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/*
* Copyright (c) 2003-2004, Artem B. Bityuckiy
* Copyright (c) 1999,2000, Konstantin Chuguev. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <_ansi.h>
#include <reent.h>
#include <sys/types.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "local.h"
#include "conv.h"
static int null_conversion_dummy_data;
static _VOID_PTR
_DEFUN(null_conversion_open, (rptr, to, from),
struct _reent *rptr _AND
_CONST char *to _AND
_CONST char *from)
{
return (_VOID_PTR)&null_conversion_dummy_data;
}
static size_t
_DEFUN(null_conversion_close, (rptr, data),
struct _reent *rptr _AND
_VOID_PTR data)
{
return 0;
}
static size_t
_DEFUN(null_conversion_convert,
(rptr, data, inbuf, inbytesleft, outbuf, outbytesleft),
struct _reent *rptr _AND
_VOID_PTR data _AND
_CONST unsigned char **inbuf _AND
size_t *inbytesleft _AND
unsigned char **outbuf _AND
size_t *outbytesleft _AND
int flags)
{
size_t result;
size_t len;
if (*inbytesleft < *outbytesleft)
{
result = 0;
len = *inbytesleft;
}
else
{
result = (size_t)-1;
len = *outbytesleft;
__errno_r (rptr) = E2BIG;
}
if ((flags & 1) == 0)
memcpy (*outbuf, *inbuf, len);
*inbuf += len;
*outbuf += len;
*inbytesleft -= len;
*outbytesleft -= len;
return result;
}
static int
_DEFUN(null_conversion_get_mb_cur_max, (data, direction),
_VOID_PTR data _AND
int direction)
{
return ICONV_MB_LEN_MAX;
}
static _VOID
_DEFUN(null_conversion_get_state, (data, state, size),
_VOID_PTR data _AND
mbstate_t *state _AND
int direction)
{
return;
}
static int
_DEFUN(null_conversion_set_state, (data, state, direction),
_VOID_PTR data _AND
mbstate_t *state _AND
int direction)
{
return 0;
}
static int
_DEFUN(null_conversion_is_stateful, (data, direction),
_VOID_PTR data _AND
int direction)
{
return 0;
}
/* Null conversion definition object */
_CONST iconv_conversion_handlers_t
_iconv_null_conversion_handlers =
{
null_conversion_open,
null_conversion_close,
null_conversion_convert,
null_conversion_get_state,
null_conversion_set_state,
null_conversion_get_mb_cur_max,
null_conversion_is_stateful
};
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