lib/gai_strerror.c

   1 /* Copyright (C) 1997, 2001-2002, 2004-2006, 2008-2024 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 file is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU Lesser General Public License as
   8    published by the Free Software Foundation; either version 2.1 of the
   9    License, or (at your option) any later version.
  10
  11    This file 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, see <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LIBC
  20 # include <config.h>
  21 #endif
  22
  23 #include <stdio.h>
  24 #include <netdb.h>
  25
  26 #ifdef _LIBC
  27 # include <libintl.h>
  28 #else
  29 # include "gettext.h"
  30 # define _(String) gettext (String)
  31 # define N_(String) String
  32 #endif
  33
  34 #if HAVE_DECL_GAI_STRERROR
  35
  36 # include <sys/socket.h>
  37 # undef gai_strerror
  38 # if HAVE_DECL_GAI_STRERRORA
  39 #  define gai_strerror gai_strerrorA
  40 # endif
  41
  42 const char *
  43 rpl_gai_strerror (int code)
  44 {
  45   return gai_strerror (code);
  46 }
  47
  48 #else /* !HAVE_DECL_GAI_STRERROR */
  49
  50 static struct
  51   {
  52     int code;
  53     const char *msg;
  54   }
  55 values[] =
  56   {
  57     { EAI_ADDRFAMILY, N_("Address family for hostname not supported") },
  58     { EAI_AGAIN, N_("Temporary failure in name resolution") },
  59     { EAI_BADFLAGS, N_("Bad value for ai_flags") },
  60     { EAI_FAIL, N_("Non-recoverable failure in name resolution") },
  61     { EAI_FAMILY, N_("ai_family not supported") },
  62     { EAI_MEMORY, N_("Memory allocation failure") },
  63     { EAI_NODATA, N_("No address associated with hostname") },
  64     { EAI_NONAME, N_("Name or service not known") },
  65     { EAI_SERVICE, N_("Servname not supported for ai_socktype") },
  66     { EAI_SOCKTYPE, N_("ai_socktype not supported") },
  67     { EAI_SYSTEM, N_("System error") },
  68     { EAI_OVERFLOW, N_("Argument buffer too small") },
  69 #ifdef EAI_INPROGRESS
  70     { EAI_INPROGRESS, N_("Processing request in progress") },
  71     { EAI_CANCELED, N_("Request canceled") },
  72     { EAI_NOTCANCELED, N_("Request not canceled") },
  73     { EAI_ALLDONE, N_("All requests done") },
  74     { EAI_INTR, N_("Interrupted by a signal") },
  75     { EAI_IDN_ENCODE, N_("Parameter string not correctly encoded") }
  76 #endif
  77   };
  78
  79 const char *
  80 gai_strerror (int code)
  81 {
  82   size_t i;
  83   for (i = 0; i < sizeof (values) / sizeof (values[0]); ++i)
  84     if (values[i].code == code)
  85       return _(values[i].msg);
  86
  87   return _("Unknown error");
  88 }
  89 # ifdef _LIBC
  90 libc_hidden_def (gai_strerror)
  91 # endif
  92 #endif /* !HAVE_DECL_GAI_STRERROR */