iconv.c File Reference

Samba wrapper/stub for iconv character set conversion. More...

#include <arpa/inet.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <unistd.h>
#include <atalk/byteorder.h>
#include <atalk/logger.h>
#include <atalk/unicode.h>
#include <atalk/util.h>

Macros
#define	CHARSET_WIDECHAR   32
#define	UCS2ICONV   "UCS-2"
#define	DLIST_ADD(list, p)

Functions
static size_t	ascii_pull (void *, char **, size_t *, char **, size_t *)
static size_t	ascii_push (void *, char **, size_t *, char **, size_t *)
static size_t	iconv_copy (void *, char **, size_t *, char **, size_t *)
struct charset_functions *	find_charset_functions (const char *name)
int	atalk_register_charset (struct charset_functions *funcs)
static void	lazy_initialize_iconv (void)
static size_t	sys_iconv (void *cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
size_t	atalk_iconv (atalk_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
atalk_iconv_t	atalk_iconv_open (const char *tocode, const char *fromcode)
int	atalk_iconv_close (atalk_iconv_t cd)
static size_t	ascii_pull (void *cd _U_, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
static size_t	ascii_push (void *cd _U_, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
static size_t	iconv_copy (void *cd _U_, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)

Variables
struct charset_functions	charset_mac_roman
struct charset_functions	charset_mac_hebrew
struct charset_functions	charset_mac_centraleurope
struct charset_functions	charset_mac_cyrillic
struct charset_functions	charset_mac_greek
struct charset_functions	charset_mac_turkish
struct charset_functions	charset_utf8
struct charset_functions	charset_utf8_mac
static struct charset_functions	builtin_functions []
static struct charset_functions *	charsets = NULL

Detailed Description

Samba wrapper/stub for iconv character set conversion.

iconv is the XPG2 interface for converting between character encodings. This file provides a Samba wrapper around it, and also a simple reimplementation that is used if the system does not implement iconv.

Samba only works with encodings that are supersets of ASCII: ascii characters like whitespace can be tested for directly, multibyte sequences start with a byte with the high bit set, and strings are terminated by a nul byte.

Note that the only function provided by iconv is conversion between characters. It doesn't directly support operations like uppercasing or comparison. We have to convert to UCS-2 and compare there.

See also

Samba Developers Guide

Macro Definition Documentation

CHARSET_WIDECHAR

#define CHARSET_WIDECHAR   32

DLIST_ADD

#define DLIST_ADD	(		list,
			p )

Value:

{ \
        if (!(list)) { \
                (list) = (p); \
                (p)->next = (p)->prev = NULL; \
        } else { \
                (list)->prev = (p); \
                (p)->next = (list); \
                (p)->prev = NULL; \
                (list) = (p); \
        }\
}

UCS2ICONV

#define UCS2ICONV   "UCS-2"

Function Documentation

ascii_pull() [1/2]

size_t ascii_pull ( void * , char ** , size_t * , char ** , size_t *  )

static

ascii_pull() [2/2]

size_t ascii_pull ( void *cd _U_, char ** inbuf, size_t * inbytesleft, char ** outbuf, size_t * outbytesleft )

static

ascii_push() [1/2]

size_t ascii_push ( void * , char ** , size_t * , char ** , size_t *  )

static

ascii_push() [2/2]

size_t ascii_push ( void *cd _U_, char ** inbuf, size_t * inbytesleft, char ** outbuf, size_t * outbytesleft )

static

atalk_iconv()

size_t atalk_iconv	(	atalk_iconv_t	cd,
		const char **	inbuf,
		size_t *	inbytesleft,
		char **	outbuf,
		size_t *	outbytesleft )

This is a simple portable iconv() implementaion.

It only knows about a very small number of character sets - just enough that netatalk works on systems that don't have iconv.

atalk_iconv_close()

int atalk_iconv_close

(

atalk_iconv_t

cd

)

atalk_iconv_open()

atalk_iconv_t atalk_iconv_open	(	const char *	tocode,
		const char *	fromcode )

atalk_register_charset()

int atalk_register_charset

(

struct charset_functions *

funcs

)

find_charset_functions()

struct charset_functions * find_charset_functions

(

const char *

name

)

iconv_copy() [1/2]

size_t iconv_copy ( void * , char ** , size_t * , char ** , size_t *  )

static

iconv_copy() [2/2]

size_t iconv_copy ( void *cd _U_, char ** inbuf, size_t * inbytesleft, char ** outbuf, size_t * outbytesleft )

static

lazy_initialize_iconv()

void lazy_initialize_iconv ( void )

static

sys_iconv()

size_t sys_iconv ( void * cd, char ** inbuf, size_t * inbytesleft, char ** outbuf, size_t * outbytesleft )

static

Variable Documentation

builtin_functions

struct charset_functions builtin_functions[]

static

Initial value:

= {
    {"UCS-2",   0, iconv_copy, iconv_copy, CHARSET_WIDECHAR | CHARSET_PRECOMPOSED, NULL, NULL, NULL},
    {"ASCII",     0, ascii_pull, ascii_push, CHARSET_MULTIBYTE | CHARSET_PRECOMPOSED, NULL, NULL, NULL},
    {NULL, 0, NULL, NULL, 0, NULL, NULL, NULL}
}

charset_mac_centraleurope

struct charset_functions charset_mac_centraleurope

extern

charset_mac_cyrillic

struct charset_functions charset_mac_cyrillic

extern

charset_mac_greek

struct charset_functions charset_mac_greek

extern

charset_mac_hebrew

struct charset_functions charset_mac_hebrew

extern

charset_mac_roman

struct charset_functions charset_mac_roman

extern

charset_mac_turkish

struct charset_functions charset_mac_turkish

extern

charset_utf8

struct charset_functions charset_utf8

extern

charset_utf8_mac

struct charset_functions charset_utf8_mac

extern

charsets

struct charset_functions* charsets = NULL

static