Wed Apr 6 11:30:04 2011

Asterisk developer's documentation


func_iconv.c File Reference

Charset conversions. More...

#include "asterisk.h"
#include <ctype.h>
#include <iconv.h>
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"

Go to the source code of this file.

Defines

#define AST_ICONV_CAST   void *

Functions

static void __reg_module (void)
static void __unreg_module (void)
static int iconv_read (struct ast_channel *chan, const char *cmd, char *arguments, 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 = "Charset conversions" , .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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .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 iconv_function


Detailed Description

Charset conversions.

Author:
Sven Slezak <sunny@mezzo.net>

Definition in file func_iconv.c.


Define Documentation

#define AST_ICONV_CAST   void *

Some systems define the second arg to iconv() as (const char *), while others define it as (char *). Cast it to a (void *) to suppress compiler warnings about it.

Definition at line 75 of file func_iconv.c.

Referenced by iconv_read().


Function Documentation

static void __reg_module ( void   )  [static]

Definition at line 143 of file func_iconv.c.

static void __unreg_module ( void   )  [static]

Definition at line 143 of file func_iconv.c.

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

Definition at line 77 of file func_iconv.c.

References args, AST_APP_ARG, ast_debug, AST_DECLARE_APP_ARGS, AST_ICONV_CAST, ast_log(), AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), errno, LOG_ERROR, LOG_WARNING, parse(), and text.

00078 {
00079    AST_DECLARE_APP_ARGS(args,
00080       AST_APP_ARG(in_charset);
00081       AST_APP_ARG(out_charset);
00082       AST_APP_ARG(text);
00083    );
00084    iconv_t cd;
00085    size_t incount, outcount = len;
00086    char *parse;
00087 
00088    if (ast_strlen_zero(arguments)) {
00089       ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) - missing arguments!\n");
00090       return -1;
00091    }
00092 
00093    parse = ast_strdupa(arguments);
00094    AST_STANDARD_APP_ARGS(args, parse);
00095 
00096    if (args.argc < 3) {
00097       ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) %d\n", args.argc);
00098       return -1;
00099    }
00100 
00101    incount = strlen(args.text);
00102 
00103    ast_debug(1, "Iconv: \"%s\" %s -> %s\n", args.text, args.in_charset, args.out_charset);
00104 
00105    cd = iconv_open(args.out_charset, args.in_charset);
00106 
00107    if (cd == (iconv_t) -1) {
00108       ast_log(LOG_ERROR, "conversion from '%s' to '%s' not available. type 'iconv -l' in a shell to list the supported charsets.\n", args.in_charset, args.out_charset);
00109       return -1;
00110    }
00111 
00112    if (iconv(cd, (AST_ICONV_CAST) &args.text, &incount, &buf, &outcount) == (size_t) -1) {
00113       if (errno == E2BIG)
00114          ast_log(LOG_WARNING, "Iconv: output buffer too small.\n");
00115       else if (errno == EILSEQ)
00116          ast_log(LOG_WARNING,  "Iconv: illegal character.\n");
00117       else if (errno == EINVAL)
00118          ast_log(LOG_WARNING,  "Iconv: incomplete character sequence.\n");
00119       else
00120          ast_log(LOG_WARNING,  "Iconv: error %d: %s.\n", errno, strerror(errno));
00121    }
00122    iconv_close(cd);
00123 
00124    return 0;
00125 }

static int load_module ( void   )  [static]

Definition at line 138 of file func_iconv.c.

References ast_custom_function_register, and iconv_function.

00139 {
00140    return ast_custom_function_register(&iconv_function);
00141 }

static int unload_module ( void   )  [static]

Definition at line 133 of file func_iconv.c.

References ast_custom_function_unregister(), and iconv_function.

00134 {
00135    return ast_custom_function_unregister(&iconv_function);
00136 }


Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Charset conversions" , .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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } [static]

Definition at line 143 of file func_iconv.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 143 of file func_iconv.c.

struct ast_custom_function iconv_function [static]

Initial value:

 {
   .name = "ICONV",
   .read = iconv_read
}

Definition at line 128 of file func_iconv.c.

Referenced by load_module(), and unload_module().


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