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"
35 * @defgroup DBusMessageInternals DBusMessage implementation details
36 * @ingroup DBusInternals
37 * @brief DBusMessage private implementation details.
39 * The guts of DBusMessage and its methods.
57 static dbus_bool_t field_is_named[FIELD_LAST] =
59 FALSE, /* FIELD_HEADER_LENGTH */
60 FALSE, /* FIELD_BODY_LENGTH */
61 FALSE, /* FIELD_CLIENT_SERIAL */
62 TRUE, /* FIELD_NAME */
63 TRUE, /* FIELD_SERVICE */
64 TRUE, /* FIELD_SENDER */
65 TRUE /* FIELD_REPLY_SERIAL */
70 int offset; /**< Offset to start of field (location of name of field
76 * @brief Internals of DBusMessage
78 * Object representing a message received from or to be sent to
79 * another application. This is an opaque object, all members
84 dbus_atomic_t refcount; /**< Reference count */
86 DBusString header; /**< Header network data, stored
87 * separately from body so we can
88 * independently realloc it.
91 HeaderField header_fields[FIELD_LAST]; /**< Track the location
92 * of each field in "header"
95 dbus_uint32_t client_serial; /**< Cached client serial value for speed */
96 dbus_uint32_t reply_serial; /**< Cached reply serial value for speed */
98 int header_padding; /**< bytes of alignment in header */
100 DBusString body; /**< Body network data. */
102 char byte_order; /**< Message byte order. */
104 DBusList *size_counters; /**< 0-N DBusCounter used to track message size. */
105 long size_counter_delta; /**< Size we incremented the size counters by. */
107 dbus_uint32_t changed_stamp; /**< Incremented when iterators are invalidated. */
109 unsigned int locked : 1; /**< Message being sent, no modifications allowed. */
113 DBUS_MESSAGE_ITER_TYPE_MESSAGE,
114 DBUS_MESSAGE_ITER_TYPE_ARRAY,
115 DBUS_MESSAGE_ITER_TYPE_DICT
118 /** typedef for internals of message iterator */
119 typedef struct DBusMessageRealIter DBusMessageRealIter;
122 * @brief Internals of DBusMessageIter
124 * Object representing a position in a message. All fields are internal.
126 struct DBusMessageRealIter
128 DBusMessageRealIter *parent_iter; /**< parent iter, or NULL */
129 DBusMessage *message; /**< Message used */
130 dbus_uint32_t changed_stamp; /**< stamp to detect invalid iters */
132 /* This is an int instead of an enum to get a guaranteed size for the dummy: */
133 int type; /**< type of iter */
135 int pos; /**< Current position in the string */
136 int end; /**< position right after the container */
137 int container_start; /**< offset of the start of the container */
138 int container_length_pos; /**< offset of the length of the container */
140 int wrote_dict_key; /**< whether we wrote the dict key for the current dict element */
142 int array_type_pos; /**< pointer to the position of the array element type */
143 int array_type_done; /**< TRUE if the array type is fully finished */
147 * Gets the data to be sent over the network for this message.
148 * The header and then the body should be written out.
149 * This function is guaranteed to always return the same
150 * data once a message is locked (with _dbus_message_lock()).
152 * @param message the message.
153 * @param header return location for message header data.
154 * @param body return location for message body data.
157 _dbus_message_get_network_data (DBusMessage *message,
158 const DBusString **header,
159 const DBusString **body)
161 _dbus_assert (message->locked);
163 *header = &message->header;
164 *body = &message->body;
168 clear_header_padding (DBusMessage *message)
170 _dbus_string_shorten (&message->header,
171 message->header_padding);
172 message->header_padding = 0;
176 append_header_padding (DBusMessage *message)
179 old_len = _dbus_string_get_length (&message->header);
180 if (!_dbus_string_align_length (&message->header, 8))
183 message->header_padding = _dbus_string_get_length (&message->header) - old_len;
189 adjust_field_offsets (DBusMessage *message,
199 while (i < FIELD_LAST)
201 if (message->header_fields[i].offset > offsets_after)
202 message->header_fields[i].offset += delta;
208 #ifdef DBUS_BUILD_TESTS
209 /* tests-only until it's actually used */
211 get_int_field (DBusMessage *message,
216 _dbus_assert (field < FIELD_LAST);
218 offset = message->header_fields[field].offset;
221 return -1; /* useless if -1 is a valid value of course */
223 return _dbus_demarshal_int32 (&message->header,
231 get_uint_field (DBusMessage *message,
236 _dbus_assert (field < FIELD_LAST);
238 offset = message->header_fields[field].offset;
241 return -1; /* useless if -1 is a valid value of course */
243 return _dbus_demarshal_uint32 (&message->header,
250 get_string_field (DBusMessage *message,
257 offset = message->header_fields[field].offset;
259 _dbus_assert (field < FIELD_LAST);
264 /* offset points to string length, string data follows it */
265 /* FIXME _dbus_demarshal_const_string() that returned
266 * a reference to the string plus its len might be nice.
270 *len = _dbus_demarshal_uint32 (&message->header,
275 data = _dbus_string_get_const_data (&message->header);
277 return data + (offset + 4);
280 #ifdef DBUS_BUILD_TESTS
282 append_int_field (DBusMessage *message,
289 _dbus_assert (!message->locked);
291 clear_header_padding (message);
293 orig_len = _dbus_string_get_length (&message->header);
295 if (!_dbus_string_align_length (&message->header, 4))
298 if (!_dbus_string_append_len (&message->header, name, 4))
301 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_INT32))
304 if (!_dbus_string_align_length (&message->header, 4))
307 message->header_fields[FIELD_REPLY_SERIAL].offset =
308 _dbus_string_get_length (&message->header);
310 if (!_dbus_marshal_int32 (&message->header, message->byte_order,
314 if (!append_header_padding (message))
320 message->header_fields[field].offset = -1;
321 _dbus_string_set_length (&message->header, orig_len);
323 /* this must succeed because it was allocated on function entry and
324 * DBusString doesn't ever realloc smaller
326 if (!append_header_padding (message))
327 _dbus_assert_not_reached ("failed to reappend header padding");
333 append_uint_field (DBusMessage *message,
340 _dbus_assert (!message->locked);
342 clear_header_padding (message);
344 orig_len = _dbus_string_get_length (&message->header);
346 if (!_dbus_string_align_length (&message->header, 4))
349 if (!_dbus_string_append_len (&message->header, name, 4))
352 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_UINT32))
355 if (!_dbus_string_align_length (&message->header, 4))
358 message->header_fields[FIELD_REPLY_SERIAL].offset =
359 _dbus_string_get_length (&message->header);
361 if (!_dbus_marshal_uint32 (&message->header, message->byte_order,
365 if (!append_header_padding (message))
371 message->header_fields[field].offset = -1;
372 _dbus_string_set_length (&message->header, orig_len);
374 /* this must succeed because it was allocated on function entry and
375 * DBusString doesn't ever realloc smaller
377 if (!append_header_padding (message))
378 _dbus_assert_not_reached ("failed to reappend header padding");
383 append_string_field (DBusMessage *message,
390 _dbus_assert (!message->locked);
392 clear_header_padding (message);
394 orig_len = _dbus_string_get_length (&message->header);
396 if (!_dbus_string_align_length (&message->header, 4))
399 if (!_dbus_string_append_len (&message->header, name, 4))
402 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_STRING))
405 if (!_dbus_string_align_length (&message->header, 4))
408 message->header_fields[field].offset =
409 _dbus_string_get_length (&message->header);
411 if (!_dbus_marshal_string (&message->header, message->byte_order,
415 if (!append_header_padding (message))
421 message->header_fields[field].offset = -1;
422 _dbus_string_set_length (&message->header, orig_len);
424 /* this must succeed because it was allocated on function entry and
425 * DBusString doesn't ever realloc smaller
427 if (!append_header_padding (message))
428 _dbus_assert_not_reached ("failed to reappend header padding");
433 #ifdef DBUS_BUILD_TESTS
434 /* This isn't used, but building it when tests are enabled just to
435 * keep it compiling if we need it in future
438 delete_int_or_uint_field (DBusMessage *message,
441 int offset = message->header_fields[field].offset;
443 _dbus_assert (!message->locked);
444 _dbus_assert (field_is_named[field]);
449 clear_header_padding (message);
451 /* The field typecode and name take up 8 bytes */
452 _dbus_string_delete (&message->header,
456 message->header_fields[field].offset = -1;
458 adjust_field_offsets (message,
462 append_header_padding (message);
467 delete_string_field (DBusMessage *message,
470 int offset = message->header_fields[field].offset;
474 _dbus_assert (!message->locked);
475 _dbus_assert (field_is_named[field]);
480 clear_header_padding (message);
482 get_string_field (message, field, &len);
484 /* The field typecode and name take up 8 bytes, and the nul
485 * termination is 1 bytes, string length integer is 4 bytes
487 delete_len = 8 + 4 + 1 + len;
489 _dbus_string_delete (&message->header,
493 message->header_fields[field].offset = -1;
495 adjust_field_offsets (message,
499 append_header_padding (message);
502 #ifdef DBUS_BUILD_TESTS
504 set_int_field (DBusMessage *message,
508 int offset = message->header_fields[field].offset;
510 _dbus_assert (!message->locked);
514 /* need to append the field */
519 _dbus_assert_not_reached ("appending an int field we don't support appending");
525 _dbus_marshal_set_int32 (&message->header,
535 set_uint_field (DBusMessage *message,
539 int offset = message->header_fields[field].offset;
541 _dbus_assert (!message->locked);
545 /* need to append the field */
549 case FIELD_REPLY_SERIAL:
550 return append_uint_field (message, field,
551 DBUS_HEADER_FIELD_REPLY,
554 _dbus_assert_not_reached ("appending a uint field we don't support appending");
560 _dbus_marshal_set_uint32 (&message->header,
569 set_string_field (DBusMessage *message,
573 int offset = message->header_fields[field].offset;
575 _dbus_assert (!message->locked);
576 _dbus_assert (value != NULL);
580 /* need to append the field */
585 return append_string_field (message, field,
586 DBUS_HEADER_FIELD_SENDER,
589 _dbus_assert_not_reached ("appending a string field we don't support appending");
600 clear_header_padding (message);
602 old_len = _dbus_string_get_length (&message->header);
604 len = strlen (value);
606 _dbus_string_init_const_len (&v, value,
607 len + 1); /* include nul */
608 if (!_dbus_marshal_set_string (&message->header,
614 new_len = _dbus_string_get_length (&message->header);
616 adjust_field_offsets (message,
620 if (!append_header_padding (message))
626 /* this must succeed because it was allocated on function entry and
627 * DBusString doesn't ever realloc smaller
629 if (!append_header_padding (message))
630 _dbus_assert_not_reached ("failed to reappend header padding");
637 * Sets the serial number of a message.
638 * This can only be done once on a message.
640 * @param message the message
641 * @param serial the serial
644 _dbus_message_set_serial (DBusMessage *message,
647 _dbus_assert (!message->locked);
648 _dbus_assert (dbus_message_get_serial (message) == 0);
650 set_uint_field (message, FIELD_CLIENT_SERIAL,
652 message->client_serial = serial;
656 * Sets the reply serial of a message (the client serial
657 * of the message this is a reply to).
659 * @param message the message
660 * @param reply_serial the client serial
661 * @returns #FALSE if not enough memory
664 dbus_message_set_reply_serial (DBusMessage *message,
665 dbus_uint32_t reply_serial)
667 _dbus_assert (!message->locked);
669 if (set_uint_field (message, FIELD_REPLY_SERIAL,
672 message->reply_serial = reply_serial;
680 * Returns the serial of a message or -1 if none has been specified.
681 * The message's serial number is provided by the application sending
682 * the message and is used to identify replies to this message.
684 * @param message the message
685 * @returns the client serial
688 dbus_message_get_serial (DBusMessage *message)
690 return message->client_serial;
694 * Returns the serial that the message is
695 * a reply to or 0 if none.
697 * @param message the message
698 * @returns the reply serial
701 dbus_message_get_reply_serial (DBusMessage *message)
703 return message->reply_serial;
707 * Adds a counter to be incremented immediately with the
708 * size of this message, and decremented by the size
709 * of this message when this message if finalized.
710 * The link contains a counter with its refcount already
711 * incremented, but the counter itself not incremented.
712 * Ownership of link and counter refcount is passed to
715 * @param message the message
716 * @param link link with counter as data
719 _dbus_message_add_size_counter_link (DBusMessage *message,
722 /* right now we don't recompute the delta when message
723 * size changes, and that's OK for current purposes
724 * I think, but could be important to change later.
725 * Do recompute it whenever there are no outstanding counters,
726 * since it's basically free.
728 if (message->size_counters == NULL)
730 message->size_counter_delta =
731 _dbus_string_get_length (&message->header) +
732 _dbus_string_get_length (&message->body);
735 _dbus_verbose ("message has size %ld\n",
736 message->size_counter_delta);
740 _dbus_list_append_link (&message->size_counters, link);
742 _dbus_counter_adjust (link->data, message->size_counter_delta);
746 * Adds a counter to be incremented immediately with the
747 * size of this message, and decremented by the size
748 * of this message when this message if finalized.
750 * @param message the message
751 * @param counter the counter
752 * @returns #FALSE if no memory
755 _dbus_message_add_size_counter (DBusMessage *message,
756 DBusCounter *counter)
760 link = _dbus_list_alloc_link (counter);
764 _dbus_counter_ref (counter);
765 _dbus_message_add_size_counter_link (message, link);
771 * Removes a counter tracking the size of this message, and decrements
772 * the counter by the size of this message.
774 * @param message the message
775 * @param counter the counter
778 _dbus_message_remove_size_counter (DBusMessage *message,
779 DBusCounter *counter)
781 if (!_dbus_list_remove_last (&message->size_counters,
783 _dbus_assert_not_reached ("Removed a message size counter that was not added");
785 _dbus_counter_adjust (counter, message->size_counter_delta);
787 _dbus_counter_unref (counter);
791 dbus_message_create_header (DBusMessage *message,
797 if (!_dbus_string_append_byte (&message->header, message->byte_order))
801 if (!_dbus_string_append_byte (&message->header, flags))
804 if (!_dbus_string_append_byte (&message->header, DBUS_MAJOR_PROTOCOL_VERSION))
807 if (!_dbus_string_append_byte (&message->header, 0))
810 message->header_fields[FIELD_HEADER_LENGTH].offset = 4;
811 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
814 message->header_fields[FIELD_BODY_LENGTH].offset = 8;
815 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
818 message->header_fields[FIELD_CLIENT_SERIAL].offset = 12;
819 if (!_dbus_marshal_int32 (&message->header, message->byte_order, -1))
822 /* Marshal message service */
825 if (!append_string_field (message,
827 DBUS_HEADER_FIELD_SERVICE,
832 _dbus_assert (name != NULL);
833 if (!append_string_field (message,
835 DBUS_HEADER_FIELD_NAME,
843 * Locks a message. Allows checking that applications don't keep a
844 * reference to a message in the outgoing queue and change it
845 * underneath us. Messages are locked when they enter the outgoing
846 * queue (dbus_connection_send_message()), and the library complains
847 * if the message is modified while locked.
