3c87aa1d3d
load of _l suffixed versions of various standard library functions that use the global locale, making them take an explicit locale parameter. Also adds support for per-thread locales. This work was funded by the FreeBSD Foundation. Please test any code you have that uses the C standard locale functions! Reviewed by: das (gdtoa changes) Approved by: dim (mentor)
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*-
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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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* All rights reserved.
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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 <stdio.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 "xlocale_private.h"
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wchar_t *
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fgetwln_l(FILE * __restrict fp, size_t *lenp, locale_t locale)
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{
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wint_t wc;
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size_t len;
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FIX_LOCALE(locale);
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FLOCKFILE(fp);
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ORIENT(fp, 1);
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len = 0;
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while ((wc = __fgetwc(fp, locale)) != WEOF) {
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#define GROW 512
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if (len * sizeof(wchar_t) >= fp->_lb._size &&
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__slbexpand(fp, (len + GROW) * sizeof(wchar_t)))
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goto error;
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*((wchar_t *)fp->_lb._base + len++) = wc;
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if (wc == L'\n')
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break;
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}
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if (len == 0)
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goto error;
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FUNLOCKFILE(fp);
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*lenp = len;
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return ((wchar_t *)fp->_lb._base);
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error:
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FUNLOCKFILE(fp);
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*lenp = 0;
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return (NULL);
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}
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wchar_t *
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fgetwln(FILE * __restrict fp, size_t *lenp)
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{
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return fgetwln_l(fp, lenp, __get_locale());
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}
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