1 /* $OpenBSD: puts.c,v 1.12 2015/08/31 02:53:57 guenther Exp $ */ 2 /*- 3 * Copyright (c) 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <stdio.h> 35 #include <string.h> 36 #include "local.h" 37 #include "fvwrite.h" 38 39 /* 40 * Write the given string to stdout, appending a newline. 41 */ 42 int 43 puts(const char *s) 44 { 45 size_t c = strlen(s); 46 struct __suio uio; 47 struct __siov iov[2]; 48 int ret; 49 50 iov[0].iov_base = (void *)s; 51 iov[0].iov_len = c; 52 iov[1].iov_base = "\n"; 53 iov[1].iov_len = 1; 54 uio.uio_resid = c + 1; 55 uio.uio_iov = &iov[0]; 56 uio.uio_iovcnt = 2; 57 FLOCKFILE(stdout); 58 _SET_ORIENTATION(stdout, -1); 59 ret = __sfvwrite(stdout, &uio); 60 FUNLOCKFILE(stdout); 61 return (ret ? EOF : '\n'); 62 } 63 DEF_STRONG(puts); 64