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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [iconv/] [lib/] [nullconv.c] - Blame information for rev 517

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Line No. Rev Author Line
1 207 jeremybenn 
/*
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 * Copyright (c) 2003-2004, Artem B. Bityuckiy
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 * Copyright (c) 1999,2000, Konstantin Chuguev. All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <_ansi.h>
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#include <reent.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "local.h"
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#include "conv.h"
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static int null_conversion_dummy_data;
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static _VOID_PTR
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_DEFUN(null_conversion_open, (rptr, to, from),
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                             struct _reent *rptr _AND
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                             _CONST char *to     _AND
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                             _CONST char *from)
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{
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  return (_VOID_PTR)&null_conversion_dummy_data;
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}
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static size_t
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_DEFUN(null_conversion_close, (rptr, data),
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                              struct _reent *rptr _AND
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                              _VOID_PTR data)
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{
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  return 0;
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}
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static size_t
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_DEFUN(null_conversion_convert,
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                     (rptr, data, inbuf, inbytesleft, outbuf, outbytesleft),
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                     struct _reent *rptr          _AND
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                     _VOID_PTR data               _AND
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                     _CONST unsigned char **inbuf _AND
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                     size_t *inbytesleft          _AND
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                     unsigned char **outbuf       _AND
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                     size_t *outbytesleft         _AND
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                     int flags)
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{
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  size_t result;
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  size_t len;
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  if (*inbytesleft < *outbytesleft)
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    {
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      result = 0;
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      len = *inbytesleft;
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    }
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  else
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    {
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      result = (size_t)-1;
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      len = *outbytesleft;
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      __errno_r (rptr) = E2BIG;
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    }
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  if ((flags & 1) == 0)
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    memcpy (*outbuf, *inbuf, len);
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  *inbuf        += len;
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  *outbuf       += len;
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  *inbytesleft  -= len;
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  *outbytesleft -= len;
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  return result;
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}
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static int
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_DEFUN(null_conversion_get_mb_cur_max, (data, direction),
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                                       _VOID_PTR data     _AND
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                                       int direction)
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{
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  return ICONV_MB_LEN_MAX;
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}
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static _VOID
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_DEFUN(null_conversion_get_state, (data, state, size),
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                                  _VOID_PTR data   _AND
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                                  mbstate_t *state _AND
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                                  int direction)
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{
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  return;
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}
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static int
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_DEFUN(null_conversion_set_state, (data, state, direction),
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                                  _VOID_PTR data   _AND
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                                  mbstate_t *state _AND
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                                  int direction)
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{
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  return 0;
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}
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static int
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_DEFUN(null_conversion_is_stateful, (data, direction),
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                                    _VOID_PTR data _AND
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                                    int direction)
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{
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  return 0;
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}
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/* Null conversion definition object */
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_CONST iconv_conversion_handlers_t
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_iconv_null_conversion_handlers =
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{
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  null_conversion_open,
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  null_conversion_close,
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  null_conversion_convert,
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  null_conversion_get_state,
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  null_conversion_set_state,
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  null_conversion_get_mb_cur_max,
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  null_conversion_is_stateful
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};
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