2 * Copyright (c) 2002-2004 Tim J. Robbins.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "namespace.h"
35 #include "un-namespace.h"
36 #include "libc_private.h"
41 fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp)
56 if (fp->_r <= 0 && __srefill(fp))
62 nl = memchr(fp->_p, '\n', fp->_r);
63 nconv = __mbsnrtowcs(wsp, &src,
64 nl != NULL ? (nl - fp->_p + 1) : fp->_r,
65 n - 1, &fp->_mbstate);
66 if (nconv == (size_t)-1)
67 /* Conversion error */
71 * We hit a null byte. Increment the character count,
72 * since mbsnrtowcs()'s return value doesn't include
73 * the terminating null, then resume conversion
77 src = memchr(fp->_p, '\0', fp->_r);
80 fp->_r -= (unsigned char *)src - fp->_p;
81 fp->_p = (unsigned char *)src;
84 } while (wsp[-1] != L'\n' && n > 1 && (fp->_r > 0 ||
89 if (!__mbsinit(&fp->_mbstate))
90 /* Incomplete character */