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 */ 51char * 52strerror(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