849 * @param message the message to lock.
852 _dbus_message_lock (DBusMessage *message)
854 if (!message->locked)
856 /* Fill in our lengths */
857 set_uint_field (message,
859 _dbus_string_get_length (&message->header));
861 set_uint_field (message,
863 _dbus_string_get_length (&message->body));
865 message->locked = TRUE;
872 * @defgroup DBusMessage DBusMessage
874 * @brief Message to be sent or received over a DBusConnection.
876 * A DBusMessage is the most basic unit of communication over a
877 * DBusConnection. A DBusConnection represents a stream of messages
878 * received from a remote application, and a stream of messages
879 * sent to a remote application.
885 * @typedef DBusMessage
887 * Opaque data type representing a message received from or to be
888 * sent to another application.
892 dbus_message_new_empty_header (void)
894 DBusMessage *message;
897 message = dbus_new0 (DBusMessage, 1);
901 message->refcount = 1;
902 message->byte_order = DBUS_COMPILER_BYTE_ORDER;
903 message->client_serial = 0;
904 message->reply_serial = 0;
907 while (i < FIELD_LAST)
909 message->header_fields[i].offset = -1;
913 if (!_dbus_string_init (&message->header))
919 if (!_dbus_string_init (&message->body))
921 _dbus_string_free (&message->header);
931 * Constructs a new message. Returns #NULL if memory can't be
932 * allocated for the message. The service may be #NULL in which case
933 * no service is set; this is appropriate when using D-BUS in a
934 * peer-to-peer context (no message bus).
936 * @todo reverse the arguments, first 'name' then 'service'
937 * as 'name' is more fundamental
939 * @param service service that the message should be sent to or #NULL
940 * @param name name of the message
941 * @returns a new DBusMessage, free with dbus_message_unref()
942 * @see dbus_message_unref()
945 dbus_message_new (const char *service,
948 DBusMessage *message;
950 message = dbus_message_new_empty_header ();
954 if (!dbus_message_create_header (message, service, name))
956 dbus_message_unref (message);
964 * Constructs a message that is a reply to some other
965 * message. Returns #NULL if memory can't be allocated
968 * @param original_message the message which the created
969 * message is a reply to.
970 * @returns a new DBusMessage, free with dbus_message_unref()
971 * @see dbus_message_new(), dbus_message_unref()
974 dbus_message_new_reply (DBusMessage *original_message)
976 DBusMessage *message;
977 const char *sender, *name;
979 sender = get_string_field (original_message,
981 name = get_string_field (original_message,
984 /* sender is allowed to be null here in peer-to-peer case */
986 message = dbus_message_new (sender, name);
991 if (!dbus_message_set_reply_serial (message,
992 dbus_message_get_serial (original_message)))
994 dbus_message_unref (message);
1002 * Creates a new message that is an error reply to a certain message.
1004 * @param original_message the original message
1005 * @param error_name the error name
1006 * @param error_message the error message string
1007 * @returns a new error message
1010 dbus_message_new_error_reply (DBusMessage *original_message,
1011 const char *error_name,
1012 const char *error_message)
1014 DBusMessage *message;
1016 DBusMessageIter iter;
1018 sender = get_string_field (original_message,
1019 FIELD_SENDER, NULL);
1021 _dbus_assert (sender != NULL);
1023 message = dbus_message_new (sender, error_name);
1025 if (message == NULL)
1028 if (!dbus_message_set_reply_serial (message,
1029 dbus_message_get_serial (original_message)))
1031 dbus_message_unref (message);
1035 dbus_message_append_iter_init (message, &iter);
1036 if (!dbus_message_iter_append_string (&iter, error_message))
1038 dbus_message_unref (message);
1042 dbus_message_set_is_error (message, TRUE);
1048 * Creates a new message that is an exact replica of the message
1049 * specified, except that its refcount is set to 1.
1051 * @param message the message.
1052 * @returns the new message.
1055 dbus_message_copy (const DBusMessage *message)
1057 DBusMessage *retval;
1060 retval = dbus_new0 (DBusMessage, 1);
1064 retval->refcount = 1;
1065 retval->byte_order = message->byte_order;
1066 retval->client_serial = message->client_serial;
1067 retval->reply_serial = message->reply_serial;
1068 retval->header_padding = message->header_padding;
1069 retval->locked = FALSE;
1071 if (!_dbus_string_init (&retval->header))
1077 if (!_dbus_string_init (&retval->body))
1079 _dbus_string_free (&retval->header);
1084 if (!_dbus_string_copy (&message->header, 0,
1085 &retval->header, 0))
1087 _dbus_string_free (&retval->header);
1088 _dbus_string_free (&retval->body);
1094 if (!_dbus_string_copy (&message->body, 0,
1097 _dbus_string_free (&retval->header);
1098 _dbus_string_free (&retval->body);
1104 for (i = 0; i < FIELD_LAST; i++)
1106 retval->header_fields[i].offset = message->header_fields[i].offset;
1114 * Increments the reference count of a DBusMessage.
1116 * @param message The message
1117 * @see dbus_message_unref
1120 dbus_message_ref (DBusMessage *message)
1122 dbus_atomic_t refcount;
1124 refcount = _dbus_atomic_inc (&message->refcount);
1125 _dbus_assert (refcount > 1);
1129 free_size_counter (void *element,
1132 DBusCounter *counter = element;
1133 DBusMessage *message = data;
1135 _dbus_counter_adjust (counter, - message->size_counter_delta);
1137 _dbus_counter_unref (counter);
1141 * Decrements the reference count of a DBusMessage.
1143 * @param message The message
1144 * @see dbus_message_ref
1147 dbus_message_unref (DBusMessage *message)
1149 dbus_atomic_t refcount;
1151 refcount = _dbus_atomic_dec (&message->refcount);
1153 _dbus_assert (refcount >= 0);
1157 _dbus_list_foreach (&message->size_counters,
1158 free_size_counter, message);
1159 _dbus_list_clear (&message->size_counters);
1161 _dbus_string_free (&message->header);
1162 _dbus_string_free (&message->body);
1164 dbus_free (message);
1169 * Gets the name of a message.
1171 * @param message the message
1172 * @returns the message name (should not be freed)
1175 dbus_message_get_name (DBusMessage *message)
1177 return get_string_field (message, FIELD_NAME, NULL);
1181 * Gets the destination service of a message.
1183 * @todo I think if we have set_sender/get_sender,
1184 * this function might be better named set_destination/
1185 * get_destination for clarity, as the sender
1186 * is also a service name.
1188 * @param message the message
1189 * @returns the message destination service (should not be freed)
1192 dbus_message_get_service (DBusMessage *message)
1194 return get_string_field (message, FIELD_SERVICE, NULL);
1198 * Appends fields to a message given a variable argument
1199 * list. The variable argument list should contain the type
1200 * of the argument followed by the value to add.
1201 * Array values are specified by a int typecode followed by a pointer
1202 * to the array followed by an int giving the length of the array.
1203 * The argument list must be terminated with 0.
1205 * This function doesn't support dicts or non-fundamental arrays.
1207 * @param message the message
1208 * @param first_arg_type type of the first argument
1209 * @param ... value of first argument, list of additional type-value pairs
1210 * @returns #TRUE on success
1213 dbus_message_append_args (DBusMessage *message,
1220 va_start (var_args, first_arg_type);
1221 retval = dbus_message_append_args_valist (message,
1230 * This function takes a va_list for use by language bindings
1232 * @todo: Shouldn't this function clean up the changes to the message
1235 * @see dbus_message_append_args.
1236 * @param message the message
1237 * @param first_arg_type type of first argument
1238 * @param var_args value of first argument, then list of type/value pairs
1239 * @returns #TRUE on success
1242 dbus_message_append_args_valist (DBusMessage *message,
1247 DBusMessageIter iter;
1249 old_len = _dbus_string_get_length (&message->body);
1251 type = first_arg_type;
1253 dbus_message_append_iter_init (message, &iter);
1260 if (!dbus_message_iter_append_nil (&iter))
1263 case DBUS_TYPE_BOOLEAN:
1264 if (!dbus_message_iter_append_boolean (&iter, va_arg (var_args, dbus_bool_t)))
1267 case DBUS_TYPE_INT32:
1268 if (!dbus_message_iter_append_int32 (&iter, va_arg (var_args, dbus_int32_t)))
1271 case DBUS_TYPE_UINT32:
1272 if (!dbus_message_iter_append_uint32 (&iter, va_arg (var_args, dbus_uint32_t)))
1275 case DBUS_TYPE_DOUBLE:
1276 if (!dbus_message_iter_append_double (&iter, va_arg (var_args, double)))
1279 case DBUS_TYPE_STRING:
1280 if (!dbus_message_iter_append_string (&iter, va_arg (var_args, const char *)))
1283 case DBUS_TYPE_NAMED:
1286 unsigned char *data;
1289 name = va_arg (var_args, const char *);
1290 data = va_arg (var_args, unsigned char *);
1291 len = va_arg (var_args, int);
1293 if (!dbus_message_iter_append_named (&iter, name, data, len))
1297 case DBUS_TYPE_ARRAY:
1302 type = va_arg (var_args, int);
1303 data = va_arg (var_args, void *);
1304 len = va_arg (var_args, int);
1308 case DBUS_TYPE_BYTE:
1309 if (!dbus_message_iter_append_byte_array (&iter, (unsigned char *)data, len))
1312 case DBUS_TYPE_BOOLEAN:
1313 if (!dbus_message_iter_append_boolean_array (&iter, (unsigned char *)data, len))
1316 case DBUS_TYPE_INT32:
1317 if (!dbus_message_iter_append_int32_array (&iter, (dbus_int32_t *)data, len))
1320 case DBUS_TYPE_UINT32:
1321 if (!dbus_message_iter_append_uint32_array (&iter, (dbus_uint32_t *)data, len))
1324 case DBUS_TYPE_DOUBLE:
1325 if (!dbus_message_iter_append_double_array (&iter, (double *)data, len))
1328 case DBUS_TYPE_STRING:
1329 if (!dbus_message_iter_append_string_array (&iter, (const char **)data, len))
1333 case DBUS_TYPE_ARRAY:
1334 case DBUS_TYPE_NAMED:
1335 case DBUS_TYPE_DICT:
1336 _dbus_warn ("dbus_message_append_args_valist doesn't support recursive arrays\n");
1339 _dbus_warn ("Unknown field type %d\n", type);
1345 case DBUS_TYPE_DICT:
1346 _dbus_warn ("dbus_message_append_args_valist doesn't support dicts\n");
1349 _dbus_warn ("Unknown field type %d\n", type);
1353 type = va_arg (var_args, int);
1364 * Gets arguments from a message given a variable argument list.
1365 * The variable argument list should contain the type of the
1366 * argumen followed by a pointer to where the value should be
1367 * stored. The list is terminated with 0.
1369 * @param message the message
1370 * @param error error to be filled in on failure
1371 * @param first_arg_type the first argument type
1372 * @param ... location for first argument value, then list of type-location pairs
1373 * @returns #FALSE if the error was set
1376 dbus_message_get_args (DBusMessage *message,
1384 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1386 va_start (var_args, first_arg_type);
1387 retval = dbus_message_get_args_valist (message, error, first_arg_type, var_args);
1394 * This function takes a va_list for use by language bindings
1396 * @todo We need to free the argument data when an error occurs.
1398 * @see dbus_message_get_args
1399 * @param message the message
1400 * @param error error to be filled in
1401 * @param first_arg_type type of the first argument
1402 * @param var_args return location for first argument, followed by list of type/location pairs
1403 * @returns #FALSE if error was set
1406 dbus_message_get_args_valist (DBusMessage *message,
1411 DBusMessageIter iter;
1413 dbus_message_iter_init (message, &iter);
1414 return dbus_message_iter_get_args_valist (&iter, error, first_arg_type, var_args);
1418 * Gets arguments from a message iterator given a variable argument list.
1419 * The variable argument list should contain the type of the
1420 * argumen followed by a pointer to where the value should be
1421 * stored. The list is terminated with 0.
1423 * @param iter the message iterator
1424 * @param error error to be filled in on failure
1425 * @param first_arg_type the first argument type
1426 * @param ... location for first argument value, then list of type-location pairs
1427 * @returns #FALSE if the error was set
1430 dbus_message_iter_get_args (DBusMessageIter *iter,
1438 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1440 va_start (var_args, first_arg_type);
1441 retval = dbus_message_iter_get_args_valist (iter, error, first_arg_type, var_args);
1448 * This function takes a va_list for use by language bindings
1450 * @todo this function (or some lower-level non-convenience function)
1451 * needs better error handling; should allow the application to
1452 * distinguish between out of memory, and bad data from the remote
1453 * app. It also needs to not leak a bunch of args when it gets
1454 * to the arg that's bad, as that would be a security hole
1455 * (allow one app to force another to leak memory)
1457 * @todo We need to free the argument data when an error occurs.
