![markster](/assets/img/avatar_default.png)
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@3874 f38db490-d61c-443f-a65b-d21fe96a405b
122 lines
3 KiB
C
Executable file
122 lines
3 KiB
C
Executable file
/*
|
|
* Asterisk -- A telephony toolkit for Linux.
|
|
*
|
|
* Execute arbitrary system commands
|
|
*
|
|
* Copyright (C) 1999-2004, Digium, Inc.
|
|
*
|
|
* Mark Spencer <markster@digium.com>
|
|
*
|
|
* 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 <asterisk/app.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
|
|
static char *tdesc = "Generic System() application";
|
|
|
|
static char *app = "System";
|
|
|
|
static char *app2 = "TrySystem";
|
|
|
|
static char *synopsis = "Execute a system command";
|
|
|
|
static char *synopsis2 = "Try executing 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";
|
|
|
|
static char *descrip2 =
|
|
" TrySystem(command): Executes a command by using system(). Returns 0\n"
|
|
"on any situation. If the command itself executes but is in error, and if\n"
|
|
"there exists a priority n + 101, where 'n' is the priority of the current\n"
|
|
"instance, then the channel will be setup to continue at that\n"
|
|
"priority level. Otherwise, System returns 0.\n";
|
|
|
|
STANDARD_LOCAL_USER;
|
|
|
|
LOCAL_USER_DECL;
|
|
|
|
static int system_exec_helper(struct ast_channel *chan, void *data, int failmode)
|
|
{
|
|
int res=0;
|
|
struct localuser *u;
|
|
if (!data) {
|
|
ast_log(LOG_WARNING, "System requires an argument(command)\n");
|
|
return failmode;
|
|
}
|
|
LOCAL_USER_ADD(u);
|
|
/* Do our thing here */
|
|
res = ast_safe_system((char *)data);
|
|
if ((res < 0) && (errno != ECHILD)) {
|
|
ast_log(LOG_WARNING, "Unable to execute '%s'\n", (char *)data);
|
|
res = failmode;
|
|
} else if (res == 127) {
|
|
ast_log(LOG_WARNING, "Unable to execute '%s'\n", (char *)data);
|
|
res = failmode;
|
|
} else {
|
|
if (res < 0)
|
|
res = 0;
|
|
if (res && ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->cid.cid_num))
|
|
chan->priority+=100;
|
|
res = 0;
|
|
}
|
|
LOCAL_USER_REMOVE(u);
|
|
return res;
|
|
}
|
|
|
|
static int system_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
return system_exec_helper(chan, data, -1);
|
|
}
|
|
|
|
static int trysystem_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
return system_exec_helper(chan, data, 0);
|
|
}
|
|
|
|
int unload_module(void)
|
|
{
|
|
STANDARD_HANGUP_LOCALUSERS;
|
|
ast_unregister_application(app2);
|
|
return ast_unregister_application(app);
|
|
}
|
|
|
|
int load_module(void)
|
|
{
|
|
ast_register_application(app2, trysystem_exec, synopsis2, descrip2);
|
|
return ast_register_application(app, system_exec, synopsis, descrip);
|
|
}
|
|
|
|
char *description(void)
|
|
{
|
|
return tdesc;
|
|
}
|
|
|
|
int usecount(void)
|
|
{
|
|
int res;
|
|
STANDARD_USECOUNT(res);
|
|
return res;
|
|
}
|
|
|
|
char *key()
|
|
{
|
|
return ASTERISK_GPL_KEY;
|
|
}
|