d4f6cd06dd
as wrappers around the deprecated 4.4BSD rune functions. This paves the way for state-dependent encodings, which the rune API does not support. - Add __emulated_sgetrune() and __emulated_sputrune(), which are implementations of sgetrune() and sputrune() in terms of mbrtowc() and wcrtomb(). - Rename the old rune-wrapper mbrtowc() and wcrtomb() functions to __emulated_mbrtowc() and __emulated_wcrtomb(). - Add __mbrtowc and __wcrtomb function pointers, which point to the current locale's conversion functions, or the __emulated versions. - Implement mbrtowc() and wcrtomb() as calls to these function pointers. - Make the "NONE" encoding implement mbrtowc() and wcrtomb() directly. All of this emulation mess will be removed, together with rune support, in FreeBSD 6.
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*-
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* Copyright (c) 2002, 2003 Tim J. Robbins.
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* 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 <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <errno.h>
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#include <limits.h>
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#include <rune.h>
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#include <stdlib.h>
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#include <wchar.h>
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extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
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size_t
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wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps)
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{
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return (__wcrtomb(s, wc, ps));
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}
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/*
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* Emulate the ISO C wcrtomb() function in terms of the deprecated
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* 4.4BSD sputrune() function.
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*/
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size_t
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__emulated_wcrtomb(char * __restrict s, wchar_t wc,
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mbstate_t * __restrict ps __unused)
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{
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char *e;
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char buf[MB_LEN_MAX];
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if (s == NULL) {
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s = buf;
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wc = L'\0';
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}
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sputrune(wc, s, MB_CUR_MAX, &e);
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if (e == NULL) {
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errno = EILSEQ;
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return ((size_t)-1);
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}
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return ((size_t)(e - s));
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}
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