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 } 38