindings
1895 * @todo We need to free the argument data when an error occurs.
1897 * @see dbus_message_get_args
1898 * @param message the message
1899 * @param error error to be filled in
1900 * @param first_arg_type type of the first argument
1901 * @param var_args return location for first argument, followed by list of type/location pairs
1902 * @returns #FALSE if error was set
1905 dbus_message_get_args_valist (DBusMessage *message,
1910 DBusMessageIter iter;
1912 _dbus_return_val_if_fail (message != NULL, FALSE);
1913 _dbus_return_val_if_error_is_set (error, FALSE);
1915 dbus_message_iter_init (message, &iter);
1916 return dbus_message_iter_get_args_valist (&iter, error, first_arg_type, var_args);
1920 * Gets arguments from a message iterator given a variable argument list.
1921 * The variable argument list should contain the type of the
1922 * argumen followed by a pointer to where the value should be
1923 * stored. The list is terminated with 0.
1925 * @param iter the message iterator
1926 * @param error error to be filled in on failure
1927 * @param first_arg_type the first argument type
1928 * @param ... location for first argument value, then list of type-location pairs
1929 * @returns #FALSE if the error was set
1932 dbus_message_iter_get_args (DBusMessageIter *iter,
1940 _dbus_return_val_if_fail (iter != NULL, FALSE);
1941 _dbus_return_val_if_error_is_set (error, FALSE);
1943 va_start (var_args, first_arg_type);
1944 retval = dbus_message_iter_get_args_valist (iter, error, first_arg_type, var_args);
1951 * This function takes a va_list for use by language bindings
1953 * This function supports #DBUS_TYPE_INT64 and #DBUS_TYPE_UINT64
1954 * only if #DBUS_HAVE_INT64 is defined.
1956 * @todo this function (or some lower-level non-convenience function)
1957 * needs better error handling; should allow the application to
1958 * distinguish between out of memory, and bad data from the remote
1959 * app. It also needs to not leak a bunch of args when it gets
1960 * to the arg that's bad, as that would be a security hole
1961 * (allow one app to force another to leak memory)
1963 * @todo We need to free the argument data when an error occurs.
1965 * @see dbus_message_get_args
1966 * @param iter the message iter
1967 * @param error error to be filled in
1968 * @param first_arg_type type of the first argument
1969 * @param var_args return location for first argument, followed by list of type/location pairs
1970 * @returns #FALSE if error was set
1973 dbus_message_iter_get_args_valist (DBusMessageIter *iter,
1978 int spec_type, msg_type, i;
1981 _dbus_return_val_if_fail (iter != NULL, FALSE);
1982 _dbus_return_val_if_error_is_set (error, FALSE);
1986 spec_type = first_arg_type;
1989 while (spec_type != 0)
1991 msg_type = dbus_message_iter_get_arg_type (iter);
1993 if (msg_type != spec_type)
1995 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1996 "Argument %d is specified to be of type \"%s\", but "
1997 "is actually of type \"%s\"\n", i,
1998 _dbus_type_to_string (spec_type),
1999 _dbus_type_to_string (msg_type));
2008 case DBUS_TYPE_BYTE:
2012 ptr = va_arg (var_args, unsigned char *);
2014 *ptr = dbus_message_iter_get_byte (iter);
2017 case DBUS_TYPE_BOOLEAN:
2021 ptr = va_arg (var_args, dbus_bool_t *);
2023 *ptr = dbus_message_iter_get_boolean (iter);
2026 case DBUS_TYPE_INT32:
2030 ptr = va_arg (var_args, dbus_int32_t *);
2032 *ptr = dbus_message_iter_get_int32 (iter);
2035 case DBUS_TYPE_UINT32:
2039 ptr = va_arg (var_args, dbus_uint32_t *);
2041 *ptr = dbus_message_iter_get_uint32 (iter);
2044 #ifdef DBUS_HAVE_INT64
2045 case DBUS_TYPE_INT64:
2049 ptr = va_arg (var_args, dbus_int64_t *);
2051 *ptr = dbus_message_iter_get_int64 (iter);
2054 case DBUS_TYPE_UINT64:
2058 ptr = va_arg (var_args, dbus_uint64_t *);
2060 *ptr = dbus_message_iter_get_uint64 (iter);
2063 #endif /* DBUS_HAVE_INT64 */
2065 case DBUS_TYPE_DOUBLE:
2069 ptr = va_arg (var_args, double *);
2071 *ptr = dbus_message_iter_get_double (iter);
2075 case DBUS_TYPE_STRING:
2079 ptr = va_arg (var_args, char **);
2081 *ptr = dbus_message_iter_get_string (iter);
2085 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2092 case DBUS_TYPE_NAMED:
2095 unsigned char **data;
2098 name = va_arg (var_args, char **);
2099 data = va_arg (var_args, unsigned char **);
2100 len = va_arg (var_args, int *);
2102 if (!dbus_message_iter_get_named (iter, name, data, len))
2104 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2109 case DBUS_TYPE_ARRAY:
2114 type = va_arg (var_args, int);
2115 data = va_arg (var_args, void *);
2116 len = va_arg (var_args, int *);
2118 if (dbus_message_iter_get_array_type (iter) != type)
2120 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
2121 "Argument %d is specified to be of type \"array of %s\", but "
2122 "is actually of type \"array of %s\"\n", i,
2123 _dbus_type_to_string (type),
2124 _dbus_type_to_string (dbus_message_iter_get_array_type (iter)));
2130 case DBUS_TYPE_BYTE:
2131 if (!dbus_message_iter_get_byte_array (iter, (unsigned char **)data, len))
2133 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2137 case DBUS_TYPE_BOOLEAN:
2138 if (!dbus_message_iter_get_boolean_array (iter, (unsigned char **)data, len))
2140 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2144 case DBUS_TYPE_INT32:
2145 if (!dbus_message_iter_get_int32_array (iter, (dbus_int32_t **)data, len))
2147 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2151 case DBUS_TYPE_UINT32:
2152 if (!dbus_message_iter_get_uint32_array (iter, (dbus_uint32_t **)data, len))
2154 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2158 #ifdef DBUS_HAVE_INT64
2159 case DBUS_TYPE_INT64:
2160 if (!dbus_message_iter_get_int64_array (iter, (dbus_int64_t **)data, len))
2162 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2166 case DBUS_TYPE_UINT64:
2167 if (!dbus_message_iter_get_uint64_array (iter, (dbus_uint64_t **)data, len))
2169 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2173 #endif /* DBUS_HAVE_INT64 */
2174 case DBUS_TYPE_DOUBLE:
2175 if (!dbus_message_iter_get_double_array (iter, (double **)data, len))
2177 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2181 case DBUS_TYPE_STRING:
2182 if (!dbus_message_iter_get_string_array (iter, (char ***)data, len))
2184 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2189 case DBUS_TYPE_ARRAY:
2190 case DBUS_TYPE_NAMED:
2191 case DBUS_TYPE_DICT:
2192 _dbus_warn ("dbus_message_get_args_valist doesn't support recursive arrays\n");
2193 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2196 _dbus_warn ("Unknown field type %d\n", type);
2197 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2202 case DBUS_TYPE_DICT:
2203 _dbus_warn ("dbus_message_get_args_valist doesn't support dicts\n");
2204 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2207 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
2208 _dbus_warn ("Unknown field type %d\n", spec_type);
2212 spec_type = va_arg (var_args, int);
2213 if (spec_type != 0 && !dbus_message_iter_next (iter))
2215 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
2216 "Message has only %d arguments, but more were expected", i);
2232 * Initializes a DBusMessageIter representing the arguments of the
2233 * message passed in.
2235 * @param message the message
2236 * @param iter pointer to an iterator to initialize
2239 dbus_message_iter_init (DBusMessage *message,
2240 DBusMessageIter *iter)
2242 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2244 _dbus_return_if_fail (message != NULL);
2245 _dbus_return_if_fail (iter != NULL);
2247 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
2249 real->message = message;
2250 real->parent_iter = NULL;
2251 real->changed_stamp = message->changed_stamp;
2253 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
2255 real->end = _dbus_string_get_length (&message->body);
2257 real->container_start = 0;
2258 real->container_length_pos = 0;
2259 real->wrote_dict_key = 0;
2260 real->array_type_pos = 0;
2263 #ifndef DBUS_DISABLE_CHECKS
2265 dbus_message_iter_check (DBusMessageRealIter *iter)
2269 _dbus_warn ("dbus iterator check failed: iterator is NULL\n");
2273 if (iter->changed_stamp != iter->message->changed_stamp)
2275 _dbus_warn ("dbus iterator check failed: invalid iterator, must re-initialize it after modifying the message\n");
2279 if (iter->pos < 0 || iter->pos > iter->end)
2281 _dbus_warn ("dbus iterator check failed: invalid position\n");
2287 #endif /* DBUS_DISABLE_CHECKS */
2290 skip_array_type (DBusMessageRealIter *iter, int pos)
2296 data = _dbus_string_get_const_data_len (&iter->message->body,
2299 while (*data == DBUS_TYPE_ARRAY);
2305 dbus_message_iter_get_data_start (DBusMessageRealIter *iter, int *type)
2312 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2313 data = _dbus_string_get_const_data_len (&iter->message->body,
2315 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
2318 *type = DBUS_TYPE_INVALID;
2320 return skip_array_type (iter, iter->pos);
2322 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2323 data = _dbus_string_get_const_data_len (&iter->message->body,
2324 iter->array_type_pos, 1);
2325 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
2328 *type = DBUS_TYPE_INVALID;
2332 case DBUS_MESSAGE_ITER_TYPE_DICT:
2333 /* Get the length of the string */
2334 len = _dbus_demarshal_uint32 (&iter->message->body,
2335 iter->message->byte_order,
2337 pos = pos + len + 1;
2339 data = _dbus_string_get_const_data_len (&iter->message->body,
2341 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
2344 *type = DBUS_TYPE_INVALID;
2346 return skip_array_type (iter, pos);
2349 _dbus_assert_not_reached ("Invalid iter type");
2352 *type = DBUS_TYPE_INVALID;
2358 * Checks if an iterator has any more fields.
2360 * @param iter the message iter
2361 * @returns #TRUE if there are more fields
2365 dbus_message_iter_has_next (DBusMessageIter *iter)
2367 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2371 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2373 if (real->pos >= real->end)
2376 pos = dbus_message_iter_get_data_start (real, &type);
2378 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
2379 real->message->byte_order,
2380 type, pos, &end_pos))
2383 if (end_pos >= real->end)
2390 * Moves the iterator to the next field.
2392 * @param iter The message iter
2393 * @returns #TRUE if the iterator was moved to the next field
2396 dbus_message_iter_next (DBusMessageIter *iter)
2398 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2402 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2404 pos = dbus_message_iter_get_data_start (real, &type);
2406 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
2407 real->message->byte_order,
2408 type, pos, &end_pos))
2411 if (end_pos >= real->end)
2414 real->pos = end_pos;
2420 * Returns the argument type of the argument that the
2421 * message iterator points at.
2423 * @param iter the message iter
2424 * @returns the field type
2427 dbus_message_iter_get_arg_type (DBusMessageIter *iter)
2429 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2432 _dbus_return_val_if_fail (dbus_message_iter_check (real), DBUS_TYPE_INVALID);
2434 if (real->pos >= real->end)
2435 return DBUS_TYPE_INVALID;
2437 pos = dbus_message_iter_get_data_start (real, &type);
2443 iter_get_array_type (DBusMessageRealIter *iter, int *array_type_pos)
2446 int _array_type_pos;
2451 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2452 _array_type_pos = iter->pos + 1;
2454 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2455 _array_type_pos = iter->array_type_pos + 1;
2457 case DBUS_MESSAGE_ITER_TYPE_DICT:
2458 /* Get the length of the string */
2459 len = _dbus_demarshal_uint32 (&iter->message->body,
2460 iter->message->byte_order,
2462 pos = pos + len + 1;
2463 data = _dbus_string_get_const_data_len (&iter->message->body,
2465 _array_type_pos = pos + 1;
2468 _dbus_assert_not_reached ("wrong iter type");
2469 return DBUS_TYPE_INVALID;
2472 if (array_type_pos != NULL)
2473 *array_type_pos = _array_type_pos;
2475 data = _dbus_string_get_const_data_len (&iter->message->body,
2476 _array_type_pos, 1);
2477 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
2480 return DBUS_TYPE_INVALID;
2485 * Returns the element type of the array that the
2486 * message iterator points at. Note that you need
2487 * to check that the iterator points to an array
2488 * prior to using this function.
2490 * @param iter the message iter
2491 * @returns the field type
2494 dbus_message_iter_get_array_type (DBusMessageIter *iter)
2496 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2499 _dbus_return_val_if_fail (dbus_message_iter_check (real), DBUS_TYPE_INVALID);
2501 if (real->pos >= real->end)
2502 return DBUS_TYPE_INVALID;
2504 pos = dbus_message_iter_get_data_start (real, &type);
2506 _dbus_assert (type == DBUS_TYPE_ARRAY);
2508 return iter_get_array_type (real, NULL);
2513 * Returns the string value that an iterator may point to.
2514 * Note that you need to check that the iterator points to
2515 * a string value before using this function.
2517 * @see dbus_message_iter_get_arg_type
2518 * @param iter the message iter
2519 * @returns the string
2522 dbus_message_iter_get_string (DBusMessageIter *iter)
2524 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2527 _dbus_return_val_if_fail (dbus_message_iter_check (real), NULL);
2529 pos = dbus_message_iter_get_data_start (real, &type);
2531 _dbus_assert (type == DBUS_TYPE_STRING);
2533 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2538 * Returns the name and data from a named type that an
2539 * iterator may point to. Note that you need to check that
2540 * the iterator points to a named type before using this
2543 * @see dbus_message_iter_get_arg_type
2544 * @param iter the message iter
2545 * @param name return location for the name
2546 * @param value return location for data
2547 * @param len return location for length of data
2548 * @returns TRUE if get succeed
2552 dbus_message_iter_get_named (DBusMessageIter *iter,
2554 unsigned char **value,
2557 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2561 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2563 pos = dbus_message_iter_get_data_start (real, &type);
2565 _dbus_assert (type == DBUS_TYPE_NAMED);
2567 _name = _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2573 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2574 pos + 1, NULL, value, len))
2586 * Returns the byte value that an iterator may point to.
2587 * Note that you need to check that the iterator points to
2588 * a byte value before using this function.
2590 * @see dbus_message_iter_get_arg_type
2591 * @param iter the message iter
2592 * @returns the byte value
2595 dbus_message_iter_get_byte (DBusMessageIter *iter)
2597 unsigned char value;
2598 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2601 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2603 pos = dbus_message_iter_get_data_start (real, &type);
2605 _dbus_assert (type == DBUS_TYPE_BYTE);
2607 value = _dbus_string_get_byte (&real->message->body, pos);
2614 * Returns the boolean value that an iterator may point to.
2615 * Note that you need to check that the iterator points to
2616 * a boolean value before using this function.
