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asterisk/apps/app_system.c

98 lines
2.1 KiB
C
Executable File

/*
* Asterisk -- A telephony toolkit for Linux.
*
* Execute arbitrary system commands
*
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
#include <asterisk/lock.h>
#include <asterisk/file.h>
#include <asterisk/logger.h>
#include <asterisk/channel.h>
#include <asterisk/pbx.h>
#include <asterisk/module.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
static char *tdesc = "Generic System() application";
static char *app = "System";
static char *synopsis = "Execute a system command";
static char *descrip =
" System(command): Executes a command by using system(). Returns -1 on\n"
"failure to execute the specified command. If the command itself executes\n"
"but is in error, and if there exists a priority n + 101, where 'n' is the\n"
"priority of the current instance, then the channel will be setup to\n"
"continue at that priority level. Otherwise, System returns 0.\n";
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
static int skel_exec(struct ast_channel *chan, void *data)
{
int res=0;
struct localuser *u;
if (!data) {
ast_log(LOG_WARNING, "System requires an argument(command)\n");
return -1;
}
LOCAL_USER_ADD(u);
/* Do our thing here */
res = system((char *)data);
if (res < 0) {
ast_log(LOG_WARNING, "Unable to execute '%s'\n", (char *)data);
res = -1;
} else if (res == 127) {
ast_log(LOG_WARNING, "Unable to execute '%s'\n", (char *)data);
res = -1;
} else {
if (res && ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
chan->priority+=100;
res = 0;
}
LOCAL_USER_REMOVE(u);
return res;
}
int unload_module(void)
{
STANDARD_HANGUP_LOCALUSERS;
return ast_unregister_application(app);
}
int load_module(void)
{
return ast_register_application(app, skel_exec, synopsis, descrip);
}
char *description(void)
{
return tdesc;
}
int usecount(void)
{
int res;
STANDARD_USECOUNT(res);
return res;
}
char *key()
{
return ASTERISK_GPL_KEY;
}