26 #include "dbus-internals.h"    27 #include "dbus-marshal-recursive.h"    28 #include "dbus-marshal-validate.h"    29 #include "dbus-marshal-byteswap.h"    30 #include "dbus-marshal-header.h"    31 #include "dbus-signature.h"    32 #include "dbus-message-private.h"    33 #include "dbus-object-tree.h"    34 #include "dbus-memory.h"    35 #include "dbus-list.h"    36 #include "dbus-threads-internal.h"    37 #ifdef HAVE_UNIX_FD_PASSING    38 #include "dbus-sysdeps.h"    39 #include "dbus-sysdeps-unix.h"    44 #define _DBUS_TYPE_IS_STRINGLIKE(type) \    45   (type == DBUS_TYPE_STRING || type == DBUS_TYPE_SIGNATURE || \    46    type == DBUS_TYPE_OBJECT_PATH)    48 static void dbus_message_finalize (
DBusMessage *message);
    60 #ifdef DBUS_ENABLE_EMBEDDED_TESTS    62 _dbus_enable_message_cache (
void)
    64   static int enabled = -1;
    79             _dbus_warn (
"DBUS_MESSAGE_CACHE should be 0 or 1 if set, not '%s'",
    88 #   define _dbus_enable_message_cache() (TRUE)    91 #ifndef _dbus_message_trace_ref    98   static int enabled = -1;
   100   _dbus_trace_ref (
"DBusMessage", message, old_refcount, new_refcount, why,
   101       "DBUS_MESSAGE_TRACE", &enabled);
   114   DBUS_MESSAGE_ITER_TYPE_READER = 3,
   115   DBUS_MESSAGE_ITER_TYPE_WRITER = 7
   148   dbus_uint32_t dummy3;
   176       *type_str_p = &_dbus_empty_signature_str;
   195   if (byte_order == DBUS_COMPILER_BYTE_ORDER)
   198   _dbus_verbose (
"Swapping message into compiler byte order\n");
   200   get_const_signature (&message->
header, &type_str, &type_pos);
   204                           DBUS_COMPILER_BYTE_ORDER,
   209                 DBUS_COMPILER_BYTE_ORDER);
   218 #define ensure_byte_order(message) _dbus_message_byteswap (message)   238   *body = &message->
body;
   256 #ifdef HAVE_UNIX_FD_PASSING   257   *fds = message->unix_fds;
   258   *n_fds = message->n_unix_fds;
   278                          dbus_uint32_t  serial)
   280   _dbus_return_if_fail (message != 
NULL);
   281   _dbus_return_if_fail (!message->
locked);
   315         _dbus_string_get_length (&message->
header.
data) +
   316         _dbus_string_get_length (&message->
body);
   318 #ifdef HAVE_UNIX_FD_PASSING   319       message->unix_fd_counter_delta = message->n_unix_fds;
   323       _dbus_verbose (
"message has size %ld\n",
   332 #ifdef HAVE_UNIX_FD_PASSING   388 #ifdef HAVE_UNIX_FD_PASSING   412                                    _dbus_string_get_length (&message->
body));
   464                              const char  *signature)
   466   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
   467   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
   468   _dbus_return_val_if_fail (signature == 
NULL ||
   469                             _dbus_check_is_valid_signature (signature));
   471   _dbus_return_val_if_fail (_dbus_string_get_length (&message->
body) == 0 ||
   474   return set_or_delete_string_field (message,
   528 #define MAX_MESSAGE_SIZE_TO_CACHE 10 * _DBUS_ONE_KILOBYTE   531 #define MAX_MESSAGE_CACHE_SIZE    5   535 static int message_cache_count = 0;
   539 dbus_message_cache_shutdown (
void *data)
   545         "before registering a shutdown function");
   550       if (message_cache[i])
   551         dbus_message_finalize (message_cache[i]);
   556   message_cache_count = 0;
   557   message_cache_shutdown_registered = 
FALSE;
   570 dbus_message_get_cached (
void)
   586   if (message_cache_count == 0)
   601       if (message_cache[i])
   603           message = message_cache[i];
   604           message_cache[i] = 
NULL;
   605           message_cache_count -= 1;
   623 #ifdef HAVE_UNIX_FD_PASSING   625 close_unix_fds(
int *fds, 
unsigned *n_fds)
   635   for (i = 0; i < *n_fds; i++)
   651 free_counter (
void *element,
   658 #ifdef HAVE_UNIX_FD_PASSING   672 dbus_message_cache_or_finalize (
DBusMessage *message)
   685                       free_counter, message);
   688 #ifdef HAVE_UNIX_FD_PASSING   689   close_unix_fds(message->unix_fds, &message->n_unix_fds);
   699           "the first time we constructed a message");
   702   if (!message_cache_shutdown_registered)
   712           message_cache[i] = 
NULL;
   716       message_cache_shutdown_registered = 
TRUE;
   721   if (!_dbus_enable_message_cache ())
   724   if ((_dbus_string_get_length (&message->
header.
data) +
   725        _dbus_string_get_length (&message->
body)) >
   734   while (message_cache[i] != 
NULL)
   741   message_cache_count += 1;
   743 #ifndef DBUS_DISABLE_CHECKS   753     dbus_message_finalize (message);
   756 #if defined(DBUS_ENABLE_CHECKS) || defined(DBUS_ENABLE_ASSERT)   770   if (iter->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER)
   780   else if (iter->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER)
   798       _dbus_warn_check_failed (
"dbus message iterator invalid because the message has been modified (or perhaps the iterator is just uninitialized)\n");
   825   int spec_type, msg_type, i, j;
   833   spec_type = first_arg_type;
   839   DBUS_VA_COPY (copy_args, var_args);
   845       if (msg_type != spec_type)
   848                           "Argument %d is specified to be of type \"%s\", but "   849                           "is actually of type \"%s\"\n", i,
   858 #ifdef HAVE_UNIX_FD_PASSING   862           pfd = va_arg (var_args, 
int*);
   870                               "Message refers to file descriptor at index %i,"   871                               "but has only %i descriptors attached.\n",
   883                           "Platform does not support file desciptor passing.\n");
   901           int spec_element_type;
   906           spec_element_type = va_arg (var_args, 
int);
   909           if (spec_element_type != element_type)
   912                               "Argument %d is specified to be an array of \"%s\", but "   913                               "is actually an array of \"%s\"\n",
   925               n_elements_p = va_arg (var_args, 
int*);
   933                                                   (
void *) ptr, n_elements_p);
   935           else if (_DBUS_TYPE_IS_STRINGLIKE (spec_element_type))
   941               str_array_p = va_arg (var_args, 
char***);
   942               n_elements_p = va_arg (var_args, 
int*);
   957               str_array = 
dbus_new0 (
char*, n_elements + 1);
   958               if (str_array == 
NULL)
   960                   _DBUS_SET_OOM (error);
   968               while (j < n_elements)
   975                   if (str_array[j] == 
NULL)
   978                       _DBUS_SET_OOM (error);
   992               *str_array_p = str_array;
   993               *n_elements_p = n_elements;
   995 #ifndef DBUS_DISABLE_CHECKS   998               _dbus_warn (
"you can't read arrays of container types (struct, variant, array) with %s for now\n",
   999                           _DBUS_FUNCTION_NAME);
  1004 #ifndef DBUS_DISABLE_CHECKS  1007           _dbus_warn (
"you can only read arrays and basic types with %s for now\n",
  1008                       _DBUS_FUNCTION_NAME);
  1016       spec_type = va_arg (var_args, 
int);
  1020                           "Message has only %d arguments, but more were expected", i);
  1034       spec_type = first_arg_type;
  1041 #ifdef HAVE_UNIX_FD_PASSING  1044               pfd = va_arg (copy_args, 
int *);
  1060               int spec_element_type;
  1062               spec_element_type = va_arg (copy_args, 
int);
  1067                   va_arg (copy_args, 
int *);
  1069               else if (_DBUS_TYPE_IS_STRINGLIKE (spec_element_type))
  1071                   char ***str_array_p;
  1073                   str_array_p = va_arg (copy_args, 
char ***);
  1075                   va_arg (copy_args, 
int *);
  1078                   *str_array_p = 
NULL;
  1082           spec_type = va_arg (copy_args, 
int);
  1152   _dbus_return_val_if_fail (message != 
NULL, 0);
  1167                                dbus_uint32_t  reply_serial)
  1171   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  1172   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  1173   _dbus_return_val_if_fail (reply_serial != 0, 
FALSE); 
  1175   value.
