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1 /*
2  * Check decoding of nanosleep syscall.
3  *
4  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5  * Copyright (c) 2015-2017 The strace developers.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. The name of the author may not be used to endorse or promote products
17  *    derived from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include "tests.h"
32 #include <assert.h>
33 #include <stdio.h>
34 #include <stdint.h>
35 #include <signal.h>
36 #include <time.h>
37 #include <sys/time.h>
38 
39 static void
handler(int signo)40 handler(int signo)
41 {
42 }
43 
44 int
main(void)45 main(void)
46 {
47 	struct {
48 		struct timespec ts;
49 		uint32_t pad[2];
50 	} req = {
51 		.ts.tv_nsec = 0xc0de1,
52 		.pad = { 0xdeadbeef, 0xbadc0ded }
53 	}, rem = {
54 		.ts = { .tv_sec = 0xc0de2, .tv_nsec = 0xc0de3 },
55 		.pad = { 0xdeadbeef, 0xbadc0ded }
56 	};
57 	const sigset_t set = {};
58 	const struct sigaction act = { .sa_handler = handler };
59 	const struct itimerval itv = { .it_value.tv_usec = 111111 };
60 
61 	if (nanosleep(&req.ts, NULL))
62 		perror_msg_and_fail("nanosleep");
63 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, NULL) = 0\n",
64 	       (long long) req.ts.tv_sec,
65 	       zero_extend_signed_to_ull(req.ts.tv_nsec));
66 
67 	assert(nanosleep(NULL, &rem.ts) == -1);
68 	printf("nanosleep(NULL, %p) = -1 EFAULT (%m)\n", &rem.ts);
69 
70 	if (nanosleep(&req.ts, &rem.ts))
71 		perror_msg_and_fail("nanosleep");
72 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, %p) = 0\n",
73 	       (long long) req.ts.tv_sec,
74 	       zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
75 
76 	req.ts.tv_nsec = 1000000000;
77 	assert(nanosleep(&req.ts, &rem.ts) == -1);
78 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
79 	       (long long) req.ts.tv_sec,
80 	       zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
81 
82 	req.ts.tv_sec = 0xdeadbeefU;
83 	req.ts.tv_nsec = 0xfacefeedU;
84 	assert(nanosleep(&req.ts, &rem.ts) == -1);
85 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
86 	       (long long) req.ts.tv_sec,
87 	       zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
88 
89 	req.ts.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
90 	req.ts.tv_nsec = (long) 0xbadc0dedfacefeedLL;
91 	assert(nanosleep(&req.ts, &rem.ts) == -1);
92 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
93 	       (long long) req.ts.tv_sec,
94 	       zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
95 
96 	req.ts.tv_sec = -1;
97 	req.ts.tv_nsec = -1;
98 	assert(nanosleep(&req.ts, &rem.ts) == -1);
99 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}, %p) = -1 EINVAL (%m)\n",
100 	       (long long) req.ts.tv_sec,
101 	       zero_extend_signed_to_ull(req.ts.tv_nsec), &rem.ts);
102 
103 	assert(sigaction(SIGALRM, &act, NULL) == 0);
104 	assert(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
105 
106 	if (setitimer(ITIMER_REAL, &itv, NULL))
107 		perror_msg_and_skip("setitimer");
108 
109 	req.ts.tv_sec = 0;
110 	req.ts.tv_nsec = 999999999;
111 	assert(nanosleep(&req.ts, &rem.ts) == -1);
112 	printf("nanosleep({tv_sec=%lld, tv_nsec=%llu}"
113 	       ", {tv_sec=%lld, tv_nsec=%llu})"
114 	       " = ? ERESTART_RESTARTBLOCK (Interrupted by signal)\n",
115 	       (long long) req.ts.tv_sec,
116 	       zero_extend_signed_to_ull(req.ts.tv_nsec),
117 	       (long long) rem.ts.tv_sec,
118 	       zero_extend_signed_to_ull(rem.ts.tv_nsec));
119 	puts("--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---");
120 
121 	puts("+++ exited with 0 +++");
122 	return 0;
123 }
124