1459 * @see dbus_message_get_args
1460 * @param iter the message iter
1461 * @param error error to be filled in
1462 * @param first_arg_type type of the first argument
1463 * @param var_args return location for first argument, followed by list of type/location pairs
1464 * @returns #FALSE if error was set
1467 dbus_message_iter_get_args_valist (DBusMessageIter *iter,
1472 int spec_type, msg_type, i;
1475 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1479 spec_type = first_arg_type;
1482 while (spec_type != 0)
1484 msg_type = dbus_message_iter_get_arg_type (iter);
1486 if (msg_type != spec_type)
1488 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1489 "Argument %d is specified to be of type \"%s\", but "
1490 "is actually of type \"%s\"\n", i,
1491 _dbus_type_to_string (spec_type),
1492 _dbus_type_to_string (msg_type));
1501 case DBUS_TYPE_BYTE:
1505 ptr = va_arg (var_args, unsigned char *);
1507 *ptr = dbus_message_iter_get_byte (iter);
1510 case DBUS_TYPE_BOOLEAN:
1514 ptr = va_arg (var_args, dbus_bool_t *);
1516 *ptr = dbus_message_iter_get_boolean (iter);
1519 case DBUS_TYPE_INT32:
1523 ptr = va_arg (var_args, dbus_int32_t *);
1525 *ptr = dbus_message_iter_get_int32 (iter);
1528 case DBUS_TYPE_UINT32:
1532 ptr = va_arg (var_args, dbus_uint32_t *);
1534 *ptr = dbus_message_iter_get_uint32 (iter);
1538 case DBUS_TYPE_DOUBLE:
1542 ptr = va_arg (var_args, double *);
1544 *ptr = dbus_message_iter_get_double (iter);
1548 case DBUS_TYPE_STRING:
1552 ptr = va_arg (var_args, char **);
1554 *ptr = dbus_message_iter_get_string (iter);
1558 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1565 case DBUS_TYPE_NAMED:
1568 unsigned char **data;
1571 name = va_arg (var_args, char **);
1572 data = va_arg (var_args, unsigned char **);
1573 len = va_arg (var_args, int *);
1575 if (!dbus_message_iter_get_named (iter, name, data, len))
1577 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1582 case DBUS_TYPE_ARRAY:
1587 type = va_arg (var_args, int);
1588 data = va_arg (var_args, void *);
1589 len = va_arg (var_args, int *);
1591 if (dbus_message_iter_get_array_type (iter) != type)
1593 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1594 "Argument %d is specified to be of type \"array of %s\", but "
1595 "is actually of type \"array of %s\"\n", i,
1596 _dbus_type_to_string (type),
1597 _dbus_type_to_string (dbus_message_iter_get_array_type (iter)));
1603 case DBUS_TYPE_BYTE:
1604 if (!dbus_message_iter_get_byte_array (iter, (unsigned char **)data, len))
1606 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1610 case DBUS_TYPE_BOOLEAN:
1611 if (!dbus_message_iter_get_boolean_array (iter, (unsigned char **)data, len))
1613 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1617 case DBUS_TYPE_INT32:
1618 if (!dbus_message_iter_get_int32_array (iter, (dbus_int32_t **)data, len))
1620 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1624 case DBUS_TYPE_UINT32:
1625 if (!dbus_message_iter_get_uint32_array (iter, (dbus_uint32_t **)data, len))
1627 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1631 case DBUS_TYPE_DOUBLE:
1632 if (!dbus_message_iter_get_double_array (iter, (double **)data, len))
1634 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1638 case DBUS_TYPE_STRING:
1639 if (!dbus_message_iter_get_string_array (iter, (char ***)data, len))
1641 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1646 case DBUS_TYPE_ARRAY:
1647 case DBUS_TYPE_NAMED:
1648 case DBUS_TYPE_DICT:
1649 _dbus_warn ("dbus_message_get_args_valist doesn't support recursive arrays\n");
1650 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1653 _dbus_warn ("Unknown field type %d\n", type);
1654 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1659 case DBUS_TYPE_DICT:
1660 _dbus_warn ("dbus_message_get_args_valist doesn't support dicts\n");
1661 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1664 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1665 _dbus_warn ("Unknown field type %d\n", spec_type);
1669 spec_type = va_arg (var_args, int);
1670 if (spec_type != 0 && !dbus_message_iter_next (iter))
1672 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1673 "Message has only %d arguments, but more were expected", i);
1689 * Initializes a DBusMessageIter representing the arguments of the
1690 * message passed in.
1692 * @param message the message
1693 * @param iter pointer to an iterator to initialize
1696 dbus_message_iter_init (DBusMessage *message,
1697 DBusMessageIter *iter)
1699 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1701 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
1703 real->message = message;
1704 real->parent_iter = NULL;
1705 real->changed_stamp = message->changed_stamp;
1707 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
1709 real->end = _dbus_string_get_length (&message->body);
1711 real->container_start = 0;
1712 real->container_length_pos = 0;
1713 real->wrote_dict_key = 0;
1714 real->array_type_pos = 0;
1718 dbus_message_iter_check (DBusMessageRealIter *iter)
1720 if (iter->changed_stamp != iter->message->changed_stamp)
1721 _dbus_warn ("dbus iterator check failed: invalid iterator\n");
1722 if (iter->pos < 0 || iter->pos > iter->end)
1723 _dbus_warn ("dbus iterator check failed: invalid position\n");
1727 skip_array_type (DBusMessageRealIter *iter, int pos)
1733 data = _dbus_string_get_const_data_len (&iter->message->body,
1736 while (*data == DBUS_TYPE_ARRAY);
1742 dbus_message_iter_get_data_start (DBusMessageRealIter *iter, int *type)
1749 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
1750 data = _dbus_string_get_const_data_len (&iter->message->body,
1752 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1755 *type = DBUS_TYPE_INVALID;
1757 return skip_array_type (iter, iter->pos);
1759 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
1760 data = _dbus_string_get_const_data_len (&iter->message->body,
1761 iter->array_type_pos, 1);
1762 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1765 *type = DBUS_TYPE_INVALID;
1769 case DBUS_MESSAGE_ITER_TYPE_DICT:
1770 /* Get the length of the string */
1771 len = _dbus_demarshal_uint32 (&iter->message->body,
1772 iter->message->byte_order,
1774 pos = pos + len + 1;
1776 data = _dbus_string_get_const_data_len (&iter->message->body,
1778 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1781 *type = DBUS_TYPE_INVALID;
1783 return skip_array_type (iter, pos);
1786 _dbus_assert_not_reached ("Invalid iter type");
1789 *type = DBUS_TYPE_INVALID;
1795 * Checks if an iterator has any more fields.
1797 * @param iter the message iter
1798 * @returns #TRUE if there are more fields
1802 dbus_message_iter_has_next (DBusMessageIter *iter)
1804 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1808 dbus_message_iter_check (real);
1810 if (real->pos >= real->end)
1813 pos = dbus_message_iter_get_data_start (real, &type);
1815 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
1816 real->message->byte_order,
1817 type, pos, &end_pos))
1820 if (end_pos >= real->end)
1827 * Moves the iterator to the next field.
1829 * @param iter The message iter
1830 * @returns #TRUE if the iterator was moved to the next field
1833 dbus_message_iter_next (DBusMessageIter *iter)
1835 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1839 dbus_message_iter_check (real);
1841 pos = dbus_message_iter_get_data_start (real, &type);
1843 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
1844 real->message->byte_order,
1845 type, pos, &end_pos))
1848 if (end_pos >= real->end)
1851 real->pos = end_pos;
1857 * Returns the argument type of the argument that the
1858 * message iterator points at.
1860 * @param iter the message iter
1861 * @returns the field type
1864 dbus_message_iter_get_arg_type (DBusMessageIter *iter)
1866 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1869 dbus_message_iter_check (real);
1871 if (real->pos >= real->end)
1872 return DBUS_TYPE_INVALID;
1874 pos = dbus_message_iter_get_data_start (real, &type);
1880 iter_get_array_type (DBusMessageRealIter *iter, int *array_type_pos)
1883 int _array_type_pos;
1888 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
1889 _array_type_pos = iter->pos + 1;
1891 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
1892 _array_type_pos = iter->array_type_pos + 1;
1894 case DBUS_MESSAGE_ITER_TYPE_DICT:
1895 /* Get the length of the string */
1896 len = _dbus_demarshal_uint32 (&iter->message->body,
1897 iter->message->byte_order,
1899 pos = pos + len + 1;
1900 data = _dbus_string_get_const_data_len (&iter->message->body,
1902 _array_type_pos = pos + 1;
1905 _dbus_assert_not_reached ("wrong iter type");
1906 return DBUS_TYPE_INVALID;
1909 if (array_type_pos != NULL)
1910 *array_type_pos = _array_type_pos;
1912 data = _dbus_string_get_const_data_len (&iter->message->body,
1913 _array_type_pos, 1);
1914 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1917 return DBUS_TYPE_INVALID;
1922 * Returns the element type of the array that the
1923 * message iterator points at. Note that you need
1924 * to check that the iterator points to an array
1925 * prior to using this function.
1927 * @param iter the message iter
1928 * @returns the field type
1931 dbus_message_iter_get_array_type (DBusMessageIter *iter)
1933 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1936 dbus_message_iter_check (real);
1938 if (real->pos >= real->end)
1939 return DBUS_TYPE_INVALID;
1941 pos = dbus_message_iter_get_data_start (real, &type);
1943 _dbus_assert (type == DBUS_TYPE_ARRAY);
1945 return iter_get_array_type (real, NULL);
1950 * Returns the string value that an iterator may point to.
1951 * Note that you need to check that the iterator points to
1952 * a string value before using this function.
1954 * @see dbus_message_iter_get_arg_type
1955 * @param iter the message iter
1956 * @returns the string
1959 dbus_message_iter_get_string (DBusMessageIter *iter)
1961 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1964 dbus_message_iter_check (real);
1966 pos = dbus_message_iter_get_data_start (real, &type);
1968 _dbus_assert (type == DBUS_TYPE_STRING);
1970 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
1975 * Returns the name and data from a named type that an
1976 * iterator may point to. Note that you need to check that
1977 * the iterator points to a named type before using this
1980 * @see dbus_message_iter_get_arg_type
1981 * @param iter the message iter
1982 * @param name return location for the name
1983 * @param value return location for data
1984 * @param len return location for length of data
1985 * @returns TRUE if get succeed
1989 dbus_message_iter_get_named (DBusMessageIter *iter,
1991 unsigned char **value,
1994 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1998 dbus_message_iter_check (real);
2000 pos = dbus_message_iter_get_data_start (real, &type);
2002 _dbus_assert (type == DBUS_TYPE_NAMED);
2004 _name = _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2010 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2011 pos + 1, NULL, value, len))
2023 * Returns the byte value that an iterator may point to.
2024 * Note that you need to check that the iterator points to
2025 * a byte value before using this function.
2027 * @see dbus_message_iter_get_arg_type
2028 * @param iter the message iter
2029 * @returns the byte value
2032 dbus_message_iter_get_byte (DBusMessageIter *iter)
2034 unsigned char value;
2035 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2038 dbus_message_iter_check (real);
2040 pos = dbus_message_iter_get_data_start (real, &type);
2042 _dbus_assert (type == DBUS_TYPE_BYTE);
2044 value = _dbus_string_get_byte (&real->message->body, pos);
2051 * Returns the boolean value that an iterator may point to.
2052 * Note that you need to check that the iterator points to
2053 * a boolean value before using this function.
2055 * @see dbus_message_iter_get_arg_type
2056 * @param iter the message iter
2057 * @returns the boolean value
2060 dbus_message_iter_get_boolean (DBusMessageIter *iter)
2062 unsigned char value;
2063 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2066 dbus_message_iter_check (real);
2068 pos = dbus_message_iter_get_data_start (real, &type);
2070 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2072 value = _dbus_string_get_byte (&real->message->body, pos);
2078 * Returns the 32 bit signed integer value that an iterator may point to.
2079 * Note that you need to check that the iterator points to
2080 * an integer value before using this function.
2082 * @see dbus_message_iter_get_arg_type
2083 * @param iter the message iter
2084 * @returns the integer
2087 dbus_message_iter_get_int32 (DBusMessageIter *iter)
2089 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2092 dbus_message_iter_check (real);
2094 pos = dbus_message_iter_get_data_start (real, &type);
2096 _dbus_assert (type == DBUS_TYPE_INT32);
2098 return _dbus_demarshal_int32 (&real->message->body, real->message->byte_order,
2103 * Returns the 32 bit unsigned integer value that an iterator may point to.
2104 * Note that you need to check that the iterator points to
2105 * an unsigned integer value before using this function.
2107 * @see dbus_message_iter_get_arg_type
2108 * @param iter the message iter
2109 * @returns the integer
2112 dbus_message_iter_get_uint32 (DBusMessageIter *iter)
2114 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2117 dbus_message_iter_check (real);
2119 pos = dbus_message_iter_get_data_start (real, &type);
2121 _dbus_assert (type == DBUS_TYPE_UINT32);
2123 return _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2128 * Returns the double value that an iterator may point to.
2129 * Note that you need to check that the iterator points to
2130 * a string value before using this function.
2132 * @see dbus_message_iter_get_arg_type
2133 * @param iter the message iter
2134 * @returns the double
2137 dbus_message_iter_get_double (DBusMessageIter *iter)
2139 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2142 dbus_message_iter_check (real);
2144 pos = dbus_message_iter_get_data_start (real, &type);
2146 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2148 return _dbus_demarshal_double (&real->message->body, real->message->byte_order,
2153 * Initializes an iterator for the array that the iterator
2154 * may point to. Note that you need to check that the iterator
2155 * points to an array prior to using this function.
2157 * The array element type is returned in array_type, and the array
2158 * iterator can only be used to get that type of data.
2160 * @param iter the iterator
2161 * @param array_iter pointer to an iterator to initialize
2162 * @param array_type gets set to the type of the array elements
2163 * @returns #TRUE on success
2166 dbus_message_iter_init_array_iterator (DBusMessageIter *iter,
2167 DBusMessageIter *array_iter,
2170 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2171 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2172 int type, pos, len_pos, len, array_type_pos;
2175 dbus_message_iter_check (real);
2177 pos = dbus_message_iter_get_data_start (real, &type);
2179 _dbus_assert (type == DBUS_TYPE_ARRAY);
2181 _array_type = iter_get_array_type (real, &array_type_pos);
2183 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2184 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2187 array_real->parent_iter = real;
2188 array_real->message = real->message;
2189 array_real->changed_stamp = real->message->changed_stamp;
2191 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2192 array_real->pos = pos;
2193 array_real->end = pos + len;
2195 array_real->container_start = pos;
2196 array_real->container_length_pos = len_pos;
2197 array_real->wrote_dict_key = 0;
2198 array_real->array_type_pos = array_type_pos;
2199 array_real->array_type_done = TRUE;
2201 if (array_type != NULL)
2202 *array_type = _array_type;
2209 * Initializes an iterator for the dict that the iterator
2210 * may point to. Note that you need to check that the iterator
2211 * points to a dict prior to using this function.
2213 * @param iter the iterator
2214 * @param dict_iter pointer to an iterator to initialize
2215 * @returns #TRUE on success
2218 dbus_message_iter_init_dict_iterator (DBusMessageIter *iter,
2219 DBusMessageIter *dict_iter)
2221 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2222 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
2223 int type, pos, len_pos, len;
2225 dbus_message_iter_check (real);
2227 pos = dbus_message_iter_get_data_start (real, &type);
2229 _dbus_assert (type == DBUS_TYPE_DICT);
2231 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2232 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2235 dict_real->parent_iter = real;
2236 dict_real->message = real->message;
2237 dict_real->changed_stamp = real->message->changed_stamp;
2239 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
2240 dict_real->pos = pos;
2241 dict_real->end = pos + len;
2243 dict_real->container_start = pos;
2244 dict_real->container_length_pos = len_pos;
2245 dict_real->wrote_dict_key = 0;
2251 * Returns the byte array that the iterator may point to.
