/**
* Reads (and optionally writes) a uuid to a file. Initializes the uuid
* unless an error is returned.
*
* @param filename the name of the file
* @param uuid uuid to be initialized with the loaded uuid
* @param create_if_not_found #TRUE to create a new uuid and save it if the file doesn't exist
* @param error the error return
* @returns #FALSE if the error is set
*/
dbus_bool_t
_dbus_read_uuid_file (const DBusString *filename,
DBusGUID *uuid,
dbus_bool_t create_if_not_found,
DBusError *error)
{
DBusError read_error = DBUS_ERROR_INIT;
if (_dbus_read_uuid_file_without_creating (filename, uuid, &read_error))
return TRUE;
if (!create_if_not_found)
{
dbus_move_error (&read_error, error);
return FALSE;
}
/* If the file exists and contains junk, we want to keep that error
* message instead of overwriting it with a "file exists" error
* message when we try to write
*/
if (dbus_error_has_name (&read_error, DBUS_ERROR_INVALID_FILE_CONTENT))
{
dbus_move_error (&read_error, error);
return FALSE;
}
else
{
dbus_error_free (&read_error);
return _dbus_create_uuid_file_exclusively (filename, uuid, error);
}
}
int main()
{
DBusError src;
DBusError dest;
char err[] = "Sample Error0";
dbus_error_init(&src);
dbus_error_init(&dest);
dbus_set_error(&src, err, NULL);
dbus_move_error(&src, &dest);
if(!CheckMovedError(&src, &dest, err))
{
std_log(LOG_FILENAME_LINE, "Test Fail");
dbus_error_free(&src);
dbus_error_free(&dest);
create_xml(1);
return 1;
}
else
{
std_log(LOG_FILENAME_LINE, "Test Successful");
dbus_error_free(&dest);
create_xml(0);
return 0;
}
}
Error::Error( DBusError* error )
: Dbg::Error( NULL )
{
dbus_move_error(error, &_error);
#ifdef _DEBUG
if( is_set() ) cbus_dbg("error %s: %s",name(), message() );
#endif
}
int main()
{
DBusError src;
DBusError dest;
char str[] = "Sample Error No.";
int no = 1;
char err[] = "Sample Error0";
dbus_error_init(&src);
dbus_error_init(&dest);
dbus_set_error(&src, err, "This is %s :: %d", str, no);
dbus_move_error(&src, &dest);
if(!CheckMovedError(&src, &dest, err))
{
std_log(LOG_FILENAME_LINE, "Test Fail");
dbus_error_free(&src);
dbus_error_free(&dest);
create_xml(1);
return 1;
}
else
{
if(strcmp("This is Sample Error No. :: 1", dest.message))
{
std_log(LOG_FILENAME_LINE, "Destination Message is not set Properly.");
dbus_error_free(&src);
dbus_error_free(&dest);
create_xml(1);
return 1;
}
if(src.message)
{
std_log(LOG_FILENAME_LINE, "Source Message is not NULL.");
dbus_error_free(&src);
dbus_error_free(&dest);
create_xml(1);
return 1;
}
dbus_error_free(&dest);
std_log(LOG_FILENAME_LINE, "Test Successful");
create_xml(0);
return 0;
}
}
DBusConnection *dsme_dbus_get_connection(DBusError *error)
{
DBusError err = DBUS_ERROR_INIT;
DBusConnection *con = dsme_dbus_try_to_connect(&err);
if( !con ) {
if( error )
dbus_move_error(&err, error);
else
dsme_log(LOG_DEBUG, "dbus_bus_get(): %s\n", err.message);
}
dbus_error_free(&err);
// NOTE: returns null or new reference
return con;
}
static void
cb_method_call(void *data, DBusMessage *msg, DBusError *err)
{
E_DBus_Callback *cb = data;
void *method_return = NULL;
DBusError new_err;
if (!cb) return;
dbus_error_init(&new_err);
if (!dbus_error_is_set(err))
method_return = e_dbus_callback_unmarshal(cb, msg, &new_err);
else
dbus_move_error(err, &new_err);
e_dbus_callback_call(cb, method_return, &new_err);
e_dbus_callback_return_free(cb, method_return);
if (dbus_error_is_set(&new_err))
dbus_error_free(&new_err);
e_dbus_callback_free(cb);
}
static BusDesktopFile *
desktop_file_for_name (BusConfigParser *parser,
const char *name,
DBusError *error)
{
BusDesktopFile *desktop_file;
DBusList **service_dirs;
DBusList *link;
DBusError tmp_error;
DBusString full_path;
DBusString filename;
const char *dir;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
desktop_file = NULL;
if (!_dbus_string_init (&filename))
{
BUS_SET_OOM (error);
goto out_all;
}
if (!_dbus_string_init (&full_path))
{
BUS_SET_OOM (error);
goto out_filename;
}
if (!_dbus_string_append (&filename, name) ||
!_dbus_string_append (&filename, ".service"))
{
BUS_SET_OOM (error);
goto out;
}
service_dirs = bus_config_parser_get_service_dirs (parser);
