tests/test-getsockopt.c

   1 /* Test getsockopt() function.
   2    Copyright (C) 2011-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <config.h>
  18
  19 #include <sys/socket.h>
  20
  21 #include "signature.h"
  22 SIGNATURE_CHECK (getsockopt, int, (int, int, int, void *, socklen_t *));
  23
  24 #include <errno.h>
  25 #include <unistd.h>
  26
  27 #include "sockets.h"
  28 #include "macros.h"
  29
  30 int
  31 main (void)
  32 {
  33   (void) gl_sockets_startup (SOCKETS_1_1);
  34
  35   /* Test behaviour for invalid file descriptors.  */
  36   {
  37     int value;
  38     socklen_t value_len = sizeof (value);
  39
  40     errno = 0;
  41     ASSERT (getsockopt (-1, SOL_SOCKET, SO_REUSEADDR, &value, &value_len)
  42             == -1);
  43     ASSERT (errno == EBADF);
  44   }
  45   {
  46     int value;
  47     socklen_t value_len = sizeof (value);
  48
  49     close (99);
  50     errno = 0;
  51     ASSERT (getsockopt (99, SOL_SOCKET, SO_REUSEADDR, &value, &value_len)
  52             == -1);
  53     ASSERT (errno == EBADF);
  54   }
  55
  56   return test_exit_status;
  57 }