2618 * @see dbus_message_iter_get_arg_type
2619 * @param iter the message iter
2620 * @returns the boolean value
2623 dbus_message_iter_get_boolean (DBusMessageIter *iter)
2625 unsigned char value;
2626 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2629 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2631 pos = dbus_message_iter_get_data_start (real, &type);
2633 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2635 value = _dbus_string_get_byte (&real->message->body, pos);
2641 * Returns the 32 bit signed integer value that an iterator may point to.
2642 * Note that you need to check that the iterator points to
2643 * a 32-bit integer value before using this function.
2645 * @see dbus_message_iter_get_arg_type
2646 * @param iter the message iter
2647 * @returns the integer
2650 dbus_message_iter_get_int32 (DBusMessageIter *iter)
2652 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2655 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2657 pos = dbus_message_iter_get_data_start (real, &type);
2659 _dbus_assert (type == DBUS_TYPE_INT32);
2661 return _dbus_demarshal_int32 (&real->message->body, real->message->byte_order,
2666 * Returns the 32 bit unsigned integer value that an iterator may point to.
2667 * Note that you need to check that the iterator points to
2668 * a 32-bit unsigned integer value before using this function.
2670 * @see dbus_message_iter_get_arg_type
2671 * @param iter the message iter
2672 * @returns the integer
2675 dbus_message_iter_get_uint32 (DBusMessageIter *iter)
2677 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2680 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2682 pos = dbus_message_iter_get_data_start (real, &type);
2684 _dbus_assert (type == DBUS_TYPE_UINT32);
2686 return _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2690 #ifdef DBUS_HAVE_INT64
2693 * Returns the 64 bit signed integer value that an iterator may point
2694 * to. Note that you need to check that the iterator points to a
2695 * 64-bit integer value before using this function.
2697 * This function only exists if #DBUS_HAVE_INT64 is defined.
2699 * @see dbus_message_iter_get_arg_type
2700 * @param iter the message iter
2701 * @returns the integer
2704 dbus_message_iter_get_int64 (DBusMessageIter *iter)
2706 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2709 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2711 pos = dbus_message_iter_get_data_start (real, &type);
2713 _dbus_assert (type == DBUS_TYPE_INT64);
2715 return _dbus_demarshal_int64 (&real->message->body, real->message->byte_order,
2720 * Returns the 64 bit unsigned integer value that an iterator may point to.
2721 * Note that you need to check that the iterator points to
2722 * a 64-bit unsigned integer value before using this function.
2724 * This function only exists if #DBUS_HAVE_INT64 is defined.
2726 * @see dbus_message_iter_get_arg_type
2727 * @param iter the message iter
2728 * @returns the integer
2731 dbus_message_iter_get_uint64 (DBusMessageIter *iter)
2733 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2736 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0);
2738 pos = dbus_message_iter_get_data_start (real, &type);
2740 _dbus_assert (type == DBUS_TYPE_UINT64);
2742 return _dbus_demarshal_uint64 (&real->message->body, real->message->byte_order,
2746 #endif /* DBUS_HAVE_INT64 */
2749 * Returns the double value that an iterator may point to.
2750 * Note that you need to check that the iterator points to
2751 * a string value before using this function.
2753 * @see dbus_message_iter_get_arg_type
2754 * @param iter the message iter
2755 * @returns the double
2758 dbus_message_iter_get_double (DBusMessageIter *iter)
2760 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2763 _dbus_return_val_if_fail (dbus_message_iter_check (real), 0.0);
2765 pos = dbus_message_iter_get_data_start (real, &type);
2767 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2769 return _dbus_demarshal_double (&real->message->body, real->message->byte_order,
2774 * Initializes an iterator for the array that the iterator
2775 * may point to. Note that you need to check that the iterator
2776 * points to an array prior to using this function.
2778 * The array element type is returned in array_type, and the array
2779 * iterator can only be used to get that type of data.
2781 * @param iter the iterator
2782 * @param array_iter pointer to an iterator to initialize
2783 * @param array_type gets set to the type of the array elements
2784 * @returns #TRUE on success
2787 dbus_message_iter_init_array_iterator (DBusMessageIter *iter,
2788 DBusMessageIter *array_iter,
2791 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2792 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2793 int type, pos, len_pos, len, array_type_pos;
2796 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2798 pos = dbus_message_iter_get_data_start (real, &type);
2800 _dbus_assert (type == DBUS_TYPE_ARRAY);
2802 _array_type = iter_get_array_type (real, &array_type_pos);
2804 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2805 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2808 array_real->parent_iter = real;
2809 array_real->message = real->message;
2810 array_real->changed_stamp = real->message->changed_stamp;
2812 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2813 array_real->pos = pos;
2814 array_real->end = pos + len;
2816 array_real->container_start = pos;
2817 array_real->container_length_pos = len_pos;
2818 array_real->wrote_dict_key = 0;
2819 array_real->array_type_pos = array_type_pos;
2820 array_real->array_type_done = TRUE;
2822 if (array_type != NULL)
2823 *array_type = _array_type;
2830 * Initializes an iterator for the dict that the iterator
2831 * may point to. Note that you need to check that the iterator
2832 * points to a dict prior to using this function.
2834 * @param iter the iterator
2835 * @param dict_iter pointer to an iterator to initialize
2836 * @returns #TRUE on success
2839 dbus_message_iter_init_dict_iterator (DBusMessageIter *iter,
2840 DBusMessageIter *dict_iter)
2842 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2843 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
2844 int type, pos, len_pos, len;
2846 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2848 pos = dbus_message_iter_get_data_start (real, &type);
2850 _dbus_assert (type == DBUS_TYPE_DICT);
2852 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2853 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2856 dict_real->parent_iter = real;
2857 dict_real->message = real->message;
2858 dict_real->changed_stamp = real->message->changed_stamp;
2860 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
2861 dict_real->pos = pos;
2862 dict_real->end = pos + len;
2864 dict_real->container_start = pos;
2865 dict_real->container_length_pos = len_pos;
2866 dict_real->wrote_dict_key = 0;
2872 * Returns the byte array that the iterator may point to.
2873 * Note that you need to check that the iterator points
2874 * to a byte array prior to using this function.
2876 * @param iter the iterator
2877 * @param value return location for array values
2878 * @param len return location for length of byte array
2879 * @returns #TRUE on success
2882 dbus_message_iter_get_byte_array (DBusMessageIter *iter,
2883 unsigned char **value,
2886 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2889 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2891 pos = dbus_message_iter_get_data_start (real, &type);
2893 _dbus_assert (type == DBUS_TYPE_ARRAY);
2895 type = iter_get_array_type (real, NULL);
2897 _dbus_assert (type == DBUS_TYPE_BYTE);
2899 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2900 pos, NULL, value, len))
2907 * Returns the boolean array that the iterator may point to. Note that
2908 * you need to check that the iterator points to an array of the
2909 * correct type prior to using this function.
2911 * @param iter the iterator
2912 * @param value return location for the array
2913 * @param len return location for the array length
2914 * @returns #TRUE on success
2917 dbus_message_iter_get_boolean_array (DBusMessageIter *iter,
2918 unsigned char **value,
2921 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2924 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2926 pos = dbus_message_iter_get_data_start (real, &type);
2928 _dbus_assert (type == DBUS_TYPE_ARRAY);
2930 type = iter_get_array_type (real, NULL);
2932 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2934 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2935 pos, NULL, value, len))
2942 * Returns the 32 bit signed integer array that the iterator may point
2943 * to. Note that you need to check that the iterator points to an
2944 * array of the correct type prior to using this function.
2946 * @param iter the iterator
2947 * @param value return location for the array
2948 * @param len return location for the array length
2949 * @returns #TRUE on success
2952 dbus_message_iter_get_int32_array (DBusMessageIter *iter,
2953 dbus_int32_t **value,
2956 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2959 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2961 pos = dbus_message_iter_get_data_start (real, &type);
2963 _dbus_assert (type == DBUS_TYPE_ARRAY);
2965 type = iter_get_array_type (real, NULL);
2967 _dbus_assert (type == DBUS_TYPE_INT32);
2969 if (!_dbus_demarshal_int32_array (&real->message->body, real->message->byte_order,
2970 pos, NULL, value, len))
2977 * Returns the 32 bit unsigned integer array that the iterator may point
2978 * to. Note that you need to check that the iterator points to an
2979 * array of the correct type prior to using this function.
2981 * @param iter the iterator
2982 * @param value return location for the array
2983 * @param len return location for the array length
2984 * @returns #TRUE on success
2987 dbus_message_iter_get_uint32_array (DBusMessageIter *iter,
2988 dbus_uint32_t **value,
2991 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2994 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
2996 pos = dbus_message_iter_get_data_start (real, &type);
2998 _dbus_assert (type == DBUS_TYPE_ARRAY);
3000 type = iter_get_array_type (real, NULL);
3001 _dbus_assert (type == DBUS_TYPE_UINT32);
3003 if (!_dbus_demarshal_uint32_array (&real->message->body, real->message->byte_order,
3004 pos, NULL, value, len))
3010 #ifdef DBUS_HAVE_INT64
3013 * Returns the 64 bit signed integer array that the iterator may point
3014 * to. Note that you need to check that the iterator points to an
3015 * array of the correct type prior to using this function.
3017 * This function only exists if #DBUS_HAVE_INT64 is defined.
3019 * @param iter the iterator
3020 * @param value return location for the array
3021 * @param len return location for the array length
3022 * @returns #TRUE on success
3025 dbus_message_iter_get_int64_array (DBusMessageIter *iter,
3026 dbus_int64_t **value,
3029 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3032 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3034 pos = dbus_message_iter_get_data_start (real, &type);
3036 _dbus_assert (type == DBUS_TYPE_ARRAY);
3038 type = iter_get_array_type (real, NULL);
3040 _dbus_assert (type == DBUS_TYPE_INT64);
3042 if (!_dbus_demarshal_int64_array (&real->message->body, real->message->byte_order,
3043 pos, NULL, value, len))
3050 * Returns the 64 bit unsigned integer array that the iterator may point
3051 * to. Note that you need to check that the iterator points to an
3052 * array of the correct type prior to using this function.
3054 * This function only exists if #DBUS_HAVE_INT64 is defined.
3056 * @param iter the iterator
3057 * @param value return location for the array
3058 * @param len return location for the array length
3059 * @returns #TRUE on success
3062 dbus_message_iter_get_uint64_array (DBusMessageIter *iter,
3063 dbus_uint64_t **value,
3066 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3069 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3071 pos = dbus_message_iter_get_data_start (real, &type);
3073 _dbus_assert (type == DBUS_TYPE_ARRAY);
3075 type = iter_get_array_type (real, NULL);
3076 _dbus_assert (type == DBUS_TYPE_UINT64);
3078 if (!_dbus_demarshal_uint64_array (&real->message->body, real->message->byte_order,
3079 pos, NULL, value, len))
3085 #endif /* DBUS_HAVE_INT64 */
3088 * Returns the double array that the iterator may point to. Note that
3089 * you need to check that the iterator points to an array of the
3090 * correct type prior to using this function.
3092 * @param iter the iterator
3093 * @param value return location for the array
3094 * @param len return location for the array length
3095 * @returns #TRUE on success
3098 dbus_message_iter_get_double_array (DBusMessageIter *iter,
3102 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3105 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3107 pos = dbus_message_iter_get_data_start (real, &type);
3109 _dbus_assert (type == DBUS_TYPE_ARRAY);
3111 type = iter_get_array_type (real, NULL);
3112 _dbus_assert (type == DBUS_TYPE_DOUBLE);
3114 if (!_dbus_demarshal_double_array (&real->message->body, real->message->byte_order,
3115 pos, NULL, value, len))
3122 * Returns the string array that the iterator may point to.
3123 * Note that you need to check that the iterator points
3124 * to a byte array prior to using this function.
3126 * The returned value is a #NULL-terminated array of strings.
3127 * Each string is a separate malloc block, and the array
3128 * itself is a malloc block. You can free this type of
3129 * string array with dbus_free_string_array().
3131 * @param iter the iterator
3132 * @param value return location for string values
3133 * @param len return location for length of byte array
3134 * @returns #TRUE on success
3137 dbus_message_iter_get_string_array (DBusMessageIter *iter,
3141 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3144 _dbus_return_val_if_fail (dbus_message_iter_check (real), FALSE);
3146 pos = dbus_message_iter_get_data_start (real, &type);
3148 _dbus_assert (type == DBUS_TYPE_ARRAY);
3150 type = iter_get_array_type (real, NULL);
3151 _dbus_assert (type == DBUS_TYPE_STRING);
3153 if (!_dbus_demarshal_string_array (&real->message->body, real->message->byte_order,
3154 pos, NULL, value, len))
3161 * Returns the key name fot the dict entry that an iterator
3162 * may point to. Note that you need to check that the iterator
3163 * points to a dict entry before using this function.
3165 * @see dbus_message_iter_init_dict_iterator
3166 * @param iter the message iter
3167 * @returns the key name
3170 dbus_message_iter_get_dict_key (DBusMessageIter *iter)
3172 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3174 _dbus_return_val_if_fail (dbus_message_iter_check (real), NULL);
3176 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
3178 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
3183 * Initializes a DBusMessageIter pointing to the end of the
3184 * message. This iterator can be used to append data to the
3187 * @param message the message
3188 * @param iter pointer to an iterator to initialize
3191 dbus_message_append_iter_init (DBusMessage *message,
3192 DBusMessageIter *iter)
3194 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3196 _dbus_return_if_fail (message != NULL);
3197 _dbus_return_if_fail (iter != NULL);
3199 real->message = message;
3200 real->parent_iter = NULL;
3201 real->changed_stamp = message->changed_stamp;
3203 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
3204 real->end = _dbus_string_get_length (&real->message->body);
3205 real->pos = real->end;
3207 real->container_length_pos = 0;
3208 real->wrote_dict_key = 0;
3211 #ifndef DBUS_DISABLE_CHECKS
3213 dbus_message_iter_append_check (DBusMessageRealIter *iter)
3217 _dbus_warn ("dbus iterator check failed: NULL iterator\n");
3221 if (iter->message->locked)
3223 _dbus_warn ("dbus iterator check failed: message is locked (has already been sent)\n");
3227 if (iter->changed_stamp != iter->message->changed_stamp)
3229 _dbus_warn ("dbus iterator check failed: invalid iterator, must re-initialize it after modifying the message");
3233 if (iter->pos != iter->end)
3235 _dbus_warn ("dbus iterator check failed: can only append at end of message");
3239 if (iter->pos != _dbus_string_get_length (&iter->message->body))
3241 _dbus_warn ("dbus iterator check failed: append pos not at end of message string");
3247 #endif /* DBUS_DISABLE_CHECKS */
3250 dbus_message_iter_append_type (DBusMessageRealIter *iter,
3256 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
3257 if (!_dbus_string_append_byte (&iter->message->body, type))
3261 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
3262 data = _dbus_string_get_const_data_len (&iter->message->body,
3263 iter->array_type_pos, 1);
3266 _dbus_warn ("Appended element of wrong type for array\n");
3271 case DBUS_MESSAGE_ITER_TYPE_DICT:
3272 if (!iter->wrote_dict_key)
3274 _dbus_warn ("Appending dict data before key name\n");
3278 if (!_dbus_string_append_byte (&iter->message->body, type))
3284 _dbus_assert_not_reached ("Invalid iter type");
3292 dbus_message_iter_update_after_change (DBusMessageRealIter *iter)
3294 iter->changed_stamp = iter->message->changed_stamp;
3296 /* Set new end of iter */
3297 iter->end = _dbus_string_get_length (&iter->message->body);
3298 iter->pos = iter->end;
3300 /* Set container length */
3301 if (iter->type == DBUS_MESSAGE_ITER_TYPE_DICT ||
3302 (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY && iter->array_type_done))
3303 _dbus_marshal_set_uint32 (&iter->message->body,
3304 iter->message->byte_order,
3305 iter->container_length_pos,
3306 iter->end - iter->container_start);
3308 if (iter->parent_iter)
3309 dbus_message_iter_update_after_change (iter->parent_iter);
3313 dbus_message_iter_append_done (DBusMessageRealIter *iter)
3315 iter->message->changed_stamp++;
3316 dbus_message_iter_update_after_change (iter);
3317 iter->wrote_dict_key = FALSE;
3321 * Appends a nil value to the message
3323 * @param iter an iterator pointing to the end of the message
3324 * @returns #TRUE on success
3327 dbus_message_iter_append_nil (DBusMessageIter *iter)
3329 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3331 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3333 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NIL))
3336 dbus_message_iter_append_done (real);
3342 * Appends a boolean value to the message
3344 * @param iter an iterator pointing to the end of the message
3345 * @param value the boolean value
3346 * @returns #TRUE on success
3349 dbus_message_iter_append_boolean (DBusMessageIter *iter,
3352 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3354 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3356 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BOOLEAN))
3359 if (!_dbus_string_append_byte (&real->message->body, (value != FALSE)))
3361 _dbus_string_set_length (&real->message->body, real->pos);
3365 dbus_message_iter_append_done (real);
3371 * Appends a byte to the message
3373 * @param iter an iterator pointing to the end of the message
3374 * @param value the byte value
3375 * @returns #TRUE on success
3378 dbus_message_iter_append_byte (DBusMessageIter *iter,
3379 unsigned char value)
3381 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3383 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3385 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BYTE))
3388 if (!_dbus_string_append_byte (&real->message->body, value))
3390 _dbus_string_set_length (&real->message->body, real->pos);
3394 dbus_message_iter_append_done (real);
3401 * Appends a 32 bit signed integer to the message.