u32 = reply_serial;
  1192   dbus_uint32_t v_UINT32;
  1194   _dbus_return_val_if_fail (message != 
NULL, 0);
  1214                       free_counter, message);
  1220 #ifdef HAVE_UNIX_FD_PASSING  1221   close_unix_fds(message->unix_fds, &message->n_unix_fds);
  1231 dbus_message_new_empty_header (
void)
  1236   message = dbus_message_get_cached ();
  1238   if (message != 
NULL)
  1246       if (message == 
NULL)
  1248 #ifndef DBUS_DISABLE_CHECKS  1252 #ifdef HAVE_UNIX_FD_PASSING  1253       message->unix_fds = 
NULL;
  1254       message->n_unix_fds_allocated = 0;
  1260   _dbus_message_trace_ref (message, 0, 1, 
"new_empty_header");
  1263 #ifndef DBUS_DISABLE_CHECKS  1270 #ifdef HAVE_UNIX_FD_PASSING  1271   message->n_unix_fds = 0;
  1272   message->n_unix_fds_allocated = 0;
  1273   message->unix_fd_counter_delta = 0;
  1322   message = dbus_message_new_empty_header ();
  1323   if (message == 
NULL)
  1327                             DBUS_COMPILER_BYTE_ORDER,
  1367   _dbus_return_val_if_fail (path != 
NULL, 
NULL);
  1368   _dbus_return_val_if_fail (method != 
NULL, 
NULL);
  1369   _dbus_return_val_if_fail (destination == 
NULL ||
  1370                             _dbus_check_is_valid_bus_name (destination), 
NULL);
  1371   _dbus_return_val_if_fail (_dbus_check_is_valid_path (path), 
NULL);
  1372   _dbus_return_val_if_fail (iface == 
NULL ||
  1373                             _dbus_check_is_valid_interface (iface), 
NULL);
  1374   _dbus_return_val_if_fail (_dbus_check_is_valid_member (method), 
NULL);
  1376   message = dbus_message_new_empty_header ();
  1377   if (message == 
NULL)
  1381                             DBUS_COMPILER_BYTE_ORDER,
  1383                             destination, path, iface, method, 
NULL))
  1405   _dbus_return_val_if_fail (method_call != 
NULL, 
NULL);
  1411   message = dbus_message_new_empty_header ();
  1412   if (message == 
NULL)
  1416                             DBUS_COMPILER_BYTE_ORDER,
  1457   _dbus_return_val_if_fail (path != 
NULL, 
NULL);
  1458   _dbus_return_val_if_fail (iface != 
NULL, 
NULL);
  1459   _dbus_return_val_if_fail (name != 
NULL, 
NULL);
  1460   _dbus_return_val_if_fail (_dbus_check_is_valid_path (path), 
NULL);
  1461   _dbus_return_val_if_fail (_dbus_check_is_valid_interface (iface), 
NULL);
  1462   _dbus_return_val_if_fail (_dbus_check_is_valid_member (name), 
NULL);
  1464   message = dbus_message_new_empty_header ();
  1465   if (message == 
NULL)
  1469                             DBUS_COMPILER_BYTE_ORDER,
  1498                         const char  *error_name,
  1499                         const char  *error_message)
  1505   _dbus_return_val_if_fail (reply_to != 
NULL, 
NULL);
  1506   _dbus_return_val_if_fail (error_name != 
NULL, 
NULL);
  1507   _dbus_return_val_if_fail (_dbus_check_is_valid_error_name (error_name), 
NULL);
  1515   message = dbus_message_new_empty_header ();
  1516   if (message == 
NULL)
  1520                             DBUS_COMPILER_BYTE_ORDER,
  1537   if (error_message != 
NULL)
  1570                                const char  *error_name,
  1571                                const char  *error_format,
  1578   _dbus_return_val_if_fail (reply_to != 
NULL, 
NULL);
  1579   _dbus_return_val_if_fail (error_name != 
NULL, 
NULL);
  1580   _dbus_return_val_if_fail (_dbus_check_is_valid_error_name (error_name), 
NULL);
  1585   va_start (args, error_format);
  1589                                       _dbus_string_get_const_data (&str));
  1618   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  1627 #ifndef DBUS_DISABLE_CHECKS  1638                                        _dbus_string_get_length (&message->
body)))
  1649 #ifdef HAVE_UNIX_FD_PASSING  1650   retval->unix_fds = 
dbus_new(
int, message->n_unix_fds);
  1651   if (retval->unix_fds == 
NULL && message->n_unix_fds > 0)
  1654   retval->n_unix_fds_allocated = message->n_unix_fds;
  1656   for (retval->n_unix_fds = 0;
  1657        retval->n_unix_fds < message->n_unix_fds;
  1658        retval->n_unix_fds++)
  1660       retval->unix_fds[retval->n_unix_fds] = 
_dbus_dup(message->unix_fds[retval->n_unix_fds], 
NULL);
  1662       if (retval->unix_fds[retval->n_unix_fds] < 0)
  1668   _dbus_message_trace_ref (retval, 0, 1, 
"copy");
  1675 #ifdef HAVE_UNIX_FD_PASSING  1676   close_unix_fds(retval->unix_fds, &retval->n_unix_fds);
  1696   dbus_int32_t old_refcount;
  1698   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  1704   _dbus_message_trace_ref (message, old_refcount, old_refcount + 1, 
"ref");
  1719  dbus_int32_t old_refcount;
  1721   _dbus_return_if_fail (message != 
NULL);
  1723   _dbus_return_if_fail (!message->
in_cache);
  1729   _dbus_message_trace_ref (message, old_refcount, old_refcount - 1, 
"unref");
  1731   if (old_refcount == 1)
  1734       dbus_message_cache_or_finalize (message);
  1826   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  1828   va_start (var_args, first_arg_type);
  1858   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  1860   type = first_arg_type;
  1882           element_type = va_arg (var_args, 
int);
  1884           buf[0] = element_type;
  1899               n_elements = va_arg (var_args, 
int);
  1909           else if (_DBUS_TYPE_IS_STRINGLIKE (element_type))
  1911               const char ***value_p;
  1916               value_p = va_arg (var_args, 
const char***);
  1917               n_elements = va_arg (var_args, 
int);
  1922               while (i < n_elements)
  1935               _dbus_warn (
"arrays of %s can't be appended with %s for now\n",
  1937                           _DBUS_FUNCTION_NAME);
  1945 #ifndef DBUS_DISABLE_CHECKS  1948           _dbus_warn (
"type %s isn't supported yet in %s\n",
  1954       type = va_arg (var_args, 
int);
  2016   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  2017   _dbus_return_val_if_error_is_set (error, 
FALSE);
  2019   va_start (var_args, first_arg_type);
  2044   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  2045   _dbus_return_val_if_error_is_set (error, 
FALSE);
  2052 _dbus_message_iter_init_common (
DBusMessage         *message,
  2070       4 * 
sizeof (
void *) + 
sizeof (dbus_uint32_t) + 9 * 
sizeof (
int));
  2113   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  2114   _dbus_return_val_if_fail (iter != 
NULL, 
FALSE);
  2116   get_const_signature (&message->
header, &type_str, &type_pos);
  2118   _dbus_message_iter_init_common (message, real,
  2119                                   DBUS_MESSAGE_ITER_TYPE_READER);
  2141   _dbus_return_val_if_fail (_dbus_message_iter_check (real), 
FALSE);
  2142   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER, 
FALSE);
  2160   _dbus_return_val_if_fail (_dbus_message_iter_check (real), 
FALSE);
  2161   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER, 
FALSE);
  2186   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER, 
FALSE);
  2243   _dbus_return_if_fail (_dbus_message_iter_check (real));
  2244   _dbus_return_if_fail (sub != 
NULL);
  2270   _dbus_return_val_if_fail (_dbus_message_iter_check (real), 
NULL);
  2278                                 _dbus_string_get_const_data (sig) + start,
  2340   _dbus_return_if_fail (_dbus_message_iter_check (real));
  2341   _dbus_return_if_fail (value != 
NULL);
  2345 #ifdef HAVE_UNIX_FD_PASSING  2353         *((
int*) value) = -1;
  2359       *((
int*) value) = -1;
  2387   _dbus_return_val_if_fail (_dbus_message_iter_check (real), 0);
  2397       n_elements = total_len / alignment;
  2428   _dbus_return_val_if_fail (_dbus_message_iter_check (real), 0);
  2474 #ifndef DBUS_DISABLE_CHECKS  2477   _dbus_return_if_fail (_dbus_message_iter_check (real));
  2478   _dbus_return_if_fail (value != 
NULL);
  2504   _dbus_return_if_fail (message != 
NULL);
  2505   _dbus_return_if_fail (iter != 
NULL);
  2507   _dbus_message_iter_init_common (message, real,
  2508                                   DBUS_MESSAGE_ITER_TYPE_WRITER);
  2517                                         _dbus_string_get_length (&message->
body));
  2533   int current_sig_pos;
  2550                                    ¤t_sig, ¤t_sig_pos))
  2557       current_len = _dbus_string_get_byte (current_sig, current_sig_pos);
  2558       current_sig_pos += 1; 
  2586                                str, _dbus_string_get_length (str));
  2603   const char *v_STRING;
  2620   v_STRING = _dbus_string_get_const_data (str);
