1 /*
2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 #include "It_container_test.h"
31 #include "sys/utsname.h"
32
ChildFunc(void * arg)33 static int ChildFunc(void *arg)
34 {
35 (void)arg;
36 int ret;
37
38 ret = unshare(CLONE_NEWUTS);
39 if (ret != 0) {
40 return EXIT_CODE_ERRNO_1;
41 }
42
43 struct utsname newName;
44 ret = uname(&newName);
45 if (ret != 0) {
46 return EXIT_CODE_ERRNO_2;
47 }
48
49 const char *name = "TestHostName";
50 ret = sethostname(name, strlen(name));
51 if (ret != 0) {
52 return EXIT_CODE_ERRNO_3;
53 }
54
55 struct utsname newName1;
56 ret = uname(&newName1);
57 if (ret != 0) {
58 return EXIT_CODE_ERRNO_4;
59 }
60
61 ret = strcmp(newName.nodename, newName1.nodename);
62 if (ret == 0) {
63 return EXIT_CODE_ERRNO_5;
64 }
65
66 return 0;
67 }
68
ItUtsContainer004(void)69 void ItUtsContainer004(void)
70 {
71 int ret;
72 char *stack = (char *)mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, CLONE_STACK_MMAP_FLAG, -1, 0);
73 ASSERT_TRUE(stack != NULL);
74 char *stackTop = stack + STACK_SIZE;
75 struct utsname oldName;
76
77 ret = uname(&oldName);
78 ASSERT_EQ(ret, 0);
79
80 auto pid = clone(ChildFunc, stackTop, SIGCHLD, NULL);
81 (void)munmap(stack, STACK_SIZE);
82 ASSERT_NE(pid, -1);
83
84 int status;
85 ret = waitpid(pid, &status, 0);
86 ASSERT_EQ(ret, pid);
87
88 int exitCode = WEXITSTATUS(status);
89 ASSERT_EQ(exitCode, 0);
90
91 struct utsname oldName1;
92 ret = uname(&oldName1);
93 ASSERT_EQ(ret, 0);
94
95 ret = strcmp(oldName.nodename, oldName1.nodename);
96 ASSERT_EQ(ret, 0);
97 }
98