newlib-cygwin/newlib/libc/iconv/ces/ucs-2-internal.c

67 lines
2.6 KiB
C

/*-
* 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.
*
* iconv (Charset Conversion Library) v2.0
*/
#include "../lib/deps.h"
#ifdef _ICONV_CONVERTER_UCS_2_INTERNAL
#include "../lib/local.h"
static ssize_t
_DEFUN(convert_from_ucs, (ces, in, outbuf, outbytesleft),
struct iconv_ces *ces _AND
ucs_t in _AND
unsigned char **outbuf _AND
size_t *outbytesleft)
{
if (in == UCS_CHAR_NONE)
return 1; /* No state reinitialization for table charsets */
if (iconv_char32bit(in))
return -1; /* No corresponding character in UCS-2 */
if (*outbytesleft < sizeof(ucs2_t))
return 0; /* No space in the output buffer */
*((ucs2_t *)(*outbuf))++ = in;
(*outbytesleft) -= sizeof(ucs2_t);
return 1;
}
static ucs_t
_DEFUN(convert_to_ucs, (ces, inbuf, inbytesleft),
struct iconv_ces *ces _AND
_CONST unsigned char **inbuf _AND
size_t *inbytesleft)
{
if (*inbytesleft < sizeof(ucs2_t))
return UCS_CHAR_NONE; /* Not enough bytes in the input buffer */
(*inbytesleft) -= sizeof(ucs2_t);
return *((_CONST ucs2_t *)(*inbuf))++;
}
ICONV_CES_STATELESS_MODULE_DECL(ucs_2_internal);
#endif /* #ifdef _ICONV_CONVERTER_UCS_2_INTERNAL */