  2663 #ifndef DBUS_DISABLE_CHECKS  2667   if (!_dbus_message_iter_check (iter))
  2680 #ifdef HAVE_UNIX_FD_PASSING  2690   if (m->n_unix_fds + n > m->n_unix_fds_allocated)
  2696       k = (m->n_unix_fds + n) * 2;
  2707       m->n_unix_fds_allocated = k;
  2710   return m->unix_fds + m->n_unix_fds;
  2741   _dbus_return_val_if_fail (_dbus_message_iter_append_check (real), 
FALSE);
  2742   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER, 
FALSE);
  2744   _dbus_return_val_if_fail (value != 
NULL, 
FALSE);
  2746 #ifndef DBUS_DISABLE_CHECKS  2749       const char * 
const *string_p;
  2754         _dbus_return_val_if_fail (_dbus_check_is_valid_utf8 (*string_p), 
FALSE);
  2759         _dbus_return_val_if_fail (_dbus_check_is_valid_path (*string_p), 
FALSE);
  2764         _dbus_return_val_if_fail (_dbus_check_is_valid_signature (*string_p), 
FALSE);
  2769         _dbus_return_val_if_fail (*bool_p == 0 || *bool_p == 1, 
FALSE);
  2779   if (!_dbus_message_iter_open_signature (real))
  2784 #ifdef HAVE_UNIX_FD_PASSING  2791       if (!(fds = expand_fd_array(real->
message, 1)))
  2798       u = real->
message->n_unix_fds;
  2806       real->
message->n_unix_fds += 1;
  2833   if (!_dbus_message_iter_close_signature (real))
  2883   _dbus_return_val_if_fail (_dbus_message_iter_append_check (real), 
FALSE);
  2884   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER, 
FALSE);
  2887   _dbus_return_val_if_fail (value != 
NULL, 
FALSE);
  2888   _dbus_return_val_if_fail (n_elements >= 0, 
FALSE);
  2889   _dbus_return_val_if_fail (n_elements <=
  2893 #ifndef DBUS_DISABLE_CHECKS  2899       for (i = 0; i < n_elements; i++)
  2901           _dbus_return_val_if_fail ((*bools)[i] == 0 || (*bools)[i] == 1, 
FALSE);
  2935                                   const char      *contained_signature,
  2943   _dbus_return_val_if_fail (_dbus_message_iter_append_check (real), 
FALSE);
  2944   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER, 
FALSE);
  2946   _dbus_return_val_if_fail (sub != 
NULL, 
FALSE);
  2948                              contained_signature == 
NULL) ||
  2950                              contained_signature == 
NULL) ||
  2952                              contained_signature != 
NULL) ||
  2961                             (contained_signature == 
NULL ||
  2962                              _dbus_check_is_valid_signature (contained_signature)),
  2965   if (!_dbus_message_iter_open_signature (real))
  2971   if (contained_signature != 
NULL)
  2989     _dbus_message_iter_abandon_signature (real);
  3016   _dbus_return_val_if_fail (_dbus_message_iter_append_check (real), 
FALSE);
  3017   _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER, 
FALSE);
  3018   _dbus_return_val_if_fail (_dbus_message_iter_append_check (real_sub), 
FALSE);
  3019   _dbus_return_val_if_fail (real_sub->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER, 
FALSE);
  3024   if (!_dbus_message_iter_close_signature (real))
  3046 #ifndef DBUS_DISABLE_CHECKS  3049   _dbus_return_if_fail (_dbus_message_iter_append_check (real));
  3050   _dbus_return_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
  3051   _dbus_return_if_fail (_dbus_message_iter_append_check (real_sub));
  3052   _dbus_return_if_fail (real_sub->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
  3055   _dbus_message_iter_abandon_signature (real);
  3078   _dbus_return_if_fail (message != 
NULL);
  3079   _dbus_return_if_fail (!message->
locked);
  3096   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3120   _dbus_return_if_fail (message != 
NULL);
  3121   _dbus_return_if_fail (!message->
locked);
  3138   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3159                        const char    *object_path)
  3161   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3162   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3163   _dbus_return_val_if_fail (object_path == 
NULL ||
  3164                             _dbus_check_is_valid_path (object_path),
  3167   return set_or_delete_string_field (message,
  3191   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3214   const char *msg_path;
  3217   if (msg_path == 
NULL)
  3228   if (strcmp (msg_path, path) == 0)
  3260   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3261   _dbus_return_val_if_fail (path != 
NULL, 
FALSE);
  3292   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3293   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3294   _dbus_return_val_if_fail (iface == 
NULL ||
  3295                             _dbus_check_is_valid_interface (iface),
  3298   return set_or_delete_string_field (message,
  3322   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3343   const char *msg_interface;
  3346   if (msg_interface == 
NULL)
  3357   if (strcmp (msg_interface, iface) == 0)
  3380   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3381   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3382   _dbus_return_val_if_fail (member == 
NULL ||
  3383                             _dbus_check_is_valid_member (member),
  3386   return set_or_delete_string_field (message,
  3408   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3429   const char *msg_member;
  3432   if (msg_member == 
NULL)
  3443   if (strcmp (msg_member, member) == 0)
  3463                              const char   *error_name)
  3465   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3466   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3467   _dbus_return_val_if_fail (error_name == 
NULL ||
  3468                             _dbus_check_is_valid_error_name (error_name),
  3471   return set_or_delete_string_field (message,
  3492   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3517                               const char   *destination)
  3519   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3520   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3521   _dbus_return_val_if_fail (destination == 
NULL ||
  3522                             _dbus_check_is_valid_bus_name (destination),
  3525   return set_or_delete_string_field (message,
  3545   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3573   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3574   _dbus_return_val_if_fail (!message->
locked, 
FALSE);
  3575   _dbus_return_val_if_fail (sender == 
NULL ||
  3576                             _dbus_check_is_valid_bus_name (sender),
  3579   return set_or_delete_string_field (message,
  3605   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3639   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  3641   get_const_signature (&message->
header, &type_str, &type_pos);
  3643   return _dbus_string_get_const_data_len (type_str, type_pos, 0);
  3647 _dbus_message_has_type_interface_member (
DBusMessage *message,
  3667   if (n && strcmp (n, member) == 0)
  3671       if (n == 
NULL || strcmp (n, iface) == 0)
  3697   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3698   _dbus_return_val_if_fail (iface != 
NULL, 
FALSE);
  3699   _dbus_return_val_if_fail (method != 
NULL, 
FALSE);
  3704   return _dbus_message_has_type_interface_member (message,
  3723                         const char  *signal_name)
  3725   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3726   _dbus_return_val_if_fail (iface != 
NULL, 
FALSE);
  3727   _dbus_return_val_if_fail (signal_name != 
NULL, 
FALSE);
  3732   return _dbus_message_has_type_interface_member (message,
  3734                                                   iface, signal_name);
  3749                        const char  *error_name)
  3753   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3754   _dbus_return_val_if_fail (error_name != 
NULL, 
FALSE);
  3764   if (n && strcmp (n, error_name) == 0)
  3786   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3787   _dbus_return_val_if_fail (name != 
NULL, 
FALSE);
  3794   if (s && strcmp (s, name) == 0)
  3821   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3822   _dbus_return_val_if_fail (name != 
NULL, 
FALSE);
  3829   if (s && strcmp (s, name) == 0)
  3846                             const char    *signature)
  3850   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3851   _dbus_return_val_if_fail (signature != 
NULL, 
FALSE);
  3858   if (s && strcmp (s, signature) == 0)
  3892   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  3893   _dbus_return_val_if_error_is_set (error, 
FALSE);
  3904                   str ? 
