tests/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_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
   7
   8 T_DECL(socket_poll_close_25786011, "Tests an invalid poll call to a socket and then calling close.", T_META_LTEPHASE(LTE_POSTINIT))
   9 {
  10         int my_socket, ret;
  11
  12         my_socket = socket(PF_LOCAL, SOCK_STREAM, 0);
  13         T_WITH_ERRNO; T_ASSERT_TRUE(my_socket > 0, "create socket");
  14
  15         /*
  16          * Setup a pollfd that we know will return an error when we try
  17          * to create a knote for it. We specify a BSD vnode specific event
  18          * for a socket.
  19          */
  20         struct pollfd my_pollfd = {
  21                 .fd = my_socket,
  22                 .events = POLLEXTEND
  23         };
  24
  25         /*
  26          * Previously the call to kevent_register() in the kernel from this call
  27          * would leak an iocount reference on the fileproc, which would cause any
  28          * subsequent calls to close() on the associated fd to block indefinitely.
  29          */
  30         ret = poll(&my_pollfd, 1, 0);
  31         T_WITH_ERRNO; T_ASSERT_TRUE(ret == 1, "poll returned %d", ret);
  32
  33         ret = close(my_socket);
  34         T_ASSERT_POSIX_ZERO(ret, "close on socket with fd %d\n", my_socket);
  35
  36         T_PASS("socket_poll_close_25786011 PASSED");
  37 }