2252 * Note that you need to check that the iterator points
2253 * to a byte array prior to using this function.
2255 * @param iter the iterator
2256 * @param value return location for array values
2257 * @param len return location for length of byte array
2258 * @returns #TRUE on success
2261 dbus_message_iter_get_byte_array (DBusMessageIter *iter,
2262 unsigned char **value,
2265 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2268 dbus_message_iter_check (real);
2270 pos = dbus_message_iter_get_data_start (real, &type);
2272 _dbus_assert (type == DBUS_TYPE_ARRAY);
2274 type = iter_get_array_type (real, NULL);
2276 _dbus_assert (type == DBUS_TYPE_BYTE);
2278 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2279 pos, NULL, value, len))
2286 * Returns the boolean array that the iterator may point to. Note that
2287 * you need to check that the iterator points to an array of the
2288 * correct type prior to using this function.
2290 * @param iter the iterator
2291 * @param value return location for the array
2292 * @param len return location for the array length
2293 * @returns #TRUE on success
2296 dbus_message_iter_get_boolean_array (DBusMessageIter *iter,
2297 unsigned char **value,
2300 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2303 dbus_message_iter_check (real);
2305 pos = dbus_message_iter_get_data_start (real, &type);
2307 _dbus_assert (type == DBUS_TYPE_ARRAY);
2309 type = iter_get_array_type (real, NULL);
2311 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2313 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2314 pos, NULL, value, len))
2321 * Returns the 32 bit signed integer array that the iterator may point
2322 * to. Note that you need to check that the iterator points to an
2323 * array of the correct type prior to using this function.
2325 * @param iter the iterator
2326 * @param value return location for the array
2327 * @param len return location for the array length
2328 * @returns #TRUE on success
2331 dbus_message_iter_get_int32_array (DBusMessageIter *iter,
2332 dbus_int32_t **value,
2335 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2338 dbus_message_iter_check (real);
2340 pos = dbus_message_iter_get_data_start (real, &type);
2342 _dbus_assert (type == DBUS_TYPE_ARRAY);
2344 type = iter_get_array_type (real, NULL);
2346 _dbus_assert (type == DBUS_TYPE_INT32);
2348 if (!_dbus_demarshal_int32_array (&real->message->body, real->message->byte_order,
2349 pos, NULL, value, len))
2356 * Returns the 32 bit unsigned integer array that the iterator may point
2357 * to. Note that you need to check that the iterator points to an
2358 * array of the correct type prior to using this function.
2360 * @param iter the iterator
2361 * @param value return location for the array
2362 * @param len return location for the array length
2363 * @returns #TRUE on success
2366 dbus_message_iter_get_uint32_array (DBusMessageIter *iter,
2367 dbus_uint32_t **value,
2370 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2373 dbus_message_iter_check (real);
2375 pos = dbus_message_iter_get_data_start (real, &type);
2377 _dbus_assert (type == DBUS_TYPE_ARRAY);
2379 type = iter_get_array_type (real, NULL);
2380 _dbus_assert (type == DBUS_TYPE_UINT32);
2382 if (!_dbus_demarshal_uint32_array (&real->message->body, real->message->byte_order,
2383 pos, NULL, value, len))
2390 * Returns the double array that the iterator may point to. Note that
2391 * you need to check that the iterator points to an array of the
2392 * correct type prior to using this function.
2394 * @param iter the iterator
2395 * @param value return location for the array
2396 * @param len return location for the array length
2397 * @returns #TRUE on success
2400 dbus_message_iter_get_double_array (DBusMessageIter *iter,
2404 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2407 dbus_message_iter_check (real);
2409 pos = dbus_message_iter_get_data_start (real, &type);
2411 _dbus_assert (type == DBUS_TYPE_ARRAY);
2413 type = iter_get_array_type (real, NULL);
2414 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2416 if (!_dbus_demarshal_double_array (&real->message->body, real->message->byte_order,
2417 pos, NULL, value, len))
2424 * Returns the string array that the iterator may point to.
2425 * Note that you need to check that the iterator points
2426 * to a byte array prior to using this function.
2428 * The returned value is a #NULL-terminated array of strings.
2429 * Each string is a separate malloc block, and the array
2430 * itself is a malloc block. You can free this type of
2431 * string array with dbus_free_string_array().
2433 * @param iter the iterator
2434 * @param value return location for string values
2435 * @param len return location for length of byte array
2436 * @returns #TRUE on success
2439 dbus_message_iter_get_string_array (DBusMessageIter *iter,
2443 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2446 dbus_message_iter_check (real);
2448 pos = dbus_message_iter_get_data_start (real, &type);
2450 _dbus_assert (type == DBUS_TYPE_ARRAY);
2452 type = iter_get_array_type (real, NULL);
2453 _dbus_assert (type == DBUS_TYPE_STRING);
2455 if (!_dbus_demarshal_string_array (&real->message->body, real->message->byte_order,
2456 pos, NULL, value, len))
2463 * Returns the key name fot the dict entry that an iterator
2464 * may point to. Note that you need to check that the iterator
2465 * points to a dict entry before using this function.
2467 * @see dbus_message_iter_init_dict_iterator
2468 * @param iter the message iter
2469 * @returns the key name
2472 dbus_message_iter_get_dict_key (DBusMessageIter *iter)
2474 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2476 dbus_message_iter_check (real);
2478 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
2480 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2485 * Initializes a DBusMessageIter pointing to the end of the
2486 * message. This iterator can be used to append data to the
2489 * @param message the message
2490 * @param iter pointer to an iterator to initialize
2493 dbus_message_append_iter_init (DBusMessage *message,
2494 DBusMessageIter *iter)
2496 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2498 real->message = message;
2499 real->parent_iter = NULL;
2500 real->changed_stamp = message->changed_stamp;
2502 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
2503 real->end = _dbus_string_get_length (&real->message->body);
2504 real->pos = real->end;
2506 real->container_length_pos = 0;
2507 real->wrote_dict_key = 0;
2511 dbus_message_iter_append_check (DBusMessageRealIter *iter)
2513 _dbus_assert (!iter->message->locked);
2515 if (iter->changed_stamp != iter->message->changed_stamp)
2516 _dbus_warn ("dbus iterator check failed: invalid iterator");
2518 if (iter->pos != iter->end)
2519 _dbus_warn ("dbus iterator check failed: can only append at end of message");
2521 if (iter->pos != _dbus_string_get_length (&iter->message->body))
2522 _dbus_warn ("dbus iterator check failed: append pos not at end of message string");
2526 dbus_message_iter_append_type (DBusMessageRealIter *iter,
2532 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2533 if (!_dbus_string_append_byte (&iter->message->body, type))
2537 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2538 data = _dbus_string_get_const_data_len (&iter->message->body,
2539 iter->array_type_pos, 1);
2542 _dbus_warn ("Appended element of wrong type for array\n");
2547 case DBUS_MESSAGE_ITER_TYPE_DICT:
2548 if (!iter->wrote_dict_key)
2550 _dbus_warn ("Appending dict data before key name\n");
2554 if (!_dbus_string_append_byte (&iter->message->body, type))
2560 _dbus_assert_not_reached ("Invalid iter type");
2568 dbus_message_iter_update_after_change (DBusMessageRealIter *iter)
2570 iter->changed_stamp = iter->message->changed_stamp;
2572 /* Set new end of iter */
2573 iter->end = _dbus_string_get_length (&iter->message->body);
2574 iter->pos = iter->end;
2576 /* Set container length */
2577 if (iter->type == DBUS_MESSAGE_ITER_TYPE_DICT ||
2578 (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY && iter->array_type_done))
2579 _dbus_marshal_set_uint32 (&iter->message->body,
2580 iter->message->byte_order,
2581 iter->container_length_pos,
2582 iter->end - iter->container_start);
2584 if (iter->parent_iter)
2585 dbus_message_iter_update_after_change (iter->parent_iter);
2589 dbus_message_iter_append_done (DBusMessageRealIter *iter)
2591 iter->message->changed_stamp++;
2592 dbus_message_iter_update_after_change (iter);
2593 iter->wrote_dict_key = FALSE;
2597 * Appends a nil value to the message
2599 * @param iter an iterator pointing to the end of the message
2600 * @returns #TRUE on success
2603 dbus_message_iter_append_nil (DBusMessageIter *iter)
2605 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2607 dbus_message_iter_append_check (real);
2609 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NIL))
2612 dbus_message_iter_append_done (real);
2618 * Appends a boolean value to the message
2620 * @param iter an iterator pointing to the end of the message
2621 * @param value the boolean value
2622 * @returns #TRUE on success
2625 dbus_message_iter_append_boolean (DBusMessageIter *iter,
2628 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2630 dbus_message_iter_append_check (real);
2632 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BOOLEAN))
2635 if (!_dbus_string_append_byte (&real->message->body, (value != FALSE)))
2637 _dbus_string_set_length (&real->message->body, real->pos);
2641 dbus_message_iter_append_done (real);
2647 * Appends a byte to the message
2649 * @param iter an iterator pointing to the end of the message
2650 * @param value the byte value
2651 * @returns #TRUE on success
2654 dbus_message_iter_append_byte (DBusMessageIter *iter,
2655 unsigned char value)
2657 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2659 dbus_message_iter_append_check (real);
2661 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BYTE))
2664 if (!_dbus_string_append_byte (&real->message->body, value))
2666 _dbus_string_set_length (&real->message->body, real->pos);
2670 dbus_message_iter_append_done (real);
2677 * Appends a 32 bit signed integer to the message.
2679 * @param iter an iterator pointing to the end of the message
2680 * @param value the integer value
2681 * @returns #TRUE on success
2684 dbus_message_iter_append_int32 (DBusMessageIter *iter,
2687 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2689 dbus_message_iter_append_check (real);
2691 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT32))
2694 if (!_dbus_marshal_int32 (&real->message->body, real->message->byte_order, value))
2696 _dbus_string_set_length (&real->message->body, real->pos);
2700 dbus_message_iter_append_done (real);
2706 * Appends a 32 bit unsigned integer to the message.
2708 * @param iter an iterator pointing to the end of the message
2709 * @param value the integer value
2710 * @returns #TRUE on success
2713 dbus_message_iter_append_uint32 (DBusMessageIter *iter,
2714 dbus_uint32_t value)
2716 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2718 dbus_message_iter_append_check (real);
2720 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT32))
2723 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, value))
2725 _dbus_string_set_length (&real->message->body, real->pos);
2729 dbus_message_iter_append_done (real);
2735 * Appends a double value to the message.
2737 * @param iter an iterator pointing to the end of the message
2738 * @param value the double value
2739 * @returns #TRUE on success
2742 dbus_message_iter_append_double (DBusMessageIter *iter,
2745 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2747 dbus_message_iter_append_check (real);
2749 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DOUBLE))
2752 if (!_dbus_marshal_double (&real->message->body, real->message->byte_order, value))
2754 _dbus_string_set_length (&real->message->body, real->pos);
2758 dbus_message_iter_append_done (real);
2764 * Appends a UTF-8 string to the message.
2766 * @param iter an iterator pointing to the end of the message
2767 * @param value the string
2768 * @returns #TRUE on success
2771 dbus_message_iter_append_string (DBusMessageIter *iter,
2774 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2776 dbus_message_iter_append_check (real);
2778 if (!dbus_message_iter_append_type (real, DBUS_TYPE_STRING))
2781 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
2783 _dbus_string_set_length (&real->message->body, real->pos);
2787 dbus_message_iter_append_done (real);
2793 * Appends a named type data chunk to the message. A named
2794 * type is simply an arbitrary UTF-8 string used as a type
2795 * tag, plus an array of arbitrary bytes to be interpreted
2796 * according to the type tag.
2798 * @param iter an iterator pointing to the end of the message
2799 * @param name the name of the type
2800 * @param data the binary data used to store the value
2801 * @param len the length of the binary data in bytes
2802 * @returns #TRUE on success
2805 dbus_message_iter_append_named (DBusMessageIter *iter,
2807 const unsigned char *data,
2810 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2812 dbus_message_iter_append_check (real);
2814 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NAMED))
2817 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, name))
2819 _dbus_string_set_length (&real->message->body, real->pos);
2823 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, data, len))
2825 _dbus_string_set_length (&real->message->body, real->pos);
2829 dbus_message_iter_append_done (real);
2836 * Appends a dict key name to the message. The iterator used
2837 * must point to a dict.
2839 * @param iter an iterator pointing to the end of the message
2840 * @param value the string
2841 * @returns #TRUE on success
2844 dbus_message_iter_append_dict_key (DBusMessageIter *iter,
2847 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2849 dbus_message_iter_append_check (real);
2850 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
2852 if (real->wrote_dict_key)
2854 _dbus_warn ("Appendinging multiple dict key names\n");
2858 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
2863 dbus_message_iter_append_done (real);
2864 real->wrote_dict_key = TRUE;
2870 array_iter_type_mark_done (DBusMessageRealIter *iter)
2874 if (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY)
2875 array_iter_type_mark_done (iter->parent_iter);
2879 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&iter->message->body),
2880 sizeof (dbus_uint32_t));
2882 /* Empty length for now, backfill later */
2883 if (!_dbus_marshal_uint32 (&iter->message->body, iter->message->byte_order, 0))
2885 _dbus_string_set_length (&iter->message->body, iter->pos);
2889 iter->container_start = _dbus_string_get_length (&iter->message->body);
2890 iter->container_length_pos = len_pos;
2891 iter->array_type_done = TRUE;
2897 append_array_type (DBusMessageRealIter *real,
2899 dbus_bool_t *array_type_done,
2900 int *array_type_pos)
2902 int existing_element_type;
2904 if (!dbus_message_iter_append_type (real, DBUS_TYPE_ARRAY))
2907 if (real->type == DBUS_MESSAGE_ITER_TYPE_ARRAY &&
2908 real->array_type_done)
2910 existing_element_type = iter_get_array_type (real, array_type_pos);
2911 if (existing_element_type != element_type)
2913 _dbus_warn ("Appending array of %d, when expecting array of %d\n",
2914 element_type, existing_element_type);
2915 _dbus_string_set_length (&real->message->body, real->pos);
2918 if (array_type_done != NULL)
2919 *array_type_done = TRUE;
2923 if (array_type_pos != NULL)
2924 *array_type_pos = _dbus_string_get_length (&real->message->body);
2926 /* Append element type */
2927 if (!_dbus_string_append_byte (&real->message->body, element_type))
2929 _dbus_string_set_length (&real->message->body, real->pos);
2933 if (array_type_done != NULL)
2934 *array_type_done = element_type != DBUS_TYPE_ARRAY;
2936 if (element_type != DBUS_TYPE_ARRAY &&
2937 !array_iter_type_mark_done (real))
2945 * Appends an array to the message and initializes an iterator that
2946 * can be used to append to the array.
