![kpfleming](/assets/img/avatar_default.png)
- restructured build tree and makefiles to eliminate recursion problems - support for embedded modules - support for static builds - simpler cross-compilation support - simpler module/loader interface (no exported symbols) git-svn-id: http://svn.digium.com/svn/asterisk/trunk@40722 f38db490-d61c-443f-a65b-d21fe96a405b
159 lines
3.5 KiB
C
159 lines
3.5 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, Digium, Inc.
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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 Environment related dialplan functions
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*
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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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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static int env_read(struct ast_channel *chan, char *cmd, char *data,
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char *buf, size_t len)
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{
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char *ret = NULL;
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*buf = '\0';
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if (data)
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ret = getenv(data);
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if (ret)
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ast_copy_string(buf, ret, len);
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return 0;
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}
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static int env_write(struct ast_channel *chan, char *cmd, char *data,
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const char *value)
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{
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if (!ast_strlen_zero(data)) {
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if (!ast_strlen_zero(value)) {
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setenv(data, value, 1);
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} else {
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unsetenv(data);
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}
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}
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return 0;
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}
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static int stat_read(struct ast_channel *chan, char *cmd, char *data,
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char *buf, size_t len)
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{
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char *action;
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struct stat s;
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*buf = '\0';
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action = strsep(&data, "|");
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if (stat(data, &s)) {
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return -1;
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} else {
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switch (*action) {
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case 'e':
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strcpy(buf, "1");
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break;
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case 's':
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snprintf(buf, len, "%d", (unsigned int) s.st_size);
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break;
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case 'f':
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snprintf(buf, len, "%d", S_ISREG(s.st_mode) ? 1 : 0);
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break;
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case 'd':
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snprintf(buf, len, "%d", S_ISDIR(s.st_mode) ? 1 : 0);
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break;
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case 'M':
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snprintf(buf, len, "%d", (int) s.st_mtime);
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break;
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case 'A':
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snprintf(buf, len, "%d", (int) s.st_mtime);
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break;
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case 'C':
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snprintf(buf, len, "%d", (int) s.st_ctime);
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break;
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case 'm':
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snprintf(buf, len, "%o", (int) s.st_mode);
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break;
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}
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}
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return 0;
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}
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static struct ast_custom_function env_function = {
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.name = "ENV",
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.synopsis = "Gets or sets the environment variable specified",
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.syntax = "ENV(<envname>)",
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.read = env_read,
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.write = env_write,
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};
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static struct ast_custom_function stat_function = {
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.name = "STAT",
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.synopsis = "Does a check on the specified file",
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.syntax = "STAT(<flag>,<filename>)",
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.read = stat_read,
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.desc =
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"flag may be one of the following:\n"
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" d - Checks if the file is a directory\n"
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" e - Checks if the file exists\n"
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" f - Checks if the file is a regular file\n"
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" m - Returns the file mode (in octal)\n"
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" s - Returns the size (in bytes) of the file\n"
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" A - Returns the epoch at which the file was last accessed\n"
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" C - Returns the epoch at which the inode was last changed\n"
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" M - Returns the epoch at which the file was last modified\n",
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};
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static int unload_module(void)
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{
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int res = 0;
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res |= ast_custom_function_unregister(&env_function);
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res |= ast_custom_function_unregister(&stat_function);
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return res;
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}
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static int load_module(void)
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{
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int res = 0;
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res |= ast_custom_function_register(&env_function);
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res |= ast_custom_function_register(&stat_function);
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return res;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Environment/filesystem dialplan functions");
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