Fri Jun 19 12:10:03 2009

Asterisk developer's documentation


app_transfer.c File Reference

Transfer a caller. More...

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

Go to the source code of this file.

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int load_module (void)
static int transfer_exec (struct ast_channel *chan, void *data)
static int unload_module (void)

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Transfers a caller to another extension" , .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 = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, }
static const char * app = "Transfer"
static struct ast_module_infoast_module_info = &__mod_info
static const char * descrip
static const char * synopsis = "Transfer caller to remote extension"


Detailed Description

Transfer a caller.

Author:
Mark Spencer <markster@digium.com>
Requires transfer support from channel driver

Definition in file app_transfer.c.


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 121 of file app_transfer.c.

static void __unreg_module ( void   )  [static]

Definition at line 121 of file app_transfer.c.

static int load_module ( void   )  [static]

Definition at line 116 of file app_transfer.c.

References ast_register_application, and transfer_exec().

00117 {
00118    return ast_register_application(app, transfer_exec, synopsis, descrip);
00119 }

static int transfer_exec ( struct ast_channel chan,
void *  data 
) [static]

Definition at line 56 of file app_transfer.c.

References AST_APP_ARG, AST_DECLARE_APP_ARGS, ast_log(), AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), ast_transfer(), chan, len(), LOG_WARNING, parse(), pbx_builtin_setvar_helper(), status, ast_channel::tech, ast_channel_tech::transfer, and ast_channel_tech::type.

Referenced by load_module().

00057 {
00058    int res;
00059    int len;
00060    char *slash;
00061    char *tech = NULL;
00062    char *dest = NULL;
00063    char *status;
00064    char *parse;
00065    AST_DECLARE_APP_ARGS(args,
00066       AST_APP_ARG(dest);
00067    );
00068 
00069    if (ast_strlen_zero((char *)data)) {
00070       ast_log(LOG_WARNING, "Transfer requires an argument ([Tech/]destination)\n");
00071       pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "FAILURE");
00072       return 0;
00073    } else
00074       parse = ast_strdupa(data);
00075 
00076    AST_STANDARD_APP_ARGS(args, parse);
00077 
00078    dest = args.dest;
00079 
00080    if ((slash = strchr(dest, '/')) && (len = (slash - dest))) {
00081       tech = dest;
00082       dest = slash + 1;
00083       /* Allow execution only if the Tech/destination agrees with the type of the channel */
00084       if (strncasecmp(chan->tech->type, tech, len)) {
00085          pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "FAILURE");
00086          return 0;
00087       }
00088    }
00089 
00090    /* Check if the channel supports transfer before we try it */
00091    if (!chan->tech->transfer) {
00092       pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "UNSUPPORTED");
00093       return 0;
00094    }
00095 
00096    res = ast_transfer(chan, dest);
00097 
00098    if (res < 0) {
00099       status = "FAILURE";
00100       res = 0;
00101    } else {
00102       status = "SUCCESS";
00103       res = 0;
00104    }
00105 
00106    pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", status);
00107 
00108    return res;
00109 }

static int unload_module ( void   )  [static]

Definition at line 111 of file app_transfer.c.

References ast_unregister_application().

00112 {
00113    return ast_unregister_application(app);
00114 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Transfers a caller to another extension" , .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 = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, } [static]

Definition at line 121 of file app_transfer.c.

const char* app = "Transfer" [static]

Definition at line 40 of file app_transfer.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 121 of file app_transfer.c.

const char* descrip [static]

Definition at line 44 of file app_transfer.c.

const char* synopsis = "Transfer caller to remote extension" [static]

Definition at line 42 of file app_transfer.c.


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