2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2002-2004 Tim J. Robbins.
7 * Copyright (c) 2011 The FreeBSD Foundation
9 * Portions of this software were developed by David Chisnall
10 * under sponsorship from the FreeBSD Foundation.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include "namespace.h"
42 #include "un-namespace.h"
43 #include "libc_private.h"
48 fgetws_l(wchar_t * __restrict ws, int n, FILE * __restrict fp, locale_t locale)
56 struct xlocale_ctype *l = XLOCALE_CTYPE(locale);
58 FLOCKFILE_CANCELSAFE(fp);
71 if (fp->_r <= 0 && __srefill(fp))
78 nl = memchr(fp->_p, '\n', fp->_r);
79 nconv = l->__mbsnrtowcs(wsp, &src,
80 nl != NULL ? (nl - fp->_p + 1) : fp->_r,
81 n - 1, &fp->_mbstate);
82 if (nconv == (size_t)-1) {
83 /* Conversion error */
89 * We hit a null byte. Increment the character count,
90 * since mbsnrtowcs()'s return value doesn't include
91 * the terminating null, then resume conversion
95 src = memchr(fp->_p, '\0', fp->_r);
98 fp->_r -= (unsigned char *)src - fp->_p;
99 fp->_p = (unsigned char *)src;
102 } while ((wsp == ws || wsp[-1] != L'\n') && n > 1 && (fp->_r > 0 ||
103 (sret = __srefill(fp)) == 0));
104 if (sret && !__sfeof(fp))
107 if (!l->__mbsinit(&fp->_mbstate)) {
108 /* Incomplete character */
109 fp->_flags |= __SERR;
120 FUNLOCKFILE_CANCELSAFE();
129 fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp)
131 return fgetws_l(ws, n, fp, __get_locale());