Mon Mar 12 2012 21:39:56

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"
Include dependency graph for func_iconv.c:

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 = 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 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 76 of file func_iconv.c.

Referenced by iconv_read().


Function Documentation

static void __reg_module ( void  ) [static]

Definition at line 144 of file func_iconv.c.

static void __unreg_module ( void  ) [static]

Definition at line 144 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 78 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, len(), LOG_ERROR, LOG_WARNING, parse(), and text.

{
   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(in_charset);
      AST_APP_ARG(out_charset);
      AST_APP_ARG(text);
   );
   iconv_t cd;
   size_t incount, outcount = len;
   char *parse;

   if (ast_strlen_zero(arguments)) {
      ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) - missing arguments!\n");
      return -1;
   }

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

   if (args.argc < 3) {
      ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) %d\n", args.argc);
      return -1;
   }

   incount = strlen(args.text);

   ast_debug(1, "Iconv: \"%s\" %s -> %s\n", args.text, args.in_charset, args.out_charset);

   cd = iconv_open(args.out_charset, args.in_charset);

   if (cd == (iconv_t) -1) {
      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);
      return -1;
   }

   if (iconv(cd, (AST_ICONV_CAST) &args.text, &incount, &buf, &outcount) == (size_t) -1) {
      if (errno == E2BIG)
         ast_log(LOG_WARNING, "Iconv: output buffer too small.\n");
      else if (errno == EILSEQ)
         ast_log(LOG_WARNING,  "Iconv: illegal character.\n");
      else if (errno == EINVAL)
         ast_log(LOG_WARNING,  "Iconv: incomplete character sequence.\n");
      else
         ast_log(LOG_WARNING,  "Iconv: error %d: %s.\n", errno, strerror(errno));
   }
   iconv_close(cd);

   return 0;
}
static int load_module ( void  ) [static]

Definition at line 139 of file func_iconv.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 = "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 = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } [static]

Definition at line 144 of file func_iconv.c.

Definition at line 144 of file func_iconv.c.

Initial value:
 {
   .name = "ICONV",
   .read = iconv_read
}

Definition at line 129 of file func_iconv.c.