1 /*
2 * Copyright (c) Ulrich Drepper <drepper@redhat.com>
3 * Copyright (c) International Business Machines Corp., 2009
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program 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
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program;
17 *
18 * Test: epoll_create1_01.c
19 *
20 * Description: This Program tests the new system call introduced in 2.6.27.
21 * Ulrich´s comment as in:
22 * http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a0998b50c3f0b8fdd265c63e0032f86ebe377dbf
23 *
24 * This patch adds the new epoll_create1 syscall. It extends the old
25 * epoll_create syscall by one parameter which is meant to hold a flag value.
26 * In this patch the only flag support is EPOLL_CLOEXEC which causes the
27 * close-on-exec flag for the returned file descriptor to be set. A new name
28 * EPOLL_CLOEXEC is introduced which in this implementation must have the same
29 * value as O_CLOEXEC.
30 */
31 #include <errno.h>
32 #include <sys/epoll.h>
33 #include "tst_test.h"
34 #include "lapi/epoll.h"
35 #include "linux_syscall_numbers.h"
36
verify_epoll_create1(void)37 static void verify_epoll_create1(void)
38 {
39 int fd, coe;
40
41 fd = tst_syscall(__NR_epoll_create1, 0);
42 if (fd == -1)
43 tst_brk(TFAIL | TERRNO, "epoll_create1(0) failed");
44
45 coe = SAFE_FCNTL(fd, F_GETFD);
46 if (coe & FD_CLOEXEC)
47 tst_brk(TFAIL, "flags=0 set close-on-exec flag");
48
49 SAFE_CLOSE(fd);
50
51 fd = tst_syscall(__NR_epoll_create1, EPOLL_CLOEXEC);
52 if (fd == -1)
53 tst_brk(TFAIL | TERRNO, "epoll_create1(EPOLL_CLOEXEC) failed");
54
55 coe = SAFE_FCNTL(fd, F_GETFD);
56 if ((coe & FD_CLOEXEC) == 0)
57 tst_brk(TFAIL, "flags=EPOLL_CLOEXEC didn't set close-on-exec");
58
59 SAFE_CLOSE(fd);
60
61 tst_res(TPASS, "epoll_create1(EPOLL_CLOEXEC) PASSED");
62 }
63
64 static struct tst_test test = {
65 .tid = "epoll_create1_01",
66 .min_kver = "2.6.27",
67 .test_all = verify_epoll_create1,
68 };
69