3403 * @param iter an iterator pointing to the end of the message
3404 * @param value the integer value
3405 * @returns #TRUE on success
3408 dbus_message_iter_append_int32 (DBusMessageIter *iter,
3411 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3413 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3415 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT32))
3418 if (!_dbus_marshal_int32 (&real->message->body, real->message->byte_order, value))
3420 _dbus_string_set_length (&real->message->body, real->pos);
3424 dbus_message_iter_append_done (real);
3430 * Appends a 32 bit unsigned integer to the message.
3432 * @param iter an iterator pointing to the end of the message
3433 * @param value the integer value
3434 * @returns #TRUE on success
3437 dbus_message_iter_append_uint32 (DBusMessageIter *iter,
3438 dbus_uint32_t value)
3440 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3442 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3444 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT32))
3447 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, value))
3449 _dbus_string_set_length (&real->message->body, real->pos);
3453 dbus_message_iter_append_done (real);
3458 #ifdef DBUS_HAVE_INT64
3461 * Appends a 64 bit signed integer to the message.
3463 * This function only exists if #DBUS_HAVE_INT64 is defined.
3465 * @param iter an iterator pointing to the end of the message
3466 * @param value the integer value
3467 * @returns #TRUE on success
3470 dbus_message_iter_append_int64 (DBusMessageIter *iter,
3473 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3475 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3477 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT64))
3480 if (!_dbus_marshal_int64 (&real->message->body, real->message->byte_order, value))
3482 _dbus_string_set_length (&real->message->body, real->pos);
3486 dbus_message_iter_append_done (real);
3492 * Appends a 64 bit unsigned integer to the message.
3494 * This function only exists if #DBUS_HAVE_INT64 is defined.
3496 * @param iter an iterator pointing to the end of the message
3497 * @param value the integer value
3498 * @returns #TRUE on success
3501 dbus_message_iter_append_uint64 (DBusMessageIter *iter,
3502 dbus_uint64_t value)
3504 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3506 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3508 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT64))
3511 if (!_dbus_marshal_uint64 (&real->message->body, real->message->byte_order, value))
3513 _dbus_string_set_length (&real->message->body, real->pos);
3517 dbus_message_iter_append_done (real);
3522 #endif /* DBUS_HAVE_INT64 */
3525 * Appends a double value to the message.
3527 * @param iter an iterator pointing to the end of the message
3528 * @param value the double value
3529 * @returns #TRUE on success
3532 dbus_message_iter_append_double (DBusMessageIter *iter,
3535 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3537 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3539 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DOUBLE))
3542 if (!_dbus_marshal_double (&real->message->body, real->message->byte_order, value))
3544 _dbus_string_set_length (&real->message->body, real->pos);
3548 dbus_message_iter_append_done (real);
3554 * Appends a UTF-8 string to the message.
3556 * @param iter an iterator pointing to the end of the message
3557 * @param value the string
3558 * @returns #TRUE on success
3561 dbus_message_iter_append_string (DBusMessageIter *iter,
3564 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3566 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3568 if (!dbus_message_iter_append_type (real, DBUS_TYPE_STRING))
3571 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
3573 _dbus_string_set_length (&real->message->body, real->pos);
3577 dbus_message_iter_append_done (real);
3583 * Appends a named type data chunk to the message. A named
3584 * type is simply an arbitrary UTF-8 string used as a type
3585 * tag, plus an array of arbitrary bytes to be interpreted
3586 * according to the type tag.
3588 * @param iter an iterator pointing to the end of the message
3589 * @param name the name of the type
3590 * @param data the binary data used to store the value
3591 * @param len the length of the binary data in bytes
3592 * @returns #TRUE on success
3595 dbus_message_iter_append_named (DBusMessageIter *iter,
3597 const unsigned char *data,
3600 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3602 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3604 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NAMED))
3607 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, name))
3609 _dbus_string_set_length (&real->message->body, real->pos);
3613 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, data, len))
3615 _dbus_string_set_length (&real->message->body, real->pos);
3619 dbus_message_iter_append_done (real);
3626 * Appends a dict key name to the message. The iterator used
3627 * must point to a dict.
3629 * @param iter an iterator pointing to the end of the message
3630 * @param value the string
3631 * @returns #TRUE on success
3634 dbus_message_iter_append_dict_key (DBusMessageIter *iter,
3637 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3639 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3640 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
3642 if (real->wrote_dict_key)
3644 _dbus_warn ("Appendinging multiple dict key names\n");
3648 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
3653 dbus_message_iter_append_done (real);
3654 real->wrote_dict_key = TRUE;
3660 array_iter_type_mark_done (DBusMessageRealIter *iter)
3664 if (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY)
3665 array_iter_type_mark_done (iter->parent_iter);
3669 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&iter->message->body),
3670 sizeof (dbus_uint32_t));
3672 /* Empty length for now, backfill later */
3673 if (!_dbus_marshal_uint32 (&iter->message->body, iter->message->byte_order, 0))
3675 _dbus_string_set_length (&iter->message->body, iter->pos);
3679 iter->container_start = _dbus_string_get_length (&iter->message->body);
3680 iter->container_length_pos = len_pos;
3681 iter->array_type_done = TRUE;
3687 append_array_type (DBusMessageRealIter *real,
3689 dbus_bool_t *array_type_done,
3690 int *array_type_pos)
3692 int existing_element_type;
3694 if (!dbus_message_iter_append_type (real, DBUS_TYPE_ARRAY))
3697 if (real->type == DBUS_MESSAGE_ITER_TYPE_ARRAY &&
3698 real->array_type_done)
3700 existing_element_type = iter_get_array_type (real, array_type_pos);
3701 if (existing_element_type != element_type)
3703 _dbus_warn ("Appending array of %s, when expecting array of %s\n",
3704 _dbus_type_to_string (element_type),
3705 _dbus_type_to_string (existing_element_type));
3706 _dbus_string_set_length (&real->message->body, real->pos);
3709 if (array_type_done != NULL)
3710 *array_type_done = TRUE;
3714 if (array_type_pos != NULL)
3715 *array_type_pos = _dbus_string_get_length (&real->message->body);
3717 /* Append element type */
3718 if (!_dbus_string_append_byte (&real->message->body, element_type))
3720 _dbus_string_set_length (&real->message->body, real->pos);
3724 if (array_type_done != NULL)
3725 *array_type_done = element_type != DBUS_TYPE_ARRAY;
3727 if (element_type != DBUS_TYPE_ARRAY &&
3728 !array_iter_type_mark_done (real))
3736 * Appends an array to the message and initializes an iterator that
3737 * can be used to append to the array.
3739 * @param iter an iterator pointing to the end of the message
3740 * @param array_iter pointer to an iter that will be initialized
3741 * @param element_type the type of the array elements
3742 * @returns #TRUE on success
3745 dbus_message_iter_append_array (DBusMessageIter *iter,
3746 DBusMessageIter *array_iter,
3749 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3750 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
3753 dbus_bool_t array_type_done;
3755 if (element_type == DBUS_TYPE_NIL)
3757 _dbus_warn ("Can't create NIL arrays\n");
3761 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3763 if (!append_array_type (real, element_type, &array_type_done, &array_type_pos))
3766 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
3768 if (array_type_done)
3770 /* Empty length for now, backfill later */
3771 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
3773 _dbus_string_set_length (&real->message->body, real->pos);
3778 array_real->parent_iter = real;
3779 array_real->message = real->message;
3780 array_real->changed_stamp = real->message->changed_stamp;
3782 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
3783 array_real->pos = _dbus_string_get_length (&real->message->body);
3784 array_real->end = array_real->end;
3786 array_real->container_start = array_real->pos;
3787 array_real->container_length_pos = len_pos;
3788 array_real->wrote_dict_key = 0;
3789 array_real->array_type_done = array_type_done;
3790 array_real->array_type_pos = array_type_pos;
3792 dbus_message_iter_append_done (array_real);
3798 * Appends a dict to the message and initializes an iterator that
3799 * can be used to append to the dict.
3801 * @param iter an iterator pointing to the end of the message
3802 * @param dict_iter pointer to an iter that will be initialized
3803 * @returns #TRUE on success
3806 dbus_message_iter_append_dict (DBusMessageIter *iter,
3807 DBusMessageIter *dict_iter)
3809 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3810 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
3813 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3815 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DICT))
3818 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
3820 /* Empty length for now, backfill later */
3821 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
3823 _dbus_string_set_length (&real->message->body, real->pos);
3827 dict_real->parent_iter = real;
3828 dict_real->message = real->message;
3829 dict_real->changed_stamp = real->message->changed_stamp;
3831 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
3832 dict_real->pos = _dbus_string_get_length (&real->message->body);
3833 dict_real->end = dict_real->end;
3835 dict_real->container_start = dict_real->pos;
3836 dict_real->container_length_pos = len_pos;
3837 dict_real->wrote_dict_key = 0;
3839 dbus_message_iter_append_done (dict_real);
3846 * Appends a boolean array to the message.
3848 * @param iter an iterator pointing to the end of the message
3849 * @param value the array
3850 * @param len the length of the array
3851 * @returns #TRUE on success
3854 dbus_message_iter_append_boolean_array (DBusMessageIter *iter,
3855 unsigned const char *value,
3858 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3860 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3862 if (!append_array_type (real, DBUS_TYPE_BOOLEAN, NULL, NULL))
3865 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
3867 _dbus_string_set_length (&real->message->body, real->pos);
3871 dbus_message_iter_append_done (real);
3877 * Appends a 32 bit signed integer array to the message.
3879 * @param iter an iterator pointing to the end of the message
3880 * @param value the array
3881 * @param len the length of the array
3882 * @returns #TRUE on success
3885 dbus_message_iter_append_int32_array (DBusMessageIter *iter,
3886 const dbus_int32_t *value,
3889 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3891 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3893 if (!append_array_type (real, DBUS_TYPE_INT32, NULL, NULL))
3896 if (!_dbus_marshal_int32_array (&real->message->body, real->message->byte_order, value, len))
3898 _dbus_string_set_length (&real->message->body, real->pos);
3902 dbus_message_iter_append_done (real);
3908 * Appends a 32 bit unsigned integer array to the message.
3910 * @param iter an iterator pointing to the end of the message
3911 * @param value the array
3912 * @param len the length of the array
3913 * @returns #TRUE on success
3916 dbus_message_iter_append_uint32_array (DBusMessageIter *iter,
3917 const dbus_uint32_t *value,
3920 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3922 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3924 if (!append_array_type (real, DBUS_TYPE_UINT32, NULL, NULL))
3927 if (!_dbus_marshal_uint32_array (&real->message->body, real->message->byte_order, value, len))
3929 _dbus_string_set_length (&real->message->body, real->pos);
3933 dbus_message_iter_append_done (real);
3938 #ifdef DBUS_HAVE_INT64
3941 * Appends a 64 bit signed integer array to the message.
3943 * This function only exists if #DBUS_HAVE_INT64 is defined.
3945 * @param iter an iterator pointing to the end of the message
3946 * @param value the array
3947 * @param len the length of the array
3948 * @returns #TRUE on success
3951 dbus_message_iter_append_int64_array (DBusMessageIter *iter,
3952 const dbus_int64_t *value,
3955 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3957 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3959 if (!append_array_type (real, DBUS_TYPE_INT64, NULL, NULL))
3962 if (!_dbus_marshal_int64_array (&real->message->body, real->message->byte_order, value, len))
3964 _dbus_string_set_length (&real->message->body, real->pos);
3968 dbus_message_iter_append_done (real);
3974 * Appends a 64 bit unsigned integer array to the message.
3976 * This function only exists if #DBUS_HAVE_INT64 is defined.
3978 * @param iter an iterator pointing to the end of the message
3979 * @param value the array
3980 * @param len the length of the array
3981 * @returns #TRUE on success
3984 dbus_message_iter_append_uint64_array (DBusMessageIter *iter,
3985 const dbus_uint64_t *value,
3988 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3990 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
3992 if (!append_array_type (real, DBUS_TYPE_UINT64, NULL, NULL))
3995 if (!_dbus_marshal_uint64_array (&real->message->body, real->message->byte_order, value, len))
3997 _dbus_string_set_length (&real->message->body, real->pos);
4001 dbus_message_iter_append_done (real);
4005 #endif /* DBUS_HAVE_INT64 */
4008 * Appends a double array to the message.
4010 * @param iter an iterator pointing to the end of the message
4011 * @param value the array
4012 * @param len the length of the array
4013 * @returns #TRUE on success
4016 dbus_message_iter_append_double_array (DBusMessageIter *iter,
4017 const double *value,
4020 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4022 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4024 if (!append_array_type (real, DBUS_TYPE_DOUBLE, NULL, NULL))
4027 if (!_dbus_marshal_double_array (&real->message->body, real->message->byte_order, value, len))
4029 _dbus_string_set_length (&real->message->body, real->pos);
4033 dbus_message_iter_append_done (real);
4039 * Appends a byte array to the message.
