1 /*
2 * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #ifdef HAVE_CONFIG_H
29 # include "config.h"
30 #endif
31
32 #include <poll.h>
33 #include <signal.h>
34 #include <unistd.h>
35
36 static int
test1(void)37 test1(void)
38 {
39 sigset_t mask;
40 const struct timespec timeout = { .tv_sec = 42, .tv_nsec = 999999999 };
41 struct pollfd fds[] = {
42 { .fd = 0, .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
43 { .fd = 1, .events = POLLOUT | POLLWRNORM | POLLWRBAND },
44 { .fd = 3, .events = POLLIN | POLLPRI },
45 { .fd = 4, .events = POLLOUT }
46 };
47
48 sigemptyset(&mask);
49 sigaddset(&mask, SIGUSR2);
50 sigaddset(&mask, SIGCHLD);
51
52 return ppoll(fds, sizeof(fds) / sizeof(*fds), &timeout, &mask) == 2 ? 0 : 77;
53 }
54
55 static int
test2(void)56 test2(void)
57 {
58 sigset_t mask;
59 const struct timespec timeout = { .tv_sec = 0, .tv_nsec = 999 };
60 struct pollfd fds[] = {
61 { .fd = 1, .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
62 { .fd = 0, .events = POLLOUT | POLLWRNORM | POLLWRBAND }
63 };
64
65 sigfillset(&mask);
66 sigdelset(&mask, SIGHUP);
67 sigdelset(&mask, SIGKILL);
68 sigdelset(&mask, SIGSTOP);
69
70 return ppoll(fds, sizeof(fds) / sizeof(*fds), &timeout, &mask) == 0 ? 0 : 77;
71 }
72
73 int
main(void)74 main(void)
75 {
76 int rc;
77 int fds[2];
78
79 (void) close(0);
80 (void) close(1);
81 (void) close(3);
82 (void) close(4);
83 if (pipe(fds) || pipe(fds))
84 return 77;
85
86
87 if ((rc = test1()))
88 return rc;
89
90 if ((rc = test2()))
91 return rc;
92
93 return ppoll(NULL, 42, NULL, NULL) < 0 ? 0 : 77;
94 }
95