mirror of
https://github.com/asterisk/asterisk.git
synced 2025-09-19 11:42:27 +00:00
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
|
/*
|
||
|
|
* Asterisk -- A telephony toolkit for Linux.
|
||
|
|
*
|
||
|
|
* MD5 digest related dialplan functions
|
||
|
|
*
|
||
|
|
* Copyright (C) 2005, Digium, Inc.
|
||
|
|
*
|
||
|
|
* This program is free software, distributed under the terms of
|
||
|
|
* the GNU General Public License
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#include "asterisk/channel.h"
|
||
|
|
#include "asterisk/pbx.h"
|
||
|
|
#include "asterisk/logger.h"
|
||
|
|
#include "asterisk/utils.h"
|
||
|
|
#include "asterisk/app.h"
|
||
|
|
#include "asterisk/config.h" /* for ast_true */
|
||
|
|
|
||
|
|
static char *builtin_function_isnull(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
|
||
|
|
{
|
||
|
|
char *ret_true = "1", *ret_false = "0";
|
||
|
|
|
||
|
|
return data && *data ? ret_false : ret_true;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char *builtin_function_exists(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
|
||
|
|
{
|
||
|
|
char *ret_true = "1", *ret_false = "0";
|
||
|
|
|
||
|
|
return data && *data ? ret_true : ret_false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char *builtin_function_if(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
|
||
|
|
{
|
||
|
|
char *ret = NULL;
|
||
|
|
char *mydata = NULL;
|
||
|
|
char *expr = NULL;
|
||
|
|
char *iftrue = NULL;
|
||
|
|
char *iffalse = NULL;
|
||
|
|
|
||
|
|
if((mydata = ast_strdupa(data))) {
|
||
|
|
expr = mydata;
|
||
|
|
if ((iftrue = strchr(mydata, '?'))) {
|
||
|
|
*iftrue = '\0';
|
||
|
|
iftrue++;
|
||
|
|
if ((iffalse = strchr(iftrue, ':'))) {
|
||
|
|
*iffalse = '\0';
|
||
|
|
iffalse++;
|
||
|
|
}
|
||
|
|
} else
|
||
|
|
iffalse = "";
|
||
|
|
if (expr && iftrue) {
|
||
|
|
ret = ast_true(expr) ? iftrue : iffalse;
|
||
|
|
strncpy(buf, ret, len);
|
||
|
|
ret = buf;
|
||
|
|
} else {
|
||
|
|
ast_log(LOG_WARNING, "Syntax $(if <expr>?[<truecond>][:<falsecond>])\n");
|
||
|
|
ret = NULL;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ast_log(LOG_WARNING, "Memory Error!\n");
|
||
|
|
ret = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef BUILTIN_FUNC
|
||
|
|
static
|
||
|
|
#endif
|
||
|
|
struct ast_custom_function isnull_function = {
|
||
|
|
.name = "ISNULL",
|
||
|
|
.synopsis = "NULL Test: Returns 1 if NULL or 0 otherwise",
|
||
|
|
.syntax = "ISNULL(<data>)",
|
||
|
|
.read = builtin_function_isnull,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef BUILTIN_FUNC
|
||
|
|
static
|
||
|
|
#endif
|
||
|
|
struct ast_custom_function exists_function = {
|
||
|
|
.name = "EXISTS",
|
||
|
|
.synopsis = "Existence Test: Returns 1 if exists, 0 otherwise",
|
||
|
|
.syntax = "EXISTS(<data>)",
|
||
|
|
.read = builtin_function_exists,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef BUILTIN_FUNC
|
||
|
|
static
|
||
|
|
#endif
|
||
|
|
struct ast_custom_function if_function = {
|
||
|
|
.name = "IF",
|
||
|
|
.synopsis = "Conditional: Returns the data following '?' if true else the data following ':'",
|
||
|
|
.syntax = "IF(<expr>?<true>:<false>)",
|
||
|
|
.read = builtin_function_if,
|
||
|
|
};
|