4041 * @param iter an iterator pointing to the end of the message
4042 * @param value the array
4043 * @param len the length of the array
4044 * @returns #TRUE on success
4047 dbus_message_iter_append_byte_array (DBusMessageIter *iter,
4048 unsigned const char *value,
4051 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4053 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4055 if (!append_array_type (real, DBUS_TYPE_BYTE, NULL, NULL))
4058 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
4060 _dbus_string_set_length (&real->message->body, real->pos);
4064 dbus_message_iter_append_done (real);
4070 * Appends a string array to the message.
4072 * @param iter an iterator pointing to the end of the message
4073 * @param value the array
4074 * @param len the length of the array
4075 * @returns #TRUE on success
4078 dbus_message_iter_append_string_array (DBusMessageIter *iter,
4082 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
4084 _dbus_return_val_if_fail (dbus_message_iter_append_check (real), FALSE);
4086 if (!append_array_type (real, DBUS_TYPE_STRING, NULL, NULL))
4089 if (!_dbus_marshal_string_array (&real->message->body, real->message->byte_order, value, len))
4091 _dbus_string_set_length (&real->message->body, real->pos);
4095 dbus_message_iter_append_done (real);
4101 * Sets the message sender.
4103 * @param message the message
4104 * @param sender the sender
4105 * @returns #FALSE if not enough memory
4108 dbus_message_set_sender (DBusMessage *message,
4111 _dbus_return_val_if_fail (message != NULL, FALSE);
4112 _dbus_return_val_if_fail (!message->locked, FALSE);
4116 delete_string_field (message, FIELD_SENDER_SERVICE);
4121 return set_string_field (message,
4122 FIELD_SENDER_SERVICE,
4129 * Sets a flag indicating that the message does not want a reply; if
4130 * this flag is set, the other end of the connection may (but is not
4131 * required to) optimize by not sending method return or error
4132 * replies. If this flag is set, there is no way to know whether the
4133 * message successfully arrived at the remote end.
4135 * @param message the message
4136 * @param no_reply #TRUE if no reply is desired
4139 dbus_message_set_no_reply (DBusMessage *message,
4140 dbus_bool_t no_reply)
4144 _dbus_return_if_fail (message != NULL);
4145 _dbus_return_if_fail (!message->locked);
4147 header = _dbus_string_get_data_len (&message->header, FLAGS_OFFSET, 1);
4150 *header |= DBUS_HEADER_FLAG_NO_REPLY_EXPECTED;
4152 *header &= ~DBUS_HEADER_FLAG_NO_REPLY_EXPECTED;
4156 * Returns #TRUE if the message does not expect
4159 * @param message the message
4160 * @returns #TRUE if the message sender isn't waiting for a reply
4163 dbus_message_get_no_reply (DBusMessage *message)
4167 _dbus_return_val_if_fail (message != NULL, FALSE);
4169 header = _dbus_string_get_const_data_len (&message->header, FLAGS_OFFSET, 1);
4171 return (*header & DBUS_HEADER_FLAG_NO_REPLY_EXPECTED) != 0;
4175 * Gets the service which originated this message,
4176 * or #NULL if unknown or inapplicable.
4178 * @param message the message
4179 * @returns the service name or #NULL
4182 dbus_message_get_sender (DBusMessage *message)
4184 _dbus_return_val_if_fail (message != NULL, NULL);
4186 return get_string_field (message, FIELD_SENDER_SERVICE, NULL);
4190 _dbus_message_has_type_interface_member (DBusMessage *message,
4192 const char *interface,
4197 _dbus_assert (message != NULL);
4198 _dbus_assert (interface != NULL);
4199 _dbus_assert (method != NULL);
4201 if (dbus_message_get_type (message) != type)
4204 /* Optimize by checking the short method name first
4205 * instead of the longer interface name
4208 n = dbus_message_get_member (message);
4210 if (n && strcmp (n, method) == 0)
4212 n = dbus_message_get_interface (message);
4214 if (n && strcmp (n, interface) == 0)
4222 * Checks whether the message is a method call with the given
4223 * interface and member fields. If the message is not
4224 * #DBUS_MESSAGE_TYPE_METHOD_CALL, or has a different interface or member field,
4227 * @param message the message
4228 * @param interface the name to check (must not be #NULL)
4229 * @param method the name to check (must not be #NULL)
4231 * @returns #TRUE if the message is the specified method call
4234 dbus_message_is_method_call (DBusMessage *message,
4235 const char *interface,
4238 _dbus_return_val_if_fail (message != NULL, FALSE);
4239 _dbus_return_val_if_fail (interface != NULL, FALSE);
4240 _dbus_return_val_if_fail (method != NULL, FALSE);
4242 return _dbus_message_has_type_interface_member (message,
4243 DBUS_MESSAGE_TYPE_METHOD_CALL,
4248 * Checks whether the message is a signal with the given
4249 * interface and member fields. If the message is not
4250 * #DBUS_MESSAGE_TYPE_SIGNAL, or has a different interface or member field,
4253 * @param message the message
4254 * @param interface the name to check (must not be #NULL)
4255 * @param signal_name the name to check (must not be #NULL)
4257 * @returns #TRUE if the message is the specified signal
4260 dbus_message_is_signal (DBusMessage *message,
4261 const char *interface,
4262 const char *signal_name)
4264 _dbus_return_val_if_fail (message != NULL, FALSE);
4265 _dbus_return_val_if_fail (interface != NULL, FALSE);
4266 _dbus_return_val_if_fail (signal_name != NULL, FALSE);
4268 return _dbus_message_has_type_interface_member (message,
4269 DBUS_MESSAGE_TYPE_SIGNAL,
4270 interface, signal_name);
4274 * Checks whether the message is an error reply with the given error
4275 * name. If the message is not #DBUS_MESSAGE_TYPE_ERROR, or has a
4276 * different name, returns #FALSE.
4278 * @param message the message
4279 * @param error_name the name to check (must not be #NULL)
4281 * @returns #TRUE if the message is the specified error
4284 dbus_message_is_error (DBusMessage *message,
4285 const char *error_name)
4289 _dbus_return_val_if_fail (message != NULL, FALSE);
4290 _dbus_return_val_if_fail (error_name != NULL, FALSE);
4292 if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_ERROR)
4295 n = dbus_message_get_error_name (message);
4297 if (n && strcmp (n, error_name) == 0)
4304 * Checks whether the message was sent to the given service. If the
4305 * message has no service specified or has a different name, returns
4308 * @param message the message
4309 * @param service the service to check (must not be #NULL)
4311 * @returns #TRUE if the message has the given destination service
4314 dbus_message_has_destination (DBusMessage *message,
4315 const char *service)
4319 _dbus_return_val_if_fail (message != NULL, FALSE);
4320 _dbus_return_val_if_fail (service != NULL, FALSE);
4322 s = dbus_message_get_destination (message);
4324 if (s && strcmp (s, service) == 0)
4331 * Checks whether the message has the given service as its sender. If
4332 * the message has no sender specified or has a different sender,
4333 * returns #FALSE. Note that if a peer application owns multiple
4334 * services, its messages will have only one of those services as the
4335 * sender (usually the base service). So you can't use this
4336 * function to prove the sender didn't own service Foo, you can
4337 * only use it to prove that it did.
4339 * @param message the message
4340 * @param service the service to check (must not be #NULL)
4342 * @returns #TRUE if the message has the given origin service
4345 dbus_message_has_sender (DBusMessage *message,
4346 const char *service)
4350 _dbus_assert (service != NULL);
4352 s = dbus_message_get_sender (message);
4354 if (s && strcmp (s, service) == 0)
4361 * Sets a #DBusError based on the contents of the given
4362 * message. The error is only set if the message
4363 * is an error message, as in DBUS_MESSAGE_TYPE_ERROR.
4364 * The name of the error is set to the name of the message,
4365 * and the error message is set to the first argument
4366 * if the argument exists and is a string.
4368 * The return value indicates whether the error was set (the error is
4369 * set if and only if the message is an error message).
4370 * So you can check for an error reply and convert it to DBusError
4373 * @param error the error to set
4374 * @param message the message to set it from
4375 * @returns #TRUE if dbus_message_get_is_error() returns #TRUE for the message
4378 dbus_set_error_from_message (DBusError *error,
4379 DBusMessage *message)
4383 _dbus_return_val_if_fail (message != NULL, FALSE);
4384 _dbus_return_val_if_error_is_set (error, FALSE);
4386 if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_ERROR)
4390 dbus_message_get_args (message, NULL,
4391 DBUS_TYPE_STRING, &str,
4394 dbus_set_error (error, dbus_message_get_error_name (message),
4395 str ? "%s" : NULL, str);
4405 * @addtogroup DBusMessageInternals
4410 * @typedef DBusMessageLoader
4412 * The DBusMessageLoader object encapsulates the process of converting
4413 * a byte stream into a series of DBusMessage. It buffers the incoming
4414 * bytes as efficiently as possible, and generates a queue of
4415 * messages. DBusMessageLoader is typically used as part of a
4416 * DBusTransport implementation. The DBusTransport then hands off
4417 * the loaded messages to a DBusConnection, making the messages
4418 * visible to the application.
4420 * @todo write tests for break-loader that a) randomly delete header
4421 * fields and b) set string fields to zero-length and other funky
4426 /* we definitely use signed ints for sizes, so don't exceed
4427 * _DBUS_INT_MAX; and add 16 for paranoia, since a message
4428 * over 128M is pretty nuts anyhow.
4432 * The maximum sane message size.
4434 #define MAX_SANE_MESSAGE_SIZE (_DBUS_INT_MAX/16)
4437 * Implementation details of DBusMessageLoader.
4438 * All members are private.
4440 struct DBusMessageLoader
4442 int refcount; /**< Reference count. */
4444 DBusString data; /**< Buffered data */
4446 DBusList *messages; /**< Complete messages. */
4448 long max_message_size; /**< Maximum size of a message */
4450 unsigned int buffer_outstanding : 1; /**< Someone is using the buffer to read */
4452 unsigned int corrupted : 1; /**< We got broken data, and are no longer working */
4456 * The initial buffer size of the message loader.
4458 * @todo this should be based on min header size plus some average
4459 * body size, or something. Or rather, the min header size only, if we
4460 * want to try to read only the header, store that in a DBusMessage,
4461 * then read only the body and store that, etc., depends on
4462 * how we optimize _dbus_message_loader_get_buffer() and what
4463 * the exact message format is.
4465 #define INITIAL_LOADER_DATA_LEN 32
4468 * Creates a new message loader. Returns #NULL if memory can't
4471 * @returns new loader, or #NULL.
4474 _dbus_message_loader_new (void)
4476 DBusMessageLoader *loader;
4478 loader = dbus_new0 (DBusMessageLoader, 1);
4482 loader->refcount = 1;
4484 /* Try to cap message size at something that won't *totally* hose
4485 * the system if we have a couple of them.
4487 loader->max_message_size = _DBUS_ONE_MEGABYTE * 32;
4489 if (!_dbus_string_init (&loader->data))
4495 /* preallocate the buffer for speed, ignore failure */
4496 _dbus_string_set_length (&loader->data, INITIAL_LOADER_DATA_LEN);
4497 _dbus_string_set_length (&loader->data, 0);
4503 * Increments the reference count of the loader.
4505 * @param loader the loader.
4508 _dbus_message_loader_ref (DBusMessageLoader *loader)
4510 loader->refcount += 1;
4514 * Decrements the reference count of the loader and finalizes the
4515 * loader when the count reaches zero.
4517 * @param loader the loader.
4520 _dbus_message_loader_unref (DBusMessageLoader *loader)
4522 loader->refcount -= 1;
4523 if (loader->refcount == 0)
4525 _dbus_list_foreach (&loader->messages,
4526 (DBusForeachFunction) dbus_message_unref,
4528 _dbus_list_clear (&loader->messages);
4529 _dbus_string_free (&loader->data);
4535 * Gets the buffer to use for reading data from the network. Network
4536 * data is read directly into an allocated buffer, which is then used
4537 * in the DBusMessage, to avoid as many extra memcpy's as possible.
4538 * The buffer must always be returned immediately using
4539 * _dbus_message_loader_return_buffer(), even if no bytes are
4540 * successfully read.
4542 * @todo this function can be a lot more clever. For example
4543 * it can probably always return a buffer size to read exactly
4544 * the body of the next message, thus avoiding any memory wastage
4547 * @todo we need to enforce a max length on strings in header fields.
4549 * @param loader the message loader.
4550 * @param buffer the buffer
4553 _dbus_message_loader_get_buffer (DBusMessageLoader *loader,
4554 DBusString **buffer)
4556 _dbus_assert (!loader->buffer_outstanding);
4558 *buffer = &loader->data;
4560 loader->buffer_outstanding = TRUE;
4564 * The smallest header size that can occur.
