1 /* $NetBSD: strerror.c,v 1.1.1.2 2009/03/20 20:26:56 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2002-2009 Ion Badulescu 5 * Copyright (c) 1997-2009 Erez Zadok 6 * Copyright (c) 1990 Jan-Simon Pendry 7 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 8 * Copyright (c) 1990 The Regents of the University of California. 9 * All rights reserved. 10 * 11 * This code is derived from software contributed to Berkeley by 12 * Jan-Simon Pendry at Imperial College, London. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgment: 24 * This product includes software developed by the University of 25 * California, Berkeley and its contributors. 26 * 4. Neither the name of the University nor the names of its contributors 27 * may be used to endorse or promote products derived from this software 28 * without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 * 43 * File: am-utils/libamu/strerror.c 44 * 45 */ 46 47 #ifdef HAVE_CONFIG_H 48 # include <config.h> 49 #endif /* HAVE_CONFIG_H */ 50 #include <am_defs.h> 51 #include <amu.h> 52 53 54 /* 55 * Convert errno to a string 56 */ 57 char * 58 strerror(int errnum) 59 { 60 #ifdef HAVE_EXTERN_SYS_ERRLIST 61 if (errnum < 0 || errnum >= (sizeof(sys_errlist) >> 2)) { 62 static char errstr[30]; 63 xsnprintf(errstr, sizeof(errstr), "Unknown error #%d", errnum); 64 return errstr; 65 } 66 return sys_errlist[error]; 67 #else /* not HAVE_EXTERN_SYS_ERRLIST */ 68 return "unknown (strerror not available)"; 69 #endif /* not HAVE_EXTERN_SYS_ERRLIST */ 70 } 71