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_int32_t client_serial; /**< Cached client serial value for speed */
96 dbus_int32_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;
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 struct DBusMessageRealIter DBusMessageRealIter;
121 * @brief Internals of DBusMessageIter
123 * Object representing a position in a message. All fields are internal.
125 struct DBusMessageRealIter
127 DBusMessageRealIter *parent_iter; /**< parent iter, or NULL */
128 DBusMessage *message; /**< Message used */
129 dbus_uint32_t changed_stamp; /**< stamp to detect invalid iters */
131 /* This is an int instead of an enum to get a guaranteed size for the dummy: */
132 int type; /**< type of iter */
134 int pos; /**< Current position in the string */
135 int end; /**< position right after the container */
136 int container_start; /**< offset of the start of the container */
137 int container_length_pos; /**< offset of the length of the container */
139 int wrote_dict_key; /**< whether we wrote the dict key for the current dict element */
141 int array_type_pos; /**< pointer to the position of the array element type */
142 int array_type_done; /**< TRUE if the array type is fully finished */
146 * Gets the data to be sent over the network for this message.
147 * The header and then the body should be written out.
148 * This function is guaranteed to always return the same
149 * data once a message is locked (with _dbus_message_lock()).
151 * @param message the message.
152 * @param header return location for message header data.
153 * @param body return location for message body data.
156 _dbus_message_get_network_data (DBusMessage *message,
157 const DBusString **header,
158 const DBusString **body)
160 _dbus_assert (message->locked);
162 *header = &message->header;
163 *body = &message->body;
167 clear_header_padding (DBusMessage *message)
169 _dbus_string_shorten (&message->header,
170 message->header_padding);
171 message->header_padding = 0;
175 append_header_padding (DBusMessage *message)
178 old_len = _dbus_string_get_length (&message->header);
179 if (!_dbus_string_align_length (&message->header, 8))
182 message->header_padding = _dbus_string_get_length (&message->header) - old_len;
188 adjust_field_offsets (DBusMessage *message,
198 while (i < FIELD_LAST)
200 if (message->header_fields[i].offset > offsets_after)
201 message->header_fields[i].offset += delta;
208 get_string_field (DBusMessage *message,
215 offset = message->header_fields[field].offset;
217 _dbus_assert (field < FIELD_LAST);
222 /* offset points to string length, string data follows it */
223 /* FIXME _dbus_demarshal_const_string() that returned
224 * a reference to the string plus its len might be nice.
228 *len = _dbus_demarshal_uint32 (&message->header,
233 data = _dbus_string_get_const_data (&message->header);
235 return data + (offset + 4);
239 get_int_field (DBusMessage *message,
244 _dbus_assert (field < FIELD_LAST);
246 offset = message->header_fields[field].offset;
249 return -1; /* useless if -1 is a valid value of course */
251 return _dbus_demarshal_int32 (&message->header,
258 append_int_field (DBusMessage *message,
265 _dbus_assert (!message->locked);
267 clear_header_padding (message);
269 orig_len = _dbus_string_get_length (&message->header);
271 if (!_dbus_string_align_length (&message->header, 4))
274 if (!_dbus_string_append_len (&message->header, name, 4))
277 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_INT32))
280 if (!_dbus_string_align_length (&message->header, 4))
283 message->header_fields[FIELD_REPLY_SERIAL].offset =
284 _dbus_string_get_length (&message->header);
286 if (!_dbus_marshal_int32 (&message->header, message->byte_order,
290 if (!append_header_padding (message))
296 message->header_fields[field].offset = -1;
297 _dbus_string_set_length (&message->header, orig_len);
299 /* this must succeed because it was allocated on function entry and
300 * DBusString doesn't ever realloc smaller
302 if (!append_header_padding (message))
303 _dbus_assert_not_reached ("failed to reappend header padding");
308 append_string_field (DBusMessage *message,
315 _dbus_assert (!message->locked);
317 clear_header_padding (message);
319 orig_len = _dbus_string_get_length (&message->header);
321 if (!_dbus_string_align_length (&message->header, 4))
324 if (!_dbus_string_append_len (&message->header, name, 4))
327 if (!_dbus_string_append_byte (&message->header, DBUS_TYPE_STRING))
330 if (!_dbus_string_align_length (&message->header, 4))
333 message->header_fields[field].offset =
334 _dbus_string_get_length (&message->header);
336 if (!_dbus_marshal_string (&message->header, message->byte_order,
340 if (!append_header_padding (message))
346 message->header_fields[field].offset = -1;
347 _dbus_string_set_length (&message->header, orig_len);
349 /* this must succeed because it was allocated on function entry and
350 * DBusString doesn't ever realloc smaller
352 if (!append_header_padding (message))
353 _dbus_assert_not_reached ("failed to reappend header padding");
358 #ifdef DBUS_BUILD_TESTS
359 /* This isn't used, but building it when tests are enabled just to
360 * keep it compiling if we need it in future
363 delete_int_field (DBusMessage *message,
366 int offset = message->header_fields[field].offset;
368 _dbus_assert (!message->locked);
369 _dbus_assert (field_is_named[field]);
374 clear_header_padding (message);
376 /* The field typecode and name take up 8 bytes */
377 _dbus_string_delete (&message->header,
381 message->header_fields[field].offset = -1;
383 adjust_field_offsets (message,
387 append_header_padding (message);
392 delete_string_field (DBusMessage *message,
395 int offset = message->header_fields[field].offset;
399 _dbus_assert (!message->locked);
400 _dbus_assert (field_is_named[field]);
405 clear_header_padding (message);
407 get_string_field (message, field, &len);
409 /* The field typecode and name take up 8 bytes, and the nul
410 * termination is 1 bytes, string length integer is 4 bytes
412 delete_len = 8 + 4 + 1 + len;
414 _dbus_string_delete (&message->header,
418 message->header_fields[field].offset = -1;
420 adjust_field_offsets (message,
424 append_header_padding (message);
428 set_int_field (DBusMessage *message,
432 int offset = message->header_fields[field].offset;
434 _dbus_assert (!message->locked);
438 /* need to append the field */
442 case FIELD_REPLY_SERIAL:
443 return append_int_field (message, field,
444 DBUS_HEADER_FIELD_REPLY,
447 _dbus_assert_not_reached ("appending an int field we don't support appending");
453 _dbus_marshal_set_int32 (&message->header,
462 set_uint_field (DBusMessage *message,
466 int offset = message->header_fields[field].offset;
468 _dbus_assert (!message->locked);
472 /* need to append the field */
477 _dbus_assert_not_reached ("appending a uint field we don't support appending");
483 _dbus_marshal_set_uint32 (&message->header,
492 set_string_field (DBusMessage *message,
496 int offset = message->header_fields[field].offset;
498 _dbus_assert (!message->locked);
499 _dbus_assert (value != NULL);
503 /* need to append the field */
508 return append_string_field (message, field,
509 DBUS_HEADER_FIELD_SENDER,
512 _dbus_assert_not_reached ("appending a string field we don't support appending");
523 clear_header_padding (message);
525 old_len = _dbus_string_get_length (&message->header);
527 len = strlen (value);
529 _dbus_string_init_const_len (&v, value,
530 len + 1); /* include nul */
531 if (!_dbus_marshal_set_string (&message->header,
537 new_len = _dbus_string_get_length (&message->header);
539 adjust_field_offsets (message,
543 if (!append_header_padding (message))
549 /* this must succeed because it was allocated on function entry and
550 * DBusString doesn't ever realloc smaller
552 if (!append_header_padding (message))
553 _dbus_assert_not_reached ("failed to reappend header padding");
560 * Sets the serial number of a message.
561 * This can only be done once on a message.
563 * @param message the message
564 * @param serial the serial
567 _dbus_message_set_serial (DBusMessage *message,
570 _dbus_assert (!message->locked);
571 _dbus_assert (dbus_message_get_serial (message) < 0);
573 set_int_field (message, FIELD_CLIENT_SERIAL,
575 message->client_serial = serial;
579 * Sets the reply serial of a message (the client serial
580 * of the message this is a reply to).
582 * @param message the message
583 * @param reply_serial the client serial
584 * @returns #FALSE if not enough memory
587 dbus_message_set_reply_serial (DBusMessage *message,
588 dbus_int32_t reply_serial)
590 _dbus_assert (!message->locked);
592 if (set_int_field (message, FIELD_REPLY_SERIAL,
595 message->reply_serial = reply_serial;
603 * Returns the serial of a message or -1 if none has been specified.
604 * The message's serial number is provided by the application sending
605 * the message and is used to identify replies to this message.
607 * @param message the message
608 * @returns the client serial
611 dbus_message_get_serial (DBusMessage *message)
613 return message->client_serial;
617 * Returns the serial that the message is
618 * a reply to or -1 if none.
620 * @param message the message
621 * @returns the reply serial
624 dbus_message_get_reply_serial (DBusMessage *message)
626 return message->reply_serial;
630 * Adds a counter to be incremented immediately with the
631 * size of this message, and decremented by the size
632 * of this message when this message if finalized.
633 * The link contains a counter with its refcount already
634 * incremented, but the counter itself not incremented.
635 * Ownership of link and counter refcount is passed to
638 * @param message the message
639 * @param link link with counter as data
642 _dbus_message_add_size_counter_link (DBusMessage *message,
645 /* right now we don't recompute the delta when message
646 * size changes, and that's OK for current purposes
647 * I think, but could be important to change later.
648 * Do recompute it whenever there are no outstanding counters,
649 * since it's basically free.
651 if (message->size_counters == NULL)
653 message->size_counter_delta =
654 _dbus_string_get_length (&message->header) +
655 _dbus_string_get_length (&message->body);
658 _dbus_verbose ("message has size %ld\n",
659 message->size_counter_delta);
663 _dbus_list_append_link (&message->size_counters, link);
665 _dbus_counter_adjust (link->data, message->size_counter_delta);
669 * Adds a counter to be incremented immediately with the
670 * size of this message, and decremented by the size
671 * of this message when this message if finalized.
673 * @param message the message
674 * @param counter the counter
675 * @returns #FALSE if no memory
678 _dbus_message_add_size_counter (DBusMessage *message,
679 DBusCounter *counter)
683 link = _dbus_list_alloc_link (counter);
687 _dbus_counter_ref (counter);
688 _dbus_message_add_size_counter_link (message, link);
694 * Removes a counter tracking the size of this message, and decrements
695 * the counter by the size of this message.
697 * @param message the message
698 * @param counter the counter
701 _dbus_message_remove_size_counter (DBusMessage *message,
702 DBusCounter *counter)
704 if (!_dbus_list_remove_last (&message->size_counters,
706 _dbus_assert_not_reached ("Removed a message size counter that was not added");
708 _dbus_counter_adjust (counter, message->size_counter_delta);
710 _dbus_counter_unref (counter);
714 dbus_message_create_header (DBusMessage *message,
720 if (!_dbus_string_append_byte (&message->header, message->byte_order))
724 if (!_dbus_string_append_byte (&message->header, flags))
727 if (!_dbus_string_append_byte (&message->header, DBUS_MAJOR_PROTOCOL_VERSION))
730 if (!_dbus_string_append_byte (&message->header, 0))
733 message->header_fields[FIELD_HEADER_LENGTH].offset = 4;
734 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
737 message->header_fields[FIELD_BODY_LENGTH].offset = 8;
738 if (!_dbus_marshal_uint32 (&message->header, message->byte_order, 0))
741 message->header_fields[FIELD_CLIENT_SERIAL].offset = 12;
742 if (!_dbus_marshal_int32 (&message->header, message->byte_order, -1))
745 /* Marshal message service */
748 if (!append_string_field (message,
750 DBUS_HEADER_FIELD_SERVICE,
755 _dbus_assert (name != NULL);
756 if (!append_string_field (message,
758 DBUS_HEADER_FIELD_NAME,
766 * Locks a message. Allows checking that applications don't keep a
767 * reference to a message in the outgoing queue and change it
768 * underneath us. Messages are locked when they enter the outgoing
769 * queue (dbus_connection_send_message()), and the library complains
770 * if the message is modified while locked.
772 * @param message the message to lock.
775 _dbus_message_lock (DBusMessage *message)
777 if (!message->locked)
779 /* Fill in our lengths */
780 set_uint_field (message,
782 _dbus_string_get_length (&message->header));
784 set_uint_field (message,
786 _dbus_string_get_length (&message->body));
788 message->locked = TRUE;
795 * @defgroup DBusMessage DBusMessage
797 * @brief Message to be sent or received over a DBusConnection.
799 * A DBusMessage is the most basic unit of communication over a
800 * DBusConnection. A DBusConnection represents a stream of messages
801 * received from a remote application, and a stream of messages
802 * sent to a remote application.
808 * @typedef DBusMessage
810 * Opaque data type representing a message received from or to be
811 * sent to another application.
815 dbus_message_new_empty_header (void)
817 DBusMessage *message;
820 message = dbus_new0 (DBusMessage, 1);
824 message->refcount = 1;
825 message->byte_order = DBUS_COMPILER_BYTE_ORDER;
826 message->client_serial = -1;
827 message->reply_serial = -1;
830 while (i < FIELD_LAST)
832 message->header_fields[i].offset = -1;
836 if (!_dbus_string_init (&message->header))
842 if (!_dbus_string_init (&message->body))
844 _dbus_string_free (&message->header);
854 * Constructs a new message. Returns #NULL if memory can't be
855 * allocated for the message. The service may be #NULL in which case
856 * no service is set; this is appropriate when using D-BUS in a
857 * peer-to-peer context (no message bus).
859 * @todo reverse the arguments, first 'name' then 'service'
860 * as 'name' is more fundamental
862 * @param service service that the message should be sent to or #NULL
863 * @param name name of the message
864 * @returns a new DBusMessage, free with dbus_message_unref()
865 * @see dbus_message_unref()
868 dbus_message_new (const char *service,
871 DBusMessage *message;
873 message = dbus_message_new_empty_header ();
877 if (!dbus_message_create_header (message, service, name))
879 dbus_message_unref (message);
887 * Constructs a message that is a reply to some other
888 * message. Returns #NULL if memory can't be allocated
891 * @param original_message the message which the created
892 * message is a reply to.
893 * @returns a new DBusMessage, free with dbus_message_unref()
894 * @see dbus_message_new(), dbus_message_unref()
897 dbus_message_new_reply (DBusMessage *original_message)
899 DBusMessage *message;
900 const char *sender, *name;
902 sender = get_string_field (original_message,
904 name = get_string_field (original_message,
907 /* sender is allowed to be null here in peer-to-peer case */
909 message = dbus_message_new (sender, name);
914 if (!dbus_message_set_reply_serial (message,
915 dbus_message_get_serial (original_message)))
917 dbus_message_unref (message);
925 * Creates a new message that is an error reply to a certain message.