"%s" : 
NULL, str);
  3918 #ifdef HAVE_UNIX_FD_PASSING  3921   return message->n_unix_fds > 0;
  3945 #define INITIAL_LOADER_DATA_LEN 32  3986 #ifdef HAVE_UNIX_FD_PASSING  3987   loader->unix_fds = 
NULL;
  3988   loader->n_unix_fds = loader->n_unix_fds_allocated = 0;
  3989   loader->unix_fds_outstanding = 
FALSE;
  4021 #ifdef HAVE_UNIX_FD_PASSING  4022       close_unix_fds(loader->unix_fds, &loader->n_unix_fds);
  4058   *buffer = &loader->
data;
  4095                                   unsigned           *max_n_fds)
  4097 #ifdef HAVE_UNIX_FD_PASSING  4116       loader->unix_fds = a;
  4120   *fds = loader->unix_fds + loader->n_unix_fds;
  4121   *max_n_fds = loader->n_unix_fds_allocated - loader->n_unix_fds;
  4123   loader->unix_fds_outstanding = 
TRUE;
  4146 #ifdef HAVE_UNIX_FD_PASSING  4148   _dbus_assert(loader->unix_fds + loader->n_unix_fds == fds);
  4149   _dbus_assert(loader->n_unix_fds + n_fds <= loader->n_unix_fds_allocated);
  4151   loader->n_unix_fds += n_fds;
  4152   loader->unix_fds_outstanding = 
FALSE;
  4154   if (n_fds && loader->unix_fds_change)
  4155     loader->unix_fds_change (loader->unix_fds_change_data);
  4191               int                fields_array_len,
  4200   dbus_uint32_t n_unix_fds = 0;
  4202   mode = DBUS_VALIDATION_MODE_DATA_IS_UNTRUSTED;
  4212   _dbus_assert ((header_len + body_len) <= _dbus_string_get_length (&loader->
data));
  4222                           _dbus_string_get_length (&loader->
data)))
  4224       _dbus_verbose (
"Failed to load header for new message code %d\n", validity);
  4243   if (mode != DBUS_VALIDATION_MODE_WE_TRUST_THIS_DATA_ABSOLUTELY)
  4245       get_const_signature (&message->
header, &type_str, &type_pos);
  4259           _dbus_verbose (
"Failed to validate message body code %d\n", validity);
  4274 #ifdef HAVE_UNIX_FD_PASSING  4276   if (n_unix_fds > loader->n_unix_fds)
  4278       _dbus_verbose(
"Message contains references to more unix fds than were sent %u != %u\n",
  4279                     n_unix_fds, loader->n_unix_fds);
  4292       message->unix_fds = 
_dbus_memdup(loader->unix_fds, n_unix_fds * 
sizeof(message->unix_fds[0]));
  4293       if (message->unix_fds == 
NULL)
  4295           _dbus_verbose (
"Failed to allocate file descriptor array\n");
  4300       message->n_unix_fds_allocated = message->n_unix_fds = n_unix_fds;
  4301       loader->n_unix_fds -= n_unix_fds;
  4302       memmove (loader->unix_fds, loader->unix_fds + n_unix_fds, loader->n_unix_fds * sizeof (loader->unix_fds[0]));
  4304       if (loader->unix_fds_change)
  4305         loader->unix_fds_change (loader->unix_fds_change_data);
  4308     message->unix_fds = 
NULL;
  4314       _dbus_verbose (
"Hmm, message claims to come with file descriptors "  4315                      "but that's not supported on our platform, disconnecting.\n");
  4328       _dbus_verbose (
"Failed to append new message to loader queue\n");
  4335                 (header_len + body_len));
  4339       _dbus_verbose (
"Failed to move body into new message\n");
  4352   _dbus_verbose (
"Loaded message %p\n", message);
  4399       int byte_order, fields_array_len, header_len, body_len;
  4408                                                _dbus_string_get_length (&loader->
data)))
  4414           message = dbus_message_new_empty_header ();
  4415           if (message == 
NULL)
  4418           if (!load_message (loader, message,
  4419                              byte_order, fields_array_len,
  4420                              header_len, body_len))
  4434           _dbus_verbose (
"Initial peek at header says we don't have a whole message yet, or data broken with invalid code %d\n",
  4549       _dbus_verbose (
"clamping requested max message size %ld to %d\n",
  4580       _dbus_verbose (
"clamping requested max message unix_fds %ld to %d\n",
  4607 #ifdef HAVE_UNIX_FD_PASSING  4608   return loader->n_unix_fds;
  4624                                                void (* callback) (
void *),
  4627 #ifdef HAVE_UNIX_FD_PASSING  4628   loader->unix_fds_change = callback;
  4629   loader->unix_fds_change_data = data;
  4671   _dbus_return_if_fail (*slot_p >= 0);
  4699   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
  4700   _dbus_return_val_if_fail (slot >= 0, 
FALSE);
  4704                                      slot, data, free_data_func,
  4705                                      &old_free_func, &old_data);
  4711         (* old_free_func) (old_data);
  4731   _dbus_return_val_if_fail (message != 
NULL, 
NULL);
  4756   if (strcmp (type_str, 
"method_call") == 0)
  4758   if (strcmp (type_str, 
"method_return") == 0)
  4760   else if (strcmp (type_str, 
"signal") == 0)
  4762   else if (strcmp (type_str, 
"error") == 0)
  4787       return "method_call";
  4789       return "method_return";
  4813                       char        **marshalled_data_p,
  4819   _dbus_return_val_if_fail (msg != 
NULL, 
FALSE);
  4820   _dbus_return_val_if_fail (marshalled_data_p != 
NULL, 
FALSE);
  4821   _dbus_return_val_if_fail (len_p != 
NULL, 
FALSE);
  4827   was_locked = msg->
locked;
  4835   *len_p = _dbus_string_get_length (&tmp);
  4840   *len_p = _dbus_string_get_length (&tmp);
  4882   _dbus_return_val_if_fail (str != 
NULL, 
NULL);
  4917   _DBUS_SET_OOM (error);
  4939   int byte_order, fields_array_len, header_len, body_len;
  4953                                           &validity, &byte_order,
  4963       _dbus_assert (have_message || (header_len + body_len) > len);
  4964       (void) have_message; 
  4965       return header_len + body_len;
  4998   _dbus_return_if_fail (message != 
NULL);
  4999   _dbus_return_if_fail (!message->
locked);
  5015   _dbus_return_val_if_fail (message != 
NULL, 
FALSE);
 dbus_bool_t dbus_type_is_fixed(int typecode)
Tells you whether values of this type can change length if you set them to some other value...
void _dbus_type_reader_read_fixed_multi(const DBusTypeReader *reader, void *value, int *n_elements)
Reads a block of fixed-length basic values, from the current point in an array to the end of the arra...
DBusValidity _dbus_validate_body_with_reason(const DBusString *expected_signature, int expected_signature_start, int byte_order, int *bytes_remaining, const DBusString *value_str, int value_pos, int len)
Verifies that the range of value_str from value_pos to value_end is a legitimate value of type expect...
int dbus_message_type_from_string(const char *type_str)
Utility function to convert a machine-readable (not translated) string into a D-Bus message type...
DBusMessage * dbus_message_ref(DBusMessage *message)
Increments the reference count of a DBusMessage. 
void dbus_message_lock(DBusMessage *message)
Locks a message. 
const char * message
public error message field 
dbus_bool_t dbus_message_has_path(DBusMessage *message, const char *path)
Checks if the message has a particular object path. 
dbus_uint32_t changed_stamp
Incremented when iterators are invalidated. 
#define NULL
A null pointer, defined appropriately for C or C++. 
dbus_bool_t dbus_message_is_method_call(DBusMessage *message, const char *iface, const char *method)
Checks whether the message is a method call with the given interface and member fields. 
dbus_bool_t _dbus_header_load(DBusHeader *header, DBusValidationMode mode, DBusValidity *validity, int byte_order, int fields_array_len, int header_len, int body_len, const DBusString *str, int start, int len)
Creates a message header from potentially-untrusted data. 
void(* DBusFreeFunction)(void *memory)
The type of a function which frees a block of memory. 
long _dbus_message_loader_get_max_message_size(DBusMessageLoader *loader)
Gets the maximum allowed message size in bytes. 
void dbus_message_set_no_reply(DBusMessage *message, dbus_bool_t no_reply)
Sets a flag indicating that the message does not want a reply; if this flag is set, the other end of the connection may (but is not required to) optimize by not sending method return or error replies. 
void _dbus_message_loader_putback_message_link(DBusMessageLoader *loader, DBusList *link)
Returns a popped message link, used to undo a pop. 
dbus_bool_t _dbus_header_copy(const DBusHeader *header, DBusHeader *dest)
Initializes dest with a copy of the given header. 
int dbus_message_iter_get_arg_type(DBusMessageIter *iter)
Returns the argument type of the argument that the message iterator points to. 
dbus_uint32_t sig_refcount
depth of open_signature() 
void _dbus_message_loader_return_buffer(DBusMessageLoader *loader, DBusString *buffer)
Returns a buffer obtained from _dbus_message_loader_get_buffer(), indicating to the loader how many b...
void _dbus_type_writer_remove_types(DBusTypeWriter *writer)
Removes type string from the writer. 
void * dbus_realloc(void *memory, size_t bytes)
Resizes a block of memory previously allocated by dbus_malloc() or dbus_malloc0(). 
