Sat Aug 6 00:39:56 2011

Asterisk developer's documentation


func_env.c File Reference

Environment related dialplan functions. More...

#include "asterisk.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/logger.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"

Go to the source code of this file.

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int env_read (struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
static int env_write (struct ast_channel *chan, char *cmd, char *data, const char *value)
static int load_module (void)
static int stat_read (struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT | AST_MODFLAG_BUILDSUM, .description = "Environment/filesystem dialplan functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, }
static const struct ast_module_infoast_module_info = &__mod_info
static struct ast_custom_function env_function
static struct ast_custom_function stat_function


Detailed Description

Environment related dialplan functions.

Definition in file func_env.c.


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 158 of file func_env.c.

static void __unreg_module ( void   )  [static]

Definition at line 158 of file func_env.c.

static int env_read ( struct ast_channel chan,
char *  cmd,
char *  data,
char *  buf,
size_t  len 
) [static]

Definition at line 40 of file func_env.c.

References ast_copy_string().

00042 {
00043    char *ret = NULL;
00044 
00045    *buf = '\0';
00046 
00047    if (data)
00048       ret = getenv(data);
00049 
00050    if (ret)
00051       ast_copy_string(buf, ret, len);
00052 
00053    return 0;
00054 }

static int env_write ( struct ast_channel chan,
char *  cmd,
char *  data,
const char *  value 
) [static]

Definition at line 56 of file func_env.c.

References ast_strlen_zero().

00058 {
00059    if (!ast_strlen_zero(data)) {
00060       if (!ast_strlen_zero(value)) {
00061          setenv(data, value, 1);
00062       } else {
00063          unsetenv(data);
00064       }
00065    }
00066 
00067    return 0;
00068 }

static int load_module ( void   )  [static]

Definition at line 148 of file func_env.c.

References ast_custom_function_register(), env_function, and stat_function.

00149 {
00150    int res = 0;
00151 
00152    res |= ast_custom_function_register(&env_function);
00153    res |= ast_custom_function_register(&stat_function);
00154 
00155    return res;
00156 }

static int stat_read ( struct ast_channel chan,
char *  cmd,
char *  data,
char *  buf,
size_t  len 
) [static]

Definition at line 70 of file func_env.c.

References ast_copy_string().

00072 {
00073    char *action;
00074    struct stat s;
00075 
00076    ast_copy_string(buf, "0", len);
00077 
00078    action = strsep(&data, "|");
00079    if (stat(data, &s)) {
00080       return 0;
00081    } else {
00082       switch (*action) {
00083       case 'e':
00084          strcpy(buf, "1");
00085          break;
00086       case 's':
00087          snprintf(buf, len, "%d", (unsigned int) s.st_size);
00088          break;
00089       case 'f':
00090          snprintf(buf, len, "%d", S_ISREG(s.st_mode) ? 1 : 0);
00091          break;
00092       case 'd':
00093          snprintf(buf, len, "%d", S_ISDIR(s.st_mode) ? 1 : 0);
00094          break;
00095       case 'M':
00096          snprintf(buf, len, "%d", (int) s.st_mtime);
00097          break;
00098       case 'A':
00099          snprintf(buf, len, "%d", (int) s.st_mtime);
00100          break;
00101       case 'C':
00102          snprintf(buf, len, "%d", (int) s.st_ctime);
00103          break;
00104       case 'm':
00105          snprintf(buf, len, "%o", (int) s.st_mode);
00106          break;
00107       }
00108    }
00109 
00110    return 0;
00111 }

static int unload_module ( void   )  [static]

Definition at line 138 of file func_env.c.

References ast_custom_function_unregister(), env_function, and stat_function.

00139 {
00140    int res = 0;
00141 
00142    res |= ast_custom_function_unregister(&env_function);
00143    res |= ast_custom_function_unregister(&stat_function);
00144 
00145    return res;
00146 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT | AST_MODFLAG_BUILDSUM, .description = "Environment/filesystem dialplan functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, } [static]

Definition at line 158 of file func_env.c.

const struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 158 of file func_env.c.

struct ast_custom_function env_function [static]

Definition at line 113 of file func_env.c.

Referenced by load_module(), and unload_module().

struct ast_custom_function stat_function [static]

Definition at line 121 of file func_env.c.

Referenced by load_module(), and unload_module().


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