2948 * @param iter an iterator pointing to the end of the message
2949 * @param array_iter pointer to an iter that will be initialized
2950 * @param element_type the type of the array elements
2951 * @returns #TRUE on success
2954 dbus_message_iter_append_array (DBusMessageIter *iter,
2955 DBusMessageIter *array_iter,
2958 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2959 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2962 dbus_bool_t array_type_done;
2964 if (element_type == DBUS_TYPE_NIL)
2966 _dbus_warn ("Can't create NIL arrays\n");
2970 dbus_message_iter_append_check (real);
2972 if (!append_array_type (real, element_type, &array_type_done, &array_type_pos))
2975 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
2977 if (array_type_done)
2979 /* Empty length for now, backfill later */
2980 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
2982 _dbus_string_set_length (&real->message->body, real->pos);
2987 array_real->parent_iter = real;
2988 array_real->message = real->message;
2989 array_real->changed_stamp = real->message->changed_stamp;
2991 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2992 array_real->pos = _dbus_string_get_length (&real->message->body);
2993 array_real->end = array_real->end;
2995 array_real->container_start = array_real->pos;
2996 array_real->container_length_pos = len_pos;
2997 array_real->wrote_dict_key = 0;
2998 array_real->array_type_done = array_type_done;
2999 array_real->array_type_pos = array_type_pos;
3001 dbus_message_iter_append_done (array_real);
3007 * Appends a dict to the message and initializes an iterator that
3008 * can be used to append to the dict.
3010 * @param iter an iterator pointing to the end of the message
3011 * @param dict_iter pointer to an iter that will be initialized
3012 * @returns #TRUE on success
3015 dbus_message_iter_append_dict (DBusMessageIter *iter,
3016 DBusMessageIter *dict_iter)
3018 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3019 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
3022 dbus_message_iter_append_check (real);
3024 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DICT))
3027 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
3029 /* Empty length for now, backfill later */
3030 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
3032 _dbus_string_set_length (&real->message->body, real->pos);
3036 dict_real->parent_iter = real;
3037 dict_real->message = real->message;
3038 dict_real->changed_stamp = real->message->changed_stamp;
3040 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
3041 dict_real->pos = _dbus_string_get_length (&real->message->body);
3042 dict_real->end = dict_real->end;
3044 dict_real->container_start = dict_real->pos;
3045 dict_real->container_length_pos = len_pos;
3046 dict_real->wrote_dict_key = 0;
3048 dbus_message_iter_append_done (dict_real);
3055 * Appends a boolean array to the message.
3057 * @param iter an iterator pointing to the end of the message
3058 * @param value the array
3059 * @param len the length of the array
3060 * @returns #TRUE on success
3063 dbus_message_iter_append_boolean_array (DBusMessageIter *iter,
3064 unsigned const char *value,
3067 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3069 dbus_message_iter_append_check (real);
3071 if (!append_array_type (real, DBUS_TYPE_BOOLEAN, NULL, NULL))
3074 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
3076 _dbus_string_set_length (&real->message->body, real->pos);
3080 dbus_message_iter_append_done (real);
3086 * Appends a 32 bit signed integer array to the message.
3088 * @param iter an iterator pointing to the end of the message
3089 * @param value the array
3090 * @param len the length of the array
3091 * @returns #TRUE on success
3094 dbus_message_iter_append_int32_array (DBusMessageIter *iter,
3095 const dbus_int32_t *value,
3098 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3100 dbus_message_iter_append_check (real);
3102 if (!append_array_type (real, DBUS_TYPE_INT32, NULL, NULL))
3105 if (!_dbus_marshal_int32_array (&real->message->body, real->message->byte_order, value, len))
3107 _dbus_string_set_length (&real->message->body, real->pos);
3111 dbus_message_iter_append_done (real);
3117 * Appends a 32 bit unsigned integer array to the message.
3119 * @param iter an iterator pointing to the end of the message
3120 * @param value the array
3121 * @param len the length of the array
3122 * @returns #TRUE on success
3125 dbus_message_iter_append_uint32_array (DBusMessageIter *iter,
3126 const dbus_uint32_t *value,
3129 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3131 dbus_message_iter_append_check (real);
3133 if (!append_array_type (real, DBUS_TYPE_UINT32, NULL, NULL))
3136 if (!_dbus_marshal_uint32_array (&real->message->body, real->message->byte_order, value, len))
3138 _dbus_string_set_length (&real->message->body, real->pos);
3142 dbus_message_iter_append_done (real);
3148 * Appends a double array to the message.
3150 * @param iter an iterator pointing to the end of the message
3151 * @param value the array
3152 * @param len the length of the array
3153 * @returns #TRUE on success
3156 dbus_message_iter_append_double_array (DBusMessageIter *iter,
3157 const double *value,
3160 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3162 dbus_message_iter_append_check (real);
3164 if (!append_array_type (real, DBUS_TYPE_DOUBLE, NULL, NULL))
3167 if (!_dbus_marshal_double_array (&real->message->body, real->message->byte_order, value, len))
3169 _dbus_string_set_length (&real->message->body, real->pos);
3173 dbus_message_iter_append_done (real);
3179 * Appends a byte array to the message.
3181 * @param iter an iterator pointing to the end of the message
3182 * @param value the array
3183 * @param len the length of the array
3184 * @returns #TRUE on success
3187 dbus_message_iter_append_byte_array (DBusMessageIter *iter,
3188 unsigned const char *value,
3191 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3193 dbus_message_iter_append_check (real);
3195 if (!append_array_type (real, DBUS_TYPE_BYTE, NULL, NULL))
3198 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
3200 _dbus_string_set_length (&real->message->body, real->pos);
3204 dbus_message_iter_append_done (real);
3210 * Appends a string array to the message.
3212 * @param iter an iterator pointing to the end of the message
3213 * @param value the array
3214 * @param len the length of the array
3215 * @returns #TRUE on success
3218 dbus_message_iter_append_string_array (DBusMessageIter *iter,
3222 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3224 dbus_message_iter_append_check (real);
3226 if (!append_array_type (real, DBUS_TYPE_STRING, NULL, NULL))
3229 if (!_dbus_marshal_string_array (&real->message->body, real->message->byte_order, value, len))
3231 _dbus_string_set_length (&real->message->body, real->pos);
3235 dbus_message_iter_append_done (real);
3241 * Sets the message sender.
3243 * @param message the message
3244 * @param sender the sender
3245 * @returns #FALSE if not enough memory
3248 dbus_message_set_sender (DBusMessage *message,
3251 _dbus_assert (!message->locked);
3255 delete_string_field (message, FIELD_SENDER);
3260 return set_string_field (message,
3267 * Sets a flag indicating that the message is an error reply
3268 * message, i.e. an "exception" rather than a normal response.
3270 * @param message the message
3271 * @param is_error_reply #TRUE if this is an error message.
3274 dbus_message_set_is_error (DBusMessage *message,
3275 dbus_bool_t is_error_reply)
3279 _dbus_assert (!message->locked);
3281 header = _dbus_string_get_data_len (&message->header, 1, 1);
3284 *header |= DBUS_HEADER_FLAG_ERROR;
3286 *header &= ~DBUS_HEADER_FLAG_ERROR;
3290 * Returns #TRUE if the message is an error
3291 * reply to some previous message we sent.
3293 * @param message the message
3294 * @returns #TRUE if the message is an error
3297 dbus_message_get_is_error (DBusMessage *message)
3301 header = _dbus_string_get_const_data_len (&message->header, 1, 1);
3303 return (*header & DBUS_HEADER_FLAG_ERROR) != 0;
3307 * Gets the service which originated this message,
3308 * or #NULL if unknown or inapplicable.
3310 * @param message the message
3311 * @returns the service name or #NULL
3314 dbus_message_get_sender (DBusMessage *message)
3316 return get_string_field (message, FIELD_SENDER, NULL);
3320 * Checks whether the message has the given name.
3321 * If the message has no name or has a different
3322 * name, returns #FALSE.
3324 * @param message the message
3325 * @param name the name to check (must not be #NULL)
3327 * @returns #TRUE if the message has the given name
3330 dbus_message_name_is (DBusMessage *message,
3335 _dbus_assert (name != NULL);
3337 n = dbus_message_get_name (message);
3339 if (n && strcmp (n, name) == 0)
3346 * Checks whether the message was sent to the given service. If the
3347 * message has no service specified or has a different name, returns
3350 * @param message the message
3351 * @param service the service to check (must not be #NULL)
3353 * @returns #TRUE if the message has the given destination service
3356 dbus_message_service_is (DBusMessage *message,
3357 const char *service)
3361 _dbus_assert (service != NULL);
3363 s = dbus_message_get_service (message);
3365 if (s && strcmp (s, service) == 0)
3372 * Checks whether the message has the given service as its sender. If
3373 * the message has no sender specified or has a different sender,
3374 * returns #FALSE. Note that if a peer application owns multiple
3375 * services, its messages will have only one of those services as the
3376 * sender (usually the base service). So you can't use this
3377 * function to prove the sender didn't own service Foo, you can
3378 * only use it to prove that it did.
3380 * @param message the message
3381 * @param service the service to check (must not be #NULL)
3383 * @returns #TRUE if the message has the given origin service
3386 dbus_message_sender_is (DBusMessage *message,
3387 const char *service)
3391 _dbus_assert (service != NULL);
3393 s = dbus_message_get_sender (message);
3395 if (s && strcmp (s, service) == 0)
3402 * Sets a #DBusError based on the contents of the given
3403 * message. The error is only set if the message
3404 * is an error message, as in dbus_message_get_is_error().
3405 * The name of the error is set to the name of the message,
3406 * and the error message is set to the first argument
3407 * if the argument exists and is a string.
3409 * The return value indicates whether the error was set (the error is
3410 * set if and only if the message is an error message).
3411 * So you can check for an error reply and convert it to DBusError
3414 * @param error the error to set
3415 * @param message the message to set it from
3416 * @returns #TRUE if dbus_message_get_is_error() returns #TRUE for the message
3419 dbus_set_error_from_message (DBusError *error,
3420 DBusMessage *message)
3424 if (!dbus_message_get_is_error (message))
3428 dbus_message_get_args (message, NULL,
3429 DBUS_TYPE_STRING, &str,
3432 dbus_set_error (error, dbus_message_get_name (message),
3433 str ? "%s" : NULL, str);
3443 * @addtogroup DBusMessageInternals
3448 * @typedef DBusMessageLoader
3450 * The DBusMessageLoader object encapsulates the process of converting
3451 * a byte stream into a series of DBusMessage. It buffers the incoming
3452 * bytes as efficiently as possible, and generates a queue of
3453 * messages. DBusMessageLoader is typically used as part of a
3454 * DBusTransport implementation. The DBusTransport then hands off
3455 * the loaded messages to a DBusConnection, making the messages
3456 * visible to the application.
3458 * @todo write tests for break-loader that a) randomly delete header
3459 * fields and b) set string fields to zero-length and other funky
3464 /* we definitely use signed ints for sizes, so don't exceed
3465 * _DBUS_INT_MAX; and add 16 for paranoia, since a message
3466 * over 128M is pretty nuts anyhow.
3470 * The maximum sane message size.
3472 #define MAX_SANE_MESSAGE_SIZE (_DBUS_INT_MAX/16)
3475 * Implementation details of DBusMessageLoader.
3476 * All members are private.
3478 struct DBusMessageLoader
3480 int refcount; /**< Reference count. */
3482 DBusString data; /**< Buffered data */
3484 DBusList *messages; /**< Complete messages. */
3486 long max_message_size; /**< Maximum size of a message */
3488 unsigned int buffer_outstanding : 1; /**< Someone is using the buffer to read */
3490 unsigned int corrupted : 1; /**< We got broken data, and are no longer working */
3494 * The initial buffer size of the message loader.
3496 * @todo this should be based on min header size plus some average
3497 * body size, or something. Or rather, the min header size only, if we
3498 * want to try to read only the header, store that in a DBusMessage,
3499 * then read only the body and store that, etc., depends on
3500 * how we optimize _dbus_message_loader_get_buffer() and what
3501 * the exact message format is.
3503 #define INITIAL_LOADER_DATA_LEN 32
3506 * Creates a new message loader. Returns #NULL if memory can't
3509 * @returns new loader, or #NULL.
3512 _dbus_message_loader_new (void)
3514 DBusMessageLoader *loader;
3516 loader = dbus_new0 (DBusMessageLoader, 1);
3520 loader->refcount = 1;
3522 /* Try to cap message size at something that won't *totally* hose
3523 * the system if we have a couple of them.
3525 loader->max_message_size = _DBUS_ONE_MEGABYTE * 32;
3527 if (!_dbus_string_init (&loader->data))
3533 /* preallocate the buffer for speed, ignore failure */
3534 _dbus_string_set_length (&loader->data, INITIAL_LOADER_DATA_LEN);
3535 _dbus_string_set_length (&loader->data, 0);
3541 * Increments the reference count of the loader.
3543 * @param loader the loader.
3546 _dbus_message_loader_ref (DBusMessageLoader *loader)
3548 loader->refcount += 1;
3552 * Decrements the reference count of the loader and finalizes the
3553 * loader when the count reaches zero.
3555 * @param loader the loader.
3558 _dbus_message_loader_unref (DBusMessageLoader *loader)
3560 loader->refcount -= 1;
3561 if (loader->refcount == 0)
3563 _dbus_list_foreach (&loader->messages,
3564 (DBusForeachFunction) dbus_message_unref,
3566 _dbus_list_clear (&loader->messages);
3567 _dbus_string_free (&loader->data);
3573 * Gets the buffer to use for reading data from the network. Network
3574 * data is read directly into an allocated buffer, which is then used
3575 * in the DBusMessage, to avoid as many extra memcpy's as possible.
3576 * The buffer must always be returned immediately using
3577 * _dbus_message_loader_return_buffer(), even if no bytes are
3578 * successfully read.
3580 * @todo this function can be a lot more clever. For example
3581 * it can probably always return a buffer size to read exactly
3582 * the body of the next message, thus avoiding any memory wastage
3585 * @todo we need to enforce a max length on strings in header fields.
3587 * @param loader the message loader.
3588 * @param buffer the buffer
3591 _dbus_message_loader_get_buffer (DBusMessageLoader *loader,
3592 DBusString **buffer)
3594 _dbus_assert (!loader->buffer_outstanding);
3596 *buffer = &loader->data;
3598 loader->buffer_outstanding = TRUE;
3602 * The smallest header size that can occur.
