Wed May 16 06:35:48 2012

Asterisk developer's documentation

func_dialplan.c File Reference

Dialplan group functions check if a dialplan entry exists. More...

#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/app.h"

Include dependency graph for func_dialplan.c:

Go to the source code of this file.

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int acf_isexten_exec (struct ast_channel *chan, const char *cmd, char *parse, char *buffer, size_t buflen)
static int isexten_function_read (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
static int load_module (void)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Dialplan Context/Extension/Priority Checking 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 = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND, }
static struct ast_custom_function acf_isexten
static struct ast_module_info * ast_module_info = &__mod_info
static struct ast_custom_function isexten_function

Detailed Description

Dialplan group functions check if a dialplan entry exists.

Author:
Gregory Nietsky AKA irroot <gregory@networksentry.co.za>

Russell Bryant <russell@digium.com>

Definition in file func_dialplan.c.

Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 192 of file func_dialplan.c.

static void __unreg_module ( void   )  [static]

Definition at line 192 of file func_dialplan.c.

static int acf_isexten_exec ( struct ast_channel *  chan,
const char *  cmd,
char *  parse,
char *  buffer,
size_t  buflen 
) [static]

Definition at line 127 of file func_dialplan.c.

References args, AST_APP_ARG, ast_channel_caller(), ast_channel_context(), ast_copy_string(), AST_DECLARE_APP_ARGS, ast_exists_extension(), ast_log(), AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), context, LOG_WARNING, and S_COR.

00128 {
00129    int priority_int;
00130    AST_DECLARE_APP_ARGS(args,
00131       AST_APP_ARG(context);
00132       AST_APP_ARG(extension);
00133       AST_APP_ARG(priority);
00134    );
00135 
00136    AST_STANDARD_APP_ARGS(args, parse);
00137 
00138    if (ast_strlen_zero(args.context)) {
00139       args.context = ast_strdupa(ast_channel_context(chan));
00140    }
00141 
00142    if (ast_strlen_zero(args.extension)) {
00143       ast_log(LOG_WARNING, "Syntax: VALID_EXTEN([<context>],<extension>[,<priority>]) - missing argument <extension>!\n");
00144       return -1;
00145    }
00146 
00147    if (ast_strlen_zero(args.priority)) {
00148       priority_int = 1;
00149    } else {
00150       priority_int = atoi(args.priority);
00151    }
00152 
00153    if (ast_exists_extension(chan, args.context, args.extension, priority_int,
00154       S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) {
00155        ast_copy_string(buffer, "1", buflen);
00156    } else {
00157        ast_copy_string(buffer, "0", buflen);
00158    }
00159 
00160    return 0;
00161 }

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

Definition at line 75 of file func_dialplan.c.

References args, AST_APP_ARG, ast_channel_caller(), ast_context_find(), AST_DECLARE_APP_ARGS, ast_exists_extension(), ast_findlabel_extension(), ast_log(), AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), context, exten, LOG_ERROR, parse(), and S_COR.

00077 {
00078    char *parse;
00079    AST_DECLARE_APP_ARGS(args,
00080       AST_APP_ARG(context);
00081       AST_APP_ARG(exten);
00082       AST_APP_ARG(priority);
00083    );
00084 
00085    strcpy(buf, "0");
00086 
00087    if (ast_strlen_zero(data)) {
00088       ast_log(LOG_ERROR, "DIALPLAN_EXISTS() requires an argument\n");
00089       return -1;
00090    }
00091 
00092    parse = ast_strdupa(data);
00093    AST_STANDARD_APP_ARGS(args, parse);
00094 
00095    if (!ast_strlen_zero(args.priority)) {
00096       int priority_num;
00097       if (sscanf(args.priority, "%30d", &priority_num) == 1 && priority_num > 0) {
00098          int res;
00099          res = ast_exists_extension(chan, args.context, args.exten, priority_num, 
00100             S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
00101          if (res)
00102             strcpy(buf, "1");
00103       } else {
00104          int res;
00105          res = ast_findlabel_extension(chan, args.context, args.exten, args.priority,
00106             S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
00107          if (res > 0)
00108             strcpy(buf, "1");
00109       }
00110    } else if (!ast_strlen_zero(args.exten)) {
00111       int res;
00112       res = ast_exists_extension(chan, args.context, args.exten, 1, 
00113          S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL));
00114       if (res)
00115          strcpy(buf, "1");
00116    } else if (!ast_strlen_zero(args.context)) {
00117       if (ast_context_find(args.context))
00118          strcpy(buf, "1");
00119    } else {
00120       ast_log(LOG_ERROR, "Invalid arguments provided to DIALPLAN_EXISTS\n");
00121       return -1;
00122    }
00123 
00124    return 0;
00125 }

static int load_module ( void   )  [static]

Definition at line 181 of file func_dialplan.c.

References ast_custom_function_register.

00182 {
00183    int res = ast_custom_function_register(&isexten_function);
00184    res |= ast_custom_function_register(&acf_isexten);
00185    return res;
00186 }

static int unload_module ( void   )  [static]

Definition at line 174 of file func_dialplan.c.

References ast_custom_function_unregister().

00175 {
00176    int res = ast_custom_function_unregister(&isexten_function);
00177    res |= ast_custom_function_unregister(&acf_isexten);
00178    return res;
00179 }

Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Dialplan Context/Extension/Priority Checking 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 = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND, } [static]

Definition at line 192 of file func_dialplan.c.

struct ast_custom_function acf_isexten [static]

Initial value:

 {
   .name = "VALID_EXTEN",
   .read = acf_isexten_exec,
}

Definition at line 169 of file func_dialplan.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 192 of file func_dialplan.c.

struct ast_custom_function isexten_function [static]

Initial value:

 {
   .name = "DIALPLAN_EXISTS",
   .read = isexten_function_read,
   .read_max = 2,
}

Definition at line 163 of file func_dialplan.c.

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