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0(). 
void _dbus_message_loader_return_unix_fds(DBusMessageLoader *loader, int *fds, unsigned n_fds)
Returns a buffer obtained from _dbus_message_loader_get_unix_fds(). 
dbus_uint32_t dbus_message_get_serial(DBusMessage *message)
Returns the serial of a message or 0 if none has been specified. 
DBusList * messages
Complete messages. 
The type writer is an iterator for writing to a block of values. 
void dbus_message_iter_recurse(DBusMessageIter *iter, DBusMessageIter *sub)
Recurses into a container value when reading values from a message, initializing a sub-iterator to us...
void _dbus_type_reader_recurse(DBusTypeReader *reader, DBusTypeReader *sub)
Initialize a new reader pointing to the first type and corresponding value that's a child of the curr...
DBusMessage * _dbus_message_loader_pop_message(DBusMessageLoader *loader)
Pops a loaded message (passing ownership of the message to the caller). 
DBusList * _dbus_list_find_last(DBusList **list, void *data)
Finds a value in the list. 
dbus_bool_t dbus_message_set_interface(DBusMessage *message, const char *iface)
Sets the interface this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or the interface...
#define DBUS_ERROR_NOT_SUPPORTED
Requested operation isn't supported (like ENOSYS on UNIX). 
#define dbus_new(type, count)
Safe macro for using dbus_malloc(). 
void dbus_message_free_data_slot(dbus_int32_t *slot_p)
Deallocates a global ID for message data slots. 
#define DBUS_HEADER_FIELD_SIGNATURE
Header field code for the type signature of a message. 
const char * dbus_message_get_error_name(DBusMessage *message)
Gets the error name (DBUS_MESSAGE_TYPE_ERROR only) or NULL if none. 
dbus_bool_t dbus_message_iter_close_container(DBusMessageIter *iter, DBusMessageIter *sub)
Closes a container-typed value appended to the message; may write out more information to the message...
dbus_bool_t dbus_message_is_error(DBusMessage *message, const char *error_name)
Checks whether the message is an error reply with the given error name. 
void _dbus_list_remove_link(DBusList **list, DBusList *link)
Removes a link from the list. 
#define DBUS_TYPE_STRUCT
STRUCT and DICT_ENTRY are sort of special since their codes can't appear in a type string...
#define DBUS_TYPE_DICT_ENTRY
Type code used to represent a dict entry; however, this type code does not appear in type signatures...
const char * dbus_message_get_sender(DBusMessage *message)
Gets the unique name of the connection which originated this message, or NULL if unknown or inapplica...
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_message_iter_get_args_valist(DBusMessageIter *iter, DBusError *error, int first_arg_type, va_list var_args)
Implementation of the varargs arg-getting functions. 
#define DBUS_TYPE_STRING
Type code marking a UTF-8 encoded, nul-terminated Unicode string. 
DBusString body
Body network data. 
dbus_uint32_t _dbus_header_get_serial(DBusHeader *header)
See dbus_message_get_serial() 
dbus_bool_t _dbus_header_get_flag(DBusHeader *header, dbus_uint32_t flag)
Gets a message flag bit, returning TRUE if the bit is set. 
#define _dbus_assert(condition)
Aborts with an error message if the condition is false. 
#define DBUS_HEADER_FLAG_NO_REPLY_EXPECTED
If set, this flag means that the sender of a message does not care about getting a reply...
void _dbus_list_append_link(DBusList **list, DBusList *link)
Appends a link to the list. 
Internals of DBusCounter. 
dbus_bool_t dbus_message_allocate_data_slot(dbus_int32_t *slot_p)
Allocates an integer ID to be used for storing application-specific data on any DBusMessage. 
void * data
Data stored at this element. 
#define MAX_MESSAGE_CACHE_SIZE
Avoid caching too many messages. 
DBusMessage * dbus_message_new(int message_type)
Constructs a new message of the given message type. 
#define DBUS_ERROR_INCONSISTENT_MESSAGE
The message meta data does not match the payload. 
dbus_bool_t _dbus_header_init(DBusHeader *header)
Initializes a header, but doesn't prepare it for use; to make the header valid, you have to call _dbu...
void _dbus_warn_check_failed(const char *format,...)
Prints a "critical" warning to stderr when an assertion fails; differs from _dbus_warn primarily in t...
const char * dbus_message_get_signature(DBusMessage *message)
Gets the type signature of the message, i.e. 
void dbus_message_iter_init_append(DBusMessage *message, DBusMessageIter *iter)
Initializes a DBusMessageIter for appending arguments to the end of a message. 
void dbus_error_free(DBusError *error)
Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...
void dbus_message_set_auto_start(DBusMessage *message, dbus_bool_t auto_start)
Sets a flag indicating that an owner for the destination name will be automatically started before th...
union DBusMessageRealIter::@6 u
the type writer or reader that does all the work 
Layout of a DBusMessageIter on the stack in dbus 1.10.0. 
dbus_bool_t dbus_message_get_allow_interactive_authorization(DBusMessage *message)
Returns whether the flag controlled by dbus_message_set_allow_interactive_authorization() has been se...
void _dbus_message_loader_unref(DBusMessageLoader *loader)
Decrements the reference count of the loader and finalizes the loader when the count reaches zero...
DBusCounter * _dbus_counter_ref(DBusCounter *counter)
Increments refcount of the counter. 
dbus_bool_t dbus_message_has_interface(DBusMessage *message, const char *iface)
Checks if the message has an interface. 
DBusValidity _dbus_message_loader_get_corruption_reason(DBusMessageLoader *loader)
Checks what kind of bad data confused the loader. 
dbus_bool_t _dbus_type_writer_write_basic(DBusTypeWriter *writer, int type, const void *value)
Writes out a basic type. 
#define DBUS_MESSAGE_TYPE_ERROR
Message type of an error reply message, see dbus_message_get_type() 
DBusList * _dbus_list_alloc_link(void *data)
Allocates a linked list node. 
#define DBUS_MAXIMUM_MESSAGE_UNIX_FDS
The maximum total number of unix fds in a message. 
const char * dbus_message_get_path(DBusMessage *message)
Gets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitt...
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string. 
#define DBUS_MESSAGE_TYPE_METHOD_RETURN
Message type of a method return message, see dbus_message_get_type() 
DBusMessage * dbus_message_new_signal(const char *path, const char *iface, const char *name)
Constructs a new message representing a signal emission. 
_DBUS_STRING_DEFINE_STATIC(_dbus_empty_signature_str, "")
An static string representing an empty signature. 
dbus_bool_t _dbus_string_append_printf_valist(DBusString *str, const char *format, va_list args)
Appends a printf-style formatted string to the DBusString. 
int _dbus_dup(int fd, DBusError *error)
Duplicates a file descriptor. 
DBusTypeReader reader
reader 
DBusValidationMode
This is used rather than a bool for high visibility. 
dbus_bool_t dbus_message_iter_has_next(DBusMessageIter *iter)
Checks if an iterator has any more fields. 
DBusMessage * message
Message used. 
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that's copied to the d...
#define DBUS_HEADER_FIELD_INTERFACE
Header field code for the interface containing a member (method or signal). 
#define DBUS_DICT_ENTRY_BEGIN_CHAR
Code marking the start of a dict entry type in a type signature. 
DBusList * _dbus_list_pop_first_link(DBusList **list)
Removes the first link in the list and returns it. 
dbus_bool_t dbus_message_has_member(DBusMessage *message, const char *member)
Checks if the message has an interface member. 
DBusValidity
This is primarily used in unit testing, so we can verify that each invalid message is invalid for the...
