1/* $OpenBSD: fputwc.c,v 1.4 2009/11/09 00:18:27 kurt Exp $ */ 2/* $NetBSD: fputwc.c,v 1.3 2003/03/07 07:11:37 tshiozak Exp $ */ 3 4/*- 5 * Copyright (c)2001 Citrus Project, 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $Citrus$ 30 */ 31 32#include <errno.h> 33#include <limits.h> 34#include <stdio.h> 35#include <wchar.h> 36#include "local.h" 37#include "fvwrite.h" 38 39wint_t 40__fputwc_unlock(wchar_t wc, FILE *fp) 41{ 42 struct wchar_io_data *wcio; 43 mbstate_t *st; 44 size_t size; 45 char buf[MB_LEN_MAX]; 46 struct __suio uio; 47 struct __siov iov; 48 49 /* LINTED we don't play with buf */ 50 iov.iov_base = (void *)buf; 51 uio.uio_iov = &iov; 52 uio.uio_iovcnt = 1; 53 54 _SET_ORIENTATION(fp, 1); 55 wcio = WCIO_GET(fp); 56 if (wcio == 0) { 57 errno = ENOMEM; 58 return WEOF; 59 } 60 61 wcio->wcio_ungetwc_inbuf = 0; 62 st = &wcio->wcio_mbstate_out; 63 64 size = wcrtomb(buf, wc, st); 65 if (size == (size_t)-1) { 66 errno = EILSEQ; 67 return WEOF; 68 } 69 70 uio.uio_resid = iov.iov_len = size; 71 if (__sfvwrite(fp, &uio)) { 72 return WEOF; 73 } 74 75 return (wint_t)wc; 76} 77 78wint_t 79fputwc(wchar_t wc, FILE *fp) 80{ 81 wint_t r; 82 83 FLOCKFILE(fp); 84 r = __fputwc_unlock(wc, fp); 85 FUNLOCKFILE(fp); 86 87 return (r); 88} 89