for (link = _dbus_list_get_first_link (service_dirs);
link != NULL;
link = _dbus_list_get_next_link (service_dirs, link))
{
dir = link->data;
_dbus_verbose ("Looking at '%s'\n", dir);
dbus_error_init (&tmp_error);
/* clear the path from last time */
_dbus_string_set_length (&full_path, 0);
/* build the full path */
if (!_dbus_string_append (&full_path, dir) ||
!_dbus_concat_dir_and_file (&full_path, &filename))
{
BUS_SET_OOM (error);
goto out;
}
_dbus_verbose ("Trying to load file '%s'\n", _dbus_string_get_data (&full_path));
desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
if (desktop_file == NULL)
{
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
_dbus_verbose ("Could not load %s: %s: %s\n",
_dbus_string_get_const_data (&full_path),
tmp_error.name, tmp_error.message);
/* we may have failed if the file is not found; this is not fatal */
if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
{
dbus_move_error (&tmp_error, error);
/* we only bail out on OOM */
goto out;
}
dbus_error_free (&tmp_error);
}
/* did we find the desktop file we want? */
if (desktop_file != NULL)
break;
}
/* Didn't find desktop file; set error */
if (desktop_file == NULL)
{
dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_NOT_FOUND,
"The name %s was not provided by any .service files",
name);
}
out:
_dbus_string_free (&full_path);
out_filename:
_dbus_string_free (&filename);
out_all:
return desktop_file;
}
/**
* Try to open a new transport for the given address entry. (This
* opens a client-side-of-the-connection transport.)
*
* @param entry the address entry
* @param error location to store reason for failure.
* @returns new transport of #NULL on failure.
*/
DBusTransport*
_dbus_transport_open (DBusAddressEntry *entry,
DBusError *error)
{
DBusTransport *transport;
const char *expected_guid_orig;
char *expected_guid;
int i;
DBusError tmp_error = DBUS_ERROR_INIT;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
transport = NULL;
expected_guid_orig = dbus_address_entry_get_value (entry, "guid");
expected_guid = _dbus_strdup (expected_guid_orig);
if (expected_guid_orig != NULL && expected_guid == NULL)
{
_DBUS_SET_OOM (error);
return NULL;
}
for (i = 0; i < (int) _DBUS_N_ELEMENTS (open_funcs); ++i)
{
DBusTransportOpenResult result;
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
result = (* open_funcs[i].func) (entry, &transport, &tmp_error);
switch (result)
{
case DBUS_TRANSPORT_OPEN_OK:
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
goto out;
break;
case DBUS_TRANSPORT_OPEN_NOT_HANDLED:
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
/* keep going through the loop of open funcs */
break;
case DBUS_TRANSPORT_OPEN_BAD_ADDRESS:
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
goto out;
break;
case DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT:
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
goto out;
break;
}
}
out:
if (transport == NULL)
{
if (!dbus_error_is_set (&tmp_error))
_dbus_set_bad_address (&tmp_error,
NULL, NULL,
"Unknown address type (examples of valid types are \"tcp\" and on UNIX \"unix\")");
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
dbus_move_error(&tmp_error, error);
dbus_free (expected_guid);
}
else
{
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
/* In the case of autostart the initial guid is NULL
* and the autostart transport recursively calls
* _dbus_open_transport wich returns a transport
* with a guid. That guid is the definitive one.
*
* FIXME: if more transports are added they may have
* an effect on the expected_guid semantics (i.e.
* expected_guid and transport->expected_guid may
* both have values). This is very unlikely though
* we should either throw asserts here for those
* corner cases or refactor the code so it is
* clearer on what is expected and what is not
*/
if(expected_guid)
transport->expected_guid = expected_guid;
}
return transport;
}
/**
* Listens for new connections on the given address. If there are
* multiple semicolon-separated address entries in the address, tries
* each one and listens on the first one that works.
*
* Returns #NULL and sets error if listening fails for any reason.
