1 /*
2 * Copyright (c) 2002-2014 Ion Badulescu
3 * Copyright (c) 1997-2014 Erez Zadok
4 * Copyright (c) 1990 Jan-Simon Pendry
5 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
6 * Copyright (c) 1990 The Regents of the University of California.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Jan-Simon Pendry at Imperial College, London.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. 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 * File: am-utils/libamu/strerror.c
38 *
39 */
40
41 #ifdef HAVE_CONFIG_H
42 # include <config.h>
43 #endif /* HAVE_CONFIG_H */
44 #include <am_defs.h>
45 #include <amu.h>
46
47
48 /*
49 * Convert errno to a string
50 */
51 char *
strerror(int errnum)52 strerror(int errnum)
53 {
54 #ifdef HAVE_EXTERN_SYS_ERRLIST
55 if (errnum < 0 || errnum >= (sizeof(sys_errlist) >> 2)) {
56 static char errstr[30];
57 xsnprintf(errstr, sizeof(errstr), "Unknown error #%d", errnum);
58 return errstr;
59 }
60 return sys_errlist[error];
61 #else /* not HAVE_EXTERN_SYS_ERRLIST */
62 return "unknown (strerror not available)";
63 #endif /* not HAVE_EXTERN_SYS_ERRLIST */
64 }
65