927 * @param original_message the original message
928 * @param error_name the error name
929 * @param error_message the error message string
930 * @returns a new error message
933 dbus_message_new_error_reply (DBusMessage *original_message,
934 const char *error_name,
935 const char *error_message)
937 DBusMessage *message;
939 DBusMessageIter iter;
941 sender = get_string_field (original_message,
944 _dbus_assert (sender != NULL);
946 message = dbus_message_new (sender, error_name);
951 if (!dbus_message_set_reply_serial (message,
952 dbus_message_get_serial (original_message)))
954 dbus_message_unref (message);
958 dbus_message_append_iter_init (message, &iter);
959 if (!dbus_message_iter_append_string (&iter, error_message))
961 dbus_message_unref (message);
965 dbus_message_set_is_error (message, TRUE);
971 * Creates a new message that is an exact replica of the message
972 * specified, except that its refcount is set to 1.
974 * @param message the message.
975 * @returns the new message.
978 dbus_message_copy (const DBusMessage *message)
983 retval = dbus_new0 (DBusMessage, 1);
987 retval->refcount = 1;
988 retval->byte_order = message->byte_order;
989 retval->client_serial = message->client_serial;
990 retval->reply_serial = message->reply_serial;
991 retval->header_padding = message->header_padding;
992 retval->locked = FALSE;
994 if (!_dbus_string_init (&retval->header))
1000 if (!_dbus_string_init (&retval->body))
1002 _dbus_string_free (&retval->header);
1007 if (!_dbus_string_copy (&message->header, 0,
1008 &retval->header, 0))
1010 _dbus_string_free (&retval->header);
1011 _dbus_string_free (&retval->body);
1017 if (!_dbus_string_copy (&message->body, 0,
1020 _dbus_string_free (&retval->header);
1021 _dbus_string_free (&retval->body);
1027 for (i = 0; i < FIELD_LAST; i++)
1029 retval->header_fields[i].offset = message->header_fields[i].offset;
1037 * Increments the reference count of a DBusMessage.
1039 * @param message The message
1040 * @see dbus_message_unref
1043 dbus_message_ref (DBusMessage *message)
1045 dbus_atomic_t refcount;
1047 refcount = _dbus_atomic_inc (&message->refcount);
1048 _dbus_assert (refcount > 1);
1052 free_size_counter (void *element,
1055 DBusCounter *counter = element;
1056 DBusMessage *message = data;
1058 _dbus_counter_adjust (counter, - message->size_counter_delta);
1060 _dbus_counter_unref (counter);
1064 * Decrements the reference count of a DBusMessage.
1066 * @param message The message
1067 * @see dbus_message_ref
1070 dbus_message_unref (DBusMessage *message)
1072 dbus_atomic_t refcount;
1074 refcount = _dbus_atomic_dec (&message->refcount);
1076 _dbus_assert (refcount >= 0);
1080 _dbus_list_foreach (&message->size_counters,
1081 free_size_counter, message);
1082 _dbus_list_clear (&message->size_counters);
1084 _dbus_string_free (&message->header);
1085 _dbus_string_free (&message->body);
1087 dbus_free (message);
1092 * Gets the name of a message.
1094 * @param message the message
1095 * @returns the message name (should not be freed)
1098 dbus_message_get_name (DBusMessage *message)
1100 return get_string_field (message, FIELD_NAME, NULL);
1104 * Gets the destination service of a message.
1106 * @todo I think if we have set_sender/get_sender,
1107 * this function might be better named set_destination/
1108 * get_destination for clarity, as the sender
1109 * is also a service name.
1111 * @param message the message
1112 * @returns the message destination service (should not be freed)
1115 dbus_message_get_service (DBusMessage *message)
1117 return get_string_field (message, FIELD_SERVICE, NULL);
1121 * Appends fields to a message given a variable argument
1122 * list. The variable argument list should contain the type
1123 * of the argument followed by the value to add.
1124 * Array values are specified by a int typecode followed by a pointer
1125 * to the array followed by an int giving the length of the array.
1126 * The argument list must be terminated with 0.
1128 * This function doesn't support dicts or non-fundamental arrays.
1130 * @param message the message
1131 * @param first_arg_type type of the first argument
1132 * @param ... value of first argument, list of additional type-value pairs
1133 * @returns #TRUE on success
1136 dbus_message_append_args (DBusMessage *message,
1143 va_start (var_args, first_arg_type);
1144 retval = dbus_message_append_args_valist (message,
1153 * This function takes a va_list for use by language bindings
1155 * @todo: Shouldn't this function clean up the changes to the message
1158 * @see dbus_message_append_args.
1159 * @param message the message
1160 * @param first_arg_type type of first argument
1161 * @param var_args value of first argument, then list of type/value pairs
1162 * @returns #TRUE on success
1165 dbus_message_append_args_valist (DBusMessage *message,
1170 DBusMessageIter iter;
1172 old_len = _dbus_string_get_length (&message->body);
1174 type = first_arg_type;
1176 dbus_message_append_iter_init (message, &iter);
1183 if (!dbus_message_iter_append_nil (&iter))
1186 case DBUS_TYPE_BOOLEAN:
1187 if (!dbus_message_iter_append_boolean (&iter, va_arg (var_args, dbus_bool_t)))
1190 case DBUS_TYPE_INT32:
1191 if (!dbus_message_iter_append_int32 (&iter, va_arg (var_args, dbus_int32_t)))
1194 case DBUS_TYPE_UINT32:
1195 if (!dbus_message_iter_append_uint32 (&iter, va_arg (var_args, dbus_uint32_t)))
1198 case DBUS_TYPE_DOUBLE:
1199 if (!dbus_message_iter_append_double (&iter, va_arg (var_args, double)))
1202 case DBUS_TYPE_STRING:
1203 if (!dbus_message_iter_append_string (&iter, va_arg (var_args, const char *)))
1206 case DBUS_TYPE_NAMED:
1209 unsigned char *data;
1212 name = va_arg (var_args, const char *);
1213 data = va_arg (var_args, unsigned char *);
1214 len = va_arg (var_args, int);
1216 if (!dbus_message_iter_append_named (&iter, name, data, len))
1220 case DBUS_TYPE_ARRAY:
1225 type = va_arg (var_args, int);
1226 data = va_arg (var_args, void *);
1227 len = va_arg (var_args, int);
1231 case DBUS_TYPE_BYTE:
1232 if (!dbus_message_iter_append_byte_array (&iter, (unsigned char *)data, len))
1235 case DBUS_TYPE_BOOLEAN:
1236 if (!dbus_message_iter_append_boolean_array (&iter, (unsigned char *)data, len))
1239 case DBUS_TYPE_INT32:
1240 if (!dbus_message_iter_append_int32_array (&iter, (dbus_int32_t *)data, len))
1243 case DBUS_TYPE_UINT32:
1244 if (!dbus_message_iter_append_uint32_array (&iter, (dbus_uint32_t *)data, len))
1247 case DBUS_TYPE_DOUBLE:
1248 if (!dbus_message_iter_append_double_array (&iter, (double *)data, len))
1251 case DBUS_TYPE_STRING:
1252 if (!dbus_message_iter_append_string_array (&iter, (const char **)data, len))
1256 case DBUS_TYPE_ARRAY:
1257 case DBUS_TYPE_NAMED:
1258 case DBUS_TYPE_DICT:
1259 _dbus_warn ("dbus_message_append_args_valist doesn't support recursive arrays\n");
1262 _dbus_warn ("Unknown field type %d\n", type);
1268 case DBUS_TYPE_DICT:
1269 _dbus_warn ("dbus_message_append_args_valist doesn't support dicts\n");
1272 _dbus_warn ("Unknown field type %d\n", type);
1276 type = va_arg (var_args, int);
1287 * Gets arguments from a message given a variable argument list.
1288 * The variable argument list should contain the type of the
1289 * argumen followed by a pointer to where the value should be
1290 * stored. The list is terminated with 0.
1292 * @param message the message
1293 * @param error error to be filled in on failure
1294 * @param first_arg_type the first argument type
1295 * @param ... location for first argument value, then list of type-location pairs
1296 * @returns #FALSE if the error was set
1299 dbus_message_get_args (DBusMessage *message,
1307 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1309 va_start (var_args, first_arg_type);
1310 retval = dbus_message_get_args_valist (message, error, first_arg_type, var_args);
1317 * This function takes a va_list for use by language bindings
1319 * @todo We need to free the argument data when an error occurs.
1321 * @see dbus_message_get_args
1322 * @param message the message
1323 * @param error error to be filled in
1324 * @param first_arg_type type of the first argument
1325 * @param var_args return location for first argument, followed by list of type/location pairs
1326 * @returns #FALSE if error was set
1329 dbus_message_get_args_valist (DBusMessage *message,
1334 DBusMessageIter iter;
1336 dbus_message_iter_init (message, &iter);
1337 return dbus_message_iter_get_args_valist (&iter, error, first_arg_type, var_args);
1341 * Gets arguments from a message iterator given a variable argument list.
1342 * The variable argument list should contain the type of the
1343 * argumen followed by a pointer to where the value should be
1344 * stored. The list is terminated with 0.
1346 * @param iter the message iterator
1347 * @param error error to be filled in on failure
1348 * @param first_arg_type the first argument type
1349 * @param ... location for first argument value, then list of type-location pairs
1350 * @returns #FALSE if the error was set
1353 dbus_message_iter_get_args (DBusMessageIter *iter,
1361 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1363 va_start (var_args, first_arg_type);
1364 retval = dbus_message_iter_get_args_valist (iter, error, first_arg_type, var_args);
1371 * This function takes a va_list for use by language bindings
1373 * @todo this function (or some lower-level non-convenience function)
1374 * needs better error handling; should allow the application to
1375 * distinguish between out of memory, and bad data from the remote
1376 * app. It also needs to not leak a bunch of args when it gets
1377 * to the arg that's bad, as that would be a security hole
1378 * (allow one app to force another to leak memory)
1380 * @todo We need to free the argument data when an error occurs.
1382 * @see dbus_message_get_args
1383 * @param iter the message iter
1384 * @param error error to be filled in
1385 * @param first_arg_type type of the first argument
1386 * @param var_args return location for first argument, followed by list of type/location pairs
1387 * @returns #FALSE if error was set
1390 dbus_message_iter_get_args_valist (DBusMessageIter *iter,
1395 int spec_type, msg_type, i;
1398 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1402 spec_type = first_arg_type;
1405 while (spec_type != 0)
1407 msg_type = dbus_message_iter_get_arg_type (iter);
1409 if (msg_type != spec_type)
1411 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1412 "Argument %d is specified to be of type \"%s\", but "
1413 "is actually of type \"%s\"\n", i,
1414 _dbus_type_to_string (spec_type),
1415 _dbus_type_to_string (msg_type));
1424 case DBUS_TYPE_BYTE:
1428 ptr = va_arg (var_args, unsigned char *);
1430 *ptr = dbus_message_iter_get_byte (iter);
1433 case DBUS_TYPE_BOOLEAN:
1437 ptr = va_arg (var_args, dbus_bool_t *);
1439 *ptr = dbus_message_iter_get_boolean (iter);
1442 case DBUS_TYPE_INT32:
1446 ptr = va_arg (var_args, dbus_int32_t *);
1448 *ptr = dbus_message_iter_get_int32 (iter);
1451 case DBUS_TYPE_UINT32:
1455 ptr = va_arg (var_args, dbus_uint32_t *);
1457 *ptr = dbus_message_iter_get_uint32 (iter);
1461 case DBUS_TYPE_DOUBLE:
1465 ptr = va_arg (var_args, double *);
1467 *ptr = dbus_message_iter_get_double (iter);
1471 case DBUS_TYPE_STRING:
1475 ptr = va_arg (var_args, char **);
1477 *ptr = dbus_message_iter_get_string (iter);
1481 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1488 case DBUS_TYPE_NAMED:
1491 unsigned char **data;
1494 name = va_arg (var_args, char **);
1495 data = va_arg (var_args, unsigned char **);
1496 len = va_arg (var_args, int *);
1498 if (!dbus_message_iter_get_named (iter, name, data, len))
1500 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1505 case DBUS_TYPE_ARRAY:
1510 type = va_arg (var_args, int);
1511 data = va_arg (var_args, void *);
1512 len = va_arg (var_args, int *);
1514 if (dbus_message_iter_get_array_type (iter) != type)
1516 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1517 "Argument %d is specified to be of type \"array of %s\", but "
1518 "is actually of type \"array of %s\"\n", i,
1519 _dbus_type_to_string (type),
1520 _dbus_type_to_string (dbus_message_iter_get_array_type (iter)));
1526 case DBUS_TYPE_BYTE:
1527 if (!dbus_message_iter_get_byte_array (iter, (unsigned char **)data, len))
1529 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1533 case DBUS_TYPE_BOOLEAN:
1534 if (!dbus_message_iter_get_boolean_array (iter, (unsigned char **)data, len))
1536 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1540 case DBUS_TYPE_INT32:
1541 if (!dbus_message_iter_get_int32_array (iter, (dbus_int32_t **)data, len))
1543 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1547 case DBUS_TYPE_UINT32:
1548 if (!dbus_message_iter_get_uint32_array (iter, (dbus_uint32_t **)data, len))
1550 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1554 case DBUS_TYPE_DOUBLE:
1555 if (!dbus_message_iter_get_double_array (iter, (double **)data, len))
1557 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1561 case DBUS_TYPE_STRING:
1562 if (!dbus_message_iter_get_string_array (iter, (char ***)data, len))
1564 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1569 case DBUS_TYPE_ARRAY:
1570 case DBUS_TYPE_NAMED:
1571 case DBUS_TYPE_DICT:
1572 _dbus_warn ("dbus_message_get_args_valist doesn't support recursive arrays\n");
1573 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1576 _dbus_warn ("Unknown field type %d\n", type);
1577 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1582 case DBUS_TYPE_DICT:
1583 _dbus_warn ("dbus_message_get_args_valist doesn't support dicts\n");
1584 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1587 dbus_set_error (error, DBUS_ERROR_NOT_SUPPORTED, NULL);
1588 _dbus_warn ("Unknown field type %d\n", spec_type);
1592 spec_type = va_arg (var_args, int);
1593 if (spec_type != 0 && !dbus_message_iter_next (iter))
1595 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1596 "Message has only %d arguments, but more were expected", i);
1612 * Initializes a DBusMessageIter representing the arguments of the
1613 * message passed in.
