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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libc/] [iconv/] [lib/] [nullconv.c] - Rev 859
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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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