1 /* $NetBSD: fputwc.c,v 1.4 2005/06/12 05:21:27 lukem Exp $ */ 2 /* $DragonFly: src/lib/libc/stdio/fputwc.c,v 1.1 2005/07/25 00:37:41 joerg 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 "namespace.h" 33 #include <assert.h> 34 #include <errno.h> 35 #include <limits.h> 36 #include <stdio.h> 37 #include <wchar.h> 38 #include "un-namespace.h" 39 40 #include "libc_private.h" 41 #include "local.h" 42 #include "priv_stdio.h" 43 44 wint_t 45 __fputwc_unlock(wchar_t wc, FILE *fp) 46 { 47 struct wchar_io_data *wcio; 48 mbstate_t *st; 49 size_t size; 50 char buf[MB_LEN_MAX]; 51 struct __suio uio; 52 struct __siov iov; 53 54 _DIAGASSERT(fp != NULL); 55 56 /* LINTED we don't play with buf */ 57 iov.iov_base = (void *)buf; 58 uio.uio_iov = &iov; 59 uio.uio_iovcnt = 1; 60 61 _SET_ORIENTATION(fp, 1); 62 wcio = WCIO_GET(fp); 63 if (wcio == 0) { 64 errno = ENOMEM; 65 return WEOF; 66 } 67 68 wcio->wcio_ungetwc_inbuf = 0; 69 st = &wcio->wcio_mbstate_out; 70 71 size = wcrtomb(buf, wc, st); 72 if (size == (size_t)-1) { 73 errno = EILSEQ; 74 return WEOF; 75 } 76 77 _DIAGASSERT(size != 0); 78 79 uio.uio_resid = iov.iov_len = size; 80 if (__sfvwrite(fp, &uio)) { 81 return WEOF; 82 } 83 84 return (wint_t)wc; 85 } 86 87 wint_t 88 fputwc(wchar_t wc, FILE *fp) 89 { 90 wint_t r; 91 92 _DIAGASSERT(fp != NULL); 93 94 FLOCKFILE(fp); 95 r = __fputwc_unlock(wc, fp); 96 FUNLOCKFILE(fp); 97 98 return (r); 99 } 100