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.

Macros
#define	AST_ICONV_CAST   void *

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
struct ast_module *	AST_MODULE_SELF_SYM (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, .support_level = AST_MODULE_SUPPORT_CORE, }
static const struct ast_module_info *	ast_module_info = &__mod_info
static struct ast_custom_function	iconv_function

Detailed Description

Charset conversions.

Author

Sven Slezak sunny.nosp@m.@mez.nosp@m.zo.ne.nosp@m.t

Definition in file func_iconv.c.

Macro Definition Documentation

AST_ICONV_CAST

#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 74 of file func_iconv.c.

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 143 of file func_iconv.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 143 of file func_iconv.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 143 of file func_iconv.c.

iconv_read()

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

static

Definition at line 76 of file func_iconv.c.

{
    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 - 1;
    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>) %u\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));
    }
    *buf = '\0';
    iconv_close(cd);
 
    return 0;
}

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(), buf, errno, len(), LOG_ERROR, LOG_WARNING, and text.

load_module()

static int load_module ( void  )

static

Definition at line 138 of file func_iconv.c.

{
    return ast_custom_function_register(&iconv_function);
}

References ast_custom_function_register, and iconv_function.

unload_module()

static int unload_module ( void  )

static

Definition at line 133 of file func_iconv.c.

{
    return ast_custom_function_unregister(&iconv_function);
}

References ast_custom_function_unregister(), and iconv_function.

Variable Documentation

__mod_info

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, .support_level = AST_MODULE_SUPPORT_CORE, }

static

Definition at line 143 of file func_iconv.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 143 of file func_iconv.c.

iconv_function

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().