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/*
* Asterisk -- A telephony toolkit for Linux.
*
* ReadFile application -- Reads in a File for you.
*
* Copyright (C) 2005 Digium, Inc.
*
* Matt O'Gorman <mogorman@digium.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/app.h"
#include "asterisk/module.h"
static char *tdesc = "Stores output of file into a variable";
static char *app_readfile = "ReadFile";
static char *readfile_synopsis = "ReadFile(varname=file,length)";
static char *readfile_descrip =
"ReadFile(varname=file,length)\n"
" Varname - Result stored here.\n"
" File - The name of the file to read.\n"
" Length - Maximum number of characters to capture.\n";
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
static int readfile_exec(struct ast_channel *chan, void *data)
{
int res=0;
struct localuser *u;
char *s, *varname=NULL, *file=NULL, *length=NULL, *returnvar=NULL;
int len=0;
s = ast_strdupa(data);
if (!s) {
ast_log(LOG_ERROR, "Out of memory\n");
return -1;
}
varname = strsep(&s, "=");
file = strsep(&s, "|");
length = s;
if (!varname || !file) {
ast_log(LOG_ERROR, "No file or variable specified!\n");
return -1;
}
LOCAL_USER_ADD(u);
if (length) {
if ((sscanf(length, "%d", &len) != 1) || (len < 0)) {
ast_log(LOG_WARNING, "%s is not a positive number, defaulting length to max\n", length);
len = 0;
}
}
returnvar = ast_read_textfile(file);
if(len > 0){
if(len < strlen(returnvar))
returnvar[len]='\0';
else
ast_log(LOG_WARNING,"%s is longer than %d, and %d \n", file, len, (int)strlen(returnvar));
}
pbx_builtin_setvar_helper(chan, varname, returnvar);
free(returnvar);
LOCAL_USER_REMOVE(u);
return res;
}
int unload_module(void)
{
STANDARD_HANGUP_LOCALUSERS;
return ast_unregister_application(app_readfile);
}
int load_module(void)
{
return ast_register_application(app_readfile, readfile_exec, readfile_synopsis, readfile_descrip);
}
char *description(void)
{
return tdesc;
}
int usecount(void)
{
int res;
STANDARD_USECOUNT(res);
return res;
}
char *key()
{
return ASTERISK_GPL_KEY;
}
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