3603 * (It won't be valid)
3605 #define DBUS_MINIMUM_HEADER_SIZE 16
3607 /** Pack four characters as in "abcd" into a uint32 */
3608 #define FOUR_CHARS_TO_UINT32(a, b, c, d) \
3609 ((((dbus_uint32_t)a) << 24) | \
3610 (((dbus_uint32_t)b) << 16) | \
3611 (((dbus_uint32_t)c) << 8) | \
3614 /** DBUS_HEADER_FIELD_NAME packed into a dbus_uint32_t */
3615 #define DBUS_HEADER_FIELD_NAME_AS_UINT32 \
3616 FOUR_CHARS_TO_UINT32 ('n', 'a', 'm', 'e')
3618 /** DBUS_HEADER_FIELD_SERVICE packed into a dbus_uint32_t */
3619 #define DBUS_HEADER_FIELD_SERVICE_AS_UINT32 \
3620 FOUR_CHARS_TO_UINT32 ('s', 'r', 'v', 'c')
3622 /** DBUS_HEADER_FIELD_REPLY packed into a dbus_uint32_t */
3623 #define DBUS_HEADER_FIELD_REPLY_AS_UINT32 \
3624 FOUR_CHARS_TO_UINT32 ('r', 'p', 'l', 'y')
3626 /** DBUS_HEADER_FIELD_SENDER Packed into a dbus_uint32_t */
3627 #define DBUS_HEADER_FIELD_SENDER_AS_UINT32 \
3628 FOUR_CHARS_TO_UINT32 ('s', 'n', 'd', 'r')
3630 /* FIXME impose max length on name, srvc, sndr */
3632 decode_header_data (const DBusString *data,
3635 HeaderField fields[FIELD_LAST],
3636 int *message_padding)
3643 if (header_len < 16)
3647 while (i < FIELD_LAST)
3649 fields[i].offset = -1;
3653 fields[FIELD_HEADER_LENGTH].offset = 4;
3654 fields[FIELD_BODY_LENGTH].offset = 8;
3655 fields[FIELD_CLIENT_SERIAL].offset = 12;
3657 /* Now handle the named fields. A real named field is at least 4
3658 * bytes for the name, plus a type code (1 byte) plus padding. So
3659 * if we have less than 8 bytes left, it must be alignment padding,
3660 * not a field. While >= 8 bytes can't be entirely alignment
3664 while ((pos + 7) < header_len)
3666 pos = _DBUS_ALIGN_VALUE (pos, 4);
3668 if ((pos + 4) > header_len)
3671 field =_dbus_string_get_const_data_len (data, pos, 4);
3674 _dbus_assert (_DBUS_ALIGN_ADDRESS (field, 4) == field);
3676 switch (DBUS_UINT32_FROM_BE (*(int*)field))
3678 case DBUS_HEADER_FIELD_SERVICE_AS_UINT32:
3679 if (fields[FIELD_SERVICE].offset >= 0)
3681 _dbus_verbose ("%s field provided twice\n",
3682 DBUS_HEADER_FIELD_SERVICE);
3686 fields[FIELD_SERVICE].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3688 _dbus_verbose ("Found service name at offset %d\n",
3689 fields[FIELD_SERVICE].offset);
3693 case DBUS_HEADER_FIELD_NAME_AS_UINT32:
3694 if (fields[FIELD_NAME].offset >= 0)
3696 _dbus_verbose ("%s field provided twice\n",
3697 DBUS_HEADER_FIELD_NAME);
3701 fields[FIELD_NAME].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3704 _dbus_verbose ("Found message name at offset %d\n",
3705 fields[FIELD_NAME].offset);
3708 case DBUS_HEADER_FIELD_SENDER_AS_UINT32:
3709 if (fields[FIELD_SENDER].offset >= 0)
3711 _dbus_verbose ("%s field provided twice\n",
3712 DBUS_HEADER_FIELD_SENDER);
3716 fields[FIELD_SENDER].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3718 _dbus_verbose ("Found sender name at offset %d\n",
3719 fields[FIELD_NAME].offset);
3722 case DBUS_HEADER_FIELD_REPLY_AS_UINT32:
3723 if (fields[FIELD_REPLY_SERIAL].offset >= 0)
3725 _dbus_verbose ("%s field provided twice\n",
3726 DBUS_HEADER_FIELD_REPLY);
3730 fields[FIELD_REPLY_SERIAL].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3732 _dbus_verbose ("Found reply serial at offset %d\n",
3733 fields[FIELD_REPLY_SERIAL].offset);
3737 _dbus_verbose ("Ignoring an unknown header field: %c%c%c%c at offset %d\n",
3738 field[0], field[1], field[2], field[3], pos);
3741 if (!_dbus_marshal_validate_type (data, pos, &type, &pos))
3743 _dbus_verbose ("Failed to validate type of named header field\n");
3747 if (!_dbus_marshal_validate_arg (data, byte_order, 0, type, -1, pos, &new_pos))
3749 _dbus_verbose ("Failed to validate argument to named header field\n");
3753 if (new_pos > header_len)
3755 _dbus_verbose ("Named header field tries to extend beyond header length\n");
3762 if (pos < header_len)
3764 /* Alignment padding, verify that it's nul */
3765 _dbus_assert ((header_len - pos) < 8);
3767 if (!_dbus_string_validate_nul (data,
3768 pos, (header_len - pos)))
3770 _dbus_verbose ("header alignment padding is not nul\n");
3775 if (fields[FIELD_NAME].offset < 0)
3777 _dbus_verbose ("No %s field provided\n",
3778 DBUS_HEADER_FIELD_NAME);
3782 if (message_padding)
3783 *message_padding = header_len - pos;
3789 * Returns a buffer obtained from _dbus_message_loader_get_buffer(),
3790 * indicating to the loader how many bytes of the buffer were filled
3791 * in. This function must always be called, even if no bytes were
3792 * successfully read.
3794 * @param loader the loader.
3795 * @param buffer the buffer.
3796 * @param bytes_read number of bytes that were read into the buffer.
3799 _dbus_message_loader_return_buffer (DBusMessageLoader *loader,
3803 _dbus_assert (loader->buffer_outstanding);
3804 _dbus_assert (buffer == &loader->data);
3806 loader->buffer_outstanding = FALSE;
3810 * Converts buffered data into messages.
3812 * @param loader the loader.
3813 * @returns #TRUE if we had enough memory to finish.
3816 _dbus_message_loader_queue_messages (DBusMessageLoader *loader)
3818 if (loader->corrupted)
3821 while (_dbus_string_get_length (&loader->data) >= 16)
3823 DBusMessage *message;
3824 const char *header_data;
3825 int byte_order, header_len, body_len, header_padding;
3826 dbus_uint32_t header_len_unsigned, body_len_unsigned;
3828 header_data = _dbus_string_get_const_data_len (&loader->data, 0, 16);
3830 _dbus_assert (_DBUS_ALIGN_ADDRESS (header_data, 4) == header_data);
3832 if (header_data[2] != DBUS_MAJOR_PROTOCOL_VERSION)
3834 _dbus_verbose ("Message has protocol version %d ours is %d\n",
3835 (int) header_data[2], DBUS_MAJOR_PROTOCOL_VERSION);
3836 loader->corrupted = TRUE;
3840 byte_order = header_data[0];
3842 if (byte_order != DBUS_LITTLE_ENDIAN &&
3843 byte_order != DBUS_BIG_ENDIAN)
3845 _dbus_verbose ("Message with bad byte order '%c' received\n",
3847 loader->corrupted = TRUE;
3851 header_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 4);
3852 body_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 8);
3854 if (header_len_unsigned < 16)
3856 _dbus_verbose ("Message had broken too-small header length %u\n",
3857 header_len_unsigned);
3858 loader->corrupted = TRUE;
3862 if (header_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE ||
3863 body_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE)
3865 _dbus_verbose ("Header or body length too large (%u %u)\n",
3866 header_len_unsigned,
3868 loader->corrupted = TRUE;
3872 /* Now that we know the values are in signed range, get
3873 * rid of stupid unsigned, just causes bugs
3875 header_len = header_len_unsigned;
3876 body_len = body_len_unsigned;
3878 if (_DBUS_ALIGN_VALUE (header_len, 8) != header_len_unsigned)
3881 _dbus_verbose ("header length %d is not aligned to 8 bytes\n",
3883 loader->corrupted = TRUE;
3887 if (header_len + body_len > loader->max_message_size)
3889 _dbus_verbose ("Message claimed length header = %d body = %d exceeds max message length %ld\n",
3890 header_len, body_len, loader->max_message_size);
3891 loader->corrupted = TRUE;
3895 if (_dbus_string_get_length (&loader->data) >= (header_len + body_len))
3897 HeaderField fields[FIELD_LAST];
3902 _dbus_verbose_bytes_of_string (&loader->data, 0, header_len + body_len);
3904 if (!decode_header_data (&loader->data, header_len, byte_order,
3905 fields, &header_padding))
3907 _dbus_verbose ("Header was invalid\n");
3908 loader->corrupted = TRUE;
3912 next_arg = header_len;
3913 while (next_arg < (header_len + body_len))
3916 int prev = next_arg;
3918 if (!_dbus_marshal_validate_type (&loader->data, next_arg,
3921 _dbus_verbose ("invalid typecode at offset %d\n", prev);
3922 loader->corrupted = TRUE;
3926 if (!_dbus_marshal_validate_arg (&loader->data,
3933 _dbus_verbose ("invalid type data at %d, next_arg\n", next_arg);
3934 loader->corrupted = TRUE;
3938 _dbus_assert (next_arg > prev);
3941 if (next_arg > (header_len + body_len))
3943 _dbus_verbose ("end of last arg at %d but message has len %d+%d=%d\n",
3944 next_arg, header_len, body_len,
3945 header_len + body_len);
3946 loader->corrupted = TRUE;
3950 message = dbus_message_new_empty_header ();
3951 if (message == NULL)
3953 _dbus_verbose ("Failed to allocate empty message\n");
3957 message->byte_order = byte_order;
3958 message->header_padding = header_padding;
3960 /* Copy in the offsets we found */
3962 while (i < FIELD_LAST)
3964 message->header_fields[i] = fields[i];
3968 if (!_dbus_list_append (&loader->messages, message))
3970 _dbus_verbose ("Failed to append new message to loader queue\n");
3971 dbus_message_unref (message);
3975 _dbus_assert (_dbus_string_get_length (&message->header) == 0);
3976 _dbus_assert (_dbus_string_get_length (&message->body) == 0);
3978 _dbus_assert (_dbus_string_get_length (&loader->data) >=
3979 (header_len + body_len));
3981 if (!_dbus_string_move_len (&loader->data, 0, header_len, &message->header, 0))
3983 _dbus_verbose ("Failed to move header into new message\n");
3984 _dbus_list_remove_last (&loader->messages, message);
3985 dbus_message_unref (message);
3989 if (!_dbus_string_move_len (&loader->data, 0, body_len, &message->body, 0))
3993 _dbus_verbose ("Failed to move body into new message\n");
3995 /* put the header back, we'll try again later */
3996 result = _dbus_string_copy_len (&message->header, 0, header_len,
3998 _dbus_assert (result); /* because DBusString never reallocs smaller */
4000 _dbus_list_remove_last (&loader->messages, message);
4001 dbus_message_unref (message);
4005 _dbus_assert (_dbus_string_get_length (&message->header) == header_len);
4006 _dbus_assert (_dbus_string_get_length (&message->body) == body_len);
4008 /* Fill in caches */
4009 /* FIXME there's no type check if the field has the wrong type */
4010 message->reply_serial = get_uint_field (message,
4011 FIELD_REPLY_SERIAL);
4012 message->client_serial = get_uint_field (message,
4013 FIELD_CLIENT_SERIAL);
4015 _dbus_verbose ("Loaded message %p\n", message);
4025 * Peeks at first loaded message, returns #NULL if no messages have
4028 * @param loader the loader.
4029 * @returns the next message, or #NULL if none.
4032 _dbus_message_loader_peek_message (DBusMessageLoader *loader)
4034 if (loader->messages)
4035 return loader->messages->data;
4041 * Pops a loaded message (passing ownership of the message
4042 * to the caller). Returns #NULL if no messages have been
4045 * @param loader the loader.
4046 * @returns the next message, or #NULL if none.
4049 _dbus_message_loader_pop_message (DBusMessageLoader *loader)
4051 return _dbus_list_pop_first (&loader->messages);
4055 * Pops a loaded message inside a list link (passing ownership of the
4056 * message and link to the caller). Returns #NULL if no messages have
4059 * @param loader the loader.
4060 * @returns the next message link, or #NULL if none.
4063 _dbus_message_loader_pop_message_link (DBusMessageLoader *loader)
4065 return _dbus_list_pop_first_link (&loader->messages);
4069 * Returns a popped message link, used to undo a pop.
4071 * @param loader the loader
4072 * @param link the link with a message in it
4075 _dbus_message_loader_putback_message_link (DBusMessageLoader *loader,
4078 _dbus_list_prepend_link (&loader->messages, link);
4082 * Checks whether the loader is confused due to bad data.
4083 * If messages are received that are invalid, the
4084 * loader gets confused and gives up permanently.
4085 * This state is called "corrupted."
4087 * @param loader the loader
4088 * @returns #TRUE if the loader is hosed.
4091 _dbus_message_loader_get_is_corrupted (DBusMessageLoader *loader)
4093 return loader->corrupted;
4097 * Sets the maximum size message we allow.
4099 * @param loader the loader
4100 * @param size the max message size in bytes
4103 _dbus_message_loader_set_max_message_size (DBusMessageLoader *loader,
4106 if (size > MAX_SANE_MESSAGE_SIZE)
4108 _dbus_verbose ("clamping requested max message size %ld to %d\n",
4109 size, MAX_SANE_MESSAGE_SIZE);
4110 size = MAX_SANE_MESSAGE_SIZE;
4112 loader->max_message_size = size;
4116 * Gets the maximum allowed message size in bytes.