1615 * @param message the message
1616 * @param _iter pointer to an iterator to initialize
1619 dbus_message_iter_init (DBusMessage *message,
1620 DBusMessageIter *iter)
1622 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1624 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
1626 real->message = message;
1627 real->parent_iter = NULL;
1628 real->changed_stamp = message->changed_stamp;
1630 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
1632 real->end = _dbus_string_get_length (&message->body);
1634 real->container_start = 0;
1635 real->container_length_pos = 0;
1636 real->wrote_dict_key = 0;
1637 real->array_type_pos = 0;
1641 dbus_message_iter_check (DBusMessageRealIter *iter)
1643 if (iter->changed_stamp != iter->message->changed_stamp)
1644 _dbus_warn ("dbus iterator check failed: invalid iterator\n");
1645 if (iter->pos < 0 || iter->pos > iter->end)
1646 _dbus_warn ("dbus iterator check failed: invalid position\n");
1650 skip_array_type (DBusMessageRealIter *iter, int pos)
1656 data = _dbus_string_get_const_data_len (&iter->message->body,
1659 while (*data == DBUS_TYPE_ARRAY);
1665 dbus_message_iter_get_data_start (DBusMessageRealIter *iter, int *type)
1672 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
1673 data = _dbus_string_get_const_data_len (&iter->message->body,
1675 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1678 *type = DBUS_TYPE_INVALID;
1680 return skip_array_type (iter, iter->pos);
1682 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
1683 data = _dbus_string_get_const_data_len (&iter->message->body,
1684 iter->array_type_pos, 1);
1685 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1688 *type = DBUS_TYPE_INVALID;
1692 case DBUS_MESSAGE_ITER_TYPE_DICT:
1693 /* Get the length of the string */
1694 len = _dbus_demarshal_uint32 (&iter->message->body,
1695 iter->message->byte_order,
1697 pos = pos + len + 1;
1699 data = _dbus_string_get_const_data_len (&iter->message->body,
1701 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1704 *type = DBUS_TYPE_INVALID;
1706 return skip_array_type (iter, pos);
1709 _dbus_assert_not_reached ("Invalid iter type");
1712 *type = DBUS_TYPE_INVALID;
1718 * Checks if an iterator has any more fields.
1720 * @param iter the message iter
1721 * @returns #TRUE if there are more fields
1725 dbus_message_iter_has_next (DBusMessageIter *iter)
1727 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1731 dbus_message_iter_check (real);
1733 if (real->pos >= real->end)
1736 pos = dbus_message_iter_get_data_start (real, &type);
1738 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
1739 real->message->byte_order,
1740 type, pos, &end_pos))
1743 if (end_pos >= real->end)
1750 * Moves the iterator to the next field.
1752 * @param _iter The message iter
1753 * @returns #TRUE if the iterator was moved to the next field
1756 dbus_message_iter_next (DBusMessageIter *iter)
1758 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1762 dbus_message_iter_check (real);
1764 pos = dbus_message_iter_get_data_start (real, &type);
1766 if (!_dbus_marshal_get_arg_end_pos (&real->message->body,
1767 real->message->byte_order,
1768 type, pos, &end_pos))
1771 if (end_pos >= real->end)
1774 real->pos = end_pos;
1780 * Returns the argument type of the argument that the
1781 * message iterator points at.
1783 * @param iter the message iter
1784 * @returns the field type
1787 dbus_message_iter_get_arg_type (DBusMessageIter *iter)
1789 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1792 dbus_message_iter_check (real);
1794 if (real->pos >= real->end)
1795 return DBUS_TYPE_INVALID;
1797 pos = dbus_message_iter_get_data_start (real, &type);
1803 iter_get_array_type (DBusMessageRealIter *iter, int *array_type_pos)
1806 int _array_type_pos;
1811 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
1812 _array_type_pos = iter->pos + 1;
1814 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
1815 _array_type_pos = iter->array_type_pos + 1;
1817 case DBUS_MESSAGE_ITER_TYPE_DICT:
1818 /* Get the length of the string */
1819 len = _dbus_demarshal_uint32 (&iter->message->body,
1820 iter->message->byte_order,
1822 pos = pos + len + 1;
1823 data = _dbus_string_get_const_data_len (&iter->message->body,
1825 _array_type_pos = pos + 1;
1828 _dbus_assert_not_reached ("wrong iter type");
1829 return DBUS_TYPE_INVALID;
1832 if (array_type_pos != NULL)
1833 *array_type_pos = _array_type_pos;
1835 data = _dbus_string_get_const_data_len (&iter->message->body,
1836 _array_type_pos, 1);
1837 if (*data > DBUS_TYPE_INVALID && *data <= DBUS_TYPE_LAST)
1840 return DBUS_TYPE_INVALID;
1845 * Returns the element type of the array that the
1846 * message iterator points at. Note that you need
1847 * to check that the iterator points to an array
1848 * prior to using this function.
1850 * @param iter the message iter
1851 * @returns the field type
1854 dbus_message_iter_get_array_type (DBusMessageIter *iter)
1856 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1859 dbus_message_iter_check (real);
1861 if (real->pos >= real->end)
1862 return DBUS_TYPE_INVALID;
1864 pos = dbus_message_iter_get_data_start (real, &type);
1866 _dbus_assert (type == DBUS_TYPE_ARRAY);
1868 return iter_get_array_type (real, NULL);
1873 * Returns the string value that an iterator may point to.
1874 * Note that you need to check that the iterator points to
1875 * a string value before using this function.
1877 * @see dbus_message_iter_get_arg_type
1878 * @param iter the message iter
1879 * @returns the string
1882 dbus_message_iter_get_string (DBusMessageIter *iter)
1884 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1887 dbus_message_iter_check (real);
1889 pos = dbus_message_iter_get_data_start (real, &type);
1891 _dbus_assert (type == DBUS_TYPE_STRING);
1893 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
1898 * Returns the name and data from a named type that an
1899 * iterator may point to. Note that you need to check that
1900 * the iterator points to a named type before using this
1903 * @see dbus_message_iter_get_arg_type
1904 * @param iter the message iter
1905 * @param name return location for the name
1906 * @param value return location for data
1907 * @param len return location for length of data
1908 * @returns TRUE if get succeed
1912 dbus_message_iter_get_named (DBusMessageIter *iter,
1914 unsigned char **value,
1917 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1921 dbus_message_iter_check (real);
1923 pos = dbus_message_iter_get_data_start (real, &type);
1925 _dbus_assert (type == DBUS_TYPE_NAMED);
1927 _name = _dbus_demarshal_string (&real->message->body, real->message->byte_order,
1933 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
1934 pos + 1, NULL, value, len))
1946 * Returns the byte value that an iterator may point to.
1947 * Note that you need to check that the iterator points to
1948 * a byte value before using this function.
1950 * @see dbus_message_iter_get_arg_type
1951 * @param iter the message iter
1952 * @returns the byte value
1955 dbus_message_iter_get_byte (DBusMessageIter *iter)
1957 unsigned char value;
1958 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1961 dbus_message_iter_check (real);
1963 pos = dbus_message_iter_get_data_start (real, &type);
1965 _dbus_assert (type == DBUS_TYPE_BYTE);
1967 value = _dbus_string_get_byte (&real->message->body, pos);
1974 * Returns the boolean value that an iterator may point to.
1975 * Note that you need to check that the iterator points to
1976 * a boolean value before using this function.
1978 * @see dbus_message_iter_get_arg_type
1979 * @param iter the message iter
1980 * @returns the boolean value
1983 dbus_message_iter_get_boolean (DBusMessageIter *iter)
1985 unsigned char value;
1986 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
1989 dbus_message_iter_check (real);
1991 pos = dbus_message_iter_get_data_start (real, &type);
1993 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
1995 value = _dbus_string_get_byte (&real->message->body, pos);
2001 * Returns the 32 bit signed integer value that an iterator may point to.
2002 * Note that you need to check that the iterator points to
2003 * an integer value before using this function.
2005 * @see dbus_message_iter_get_arg_type
2006 * @param iter the message iter
2007 * @returns the integer
2010 dbus_message_iter_get_int32 (DBusMessageIter *iter)
2012 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2015 dbus_message_iter_check (real);
2017 pos = dbus_message_iter_get_data_start (real, &type);
2019 _dbus_assert (type == DBUS_TYPE_INT32);
2021 return _dbus_demarshal_int32 (&real->message->body, real->message->byte_order,
2026 * Returns the 32 bit unsigned integer value that an iterator may point to.
2027 * Note that you need to check that the iterator points to
2028 * an unsigned integer value before using this function.
2030 * @see dbus_message_iter_get_arg_type
2031 * @param iter the message iter
2032 * @returns the integer
2035 dbus_message_iter_get_uint32 (DBusMessageIter *iter)
2037 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2040 dbus_message_iter_check (real);
2042 pos = dbus_message_iter_get_data_start (real, &type);
2044 _dbus_assert (type == DBUS_TYPE_UINT32);
2046 return _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2051 * Returns the double value that an iterator may point to.
2052 * Note that you need to check that the iterator points to
2053 * a string value before using this function.
2055 * @see dbus_message_iter_get_arg_type
2056 * @param iter the message iter
2057 * @returns the double
2060 dbus_message_iter_get_double (DBusMessageIter *iter)
2062 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2065 dbus_message_iter_check (real);
2067 pos = dbus_message_iter_get_data_start (real, &type);
2069 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2071 return _dbus_demarshal_double (&real->message->body, real->message->byte_order,
2076 * Initializes an iterator for the array that the iterator
2077 * may point to. Note that you need to check that the iterator
2078 * points to an array prior to using this function.
2080 * The array element type is returned in array_type, and the array
2081 * iterator can only be used to get that type of data.
2083 * @param iter the iterator
2084 * @param array_iter pointer to an iterator to initialize
2085 * @param array_type gets set to the type of the array elements
2086 * @returns #TRUE on success
2089 dbus_message_iter_init_array_iterator (DBusMessageIter *iter,
2090 DBusMessageIter *array_iter,
2093 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2094 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2095 int type, pos, len_pos, len, array_type_pos;
2098 dbus_message_iter_check (real);
2100 pos = dbus_message_iter_get_data_start (real, &type);
2102 _dbus_assert (type == DBUS_TYPE_ARRAY);
2104 _array_type = iter_get_array_type (real, &array_type_pos);
2106 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2107 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2110 array_real->parent_iter = real;
2111 array_real->message = real->message;
2112 array_real->changed_stamp = real->message->changed_stamp;
2114 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2115 array_real->pos = pos;
2116 array_real->end = pos + len;
2118 array_real->container_start = pos;
2119 array_real->container_length_pos = len_pos;
2120 array_real->wrote_dict_key = 0;
2121 array_real->array_type_pos = array_type_pos;
2122 array_real->array_type_done = TRUE;
2124 if (array_type != NULL)
2125 *array_type = _array_type;
2132 * Initializes an iterator for the dict that the iterator
2133 * may point to. Note that you need to check that the iterator
2134 * points to a dict prior to using this function.
2136 * @param iter the iterator
2137 * @param dict_iter pointer to an iterator to initialize
2138 * @returns #TRUE on success
2141 dbus_message_iter_init_dict_iterator (DBusMessageIter *iter,
2142 DBusMessageIter *dict_iter)
2144 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2145 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
2146 int type, pos, len_pos, len;
2148 dbus_message_iter_check (real);
2150 pos = dbus_message_iter_get_data_start (real, &type);
2152 _dbus_assert (type == DBUS_TYPE_DICT);
2154 len_pos = _DBUS_ALIGN_VALUE (pos, sizeof (dbus_uint32_t));
2155 len = _dbus_demarshal_uint32 (&real->message->body, real->message->byte_order,
2158 dict_real->parent_iter = real;
2159 dict_real->message = real->message;
2160 dict_real->changed_stamp = real->message->changed_stamp;
2162 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
2163 dict_real->pos = pos;
2164 dict_real->end = pos + len;
2166 dict_real->container_start = pos;
2167 dict_real->container_length_pos = len_pos;
2168 dict_real->wrote_dict_key = 0;
2174 * Returns the byte array that the iterator may point to.
2175 * Note that you need to check that the iterator points
2176 * to a byte array prior to using this function.
2178 * @param iter the iterator
2179 * @param value return location for array values
2180 * @param len return location for length of byte array
2181 * @returns #TRUE on success
2184 dbus_message_iter_get_byte_array (DBusMessageIter *iter,
2185 unsigned char **value,
2188 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2191 dbus_message_iter_check (real);
2193 pos = dbus_message_iter_get_data_start (real, &type);
2195 _dbus_assert (type == DBUS_TYPE_ARRAY);
2197 type = iter_get_array_type (real, NULL);
2199 _dbus_assert (type == DBUS_TYPE_BYTE);
2201 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2202 pos, NULL, value, len))
2209 * Returns the boolean array that the iterator may point to. Note that
2210 * you need to check that the iterator points to an array of the
2211 * correct type prior to using this function.
2213 * @param iter the iterator
2214 * @param value return location for the array
2215 * @param len return location for the array length
2216 * @returns #TRUE on success
2219 dbus_message_iter_get_boolean_array (DBusMessageIter *iter,
2220 unsigned char **value,
2223 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2226 dbus_message_iter_check (real);
2228 pos = dbus_message_iter_get_data_start (real, &type);
2230 _dbus_assert (type == DBUS_TYPE_ARRAY);
2232 type = iter_get_array_type (real, NULL);
2234 _dbus_assert (type == DBUS_TYPE_BOOLEAN);
2236 if (!_dbus_demarshal_byte_array (&real->message->body, real->message->byte_order,
2237 pos, NULL, value, len))
2244 * Returns the 32 bit signed integer array that the iterator may point
2245 * to. Note that you need to check that the iterator points to an
2246 * array of the correct type prior to using this function.
2248 * @param iter the iterator
2249 * @param value return location for the array
2250 * @param len return location for the array length
2251 * @returns #TRUE on success
2254 dbus_message_iter_get_int32_array (DBusMessageIter *iter,
2255 dbus_int32_t **value,
2258 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2261 dbus_message_iter_check (real);
2263 pos = dbus_message_iter_get_data_start (real, &type);
2265 _dbus_assert (type == DBUS_TYPE_ARRAY);
2267 type = iter_get_array_type (real, NULL);
2269 _dbus_assert (type == DBUS_TYPE_INT32);
2271 if (!_dbus_demarshal_int32_array (&real->message->body, real->message->byte_order,
2272 pos, NULL, value, len))
2279 * Returns the 32 bit unsigned integer array that the iterator may point
2280 * to. Note that you need to check that the iterator points to an
2281 * array of the correct type prior to using this function.
