Wed Jan 27 20:02:40 2016

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

 AST_MODULE_INFO_STANDARD (ASTERISK_GPL_KEY,"Charset conversions")
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_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

AST_MODULE_INFO_STANDARD ( ASTERISK_GPL_KEY  ,
"Charset conversions"   
)
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, LOG_ERROR, LOG_WARNING, parse(), and text.

00079 {
00080    AST_DECLARE_APP_ARGS(args,
00081       AST_APP_ARG(in_charset);
00082       AST_APP_ARG(out_charset);
00083       AST_APP_ARG(text);
00084    );
00085    iconv_t cd;
00086    size_t incount, outcount = len;
00087    char *parse;
00088 
00089    if (ast_strlen_zero(arguments)) {
00090       ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) - missing arguments!\n");
00091       return -1;
00092    }
00093 
00094    parse = ast_strdupa(arguments);
00095    AST_STANDARD_APP_ARGS(args, parse);
00096 
00097    if (args.argc < 3) {
00098       ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) %u\n", args.argc);
00099       return -1;
00100    }
00101 
00102    incount = strlen(args.text);
00103 
00104    ast_debug(1, "Iconv: \"%s\" %s -> %s\n", args.text, args.in_charset, args.out_charset);
00105 
00106    cd = iconv_open(args.out_charset, args.in_charset);
00107 
00108    if (cd == (iconv_t) -1) {
00109       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);
00110       return -1;
00111    }
00112 
00113    if (iconv(cd, (AST_ICONV_CAST) &args.text, &incount, &buf, &outcount) == (size_t) -1) {
00114       if (errno == E2BIG)
00115          ast_log(LOG_WARNING, "Iconv: output buffer too small.\n");
00116       else if (errno == EILSEQ)
00117          ast_log(LOG_WARNING,  "Iconv: illegal character.\n");
00118       else if (errno == EINVAL)
00119          ast_log(LOG_WARNING,  "Iconv: incomplete character sequence.\n");
00120       else
00121          ast_log(LOG_WARNING,  "Iconv: error %d: %s.\n", errno, strerror(errno));
00122    }
00123    iconv_close(cd);
00124 
00125    return 0;
00126 }

static int load_module ( void   )  [static]

Definition at line 139 of file func_iconv.c.

References ast_custom_function_register.

00140 {
00141    return ast_custom_function_register(&iconv_function);
00142 }

static int unload_module ( void   )  [static]

Definition at line 134 of file func_iconv.c.

References ast_custom_function_unregister().

00135 {
00136    return ast_custom_function_unregister(&iconv_function);
00137 }


Variable Documentation

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

Definition at line 129 of file func_iconv.c.


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