4118 * @param loader the loader
4119 * @returns max size in bytes
4122 _dbus_message_loader_get_max_message_size (DBusMessageLoader *loader)
4124 return loader->max_message_size;
4128 #ifdef DBUS_BUILD_TESTS
4129 #include "dbus-test.h"
4133 message_iter_test (DBusMessage *message)
4135 DBusMessageIter iter, dict, array, array2;
4137 unsigned char *data;
4138 dbus_int32_t *our_int_array;
4141 dbus_message_iter_init (message, &iter);
4144 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_STRING)
4145 _dbus_assert_not_reached ("Argument type isn't string");
4147 str = dbus_message_iter_get_string (&iter);
4148 if (strcmp (str, "Test string") != 0)
4149 _dbus_assert_not_reached ("Strings differ");
4152 if (!dbus_message_iter_next (&iter))
4153 _dbus_assert_not_reached ("Reached end of arguments");
4155 /* Signed integer tests */
4156 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_INT32)
4157 _dbus_assert_not_reached ("Argument type isn't int32");
4159 if (dbus_message_iter_get_int32 (&iter) != -0x12345678)
4160 _dbus_assert_not_reached ("Signed integers differ");
4162 if (!dbus_message_iter_next (&iter))
4163 _dbus_assert_not_reached ("Reached end of fields");
4165 /* Unsigned integer tests */
4166 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
4167 _dbus_assert_not_reached ("Argument type isn't int32");
4169 if (dbus_message_iter_get_uint32 (&iter) != 0xedd1e)
4170 _dbus_assert_not_reached ("Unsigned integers differ");
4172 if (!dbus_message_iter_next (&iter))
4173 _dbus_assert_not_reached ("Reached end of arguments");
4176 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DOUBLE)
4177 _dbus_assert_not_reached ("Argument type isn't double");
4179 if (dbus_message_iter_get_double (&iter) != 3.14159)
4180 _dbus_assert_not_reached ("Doubles differ");
4182 if (!dbus_message_iter_next (&iter))
4183 _dbus_assert_not_reached ("Reached end of arguments");
4185 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY)
4186 _dbus_assert_not_reached ("Argument type not an array");
4188 if (dbus_message_iter_get_array_type (&iter) != DBUS_TYPE_DOUBLE)
4189 _dbus_assert_not_reached ("Array type not double");
4192 if (!dbus_message_iter_init_array_iterator (&iter, &array, NULL))
4193 _dbus_assert_not_reached ("Array init failed");
4195 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
4196 _dbus_assert_not_reached ("Argument type isn't double");
4198 if (dbus_message_iter_get_double (&array) != 1.5)
4199 _dbus_assert_not_reached ("Unsigned integers differ");
4201 if (!dbus_message_iter_next (&array))
4202 _dbus_assert_not_reached ("Reached end of arguments");
4204 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
4205 _dbus_assert_not_reached ("Argument type isn't double");
4207 if (dbus_message_iter_get_double (&array) != 2.5)
4208 _dbus_assert_not_reached ("Unsigned integers differ");
4210 if (dbus_message_iter_next (&array))
4211 _dbus_assert_not_reached ("Didn't reach end of arguments");
4213 if (!dbus_message_iter_next (&iter))
4214 _dbus_assert_not_reached ("Reached end of arguments");
4219 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
4220 _dbus_assert_not_reached ("not dict type");
4222 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
4223 _dbus_assert_not_reached ("dict iter failed");
4225 str = dbus_message_iter_get_dict_key (&dict);
4226 if (str == NULL || strcmp (str, "test") != 0)
4227 _dbus_assert_not_reached ("wrong dict key");
4230 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
4231 _dbus_assert_not_reached ("wrong dict entry type");
4233 if (dbus_message_iter_get_uint32 (&dict) != 0xDEADBEEF)
4234 _dbus_assert_not_reached ("wrong dict entry value");
4236 if (!dbus_message_iter_next (&dict))
4237 _dbus_assert_not_reached ("reached end of dict");
4239 /* array of array of int32 (in dict) */
4241 str = dbus_message_iter_get_dict_key (&dict);
4242 if (str == NULL || strcmp (str, "array") != 0)
4243 _dbus_assert_not_reached ("wrong dict key");
4246 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_ARRAY)
4247 _dbus_assert_not_reached ("Argument type not an array");
4249 if (dbus_message_iter_get_array_type (&dict) != DBUS_TYPE_ARRAY)
4250 _dbus_assert_not_reached ("Array type not array");
4252 if (!dbus_message_iter_init_array_iterator (&dict, &array, NULL))
4253 _dbus_assert_not_reached ("Array init failed");
4255 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_ARRAY)
4256 _dbus_assert_not_reached ("Argument type isn't array");
4258 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
4259 _dbus_assert_not_reached ("Array type not int32");
4261 if (!dbus_message_iter_init_array_iterator (&array, &array2, NULL))
4262 _dbus_assert_not_reached ("Array init failed");
4264 if (dbus_message_iter_get_arg_type (&array2) != DBUS_TYPE_INT32)
4265 _dbus_assert_not_reached ("Argument type isn't int32");
4267 if (dbus_message_iter_get_int32 (&array2) != 0x12345678)
4268 _dbus_assert_not_reached ("Signed integers differ");
4270 if (!dbus_message_iter_next (&array2))
4271 _dbus_assert_not_reached ("Reached end of arguments");
4273 if (dbus_message_iter_get_int32 (&array2) != 0x23456781)
4274 _dbus_assert_not_reached ("Signed integers differ");
4276 if (dbus_message_iter_next (&array2))
4277 _dbus_assert_not_reached ("Didn't reached end of arguments");
4279 if (!dbus_message_iter_next (&array))
4280 _dbus_assert_not_reached ("Reached end of arguments");
4282 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
4283 _dbus_assert_not_reached ("Array type not int32");
4285 if (!dbus_message_iter_get_int32_array (&array,
4288 _dbus_assert_not_reached ("couldn't get int32 array");
4290 _dbus_assert (len == 3);
4291 _dbus_assert (our_int_array[0] == 0x34567812 &&
4292 our_int_array[1] == 0x45678123 &&
4293 our_int_array[2] == 0x56781234);
4294 dbus_free (our_int_array);
4296 if (dbus_message_iter_next (&array))
4297 _dbus_assert_not_reached ("Didn't reach end of array");
4299 if (dbus_message_iter_next (&dict))
4300 _dbus_assert_not_reached ("Didn't reach end of dict");
4302 if (!dbus_message_iter_next (&iter))
4303 _dbus_assert_not_reached ("Reached end of arguments");
4305 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_BYTE)
4307 _dbus_warn ("type was: %d\n", dbus_message_iter_get_arg_type (&iter));
4308 _dbus_assert_not_reached ("wrong type after dict (should be byte)");
4311 if (dbus_message_iter_get_byte (&iter) != 0xF0)
4312 _dbus_assert_not_reached ("wrong value after dict");
4315 if (!dbus_message_iter_next (&iter))
4316 _dbus_assert_not_reached ("Reached end of arguments");
4318 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NIL)
4319 _dbus_assert_not_reached ("not a nil type");
4321 if (!dbus_message_iter_next (&iter))
4322 _dbus_assert_not_reached ("Reached end of arguments");
4324 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NAMED)
4325 _dbus_assert_not_reached ("wrong type after dict");
4327 if (!dbus_message_iter_get_named (&iter, &str, &data, &len))
4328 _dbus_assert_not_reached ("failed to get named");
4330 _dbus_assert (strcmp (str, "named")==0);
4331 _dbus_assert (len == 5);
4332 _dbus_assert (strcmp (data, "data")==0);
4336 if (dbus_message_iter_next (&iter))
4337 _dbus_assert_not_reached ("Didn't reach end of arguments");
4342 check_message_handling_type (DBusMessageIter *iter,
4345 DBusMessageIter child_iter;
4351 case DBUS_TYPE_BYTE:
4352 dbus_message_iter_get_byte (iter);
4354 case DBUS_TYPE_BOOLEAN:
4355 dbus_message_iter_get_boolean (iter);
4357 case DBUS_TYPE_INT32:
4358 dbus_message_iter_get_int32 (iter);
4360 case DBUS_TYPE_UINT32:
4361 dbus_message_iter_get_uint32 (iter);
4363 case DBUS_TYPE_DOUBLE:
4364 dbus_message_iter_get_double (iter);
4366 case DBUS_TYPE_STRING:
4369 str = dbus_message_iter_get_string (iter);
4372 _dbus_warn ("NULL string in message\n");
4378 case DBUS_TYPE_NAMED:
4381 unsigned char *data;
4384 if (!dbus_message_iter_get_named (iter, &name, &data, &len))
4386 _dbus_warn ("error reading name from named type\n");
4393 case DBUS_TYPE_ARRAY:
4397 if (!dbus_message_iter_init_array_iterator (iter, &child_iter, &array_type))
4399 _dbus_warn ("Failed to init array iterator\n");
4403 while (dbus_message_iter_has_next (&child_iter))
4405 if (!check_message_handling_type (&child_iter, array_type))
4407 _dbus_warn ("error in array element\n");
4411 if (!dbus_message_iter_next (&child_iter))
4416 case DBUS_TYPE_DICT:
4421 if (!dbus_message_iter_init_dict_iterator (iter, &child_iter))
4423 _dbus_warn ("Failed to init dict iterator\n");
4427 while ((entry_type = dbus_message_iter_get_arg_type (&child_iter)) != DBUS_TYPE_INVALID)
4429 key = dbus_message_iter_get_dict_key (&child_iter);
4432 _dbus_warn ("error reading dict key\n");
4437 if (!check_message_handling_type (&child_iter, entry_type))
4439 _dbus_warn ("error in dict value\n");
4443 if (!dbus_message_iter_next (&child_iter))
4450 _dbus_warn ("unknown type %d\n", type);
4459 check_message_handling (DBusMessage *message)
4461 DBusMessageIter iter;
4464 dbus_uint32_t client_serial;
4468 client_serial = dbus_message_get_serial (message);
4470 /* can't use set_serial due to the assertions at the start of it */
4471 set_uint_field (message, FIELD_CLIENT_SERIAL,
4474 if (client_serial != dbus_message_get_serial (message))
4476 _dbus_warn ("get/set cycle for client_serial did not succeed\n");
4480 /* If we implement message_set_arg (message, n, value)
4481 * then we would want to test it here
4484 dbus_message_iter_init (message, &iter);
4485 while ((type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID)
4487 if (!check_message_handling_type (&iter, type))
4490 if (!dbus_message_iter_next (&iter))
4501 check_have_valid_message (DBusMessageLoader *loader)
4503 DBusMessage *message;
4509 if (!_dbus_message_loader_queue_messages (loader))
4510 _dbus_assert_not_reached ("no memory to queue messages");
4512 if (_dbus_message_loader_get_is_corrupted (loader))
4514 _dbus_warn ("loader corrupted on message that was expected to be valid\n");
4518 message = _dbus_message_loader_pop_message (loader);
4519 if (message == NULL)
4521 _dbus_warn ("didn't load message that was expected to be valid (message not popped)\n");
4525 if (_dbus_string_get_length (&loader->data) > 0)
4527 _dbus_warn ("had leftover bytes from expected-to-be-valid single message\n");
4531 /* Verify that we're able to properly deal with the message.
4532 * For example, this would detect improper handling of messages
4533 * in nonstandard byte order.
4535 if (!check_message_handling (message))
4542 dbus_message_unref (message);
4548 check_invalid_message (DBusMessageLoader *loader)
4554 if (!_dbus_message_loader_queue_messages (loader))
4555 _dbus_assert_not_reached ("no memory to queue messages");
4557 if (!_dbus_message_loader_get_is_corrupted (loader))
4559 _dbus_warn ("loader not corrupted on message that was expected to be invalid\n");
4570 check_incomplete_message (DBusMessageLoader *loader)
4572 DBusMessage *message;
4578 if (!_dbus_message_loader_queue_messages (loader))
4579 _dbus_assert_not_reached ("no memory to queue messages");
4581 if (_dbus_message_loader_get_is_corrupted (loader))
4583 _dbus_warn ("loader corrupted on message that was expected to be valid (but incomplete)\n");
4587 message = _dbus_message_loader_pop_message (loader);
4588 if (message != NULL)
4590 _dbus_warn ("loaded message that was expected to be incomplete\n");
4598 dbus_message_unref (message);
4603 check_loader_results (DBusMessageLoader *loader,
4604 DBusMessageValidity validity)
4606 if (!_dbus_message_loader_queue_messages (loader))
4607 _dbus_assert_not_reached ("no memory to queue messages");
4611 case _DBUS_MESSAGE_VALID:
4612 return check_have_valid_message (loader);
4613 case _DBUS_MESSAGE_INVALID:
4614 return check_invalid_message (loader);
4615 case _DBUS_MESSAGE_INCOMPLETE:
4616 return check_incomplete_message (loader);
4617 case _DBUS_MESSAGE_UNKNOWN:
4621 _dbus_assert_not_reached ("bad DBusMessageValidity");
4627 * Loads the message in the given message file.
4629 * @param filename filename to load
4630 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
4631 * @param data string to load message into
4632 * @returns #TRUE if the message was loaded
4635 dbus_internal_do_not_use_load_message_file (const DBusString *filename,
4647 _dbus_verbose ("Loading raw %s\n", _dbus_string_get_const_data (filename));
4648 dbus_error_init (&error);
4649 if (!_dbus_file_get_contents (data, filename, &error))
4651 _dbus_warn ("Could not load message file %s: %s\n",
4652 _dbus_string_get_const_data (filename),
4654 dbus_error_free (&error);
4660 if (!_dbus_message_data_load (data, filename))
4662 _dbus_warn ("Could not load message file %s\n",
4663 _dbus_string_get_const_data (filename));
4676 * Tries loading the message in the given message file
4677 * and verifies that DBusMessageLoader can handle it.
4679 * @param filename filename to load
4680 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
4681 * @param expected_validity what the message has to be like to return #TRUE
4682 * @returns #TRUE if the message has the expected validity
4685 dbus_internal_do_not_use_try_message_file (const DBusString *filename,
4687 DBusMessageValidity expected_validity)
4694 if (!_dbus_string_init (&data))
4695 _dbus_assert_not_reached ("could not allocate string\n");
4697 if (!dbus_internal_do_not_use_load_message_file (filename, is_raw,
4701 retval = dbus_internal_do_not_use_try_message_data (&data, expected_validity);
4707 if (_dbus_string_get_length (&data) > 0)
4708 _dbus_verbose_bytes_of_string (&data, 0,
4709 _dbus_string_get_length (&data));
4711 _dbus_warn ("Failed message loader test on %s\n",
4712 _dbus_string_get_const_data (filename));
4715 _dbus_string_free (&data);
4721 * Tries loading the given message data.