* Otherwise returns a new #DBusServer.
* dbus_server_set_new_connection_function(),
* dbus_server_set_watch_functions(), and
* dbus_server_set_timeout_functions() should be called immediately to
* render the server fully functional.
*
* To free the server, applications must call first
* dbus_server_disconnect() and then dbus_server_unref().
*
* @param address the address of this server.
* @param error location to store reason for failure.
* @returns a new #DBusServer, or #NULL on failure.
*
*/
DBusServer*
dbus_server_listen (const char *address,
DBusError *error)
{
DBusServer *server;
DBusAddressEntry **entries;
int len, i;
DBusError first_connect_error = DBUS_ERROR_INIT;
dbus_bool_t handled_once;
_dbus_return_val_if_fail (address != NULL, NULL);
_dbus_return_val_if_error_is_set (error, NULL);
if (!dbus_parse_address (address, &entries, &len, error))
return NULL;
server = NULL;
handled_once = FALSE;
for (i = 0; i < len; i++)
{
int j;
for (j = 0; j < (int) _DBUS_N_ELEMENTS (listen_funcs); ++j)
{
DBusServerListenResult result;
DBusError tmp_error = DBUS_ERROR_INIT;
result = (* listen_funcs[j].func) (entries[i],
&server,
&tmp_error);
if (result == DBUS_SERVER_LISTEN_OK)
{
_dbus_assert (server != NULL);
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
handled_once = TRUE;
goto out;
}
else if (result == DBUS_SERVER_LISTEN_ADDRESS_ALREADY_USED)
{
_dbus_assert (server == NULL);
dbus_set_error (error,
DBUS_ERROR_ADDRESS_IN_USE,
"Address '%s' already used",
dbus_address_entry_get_method (entries[0]));
handled_once = TRUE;
goto out;
}
else if (result == DBUS_SERVER_LISTEN_BAD_ADDRESS)
{
_dbus_assert (server == NULL);
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
dbus_move_error (&tmp_error, error);
handled_once = TRUE;
goto out;
}
else if (result == DBUS_SERVER_LISTEN_NOT_HANDLED)
{
_dbus_assert (server == NULL);
_DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
/* keep trying addresses */
}
else if (result == DBUS_SERVER_LISTEN_DID_NOT_CONNECT)
{
_dbus_assert (server == NULL);
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
if (!dbus_error_is_set (&first_connect_error))
dbus_move_error (&tmp_error, &first_connect_error);
else
dbus_error_free (&tmp_error);
handled_once = TRUE;
/* keep trying addresses */
}
}
_dbus_assert (server == NULL);
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
}
out:
if (!handled_once)
{
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
if (len > 0)
dbus_set_error (error,
DBUS_ERROR_BAD_ADDRESS,
"Unknown address type '%s'",
dbus_address_entry_get_method (entries[0]));
else
dbus_set_error (error,
DBUS_ERROR_BAD_ADDRESS,
"Empty address '%s'",
address);
}
dbus_address_entries_free (entries);
if (server == NULL)
{
_dbus_assert (error == NULL || dbus_error_is_set (&first_connect_error) ||
dbus_error_is_set (error));
if (error && dbus_error_is_set (error))
{
/* already set the error */
}
else
{
/* didn't set the error but either error should be
* NULL or first_connect_error should be set.
