support/support_format_herrno.c

   1 /* Convert a h_errno error code to a string.
   2    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <support/format_nss.h>
  20
  21 #include <support/support.h>
  22
  23 char *
  24 support_format_herrno (int code)
  25 {
  26   const char *errstr;
  27   switch (code)
  28     {
  29     case HOST_NOT_FOUND:
  30       errstr = "HOST_NOT_FOUND";
  31       break;
  32     case NO_ADDRESS:
  33       errstr = "NO_ADDRESS";
  34       break;
  35     case NO_RECOVERY:
  36       errstr = "NO_RECOVERY";
  37       break;
  38     case TRY_AGAIN:
  39       errstr = "TRY_AGAIN";
  40       break;
  41     default:
  42       return xasprintf ("<invalid h_errno value %d>\n", code);
  43     }
  44   return xstrdup (errstr);
  45 }