4724 * @param data the message data
4725 * @param expected_validity what the message has to be like to return #TRUE
4726 * @returns #TRUE if the message has the expected validity
4729 dbus_internal_do_not_use_try_message_data (const DBusString *data,
4730 DBusMessageValidity expected_validity)
4732 DBusMessageLoader *loader;
4740 /* Write the data one byte at a time */
4742 loader = _dbus_message_loader_new ();
4744 len = _dbus_string_get_length (data);
4745 for (i = 0; i < len; i++)
4749 _dbus_message_loader_get_buffer (loader, &buffer);
4750 _dbus_string_append_byte (buffer,
4751 _dbus_string_get_byte (data, i));
4752 _dbus_message_loader_return_buffer (loader, buffer, 1);
4755 if (!check_loader_results (loader, expected_validity))
4758 _dbus_message_loader_unref (loader);
4761 /* Write the data all at once */
4763 loader = _dbus_message_loader_new ();
4768 _dbus_message_loader_get_buffer (loader, &buffer);
4769 _dbus_string_copy (data, 0, buffer,
4770 _dbus_string_get_length (buffer));
4771 _dbus_message_loader_return_buffer (loader, buffer, 1);
4774 if (!check_loader_results (loader, expected_validity))
4777 _dbus_message_loader_unref (loader);
4780 /* Write the data 2 bytes at a time */
4782 loader = _dbus_message_loader_new ();
4784 len = _dbus_string_get_length (data);
4785 for (i = 0; i < len; i += 2)
4789 _dbus_message_loader_get_buffer (loader, &buffer);
4790 _dbus_string_append_byte (buffer,
4791 _dbus_string_get_byte (data, i));
4793 _dbus_string_append_byte (buffer,
4794 _dbus_string_get_byte (data, i+1));
4795 _dbus_message_loader_return_buffer (loader, buffer, 1);
4798 if (!check_loader_results (loader, expected_validity))
4801 _dbus_message_loader_unref (loader);
4809 _dbus_message_loader_unref (loader);
4815 process_test_subdir (const DBusString *test_base_dir,
4817 DBusMessageValidity validity,
4818 DBusForeachMessageFileFunc function,
4821 DBusString test_directory;
4822 DBusString filename;
4830 if (!_dbus_string_init (&test_directory))
4831 _dbus_assert_not_reached ("didn't allocate test_directory\n");
4833 _dbus_string_init_const (&filename, subdir);
4835 if (!_dbus_string_copy (test_base_dir, 0,
4836 &test_directory, 0))
4837 _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory");
4839 if (!_dbus_concat_dir_and_file (&test_directory, &filename))
4840 _dbus_assert_not_reached ("couldn't allocate full path");
4842 _dbus_string_free (&filename);
4843 if (!_dbus_string_init (&filename))
4844 _dbus_assert_not_reached ("didn't allocate filename string\n");
4846 dbus_error_init (&error);
4847 dir = _dbus_directory_open (&test_directory, &error);
4850 _dbus_warn ("Could not open %s: %s\n",
4851 _dbus_string_get_const_data (&test_directory),
4853 dbus_error_free (&error);
4857 printf ("Testing:\n");
4860 while (_dbus_directory_get_next_file (dir, &filename, &error))
4862 DBusString full_path;
4865 if (!_dbus_string_init (&full_path))
4866 _dbus_assert_not_reached ("couldn't init string");
4868 if (!_dbus_string_copy (&test_directory, 0, &full_path, 0))
4869 _dbus_assert_not_reached ("couldn't copy dir to full_path");
4871 if (!_dbus_concat_dir_and_file (&full_path, &filename))
4872 _dbus_assert_not_reached ("couldn't concat file to dir");
4874 if (_dbus_string_ends_with_c_str (&filename, ".message"))
4876 else if (_dbus_string_ends_with_c_str (&filename, ".message-raw"))
4880 _dbus_verbose ("Skipping non-.message file %s\n",
4881 _dbus_string_get_const_data (&filename));
4882 _dbus_string_free (&full_path);
4887 _dbus_string_get_const_data (&filename));
4889 _dbus_verbose (" expecting %s\n",
4890 validity == _DBUS_MESSAGE_VALID ? "valid" :
4891 (validity == _DBUS_MESSAGE_INVALID ? "invalid" :
4892 (validity == _DBUS_MESSAGE_INCOMPLETE ? "incomplete" : "unknown")));
4894 if (! (*function) (&full_path, is_raw, validity, user_data))
4896 _dbus_string_free (&full_path);
4900 _dbus_string_free (&full_path);
4903 if (dbus_error_is_set (&error))
4905 _dbus_warn ("Could not get next file in %s: %s\n",
4906 _dbus_string_get_const_data (&test_directory),
4908 dbus_error_free (&error);
4917 _dbus_directory_close (dir);
4918 _dbus_string_free (&test_directory);
4919 _dbus_string_free (&filename);
4925 * Runs the given function on every message file in the test suite.
4926 * The function should return #FALSE on test failure or fatal error.
4928 * @param test_data_dir root dir of the test suite data files (top_srcdir/test/data)
4929 * @param func the function to run
4930 * @param user_data data for function
4931 * @returns #FALSE if there's a failure
4934 dbus_internal_do_not_use_foreach_message_file (const char *test_data_dir,
4935 DBusForeachMessageFileFunc func,
4938 DBusString test_directory;
4943 _dbus_string_init_const (&test_directory, test_data_dir);
4945 if (!process_test_subdir (&test_directory, "valid-messages",
4946 _DBUS_MESSAGE_VALID, func, user_data))
4949 if (!process_test_subdir (&test_directory, "invalid-messages",
4950 _DBUS_MESSAGE_INVALID, func, user_data))
4953 if (!process_test_subdir (&test_directory, "incomplete-messages",
4954 _DBUS_MESSAGE_INCOMPLETE, func, user_data))
4961 _dbus_string_free (&test_directory);
4967 verify_test_message (DBusMessage *message)
4969 dbus_int32_t our_int;
4972 dbus_bool_t our_bool;
4973 dbus_int32_t *our_int_array;
4974 dbus_uint32_t our_uint32;
4975 int our_int_array_len;
4976 DBusMessageIter iter, dict;
4979 dbus_message_iter_init (message, &iter);
4981 dbus_error_init (&error);
4982 if (!dbus_message_iter_get_args (&iter, &error,
4983 DBUS_TYPE_INT32, &our_int,
4984 DBUS_TYPE_STRING, &our_str,
4985 DBUS_TYPE_DOUBLE, &our_double,
4986 DBUS_TYPE_BOOLEAN, &our_bool,
4987 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &our_int_array, &our_int_array_len,
4990 _dbus_verbose ("error: %s - %s\n", error.name, (error.message != NULL)?error.message: "no message");
4991 _dbus_assert_not_reached ("Could not get arguments");
4994 if (our_int != -0x12345678)
4995 _dbus_assert_not_reached ("integers differ!");
4997 if (our_double != 3.14159)
4998 _dbus_assert_not_reached ("doubles differ!");
5000 if (strcmp (our_str, "Test string") != 0)
5001 _dbus_assert_not_reached ("strings differ!");
5002 dbus_free (our_str);
5005 _dbus_assert_not_reached ("booleans differ");
5007 if (our_int_array_len != 4 ||
5008 our_int_array[0] != 0x12345678 ||
5009 our_int_array[1] != 0x23456781 ||
5010 our_int_array[2] != 0x34567812 ||
5011 our_int_array[3] != 0x45678123)
5012 _dbus_assert_not_reached ("array differ");
5013 dbus_free (our_int_array);
5015 if (!dbus_message_iter_next (&iter))
5016 _dbus_assert_not_reached ("Reached end of arguments");
5018 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
5019 _dbus_assert_not_reached ("not dict type");
5021 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
5022 _dbus_assert_not_reached ("dict iter failed");
5024 our_str = dbus_message_iter_get_dict_key (&dict);
5025 if (our_str == NULL || strcmp (our_str, "test") != 0)
5026 _dbus_assert_not_reached ("wrong dict key");
5027 dbus_free (our_str);
5029 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
5031 _dbus_verbose ("dict entry type: %d\n", dbus_message_iter_get_arg_type (&dict));
5032 _dbus_assert_not_reached ("wrong dict entry type");
5035 if ((our_uint32 = dbus_message_iter_get_uint32 (&dict)) != 0xDEADBEEF)
5037 _dbus_verbose ("dict entry val: %x\n", our_uint32);
5038 _dbus_assert_not_reached ("wrong dict entry value");
5041 if (dbus_message_iter_next (&dict))
5042 _dbus_assert_not_reached ("Didn't reach end of dict");
5044 if (!dbus_message_iter_next (&iter))
5045 _dbus_assert_not_reached ("Reached end of arguments");
5047 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
5048 _dbus_assert_not_reached ("wrong type after dict");
5050 if (dbus_message_iter_get_uint32 (&iter) != 0xCAFEBABE)
5051 _dbus_assert_not_reached ("wrong value after dict");
5053 if (dbus_message_iter_next (&iter))
5054 _dbus_assert_not_reached ("Didn't reach end of arguments");
5058 * @ingroup DBusMessageInternals
5059 * Unit test for DBusMessage.
5061 * @returns #TRUE on success.
5064 _dbus_message_test (const char *test_data_dir)
5066 DBusMessage *message;
5067 DBusMessageLoader *loader;
5068 DBusMessageIter iter, child_iter, child_iter2, child_iter3;
5074 const dbus_uint32_t our_int32_array[] = { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
5076 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
5078 /* Test the vararg functions */
5079 message = dbus_message_new ("org.freedesktop.DBus.Test", "testMessage");
5080 _dbus_message_set_serial (message, 1);
5081 dbus_message_append_args (message,
5082 DBUS_TYPE_INT32, -0x12345678,
5083 DBUS_TYPE_STRING, "Test string",
5084 DBUS_TYPE_DOUBLE, 3.14159,
5085 DBUS_TYPE_BOOLEAN, TRUE,
5086 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, our_int32_array, 4,
5089 dbus_message_append_iter_init (message, &iter);
5090 dbus_message_iter_append_dict (&iter, &child_iter);
5091 dbus_message_iter_append_dict_key (&child_iter, "test");
5092 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
5093 dbus_message_iter_append_uint32 (&iter, 0xCAFEBABE);
5095 _dbus_verbose_bytes_of_string (&message->header, 0,
5096 _dbus_string_get_length (&message->header));
5097 _dbus_verbose_bytes_of_string (&message->body, 0,
5098 _dbus_string_get_length (&message->body));
5100 verify_test_message (message);
5102 copy = dbus_message_copy (message);
5104 _dbus_assert (message->client_serial == copy->client_serial);
5105 _dbus_assert (message->reply_serial == copy->reply_serial);
5106 _dbus_assert (message->header_padding == copy->header_padding);
5108 _dbus_assert (_dbus_string_get_length (&message->header) ==
5109 _dbus_string_get_length (©->header));
5111 _dbus_assert (_dbus_string_get_length (&message->body) ==
5112 _dbus_string_get_length (©->body));
5114 verify_test_message (copy);
5116 name1 = dbus_message_get_name (message);
5117 name2 = dbus_message_get_name (copy);
5119 _dbus_assert (strcmp (name1, name2) == 0);
5121 dbus_message_unref (message);
5122 dbus_message_unref (copy);
5124 message = dbus_message_new ("org.freedesktop.DBus.Test", "testMessage");
5125 _dbus_message_set_serial (message, 1);
5126 dbus_message_set_reply_serial (message, 0x12345678);
5128 dbus_message_append_iter_init (message, &iter);
5129 dbus_message_iter_append_string (&iter, "Test string");
5130 dbus_message_iter_append_int32 (&iter, -0x12345678);
5131 dbus_message_iter_append_uint32 (&iter, 0xedd1e);
5132 dbus_message_iter_append_double (&iter, 3.14159);
5134 dbus_message_iter_append_array (&iter, &child_iter, DBUS_TYPE_DOUBLE);
5135 dbus_message_iter_append_double (&child_iter, 1.5);
5136 dbus_message_iter_append_double (&child_iter, 2.5);
5139 dbus_message_iter_append_dict (&iter, &child_iter);
5140 dbus_message_iter_append_dict_key (&child_iter, "test");
5141 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
5143 /* array of array of int32 (in dict) */
5144 dbus_message_iter_append_dict_key (&child_iter, "array");
5145 dbus_message_iter_append_array (&child_iter, &child_iter2, DBUS_TYPE_ARRAY);
5146 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
5147 dbus_message_iter_append_int32 (&child_iter3, 0x12345678);
5148 dbus_message_iter_append_int32 (&child_iter3, 0x23456781);
5149 _dbus_warn ("next call expected to fail with wrong array type\n");
5150 _dbus_assert (!dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_UINT32));
5151 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
5152 dbus_message_iter_append_int32 (&child_iter3, 0x34567812);
5153 dbus_message_iter_append_int32 (&child_iter3, 0x45678123);
5154 dbus_message_iter_append_int32 (&child_iter3, 0x56781234);
5156 dbus_message_iter_append_byte (&iter, 0xF0);
5158 dbus_message_iter_append_nil (&iter);
5160 dbus_message_iter_append_named (&iter, "named",
5163 message_iter_test (message);
5165 /* Message loader test */
5166 _dbus_message_lock (message);
5167 loader = _dbus_message_loader_new ();
5169 /* Write the header data one byte at a time */
5170 data = _dbus_string_get_const_data (&message->header);
5171 for (i = 0; i < _dbus_string_get_length (&message->header); i++)
5175 _dbus_message_loader_get_buffer (loader, &buffer);
5176 _dbus_string_append_byte (buffer, data[i]);
5177 _dbus_message_loader_return_buffer (loader, buffer, 1);
5180 /* Write the body data one byte at a time */
5181 data = _dbus_string_get_const_data (&message->body);
5182 for (i = 0; i < _dbus_string_get_length (&message->body); i++)
5186 _dbus_message_loader_get_buffer (loader, &buffer);
5187 _dbus_string_append_byte (buffer, data[i]);
5188 _dbus_message_loader_return_buffer (loader, buffer, 1);
5191 dbus_message_unref (message);
5193 /* Now pop back the message */
5194 if (!_dbus_message_loader_queue_messages (loader))
5195 _dbus_assert_not_reached ("no memory to queue messages");
5197 if (_dbus_message_loader_get_is_corrupted (loader))
5198 _dbus_assert_not_reached ("message loader corrupted");
5200 message = _dbus_message_loader_pop_message (loader);
5202 _dbus_assert_not_reached ("received a NULL message");
5204 if (dbus_message_get_reply_serial (message) != 0x12345678)
5205 _dbus_assert_not_reached ("reply serial fields differ");
5207 message_iter_test (message);
5209 dbus_message_unref (message);
5210 _dbus_message_loader_unref (loader);
5212 /* Now load every message in test_data_dir if we have one */
5213 if (test_data_dir == NULL)
5216 return dbus_internal_do_not_use_foreach_message_file (test_data_dir,
5217 (DBusForeachMessageFileFunc)
5218 dbus_internal_do_not_use_try_message_file,
5222 #endif /* DBUS_BUILD_TESTS */