wctob.c revision 129154
1101267Stjr/*- 2127944Stjr * Copyright (c) 2002-2004 Tim J. Robbins. 3101267Stjr * All rights reserved. 4101267Stjr * 5101267Stjr * Redistribution and use in source and binary forms, with or without 6101267Stjr * modification, are permitted provided that the following conditions 7101267Stjr * are met: 8101267Stjr * 1. Redistributions of source code must retain the above copyright 9101267Stjr * notice, this list of conditions and the following disclaimer. 10101267Stjr * 2. Redistributions in binary form must reproduce the above copyright 11101267Stjr * notice, this list of conditions and the following disclaimer in the 12101267Stjr * documentation and/or other materials provided with the distribution. 13101267Stjr * 14101267Stjr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15101267Stjr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16101267Stjr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17101267Stjr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18101267Stjr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19101267Stjr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20101267Stjr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21101267Stjr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22101267Stjr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23101267Stjr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24101267Stjr * SUCH DAMAGE. 25101267Stjr */ 26101267Stjr 27101267Stjr#include <sys/cdefs.h> 28101267Stjr__FBSDID("$FreeBSD: head/lib/libc/locale/wctob.c 129154 2004-05-12 14:26:54Z tjr $"); 29101267Stjr 30118589Stjr#include <limits.h> 31118589Stjr#include <stdio.h> 32101267Stjr#include <wchar.h> 33129154Stjr#include "mblocal.h" 34101267Stjr 35101267Stjrint 36101267Stjrwctob(wint_t c) 37101267Stjr{ 38127944Stjr static const mbstate_t initial; 39127944Stjr mbstate_t mbs = initial; 40118589Stjr char buf[MB_LEN_MAX]; 41101267Stjr 42129154Stjr if (c == WEOF || __wcrtomb(buf, c, &mbs) != 1) 43101267Stjr return (EOF); 44118589Stjr return ((unsigned char)*buf); 45101267Stjr} 46