1 /* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/lib/libc/net/gai_strerror.c,v 1.2 2006/05/21 11:22:31 ume Exp $ 30 */ 31 32 #include <netdb.h> 33 34 /* Entries EAI_ADDRFAMILY (1) and EAI_NODATA (7) are obsoleted, but left */ 35 /* for backward compatibility with userland code prior to 2553bis-02 */ 36 static const char *ai_errlist[] = { 37 "Success", /* 0 */ 38 "Address family for hostname not supported", /* 1 */ 39 "Temporary failure in name resolution", /* EAI_AGAIN */ 40 "Invalid value for ai_flags", /* EAI_BADFLAGS */ 41 "Non-recoverable failure in name resolution", /* EAI_FAIL */ 42 "ai_family not supported", /* EAI_FAMILY */ 43 "Memory allocation failure", /* EAI_MEMORY */ 44 "No address associated with hostname", /* 7 */ 45 "hostname nor servname provided, or not known", /* EAI_NONAME */ 46 "servname not supported for ai_socktype", /* EAI_SERVICE */ 47 "ai_socktype not supported", /* EAI_SOCKTYPE */ 48 "System error returned in errno", /* EAI_SYSTEM */ 49 "Invalid value for hints", /* EAI_BADHINTS */ 50 "Resolved protocol is unknown", /* EAI_PROTOCOL */ 51 "Argument buffer overflow" /* EAI_OVERFLOW */ 52 }; 53 54 const char * 55 gai_strerror(int ecode) 56 { 57 if (ecode >= 0 && ecode < EAI_MAX) 58 return ai_errlist[ecode]; 59 return "Unknown error"; 60 } 61