1 /* 2 * Copyright (c) 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: gai_strerror.c 15837 2005-08-05 09:31:35Z lha $"); 37 #endif 38 39 #include "roken.h" 40 41 static struct gai_error { 42 int code; 43 const char *str; 44 } errors[] = { 45 {EAI_NOERROR, "no error"}, 46 #ifdef EAI_ADDRFAMILY 47 {EAI_ADDRFAMILY, "address family for nodename not supported"}, 48 #endif 49 {EAI_AGAIN, "temporary failure in name resolution"}, 50 {EAI_BADFLAGS, "invalid value for ai_flags"}, 51 {EAI_FAIL, "non-recoverable failure in name resolution"}, 52 {EAI_FAMILY, "ai_family not supported"}, 53 {EAI_MEMORY, "memory allocation failure"}, 54 #ifdef EAI_NODATA 55 {EAI_NODATA, "no address associated with nodename"}, 56 #endif 57 {EAI_NONAME, "nodename nor servname provided, or not known"}, 58 {EAI_SERVICE, "servname not supported for ai_socktype"}, 59 {EAI_SOCKTYPE, "ai_socktype not supported"}, 60 {EAI_SYSTEM, "system error returned in errno"}, 61 {0, NULL}, 62 }; 63 64 /* 65 * 66 */ 67 68 const char * ROKEN_LIB_FUNCTION 69 gai_strerror(int ecode) 70 { 71 struct gai_error *g; 72 73 for (g = errors; g->str != NULL; ++g) 74 if (g->code == ecode) 75 return g->str; 76 return "unknown error code in gai_strerror"; 77 } 78