sysdeps/posix/gai_strerror.c

   1 /* Copyright (C) 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <stdio.h>
  21 #include <netdb.h>
  22
  23 static struct
  24   {
  25     int code;
  26     const char *msg;
  27   }
  28 values[] =
  29   {
  30     { EAI_ADDRFAMILY, N_("Address family for hostname not supported") },
  31     { EAI_AGAIN, N_("Temporary failure in name resolution") },
  32     { EAI_BADFLAGS, N_("Bad value for ai_flags") },
  33     { EAI_FAIL, N_("Non-recoverable failure in name resolution") },
  34     { EAI_FAMILY, N_("ai_family not supported") },
  35     { EAI_MEMORY, N_("Memory allocation failure") },
  36     { EAI_NODATA, N_("No address associated with hostname") },
  37     { EAI_NONAME, N_("Name or service not known") },
  38     { EAI_SERVICE, N_("Servname not supported for ai_socktype") },
  39     { EAI_SOCKTYPE, N_("ai_socktype not supported") },
  40     { EAI_SYSTEM, N_("System error") }
  41   };
  42
  43 char *
  44 gai_strerror (int code)
  45 {
  46   size_t i;
  47   for (i = 0; i < sizeof (values) / sizeof (values[0]); ++i)
  48     if (values[i].code == code)
  49       return (char *) values[i].msg;
  50
  51   return (char *) _("Unknown error");
  52 }