2283 * @param iter the iterator
2284 * @param value return location for the array
2285 * @param len return location for the array length
2286 * @returns #TRUE on success
2289 dbus_message_iter_get_uint32_array (DBusMessageIter *iter,
2290 dbus_uint32_t **value,
2293 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2296 dbus_message_iter_check (real);
2298 pos = dbus_message_iter_get_data_start (real, &type);
2300 _dbus_assert (type == DBUS_TYPE_ARRAY);
2302 type = iter_get_array_type (real, NULL);
2303 _dbus_assert (type == DBUS_TYPE_UINT32);
2305 if (!_dbus_demarshal_uint32_array (&real->message->body, real->message->byte_order,
2306 pos, NULL, value, len))
2313 * Returns the double array that the iterator may point to. Note that
2314 * you need to check that the iterator points to an array of the
2315 * correct type prior to using this function.
2317 * @param iter the iterator
2318 * @param value return location for the array
2319 * @param len return location for the array length
2320 * @returns #TRUE on success
2323 dbus_message_iter_get_double_array (DBusMessageIter *iter,
2327 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2330 dbus_message_iter_check (real);
2332 pos = dbus_message_iter_get_data_start (real, &type);
2334 _dbus_assert (type == DBUS_TYPE_ARRAY);
2336 type = iter_get_array_type (real, NULL);
2337 _dbus_assert (type == DBUS_TYPE_DOUBLE);
2339 if (!_dbus_demarshal_double_array (&real->message->body, real->message->byte_order,
2340 pos, NULL, value, len))
2347 * Returns the string array that the iterator may point to.
2348 * Note that you need to check that the iterator points
2349 * to a byte array prior to using this function.
2351 * The returned value is a #NULL-terminated array of strings.
2352 * Each string is a separate malloc block, and the array
2353 * itself is a malloc block. You can free this type of
2354 * string array with dbus_free_string_array().
2356 * @param iter the iterator
2357 * @param value return location for string values
2358 * @param len return location for length of byte array
2359 * @returns #TRUE on success
2362 dbus_message_iter_get_string_array (DBusMessageIter *iter,
2366 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2369 dbus_message_iter_check (real);
2371 pos = dbus_message_iter_get_data_start (real, &type);
2373 _dbus_assert (type == DBUS_TYPE_ARRAY);
2375 type = iter_get_array_type (real, NULL);
2376 _dbus_assert (type == DBUS_TYPE_STRING);
2378 if (!_dbus_demarshal_string_array (&real->message->body, real->message->byte_order,
2379 pos, NULL, value, len))
2386 * Returns the key name fot the dict entry that an iterator
2387 * may point to. Note that you need to check that the iterator
2388 * points to a dict entry before using this function.
2390 * @see dbus_message_iter_init_dict_iterator
2391 * @param iter the message iter
2392 * @returns the key name
2395 dbus_message_iter_get_dict_key (DBusMessageIter *iter)
2397 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2399 dbus_message_iter_check (real);
2401 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
2403 return _dbus_demarshal_string (&real->message->body, real->message->byte_order,
2408 * Initializes a DBusMessageIter pointing to the end of the
2409 * message. This iterator can be used to append data to the
2412 * @param message the message
2413 * @param _iter pointer to an iterator to initialize
2416 dbus_message_append_iter_init (DBusMessage *message,
2417 DBusMessageIter *iter)
2419 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2421 real->message = message;
2422 real->parent_iter = NULL;
2423 real->changed_stamp = message->changed_stamp;
2425 real->type = DBUS_MESSAGE_ITER_TYPE_MESSAGE;
2426 real->end = _dbus_string_get_length (&real->message->body);
2427 real->pos = real->end;
2429 real->container_length_pos = 0;
2430 real->wrote_dict_key = 0;
2434 dbus_message_iter_append_check (DBusMessageRealIter *iter)
2436 _dbus_assert (!iter->message->locked);
2438 if (iter->changed_stamp != iter->message->changed_stamp)
2439 _dbus_warn ("dbus iterator check failed: invalid iterator");
2441 if (iter->pos != iter->end)
2442 _dbus_warn ("dbus iterator check failed: can only append at end of message");
2444 if (iter->pos != _dbus_string_get_length (&iter->message->body))
2445 _dbus_warn ("dbus iterator check failed: append pos not at end of message string");
2449 dbus_message_iter_append_type (DBusMessageRealIter *iter,
2455 case DBUS_MESSAGE_ITER_TYPE_MESSAGE:
2456 if (!_dbus_string_append_byte (&iter->message->body, type))
2460 case DBUS_MESSAGE_ITER_TYPE_ARRAY:
2461 data = _dbus_string_get_const_data_len (&iter->message->body,
2462 iter->array_type_pos, 1);
2465 _dbus_warn ("Appended element of wrong type for array\n");
2470 case DBUS_MESSAGE_ITER_TYPE_DICT:
2471 if (!iter->wrote_dict_key)
2473 _dbus_warn ("Appending dict data before key name\n");
2477 if (!_dbus_string_append_byte (&iter->message->body, type))
2483 _dbus_assert_not_reached ("Invalid iter type");
2491 dbus_message_iter_update_after_change (DBusMessageRealIter *iter)
2493 iter->changed_stamp = iter->message->changed_stamp;
2495 /* Set new end of iter */
2496 iter->end = _dbus_string_get_length (&iter->message->body);
2497 iter->pos = iter->end;
2499 /* Set container length */
2500 if (iter->type == DBUS_MESSAGE_ITER_TYPE_DICT ||
2501 (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY && iter->array_type_done))
2502 _dbus_marshal_set_uint32 (&iter->message->body,
2503 iter->message->byte_order,
2504 iter->container_length_pos,
2505 iter->end - iter->container_start);
2507 if (iter->parent_iter)
2508 dbus_message_iter_update_after_change (iter->parent_iter);
2512 dbus_message_iter_append_done (DBusMessageRealIter *iter)
2514 iter->message->changed_stamp++;
2515 dbus_message_iter_update_after_change (iter);
2516 iter->wrote_dict_key = FALSE;
2520 * Appends a nil value to the message
2522 * @param iter an iterator pointing to the end of the message
2523 * @returns #TRUE on success
2526 dbus_message_iter_append_nil (DBusMessageIter *iter)
2528 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2530 dbus_message_iter_append_check (real);
2532 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NIL))
2535 dbus_message_iter_append_done (real);
2541 * Appends a boolean value to the message
2543 * @param iter an iterator pointing to the end of the message
2544 * @param value the boolean value
2545 * @returns #TRUE on success
2548 dbus_message_iter_append_boolean (DBusMessageIter *iter,
2551 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2553 dbus_message_iter_append_check (real);
2555 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BOOLEAN))
2558 if (!_dbus_string_append_byte (&real->message->body, (value != FALSE)))
2560 _dbus_string_set_length (&real->message->body, real->pos);
2564 dbus_message_iter_append_done (real);
2570 * Appends a byte to the message
2572 * @param iter an iterator pointing to the end of the message
2573 * @param value the byte value
2574 * @returns #TRUE on success
2577 dbus_message_iter_append_byte (DBusMessageIter *iter,
2578 unsigned char value)
2580 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2582 dbus_message_iter_append_check (real);
2584 if (!dbus_message_iter_append_type (real, DBUS_TYPE_BYTE))
2587 if (!_dbus_string_append_byte (&real->message->body, value))
2589 _dbus_string_set_length (&real->message->body, real->pos);
2593 dbus_message_iter_append_done (real);
2600 * Appends a 32 bit signed integer to the message.
2602 * @param iter an iterator pointing to the end of the message
2603 * @param value the integer value
2604 * @returns #TRUE on success
2607 dbus_message_iter_append_int32 (DBusMessageIter *iter,
2610 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2612 dbus_message_iter_append_check (real);
2614 if (!dbus_message_iter_append_type (real, DBUS_TYPE_INT32))
2617 if (!_dbus_marshal_int32 (&real->message->body, real->message->byte_order, value))
2619 _dbus_string_set_length (&real->message->body, real->pos);
2623 dbus_message_iter_append_done (real);
2629 * Appends a 32 bit unsigned integer to the message.
2631 * @param iter an iterator pointing to the end of the message
2632 * @param value the integer value
2633 * @returns #TRUE on success
2636 dbus_message_iter_append_uint32 (DBusMessageIter *iter,
2637 dbus_uint32_t value)
2639 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2641 dbus_message_iter_append_check (real);
2643 if (!dbus_message_iter_append_type (real, DBUS_TYPE_UINT32))
2646 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, value))
2648 _dbus_string_set_length (&real->message->body, real->pos);
2652 dbus_message_iter_append_done (real);
2658 * Appends a double value to the message.
2660 * @param iter an iterator pointing to the end of the message
2661 * @param value the double value
2662 * @returns #TRUE on success
2665 dbus_message_iter_append_double (DBusMessageIter *iter,
2668 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2670 dbus_message_iter_append_check (real);
2672 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DOUBLE))
2675 if (!_dbus_marshal_double (&real->message->body, real->message->byte_order, value))
2677 _dbus_string_set_length (&real->message->body, real->pos);
2681 dbus_message_iter_append_done (real);
2687 * Appends a UTF-8 string to the message.
2689 * @param iter an iterator pointing to the end of the message
2690 * @param value the string
2691 * @returns #TRUE on success
2694 dbus_message_iter_append_string (DBusMessageIter *iter,
2697 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2699 dbus_message_iter_append_check (real);
2701 if (!dbus_message_iter_append_type (real, DBUS_TYPE_STRING))
2704 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
2706 _dbus_string_set_length (&real->message->body, real->pos);
2710 dbus_message_iter_append_done (real);
2716 * Appends a named type data chunk to the message.
2718 * @param iter an iterator pointing to the end of the message
2719 * @param name the name of the type
2721 * @returns #TRUE on success
2724 dbus_message_iter_append_named (DBusMessageIter *iter,
2726 const unsigned char *data,
2729 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2731 dbus_message_iter_append_check (real);
2733 if (!dbus_message_iter_append_type (real, DBUS_TYPE_NAMED))
2736 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, name))
2738 _dbus_string_set_length (&real->message->body, real->pos);
2742 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, data, len))
2744 _dbus_string_set_length (&real->message->body, real->pos);
2748 dbus_message_iter_append_done (real);
2755 * Appends a dict key name to the message. The iterator used
2756 * must point to a dict.
2758 * @param iter an iterator pointing to the end of the message
2759 * @param value the string
2760 * @returns #TRUE on success
2763 dbus_message_iter_append_dict_key (DBusMessageIter *iter,
2766 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2768 dbus_message_iter_append_check (real);
2769 _dbus_assert (real->type == DBUS_MESSAGE_ITER_TYPE_DICT);
2771 if (real->wrote_dict_key)
2773 _dbus_warn ("Appendinging multiple dict key names\n");
2777 if (!_dbus_marshal_string (&real->message->body, real->message->byte_order, value))
2782 dbus_message_iter_append_done (real);
2783 real->wrote_dict_key = TRUE;
2789 array_iter_type_mark_done (DBusMessageRealIter *iter)
2793 if (iter->type == DBUS_MESSAGE_ITER_TYPE_ARRAY)
2794 array_iter_type_mark_done (iter->parent_iter);
2798 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&iter->message->body),
2799 sizeof (dbus_uint32_t));
2801 /* Empty length for now, backfill later */
2802 if (!_dbus_marshal_uint32 (&iter->message->body, iter->message->byte_order, 0))
2804 _dbus_string_set_length (&iter->message->body, iter->pos);
2808 iter->container_start = _dbus_string_get_length (&iter->message->body);
2809 iter->container_length_pos = len_pos;
2810 iter->array_type_done = TRUE;
2816 append_array_type (DBusMessageRealIter *real,
2818 dbus_bool_t *array_type_done,
2819 int *array_type_pos)
2821 int existing_element_type;
2823 if (!dbus_message_iter_append_type (real, DBUS_TYPE_ARRAY))
2826 if (real->type == DBUS_MESSAGE_ITER_TYPE_ARRAY &&
2827 real->array_type_done)
2829 existing_element_type = iter_get_array_type (real, array_type_pos);
2830 if (existing_element_type != element_type)
2832 _dbus_warn ("Appending array of %d, when expecting array of %d\n",
2833 element_type, existing_element_type);
2834 _dbus_string_set_length (&real->message->body, real->pos);
2837 if (array_type_done != NULL)
2838 *array_type_done = TRUE;
2842 if (array_type_pos != NULL)
2843 *array_type_pos = _dbus_string_get_length (&real->message->body);
2845 /* Append element type */
2846 if (!_dbus_string_append_byte (&real->message->body, element_type))
2848 _dbus_string_set_length (&real->message->body, real->pos);
2852 if (array_type_done != NULL)
2853 *array_type_done = element_type != DBUS_TYPE_ARRAY;
2855 if (element_type != DBUS_TYPE_ARRAY &&
2856 !array_iter_type_mark_done (real))
2864 * Appends an array to the message and initializes an iterator that
2865 * can be used to append to the array.
2867 * @param iter an iterator pointing to the end of the message
2868 * @param array_iter pointer to an iter that will be initialized
2869 * @param element_type the type of the array elements
2870 * @returns #TRUE on success
2873 dbus_message_iter_append_array (DBusMessageIter *iter,
2874 DBusMessageIter *array_iter,
2877 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2878 DBusMessageRealIter *array_real = (DBusMessageRealIter *)array_iter;
2881 dbus_bool_t array_type_done;
2883 if (element_type == DBUS_TYPE_NIL)
2885 _dbus_warn ("Can't create NIL arrays\n");
2889 dbus_message_iter_append_check (real);
2891 if (!append_array_type (real, element_type, &array_type_done, &array_type_pos))
2894 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
2896 if (array_type_done)
2898 /* Empty length for now, backfill later */
2899 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
2901 _dbus_string_set_length (&real->message->body, real->pos);
2906 array_real->parent_iter = real;
2907 array_real->message = real->message;
2908 array_real->changed_stamp = real->message->changed_stamp;
2910 array_real->type = DBUS_MESSAGE_ITER_TYPE_ARRAY;
2911 array_real->pos = _dbus_string_get_length (&real->message->body);
2912 array_real->end = array_real->end;
2914 array_real->container_start = array_real->pos;
2915 array_real->container_length_pos = len_pos;
2916 array_real->wrote_dict_key = 0;
2917 array_real->array_type_done = array_type_done;
2918 array_real->array_type_pos = array_type_pos;
2920 dbus_message_iter_append_done (array_real);
2926 * Appends a dict to the message and initializes an iterator that
2927 * can be used to append to the dict.