*/
_dbus_assert (error == NULL || dbus_error_is_set (&first_connect_error));
dbus_move_error (&first_connect_error, error);
}
_DBUS_ASSERT_ERROR_IS_CLEAR (&first_connect_error); /* be sure we freed it */
_DBUS_ASSERT_ERROR_IS_SET (error);
return NULL;
}
else
{
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
return server;
}
}
BusConfigParser*
bus_config_load (const DBusString *file,
dbus_bool_t is_toplevel,
const BusConfigParser *parent,
DBusError *error)
{
xmlTextReader *reader;
BusConfigParser *parser;
DBusString dirname, data;
DBusError tmp_error;
int ret;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
parser = NULL;
reader = NULL;
if (!_dbus_string_init (&dirname))
{
_DBUS_SET_OOM (error);
return NULL;
}
if (!_dbus_string_init (&data))
{
_DBUS_SET_OOM (error);
_dbus_string_free (&dirname);
return NULL;
}
if (is_toplevel)
{
/* xmlMemSetup only fails if one of the functions is NULL */
/*
xmlMemSetup (dbus_free,
dbus_malloc,
dbus_realloc,
_dbus_strdup);
*/
xmlInitParser ();
xmlSetGenericErrorFunc (NULL, xml_shut_up);
}
if (!_dbus_string_get_dirname (file, &dirname))
{
_DBUS_SET_OOM (error);
goto failed;
}
parser = bus_config_parser_new (&dirname, is_toplevel, parent);
if (parser == NULL)
{
_DBUS_SET_OOM (error);
goto failed;
}
if (!_dbus_file_get_contents (&data, file, error))
goto failed;
reader = xmlReaderForMemory (_dbus_string_get_const_data (&data),
_dbus_string_get_length (&data),
NULL, NULL, 0);
if (reader == NULL)
{
_DBUS_SET_OOM (error);
goto failed;
}
xmlTextReaderSetParserProp (reader, XML_PARSER_SUBST_ENTITIES, 1);
dbus_error_init (&tmp_error);
xmlTextReaderSetStructuredErrorHandler (reader, xml_text_reader_error, &tmp_error);
while ((ret = xmlTextReaderRead (reader)) == 1)
{
int type;
if (dbus_error_is_set (&tmp_error))
goto reader_out;
type = xmlTextReaderNodeType (reader);
if (type == -1)
{
_DBUS_MAYBE_SET_OOM (&tmp_error);
goto reader_out;
}
switch ((xmlReaderTypes) type) {
case XML_READER_TYPE_ELEMENT:
xml_text_start_element (parser, reader, &tmp_error);
break;
case XML_READER_TYPE_TEXT:
case XML_READER_TYPE_CDATA:
{
DBusString content;
const char *value;
#ifdef __SYMBIAN32__
value = (const char *) xmlTextReaderConstValue (reader);
#else
value = xmlTextReaderConstValue (reader);
#endif
if (value != NULL)
{
_dbus_string_init_const (&content, value);
bus_config_parser_content (parser, &content, &tmp_error);
}
else
_DBUS_MAYBE_SET_OOM (&tmp_error);
break;
}
case XML_READER_TYPE_DOCUMENT_TYPE:
{
const char *name;
#ifdef __SYMBIAN32__
name = (const char *) xmlTextReaderConstName (reader);
#else
name = xmlTextReaderConstName (reader);
#endif
if (name != NULL)
bus_config_parser_check_doctype (parser, name, &tmp_error);
else
_DBUS_MAYBE_SET_OOM (&tmp_error);
break;
}
case XML_READER_TYPE_END_ELEMENT:
{
const char *name;
#ifdef __SYMBIAN32__
name = (const char *) xmlTextReaderConstName (reader);
#else
name = xmlTextReaderConstName (reader);
#endif
if (name != NULL)
bus_config_parser_end_element (parser, name, &tmp_error);
else
_DBUS_MAYBE_SET_OOM (&tmp_error);
break;
}
case XML_READER_TYPE_DOCUMENT:
case XML_READER_TYPE_DOCUMENT_FRAGMENT:
case XML_READER_TYPE_PROCESSING_INSTRUCTION:
case XML_READER_TYPE_COMMENT:
case XML_READER_TYPE_ENTITY:
case XML_READER_TYPE_NOTATION:
case XML_READER_TYPE_WHITESPACE:
case XML_READER_TYPE_SIGNIFICANT_WHITESPACE:
case XML_READER_TYPE_END_ENTITY:
case XML_READER_TYPE_XML_DECLARATION:
/* nothing to do, just read on */
break;
case XML_READER_TYPE_NONE:
case XML_READER_TYPE_ATTRIBUTE:
case XML_READER_TYPE_ENTITY_REFERENCE:
_dbus_assert_not_reached ("unexpected nodes in XML");
}
if (dbus_error_is_set (&tmp_error))
goto reader_out;
}
if (ret == -1)
_DBUS_MAYBE_SET_OOM (&tmp_error);
reader_out:
xmlFreeTextReader (reader);
reader = NULL;
if (dbus_error_is_set (&tmp_error))
{
dbus_move_error (&tmp_error, error);
goto failed;
}
if (!bus_config_parser_finished (parser, error))
goto failed;
_dbus_string_free (&dirname);
_dbus_string_free (&data);
if (is_toplevel)
xmlCleanupParser();
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
return parser;
failed:
_DBUS_ASSERT_ERROR_IS_SET (error);
_dbus_string_free (&dirname);
_dbus_string_free (&data);
if (is_toplevel)
xmlCleanupParser();
if (parser)
bus_config_parser_unref (parser);
_dbus_assert (reader == NULL); /* must go to reader_out first */
return NULL;
}
