crypto/external/bsd/heimdal/dist/lib/roken/gai_strerror.c

   1 /*      $NetBSD: gai_strerror.c,v 1.1.1.1 2011/04/13 18:15:41 elric Exp $       */
   2
   3 /*
   4  * Copyright (c) 1999 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <config.h>
  37
  38 #include <krb5/roken.h>
  39
  40 static struct gai_error {
  41     int code;
  42     const char *str;
  43 } errors[] = {
  44 {EAI_NOERROR,           "no error"},
  45 #ifdef EAI_ADDRFAMILY
  46 {EAI_ADDRFAMILY,        "address family for nodename not supported"},
  47 #endif
  48 {EAI_AGAIN,             "temporary failure in name resolution"},
  49 {EAI_BADFLAGS,          "invalid value for ai_flags"},
  50 {EAI_FAIL,              "non-recoverable failure in name resolution"},
  51 {EAI_FAMILY,            "ai_family not supported"},
  52 {EAI_MEMORY,            "memory allocation failure"},
  53 #ifdef EAI_NODATA
  54 {EAI_NODATA,            "no address associated with nodename"},
  55 #endif
  56 {EAI_NONAME,            "nodename nor servname provided, or not known"},
  57 {EAI_SERVICE,           "servname not supported for ai_socktype"},
  58 {EAI_SOCKTYPE,          "ai_socktype not supported"},
  59 {EAI_SYSTEM,            "system error returned in errno"},
  60 {0,                     NULL},
  61 };
  62
  63 /*
  64  *
  65  */
  66
  67 ROKEN_LIB_FUNCTION const char * ROKEN_LIB_CALL
  68 gai_strerror(int ecode)
  69 {
  70     struct gai_error *g;
  71
  72     for (g = errors; g->str != NULL; ++g)
  73         if (g->code == ecode)
  74             return g->str;
  75     return "unknown error code in gai_strerror";
  76 }