1 /* $OpenBSD: fputwc.c,v 1.6 2015/10/01 02:32:07 guenther 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 39 wint_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 iov.iov_base = buf; 50 uio.uio_iov = &iov; 51 uio.uio_iovcnt = 1; 52 53 _SET_ORIENTATION(fp, 1); 54 wcio = WCIO_GET(fp); 55 if (wcio == 0) { 56 errno = ENOMEM; 57 return WEOF; 58 } 59 60 wcio->wcio_ungetwc_inbuf = 0; 61 st = &wcio->wcio_mbstate_out; 62 63 size = wcrtomb(buf, wc, st); 64 if (size == (size_t)-1) { 65 errno = EILSEQ; 66 return WEOF; 67 } 68 69 uio.uio_resid = iov.iov_len = size; 70 if (__sfvwrite(fp, &uio)) { 71 return WEOF; 72 } 73 74 return (wint_t)wc; 75 } 76 77 wint_t 78 fputwc(wchar_t wc, FILE *fp) 79 { 80 wint_t r; 81 82 FLOCKFILE(fp); 83 r = __fputwc_unlock(wc, fp); 84 FUNLOCKFILE(fp); 85 86 return (r); 87 } 88 DEF_STRONG(fputwc); 89
