2 * Copyright (c) 2002-2004 Tim J. Robbins.
5 * Copyright (c) 2011 The FreeBSD Foundation
7 * Portions of this software were developed by David Chisnall
8 * under sponsorship from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "namespace.h"
40 #include "un-namespace.h"
41 #include "libc_private.h"
44 #include "xlocale_private.h"
50 fgetwc_l(FILE *fp
, locale_t locale
)
57 r
= __fgetwc(fp
, locale
);
66 return fgetwc_l(fp
, __get_locale());
70 * Internal (non-MPSAFE) version of fgetwc(). This version takes an
71 * mbstate_t argument specifying the initial conversion state. For
72 * wide streams, this should always be fp->_mbstate. On return, *nread
73 * is set to the number of bytes read.
76 __fgetwc_mbs(FILE *fp
, mbstate_t *mbs
, int *nread
, locale_t locale
)
80 struct xlocale_ctype
*l
= XLOCALE_CTYPE(locale
);
82 if (fp
->_r
<= 0 && __srefill(fp
)) {
86 if (MB_CUR_MAX
== 1) {
87 /* Fast path for single-byte encodings. */
95 nconv
= l
->__mbrtowc(&wc
, fp
->_p
, fp
->_r
, mbs
);
96 if (nconv
== (size_t)-1)
98 else if (nconv
== (size_t)-2)
100 else if (nconv
== 0) {
111 } while (__srefill(fp
) == 0);
112 fp
->_flags
|= __SERR
;