00001 /*- 00002 * See the file LICENSE for redistribution information. 00003 * 00004 * Copyright (c) 1997, 1998, 1999 00005 * Sleepycat Software. All rights reserved. 00006 */ 00007 /* 00008 * Copyright (c) 1988, 1993 00009 * The Regents of the University of California. All rights reserved. 00010 * 00011 * Redistribution and use in source and binary forms, with or without 00012 * modification, are permitted provided that the following conditions 00013 * are met: 00014 * 1. Redistributions of source code must retain the above copyright 00015 * notice, this list of conditions and the following disclaimer. 00016 * 2. Redistributions in binary form must reproduce the above copyright 00017 * notice, this list of conditions and the following disclaimer in the 00018 * documentation and/or other materials provided with the distribution. 00019 * 3. Neither the name of the University nor the names of its contributors 00020 * may be used to endorse or promote products derived from this software 00021 * without specific prior written permission. 00022 * 00023 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00024 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00025 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00026 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00027 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00028 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00029 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00030 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00031 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00032 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00033 * SUCH DAMAGE. 00034 */ 00035 00036 #ifdef HAVE_CONFIG_H 00037 #include "config.h" 00038 #endif /* HAVE_CONFIG_H */ 00039 00040 #ifndef HAVE_STRERROR 00041 00042 /* 00043 * strerror -- 00044 * Return the string associated with an errno. 00045 * 00046 * PUBLIC: #ifndef HAVE_STRERROR 00047 * PUBLIC: char *strerror __P((int)); 00048 * PUBLIC: #endif 00049 */ 00050 char * 00051 strerror(num) 00052 int num; 00053 { 00054 extern int sys_nerr; 00055 extern char *sys_errlist[]; 00056 #undef UPREFIX 00057 #define UPREFIX "Unknown error: " 00058 static char ebuf[40] = UPREFIX; /* 64-bit number + slop */ 00059 int errnum; 00060 char *p, *t, tmp[40]; 00061 00062 errnum = num; /* convert to unsigned */ 00063 if (errnum < sys_nerr) 00064 return(sys_errlist[errnum]); 00065 00066 /* Do this by hand, so we don't include stdio(3). */ 00067 t = tmp; 00068 do { 00069 *t++ = "0123456789"[errnum % 10]; 00070 } while (errnum /= 10); 00071 for (p = ebuf + sizeof(UPREFIX) - 1;;) { 00072 *p++ = *--t; 00073 if (t <= tmp) 00074 break; 00075 } 00076 return(ebuf); 00077 } 00078 00079 #endif /* HAVE_STRERROR */