DBusMessageIter struct; contains no public fields. 
dbus_bool_t dbus_message_iter_init(DBusMessage *message, DBusMessageIter *iter)
Initializes a DBusMessageIter for reading the arguments of the message passed in. ...
dbus_bool_t _dbus_message_add_counter(DBusMessage *message, DBusCounter *counter)
Adds a counter to be incremented immediately with the size/unix fds of this message, and decremented by the size/unix fds of this message when this message if finalized. 
const char * dbus_message_get_destination(DBusMessage *message)
Gets the destination of a message or NULL if there is none set. 
void _dbus_message_add_counter_link(DBusMessage *message, DBusList *link)
Adds a counter to be incremented immediately with the size/unix fds of this message, and decremented by the size/unix fds of this message when this message if finalized. 
#define DBUS_TYPE_ARRAY
Type code marking a D-Bus array type. 
DBusString * type_str
where to write typecodes (or read type expectations) 
dbus_bool_t dbus_message_iter_append_fixed_array(DBusMessageIter *iter, int element_type, const void *value, int n_elements)
Appends a block of fixed-length values to an array. 
dbus_bool_t dbus_message_set_error_name(DBusMessage *message, const char *error_name)
Sets the name of the error (DBUS_MESSAGE_TYPE_ERROR). 
const char * dbus_message_get_member(DBusMessage *message)
Gets the interface member being invoked (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted (DBUS_MESSAGE_TYPE...
dbus_bool_t _dbus_list_remove_last(DBusList **list, void *data)
Removes a value from the list. 
Internals of DBusMessage. 
Internals of DBusMessageIter. 
#define dbus_new0(type, count)
Safe macro for using dbus_malloc0(). 
dbus_uint32_t changed_stamp
stamp to detect invalid iters 
void _dbus_type_writer_init_types_delayed(DBusTypeWriter *writer, int byte_order, DBusString *value_str, int value_pos)
Initialize a write iterator, with the signature to be provided later. 
dbus_bool_t _dbus_string_compact(DBusString *str, int max_waste)
Compacts the string to avoid wasted memory. 
int _dbus_header_get_message_type(DBusHeader *header)
Gets the type of the message. 
#define DBUS_HEADER_FIELD_ERROR_NAME
Header field code for an error name (found in DBUS_MESSAGE_TYPE_ERROR messages). 
#define DBUS_MINIMUM_HEADER_SIZE
The smallest header size that can occur. 
dbus_bool_t _dbus_type_writer_unrecurse(DBusTypeWriter *writer, DBusTypeWriter *sub)
Closes a container created by _dbus_type_writer_recurse() and writes any additional information to th...
dbus_bool_t dbus_type_is_basic(int typecode)
A "basic type" is a somewhat arbitrary concept, but the intent is to include those types that are ful...
void _dbus_message_loader_set_max_message_size(DBusMessageLoader *loader, long size)
Sets the maximum size message we allow. 
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE. 
void _dbus_string_init_const(DBusString *str, const char *value)
Initializes a constant string. 
DBusHeader header
Header network data and associated cache. 
dbus_bool_t dbus_message_set_sender(DBusMessage *message, const char *sender)
Sets the message sender. 
dbus_bool_t dbus_message_is_signal(DBusMessage *message, const char *iface, const char *signal_name)
Checks whether the message is a signal with the given interface and member fields. 
DBusString data
Buffered data. 
void _dbus_type_reader_read_basic(const DBusTypeReader *reader, void *value)
Reads a basic-typed value, as with _dbus_marshal_read_basic(). 
unsigned int locked
Message being sent, no modifications allowed. 
#define ensure_byte_order(message)
byte-swap the message if it doesn't match our byte order. 
DBusMessageLoader * _dbus_message_loader_ref(DBusMessageLoader *loader)
Increments the reference count of the loader. 
dbus_bool_t _dbus_header_get_field_basic(DBusHeader *header, int field, int type, void *value)
Gets the value of a field with basic type. 
dbus_bool_t dbus_message_get_path_decomposed(DBusMessage *message, char ***path)
Gets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitt...
can't determine validity due to OOM 
void _dbus_warn(const char *format,...)
Prints a warning message to stderr. 
void _dbus_string_delete(DBusString *str, int start, int len)
Deletes a segment of a DBusString with length len starting at start. 
dbus_bool_t _dbus_string_init_preallocated(DBusString *str, int allocate_size)
Initializes a string that can be up to the given allocation size before it has to realloc...
void _dbus_counter_unref(DBusCounter *counter)
Decrements refcount of the counter and possibly finalizes the counter. 
dbus_int32_t _dbus_atomic_inc(DBusAtomic *atomic)
Atomically increments an integer. 
void _dbus_message_remove_counter(DBusMessage *message, DBusCounter *counter)
Removes a counter tracking the size/unix fds of this message, and decrements the counter by the size/...
dbus_bool_t _dbus_list_append(DBusList **list, void *data)
Appends a value to the list. 
dbus_bool_t _dbus_decompose_path(const char *data, int len, char ***path, int *path_len)
Decompose an object path. 
void * _dbus_memdup(const void *mem, size_t n_bytes)
Duplicates a block of memory. 
dbus_bool_t _dbus_data_slot_list_set(DBusDataSlotAllocator *allocator, DBusDataSlotList *list, int slot, void *data, DBusFreeFunction free_data_func, DBusFreeFunction *old_free_func, void **old_data)
Stores a pointer in the data slot list, along with an optional function to be used for freeing the da...
dbus_bool_t dbus_message_set_path(DBusMessage *message, const char *object_path)
Sets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or the one a s...
void _dbus_list_foreach(DBusList **list, DBusForeachFunction function, void *data)
Calls the given function for each element in the list. 
long max_message_size
Maximum size of a message. 
void _dbus_counter_adjust_unix_fd(DBusCounter *counter, long delta)
Adjusts the value of the unix fd counter by the given delta which may be positive or negative...
dbus_bool_t _dbus_type_reader_next(DBusTypeReader *reader)
Skip to the next value on this "level". 
DBusList * counters
0-N DBusCounter used to track message size/unix fds. 
DBusMessageLoader * _dbus_message_loader_new(void)
Creates a new message loader. 
long size_counter_delta
Size we incremented the size counters by. 
#define CHANGED_STAMP_BITS
How many bits are in the changed_stamp used to validate iterators. 
void _dbus_header_byteswap(DBusHeader *header, int new_order)
Swaps the header into the given order if required. 
dbus_bool_t _dbus_header_have_message_untrusted(int max_message_length, DBusValidity *validity, int *byte_order, int *fields_array_len, int *header_len, int *body_len, const DBusString *str, int start, int len)
Given data long enough to contain the length of the message body and the fields array, check whether the data is long enough to contain the entire message (assuming the claimed lengths are accurate). 
#define DBUS_MESSAGE_TYPE_METHOD_CALL
Message type of a method call message, see dbus_message_get_type() 
#define DBUS_HEADER_FIELD_UNIX_FDS
Header field code for the number of unix file descriptors associated with this message. 
int _dbus_current_generation
_dbus_current_generation is used to track each time that dbus_shutdown() is called, so we can reinit things after it's been called. 
dbus_bool_t dbus_message_get_args(DBusMessage *message, DBusError *error, int first_arg_type,...)
Gets arguments from a message given a variable argument list. 
Object representing an exception. 
unsigned int in_cache
Has been "freed" since it's in the cache (this is a debug feature) 
int dbus_message_iter_get_element_count(DBusMessageIter *iter)
Returns the number of elements in the array-typed value pointed to by the iterator. 
void * _dbus_list_pop_first(DBusList **list)
Removes the first value in the list and returns it. 
#define DBUS_TYPE_SIGNATURE
Type code marking a D-Bus type signature. 
void _dbus_message_loader_set_pending_fds_function(DBusMessageLoader *loader, void(*callback)(void *), void *data)
Register a function to be called whenever the number of pending file descriptors in the loader change...
dbus_bool_t dbus_message_append_args(DBusMessage *message, int first_arg_type,...)
Appends fields to a message given a variable argument list. 
#define DBUS_MESSAGE_TYPE_SIGNAL
Message type of a signal message, see dbus_message_get_type() 
void dbus_set_error(DBusError *error, const char *name, const char *format,...)
Assigns an error name and message to a DBusError. 
dbus_uint32_t dbus_message_get_reply_serial(DBusMessage *message)
Returns the serial that the message is a reply to or 0 if none. 