4565 * (It won't be valid)
4567 #define DBUS_MINIMUM_HEADER_SIZE 16
4569 /** Pack four characters as in "abcd" into a uint32 */
4570 #define FOUR_CHARS_TO_UINT32(a, b, c, d) \
4571 ((((dbus_uint32_t)a) << 24) | \
4572 (((dbus_uint32_t)b) << 16) | \
4573 (((dbus_uint32_t)c) << 8) | \
4576 /** DBUS_HEADER_FIELD_PATH packed into a dbus_uint32_t */
4577 #define DBUS_HEADER_FIELD_PATH_AS_UINT32 \
4578 FOUR_CHARS_TO_UINT32 ('p', 'a', 't', 'h')
4580 /** DBUS_HEADER_FIELD_INTERFACE packed into a dbus_uint32_t */
4581 #define DBUS_HEADER_FIELD_INTERFACE_AS_UINT32 \
4582 FOUR_CHARS_TO_UINT32 ('i', 'f', 'c', 'e')
4584 /** DBUS_HEADER_FIELD_MEMBER packed into a dbus_uint32_t */
4585 #define DBUS_HEADER_FIELD_MEMBER_AS_UINT32 \
4586 FOUR_CHARS_TO_UINT32 ('m', 'e', 'b', 'r')
4588 /** DBUS_HEADER_FIELD_ERROR_NAME packed into a dbus_uint32_t */
4589 #define DBUS_HEADER_FIELD_ERROR_NAME_AS_UINT32 \
4590 FOUR_CHARS_TO_UINT32 ('e', 'r', 'n', 'm')
4592 /** DBUS_HEADER_FIELD_SERVICE packed into a dbus_uint32_t */
4593 #define DBUS_HEADER_FIELD_SERVICE_AS_UINT32 \
4594 FOUR_CHARS_TO_UINT32 ('s', 'r', 'v', 'c')
4596 /** DBUS_HEADER_FIELD_REPLY packed into a dbus_uint32_t */
4597 #define DBUS_HEADER_FIELD_REPLY_AS_UINT32 \
4598 FOUR_CHARS_TO_UINT32 ('r', 'p', 'l', 'y')
4600 /** DBUS_HEADER_FIELD_SENDER_SERVICE Packed into a dbus_uint32_t */
4601 #define DBUS_HEADER_FIELD_SENDER_SERVICE_AS_UINT32 \
4602 FOUR_CHARS_TO_UINT32 ('s', 'd', 'r', 's')
4605 decode_string_field (const DBusString *data,
4606 HeaderField fields[FIELD_LAST],
4610 const char *field_name)
4613 int string_data_pos;
4615 if (fields[field].offset >= 0)
4617 _dbus_verbose ("%s field provided twice\n",
4622 if (type != DBUS_TYPE_STRING)
4624 _dbus_verbose ("%s field has wrong type %s\n",
4625 field_name, _dbus_type_to_string (type));
4629 /* skip padding after typecode, skip string length;
4630 * we assume that the string arg has already been validated
4631 * for sanity and UTF-8
4633 string_data_pos = _DBUS_ALIGN_VALUE (pos, 4) + 4;
4634 _dbus_assert (string_data_pos < _dbus_string_get_length (data));
4636 _dbus_string_init_const (&tmp,
4637 _dbus_string_get_const_data (data) + string_data_pos);
4639 if (field == FIELD_INTERFACE)
4641 if (!_dbus_string_validate_interface (&tmp, 0, _dbus_string_get_length (&tmp)))
4643 _dbus_verbose ("%s field has invalid content \"%s\"\n",
4644 field_name, _dbus_string_get_const_data (&tmp));
4648 if (_dbus_string_equal_c_str (&tmp,
4649 DBUS_INTERFACE_ORG_FREEDESKTOP_LOCAL))
4651 _dbus_verbose ("Message is on the local interface\n");
4655 else if (field == FIELD_MEMBER)
4657 if (!_dbus_string_validate_member (&tmp, 0, _dbus_string_get_length (&tmp)))
4659 _dbus_verbose ("%s field has invalid content \"%s\"\n",
4660 field_name, _dbus_string_get_const_data (&tmp));
4664 else if (field == FIELD_ERROR_NAME)
4666 if (!_dbus_string_validate_error_name (&tmp, 0, _dbus_string_get_length (&tmp)))
4668 _dbus_verbose ("%s field has invalid content \"%s\"\n",
4669 field_name, _dbus_string_get_const_data (&tmp));
4673 else if (field == FIELD_SERVICE ||
4674 field == FIELD_SENDER_SERVICE)
4676 if (!_dbus_string_validate_service (&tmp, 0, _dbus_string_get_length (&tmp)))
4678 _dbus_verbose ("%s field has invalid content \"%s\"\n",
4679 field_name, _dbus_string_get_const_data (&tmp));
4685 _dbus_assert_not_reached ("Unknown field\n");
4688 fields[field].offset = _DBUS_ALIGN_VALUE (pos, 4);
4691 _dbus_verbose ("Found field %s name at offset %d\n",
4692 field_name, fields[field].offset);
4699 decode_header_data (const DBusString *data,
4703 HeaderField fields[FIELD_LAST],
4704 int *message_padding)
4711 if (header_len < 16)
4713 _dbus_verbose ("Header length %d is too short\n", header_len);
4718 while (i < FIELD_LAST)
4720 fields[i].offset = -1;
4724 fields[FIELD_HEADER_LENGTH].offset = 4;
4725 fields[FIELD_BODY_LENGTH].offset = 8;
4726 fields[FIELD_CLIENT_SERIAL].offset = 12;
4728 /* Now handle the named fields. A real named field is at least 4
4729 * bytes for the name, plus a type code (1 byte) plus padding. So
4730 * if we have less than 8 bytes left, it must be alignment padding,
4731 * not a field. While >= 8 bytes can't be entirely alignment
4735 while ((pos + 7) < header_len)
4737 pos = _DBUS_ALIGN_VALUE (pos, 4);
4739 if ((pos + 4) > header_len)
4741 _dbus_verbose ("not enough space remains in header for header field value\n");
4745 field = _dbus_string_get_const_data_len (data, pos, 4);
4748 _dbus_assert (_DBUS_ALIGN_ADDRESS (field, 4) == field);
4750 if (!_dbus_marshal_validate_type (data, pos, &type, &pos))
4752 _dbus_verbose ("Failed to validate type of named header field\n");
4756 if (!_dbus_marshal_validate_arg (data, byte_order, 0, type, -1, pos, &new_pos))
4758 _dbus_verbose ("Failed to validate argument to named header field\n");
4762 if (new_pos > header_len)
4764 _dbus_verbose ("Named header field tries to extend beyond header length\n");
4768 switch (DBUS_UINT32_FROM_BE (*(int*)field))
4770 case DBUS_HEADER_FIELD_SERVICE_AS_UINT32:
4771 if (!decode_string_field (data, fields, pos, type,
4773 DBUS_HEADER_FIELD_SERVICE))
4777 case DBUS_HEADER_FIELD_INTERFACE_AS_UINT32:
4778 if (!decode_string_field (data, fields, pos, type,
4780 DBUS_HEADER_FIELD_INTERFACE))
4784 case DBUS_HEADER_FIELD_MEMBER_AS_UINT32:
4785 if (!decode_string_field (data, fields, pos, type,
4787 DBUS_HEADER_FIELD_MEMBER))
4791 case DBUS_HEADER_FIELD_ERROR_NAME_AS_UINT32:
4792 if (!decode_string_field (data, fields, pos, type,
4794 DBUS_HEADER_FIELD_ERROR_NAME))
4798 case DBUS_HEADER_FIELD_SENDER_SERVICE_AS_UINT32:
4799 if (!decode_string_field (data, fields, pos, type,
4800 FIELD_SENDER_SERVICE,
4801 DBUS_HEADER_FIELD_SENDER_SERVICE))
4805 case DBUS_HEADER_FIELD_PATH_AS_UINT32:
4807 /* Path was already validated as part of standard
4808 * type validation, since there's an OBJECT_PATH
4812 if (fields[FIELD_PATH].offset >= 0)
4814 _dbus_verbose ("%s field provided twice\n",
4815 DBUS_HEADER_FIELD_PATH);
4818 if (type != DBUS_TYPE_OBJECT_PATH)
4820 _dbus_verbose ("%s field has wrong type\n", DBUS_HEADER_FIELD_PATH);
4824 fields[FIELD_PATH].offset = _DBUS_ALIGN_VALUE (pos, 4);
4826 /* No forging signals from the local path */
4829 s = _dbus_string_get_const_data_len (data,
4830 fields[FIELD_PATH].offset,
4831 _dbus_string_get_length (data) -
4832 fields[FIELD_PATH].offset);
4833 if (strcmp (s, DBUS_PATH_ORG_FREEDESKTOP_LOCAL) == 0)
4835 _dbus_verbose ("Message is on the local path\n");
4840 _dbus_verbose ("Found path at offset %d\n",
4841 fields[FIELD_PATH].offset);
4844 case DBUS_HEADER_FIELD_REPLY_AS_UINT32:
4845 if (fields[FIELD_REPLY_SERIAL].offset >= 0)
4847 _dbus_verbose ("%s field provided twice\n",
4848 DBUS_HEADER_FIELD_REPLY);
4852 if (type != DBUS_TYPE_UINT32)
4854 _dbus_verbose ("%s field has wrong type\n", DBUS_HEADER_FIELD_REPLY);
4858 fields[FIELD_REPLY_SERIAL].offset = _DBUS_ALIGN_VALUE (pos, 4);
4860 _dbus_verbose ("Found reply serial at offset %d\n",
4861 fields[FIELD_REPLY_SERIAL].offset);
4865 _dbus_verbose ("Ignoring an unknown header field: %.4s at offset %d\n",
4872 if (pos < header_len)
4874 /* Alignment padding, verify that it's nul */
4875 _dbus_assert ((header_len - pos) < 8);
4877 if (!_dbus_string_validate_nul (data,
4878 pos, (header_len - pos)))
4880 _dbus_verbose ("header alignment padding is not nul\n");
4885 /* Depending on message type, enforce presence of certain fields. */
4886 switch (message_type)
4888 case DBUS_MESSAGE_TYPE_SIGNAL:
4889 case DBUS_MESSAGE_TYPE_METHOD_CALL:
4890 if (fields[FIELD_PATH].offset < 0)
4892 _dbus_verbose ("No %s field provided\n",
4893 DBUS_HEADER_FIELD_PATH);
4896 /* FIXME make this optional, at least for method calls */
4897 if (fields[FIELD_INTERFACE].offset < 0)
4899 _dbus_verbose ("No %s field provided\n",
4900 DBUS_HEADER_FIELD_INTERFACE);
4903 if (fields[FIELD_MEMBER].offset < 0)
4905 _dbus_verbose ("No %s field provided\n",
4906 DBUS_HEADER_FIELD_MEMBER);
4910 case DBUS_MESSAGE_TYPE_ERROR:
4911 if (fields[FIELD_ERROR_NAME].offset < 0)
4913 _dbus_verbose ("No %s field provided\n",
4914 DBUS_HEADER_FIELD_ERROR_NAME);
4918 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
4921 /* An unknown type, spec requires us to ignore it */
4925 if (message_padding)
4926 *message_padding = header_len - pos;
4932 * Returns a buffer obtained from _dbus_message_loader_get_buffer(),
4933 * indicating to the loader how many bytes of the buffer were filled
4934 * in. This function must always be called, even if no bytes were
4935 * successfully read.
4937 * @param loader the loader.
4938 * @param buffer the buffer.
4939 * @param bytes_read number of bytes that were read into the buffer.
4942 _dbus_message_loader_return_buffer (DBusMessageLoader *loader,
4946 _dbus_assert (loader->buffer_outstanding);
4947 _dbus_assert (buffer == &loader->data);
4949 loader->buffer_outstanding = FALSE;
4953 * Converts buffered data into messages.
4955 * @todo we need to check that the proper named header fields exist
4956 * for each message type.
4958 * @todo If a message has unknown type, we should probably eat it
4959 * right here rather than passing it out to applications. However
4960 * it's not an error to see messages of unknown type.
4962 * @param loader the loader.
4963 * @returns #TRUE if we had enough memory to finish.
4966 _dbus_message_loader_queue_messages (DBusMessageLoader *loader)
4968 if (loader->corrupted)
4971 while (_dbus_string_get_length (&loader->data) >= 16)
4973 DBusMessage *message;
4974 const char *header_data;
4975 int byte_order, message_type, header_len, body_len, header_padding;
4976 dbus_uint32_t header_len_unsigned, body_len_unsigned;
4978 header_data = _dbus_string_get_const_data_len (&loader->data, 0, 16);
4980 _dbus_assert (_DBUS_ALIGN_ADDRESS (header_data, 4) == header_data);
4982 if (header_data[VERSION_OFFSET] != DBUS_MAJOR_PROTOCOL_VERSION)
4984 _dbus_verbose ("Message has protocol version %d ours is %d\n",
4985 (int) header_data[VERSION_OFFSET], DBUS_MAJOR_PROTOCOL_VERSION);
4986 loader->corrupted = TRUE;
4990 byte_order = header_data[BYTE_ORDER_OFFSET];
4992 if (byte_order != DBUS_LITTLE_ENDIAN &&
4993 byte_order != DBUS_BIG_ENDIAN)
4995 _dbus_verbose ("Message with bad byte order '%c' received\n",
4997 loader->corrupted = TRUE;
5001 /* Unknown types are ignored, but INVALID is
5004 message_type = header_data[TYPE_OFFSET];
5005 if (message_type == DBUS_MESSAGE_TYPE_INVALID)
5007 _dbus_verbose ("Message with bad type '%d' received\n",
5009 loader->corrupted = TRUE;
5013 header_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 4);
5014 body_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 8);
5016 if (header_len_unsigned < 16)
5018 _dbus_verbose ("Message had broken too-small header length %u\n",
5019 header_len_unsigned);
5020 loader->corrupted = TRUE;
5024 if (header_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE ||
5025 body_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE)
5027 _dbus_verbose ("Header or body length too large (%u %u)\n",
5028 header_len_unsigned,
5030 loader->corrupted = TRUE;
5034 /* Now that we know the values are in signed range, get
5035 * rid of stupid unsigned, just causes bugs
5037 header_len = header_len_unsigned;
5038 body_len = body_len_unsigned;
5040 if (_DBUS_ALIGN_VALUE (header_len, 8) != header_len_unsigned)
5043 _dbus_verbose ("header length %d is not aligned to 8 bytes\n",
5045 loader->corrupted = TRUE;
5049 if (header_len + body_len > loader->max_message_size)
5051 _dbus_verbose ("Message claimed length header = %d body = %d exceeds max message length %ld\n",
5052 header_len, body_len, loader->max_message_size);
5053 loader->corrupted = TRUE;
5057 if (_dbus_string_get_length (&loader->data) >= (header_len + body_len))
5059 HeaderField fields[FIELD_LAST];
5064 _dbus_verbose_bytes_of_string (&loader->data, 0, header_len + body_len);
5066 if (!decode_header_data (&loader->data,
5067 header_len, byte_order,
5069 fields, &header_padding))
5071 _dbus_verbose ("Header was invalid\n");
5072 loader->corrupted = TRUE;
5076 next_arg = header_len;
5077 while (next_arg < (header_len + body_len))
5080 int prev = next_arg;
5082 if (!_dbus_marshal_validate_type (&loader->data, next_arg,
5085 _dbus_verbose ("invalid typecode at offset %d\n", prev);
5086 loader->corrupted = TRUE;
5090 if (!_dbus_marshal_validate_arg (&loader->data,
5097 _dbus_verbose ("invalid type data at %d, next_arg\n", next_arg);
5098 loader->corrupted = TRUE;
5102 _dbus_assert (next_arg > prev);
5105 if (next_arg > (header_len + body_len))
5107 _dbus_verbose ("end of last arg at %d but message has len %d+%d=%d\n",
5108 next_arg, header_len, body_len,
5109 header_len + body_len);
5110 loader->corrupted = TRUE;
5114 message = dbus_message_new_empty_header ();
5115 if (message == NULL)
5117 _dbus_verbose ("Failed to allocate empty message\n");
5121 message->byte_order = byte_order;
5122 message->header_padding = header_padding;
5124 /* Copy in the offsets we found */
5126 while (i < FIELD_LAST)
5128 message->header_fields[i] = fields[i];
5132 if (!_dbus_list_append (&loader->messages, message))
5134 _dbus_verbose ("Failed to append new message to loader queue\n");
5135 dbus_message_unref (message);
5139 _dbus_assert (_dbus_string_get_length (&message->header) == 0);
5140 _dbus_assert (_dbus_string_get_length (&message->body) == 0);
5142 _dbus_assert (_dbus_string_get_length (&loader->data) >=
5143 (header_len + body_len));
5145 if (!_dbus_string_move_len (&loader->data, 0, header_len, &message->header, 0))
5147 _dbus_verbose ("Failed to move header into new message\n");
5148 _dbus_list_remove_last (&loader->messages, message);
5149 dbus_message_unref (message);
5153 if (!_dbus_string_move_len (&loader->data, 0, body_len, &message->body, 0))
5157 _dbus_verbose ("Failed to move body into new message\n");
5159 /* put the header back, we'll try again later */
5160 result = _dbus_string_copy_len (&message->header, 0, header_len,
5162 _dbus_assert (result); /* because DBusString never reallocs smaller */
5164 _dbus_list_remove_last (&loader->messages, message);
5165 dbus_message_unref (message);
5169 _dbus_assert (_dbus_string_get_length (&message->header) == header_len);
5170 _dbus_assert (_dbus_string_get_length (&message->body) == body_len);
5172 /* Fill in caches (we checked the types of these fields
5175 message->reply_serial = get_uint_field (message,
5176 FIELD_REPLY_SERIAL);
5177 message->client_serial = get_uint_field (message,
5178 FIELD_CLIENT_SERIAL);
5180 _dbus_verbose ("Loaded message %p\n", message);
5190 * Peeks at first loaded message, returns #NULL if no messages have
5193 * @param loader the loader.
