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/***************************************************************************
* *
* liblazy *
* *
* Copyright (C) 2006 Holger Macht <holger@homac.de> *
* *
* Author(s): Holger Macht <holger@homac.de> *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation; either version 2.1 of the License, or *
* (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
***************************************************************************/
#include "liblazy.h"
#include "liblazy_local.h"
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
int liblazy_dbus_send_method_call(const char *destination, const char *path,
const char *interface, const char *method,
int bus_type,
DBusMessage **reply,
int first_arg_type, va_list var_args)
{
DBusError dbus_error;
DBusConnection *dbus_connection = NULL;
DBusMessage *message = NULL;
int ret = 0;
dbus_error_init(&dbus_error);
dbus_connection = dbus_bus_get(bus_type, &dbus_error);
if (dbus_connection == NULL || dbus_error_is_set(&dbus_error)) {
ERROR("Connection to dbus not ready, skipping method call %s: %s",
method, dbus_error.message);
ret = LIBLAZY_ERROR_DBUS_NOT_READY;
goto Free_Error;
}
message = dbus_message_new_method_call(destination, path, interface, method);
dbus_message_append_args_valist(message, first_arg_type, var_args);
if (reply == NULL) {
if (!dbus_connection_send(dbus_connection, message, NULL)) {
ERROR("Could not send method call: OOM");
ret = LIBLAZY_ERROR_GENERAL;
}
} else {
*reply = dbus_connection_send_with_reply_and_block(dbus_connection,
message, -1,
&dbus_error);
if (dbus_error_is_set(&dbus_error)) {
ERROR("Received error reply: %s", dbus_error.message);
ret = LIBLAZY_ERROR_DBUS_ERROR_IS_SET;
}
}
dbus_message_unref(message);
Free_Error:
dbus_error_free(&dbus_error);
return ret;
}
int liblazy_dbus_system_send_method_call(const char *destination, const char *path,
const char *interface, const char *method,
DBusMessage **reply,
int first_arg_type, ...)
{
int ret;
va_list var_args;
va_start(var_args, first_arg_type);
ret = liblazy_dbus_send_method_call(destination,
path,
interface,
method,
DBUS_BUS_SYSTEM,
reply,
first_arg_type,
var_args);
va_end(var_args);
return ret;
}
int liblazy_dbus_session_send_method_call(const char *destination, const char *path,
const char *interface, const char *method,
DBusMessage **reply,
int first_arg_type, ...)
{
int ret;
va_list var_args;
va_start(var_args, first_arg_type);
ret = liblazy_dbus_send_method_call(destination,
path,
interface,
method,
DBUS_BUS_SESSION,
reply,
first_arg_type,
var_args);
va_end(var_args);
return ret;
}
static int liblazy_dbus_send_signal(const char *path, const char *interface,
const char *name, int bus_type,
int first_arg_type, va_list var_args)
{
DBusError dbus_error;
DBusMessage *message;
DBusConnection *dbus_connection;
int ret = 0;
dbus_error_init(&dbus_error);
dbus_connection = dbus_bus_get(bus_type, &dbus_error);
if (dbus_connection == NULL || dbus_error_is_set(&dbus_error)) {
ERROR("Connection to dbus not ready, skipping signal %s: %s",
name, dbus_error.message);
ret = LIBLAZY_ERROR_DBUS_NOT_READY;
goto Free_Error;
}
message = dbus_message_new_signal(path, interface, name);
dbus_message_append_args_valist(message, first_arg_type, var_args);
if (!dbus_connection_send(dbus_connection, message, NULL)) {
ERROR("Could not send signal to D-BUS system bus.");
ret = LIBLAZY_ERROR_GENERAL;
}
dbus_message_unref(message);
Free_Error:
dbus_error_free(&dbus_error);
return ret;
}
int liblazy_dbus_system_send_signal(const char *path, const char *interface,
const char *name, int first_arg_type, ...)
{
int ret;
va_list var_args;
va_start(var_args, first_arg_type);
ret = liblazy_dbus_send_signal(path, interface, name, DBUS_BUS_SYSTEM,
first_arg_type, var_args);
va_end(var_args);
return ret;
}
int liblazy_dbus_session_send_signal(const char *path, const char *interface,
const char *name, int first_arg_type, ...)
{
int ret;
va_list var_args;
va_start(var_args, first_arg_type);
ret = liblazy_dbus_send_signal(path, interface, name, DBUS_BUS_SESSION,
first_arg_type, var_args);
va_end(var_args);
return ret;
}
int liblazy_dbus_message_get_basic_arg(DBusMessage *message, int type,
void *arg, int no)
{
int current_type;
DBusMessageIter iter;
int x = 0;
int ret = LIBLAZY_ERROR_GENERAL;
int _no = 0;
if (message == NULL) {
ERROR("Passing in NULL for message argument invalid");
return ret;
}
for (dbus_message_iter_init(message, &iter);
(current_type = dbus_message_iter_get_arg_type(&iter)) != DBUS_TYPE_INVALID;
x++, dbus_message_iter_next(&iter)) {
if (current_type == type) {
if (_no < no) {
_no++;
continue;
} else if (_no > no)
break;
else {
dbus_message_iter_get_basic(&iter, arg);
ret = 0;
break;
}
}
}
return ret;
}
static char **liblazy_dbus_get_strlist_from_array(DBusMessageIter *reply_iter)
{
const char *val;
DBusMessageIter iter_array;
char **strlist = NULL;
int i = 0;
if (dbus_message_iter_get_arg_type(reply_iter) != DBUS_TYPE_ARRAY) {
ERROR("Iterator doesn't contain an array at current position");
return NULL;
}
dbus_message_iter_recurse(reply_iter, &iter_array);
strlist = (char **)malloc(0);
while (dbus_message_iter_get_arg_type(&iter_array) == DBUS_TYPE_STRING) {
dbus_message_iter_get_basic(&iter_array, &val);
strlist = realloc(strlist, sizeof(char**) * (i + 1));
strlist[i] = strdup(val);
dbus_message_iter_next(&iter_array);
i++;
}
strlist = realloc(strlist, sizeof(char**) * (i + 1));
strlist[i] = NULL;
return strlist;
}
int liblazy_dbus_message_get_strlist_arg(DBusMessage *message,
char ***strlist, int no)
{
int current_type;
DBusMessageIter iter;
int x = 0;
int ret = LIBLAZY_ERROR_GENERAL;
int _no = 0;
if (message == NULL)
return LIBLAZY_ERROR_INVALID_ARGUMENT;
for (dbus_message_iter_init(message, &iter);
(current_type = dbus_message_iter_get_arg_type(&iter)) != DBUS_TYPE_INVALID;
x++, dbus_message_iter_next(&iter)) {
if (current_type == DBUS_TYPE_ARRAY) {
if (_no < no) {
_no++;
continue;
} else if (_no > no)
break;
else {
*strlist = liblazy_dbus_get_strlist_from_array(&iter);
ret = 0;
break;
}
}
}
return ret;
}
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