1 /*
2  * Copyright (c) 2015 Andreas Schwab <schwab@suse.de>
3  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
4  * Copyright (c) 2015-2017 The strace developers.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #include "tests.h"
31 #include <errno.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <sys/sem.h>
35 
36 #include "xlat.h"
37 #include "xlat/resource_flags.h"
38 
39 union semun {
40 	int		 val;    /* Value for SETVAL */
41 	struct semid_ds	*buf;    /* Buffer for IPC_STAT, IPC_SET */
42 	unsigned short	*array;  /* Array for GETALL, SETALL */
43 	struct seminfo	*__buf;  /* Buffer for IPC_INFO
44 				    (Linux-specific) */
45 };
46 
47 static int id = -1;
48 
49 static void
cleanup(void)50 cleanup(void)
51 {
52 	semctl(id, 0, IPC_RMID, 0);
53 	printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_RMID, \\[?NULL\\]?\\) += 0\n",
54 	       id);
55 	id = -1;
56 }
57 
58 int
main(void)59 main(void)
60 {
61 	static const key_t private_key =
62 		(key_t) (0xffffffff00000000ULL | IPC_PRIVATE);
63 	static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL;
64 	static const int bogus_semid = 0xfdb97531;
65 	static const int bogus_semnum = 0xeca86420;
66 	static const int bogus_size = 0xdec0ded1;
67 	static const int bogus_flags = 0xface1e55;
68 	static const int bogus_cmd = 0xdeadbeef;
69 	static const unsigned long bogus_arg =
70 		(unsigned long) 0xbadc0dedfffffaceULL;
71 
72 	int rc;
73 	union semun un;
74 	struct semid_ds ds;
75 	struct seminfo info;
76 
77 	rc = semget(bogus_key, bogus_size, bogus_flags);
78 	printf("semget\\(%#llx, %d, %s%s%s%#x\\|%#04o\\) += %s\n",
79 	       zero_extend_signed_to_ull(bogus_key), bogus_size,
80 	       IPC_CREAT & bogus_flags ? "IPC_CREAT\\|" : "",
81 	       IPC_EXCL & bogus_flags ? "IPC_EXCL\\|" : "",
82 	       IPC_NOWAIT & bogus_flags ? "IPC_NOWAIT\\|" : "",
83 	       bogus_flags & ~(0777 | IPC_CREAT | IPC_EXCL | IPC_NOWAIT),
84 	       bogus_flags & 0777, sprintrc_grep(rc));
85 
86 	id = semget(private_key, 1, 0600);
87 	if (id < 0)
88 		perror_msg_and_skip("semget");
89 	printf("semget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
90 	atexit(cleanup);
91 
92 	rc = semctl(bogus_semid, bogus_semnum, bogus_cmd, bogus_arg);
93 #define SEMCTL_BOGUS_ARG_FMT "(%#lx|\\[(%#lx|NULL)\\]|NULL)"
94 	printf("semctl\\(%d, %d, (IPC_64\\|)?%#x /\\* SEM_\\?\\?\\? \\*/"
95 	       ", " SEMCTL_BOGUS_ARG_FMT "\\) += %s\n",
96 	       bogus_semid, bogus_semnum, bogus_cmd,
97 	       bogus_arg, bogus_arg, sprintrc_grep(rc));
98 
99 	un.buf = &ds;
100 	if (semctl(id, 0, IPC_STAT, un))
101 		perror_msg_and_skip("semctl IPC_STAT");
102 	printf("semctl\\(%d, 0, (IPC_64\\|)?IPC_STAT, \\[?%p\\]?\\) += 0\n",
103 	       id, &ds);
104 
105 	un.__buf = &info;
106 	rc = semctl(0, 0, SEM_INFO, un);
107 	printf("semctl\\(0, 0, (IPC_64\\|)?SEM_INFO, \\[?%p\\]?\\) += %s\n",
108 	       &info, sprintrc_grep(rc));
109 
110 	un.buf = &ds;
111 	rc = semctl(id, 0, SEM_STAT, un);
112 	printf("semctl\\(%d, 0, (IPC_64\\|)?SEM_STAT, \\[?%p\\]?\\) += %s\n",
113 	       id, &ds, sprintrc_grep(rc));
114 
115 	return 0;
116 }
117