1 /*
2 * Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com>
3 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "tests.h"
30 #include <errno.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <sys/shm.h>
34
35 #include "xlat.h"
36 #include "xlat/shm_resource_flags.h"
37
38 static int id = -1;
39
40 static void
cleanup(void)41 cleanup(void)
42 {
43 shmctl(id, IPC_RMID, NULL);
44 printf("shmctl\\(%d, (IPC_64\\|)?IPC_RMID, NULL\\) += 0\n", id);
45 id = -1;
46 }
47
48 int
main(void)49 main(void)
50 {
51 static const key_t private_key =
52 (key_t) (0xffffffff00000000ULL | IPC_PRIVATE);
53 static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL;
54 static const int bogus_id = 0xdefaced1;
55 static const int bogus_cmd = 0xdefaced2;
56 static void * const bogus_addr = (void *) -1L;
57 static const size_t bogus_size =
58 /*
59 * musl sets size to SIZE_MAX if size argument is greater than
60 * PTRDIFF_MAX - musl/src/ipc/shmget.c
61 */
62 #ifdef __GLIBC__
63 (size_t) 0xdec0ded1dec0ded2ULL;
64 #else
65 (size_t) 0x1e55c0de5dec0dedULL;
66 #endif
67 static const int bogus_flags = 0xface1e55;
68
69 int rc;
70 struct shmid_ds ds;
71
72 rc = shmget(bogus_key, bogus_size, bogus_flags);
73 printf("shmget\\(%#llx, %zu, %s%s%s%#x\\|%#04o\\) += %s\n",
74 zero_extend_signed_to_ull(bogus_key), bogus_size,
75 IPC_CREAT & bogus_flags ? "IPC_CREAT\\|" : "",
76 IPC_EXCL & bogus_flags ? "IPC_EXCL\\|" : "",
77 SHM_HUGETLB & bogus_flags ? "SHM_HUGETLB\\|" : "",
78 bogus_flags & ~(0777 | IPC_CREAT | IPC_EXCL | SHM_HUGETLB),
79 bogus_flags & 0777, sprintrc_grep(rc));
80
81 id = shmget(private_key, 1, 0600);
82 if (id < 0)
83 perror_msg_and_skip("shmget");
84 printf("shmget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
85 atexit(cleanup);
86
87 rc = shmctl(bogus_id, bogus_cmd, NULL);
88 printf("shmctl\\(%d, (IPC_64\\|)?%#x /\\* SHM_\\?\\?\\? \\*/, NULL\\)"
89 " += %s\n", bogus_id, bogus_cmd, sprintrc_grep(rc));
90
91 rc = shmctl(bogus_id, IPC_STAT, bogus_addr);
92 printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, %p\\) += %s\n",
93 bogus_id, bogus_addr, sprintrc_grep(rc));
94
95 if (shmctl(id, IPC_STAT, &ds))
96 perror_msg_and_skip("shmctl IPC_STAT");
97 printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, \\{shm_perm=\\{uid=%u, gid=%u, "
98 "mode=%#o, key=%u, cuid=%u, cgid=%u\\}, shm_segsz=%u, shm_cpid=%u, "
99 "shm_lpid=%u, shm_nattch=%u, shm_atime=%u, shm_dtime=%u, "
100 "shm_ctime=%u\\}\\) += 0\n",
101 id, (unsigned) ds.shm_perm.uid, (unsigned) ds.shm_perm.gid,
102 (unsigned) ds.shm_perm.mode, (unsigned) ds.shm_perm.__key,
103 (unsigned) ds.shm_perm.cuid, (unsigned) ds.shm_perm.cgid,
104 (unsigned) ds.shm_segsz, (unsigned) ds.shm_cpid,
105 (unsigned) ds.shm_lpid, (unsigned) ds.shm_nattch,
106 (unsigned) ds.shm_atime, (unsigned) ds.shm_dtime,
107 (unsigned) ds. shm_ctime);
108
109 if (shmctl(id, IPC_SET, &ds))
110 perror_msg_and_skip("shmctl IPC_SET");
111 printf("shmctl\\(%d, (IPC_64\\|)?IPC_SET, \\{shm_perm=\\{uid=%u, gid=%u"
112 ", mode=%#o\\}, ...\\}\\) += 0\n",
113 id, (unsigned) ds.shm_perm.uid, (unsigned) ds.shm_perm.gid,
114 (unsigned) ds.shm_perm.mode);
115
116 rc = shmctl(0, SHM_INFO, &ds);
117 printf("shmctl\\(0, (IPC_64\\|)?SHM_INFO, %p\\) += %s\n",
118 &ds, sprintrc_grep(rc));
119
120 rc = shmctl(id, SHM_STAT, &ds);
121 printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += %s\n",
122 id, &ds, sprintrc_grep(rc));
123
124 return 0;
125 }
126