2929 * @param iter an iterator pointing to the end of the message
2930 * @param array_iter pointer to an iter that will be initialized
2931 * @param element_type the type of the array elements
2932 * @returns #TRUE on success
2935 dbus_message_iter_append_dict (DBusMessageIter *iter,
2936 DBusMessageIter *dict_iter)
2938 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2939 DBusMessageRealIter *dict_real = (DBusMessageRealIter *)dict_iter;
2942 dbus_message_iter_append_check (real);
2944 if (!dbus_message_iter_append_type (real, DBUS_TYPE_DICT))
2947 len_pos = _DBUS_ALIGN_VALUE (_dbus_string_get_length (&real->message->body), sizeof (dbus_uint32_t));
2949 /* Empty length for now, backfill later */
2950 if (!_dbus_marshal_uint32 (&real->message->body, real->message->byte_order, 0))
2952 _dbus_string_set_length (&real->message->body, real->pos);
2956 dict_real->parent_iter = real;
2957 dict_real->message = real->message;
2958 dict_real->changed_stamp = real->message->changed_stamp;
2960 dict_real->type = DBUS_MESSAGE_ITER_TYPE_DICT;
2961 dict_real->pos = _dbus_string_get_length (&real->message->body);
2962 dict_real->end = dict_real->end;
2964 dict_real->container_start = dict_real->pos;
2965 dict_real->container_length_pos = len_pos;
2966 dict_real->wrote_dict_key = 0;
2968 dbus_message_iter_append_done (dict_real);
2975 * Appends a boolean array to the message.
2977 * @param iter an iterator pointing to the end of the message
2978 * @param value the array
2979 * @param len the length of the array
2980 * @returns #TRUE on success
2983 dbus_message_iter_append_boolean_array (DBusMessageIter *iter,
2984 unsigned const char *value,
2987 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
2989 dbus_message_iter_append_check (real);
2991 if (!append_array_type (real, DBUS_TYPE_BOOLEAN, NULL, NULL))
2994 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
2996 _dbus_string_set_length (&real->message->body, real->pos);
3000 dbus_message_iter_append_done (real);
3006 * Appends a 32 bit signed integer array to the message.
3008 * @param iter an iterator pointing to the end of the message
3009 * @param value the array
3010 * @param len the length of the array
3011 * @returns #TRUE on success
3014 dbus_message_iter_append_int32_array (DBusMessageIter *iter,
3015 const dbus_int32_t *value,
3018 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3020 dbus_message_iter_append_check (real);
3022 if (!append_array_type (real, DBUS_TYPE_INT32, NULL, NULL))
3025 if (!_dbus_marshal_int32_array (&real->message->body, real->message->byte_order, value, len))
3027 _dbus_string_set_length (&real->message->body, real->pos);
3031 dbus_message_iter_append_done (real);
3037 * Appends a 32 bit unsigned integer array to the message.
3039 * @param iter an iterator pointing to the end of the message
3040 * @param value the array
3041 * @param len the length of the array
3042 * @returns #TRUE on success
3045 dbus_message_iter_append_uint32_array (DBusMessageIter *iter,
3046 const dbus_uint32_t *value,
3049 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3051 dbus_message_iter_append_check (real);
3053 if (!append_array_type (real, DBUS_TYPE_UINT32, NULL, NULL))
3056 if (!_dbus_marshal_uint32_array (&real->message->body, real->message->byte_order, value, len))
3058 _dbus_string_set_length (&real->message->body, real->pos);
3062 dbus_message_iter_append_done (real);
3068 * Appends a double array to the message.
3070 * @param iter an iterator pointing to the end of the message
3071 * @param value the array
3072 * @param len the length of the array
3073 * @returns #TRUE on success
3076 dbus_message_iter_append_double_array (DBusMessageIter *iter,
3077 const double *value,
3080 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3082 dbus_message_iter_append_check (real);
3084 if (!append_array_type (real, DBUS_TYPE_DOUBLE, NULL, NULL))
3087 if (!_dbus_marshal_double_array (&real->message->body, real->message->byte_order, value, len))
3089 _dbus_string_set_length (&real->message->body, real->pos);
3093 dbus_message_iter_append_done (real);
3099 * Appends a byte array to the message.
3101 * @param iter an iterator pointing to the end of the message
3102 * @param value the array
3103 * @param len the length of the array
3104 * @returns #TRUE on success
3107 dbus_message_iter_append_byte_array (DBusMessageIter *iter,
3108 unsigned const char *value,
3111 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3113 dbus_message_iter_append_check (real);
3115 if (!append_array_type (real, DBUS_TYPE_BYTE, NULL, NULL))
3118 if (!_dbus_marshal_byte_array (&real->message->body, real->message->byte_order, value, len))
3120 _dbus_string_set_length (&real->message->body, real->pos);
3124 dbus_message_iter_append_done (real);
3130 * Appends a string array to the message.
3132 * @param iter an iterator pointing to the end of the message
3133 * @param value the array
3134 * @param len the length of the array
3135 * @returns #TRUE on success
3138 dbus_message_iter_append_string_array (DBusMessageIter *iter,
3142 DBusMessageRealIter *real = (DBusMessageRealIter *)iter;
3144 dbus_message_iter_append_check (real);
3146 if (!append_array_type (real, DBUS_TYPE_STRING, NULL, NULL))
3149 if (!_dbus_marshal_string_array (&real->message->body, real->message->byte_order, value, len))
3151 _dbus_string_set_length (&real->message->body, real->pos);
3155 dbus_message_iter_append_done (real);
3161 * Sets the message sender.
3163 * @param message the message
3164 * @param sender the sender
3165 * @returns #FALSE if not enough memory
3168 dbus_message_set_sender (DBusMessage *message,
3171 _dbus_assert (!message->locked);
3175 delete_string_field (message, FIELD_SENDER);
3180 return set_string_field (message,
3187 * Sets a flag indicating that the message is an error reply
3188 * message, i.e. an "exception" rather than a normal response.
3190 * @param message the message
3191 * @param is_error_reply #TRUE if this is an error message.
3194 dbus_message_set_is_error (DBusMessage *message,
3195 dbus_bool_t is_error_reply)
3199 _dbus_assert (!message->locked);
3201 header = _dbus_string_get_data_len (&message->header, 1, 1);
3204 *header |= DBUS_HEADER_FLAG_ERROR;
3206 *header &= ~DBUS_HEADER_FLAG_ERROR;
3210 * Returns #TRUE if the message is an error
3211 * reply to some previous message we sent.
3213 * @param message the message
3214 * @returns #TRUE if the message is an error
3217 dbus_message_get_is_error (DBusMessage *message)
3221 header = _dbus_string_get_const_data_len (&message->header, 1, 1);
3223 return (*header & DBUS_HEADER_FLAG_ERROR) != 0;
3227 * Gets the service which originated this message,
3228 * or #NULL if unknown or inapplicable.
3230 * @param message the message
3231 * @returns the service name or #NULL
3234 dbus_message_get_sender (DBusMessage *message)
3236 return get_string_field (message, FIELD_SENDER, NULL);
3240 * Checks whether the message has the given name.
3241 * If the message has no name or has a different
3242 * name, returns #FALSE.
3244 * @param message the message
3245 * @param name the name to check (must not be #NULL)
3247 * @returns #TRUE if the message has the given name
3250 dbus_message_name_is (DBusMessage *message,
3255 _dbus_assert (name != NULL);
3257 n = dbus_message_get_name (message);
3259 if (n && strcmp (n, name) == 0)
3266 * Checks whether the message was sent to the given service. If the
3267 * message has no service specified or has a different name, returns
3270 * @param message the message
3271 * @param service the service to check (must not be #NULL)
3273 * @returns #TRUE if the message has the given destination service
3276 dbus_message_service_is (DBusMessage *message,
3277 const char *service)
3281 _dbus_assert (service != NULL);
3283 s = dbus_message_get_service (message);
3285 if (s && strcmp (s, service) == 0)
3292 * Checks whether the message has the given service as its sender. If
3293 * the message has no sender specified or has a different sender,
3294 * returns #FALSE. Note that if a peer application owns multiple
3295 * services, its messages will have only one of those services as the
3296 * sender (usually the base service). So you can't use this
3297 * function to prove the sender didn't own service Foo, you can
3298 * only use it to prove that it did.
3300 * @param message the message
3301 * @param service the service to check (must not be #NULL)
3303 * @returns #TRUE if the message has the given origin service
3306 dbus_message_sender_is (DBusMessage *message,
3307 const char *service)
3311 _dbus_assert (service != NULL);
3313 s = dbus_message_get_sender (message);
3315 if (s && strcmp (s, service) == 0)
3322 * Sets a #DBusError based on the contents of the given
3323 * message. The error is only set if the message
3324 * is an error message, as in dbus_message_get_is_error().
3325 * The name of the error is set to the name of the message,
3326 * and the error message is set to the first argument
3327 * if the argument exists and is a string.
3329 * The return value indicates whether the error was set (the error is
3330 * set if and only if the message is an error message).
3331 * So you can check for an error reply and convert it to DBusError
3334 * @param error the error to set
3335 * @param message the message to set it from
3336 * @returns #TRUE if dbus_message_get_is_error() returns #TRUE for the message
3339 dbus_set_error_from_message (DBusError *error,
3340 DBusMessage *message)
3344 if (!dbus_message_get_is_error (message))
3348 dbus_message_get_args (message, NULL,
3349 DBUS_TYPE_STRING, &str,
3352 dbus_set_error (error, dbus_message_get_name (message),
3353 str ? "%s" : NULL, str);
3363 * @addtogroup DBusMessageInternals
3368 * @typedef DBusMessageLoader
3370 * The DBusMessageLoader object encapsulates the process of converting
3371 * a byte stream into a series of DBusMessage. It buffers the incoming
3372 * bytes as efficiently as possible, and generates a queue of
3373 * messages. DBusMessageLoader is typically used as part of a
3374 * DBusTransport implementation. The DBusTransport then hands off
3375 * the loaded messages to a DBusConnection, making the messages
3376 * visible to the application.
3378 * @todo write tests for break-loader that a) randomly delete header
3379 * fields and b) set string fields to zero-length and other funky
3384 /* we definitely use signed ints for sizes, so don't exceed
3385 * _DBUS_INT_MAX; and add 16 for paranoia, since a message
3386 * over 128M is pretty nuts anyhow.
3390 * The maximum sane message size.
3392 #define MAX_SANE_MESSAGE_SIZE (_DBUS_INT_MAX/16)
3395 * Implementation details of DBusMessageLoader.
3396 * All members are private.
3398 struct DBusMessageLoader
3400 int refcount; /**< Reference count. */
3402 DBusString data; /**< Buffered data */
3404 DBusList *messages; /**< Complete messages. */
3406 long max_message_size; /**< Maximum size of a message */
3408 unsigned int buffer_outstanding : 1; /**< Someone is using the buffer to read */
3410 unsigned int corrupted : 1; /**< We got broken data, and are no longer working */
3414 * The initial buffer size of the message loader.
3416 * @todo this should be based on min header size plus some average
3417 * body size, or something. Or rather, the min header size only, if we
3418 * want to try to read only the header, store that in a DBusMessage,
3419 * then read only the body and store that, etc., depends on
3420 * how we optimize _dbus_message_loader_get_buffer() and what
3421 * the exact message format is.
3423 #define INITIAL_LOADER_DATA_LEN 32
3426 * Creates a new message loader. Returns #NULL if memory can't
3429 * @returns new loader, or #NULL.
3432 _dbus_message_loader_new (void)
3434 DBusMessageLoader *loader;
3436 loader = dbus_new0 (DBusMessageLoader, 1);
3440 loader->refcount = 1;
3442 /* Try to cap message size at something that won't *totally* hose
3443 * the system if we have a couple of them.
3445 loader->max_message_size = _DBUS_ONE_MEGABYTE * 32;
3447 if (!_dbus_string_init (&loader->data))
3453 /* preallocate the buffer for speed, ignore failure */
3454 _dbus_string_set_length (&loader->data, INITIAL_LOADER_DATA_LEN);
3455 _dbus_string_set_length (&loader->data, 0);
3461 * Increments the reference count of the loader.
3463 * @param loader the loader.
3466 _dbus_message_loader_ref (DBusMessageLoader *loader)
3468 loader->refcount += 1;
3472 * Decrements the reference count of the loader and finalizes the
3473 * loader when the count reaches zero.
3475 * @param loader the loader.
3478 _dbus_message_loader_unref (DBusMessageLoader *loader)
3480 loader->refcount -= 1;
3481 if (loader->refcount == 0)
3483 _dbus_list_foreach (&loader->messages,
3484 (DBusForeachFunction) dbus_message_unref,
3486 _dbus_list_clear (&loader->messages);
3487 _dbus_string_free (&loader->data);
3493 * Gets the buffer to use for reading data from the network. Network
3494 * data is read directly into an allocated buffer, which is then used
3495 * in the DBusMessage, to avoid as many extra memcpy's as possible.
3496 * The buffer must always be returned immediately using
3497 * _dbus_message_loader_return_buffer(), even if no bytes are
3498 * successfully read.
3500 * @todo this function can be a lot more clever. For example
3501 * it can probably always return a buffer size to read exactly
3502 * the body of the next message, thus avoiding any memory wastage
3505 * @todo we need to enforce a max length on strings in header fields.
3507 * @param loader the message loader.
3508 * @param buffer the buffer
3511 _dbus_message_loader_get_buffer (DBusMessageLoader *loader,
3512 DBusString **buffer)
3514 _dbus_assert (!loader->buffer_outstanding);
3516 *buffer = &loader->data;
3518 loader->buffer_outstanding = TRUE;
3522 * The smallest header size that can occur.
