hstrerror.c revision 90926
1/* 2 * Copyright (c) 1995 - 1999 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifdef HAVE_CONFIG_H 35#include <config.h> 36RCSID("$Id: hstrerror.c,v 1.24 2001/08/08 03:47:23 assar Exp $"); 37#endif 38 39#ifndef HAVE_HSTRERROR 40 41#if (defined(SunOS) && (SunOS >= 50)) 42#define hstrerror broken_proto 43#endif 44#include "roken.h" 45#if (defined(SunOS) && (SunOS >= 50)) 46#undef hstrerror 47#endif 48 49#if !(defined(HAVE_H_ERRLIST) && defined(HAVE_H_NERR)) 50static const char *const h_errlist[] = { 51 "Resolver Error 0 (no error)", 52 "Unknown host", /* 1 HOST_NOT_FOUND */ 53 "Host name lookup failure", /* 2 TRY_AGAIN */ 54 "Unknown server error", /* 3 NO_RECOVERY */ 55 "No address associated with name", /* 4 NO_ADDRESS */ 56}; 57 58static 59const 60int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] }; 61#else 62 63#ifndef HAVE_H_ERRLIST_DECLARATION 64extern const char *h_errlist[]; 65extern int h_nerr; 66#endif 67 68#endif 69 70const char * 71hstrerror(int herr) 72{ 73 if (0 <= herr && herr < h_nerr) 74 return h_errlist[herr]; 75 else if(herr == -17) 76 return "unknown error"; 77 else 78 return "Error number out of range (hstrerror)"; 79} 80 81#endif 82