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5b5fa75acf
This has already been done for most files that have the Foundation as the only listed copyright holder. Do it now for files that list multiple copyright holders, but have the Foundation copyright in its own section. Sponsored by: The FreeBSD Foundation
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002-2004 Tim J. Robbins.
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* All rights reserved.
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*
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* Copyright (c) 2011 The FreeBSD Foundation
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*
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* Portions of this software were developed by David Chisnall
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* under sponsorship from the FreeBSD Foundation.
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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 "namespace.h"
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <wchar.h>
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#include "un-namespace.h"
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#include "libc_private.h"
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#include "local.h"
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#include "mblocal.h"
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wchar_t *
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fgetws_l(wchar_t * __restrict ws, int n, FILE * __restrict fp, locale_t locale)
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{
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int sret;
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wchar_t *wsp, *ret;
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size_t nconv;
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const char *src;
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unsigned char *nl;
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FIX_LOCALE(locale);
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struct xlocale_ctype *l = XLOCALE_CTYPE(locale);
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FLOCKFILE_CANCELSAFE(fp);
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ORIENT(fp, 1);
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if (n <= 0) {
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fp->_flags |= __SERR;
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errno = EINVAL;
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goto error;
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}
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wsp = ws;
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if (n == 1)
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goto ok;
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if (fp->_r <= 0 && __srefill(fp))
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/* EOF or ferror */
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goto error;
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sret = 0;
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do {
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src = fp->_p;
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nl = memchr(fp->_p, '\n', fp->_r);
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nconv = l->__mbsnrtowcs(wsp, &src,
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nl != NULL ? (nl - fp->_p + 1) : fp->_r,
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n - 1, &fp->_mbstate);
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if (nconv == (size_t)-1) {
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/* Conversion error */
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fp->_flags |= __SERR;
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goto error;
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}
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if (src == NULL) {
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/*
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* We hit a null byte. Increment the character count,
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* since mbsnrtowcs()'s return value doesn't include
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* the terminating null, then resume conversion
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* after the null.
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*/
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nconv++;
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src = memchr(fp->_p, '\0', fp->_r);
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src++;
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}
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fp->_r -= (unsigned char *)src - fp->_p;
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fp->_p = (unsigned char *)src;
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n -= nconv;
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wsp += nconv;
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} while ((wsp == ws || wsp[-1] != L'\n') && n > 1 && (fp->_r > 0 ||
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(sret = __srefill(fp)) == 0));
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if (sret && !__sfeof(fp))
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/* ferror */
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goto error;
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if (!l->__mbsinit(&fp->_mbstate)) {
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/* Incomplete character */
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fp->_flags |= __SERR;
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errno = EILSEQ;
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goto error;
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}
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if (wsp == ws)
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/* EOF */
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goto error;
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ok:
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*wsp = L'\0';
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ret = ws;
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end:
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FUNLOCKFILE_CANCELSAFE();
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return (ret);
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error:
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ret = NULL;
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goto end;
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}
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wchar_t *
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fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp)
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{
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return fgetws_l(ws, n, fp, __get_locale());
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}
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