141 lines
3.6 KiB
C
Executable File
141 lines
3.6 KiB
C
Executable File
/*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* Trivial application to read a variable
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*
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* Copyright (C) 2003, Digium
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*
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* Mark Spencer <markster@digium.com>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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#include <asterisk/lock.h>
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#include <asterisk/file.h>
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#include <asterisk/logger.h>
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#include <asterisk/channel.h>
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#include <asterisk/pbx.h>
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#include <asterisk/app.h>
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#include <asterisk/module.h>
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#include <asterisk/translate.h>
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#include <asterisk/options.h>
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#include <asterisk/utils.h>
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#include <string.h>
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#include <stdlib.h>
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static char *tdesc = "Read Variable Application";
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static char *app = "Read";
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static char *synopsis = "Read a variable";
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static char *descrip =
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" Read(variable[|filename][|maxdigits][|option])\n\n"
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"Reads a #-terminated string of digits from the user in to the given variable,\n"
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"optionally playing a given filename first.\n"
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" maxdigits -- maximum acceptable number of digits. Stops reading after\n"
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" maxdigits have been entered (without requiring the user to\n"
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" press the '#' key).\n"
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" Defaults to 0 - no limit - wait for the user press the '#' key.\n"
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" Any value below 0 means the same. Max accepted value is 255.\n"
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" option -- may be 'skip' to return immediately if the line is not up,\n"
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" or 'noanswer' to read digits even if the line is not up.\n\n"
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"Returns -1 on hangup or error and 0 otherwise.\n";
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STANDARD_LOCAL_USER;
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LOCAL_USER_DECL;
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static int read_exec(struct ast_channel *chan, void *data)
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{
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int res = 0;
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struct localuser *u;
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char tmp[256];
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char argdata[256] = "";
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char *varname;
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char *filename;
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char *stringp;
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char *maxdigitstr;
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char *options;
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int option_skip = 0;
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int option_noanswer = 0;
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int maxdigits=255;
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if (!data || ast_strlen_zero((char *)data)) {
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ast_log(LOG_WARNING, "Read requires an argument (variable)\n");
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return -1;
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}
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strncpy(argdata, (char *)data, sizeof(argdata)-1);
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stringp=argdata;
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varname = strsep(&stringp, "|");
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filename = strsep(&stringp, "|");
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maxdigitstr = strsep(&stringp,"|");
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options = strsep(&stringp, "|");
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if (options && !strcasecmp(options, "skip"))
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option_skip = 1;
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if (options && !strcasecmp(options, "noanswer"))
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option_noanswer = 1;
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if (!(filename) || ast_strlen_zero(filename))
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filename = NULL;
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if (maxdigitstr) {
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maxdigits = atoi(maxdigitstr);
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if ((maxdigits<1) || (maxdigits>255)) {
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maxdigits = 255;
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} else
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ast_verbose(VERBOSE_PREFIX_3 "Accepting a maximum of %i digits.\n", maxdigits);
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}
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if (!(varname) || ast_strlen_zero(varname)) {
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ast_log(LOG_WARNING, "Read requires an variable name\n");
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return -1;
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}
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LOCAL_USER_ADD(u);
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if (chan->_state != AST_STATE_UP) {
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if (option_skip) {
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/* At the user's option, skip if the line is not up */
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pbx_builtin_setvar_helper(chan, varname, "\0");
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LOCAL_USER_REMOVE(u);
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return 0;
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} else if (!option_noanswer) {
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/* Otherwise answer unless we're supposed to read while on-hook */
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res = ast_answer(chan);
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}
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}
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if (!res) {
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ast_stopstream(chan);
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res = ast_app_getdata(chan, filename, tmp, maxdigits, 0);
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if (res > -1)
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pbx_builtin_setvar_helper(chan, varname, tmp);
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ast_verbose(VERBOSE_PREFIX_3 "User entered '%s'\n", tmp);
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}
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LOCAL_USER_REMOVE(u);
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return res;
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}
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int unload_module(void)
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{
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STANDARD_HANGUP_LOCALUSERS;
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return ast_unregister_application(app);
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}
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int load_module(void)
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{
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return ast_register_application(app, read_exec, synopsis, descrip);
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}
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char *description(void)
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{
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return tdesc;
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}
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int usecount(void)
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{
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int res;
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STANDARD_USECOUNT(res);
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return res;
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}
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char *key()
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{
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return ASTERISK_GPL_KEY;
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}
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