3523 * (It won't be valid)
3525 #define DBUS_MINIMUM_HEADER_SIZE 16
3527 /** Pack four characters as in "abcd" into a uint32 */
3528 #define FOUR_CHARS_TO_UINT32(a, b, c, d) \
3529 ((((dbus_uint32_t)a) << 24) | \
3530 (((dbus_uint32_t)b) << 16) | \
3531 (((dbus_uint32_t)c) << 8) | \
3534 /** DBUS_HEADER_FIELD_NAME packed into a dbus_uint32_t */
3535 #define DBUS_HEADER_FIELD_NAME_AS_UINT32 \
3536 FOUR_CHARS_TO_UINT32 ('n', 'a', 'm', 'e')
3538 /** DBUS_HEADER_FIELD_SERVICE packed into a dbus_uint32_t */
3539 #define DBUS_HEADER_FIELD_SERVICE_AS_UINT32 \
3540 FOUR_CHARS_TO_UINT32 ('s', 'r', 'v', 'c')
3542 /** DBUS_HEADER_FIELD_REPLY packed into a dbus_uint32_t */
3543 #define DBUS_HEADER_FIELD_REPLY_AS_UINT32 \
3544 FOUR_CHARS_TO_UINT32 ('r', 'p', 'l', 'y')
3546 /** DBUS_HEADER_FIELD_SENDER Packed into a dbus_uint32_t */
3547 #define DBUS_HEADER_FIELD_SENDER_AS_UINT32 \
3548 FOUR_CHARS_TO_UINT32 ('s', 'n', 'd', 'r')
3550 /* FIXME impose max length on name, srvc, sndr */
3552 decode_header_data (const DBusString *data,
3555 HeaderField fields[FIELD_LAST],
3556 int *message_padding)
3563 if (header_len < 16)
3567 while (i < FIELD_LAST)
3569 fields[i].offset = -1;
3573 fields[FIELD_HEADER_LENGTH].offset = 4;
3574 fields[FIELD_BODY_LENGTH].offset = 8;
3575 fields[FIELD_CLIENT_SERIAL].offset = 12;
3577 /* Now handle the named fields. A real named field is at least 4
3578 * bytes for the name, plus a type code (1 byte) plus padding. So
3579 * if we have less than 8 bytes left, it must be alignment padding,
3580 * not a field. While >= 8 bytes can't be entirely alignment
3584 while ((pos + 7) < header_len)
3586 pos = _DBUS_ALIGN_VALUE (pos, 4);
3588 if ((pos + 4) > header_len)
3591 field =_dbus_string_get_const_data_len (data, pos, 4);
3594 _dbus_assert (_DBUS_ALIGN_ADDRESS (field, 4) == field);
3596 switch (DBUS_UINT32_FROM_BE (*(int*)field))
3598 case DBUS_HEADER_FIELD_SERVICE_AS_UINT32:
3599 if (fields[FIELD_SERVICE].offset >= 0)
3601 _dbus_verbose ("%s field provided twice\n",
3602 DBUS_HEADER_FIELD_SERVICE);
3606 fields[FIELD_SERVICE].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3608 _dbus_verbose ("Found service name at offset %d\n",
3609 fields[FIELD_SERVICE].offset);
3613 case DBUS_HEADER_FIELD_NAME_AS_UINT32:
3614 if (fields[FIELD_NAME].offset >= 0)
3616 _dbus_verbose ("%s field provided twice\n",
3617 DBUS_HEADER_FIELD_NAME);
3621 fields[FIELD_NAME].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3624 _dbus_verbose ("Found message name at offset %d\n",
3625 fields[FIELD_NAME].offset);
3628 case DBUS_HEADER_FIELD_SENDER_AS_UINT32:
3629 if (fields[FIELD_SENDER].offset >= 0)
3631 _dbus_verbose ("%s field provided twice\n",
3632 DBUS_HEADER_FIELD_SENDER);
3636 fields[FIELD_SENDER].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3638 _dbus_verbose ("Found sender name at offset %d\n",
3639 fields[FIELD_NAME].offset);
3642 case DBUS_HEADER_FIELD_REPLY_AS_UINT32:
3643 if (fields[FIELD_REPLY_SERIAL].offset >= 0)
3645 _dbus_verbose ("%s field provided twice\n",
3646 DBUS_HEADER_FIELD_REPLY);
3650 fields[FIELD_REPLY_SERIAL].offset = _DBUS_ALIGN_VALUE (pos + 1, 4);
3652 _dbus_verbose ("Found reply serial at offset %d\n",
3653 fields[FIELD_REPLY_SERIAL].offset);
3657 _dbus_verbose ("Ignoring an unknown header field: %c%c%c%c at offset %d\n",
3658 field[0], field[1], field[2], field[3], pos);
3661 if (!_dbus_marshal_validate_type (data, pos, &type, &pos))
3663 _dbus_verbose ("Failed to validate type of named header field\n");
3667 if (!_dbus_marshal_validate_arg (data, byte_order, 0, type, -1, pos, &new_pos))
3669 _dbus_verbose ("Failed to validate argument to named header field\n");
3673 if (new_pos > header_len)
3675 _dbus_verbose ("Named header field tries to extend beyond header length\n");
3682 if (pos < header_len)
3684 /* Alignment padding, verify that it's nul */
3685 _dbus_assert ((header_len - pos) < 8);
3687 if (!_dbus_string_validate_nul (data,
3688 pos, (header_len - pos)))
3690 _dbus_verbose ("header alignment padding is not nul\n");
3695 if (fields[FIELD_NAME].offset < 0)
3697 _dbus_verbose ("No %s field provided\n",
3698 DBUS_HEADER_FIELD_NAME);
3702 if (message_padding)
3703 *message_padding = header_len - pos;
3709 * Returns a buffer obtained from _dbus_message_loader_get_buffer(),
3710 * indicating to the loader how many bytes of the buffer were filled
3711 * in. This function must always be called, even if no bytes were
3712 * successfully read.
3714 * @param loader the loader.
3715 * @param buffer the buffer.
3716 * @param bytes_read number of bytes that were read into the buffer.
3719 _dbus_message_loader_return_buffer (DBusMessageLoader *loader,
3723 _dbus_assert (loader->buffer_outstanding);
3724 _dbus_assert (buffer == &loader->data);
3726 loader->buffer_outstanding = FALSE;
3730 * Converts buffered data into messages.
3732 * @param loader the loader.
3733 * @returns #TRUE if we had enough memory to finish.
3736 _dbus_message_loader_queue_messages (DBusMessageLoader *loader)
3738 if (loader->corrupted)
3741 while (_dbus_string_get_length (&loader->data) >= 16)
3743 DBusMessage *message;
3744 const char *header_data;
3745 int byte_order, header_len, body_len, header_padding;
3746 dbus_uint32_t header_len_unsigned, body_len_unsigned;
3748 header_data = _dbus_string_get_const_data_len (&loader->data, 0, 16);
3750 _dbus_assert (_DBUS_ALIGN_ADDRESS (header_data, 4) == header_data);
3752 if (header_data[2] != DBUS_MAJOR_PROTOCOL_VERSION)
3754 _dbus_verbose ("Message has protocol version %d ours is %d\n",
3755 (int) header_data[2], DBUS_MAJOR_PROTOCOL_VERSION);
3756 loader->corrupted = TRUE;
3760 byte_order = header_data[0];
3762 if (byte_order != DBUS_LITTLE_ENDIAN &&
3763 byte_order != DBUS_BIG_ENDIAN)
3765 _dbus_verbose ("Message with bad byte order '%c' received\n",
3767 loader->corrupted = TRUE;
3771 header_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 4);
3772 body_len_unsigned = _dbus_unpack_uint32 (byte_order, header_data + 8);
3774 if (header_len_unsigned < 16)
3776 _dbus_verbose ("Message had broken too-small header length %u\n",
3777 header_len_unsigned);
3778 loader->corrupted = TRUE;
3782 if (header_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE ||
3783 body_len_unsigned > (unsigned) MAX_SANE_MESSAGE_SIZE)
3785 _dbus_verbose ("Header or body length too large (%u %u)\n",
3786 header_len_unsigned,
3788 loader->corrupted = TRUE;
3792 /* Now that we know the values are in signed range, get
3793 * rid of stupid unsigned, just causes bugs
3795 header_len = header_len_unsigned;
3796 body_len = body_len_unsigned;
3798 if (_DBUS_ALIGN_VALUE (header_len, 8) != header_len_unsigned)
3801 _dbus_verbose ("header length %d is not aligned to 8 bytes\n",
3803 loader->corrupted = TRUE;
3807 if (header_len + body_len > loader->max_message_size)
3809 _dbus_verbose ("Message claimed length header = %d body = %d exceeds max message length %ld\n",
3810 header_len, body_len, loader->max_message_size);
3811 loader->corrupted = TRUE;
3815 if (_dbus_string_get_length (&loader->data) >= (header_len + body_len))
3817 HeaderField fields[FIELD_LAST];
3822 _dbus_verbose_bytes_of_string (&loader->data, 0, header_len + body_len);
3824 if (!decode_header_data (&loader->data, header_len, byte_order,
3825 fields, &header_padding))
3827 _dbus_verbose ("Header was invalid\n");
3828 loader->corrupted = TRUE;
3832 next_arg = header_len;
3833 while (next_arg < (header_len + body_len))
3836 int prev = next_arg;
3838 if (!_dbus_marshal_validate_type (&loader->data, next_arg,
3841 _dbus_verbose ("invalid typecode at offset %d\n", prev);
3842 loader->corrupted = TRUE;
3846 if (!_dbus_marshal_validate_arg (&loader->data,
3853 _dbus_verbose ("invalid type data at %d, next_arg\n", next_arg);
3854 loader->corrupted = TRUE;
3858 _dbus_assert (next_arg > prev);
3861 if (next_arg > (header_len + body_len))
3863 _dbus_verbose ("end of last arg at %d but message has len %d+%d=%d\n",
3864 next_arg, header_len, body_len,
3865 header_len + body_len);
3866 loader->corrupted = TRUE;
3870 message = dbus_message_new_empty_header ();
3871 if (message == NULL)
3873 _dbus_verbose ("Failed to allocate empty message\n");
3877 message->byte_order = byte_order;
3878 message->header_padding = header_padding;
3880 /* Copy in the offsets we found */
3882 while (i < FIELD_LAST)
3884 message->header_fields[i] = fields[i];
3888 if (!_dbus_list_append (&loader->messages, message))
3890 _dbus_verbose ("Failed to append new message to loader queue\n");
3891 dbus_message_unref (message);
3895 _dbus_assert (_dbus_string_get_length (&message->header) == 0);
3896 _dbus_assert (_dbus_string_get_length (&message->body) == 0);
3898 _dbus_assert (_dbus_string_get_length (&loader->data) >=
3899 (header_len + body_len));
3901 if (!_dbus_string_move_len (&loader->data, 0, header_len, &message->header, 0))
3903 _dbus_verbose ("Failed to move header into new message\n");
3904 _dbus_list_remove_last (&loader->messages, message);
3905 dbus_message_unref (message);
3909 if (!_dbus_string_move_len (&loader->data, 0, body_len, &message->body, 0))
3913 _dbus_verbose ("Failed to move body into new message\n");
3915 /* put the header back, we'll try again later */
3916 result = _dbus_string_copy_len (&message->header, 0, header_len,
3918 _dbus_assert (result); /* because DBusString never reallocs smaller */
3920 _dbus_list_remove_last (&loader->messages, message);
3921 dbus_message_unref (message);
3925 _dbus_assert (_dbus_string_get_length (&message->header) == header_len);
3926 _dbus_assert (_dbus_string_get_length (&message->body) == body_len);
3928 /* Fill in caches */
3929 message->reply_serial = get_int_field (message,
3930 FIELD_REPLY_SERIAL);
3931 message->client_serial = get_int_field (message,
3932 FIELD_CLIENT_SERIAL);
3934 _dbus_verbose ("Loaded message %p\n", message);
3944 * Peeks at first loaded message, returns #NULL if no messages have
3947 * @param loader the loader.
3948 * @returns the next message, or #NULL if none.
3951 _dbus_message_loader_peek_message (DBusMessageLoader *loader)
3953 if (loader->messages)
3954 return loader->messages->data;
3960 * Pops a loaded message (passing ownership of the message
3961 * to the caller). Returns #NULL if no messages have been
3964 * @param loader the loader.
3965 * @returns the next message, or #NULL if none.
3968 _dbus_message_loader_pop_message (DBusMessageLoader *loader)
3970 return _dbus_list_pop_first (&loader->messages);
3974 * Pops a loaded message inside a list link (passing ownership of the
3975 * message and link to the caller). Returns #NULL if no messages have
3978 * @param loader the loader.
3979 * @returns the next message link, or #NULL if none.
3982 _dbus_message_loader_pop_message_link (DBusMessageLoader *loader)
3984 return _dbus_list_pop_first_link (&loader->messages);
3988 * Returns a popped message link, used to undo a pop.
3990 * @param loader the loader
3991 * @param link the link with a message in it
3994 _dbus_message_loader_putback_message_link (DBusMessageLoader *loader,
3997 _dbus_list_prepend_link (&loader->messages, link);
4001 * Checks whether the loader is confused due to bad data.
4002 * If messages are received that are invalid, the
4003 * loader gets confused and gives up permanently.
4004 * This state is called "corrupted."
4006 * @param loader the loader
4007 * @returns #TRUE if the loader is hosed.
4010 _dbus_message_loader_get_is_corrupted (DBusMessageLoader *loader)
4012 return loader->corrupted;
4016 * Sets the maximum size message we allow.
4018 * @param loader the loader
4019 * @param size the max message size in bytes
4022 _dbus_message_loader_set_max_message_size (DBusMessageLoader *loader,
4025 if (size > MAX_SANE_MESSAGE_SIZE)
4027 _dbus_verbose ("clamping requested max message size %ld to %d\n",
4028 size, MAX_SANE_MESSAGE_SIZE);
4029 size = MAX_SANE_MESSAGE_SIZE;
4031 loader->max_message_size = size;
4035 * Gets the maximum allowed message size in bytes.
