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> 36 RCSID("$Id: hstrerror.c,v 1.23 1999/12/05 13:18:55 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 #ifndef HAVE_H_ERRNO 50 int h_errno = -17; /* Some magic number */ 51 #endif 52 53 #if !(defined(HAVE_H_ERRLIST) && defined(HAVE_H_NERR)) 54 static const char *const h_errlist[] = { 55 "Resolver Error 0 (no error)", 56 "Unknown host", /* 1 HOST_NOT_FOUND */ 57 "Host name lookup failure", /* 2 TRY_AGAIN */ 58 "Unknown server error", /* 3 NO_RECOVERY */ 59 "No address associated with name", /* 4 NO_ADDRESS */ 60 }; 61 62 static 63 const 64 int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] }; 65 #else 66 67 #ifndef HAVE_H_ERRLIST_DECLARATION 68 extern const char *h_errlist[]; 69 extern int h_nerr; 70 #endif 71 72 #endif 73 74 const char * 75 hstrerror(int herr) 76 { 77 if (0 <= herr && herr < h_nerr) 78 return h_errlist[herr]; 79 else if(herr == -17) 80 return "unknown error"; 81 else 82 return "Error number out of range (hstrerror)"; 83 } 84 85 #endif 86