5194 * @returns the next message, or #NULL if none.
5197 _dbus_message_loader_peek_message (DBusMessageLoader *loader)
5199 if (loader->messages)
5200 return loader->messages->data;
5206 * Pops a loaded message (passing ownership of the message
5207 * to the caller). Returns #NULL if no messages have been
5210 * @param loader the loader.
5211 * @returns the next message, or #NULL if none.
5214 _dbus_message_loader_pop_message (DBusMessageLoader *loader)
5216 return _dbus_list_pop_first (&loader->messages);
5220 * Pops a loaded message inside a list link (passing ownership of the
5221 * message and link to the caller). Returns #NULL if no messages have
5224 * @param loader the loader.
5225 * @returns the next message link, or #NULL if none.
5228 _dbus_message_loader_pop_message_link (DBusMessageLoader *loader)
5230 return _dbus_list_pop_first_link (&loader->messages);
5234 * Returns a popped message link, used to undo a pop.
5236 * @param loader the loader
5237 * @param link the link with a message in it
5240 _dbus_message_loader_putback_message_link (DBusMessageLoader *loader,
5243 _dbus_list_prepend_link (&loader->messages, link);
5247 * Checks whether the loader is confused due to bad data.
5248 * If messages are received that are invalid, the
5249 * loader gets confused and gives up permanently.
5250 * This state is called "corrupted."
5252 * @param loader the loader
5253 * @returns #TRUE if the loader is hosed.
5256 _dbus_message_loader_get_is_corrupted (DBusMessageLoader *loader)
5258 return loader->corrupted;
5262 * Sets the maximum size message we allow.
5264 * @param loader the loader
5265 * @param size the max message size in bytes
5268 _dbus_message_loader_set_max_message_size (DBusMessageLoader *loader,
5271 if (size > MAX_SANE_MESSAGE_SIZE)
5273 _dbus_verbose ("clamping requested max message size %ld to %d\n",
5274 size, MAX_SANE_MESSAGE_SIZE);
5275 size = MAX_SANE_MESSAGE_SIZE;
5277 loader->max_message_size = size;
5281 * Gets the maximum allowed message size in bytes.
5283 * @param loader the loader
5284 * @returns max size in bytes
5287 _dbus_message_loader_get_max_message_size (DBusMessageLoader *loader)
5289 return loader->max_message_size;
5292 static DBusDataSlotAllocator slot_allocator;
5293 _DBUS_DEFINE_GLOBAL_LOCK (message_slots);
5296 * Allocates an integer ID to be used for storing application-specific
5297 * data on any DBusMessage. The allocated ID may then be used
5298 * with dbus_message_set_data() and dbus_message_get_data().
5299 * The passed-in slot must be initialized to -1, and is filled in
5300 * with the slot ID. If the passed-in slot is not -1, it's assumed
5301 * to be already allocated, and its refcount is incremented.
5303 * The allocated slot is global, i.e. all DBusMessage objects will
5304 * have a slot with the given integer ID reserved.
5306 * @param slot_p address of a global variable storing the slot
5307 * @returns #FALSE on failure (no memory)
5310 dbus_message_allocate_data_slot (dbus_int32_t *slot_p)
5312 return _dbus_data_slot_allocator_alloc (&slot_allocator,
5313 _DBUS_LOCK_NAME (message_slots),
5318 * Deallocates a global ID for message data slots.
5319 * dbus_message_get_data() and dbus_message_set_data() may no
5320 * longer be used with this slot. Existing data stored on existing
5321 * DBusMessage objects will be freed when the message is
5322 * finalized, but may not be retrieved (and may only be replaced if
5323 * someone else reallocates the slot). When the refcount on the
5324 * passed-in slot reaches 0, it is set to -1.
5326 * @param slot_p address storing the slot to deallocate
5329 dbus_message_free_data_slot (dbus_int32_t *slot_p)
5331 _dbus_return_if_fail (*slot_p >= 0);
5333 _dbus_data_slot_allocator_free (&slot_allocator, slot_p);
5337 * Stores a pointer on a DBusMessage, along
5338 * with an optional function to be used for freeing
5339 * the data when the data is set again, or when
5340 * the message is finalized. The slot number
5341 * must have been allocated with dbus_message_allocate_data_slot().
5343 * @param message the message
5344 * @param slot the slot number
5345 * @param data the data to store
5346 * @param free_data_func finalizer function for the data
5347 * @returns #TRUE if there was enough memory to store the data
5350 dbus_message_set_data (DBusMessage *message,
5353 DBusFreeFunction free_data_func)
5355 DBusFreeFunction old_free_func;
5359 _dbus_return_val_if_fail (message != NULL, FALSE);
5360 _dbus_return_val_if_fail (slot >= 0, FALSE);
5362 retval = _dbus_data_slot_list_set (&slot_allocator,
5363 &message->slot_list,
5364 slot, data, free_data_func,
5365 &old_free_func, &old_data);
5369 /* Do the actual free outside the message lock */
5371 (* old_free_func) (old_data);
5378 * Retrieves data previously set with dbus_message_set_data().
5379 * The slot must still be allocated (must not have been freed).
5381 * @param message the message
5382 * @param slot the slot to get data from
5383 * @returns the data, or #NULL if not found
5386 dbus_message_get_data (DBusMessage *message,
5391 _dbus_return_val_if_fail (message != NULL, NULL);
5393 res = _dbus_data_slot_list_get (&slot_allocator,
5394 &message->slot_list,
5401 #ifdef DBUS_BUILD_TESTS
5402 #include "dbus-test.h"
5406 message_iter_test (DBusMessage *message)
5408 DBusMessageIter iter, dict, array, array2;
5410 unsigned char *data;
5411 dbus_int32_t *our_int_array;
5414 dbus_message_iter_init (message, &iter);
5417 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_STRING)
5418 _dbus_assert_not_reached ("Argument type isn't string");
5420 str = dbus_message_iter_get_string (&iter);
5421 if (strcmp (str, "Test string") != 0)
5422 _dbus_assert_not_reached ("Strings differ");
5425 if (!dbus_message_iter_next (&iter))
5426 _dbus_assert_not_reached ("Reached end of arguments");
5428 /* Signed integer tests */
5429 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_INT32)
5430 _dbus_assert_not_reached ("Argument type isn't int32");
5432 if (dbus_message_iter_get_int32 (&iter) != -0x12345678)
5433 _dbus_assert_not_reached ("Signed integers differ");
5435 if (!dbus_message_iter_next (&iter))
5436 _dbus_assert_not_reached ("Reached end of fields");
5438 /* Unsigned integer tests */
5439 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
5440 _dbus_assert_not_reached ("Argument type isn't int32");
5442 if (dbus_message_iter_get_uint32 (&iter) != 0xedd1e)
5443 _dbus_assert_not_reached ("Unsigned integers differ");
5445 if (!dbus_message_iter_next (&iter))
5446 _dbus_assert_not_reached ("Reached end of arguments");
5449 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DOUBLE)
5450 _dbus_assert_not_reached ("Argument type isn't double");
5452 if (dbus_message_iter_get_double (&iter) != 3.14159)
5453 _dbus_assert_not_reached ("Doubles differ");
5455 if (!dbus_message_iter_next (&iter))
5456 _dbus_assert_not_reached ("Reached end of arguments");
5458 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY)
5459 _dbus_assert_not_reached ("Argument type not an array");
5461 if (dbus_message_iter_get_array_type (&iter) != DBUS_TYPE_DOUBLE)
5462 _dbus_assert_not_reached ("Array type not double");
5465 if (!dbus_message_iter_init_array_iterator (&iter, &array, NULL))
5466 _dbus_assert_not_reached ("Array init failed");
5468 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
5469 _dbus_assert_not_reached ("Argument type isn't double");
5471 if (dbus_message_iter_get_double (&array) != 1.5)
5472 _dbus_assert_not_reached ("Unsigned integers differ");
5474 if (!dbus_message_iter_next (&array))
5475 _dbus_assert_not_reached ("Reached end of arguments");
5477 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
5478 _dbus_assert_not_reached ("Argument type isn't double");
5480 if (dbus_message_iter_get_double (&array) != 2.5)
5481 _dbus_assert_not_reached ("Unsigned integers differ");
5483 if (dbus_message_iter_next (&array))
5484 _dbus_assert_not_reached ("Didn't reach end of arguments");
5486 if (!dbus_message_iter_next (&iter))
5487 _dbus_assert_not_reached ("Reached end of arguments");
5492 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
5493 _dbus_assert_not_reached ("not dict type");
5495 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
5496 _dbus_assert_not_reached ("dict iter failed");
5498 str = dbus_message_iter_get_dict_key (&dict);
5499 if (str == NULL || strcmp (str, "test") != 0)
5500 _dbus_assert_not_reached ("wrong dict key");
5503 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
5504 _dbus_assert_not_reached ("wrong dict entry type");
5506 if (dbus_message_iter_get_uint32 (&dict) != 0xDEADBEEF)
5507 _dbus_assert_not_reached ("wrong dict entry value");
5509 if (!dbus_message_iter_next (&dict))
5510 _dbus_assert_not_reached ("reached end of dict");
5512 /* array of array of int32 (in dict) */
5514 str = dbus_message_iter_get_dict_key (&dict);
5515 if (str == NULL || strcmp (str, "array") != 0)
5516 _dbus_assert_not_reached ("wrong dict key");
5519 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_ARRAY)
5520 _dbus_assert_not_reached ("Argument type not an array");
5522 if (dbus_message_iter_get_array_type (&dict) != DBUS_TYPE_ARRAY)
5523 _dbus_assert_not_reached ("Array type not array");
5525 if (!dbus_message_iter_init_array_iterator (&dict, &array, NULL))
5526 _dbus_assert_not_reached ("Array init failed");
5528 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_ARRAY)
5529 _dbus_assert_not_reached ("Argument type isn't array");
5531 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
5532 _dbus_assert_not_reached ("Array type not int32");
5534 if (!dbus_message_iter_init_array_iterator (&array, &array2, NULL))
5535 _dbus_assert_not_reached ("Array init failed");
5537 if (dbus_message_iter_get_arg_type (&array2) != DBUS_TYPE_INT32)
5538 _dbus_assert_not_reached ("Argument type isn't int32");
5540 if (dbus_message_iter_get_int32 (&array2) != 0x12345678)
5541 _dbus_assert_not_reached ("Signed integers differ");
5543 if (!dbus_message_iter_next (&array2))
5544 _dbus_assert_not_reached ("Reached end of arguments");
5546 if (dbus_message_iter_get_int32 (&array2) != 0x23456781)
5547 _dbus_assert_not_reached ("Signed integers differ");
5549 if (dbus_message_iter_next (&array2))
5550 _dbus_assert_not_reached ("Didn't reached end of arguments");
5552 if (!dbus_message_iter_next (&array))
5553 _dbus_assert_not_reached ("Reached end of arguments");
5555 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
5556 _dbus_assert_not_reached ("Array type not int32");
5558 if (!dbus_message_iter_get_int32_array (&array,
5561 _dbus_assert_not_reached ("couldn't get int32 array");
5563 _dbus_assert (len == 3);
5564 _dbus_assert (our_int_array[0] == 0x34567812 &&
5565 our_int_array[1] == 0x45678123 &&
5566 our_int_array[2] == 0x56781234);
5567 dbus_free (our_int_array);
5569 if (dbus_message_iter_next (&array))
5570 _dbus_assert_not_reached ("Didn't reach end of array");
5572 if (dbus_message_iter_next (&dict))
5573 _dbus_assert_not_reached ("Didn't reach end of dict");
5575 if (!dbus_message_iter_next (&iter))
5576 _dbus_assert_not_reached ("Reached end of arguments");
5578 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_BYTE)
5580 _dbus_warn ("type was: %d\n", dbus_message_iter_get_arg_type (&iter));
5581 _dbus_assert_not_reached ("wrong type after dict (should be byte)");
5584 if (dbus_message_iter_get_byte (&iter) != 0xF0)
5585 _dbus_assert_not_reached ("wrong value after dict");
5588 if (!dbus_message_iter_next (&iter))
5589 _dbus_assert_not_reached ("Reached end of arguments");
5591 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NIL)
5592 _dbus_assert_not_reached ("not a nil type");
5594 if (!dbus_message_iter_next (&iter))
5595 _dbus_assert_not_reached ("Reached end of arguments");
5597 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NAMED)
5598 _dbus_assert_not_reached ("wrong type after dict");
5600 if (!dbus_message_iter_get_named (&iter, &str, &data, &len))
5601 _dbus_assert_not_reached ("failed to get named");
5603 _dbus_assert (strcmp (str, "named")==0);
5604 _dbus_assert (len == 5);
5605 _dbus_assert (strcmp (data, "data")==0);
5609 if (dbus_message_iter_next (&iter))
5610 _dbus_assert_not_reached ("Didn't reach end of arguments");
5615 check_message_handling_type (DBusMessageIter *iter,
5618 DBusMessageIter child_iter;
5624 case DBUS_TYPE_BYTE:
5625 dbus_message_iter_get_byte (iter);
5627 case DBUS_TYPE_BOOLEAN:
5628 dbus_message_iter_get_boolean (iter);
5630 case DBUS_TYPE_INT32:
5631 dbus_message_iter_get_int32 (iter);
5633 case DBUS_TYPE_UINT32:
5634 dbus_message_iter_get_uint32 (iter);
5636 case DBUS_TYPE_INT64:
5637 #ifdef DBUS_HAVE_INT64
5638 dbus_message_iter_get_int64 (iter);
5641 case DBUS_TYPE_UINT64:
5642 #ifdef DBUS_HAVE_INT64
5643 dbus_message_iter_get_uint64 (iter);
5646 case DBUS_TYPE_DOUBLE:
5647 dbus_message_iter_get_double (iter);
5649 case DBUS_TYPE_STRING:
5652 str = dbus_message_iter_get_string (iter);
5655 _dbus_warn ("NULL string in message\n");
5661 case DBUS_TYPE_NAMED:
5664 unsigned char *data;
5667 if (!dbus_message_iter_get_named (iter, &name, &data, &len))
5669 _dbus_warn ("error reading name from named type\n");
5676 case DBUS_TYPE_ARRAY:
5680 if (!dbus_message_iter_init_array_iterator (iter, &child_iter, &array_type))
5682 _dbus_warn ("Failed to init array iterator\n");
5686 while (dbus_message_iter_has_next (&child_iter))
5688 if (!check_message_handling_type (&child_iter, array_type))
5690 _dbus_warn ("error in array element\n");
5694 if (!dbus_message_iter_next (&child_iter))
5699 case DBUS_TYPE_DICT:
5704 if (!dbus_message_iter_init_dict_iterator (iter, &child_iter))
5706 _dbus_warn ("Failed to init dict iterator\n");
5710 while ((entry_type = dbus_message_iter_get_arg_type (&child_iter)) != DBUS_TYPE_INVALID)
5712 key = dbus_message_iter_get_dict_key (&child_iter);
5715 _dbus_warn ("error reading dict key\n");
5720 if (!check_message_handling_type (&child_iter, entry_type))
5722 _dbus_warn ("error in dict value\n");
5726 if (!dbus_message_iter_next (&child_iter))
5733 _dbus_warn ("unknown type %d\n", type);
5742 check_message_handling (DBusMessage *message)
5744 DBusMessageIter iter;
5747 dbus_uint32_t client_serial;
5751 client_serial = dbus_message_get_serial (message);
5753 /* can't use set_serial due to the assertions at the start of it */
5754 set_uint_field (message, FIELD_CLIENT_SERIAL,
5757 if (client_serial != dbus_message_get_serial (message))
5759 _dbus_warn ("get/set cycle for client_serial did not succeed\n");
5763 /* If we implement message_set_arg (message, n, value)
5764 * then we would want to test it here
5767 dbus_message_iter_init (message, &iter);
5768 while ((type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID)
5770 if (!check_message_handling_type (&iter, type))
5773 if (!dbus_message_iter_next (&iter))
5784 check_have_valid_message (DBusMessageLoader *loader)
5786 DBusMessage *message;
5792 if (!_dbus_message_loader_queue_messages (loader))
5793 _dbus_assert_not_reached ("no memory to queue messages");
5795 if (_dbus_message_loader_get_is_corrupted (loader))
5797 _dbus_warn ("loader corrupted on message that was expected to be valid\n");
5801 message = _dbus_message_loader_pop_message (loader);
5802 if (message == NULL)
5804 _dbus_warn ("didn't load message that was expected to be valid (message not popped)\n");
5808 if (_dbus_string_get_length (&loader->data) > 0)
5810 _dbus_warn ("had leftover bytes from expected-to-be-valid single message\n");
5814 /* Verify that we're able to properly deal with the message.
