Mon Mar 12 2012 21:39:54

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 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_DEFAULT, }
static struct ast_module_infoast_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 125 of file func_dialplan.c.

static void __unreg_module ( void  ) [static]

Definition at line 125 of file func_dialplan.c.

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

Definition at line 57 of file func_dialplan.c.

References args, AST_APP_ARG, ast_context_find(), AST_DECLARE_APP_ARGS, ast_exists_extension(), ast_findlabel_extension(), ast_log(), AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), ast_channel::caller, context, exten, ast_party_caller::id, LOG_ERROR, ast_party_id::number, parse(), S_COR, ast_party_number::str, and ast_party_number::valid.

{
   char *parse;
   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(context);
      AST_APP_ARG(exten);
      AST_APP_ARG(priority);
   );

   strcpy(buf, "0");

   if (ast_strlen_zero(data)) {
      ast_log(LOG_ERROR, "DIALPLAN_EXISTS() requires an argument\n");
      return -1;
   }

   parse = ast_strdupa(data);
   AST_STANDARD_APP_ARGS(args, parse);

   if (!ast_strlen_zero(args.priority)) {
      int priority_num;
      if (sscanf(args.priority, "%30d", &priority_num) == 1 && priority_num > 0) {
         int res;
         res = ast_exists_extension(chan, args.context, args.exten, priority_num, 
            S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
         if (res)
            strcpy(buf, "1");
      } else {
         int res;
         res = ast_findlabel_extension(chan, args.context, args.exten, args.priority,
            S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
         if (res > 0)
            strcpy(buf, "1");
      }
   } else if (!ast_strlen_zero(args.exten)) {
      int res;
      res = ast_exists_extension(chan, args.context, args.exten, 1, 
         S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
      if (res)
         strcpy(buf, "1");
   } else if (!ast_strlen_zero(args.context)) {
      if (ast_context_find(args.context))
         strcpy(buf, "1");
   } else {
      ast_log(LOG_ERROR, "Invalid arguments provided to DIALPLAN_EXISTS\n");
      return -1;
   }
   
   return 0;
}
static int load_module ( void  ) [static]

Definition at line 120 of file func_dialplan.c.

References ast_custom_function_register.

static int unload_module ( void  ) [static]

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_DEFAULT, } [static]

Definition at line 125 of file func_dialplan.c.

Definition at line 125 of file func_dialplan.c.

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

Definition at line 109 of file func_dialplan.c.