#define INITIAL_LOADER_DATA_LEN
The initial buffer size of the message loader. 
dbus_bool_t dbus_message_has_signature(DBusMessage *message, const char *signature)
Checks whether the message has the given signature; see dbus_message_get_signature() for more details...
void _dbus_data_slot_list_clear(DBusDataSlotList *list)
Frees all data slots contained in the list, calling application-provided free functions if they exist...
dbus_bool_t _dbus_message_loader_get_is_corrupted(DBusMessageLoader *loader)
Checks whether the loader is confused due to bad data. 
#define DBUS_TYPE_VARIANT
Type code marking a D-Bus variant type. 
#define DBUS_TYPE_UINT32
Type code marking a 32-bit unsigned integer. 
void _dbus_header_reinit(DBusHeader *header)
Re-initializes a header that was previously initialized and never freed. 
DBusMessage * dbus_message_new_method_call(const char *destination, const char *path, const char *iface, const char *method)
Constructs a new message to invoke a method on a remote object. 
#define DBUS_HEADER_FIELD_DESTINATION
Header field code for the destination bus name of a message. 
dbus_uint32_t byte_order
byte order of the block 
dbus_bool_t _dbus_header_delete_field(DBusHeader *header, int field)
Deletes a field, if it exists. 
dbus_bool_t dbus_message_has_destination(DBusMessage *message, const char *name)
Checks whether the message was sent to the given name. 
#define DBUS_MESSAGE_TYPE_INVALID
This value is never a valid message type, see dbus_message_get_type() 
#define DBUS_HEADER_FLAG_ALLOW_INTERACTIVE_AUTHORIZATION
If set on a method call, this flag means that the caller is prepared to wait for interactive authoriz...
dbus_bool_t dbus_message_get_auto_start(DBusMessage *message)
Returns TRUE if the message will cause an owner for destination name to be auto-started. 
dbus_uint32_t byte_order
byte order to write values with 
#define _DBUS_UNLOCK(name)
Unlocks a global lock. 
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init(). 
The type reader is an iterator for reading values from a block of values. 
void * _dbus_data_slot_list_get(DBusDataSlotAllocator *allocator, DBusDataSlotList *list, int slot)
Retrieves data previously set with _dbus_data_slot_list_set_data(). 
long _dbus_message_loader_get_max_message_unix_fds(DBusMessageLoader *loader)
Gets the maximum allowed number of unix fds per message. 
#define TRUE
Expands to "1". 
dbus_bool_t dbus_message_marshal(DBusMessage *msg, char **marshalled_data_p, int *len_p)
Turn a DBusMessage into the marshalled form as described in the D-Bus specification. 
dbus_bool_t _dbus_header_set_field_basic(DBusHeader *header, int field, int type, const void *value)
Sets the value of a field with basic type. 
void _dbus_data_slot_list_init(DBusDataSlotList *list)
Initializes a slot list. 
#define _dbus_assert_not_reached(explanation)
Aborts with an error message if called. 
DBusMessage * dbus_message_copy(const DBusMessage *message)
Creates a new message that is an exact replica of the message specified, except that its refcount is ...
int dbus_message_iter_get_element_type(DBusMessageIter *iter)
Returns the element type of the array that the message iterator points to. 
void _dbus_message_get_network_data(DBusMessage *message, const DBusString **header, const DBusString **body)
Gets the data to be sent over the network for this message. 
#define DBUS_HEADER_FIELD_MEMBER
Header field code for a member (method or signal). 
long max_message_unix_fds
Maximum unix fds in a message. 
unsigned int corrupted
We got broken data, and are no longer working. 
dbus_bool_t dbus_message_get_args_valist(DBusMessage *message, DBusError *error, int first_arg_type, va_list var_args)
Like dbus_message_get_args but takes a va_list for use by language bindings. 
#define DBUS_HEADER_FIELD_SENDER
Header field code for the sender of a message; usually initialized by the message bus...
void _dbus_type_writer_add_types(DBusTypeWriter *writer, DBusString *type_str, int type_pos)
Adds type string to the writer, if it had none. 
#define DBUS_TYPE_OBJECT_PATH
Type code marking a D-Bus object path. 
dbus_bool_t dbus_set_error_from_message(DBusError *error, DBusMessage *message)
Sets a DBusError based on the contents of the given message. 
DBusMessage * dbus_message_demarshal(const char *str, int len, DBusError *error)
Demarshal a D-Bus message from the format described in the D-Bus specification. 
void dbus_message_iter_get_fixed_array(DBusMessageIter *iter, void *value, int *n_elements)
Reads a block of fixed-length values from the message iterator. 
#define DBUS_TYPE_UNIX_FD
Type code marking a unix file descriptor. 
dbus_bool_t _dbus_header_create(DBusHeader *header, int byte_order, int message_type, const char *destination, const char *path, const char *interface, const char *member, const char *error_name)
Fills in the primary fields of the header, so the header is ready for use. 
const char * dbus_message_get_interface(DBusMessage *message)
Gets the interface this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted...
An allocator that tracks a set of slot IDs. 
#define DBUS_TYPE_INVALID
Type code that is never equal to a legitimate type code. 
dbus_bool_t dbus_message_set_reply_serial(DBusMessage *message, dbus_uint32_t reply_serial)
Sets the reply serial of a message (the serial of the message this is a reply to). 
void _dbus_counter_notify(DBusCounter *counter)
Calls the notify function from _dbus_counter_set_notify(), if that function has been specified and th...
dbus_bool_t dbus_message_has_sender(DBusMessage *message, const char *name)
Checks whether the message has the given unique name as its sender. 
dbus_bool_t dbus_message_iter_next(DBusMessageIter *iter)
Moves the iterator to the next field, if any. 
void dbus_message_iter_get_basic(DBusMessageIter *iter, void *value)
Reads a basic-typed value from the message iterator. 
void * dbus_message_get_data(DBusMessage *message, dbus_int32_t slot)
Retrieves data previously set with dbus_message_set_data(). 
void _dbus_type_reader_init(DBusTypeReader *reader, int byte_order, const DBusString *type_str, int type_pos, const DBusString *value_str, int value_pos)
Initializes a type reader. 
void _dbus_header_free(DBusHeader *header)
Frees a header. 
DBusList * _dbus_message_loader_pop_message_link(DBusMessageLoader *loader)
Pops a loaded message inside a list link (passing ownership of the message and link to the caller)...
#define DBUS_MAXIMUM_ARRAY_LENGTH
Max length of a marshaled array in bytes (64M, 2^26) We use signed int for lengths so must be INT_MAX...
dbus_bool_t dbus_message_set_destination(DBusMessage *message, const char *destination)
Sets the message's destination. 
void dbus_error_init(DBusError *error)
Initializes a DBusError structure. 
dbus_int32_t _dbus_atomic_dec(DBusAtomic *atomic)
Atomically decrement an integer. 
DBusAtomic refcount
Reference count. 
dbus_bool_t dbus_message_get_no_reply(DBusMessage *message)
Returns TRUE if the message does not expect a reply. 
dbus_bool_t _dbus_message_loader_get_unix_fds(DBusMessageLoader *loader, int **fds, unsigned *max_n_fds)
Gets the buffer to use for reading unix fds from the network. 
void dbus_free_string_array(char **str_array)
Frees a NULL-terminated array of strings. 
#define DBUS_TYPE_BOOLEAN
Type code marking a boolean. 
void _dbus_message_loader_get_buffer(DBusMessageLoader *loader, DBusString **buffer)
Gets the buffer to use for reading data from the network. 
dbus_bool_t _dbus_string_append_len(DBusString *str, const char *buffer, int len)
Appends block of bytes with the given length to a DBusString. 
dbus_uint32_t iter_type
whether this is a reader or writer iter 
void _dbus_header_set_serial(DBusHeader *header, dbus_uint32_t serial)
Sets the serial number of a header. 
int _dbus_type_reader_get_element_type(const DBusTypeReader *reader)
Gets the type of an element of the array the reader is currently pointing to. 
char _dbus_header_get_byte_order(const DBusHeader *header)
Returns the header's byte order. 
dbus_bool_t dbus_message_iter_open_container(DBusMessageIter *iter, int type, const char *contained_signature, DBusMessageIter *sub)
Appends a container-typed value to the message; you are required to append the contents of the contai...
dbus_bool_t _dbus_type_reader_has_next(const DBusTypeReader *reader)
Check whether there's another value on this "level". 