5815 * For example, this would detect improper handling of messages
5816 * in nonstandard byte order.
5818 if (!check_message_handling (message))
5825 dbus_message_unref (message);
5831 check_invalid_message (DBusMessageLoader *loader)
5837 if (!_dbus_message_loader_queue_messages (loader))
5838 _dbus_assert_not_reached ("no memory to queue messages");
5840 if (!_dbus_message_loader_get_is_corrupted (loader))
5842 _dbus_warn ("loader not corrupted on message that was expected to be invalid\n");
5853 check_incomplete_message (DBusMessageLoader *loader)
5855 DBusMessage *message;
5861 if (!_dbus_message_loader_queue_messages (loader))
5862 _dbus_assert_not_reached ("no memory to queue messages");
5864 if (_dbus_message_loader_get_is_corrupted (loader))
5866 _dbus_warn ("loader corrupted on message that was expected to be valid (but incomplete)\n");
5870 message = _dbus_message_loader_pop_message (loader);
5871 if (message != NULL)
5873 _dbus_warn ("loaded message that was expected to be incomplete\n");
5881 dbus_message_unref (message);
5886 check_loader_results (DBusMessageLoader *loader,
5887 DBusMessageValidity validity)
5889 if (!_dbus_message_loader_queue_messages (loader))
5890 _dbus_assert_not_reached ("no memory to queue messages");
5894 case _DBUS_MESSAGE_VALID:
5895 return check_have_valid_message (loader);
5896 case _DBUS_MESSAGE_INVALID:
5897 return check_invalid_message (loader);
5898 case _DBUS_MESSAGE_INCOMPLETE:
5899 return check_incomplete_message (loader);
5900 case _DBUS_MESSAGE_UNKNOWN:
5904 _dbus_assert_not_reached ("bad DBusMessageValidity");
5910 * Loads the message in the given message file.
5912 * @param filename filename to load
5913 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
5914 * @param data string to load message into
5915 * @returns #TRUE if the message was loaded
5918 dbus_internal_do_not_use_load_message_file (const DBusString *filename,
5930 _dbus_verbose ("Loading raw %s\n", _dbus_string_get_const_data (filename));
5931 dbus_error_init (&error);
5932 if (!_dbus_file_get_contents (data, filename, &error))
5934 _dbus_warn ("Could not load message file %s: %s\n",
5935 _dbus_string_get_const_data (filename),
5937 dbus_error_free (&error);
5943 if (!_dbus_message_data_load (data, filename))
5945 _dbus_warn ("Could not load message file %s\n",
5946 _dbus_string_get_const_data (filename));
5959 * Tries loading the message in the given message file
5960 * and verifies that DBusMessageLoader can handle it.
5962 * @param filename filename to load
5963 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
5964 * @param expected_validity what the message has to be like to return #TRUE
5965 * @returns #TRUE if the message has the expected validity
5968 dbus_internal_do_not_use_try_message_file (const DBusString *filename,
5970 DBusMessageValidity expected_validity)
5977 if (!_dbus_string_init (&data))
5978 _dbus_assert_not_reached ("could not allocate string\n");
5980 if (!dbus_internal_do_not_use_load_message_file (filename, is_raw,
5984 retval = dbus_internal_do_not_use_try_message_data (&data, expected_validity);
5990 if (_dbus_string_get_length (&data) > 0)
5991 _dbus_verbose_bytes_of_string (&data, 0,
5992 _dbus_string_get_length (&data));
5994 _dbus_warn ("Failed message loader test on %s\n",
5995 _dbus_string_get_const_data (filename));
5998 _dbus_string_free (&data);
6004 * Tries loading the given message data.
6007 * @param data the message data
6008 * @param expected_validity what the message has to be like to return #TRUE
6009 * @returns #TRUE if the message has the expected validity
6012 dbus_internal_do_not_use_try_message_data (const DBusString *data,
6013 DBusMessageValidity expected_validity)
6015 DBusMessageLoader *loader;
6023 /* Write the data one byte at a time */
6025 loader = _dbus_message_loader_new ();
6027 /* check some trivial loader functions */
6028 _dbus_message_loader_ref (loader);
6029 _dbus_message_loader_unref (loader);
6030 _dbus_message_loader_get_max_message_size (loader);
6032 len = _dbus_string_get_length (data);
6033 for (i = 0; i < len; i++)
6037 _dbus_message_loader_get_buffer (loader, &buffer);
6038 _dbus_string_append_byte (buffer,
6039 _dbus_string_get_byte (data, i));
6040 _dbus_message_loader_return_buffer (loader, buffer, 1);
6043 if (!check_loader_results (loader, expected_validity))
6046 _dbus_message_loader_unref (loader);
6049 /* Write the data all at once */
6051 loader = _dbus_message_loader_new ();
6056 _dbus_message_loader_get_buffer (loader, &buffer);
6057 _dbus_string_copy (data, 0, buffer,
6058 _dbus_string_get_length (buffer));
6059 _dbus_message_loader_return_buffer (loader, buffer, 1);
6062 if (!check_loader_results (loader, expected_validity))
6065 _dbus_message_loader_unref (loader);
6068 /* Write the data 2 bytes at a time */
6070 loader = _dbus_message_loader_new ();
6072 len = _dbus_string_get_length (data);
6073 for (i = 0; i < len; i += 2)
6077 _dbus_message_loader_get_buffer (loader, &buffer);
6078 _dbus_string_append_byte (buffer,
6079 _dbus_string_get_byte (data, i));
6081 _dbus_string_append_byte (buffer,
6082 _dbus_string_get_byte (data, i+1));
6083 _dbus_message_loader_return_buffer (loader, buffer, 1);
6086 if (!check_loader_results (loader, expected_validity))
6089 _dbus_message_loader_unref (loader);
6097 _dbus_message_loader_unref (loader);
6103 process_test_subdir (const DBusString *test_base_dir,
6105 DBusMessageValidity validity,
6106 DBusForeachMessageFileFunc function,
6109 DBusString test_directory;
6110 DBusString filename;
6118 if (!_dbus_string_init (&test_directory))
6119 _dbus_assert_not_reached ("didn't allocate test_directory\n");
6121 _dbus_string_init_const (&filename, subdir);
6123 if (!_dbus_string_copy (test_base_dir, 0,
6124 &test_directory, 0))
6125 _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory");
6127 if (!_dbus_concat_dir_and_file (&test_directory, &filename))
6128 _dbus_assert_not_reached ("couldn't allocate full path");
6130 _dbus_string_free (&filename);
6131 if (!_dbus_string_init (&filename))
6132 _dbus_assert_not_reached ("didn't allocate filename string\n");
6134 dbus_error_init (&error);
6135 dir = _dbus_directory_open (&test_directory, &error);
6138 _dbus_warn ("Could not open %s: %s\n",
6139 _dbus_string_get_const_data (&test_directory),
6141 dbus_error_free (&error);
6145 printf ("Testing:\n");
6148 while (_dbus_directory_get_next_file (dir, &filename, &error))
6150 DBusString full_path;
6153 if (!_dbus_string_init (&full_path))
6154 _dbus_assert_not_reached ("couldn't init string");
6156 if (!_dbus_string_copy (&test_directory, 0, &full_path, 0))
6157 _dbus_assert_not_reached ("couldn't copy dir to full_path");
6159 if (!_dbus_concat_dir_and_file (&full_path, &filename))
6160 _dbus_assert_not_reached ("couldn't concat file to dir");
6162 if (_dbus_string_ends_with_c_str (&filename, ".message"))
6164 else if (_dbus_string_ends_with_c_str (&filename, ".message-raw"))
6168 _dbus_verbose ("Skipping non-.message file %s\n",
6169 _dbus_string_get_const_data (&filename));
6170 _dbus_string_free (&full_path);
6175 _dbus_string_get_const_data (&filename));
6177 _dbus_verbose (" expecting %s for %s\n",
6178 validity == _DBUS_MESSAGE_VALID ? "valid" :
6179 (validity == _DBUS_MESSAGE_INVALID ? "invalid" :
6180 (validity == _DBUS_MESSAGE_INCOMPLETE ? "incomplete" : "unknown")),
6181 _dbus_string_get_const_data (&filename));
6183 if (! (*function) (&full_path, is_raw, validity, user_data))
6185 _dbus_string_free (&full_path);
6189 _dbus_string_free (&full_path);
6192 if (dbus_error_is_set (&error))
6194 _dbus_warn ("Could not get next file in %s: %s\n",
6195 _dbus_string_get_const_data (&test_directory),
6197 dbus_error_free (&error);
6206 _dbus_directory_close (dir);
6207 _dbus_string_free (&test_directory);
6208 _dbus_string_free (&filename);
6214 * Runs the given function on every message file in the test suite.
6215 * The function should return #FALSE on test failure or fatal error.
