1 /*
2 * Copyright (C) 2016 The Android Open Source Project
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 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <errno.h>
30 #include <sys/shm.h>
31
32 #include <android-base/file.h>
33 #include <gtest/gtest.h>
34
TEST(sys_shm,smoke)35 TEST(sys_shm, smoke) {
36 if (shmctl(-1, IPC_STAT, nullptr) == -1 && errno == ENOSYS) {
37 GTEST_SKIP() << "no <sys/shm.h> support in this kernel";
38 }
39
40 // Create a segment.
41 TemporaryDir dir;
42 key_t key = ftok(dir.path, 1);
43 int id = shmget(key, 1234, IPC_CREAT|0666);
44 ASSERT_NE(id, -1);
45
46 // Check segment info.
47 shmid_ds ds = {};
48 ASSERT_EQ(0, shmctl(id, IPC_STAT, &ds));
49 ASSERT_EQ(1234U, ds.shm_segsz);
50
51 // Attach.
52 void* p = shmat(id, nullptr, SHM_RDONLY);
53 ASSERT_NE(p, nullptr);
54
55 // Detach.
56 ASSERT_EQ(0, shmdt(p));
57
58 // Destroy the segment.
59 ASSERT_EQ(0, shmctl(id, IPC_RMID, nullptr));
60 }
61
TEST(sys_shm,shmat_failure)62 TEST(sys_shm, shmat_failure) {
63 errno = 0;
64 ASSERT_EQ(reinterpret_cast<void*>(-1), shmat(-1, nullptr, SHM_RDONLY));
65 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
66 }
67
TEST(sys_shm,shmctl_failure)68 TEST(sys_shm, shmctl_failure) {
69 errno = 0;
70 ASSERT_EQ(-1, shmctl(-1, IPC_STAT, nullptr));
71 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
72 }
73
TEST(sys_shm,shmdt_failure)74 TEST(sys_shm, shmdt_failure) {
75 #pragma clang diagnostic push
76 #pragma clang diagnostic ignored "-Wnonnull"
77 errno = 0;
78 ASSERT_EQ(-1, shmdt(nullptr));
79 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
80 #pragma clang diagnostic pop
81 }
82
TEST(sys_shm,shmget_failure)83 TEST(sys_shm, shmget_failure) {
84 errno = 0;
85 ASSERT_EQ(-1, shmget(-1, 1234, 0));
86 ASSERT_TRUE(errno == ENOENT || errno == ENOSYS);
87 }
88