| | 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) |
| | 34 | static 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 | */ |
| | 53 | int |
| | 54 | puts(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 | } |
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