tools/tests/darwintests/socket_poll_close_25786011.c

   1 #include <darwintest.h>
   2 #include <poll.h>
   3 #include <sys/socket.h>
   4 #include <unistd.h>
   5
   6 T_DECL(socket_poll_close_25786011, "Tests an invalid poll call to a socket and then calling close.", T_META_LTEPHASE(LTE_POSTINIT))
   7 {
   8         int my_socket, ret;
   9
  10         my_socket = socket(PF_LOCAL, SOCK_STREAM, 0);
  11         T_WITH_ERRNO; T_ASSERT_TRUE(my_socket > 0, "create socket");
  12
  13         /*
  14          * Setup a pollfd that we know will return an error when we try
  15          * to create a knote for it. We specify a BSD vnode specific event
  16          * for a socket.
  17          */
  18         struct pollfd my_pollfd = {
  19                 .fd = my_socket,
  20                 .events = POLLEXTEND
  21         };
  22
  23         /*
  24          * Previously the call to kevent_register() in the kernel from this call
  25          * would leak an iocount reference on the fileproc, which would cause any
  26          * subsequent calls to close() on the associated fd to block indefinitely.
  27          */
  28         ret = poll(&my_pollfd, 1, 0);
  29         T_WITH_ERRNO; T_ASSERT_TRUE(ret == 1, "poll returned %d", ret);
  30
  31         ret = close(my_socket);
  32         T_ASSERT_POSIX_ZERO(ret, "close on socket with fd %d\n", my_socket);
  33
  34         T_PASS("socket_poll_close_25786011 PASSED");
  35 }