4037 * @param loader the loader
4038 * @returns max size in bytes
4041 _dbus_message_loader_get_max_message_size (DBusMessageLoader *loader)
4043 return loader->max_message_size;
4047 #ifdef DBUS_BUILD_TESTS
4048 #include "dbus-test.h"
4052 message_iter_test (DBusMessage *message)
4054 DBusMessageIter iter, dict, array, array2;
4056 unsigned char *data;
4057 dbus_int32_t *our_int_array;
4060 dbus_message_iter_init (message, &iter);
4063 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_STRING)
4064 _dbus_assert_not_reached ("Argument type isn't string");
4066 str = dbus_message_iter_get_string (&iter);
4067 if (strcmp (str, "Test string") != 0)
4068 _dbus_assert_not_reached ("Strings differ");
4071 if (!dbus_message_iter_next (&iter))
4072 _dbus_assert_not_reached ("Reached end of arguments");
4074 /* Signed integer tests */
4075 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_INT32)
4076 _dbus_assert_not_reached ("Argument type isn't int32");
4078 if (dbus_message_iter_get_int32 (&iter) != -0x12345678)
4079 _dbus_assert_not_reached ("Signed integers differ");
4081 if (!dbus_message_iter_next (&iter))
4082 _dbus_assert_not_reached ("Reached end of fields");
4084 /* Unsigned integer tests */
4085 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
4086 _dbus_assert_not_reached ("Argument type isn't int32");
4088 if (dbus_message_iter_get_uint32 (&iter) != 0xedd1e)
4089 _dbus_assert_not_reached ("Unsigned integers differ");
4091 if (!dbus_message_iter_next (&iter))
4092 _dbus_assert_not_reached ("Reached end of arguments");
4095 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DOUBLE)
4096 _dbus_assert_not_reached ("Argument type isn't double");
4098 if (dbus_message_iter_get_double (&iter) != 3.14159)
4099 _dbus_assert_not_reached ("Doubles differ");
4101 if (!dbus_message_iter_next (&iter))
4102 _dbus_assert_not_reached ("Reached end of arguments");
4104 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY)
4105 _dbus_assert_not_reached ("Argument type not an array");
4107 if (dbus_message_iter_get_array_type (&iter) != DBUS_TYPE_DOUBLE)
4108 _dbus_assert_not_reached ("Array type not double");
4111 if (!dbus_message_iter_init_array_iterator (&iter, &array, NULL))
4112 _dbus_assert_not_reached ("Array init failed");
4114 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
4115 _dbus_assert_not_reached ("Argument type isn't double");
4117 if (dbus_message_iter_get_double (&array) != 1.5)
4118 _dbus_assert_not_reached ("Unsigned integers differ");
4120 if (!dbus_message_iter_next (&array))
4121 _dbus_assert_not_reached ("Reached end of arguments");
4123 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_DOUBLE)
4124 _dbus_assert_not_reached ("Argument type isn't double");
4126 if (dbus_message_iter_get_double (&array) != 2.5)
4127 _dbus_assert_not_reached ("Unsigned integers differ");
4129 if (dbus_message_iter_next (&array))
4130 _dbus_assert_not_reached ("Didn't reach end of arguments");
4132 if (!dbus_message_iter_next (&iter))
4133 _dbus_assert_not_reached ("Reached end of arguments");
4138 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
4139 _dbus_assert_not_reached ("not dict type");
4141 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
4142 _dbus_assert_not_reached ("dict iter failed");
4144 str = dbus_message_iter_get_dict_key (&dict);
4145 if (str == NULL || strcmp (str, "test") != 0)
4146 _dbus_assert_not_reached ("wrong dict key");
4149 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
4150 _dbus_assert_not_reached ("wrong dict entry type");
4152 if (dbus_message_iter_get_uint32 (&dict) != 0xDEADBEEF)
4153 _dbus_assert_not_reached ("wrong dict entry value");
4155 if (!dbus_message_iter_next (&dict))
4156 _dbus_assert_not_reached ("reached end of dict");
4158 /* array of array of int32 (in dict) */
4160 str = dbus_message_iter_get_dict_key (&dict);
4161 if (str == NULL || strcmp (str, "array") != 0)
4162 _dbus_assert_not_reached ("wrong dict key");
4165 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_ARRAY)
4166 _dbus_assert_not_reached ("Argument type not an array");
4168 if (dbus_message_iter_get_array_type (&dict) != DBUS_TYPE_ARRAY)
4169 _dbus_assert_not_reached ("Array type not array");
4171 if (!dbus_message_iter_init_array_iterator (&dict, &array, NULL))
4172 _dbus_assert_not_reached ("Array init failed");
4174 if (dbus_message_iter_get_arg_type (&array) != DBUS_TYPE_ARRAY)
4175 _dbus_assert_not_reached ("Argument type isn't array");
4177 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
4178 _dbus_assert_not_reached ("Array type not int32");
4180 if (!dbus_message_iter_init_array_iterator (&array, &array2, NULL))
4181 _dbus_assert_not_reached ("Array init failed");
4183 if (dbus_message_iter_get_arg_type (&array2) != DBUS_TYPE_INT32)
4184 _dbus_assert_not_reached ("Argument type isn't int32");
4186 if (dbus_message_iter_get_int32 (&array2) != 0x12345678)
4187 _dbus_assert_not_reached ("Signed integers differ");
4189 if (!dbus_message_iter_next (&array2))
4190 _dbus_assert_not_reached ("Reached end of arguments");
4192 if (dbus_message_iter_get_int32 (&array2) != 0x23456781)
4193 _dbus_assert_not_reached ("Signed integers differ");
4195 if (dbus_message_iter_next (&array2))
4196 _dbus_assert_not_reached ("Didn't reached end of arguments");
4198 if (!dbus_message_iter_next (&array))
4199 _dbus_assert_not_reached ("Reached end of arguments");
4201 if (dbus_message_iter_get_array_type (&array) != DBUS_TYPE_INT32)
4202 _dbus_assert_not_reached ("Array type not int32");
4204 if (!dbus_message_iter_get_int32_array (&array,
4207 _dbus_assert_not_reached ("couldn't get int32 array");
4209 _dbus_assert (len == 3);
4210 _dbus_assert (our_int_array[0] == 0x34567812 &&
4211 our_int_array[1] == 0x45678123 &&
4212 our_int_array[2] == 0x56781234);
4213 dbus_free (our_int_array);
4215 if (dbus_message_iter_next (&array))
4216 _dbus_assert_not_reached ("Didn't reach end of array");
4218 if (dbus_message_iter_next (&dict))
4219 _dbus_assert_not_reached ("Didn't reach end of dict");
4221 if (!dbus_message_iter_next (&iter))
4222 _dbus_assert_not_reached ("Reached end of arguments");
4224 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_BYTE)
4226 _dbus_warn ("type was: %d\n", dbus_message_iter_get_arg_type (&iter));
4227 _dbus_assert_not_reached ("wrong type after dict (should be byte)");
4230 if (dbus_message_iter_get_byte (&iter) != 0xF0)
4231 _dbus_assert_not_reached ("wrong value after dict");
4234 if (!dbus_message_iter_next (&iter))
4235 _dbus_assert_not_reached ("Reached end of arguments");
4237 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NIL)
4238 _dbus_assert_not_reached ("not a nil type");
4240 if (!dbus_message_iter_next (&iter))
4241 _dbus_assert_not_reached ("Reached end of arguments");
4243 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_NAMED)
4244 _dbus_assert_not_reached ("wrong type after dict");
4246 if (!dbus_message_iter_get_named (&iter, &str, &data, &len))
4247 _dbus_assert_not_reached ("failed to get named");
4249 _dbus_assert (strcmp (str, "named")==0);
4250 _dbus_assert (len == 5);
4251 _dbus_assert (strcmp (data, "data")==0);
4255 if (dbus_message_iter_next (&iter))
4256 _dbus_assert_not_reached ("Didn't reach end of arguments");
4261 check_message_handling_type (DBusMessageIter *iter,
4264 DBusMessageIter child_iter;
4270 case DBUS_TYPE_BYTE:
4271 dbus_message_iter_get_byte (iter);
4273 case DBUS_TYPE_BOOLEAN:
4274 dbus_message_iter_get_boolean (iter);
4276 case DBUS_TYPE_INT32:
4277 dbus_message_iter_get_int32 (iter);
4279 case DBUS_TYPE_UINT32:
4280 dbus_message_iter_get_uint32 (iter);
4282 case DBUS_TYPE_DOUBLE:
4283 dbus_message_iter_get_double (iter);
4285 case DBUS_TYPE_STRING:
4288 str = dbus_message_iter_get_string (iter);
4291 _dbus_warn ("NULL string in message\n");
4297 case DBUS_TYPE_NAMED:
4300 unsigned char *data;
4303 if (!dbus_message_iter_get_named (iter, &name, &data, &len))
4305 _dbus_warn ("error reading name from named type\n");
4312 case DBUS_TYPE_ARRAY:
4316 if (!dbus_message_iter_init_array_iterator (iter, &child_iter, &array_type))
4318 _dbus_warn ("Failed to init array iterator\n");
4322 while (dbus_message_iter_has_next (&child_iter))
4324 if (!check_message_handling_type (&child_iter, array_type))
4326 _dbus_warn ("error in array element\n");
4330 if (!dbus_message_iter_next (&child_iter))
4335 case DBUS_TYPE_DICT:
4340 if (!dbus_message_iter_init_dict_iterator (iter, &child_iter))
4342 _dbus_warn ("Failed to init dict iterator\n");
4346 while ((entry_type = dbus_message_iter_get_arg_type (&child_iter)) != DBUS_TYPE_INVALID)
4348 key = dbus_message_iter_get_dict_key (&child_iter);
4351 _dbus_warn ("error reading dict key\n");
4356 if (!check_message_handling_type (&child_iter, entry_type))
4358 _dbus_warn ("error in dict value\n");
4362 if (!dbus_message_iter_next (&child_iter))
4369 _dbus_warn ("unknown type %d\n", type);
4378 check_message_handling (DBusMessage *message)
4380 DBusMessageIter iter;
4383 dbus_int32_t client_serial;
4387 client_serial = dbus_message_get_serial (message);
4389 /* can't use set_serial due to the assertions at the start of it */
4390 set_int_field (message, FIELD_CLIENT_SERIAL,
4393 if (client_serial != dbus_message_get_serial (message))
4395 _dbus_warn ("get/set cycle for client_serial did not succeed\n");
4399 /* If we implement message_set_arg (message, n, value)
4400 * then we would want to test it here
4403 dbus_message_iter_init (message, &iter);
4404 while ((type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID)
4406 if (!check_message_handling_type (&iter, type))
4409 if (!dbus_message_iter_next (&iter))
4420 check_have_valid_message (DBusMessageLoader *loader)
4422 DBusMessage *message;
4428 if (!_dbus_message_loader_queue_messages (loader))
4429 _dbus_assert_not_reached ("no memory to queue messages");
4431 if (_dbus_message_loader_get_is_corrupted (loader))
4433 _dbus_warn ("loader corrupted on message that was expected to be valid\n");
4437 message = _dbus_message_loader_pop_message (loader);
4438 if (message == NULL)
4440 _dbus_warn ("didn't load message that was expected to be valid (message not popped)\n");
4444 if (_dbus_string_get_length (&loader->data) > 0)
4446 _dbus_warn ("had leftover bytes from expected-to-be-valid single message\n");
4450 /* Verify that we're able to properly deal with the message.
4451 * For example, this would detect improper handling of messages
4452 * in nonstandard byte order.
4454 if (!check_message_handling (message))
4461 dbus_message_unref (message);
4467 check_invalid_message (DBusMessageLoader *loader)
4473 if (!_dbus_message_loader_queue_messages (loader))
4474 _dbus_assert_not_reached ("no memory to queue messages");
4476 if (!_dbus_message_loader_get_is_corrupted (loader))
4478 _dbus_warn ("loader not corrupted on message that was expected to be invalid\n");
4489 check_incomplete_message (DBusMessageLoader *loader)
4491 DBusMessage *message;
4497 if (!_dbus_message_loader_queue_messages (loader))
4498 _dbus_assert_not_reached ("no memory to queue messages");
4500 if (_dbus_message_loader_get_is_corrupted (loader))
4502 _dbus_warn ("loader corrupted on message that was expected to be valid (but incomplete)\n");
4506 message = _dbus_message_loader_pop_message (loader);
4507 if (message != NULL)
4509 _dbus_warn ("loaded message that was expected to be incomplete\n");
4517 dbus_message_unref (message);
4522 check_loader_results (DBusMessageLoader *loader,
4523 DBusMessageValidity validity)
4525 if (!_dbus_message_loader_queue_messages (loader))
4526 _dbus_assert_not_reached ("no memory to queue messages");
4530 case _DBUS_MESSAGE_VALID:
4531 return check_have_valid_message (loader);
4532 case _DBUS_MESSAGE_INVALID:
4533 return check_invalid_message (loader);
4534 case _DBUS_MESSAGE_INCOMPLETE:
4535 return check_incomplete_message (loader);
4536 case _DBUS_MESSAGE_UNKNOWN:
4540 _dbus_assert_not_reached ("bad DBusMessageValidity");
4546 * Loads the message in the given message file.
4548 * @param filename filename to load
4549 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
4550 * @param data string to load message into
4551 * @returns #TRUE if the message was loaded
4554 dbus_internal_do_not_use_load_message_file (const DBusString *filename,
4566 _dbus_verbose ("Loading raw %s\n", _dbus_string_get_const_data (filename));
4567 dbus_error_init (&error);
4568 if (!_dbus_file_get_contents (data, filename, &error))
4570 _dbus_warn ("Could not load message file %s: %s\n",
4571 _dbus_string_get_const_data (filename),
4573 dbus_error_free (&error);
4579 if (!_dbus_message_data_load (data, filename))
4581 _dbus_warn ("Could not load message file %s\n",
4582 _dbus_string_get_const_data (filename));
4595 * Tries loading the message in the given message file
4596 * and verifies that DBusMessageLoader can handle it.
4598 * @param filename filename to load
4599 * @param is_raw if #TRUE load as binary data, if #FALSE as message builder language
4600 * @param expected_validity what the message has to be like to return #TRUE
4601 * @returns #TRUE if the message has the expected validity
4604 dbus_internal_do_not_use_try_message_file (const DBusString *filename,
4606 DBusMessageValidity expected_validity)
4613 if (!_dbus_string_init (&data))
4614 _dbus_assert_not_reached ("could not allocate string\n");
4616 if (!dbus_internal_do_not_use_load_message_file (filename, is_raw,
4620 retval = dbus_internal_do_not_use_try_message_data (&data, expected_validity);
4626 if (_dbus_string_get_length (&data) > 0)
4627 _dbus_verbose_bytes_of_string (&data, 0,
4628 _dbus_string_get_length (&data));
4630 _dbus_warn ("Failed message loader test on %s\n",
4631 _dbus_string_get_const_data (filename));
4634 _dbus_string_free (&data);
4640 * Tries loading the given message data.
