17438fc3aSTim J. Robbins /*-
2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause
3d915a14eSPedro F. Giffuni *
474f90defSTim J. Robbins * Copyright (c) 2002-2004 Tim J. Robbins.
5b85aa4e3STim J. Robbins * All rights reserved.
67438fc3aSTim J. Robbins *
73c87aa1dSDavid Chisnall * Copyright (c) 2011 The FreeBSD Foundation
85b5fa75aSEd Maste *
93c87aa1dSDavid Chisnall * Portions of this software were developed by David Chisnall
103c87aa1dSDavid Chisnall * under sponsorship from the FreeBSD Foundation.
113c87aa1dSDavid Chisnall *
127438fc3aSTim J. Robbins * Redistribution and use in source and binary forms, with or without
137438fc3aSTim J. Robbins * modification, are permitted provided that the following conditions
147438fc3aSTim J. Robbins * are met:
157438fc3aSTim J. Robbins * 1. Redistributions of source code must retain the above copyright
167438fc3aSTim J. Robbins * notice, this list of conditions and the following disclaimer.
177438fc3aSTim J. Robbins * 2. Redistributions in binary form must reproduce the above copyright
187438fc3aSTim J. Robbins * notice, this list of conditions and the following disclaimer in the
197438fc3aSTim J. Robbins * documentation and/or other materials provided with the distribution.
207438fc3aSTim J. Robbins *
21b85aa4e3STim J. Robbins * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
227438fc3aSTim J. Robbins * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
237438fc3aSTim J. Robbins * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24b85aa4e3STim J. Robbins * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
257438fc3aSTim J. Robbins * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
267438fc3aSTim J. Robbins * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
277438fc3aSTim J. Robbins * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
287438fc3aSTim J. Robbins * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
297438fc3aSTim J. Robbins * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
307438fc3aSTim J. Robbins * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
317438fc3aSTim J. Robbins * SUCH DAMAGE.
327438fc3aSTim J. Robbins */
337438fc3aSTim J. Robbins
34b6f33850STim J. Robbins #include <stdlib.h>
3574f90defSTim J. Robbins #include <wchar.h>
366155c34aSTim J. Robbins #include "mblocal.h"
377438fc3aSTim J. Robbins
387438fc3aSTim J. Robbins int
mblen_l(const char * s,size_t n,locale_t locale)393c87aa1dSDavid Chisnall mblen_l(const char *s, size_t n, locale_t locale)
407438fc3aSTim J. Robbins {
4174f90defSTim J. Robbins static const mbstate_t initial;
4274f90defSTim J. Robbins size_t rval;
433c87aa1dSDavid Chisnall FIX_LOCALE(locale);
447438fc3aSTim J. Robbins
4574f90defSTim J. Robbins if (s == NULL) {
4674f90defSTim J. Robbins /* No support for state dependent encodings. */
479eb7d595SYuri Pankov XLOCALE_CTYPE(locale)->mblen = initial;
4874f90defSTim J. Robbins return (0);
4974f90defSTim J. Robbins }
509eb7d595SYuri Pankov rval = XLOCALE_CTYPE(locale)->__mbrtowc(NULL, s, n,
519eb7d595SYuri Pankov &(XLOCALE_CTYPE(locale)->mblen));
5274f90defSTim J. Robbins if (rval == (size_t)-1 || rval == (size_t)-2)
5374f90defSTim J. Robbins return (-1);
5474f90defSTim J. Robbins return ((int)rval);
557438fc3aSTim J. Robbins }
563c87aa1dSDavid Chisnall
573c87aa1dSDavid Chisnall int
mblen(const char * s,size_t n)583c87aa1dSDavid Chisnall mblen(const char *s, size_t n)
593c87aa1dSDavid Chisnall {
603c87aa1dSDavid Chisnall return mblen_l(s, n, __get_locale());
613c87aa1dSDavid Chisnall }
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