lib/gai_strerror.c

   1 /* Copyright (C) 1997, 2001-2002, 2004-2006, 2008-2012 Free Software
   2    Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU Lesser General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 #ifndef _LIBC
  21 # include <config.h>
  22 #endif
  23
  24 #include <stdio.h>
  25 #include <netdb.h>
  26
  27 #ifdef _LIBC
  28 # include <libintl.h>
  29 #else
  30 # include "gettext.h"
  31 # define _(String) gettext (String)
  32 # define N_(String) String
  33 #endif
  34
  35 #if HAVE_DECL_GAI_STRERROR
  36
  37 # include <sys/socket.h>
  38 # undef gai_strerror
  39 # if HAVE_DECL_GAI_STRERRORA
  40 #  define gai_strerror gai_strerrorA
  41 # endif
  42
  43 const char *
  44 rpl_gai_strerror (int code)
  45 {
  46   return gai_strerror (code);
  47 }
  48
  49 #else /* !HAVE_DECL_GAI_STRERROR */
  50
  51 static struct
  52   {
  53     int code;
  54     const char *msg;
  55   }
  56 values[] =
  57   {
  58     { EAI_ADDRFAMILY, N_("Address family for hostname not supported") },
  59     { EAI_AGAIN, N_("Temporary failure in name resolution") },
  60     { EAI_BADFLAGS, N_("Bad value for ai_flags") },
  61     { EAI_FAIL, N_("Non-recoverable failure in name resolution") },
  62     { EAI_FAMILY, N_("ai_family not supported") },
  63     { EAI_MEMORY, N_("Memory allocation failure") },
  64     { EAI_NODATA, N_("No address associated with hostname") },
  65     { EAI_NONAME, N_("Name or service not known") },
  66     { EAI_SERVICE, N_("Servname not supported for ai_socktype") },
  67     { EAI_SOCKTYPE, N_("ai_socktype not supported") },
  68     { EAI_SYSTEM, N_("System error") },
  69     { EAI_OVERFLOW, N_("Argument buffer too small") },
  70 #ifdef EAI_INPROGRESS
  71     { EAI_INPROGRESS, N_("Processing request in progress") },
  72     { EAI_CANCELED, N_("Request canceled") },
  73     { EAI_NOTCANCELED, N_("Request not canceled") },
  74     { EAI_ALLDONE, N_("All requests done") },
  75     { EAI_INTR, N_("Interrupted by a signal") },
  76     { EAI_IDN_ENCODE, N_("Parameter string not correctly encoded") }
  77 #endif
  78   };
  79
  80 const char *
  81 gai_strerror (int code)
  82 {
  83   size_t i;
  84   for (i = 0; i < sizeof (values) / sizeof (values[0]); ++i)
  85     if (values[i].code == code)
  86       return _(values[i].msg);
  87
  88   return _("Unknown error");
  89 }
  90 # ifdef _LIBC
  91 libc_hidden_def (gai_strerror)
  92 # endif
  93 #endif /* !HAVE_DECL_GAI_STRERROR */