A simple value union that lets you access bytes as if they were various types; useful when dealing wi...
dbus_uint32_t container_type
what are we inside? (e.g. 
int _dbus_type_reader_get_array_length(const DBusTypeReader *reader)
Returns the number of bytes in the array. 
dbus_bool_t _dbus_header_get_field_raw(DBusHeader *header, int field, const DBusString **str, int *pos)
Gets the raw marshaled data for a field. 
dbus_bool_t dbus_message_iter_append_basic(DBusMessageIter *iter, int type, const void *value)
Appends a basic-typed value to the message. 
dbus_bool_t _dbus_close(int fd, DBusError *error)
Closes a file descriptor. 
int dbus_message_iter_get_array_len(DBusMessageIter *iter)
Returns the number of bytes in the array as marshaled in the wire protocol. 
void(* DBusForeachFunction)(void *element, void *data)
Used to iterate over each item in a collection, such as a DBusList. 
int _dbus_type_reader_get_current_type(const DBusTypeReader *reader)
Gets the type of the value the reader is currently pointing to; or for a types-only reader gets the t...
#define FALSE
Expands to "0". 
void dbus_message_set_allow_interactive_authorization(DBusMessage *message, dbus_bool_t allow)
Sets a flag indicating that the caller of the method is prepared to wait for interactive authorizatio...
#define DBUS_HEADER_FIELD_PATH
Header field code for the path - the path is the object emitting a signal or the object receiving a m...
int dbus_message_get_type(DBusMessage *message)
Gets the type of a message. 
#define DBUS_HEADER_FIELD_REPLY_SERIAL
Header field code for a reply serial, used to match a DBUS_MESSAGE_TYPE_METHOD_RETURN message with th...
unsigned int buffer_outstanding
Someone is using the buffer to read. 
int generation
_dbus_current_generation when message was created 
void _dbus_list_prepend_link(DBusList **list, DBusList *link)
Prepends a link to the list. 
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string. 
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_register_shutdown_func(DBusShutdownFunction function, void *data)
Register a cleanup function to be called exactly once the next time dbus_shutdown() is called...
#define _DBUS_LOCK(name)
Locks a global lock, initializing it first if necessary. 
#define _DBUS_LOCK_NAME(name)
Expands to name of a global lock variable. 
const char * _dbus_type_to_string(int typecode)
Returns a string describing the given type. 
DBusMessage * _dbus_message_loader_peek_message(DBusMessageLoader *loader)
Peeks at first loaded message, returns NULL if no messages have been queued. 
dbus_bool_t _dbus_string_copy_len(const DBusString *source, int start, int len, DBusString *dest, int insert_at)
Like _dbus_string_copy(), but can copy a segment from the middle of the source string. 
dbus_bool_t _dbus_string_steal_data(DBusString *str, char **data_return)
Like _dbus_string_get_data(), but removes the gotten data from the original string. 
void _dbus_type_reader_get_signature(const DBusTypeReader *reader, const DBusString **str_p, int *start_p, int *len_p)
Gets the string and range of said string containing the signature of the current value. 
dbus_bool_t dbus_message_append_args_valist(DBusMessage *message, int first_arg_type, va_list var_args)
Like dbus_message_append_args() but takes a va_list for use by language bindings. ...
int dbus_message_demarshal_bytes_needed(const char *buf, int len)
Returns the number of bytes required to be in the buffer to demarshal a D-Bus message. 
dbus_int32_t _dbus_atomic_get(DBusAtomic *atomic)
Atomically get the value of an integer. 
char * dbus_message_iter_get_signature(DBusMessageIter *iter)
Returns the current signature of a message iterator. 
dbus_bool_t _dbus_type_writer_write_fixed_multi(DBusTypeWriter *writer, int element_type, const void *value, int n_elements)
Writes a block of fixed-length basic values, i.e. 
void dbus_message_iter_abandon_container(DBusMessageIter *iter, DBusMessageIter *sub)
Abandons creation of a contained-typed value and frees resources created by dbus_message_iter_open_co...
DBUS_PRIVATE_EXPORT void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log. 
dbus_bool_t _dbus_data_slot_allocator_alloc(DBusDataSlotAllocator *allocator, dbus_int32_t *slot_id_p)
Allocates an integer ID to be used for storing data in a DBusDataSlotList. 
dbus_bool_t dbus_message_contains_unix_fds(DBusMessage *message)
Checks whether a message contains unix fds. 
#define DBUS_HEADER_FLAG_NO_AUTO_START
If set, this flag means that even if the message bus knows how to start an owner for the destination ...
dbus_bool_t _dbus_message_loader_queue_messages(DBusMessageLoader *loader)
Converts buffered data into messages, if we have enough data. 
void _dbus_message_get_unix_fds(DBusMessage *message, const int **fds, unsigned *n_fds)
Gets the unix fds to be sent over the network for this message. 
int refcount
Reference count. 
char * _dbus_strdup(const char *str)
Duplicates a string. 
#define MAX_MESSAGE_SIZE_TO_CACHE
Avoid caching huge messages. 
const char * _dbus_getenv(const char *varname)
Wrapper for getenv(). 
#define DBUS_ERROR_INVALID_ARGS
Invalid arguments passed to a method call. 
void _dbus_data_slot_allocator_free(DBusDataSlotAllocator *allocator, dbus_int32_t *slot_id_p)
Deallocates an ID previously allocated with _dbus_data_slot_allocator_alloc(). 
int _dbus_type_get_alignment(int typecode)
Gets the alignment requirement for the given type; will be 1, 4, or 8. 
DBusValidity corruption_reason
why we were corrupted 
void _dbus_message_loader_set_max_message_unix_fds(DBusMessageLoader *loader, long n)
Sets the maximum unix fds per message we allow. 
dbus_bool_t dbus_message_set_member(DBusMessage *message, const char *member)
Sets the interface member being invoked (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted (DBUS_MESSAGE_TYPE...
const char * dbus_message_type_to_string(int type)
Utility function to convert a D-Bus message type into a machine-readable string (not translated)...
void dbus_message_unref(DBusMessage *message)
Decrements the reference count of a DBusMessage, freeing the message if the count reaches 0...
void _dbus_string_init_const_len(DBusString *str, const char *value, int len)
Initializes a constant string with a length. 
Implementation details of DBusMessageLoader. 
dbus_bool_t _dbus_type_writer_recurse(DBusTypeWriter *writer, int container_type, const DBusString *contained_type, int contained_type_start, DBusTypeWriter *sub)
Opens a new container and writes out the initial information for that container. 
dbus_uint32_t u32
as int32 
DBusMessage * dbus_message_new_error_printf(DBusMessage *reply_to, const char *error_name, const char *error_format,...)
Creates a new message that is an error reply to another message, allowing you to use printf formattin...
dbus_bool_t dbus_message_set_data(DBusMessage *message, dbus_int32_t slot, void *data, DBusFreeFunction free_data_func)
Stores a pointer on a DBusMessage, along with an optional function to be used for freeing the data wh...
void dbus_message_set_serial(DBusMessage *message, dbus_uint32_t serial)
Sets the serial number of a message. 
void _dbus_header_toggle_flag(DBusHeader *header, dbus_uint32_t flag, dbus_bool_t value)
Toggles a message flag bit, turning on the bit if value = TRUE and flipping it off if value = FALSE...
void _dbus_header_update_lengths(DBusHeader *header, int body_len)
Fills in the correct body length. 
DBusMessage * dbus_message_new_method_return(DBusMessage *method_call)
Constructs a message that is a reply to a method call. 
DBusTypeWriter writer
writer 
void _dbus_data_slot_list_free(DBusDataSlotList *list)
Frees the data slot list and all data slots contained in it, calling application-provided free functi...
#define DBUS_MAXIMUM_MESSAGE_LENGTH
The maximum total message size including header and body; similar rationale to max array size...
DBusDataSlotList slot_list
Data stored by allocated integer ID. 
void _dbus_list_clear(DBusList **list)
Frees all links in the list and sets the list head to NULL. 
void _dbus_marshal_byteswap(const DBusString *signature, int signature_start, int old_byte_order, int new_byte_order, DBusString *value_str, int value_pos)
Byteswaps the marshaled data in the given value_str. 
int _dbus_message_loader_get_pending_fds_count(DBusMessageLoader *loader)
Return how many file descriptors are pending in the loader. 
dbus_bool_t dbus_type_is_container(int typecode)
A "container type" can contain basic types, or nested container types. 
DBusMessage * dbus_message_new_error(DBusMessage *reply_to, const char *error_name, const char *error_message)
Creates a new message that is an error reply to another message. 
void _dbus_counter_adjust_size(DBusCounter *counter, long delta)
Adjusts the value of the size counter by the given delta which may be positive or negative...