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fdb7f7ba3d
build times - tested, there is no measureable difference before and after this commit. In this change: use asterisk/compat.h to include a small set of system headers: inttypes.h, unistd.h, stddef.h, stddint.h, sys/types.h, stdarg.h, stdlib.h, alloca.h, stdio.h Where available, the inclusion is conditional on HAVE_FOO_H as determined by autoconf. Normally, source files should not include any of the above system headers, and instead use either "asterisk.h" or "asterisk/compat.h" which does it better. For the time being I have left alone second-level directories (main/db1-ast, etc.). git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89333 65c4cc65-6c06-0410-ace0-fbb531ad65f3
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2006, Digium, Inc.
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* Copyright (C) 2006, Claude Patry
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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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 Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Generate Random Number
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*
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* \author Claude Patry <cpatry@gmail.com>
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* \author Tilghman Lesher ( http://asterisk.drunkcoder.com/ )
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* \ingroup functions
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/logger.h"
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#include "asterisk/utils.h"
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#include "asterisk/app.h"
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#include "asterisk/options.h"
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static int acf_rand_exec(struct ast_channel *chan, const char *cmd,
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char *parse, char *buffer, size_t buflen)
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{
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int min_int, response_int, max_int;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(min);
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AST_APP_ARG(max);
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);
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AST_STANDARD_APP_ARGS(args, parse);
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if (ast_strlen_zero(args.min) || sscanf(args.min, "%d", &min_int) != 1)
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min_int = 0;
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if (ast_strlen_zero(args.max) || sscanf(args.max, "%d", &max_int) != 1)
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max_int = RAND_MAX;
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if (max_int < min_int) {
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int tmp = max_int;
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max_int = min_int;
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min_int = tmp;
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ast_debug(1, "max<min\n");
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}
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response_int = min_int + (ast_random() % (max_int - min_int + 1));
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ast_debug(1, "%d was the lucky number in range [%d,%d]\n", response_int, min_int, max_int);
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snprintf(buffer, buflen, "%d", response_int);
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return 0;
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}
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static struct ast_custom_function acf_rand = {
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.name = "RAND",
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.synopsis = "Choose a random number in a range",
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.syntax = "RAND([min][,max])",
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.desc =
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"Choose a random number between min and max. Min defaults to 0, if not\n"
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"specified, while max defaults to RAND_MAX (2147483647 on many systems).\n"
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" Example: Set(junky=${RAND(1,8)}); \n"
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" Sets junky to a random number between 1 and 8, inclusive.\n",
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.read = acf_rand_exec,
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};
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static int unload_module(void)
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{
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ast_custom_function_unregister(&acf_rand);
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return 0;
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}
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static int load_module(void)
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{
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return ast_custom_function_register(&acf_rand);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Random number dialplan function");
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