2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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
29 * @(#)perror.c 8.1 (Berkeley) 6/4/93
30 * $FreeBSD: src/lib/libc/stdio/perror.c,v 1.9 2007/01/09 00:28:07 imp Exp $
33 #include "namespace.h"
34 #include <sys/types.h>
41 #include "un-namespace.h"
42 #include "libc_private.h"
48 char msgbuf
[NL_TEXTMAX
];
53 if (s
!= NULL
&& *s
!= '\0') {
54 v
->iov_base
= __DECONST(char *, s
);
55 v
->iov_len
= strlen(s
);
57 v
->iov_base
= __DECONST(char *, ": ");
61 strerror_r(errno
, msgbuf
, sizeof(msgbuf
));
63 v
->iov_len
= strlen(v
->iov_base
);
65 v
->iov_base
= __DECONST(char *, "\n");
69 _writev(stderr
->pub
._fileno
, iov
, (v
- iov
) + 1);
70 stderr
->pub
._flags
&= ~__SOFF
;