4643 * @param data the message data
4644 * @param expected_validity what the message has to be like to return #TRUE
4645 * @returns #TRUE if the message has the expected validity
4648 dbus_internal_do_not_use_try_message_data (const DBusString *data,
4649 DBusMessageValidity expected_validity)
4651 DBusMessageLoader *loader;
4659 /* Write the data one byte at a time */
4661 loader = _dbus_message_loader_new ();
4663 len = _dbus_string_get_length (data);
4664 for (i = 0; i < len; i++)
4668 _dbus_message_loader_get_buffer (loader, &buffer);
4669 _dbus_string_append_byte (buffer,
4670 _dbus_string_get_byte (data, i));
4671 _dbus_message_loader_return_buffer (loader, buffer, 1);
4674 if (!check_loader_results (loader, expected_validity))
4677 _dbus_message_loader_unref (loader);
4680 /* Write the data all at once */
4682 loader = _dbus_message_loader_new ();
4687 _dbus_message_loader_get_buffer (loader, &buffer);
4688 _dbus_string_copy (data, 0, buffer,
4689 _dbus_string_get_length (buffer));
4690 _dbus_message_loader_return_buffer (loader, buffer, 1);
4693 if (!check_loader_results (loader, expected_validity))
4696 _dbus_message_loader_unref (loader);
4699 /* Write the data 2 bytes at a time */
4701 loader = _dbus_message_loader_new ();
4703 len = _dbus_string_get_length (data);
4704 for (i = 0; i < len; i += 2)
4708 _dbus_message_loader_get_buffer (loader, &buffer);
4709 _dbus_string_append_byte (buffer,
4710 _dbus_string_get_byte (data, i));
4712 _dbus_string_append_byte (buffer,
4713 _dbus_string_get_byte (data, i+1));
4714 _dbus_message_loader_return_buffer (loader, buffer, 1);
4717 if (!check_loader_results (loader, expected_validity))
4720 _dbus_message_loader_unref (loader);
4728 _dbus_message_loader_unref (loader);
4734 process_test_subdir (const DBusString *test_base_dir,
4736 DBusMessageValidity validity,
4737 DBusForeachMessageFileFunc function,
4740 DBusString test_directory;
4741 DBusString filename;
4749 if (!_dbus_string_init (&test_directory))
4750 _dbus_assert_not_reached ("didn't allocate test_directory\n");
4752 _dbus_string_init_const (&filename, subdir);
4754 if (!_dbus_string_copy (test_base_dir, 0,
4755 &test_directory, 0))
4756 _dbus_assert_not_reached ("couldn't copy test_base_dir to test_directory");
4758 if (!_dbus_concat_dir_and_file (&test_directory, &filename))
4759 _dbus_assert_not_reached ("couldn't allocate full path");
4761 _dbus_string_free (&filename);
4762 if (!_dbus_string_init (&filename))
4763 _dbus_assert_not_reached ("didn't allocate filename string\n");
4765 dbus_error_init (&error);
4766 dir = _dbus_directory_open (&test_directory, &error);
4769 _dbus_warn ("Could not open %s: %s\n",
4770 _dbus_string_get_const_data (&test_directory),
4772 dbus_error_free (&error);
4776 printf ("Testing:\n");
4779 while (_dbus_directory_get_next_file (dir, &filename, &error))
4781 DBusString full_path;
4784 if (!_dbus_string_init (&full_path))
4785 _dbus_assert_not_reached ("couldn't init string");
4787 if (!_dbus_string_copy (&test_directory, 0, &full_path, 0))
4788 _dbus_assert_not_reached ("couldn't copy dir to full_path");
4790 if (!_dbus_concat_dir_and_file (&full_path, &filename))
4791 _dbus_assert_not_reached ("couldn't concat file to dir");
4793 if (_dbus_string_ends_with_c_str (&filename, ".message"))
4795 else if (_dbus_string_ends_with_c_str (&filename, ".message-raw"))
4799 _dbus_verbose ("Skipping non-.message file %s\n",
4800 _dbus_string_get_const_data (&filename));
4801 _dbus_string_free (&full_path);
4806 _dbus_string_get_const_data (&filename));
4808 _dbus_verbose (" expecting %s\n",
4809 validity == _DBUS_MESSAGE_VALID ? "valid" :
4810 (validity == _DBUS_MESSAGE_INVALID ? "invalid" :
4811 (validity == _DBUS_MESSAGE_INCOMPLETE ? "incomplete" : "unknown")));
4813 if (! (*function) (&full_path, is_raw, validity, user_data))
4815 _dbus_string_free (&full_path);
4819 _dbus_string_free (&full_path);
4822 if (dbus_error_is_set (&error))
4824 _dbus_warn ("Could not get next file in %s: %s\n",
4825 _dbus_string_get_const_data (&test_directory),
4827 dbus_error_free (&error);
4836 _dbus_directory_close (dir);
4837 _dbus_string_free (&test_directory);
4838 _dbus_string_free (&filename);
4844 * Runs the given function on every message file in the test suite.
4845 * The function should return #FALSE on test failure or fatal error.
4847 * @param test_data_dir root dir of the test suite data files (top_srcdir/test/data)
4848 * @param func the function to run
4849 * @param user_data data for function
4850 * @returns #FALSE if there's a failure
4853 dbus_internal_do_not_use_foreach_message_file (const char *test_data_dir,
4854 DBusForeachMessageFileFunc func,
4857 DBusString test_directory;
4862 _dbus_string_init_const (&test_directory, test_data_dir);
4864 if (!process_test_subdir (&test_directory, "valid-messages",
4865 _DBUS_MESSAGE_VALID, func, user_data))
4868 if (!process_test_subdir (&test_directory, "invalid-messages",
4869 _DBUS_MESSAGE_INVALID, func, user_data))
4872 if (!process_test_subdir (&test_directory, "incomplete-messages",
4873 _DBUS_MESSAGE_INCOMPLETE, func, user_data))
4880 _dbus_string_free (&test_directory);
4886 verify_test_message (DBusMessage *message)
4888 dbus_int32_t our_int;
4891 dbus_bool_t our_bool;
4892 dbus_int32_t *our_int_array;
4893 dbus_uint32_t our_uint32;
4894 int our_int_array_len;
4895 DBusMessageIter iter, dict;
4898 dbus_message_iter_init (message, &iter);
4900 dbus_error_init (&error);
4901 if (!dbus_message_iter_get_args (&iter, &error,
4902 DBUS_TYPE_INT32, &our_int,
4903 DBUS_TYPE_STRING, &our_str,
4904 DBUS_TYPE_DOUBLE, &our_double,
4905 DBUS_TYPE_BOOLEAN, &our_bool,
4906 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, &our_int_array, &our_int_array_len,
4909 _dbus_verbose ("error: %s - %s\n", error.name, (error.message != NULL)?error.message: "no message");
4910 _dbus_assert_not_reached ("Could not get arguments");
4913 if (our_int != -0x12345678)
4914 _dbus_assert_not_reached ("integers differ!");
4916 if (our_double != 3.14159)
4917 _dbus_assert_not_reached ("doubles differ!");
4919 if (strcmp (our_str, "Test string") != 0)
4920 _dbus_assert_not_reached ("strings differ!");
4921 dbus_free (our_str);
4924 _dbus_assert_not_reached ("booleans differ");
4926 if (our_int_array_len != 4 ||
4927 our_int_array[0] != 0x12345678 ||
4928 our_int_array[1] != 0x23456781 ||
4929 our_int_array[2] != 0x34567812 ||
4930 our_int_array[3] != 0x45678123)
4931 _dbus_assert_not_reached ("array differ");
4932 dbus_free (our_int_array);
4934 if (!dbus_message_iter_next (&iter))
4935 _dbus_assert_not_reached ("Reached end of arguments");
4937 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_DICT)
4938 _dbus_assert_not_reached ("not dict type");
4940 if (!dbus_message_iter_init_dict_iterator (&iter, &dict))
4941 _dbus_assert_not_reached ("dict iter failed");
4943 our_str = dbus_message_iter_get_dict_key (&dict);
4944 if (our_str == NULL || strcmp (our_str, "test") != 0)
4945 _dbus_assert_not_reached ("wrong dict key");
4946 dbus_free (our_str);
4948 if (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_UINT32)
4950 _dbus_verbose ("dict entry type: %d\n", dbus_message_iter_get_arg_type (&dict));
4951 _dbus_assert_not_reached ("wrong dict entry type");
4954 if ((our_uint32 = dbus_message_iter_get_uint32 (&dict)) != 0xDEADBEEF)
4956 _dbus_verbose ("dict entry val: %x\n", our_uint32);
4957 _dbus_assert_not_reached ("wrong dict entry value");
4960 if (dbus_message_iter_next (&dict))
4961 _dbus_assert_not_reached ("Didn't reach end of dict");
4963 if (!dbus_message_iter_next (&iter))
4964 _dbus_assert_not_reached ("Reached end of arguments");
4966 if (dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_UINT32)
4967 _dbus_assert_not_reached ("wrong type after dict");
4969 if (dbus_message_iter_get_uint32 (&iter) != 0xCAFEBABE)
4970 _dbus_assert_not_reached ("wrong value after dict");
4972 if (dbus_message_iter_next (&iter))
4973 _dbus_assert_not_reached ("Didn't reach end of arguments");
4977 * @ingroup DBusMessageInternals
4978 * Unit test for DBusMessage.
4980 * @returns #TRUE on success.
4983 _dbus_message_test (const char *test_data_dir)
4985 DBusMessage *message;
4986 DBusMessageLoader *loader;
4987 DBusMessageIter iter, child_iter, child_iter2, child_iter3;
4993 const dbus_uint32_t our_int32_array[] = { 0x12345678, 0x23456781, 0x34567812, 0x45678123 };
4995 _dbus_assert (sizeof (DBusMessageRealIter) <= sizeof (DBusMessageIter));
4997 /* Test the vararg functions */
4998 message = dbus_message_new ("org.freedesktop.DBus.Test", "testMessage");
4999 _dbus_message_set_serial (message, 1);
5000 dbus_message_append_args (message,
5001 DBUS_TYPE_INT32, -0x12345678,
5002 DBUS_TYPE_STRING, "Test string",
5003 DBUS_TYPE_DOUBLE, 3.14159,
5004 DBUS_TYPE_BOOLEAN, TRUE,
5005 DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, our_int32_array, 4,
5008 dbus_message_append_iter_init (message, &iter);
5009 dbus_message_iter_append_dict (&iter, &child_iter);
5010 dbus_message_iter_append_dict_key (&child_iter, "test");
5011 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
5012 dbus_message_iter_append_uint32 (&iter, 0xCAFEBABE);
5014 _dbus_verbose_bytes_of_string (&message->header, 0,
5015 _dbus_string_get_length (&message->header));
5016 _dbus_verbose_bytes_of_string (&message->body, 0,
5017 _dbus_string_get_length (&message->body));
5019 verify_test_message (message);
5021 copy = dbus_message_copy (message);
5023 _dbus_assert (message->client_serial == copy->client_serial);
5024 _dbus_assert (message->reply_serial == copy->reply_serial);
5025 _dbus_assert (message->header_padding == copy->header_padding);
5027 _dbus_assert (_dbus_string_get_length (&message->header) ==
5028 _dbus_string_get_length (©->header));
5030 _dbus_assert (_dbus_string_get_length (&message->body) ==
5031 _dbus_string_get_length (©->body));
5033 verify_test_message (copy);
5035 name1 = dbus_message_get_name (message);
5036 name2 = dbus_message_get_name (copy);
5038 _dbus_assert (strcmp (name1, name2) == 0);
5040 dbus_message_unref (message);
5041 dbus_message_unref (copy);
5043 message = dbus_message_new ("org.freedesktop.DBus.Test", "testMessage");
5044 _dbus_message_set_serial (message, 1);
5045 dbus_message_set_reply_serial (message, 0x12345678);
5047 dbus_message_append_iter_init (message, &iter);
5048 dbus_message_iter_append_string (&iter, "Test string");
5049 dbus_message_iter_append_int32 (&iter, -0x12345678);
5050 dbus_message_iter_append_uint32 (&iter, 0xedd1e);
5051 dbus_message_iter_append_double (&iter, 3.14159);
5053 dbus_message_iter_append_array (&iter, &child_iter, DBUS_TYPE_DOUBLE);
5054 dbus_message_iter_append_double (&child_iter, 1.5);
5055 dbus_message_iter_append_double (&child_iter, 2.5);
5058 dbus_message_iter_append_dict (&iter, &child_iter);
5059 dbus_message_iter_append_dict_key (&child_iter, "test");
5060 dbus_message_iter_append_uint32 (&child_iter, 0xDEADBEEF);
5062 /* array of array of int32 (in dict) */
5063 dbus_message_iter_append_dict_key (&child_iter, "array");
5064 dbus_message_iter_append_array (&child_iter, &child_iter2, DBUS_TYPE_ARRAY);
5065 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
5066 dbus_message_iter_append_int32 (&child_iter3, 0x12345678);
5067 dbus_message_iter_append_int32 (&child_iter3, 0x23456781);
5068 _dbus_warn ("next call expected to fail with wrong array type\n");
5069 _dbus_assert (!dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_UINT32));
5070 dbus_message_iter_append_array (&child_iter2, &child_iter3, DBUS_TYPE_INT32);
5071 dbus_message_iter_append_int32 (&child_iter3, 0x34567812);
5072 dbus_message_iter_append_int32 (&child_iter3, 0x45678123);
5073 dbus_message_iter_append_int32 (&child_iter3, 0x56781234);
5075 dbus_message_iter_append_byte (&iter, 0xF0);
5077 dbus_message_iter_append_nil (&iter);
5079 dbus_message_iter_append_named (&iter, "named",
5082 message_iter_test (message);
5084 /* Message loader test */
5085 _dbus_message_lock (message);
5086 loader = _dbus_message_loader_new ();
5088 /* Write the header data one byte at a time */
5089 data = _dbus_string_get_const_data (&message->header);
5090 for (i = 0; i < _dbus_string_get_length (&message->header); i++)
5094 _dbus_message_loader_get_buffer (loader, &buffer);
5095 _dbus_string_append_byte (buffer, data[i]);
5096 _dbus_message_loader_return_buffer (loader, buffer, 1);
5099 /* Write the body data one byte at a time */
5100 data = _dbus_string_get_const_data (&message->body);
5101 for (i = 0; i < _dbus_string_get_length (&message->body); i++)
5105 _dbus_message_loader_get_buffer (loader, &buffer);
5106 _dbus_string_append_byte (buffer, data[i]);
5107 _dbus_message_loader_return_buffer (loader, buffer, 1);
5110 dbus_message_unref (message);
5112 /* Now pop back the message */
5113 if (!_dbus_message_loader_queue_messages (loader))
5114 _dbus_assert_not_reached ("no memory to queue messages");
5116 if (_dbus_message_loader_get_is_corrupted (loader))
5117 _dbus_assert_not_reached ("message loader corrupted");
5119 message = _dbus_message_loader_pop_message (loader);
5121 _dbus_assert_not_reached ("received a NULL message");
5123 if (dbus_message_get_reply_serial (message) != 0x12345678)
5124 _dbus_assert_not_reached ("reply serial fields differ");
5126 message_iter_test (message);
5128 dbus_message_unref (message);
5129 _dbus_message_loader_unref (loader);
5131 /* Now load every message in test_data_dir if we have one */
5132 if (test_data_dir == NULL)
5135 return dbus_internal_do_not_use_foreach_message_file (test_data_dir,
5136 (DBusForeachMessageFileFunc)
5137 dbus_internal_do_not_use_try_message_file,
5141 #endif /* DBUS_BUILD_TESTS */