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559a218c9b
These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2013 Ed Schouten <ed@FreeBSD.org>
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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/queue.h>
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#include <assert.h>
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#include <errno.h>
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#include <langinfo.h>
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#include <uchar.h>
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#include "../iconv/citrus_hash.h"
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#include "../iconv/citrus_module.h"
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#include "../iconv/citrus_iconv.h"
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#include "mblocal.h"
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typedef struct {
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bool initialized;
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struct _citrus_iconv iconv;
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union {
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charXX_t widechar[SRCBUF_LEN];
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char bytes[sizeof(charXX_t) * SRCBUF_LEN];
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} srcbuf;
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size_t srcbuf_len;
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} _ConversionState;
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_Static_assert(sizeof(_ConversionState) <= sizeof(mbstate_t),
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"Size of _ConversionState must not exceed mbstate_t's size.");
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size_t
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cXXrtomb_l(char * __restrict s, charXX_t c, mbstate_t * __restrict ps,
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locale_t locale)
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{
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_ConversionState *cs;
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struct _citrus_iconv *handle;
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char *src, *dst;
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size_t srcleft, dstleft, invlen;
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int err;
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FIX_LOCALE(locale);
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if (ps == NULL)
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ps = &(XLOCALE_CTYPE(locale)->cXXrtomb);
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cs = (_ConversionState *)ps;
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handle = &cs->iconv;
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/* Reinitialize mbstate_t. */
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if (s == NULL || !cs->initialized) {
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if (_citrus_iconv_open(&handle, UTF_XX_INTERNAL,
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nl_langinfo_l(CODESET, locale)) != 0) {
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cs->initialized = false;
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errno = EINVAL;
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return (-1);
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}
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cs->srcbuf_len = 0;
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cs->initialized = true;
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if (s == NULL)
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return (1);
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}
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assert(cs->srcbuf_len < sizeof(cs->srcbuf.widechar) / sizeof(charXX_t));
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cs->srcbuf.widechar[cs->srcbuf_len++] = c;
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/* Perform conversion. */
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src = cs->srcbuf.bytes;
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srcleft = cs->srcbuf_len * sizeof(charXX_t);
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dst = s;
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dstleft = MB_CUR_MAX_L(locale);
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err = _citrus_iconv_convert(handle, &src, &srcleft, &dst, &dstleft,
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_CITRUS_ICONV_F_HIDE_INVALID, &invlen);
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/* Character is part of a surrogate pair. We need more input. */
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if (err == EINVAL)
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return (0);
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cs->srcbuf_len = 0;
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/* Illegal sequence. */
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if (dst == s) {
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errno = EILSEQ;
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return ((size_t)-1);
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}
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return (dst - s);
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}
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size_t
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cXXrtomb(char * __restrict s, charXX_t c, mbstate_t * __restrict ps)
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{
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return (cXXrtomb_l(s, c, ps, __get_locale()));
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}
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