17438fc3aSTim J. Robbins /*- 2*d915a14eSPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*d915a14eSPedro 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 83c87aa1dSDavid Chisnall * All rights reserved. 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 347438fc3aSTim J. Robbins #include <sys/cdefs.h> 357438fc3aSTim J. Robbins __FBSDID("$FreeBSD$"); 367438fc3aSTim J. Robbins 37b6f33850STim J. Robbins #include <stdlib.h> 3874f90defSTim J. Robbins #include <wchar.h> 396155c34aSTim J. Robbins #include "mblocal.h" 407438fc3aSTim J. Robbins 417438fc3aSTim J. Robbins int 423c87aa1dSDavid Chisnall mblen_l(const char *s, size_t n, locale_t locale) 437438fc3aSTim J. Robbins { 4474f90defSTim J. Robbins static const mbstate_t initial; 4574f90defSTim J. Robbins size_t rval; 463c87aa1dSDavid Chisnall FIX_LOCALE(locale); 477438fc3aSTim J. Robbins 4874f90defSTim J. Robbins if (s == NULL) { 4974f90defSTim J. Robbins /* No support for state dependent encodings. */ 503c87aa1dSDavid Chisnall locale->mblen = initial; 5174f90defSTim J. Robbins return (0); 5274f90defSTim J. Robbins } 533c87aa1dSDavid Chisnall rval = XLOCALE_CTYPE(locale)->__mbrtowc(NULL, s, n, &locale->mblen); 5474f90defSTim J. Robbins if (rval == (size_t)-1 || rval == (size_t)-2) 5574f90defSTim J. Robbins return (-1); 5674f90defSTim J. Robbins return ((int)rval); 577438fc3aSTim J. Robbins } 583c87aa1dSDavid Chisnall 593c87aa1dSDavid Chisnall int 603c87aa1dSDavid Chisnall mblen(const char *s, size_t n) 613c87aa1dSDavid Chisnall { 623c87aa1dSDavid Chisnall return mblen_l(s, n, __get_locale()); 633c87aa1dSDavid Chisnall } 64