1 /* $NetBSD: strerror.c,v 1.1.1.3 2015/01/17 16:34:18 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2002-2014 Ion Badulescu 5 * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * 39 * File: am-utils/libamu/strerror.c 40 * 41 */ 42 43 #ifdef HAVE_CONFIG_H 44 # include <config.h> 45 #endif /* HAVE_CONFIG_H */ 46 #include <am_defs.h> 47 #include <amu.h> 48 49 50 /* 51 * Convert errno to a string 52 */ 53 char * 54 strerror(int errnum) 55 { 56 #ifdef HAVE_EXTERN_SYS_ERRLIST 57 if (errnum < 0 || errnum >= (sizeof(sys_errlist) >> 2)) { 58 static char errstr[30]; 59 xsnprintf(errstr, sizeof(errstr), "Unknown error #%d", errnum); 60 return errstr; 61 } 62 return sys_errlist[error]; 63 #else /* not HAVE_EXTERN_SYS_ERRLIST */ 64 return "unknown (strerror not available)"; 65 #endif /* not HAVE_EXTERN_SYS_ERRLIST */ 66 } 67