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/*
* Asterisk -- A telephony toolkit for Linux.
*
* Trivial application to read a variable
*
* Copyright (C) 2003, Digium
*
* 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/app.h>
#include <asterisk/module.h>
#include <asterisk/translate.h>
#include <asterisk/options.h>
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
static char *tdesc = "Read Variable Application";
static char *app = "Read";
static char *synopsis = "Read a variable";
static char *descrip =
" Read(variable[|filename][|maxdigits]): Reads a #-terminated string of digits from\n"
"the user, optionally playing a given filename first. Returns -1 on hangup or\n"
"error and 0 otherwise.\n"
" maxdigits -- maximum acceptable number of digits. Stops reading after maxdigits\n"
" have been entered (without requiring the user press the '#' key).\n"
" Defaults to 0 - no limit - wait for the user press the '#' key.\n"
" Any value below 0 means the same. Max accepted value is 255.\n";
STANDARD_LOCAL_USER;
LOCAL_USER_DECL;
static int read_exec(struct ast_channel *chan, void *data)
{
int res = 0;
struct localuser *u;
char tmp[256];
char *varname;
char *filename;
char *stringp;
char *maxdigitstr;
int maxdigits=255;
if (!data || !strlen((char *)data)) {
ast_log(LOG_WARNING, "Read requires an argument (variable)\n");
return -1;
}
strncpy(tmp, (char *)data, sizeof(tmp)-1);
stringp=(char *)calloc(1,strlen(tmp)+1);
snprintf(stringp,strlen(tmp)+1,"%s",tmp);
varname = strsep(&stringp, "|");
filename = strsep(&stringp, "|");
maxdigitstr = strsep(&stringp,"|");
if (!(filename) || (strlen(filename)==0)) filename = NULL;
if (maxdigitstr)
{
maxdigits = atoi(maxdigitstr);
if ((maxdigits<1) || (maxdigits>255)) {
maxdigits = 255;
}
else
ast_verbose(VERBOSE_PREFIX_3 "Accepting a maximum of %i digits.\n", maxdigits);
}
if (!(varname) || (strlen(varname)==0)) {
ast_log(LOG_WARNING, "Read requires an variable name\n");
return -1;
}
LOCAL_USER_ADD(u);
if (chan->_state != AST_STATE_UP) {
/* Answer if the line isn't up. */
res = ast_answer(chan);
}
strncpy(tmp, (char *)varname, sizeof(tmp)-1);
if (!res) {
ast_stopstream(chan);
res = ast_app_getdata(chan, filename, tmp, maxdigits, 0);
if (!res)
pbx_builtin_setvar_helper(chan, varname, tmp);
ast_verbose(VERBOSE_PREFIX_3 "User entered '%s'\n", tmp);
}
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, read_exec, synopsis, 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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