puts.c revision 21673
1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#if defined(LIBC_SCCS) && !defined(lint) 38#if 0 39static char sccsid[] = "@(#)puts.c 8.1 (Berkeley) 6/4/93"; 40#endif 41static const char rcsid[] = 42 "$FreeBSD: head/lib/libc/stdio/puts.c 21673 1997-01-14 07:20:47Z jkh $"; 43#endif /* LIBC_SCCS and not lint */ 44 45#include <stdio.h> 46#include <string.h> 47#include "fvwrite.h" 48#ifdef _THREAD_SAFE 49#include <pthread.h> 50#include "pthread_private.h" 51#endif 52 53/* 54 * Write the given string to stdout, appending a newline. 55 */ 56int 57puts(s) 58 char const *s; 59{ 60 int retval; 61 size_t c = strlen(s); 62 struct __suio uio; 63 struct __siov iov[2]; 64 65 iov[0].iov_base = (void *)s; 66 iov[0].iov_len = c; 67 iov[1].iov_base = "\n"; 68 iov[1].iov_len = 1; 69 uio.uio_resid = c + 1; 70 uio.uio_iov = &iov[0]; 71 uio.uio_iovcnt = 2; 72#ifdef _THREAD_SAFE 73 _thread_flockfile(stdout,__FILE__,__LINE__); 74#endif 75 retval = __sfvwrite(stdout, &uio) ? EOF : '\n'; 76#ifdef _THREAD_SAFE 77 _thread_funlockfile(stdout); 78#endif 79 return (retval); 80} 81