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 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if defined(LIBC_SCCS) && !defined(lint) 34static char sccsid[] = "@(#)puts.c 8.1 (Berkeley) 6/4/93"; 35#endif /* LIBC_SCCS and not lint */ 36#include <sys/cdefs.h> 37__FBSDID("$FreeBSD: src/lib/libc/stdio/puts.c,v 1.11 2007/01/09 00:28:07 imp Exp $"); 38 39#include "namespace.h" 40#include <stdio.h> 41#include <string.h> 42#include "un-namespace.h" 43#include "fvwrite.h" 44#include "libc_private.h" 45#include "local.h" 46 47// 3340719: __puts_null__ is used if string is NULL. Shared by fputs.c 48__private_extern__ char const __puts_null__[] = "(null)"; 49 50/* 51 * Write the given string to stdout, appending a newline. 52 */ 53int 54puts(s) 55 char const *s; 56{ 57 int retval; 58 size_t c; 59 struct __suio uio; 60 struct __siov iov[2]; 61 62 // 3340719: __puts_null__ is used if s is NULL 63 if(s == NULL) 64 s = __puts_null__; 65 iov[0].iov_base = (void *)s; 66 iov[0].iov_len = c = strlen(s); 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 FLOCKFILE(stdout); 73 ORIENT(stdout, -1); 74 retval = __sfvwrite(stdout, &uio) ? EOF : '\n'; 75 FUNLOCKFILE(stdout); 76 return (retval); 77} 78