support/resolv_response_context_duplicate.c

   1 /* Duplicate a response context used in DNS resolver tests.
   2    Copyright (C) 2020-2023 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <string.h>
  20 #include <support/resolv_test.h>
  21 #include <support/support.h>
  22
  23 struct resolv_response_context *
  24 resolv_response_context_duplicate (const struct resolv_response_context *ctx)
  25 {
  26   struct resolv_response_context *result = xmalloc (sizeof (*result));
  27   memcpy (result, ctx, sizeof (*result));
  28   if (result->client_address != NULL)
  29     {
  30       result->client_address = xmalloc (result->client_address_length);
  31       memcpy (result->client_address, ctx->client_address,
  32               result->client_address_length);
  33     }
  34   result->query_buffer = xmalloc (result->query_length);
  35   memcpy (result->query_buffer, ctx->query_buffer, result->query_length);
  36   return result;
  37 }