6217 * @param test_data_dir root dir of the test suite data files (top_srcdir/test/data)
6218 * @param func the function to run
6219 * @param user_data data for function
6220 * @returns #FALSE if there's a failure
6223 dbus_internal_do_not_use_foreach_message_file (const char *test_data_dir,
6224 DBusForeachMessageFileFunc func,
6227 DBusString test_directory;
6232 _dbus_string_init_const (&test_directory, test_data_dir);
6234 if (!process_test_subdir (&test_directory, "valid-messages",
6235 _DBUS_MESSAGE_VALID, func, user_data))
6238 if (!process_test_subdir (&test_directory, "invalid-messages",
6239 _DBUS_MESSAGE_INVALID, func, user_data))
6242 if (!process_test_subdir (&test_directory, "incomplete-messages",
6243 _DBUS_MESSAGE_INCOMPLETE, func, user_data))
6250 _dbus_string_free (&test_directory);
6256 verify_test_message (DBusMessage *message)
6258 DBusMessageIter iter, dict;
6260 dbus_int32_t our_int;
6263 dbus_bool_t our_bool;
6264 dbus_uint32_t our_uint32;
6265 dbus_int32_t *our_uint32_array;
6266 int our_uint32_array_len;
6267 dbus_int32_t *our_int32_array;
6268 int our_int32_array_len;
6269 char **our_string_array;
6270 int our_string_array_len;
6271 #ifdef DBUS_HAVE_INT64
6272 dbus_int64_t our_int64;
6273 dbus_uint64_t our_uint64;
6274 dbus_int64_t *our_uint64_array;
6275 int our_uint64_array_len;
6276 dbus_int64_t *our_int64_array;
6277 int our_int64_array_len;
6279 double *our_double_array;
6280 int our_double_array_len;
6281 unsigned char *our_byte_array;
6282 int our_byte_array_len;
6283 unsigned char *our_boolean_array;
6284 int our_boolean_array_len;
6286 dbus_message_iter_init (message, &iter);
6288 dbus_error_init (&error);
6289 if (!dbus_message_iter_get_args (&iter, &error,
6290 DBUS_TYPE_INT32, &our_int,
6291 #ifdef DBUS_HAVE_INT64
6292 DBUS_TYPE_INT64, &our_int64,
6293 DBUS_TYPE_UINT64, &our_uint64,
6295 DBUS_TYPE_STRING, &our_str,
6296 DBUS_TYPE_DOUBLE, &our_double,
6297 DBUS_TYPE_BOOLEAN, &our_bool,
6298 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32,
6299 &our_uint32_array, &our_uint32_array_len,
6300 DBUS_TYPE_ARRAY, DBUS_TYPE_INT32,
6301 &our_int32_array, &our_int32_array_len,
6302 #ifdef DBUS_HAVE_INT64
6303 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT64,
6304 &our_uint64_array, &our_uint64_array_len,
6305 DBUS_TYPE_ARRAY, DBUS_TYPE_INT64,
6306 &our_int64_array, &our_int64_array_len,
6308 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING,
6309 &our_string_array, &our_string_array_len,
6310 DBUS_TYPE_ARRAY, DBUS_TYPE_DOUBLE,
6311 &our_double_array, &our_double_array_len,
6312 DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
6313 &our_byte_array, &our_byte_array_len,
6314 DBUS_TYPE_ARRAY, DBUS_TYPE_BOOLEAN,
6315 &our_boolean_array, &our_boolean_array_len,
6318 _dbus_warn ("error: %s - %s\n", error.name,
6319 (error.message != NULL) ? error.message : "no message");
6320 _dbus_assert_not_reached ("Could not get arguments");
6323 if (our_int != -0x12345678)
6324 _dbus_assert_not_reached ("integers differ!");
6326 #ifdef DBUS_HAVE_INT64
6327 if (our_int64 != -0x123456789abcd)
6328 _dbus_assert_not_reached ("64-bit integers differ!");
6329 if (our_uint64 != 0x123456789abcd)
6330 _dbus_assert_not_reached ("64-bit unsigned integers differ!");
6333 if (our_double != 3.14159)
6334 _dbus_assert_not_reached ("doubles differ!");
6336 if (strcmp (our_str, "Test string") != 0)
6337 _dbus_assert_not_reached ("strings differ!");
6338 dbus_free (our_str);
6341 _dbus_assert_not_reached ("booleans differ");
6343 if (our_uint32_array_len != 4 ||
6344 our_uint32_array[0] != 0x12345678 ||
6345 our_uint32_array[1] != 0x23456781 ||
6346 our_uint32_array[2] != 0x34567812 ||
6347 our_uint32_array[3] != 0x45678123)
6348 _dbus_assert_not_reached ("uint array differs");
6349 dbus_free (our_uint32_array);
6351 if (our_int32_array_len != 4 ||
6352 our_int32_array[0] != 0x12345678 ||
6353 our_int32_array[1] != -0x23456781 ||
6354 our_int32_array[2] != 0x34567812 ||
6355 our_int32_array[3] != -0x45678123)
6356 _dbus_assert_not_reached ("int array differs");
6357 dbus_free (our_int32_array);
6359 #ifdef DBUS_HAVE_INT64
6360 if (our_uint64_array_len != 4 ||
6361 our_uint64_array[0] != 0x12345678 ||
6362 our_uint64_array[1] != 0x23456781 ||
6363 our_uint64_array[2] != 0x34567812 ||
6364 our_uint64_array[3] != 0x45678123)
6365 _dbus_assert_not_reached ("uint64 array differs");
6366 dbus_free (our_uint64_array);
6368 if (our_int64_array_len != 4 ||
6369 our_int64_array[0] != 0x12345678 ||
6370 our_int64_array[1] != -0x23456781 ||
6371 our_int64_array[2] != 0x34567812 ||
6372 our_int64_array[3] != -0x45678123)
6373 _dbus_assert_not_reached ("int64 array differs");
6374 dbus_free (our_int64_array);
6375 #endif /* DBUS_HAVE_INT64 */
6377 if (our_string_array_len != 4)
6378 _dbus_assert_not_reached ("string array has wrong length");
6380 if (strcmp (our_string_array[0], "Foo") != 0 ||
6381 strcmp (our_string_array[1], "bar") != 0 ||
6382 strcmp (our_string_array[2], "") != 0 ||
6383 strcmp (our_string_array[3], "woo woo woo woo") != 0)
6384 _dbus_assert_not_reached ("string array differs");
6386 dbus_free_string_array (our_string_array);
6388 if (our_double_array_len != 3)
6389 _dbus_assert_not_reached ("double array had wrong length");
6391 /* On all IEEE machines (i.e. everything sane) exact equality
6392 * should be preserved over the wire
6394 if (our_double_array[0] != 0.1234 ||
6395 our_double_array[1] != 9876.54321 ||
6396 our_double_array[2] != -300.0)
6397 _dbus_assert_not_reached ("double array had wrong values");
6399 dbus_free (our_double_array);
6401 if (our_byte_array_len != 4)
6402 _dbus_assert_not_reached ("byte array had wrong length");
6404 if (our_byte_array[0] != 'a' ||
6405 our_byte_array[1] != 'b' ||
6406 our_byte_array[2] != 'c' ||
6407 our_byte_array[3] != 234)
6408 _dbus_assert_not_reached ("byte array had wrong values");
6410 dbus_free (our_byte_array);
6412 if (our_boolean_array_len != 5)
6413 _dbus_assert_not_reached ("bool array had wrong length");
6415 if (our_boolean_array[0] != TRUE ||
6416 our_boolean_array[1] != FALSE ||
6417 our_boolean_array[2] != TRUE ||
6418 our_boolean_array[3] != TRUE ||
6419 our_boolean_array[4] != FALSE)
6420 _dbus_assert_not_reached ("bool array had wrong values");
6422 dbus_free (our_boolean_array);
6424 if (!dbus_message_iter_next (&iter))
6425 _dbus_assert_not_reached ("Reached end of arguments");
6427 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
6428 _dbus_assert_not_reached ("not dict type");
6430 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
6431 _dbus_assert_not_reached ("dict iter failed");
6433 our_str = dbus_message_iter_get_dict_key (&dict);
6434 if (our_str == NULL || strcmp (our_str, "test") != 0)
6435 _dbus_assert_not_reached ("wrong dict key");
6436 dbus_free (our_str);
6438 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
6440 _dbus_verbose ("dict entry type: %d\n", dbus_message_iter_get_arg_type (&dict));
6441 _dbus_assert_not_reached ("wrong dict entry type");
6444 if ((our_uint32 = dbus_message_iter_get_uint32 (&dict)) != 0xDEADBEEF)
6446 _dbus_verbose ("dict entry val: %x\n", our_uint32);
6447 _dbus_assert_not_reached ("wrong dict entry value");
6450 if (dbus_message_iter_next (&dict))
6451 _dbus_assert_not_reached ("Didn't reach end of dict");
6453 if (!dbus_message_iter_next (&iter))
6454 _dbus_assert_not_reached ("Reached end of arguments");
6456 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
6457 _dbus_assert_not_reached ("wrong type after dict");
6459 if (dbus_message_iter_get_uint32 (&iter) != 0xCAFEBABE)
6460 _dbus_assert_not_reached ("wrong value after dict");
6462 if (dbus_message_iter_next (&iter))
6463 _dbus_assert_not_reached ("Didn't reach end of arguments");
6467 * @ingroup DBusMessageInternals
6468 * Unit test for DBusMessage.
6470 * @returns #TRUE on success.
6473 _dbus_message_test (const char *test_data_dir)
6475 DBusMessage *message;
6476 DBusMessageLoader *loader;
6477 DBusMessageIter iter, child_iter, child_iter2, child_iter3;
6483 const dbus_uint32_t our_uint32_array[] =
6484 { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
6485 const dbus_uint32_t our_int32_array[] =
6486 { 0x12345678, -0x23456781, 0x34567812, -0x45678123 };
6487 #ifdef DBUS_HAVE_INT64
6488 const dbus_uint64_t our_uint64_array[] =
6489 { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
6490 const dbus_uint64_t our_int64_array[] =
6491 { 0x12345678, -0x23456781, 0x34567812, -0x45678123 };
6493 const char *our_string_array[] = { "Foo", "bar", "", "woo woo woo woo" };
6494 const double our_double_array[] = { 0.1234, 9876.54321, -300.0 };
6495 const unsigned char our_byte_array[] = { 'a', 'b', 'c', 234 };
6496 const unsigned char our_boolean_array[] = { TRUE, FALSE, TRUE, TRUE, FALSE };
6498 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
6500 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
6501 "/org/freedesktop/TestPath",
6502 "Foo.TestInterface",
6504 _dbus_assert (dbus_message_has_destination (message, "org.freedesktop.DBus.TestService"));
6505 _dbus_assert (dbus_message_is_method_call (message, "Foo.TestInterface",
6507 _dbus_message_set_serial (message, 1234);
6508 dbus_message_set_sender (message, "org.foo.bar");
6509 _dbus_assert (dbus_message_has_sender (message, "org.foo.bar"));
6510 dbus_message_set_sender (message, NULL);
6511 _dbus_assert (!dbus_message_has_sender (message, "org.foo.bar"));
6512 _dbus_assert (dbus_message_get_serial (message) == 1234);
6513 _dbus_assert (dbus_message_has_destination (message, "org.freedesktop.DBus.TestService"));
6515 _dbus_assert (dbus_message_get_no_reply (message) == FALSE);
6516 dbus_message_set_no_reply (message, TRUE);
6517 _dbus_assert (dbus_message_get_no_reply (message) == TRUE);
6518 dbus_message_set_no_reply (message, FALSE);
6519 _dbus_assert (dbus_message_get_no_reply (message) == FALSE);
6521 dbus_message_unref (message);
6523 /* Test the vararg functions */
6524 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
6525 "/org/freedesktop/TestPath",
6526 "Foo.TestInterface",
6528 _dbus_message_set_serial (message, 1);
6529 dbus_message_append_args (message,
6530 DBUS_TYPE_INT32, -0x12345678,
6531 #ifdef DBUS_HAVE_INT64
6532 DBUS_TYPE_INT64, -0x123456789abcd,
6533 DBUS_TYPE_UINT64, 0x123456789abcd,
6535 DBUS_TYPE_STRING, "Test string",
6536 DBUS_TYPE_DOUBLE, 3.14159,
6537 DBUS_TYPE_BOOLEAN, TRUE,
6538 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, our_uint32_array,
6539 _DBUS_N_ELEMENTS (our_uint32_array),
6540 DBUS_TYPE_ARRAY, DBUS_TYPE_INT32, our_int32_array,
6541 _DBUS_N_ELEMENTS (our_int32_array),
6542 #ifdef DBUS_HAVE_INT64
6543 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT64, our_uint64_array,
6544 _DBUS_N_ELEMENTS (our_uint64_array),
6545 DBUS_TYPE_ARRAY, DBUS_TYPE_INT64, our_int64_array,
6546 _DBUS_N_ELEMENTS (our_int64_array),
6548 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, our_string_array,
6549 _DBUS_N_ELEMENTS (our_string_array),
6550 DBUS_TYPE_ARRAY, DBUS_TYPE_DOUBLE, our_double_array,
6551 _DBUS_N_ELEMENTS (our_double_array),
6552 DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, our_byte_array,
6553 _DBUS_N_ELEMENTS (our_byte_array),
6554 DBUS_TYPE_ARRAY, DBUS_TYPE_BOOLEAN, our_boolean_array,
6555 _DBUS_N_ELEMENTS (our_boolean_array),
6558 dbus_message_append_iter_init (message, &iter);
6559 dbus_message_iter_append_dict (&iter, &child_iter);
6560 dbus_message_iter_append_dict_key (&child_iter, "test");
6561 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
6562 dbus_message_iter_append_uint32 (&iter, 0xCAFEBABE);
6564 _dbus_verbose_bytes_of_string (&message->header, 0,
6565 _dbus_string_get_length (&message->header));
6566 _dbus_verbose_bytes_of_string (&message->body, 0,
6567 _dbus_string_get_length (&message->body));
6569 verify_test_message (message);
6571 copy = dbus_message_copy (message);
6573 _dbus_assert (message->client_serial == copy->client_serial);
6574 _dbus_assert (message->reply_serial == copy->reply_serial);
6575 _dbus_assert (message->header_padding == copy->header_padding);
6577 _dbus_assert (_dbus_string_get_length (&message->header) ==
6578 _dbus_string_get_length (©->header));
6580 _dbus_assert (_dbus_string_get_length (&message->body) ==
6581 _dbus_string_get_length (©->body));
6583 verify_test_message (copy);
6585 name1 = dbus_message_get_interface (message);
6586 name2 = dbus_message_get_interface (copy);
6588 _dbus_assert (strcmp (name1, name2) == 0);
6590 name1 = dbus_message_get_member (message);
6591 name2 = dbus_message_get_member (copy);
6593 _dbus_assert (strcmp (name1, name2) == 0);
6595 dbus_message_unref (message);
6596 dbus_message_unref (copy);
6598 message = dbus_message_new_method_call ("org.freedesktop.DBus.TestService",
6599 "/org/freedesktop/TestPath",
6600 "Foo.TestInterface",
6603 _dbus_message_set_serial (message, 1);
6604 dbus_message_set_reply_serial (message, 0x12345678);
6606 dbus_message_append_iter_init (message, &iter);
6607 dbus_message_iter_append_string (&iter, "Test string");
6608 dbus_message_iter_append_int32 (&iter, -0x12345678);
6609 dbus_message_iter_append_uint32 (&iter, 0xedd1e);
6610 dbus_message_iter_append_double (&iter, 3.14159);
6612 dbus_message_iter_append_array (&iter, &child_iter, DBUS_TYPE_DOUBLE);
6613 dbus_message_iter_append_double (&child_iter, 1.5);
6614 dbus_message_iter_append_double (&child_iter, 2.5);
6617 dbus_message_iter_append_dict (&iter, &child_iter);
6618 dbus_message_iter_append_dict_key (&child_iter, "test");
6619 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
6621 /* array of array of int32 (in dict) */
6622 dbus_message_iter_append_dict_key (&child_iter, "array");
6623 dbus_message_iter_append_array (&child_iter, &child_iter2, DBUS_TYPE_ARRAY);
6624 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
6625 dbus_message_iter_append_int32 (&child_iter3, 0x12345678);
6626 dbus_message_iter_append_int32 (&child_iter3, 0x23456781);
6627 _dbus_warn ("next call expected to fail with wrong array type\n");
6628 _dbus_assert (!dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_UINT32));
6629 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
6630 dbus_message_iter_append_int32 (&child_iter3, 0x34567812);
6631 dbus_message_iter_append_int32 (&child_iter3, 0x45678123);
6632 dbus_message_iter_append_int32 (&child_iter3, 0x56781234);
6634 dbus_message_iter_append_byte (&iter, 0xF0);
6636 dbus_message_iter_append_nil (&iter);
6638 dbus_message_iter_append_named (&iter, "named",
6641 message_iter_test (message);
6643 /* Message loader test */
6644 _dbus_message_lock (message);
6645 loader = _dbus_message_loader_new ();
6647 /* check ref/unref */
6648 _dbus_message_loader_ref (loader);
6649 _dbus_message_loader_unref (loader);
6651 /* Write the header data one byte at a time */
6652 data = _dbus_string_get_const_data (&message->header);
6653 for (i = 0; i < _dbus_string_get_length (&message->header); i++)
6657 _dbus_message_loader_get_buffer (loader, &buffer);
6658 _dbus_string_append_byte (buffer, data[i]);
6659 _dbus_message_loader_return_buffer (loader, buffer, 1);
6662 /* Write the body data one byte at a time */
6663 data = _dbus_string_get_const_data (&message->body);
6664 for (i = 0; i < _dbus_string_get_length (&message->body); i++)
6668 _dbus_message_loader_get_buffer (loader, &buffer);
6669 _dbus_string_append_byte (buffer, data[i]);
6670 _dbus_message_loader_return_buffer (loader, buffer, 1);
6673 dbus_message_unref (message);
6675 /* Now pop back the message */
6676 if (!_dbus_message_loader_queue_messages (loader))
6677 _dbus_assert_not_reached ("no memory to queue messages");
6679 if (_dbus_message_loader_get_is_corrupted (loader))
6680 _dbus_assert_not_reached ("message loader corrupted");
6682 message = _dbus_message_loader_pop_message (loader);
6684 _dbus_assert_not_reached ("received a NULL message");
6686 if (dbus_message_get_reply_serial (message) != 0x12345678)
6687 _dbus_assert_not_reached ("reply serial fields differ");
6689 message_iter_test (message);
6691 dbus_message_unref (message);
6692 _dbus_message_loader_unref (loader);
6694 /* Now load every message in test_data_dir if we have one */
6695 if (test_data_dir == NULL)
6698 return dbus_internal_do_not_use_foreach_message_file (test_data_dir,
6699 (DBusForeachMessageFileFunc)
6700 dbus_internal_do_not_use_try_message_file,
6704 #endif /* DBUS_BUILD_TESTS */