xref: /xnu-8792.41.9/tests/utimensat.c (revision 5c2921b07a2480ab43ec66f5b9e41cb872bc554f)
1 #include <sys/cdefs.h>
2 #include <sys/param.h>
3 #include <sys/stat.h>
4 #include <sys/time.h>
5 #include <errno.h>
6 #include <fcntl.h>
7 #include <limits.h>
8 #include <paths.h>
9 #include <stdio.h>
10 #include <string.h>
11 #include <unistd.h>
12 
13 #include <darwintest.h>
14 #include <darwintest_utils.h>
15 
16 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
17 
18 #define FILENAME "utimensat"
19 
20 static const struct timespec tptr[][2] = {
21 	{ { 0x12345678, 987654321 }, { 0x15263748, 123456789 }, },
22 
23 	{ { 0, UTIME_NOW }, { 0x15263748, 123456789 }, },
24 	{ { 0x12345678, 987654321 }, { 0, UTIME_NOW }, },
25 	{ { 0, UTIME_NOW }, { 0, UTIME_NOW }, },
26 
27 	{ { 0, UTIME_OMIT }, { 0x15263748, 123456789 }, },
28 	{ { 0x12345678, 987654321 }, { 0, UTIME_OMIT }, },
29 	{ { 0, UTIME_OMIT }, { 0, UTIME_OMIT }, },
30 
31 	{ { 0, UTIME_NOW }, { 0, UTIME_OMIT }, },
32 	{ { 0, UTIME_OMIT }, { 0, UTIME_NOW }, },
33 };
34 
35 T_DECL(utimensat, "Try various versions of utimensat")
36 {
37 	T_SETUPBEGIN;
38 	T_ASSERT_POSIX_ZERO(chdir(dt_tmpdir()), NULL);
39 	// Skip the test if the current working directory is not on APFS.
40 	struct statfs sfs = { 0 };
41 	T_QUIET; T_ASSERT_POSIX_SUCCESS(statfs(".", &sfs), NULL);
42 	if (memcmp(&sfs.f_fstypename[0], "apfs", strlen("apfs")) != 0) {
43 		T_SKIP("utimensat is APFS-only, but working directory is non-APFS");
44 	}
45 	T_SETUPEND;
46 
47 	struct stat pre_st, post_st;
48 	int fd;
49 
50 	T_ASSERT_POSIX_SUCCESS((fd = open(FILENAME, O_CREAT | O_RDWR, 0644)), NULL);
51 	T_ASSERT_POSIX_ZERO(close(fd), NULL);
52 
53 	for (size_t i = 0; i < sizeof(tptr) / sizeof(tptr[0]); i++) {
54 		T_LOG("=== {%ld, %ld} {%ld, %ld} ===",
55 		    tptr[i][0].tv_sec, tptr[i][0].tv_nsec,
56 		    tptr[i][1].tv_sec, tptr[i][1].tv_nsec);
57 
58 		struct timespec now;
59 		clock_gettime(CLOCK_REALTIME, &now);
60 
61 		T_ASSERT_POSIX_ZERO(stat(FILENAME, &pre_st), NULL);
62 		T_ASSERT_POSIX_ZERO(utimensat(AT_FDCWD, FILENAME, tptr[i], 0), NULL);
63 		T_ASSERT_POSIX_ZERO(stat(FILENAME, &post_st), NULL);
64 
65 		if (tptr[i][0].tv_nsec == UTIME_NOW) {
66 			T_ASSERT_GE(post_st.st_atimespec.tv_sec, now.tv_sec, NULL);
67 		} else if (tptr[i][0].tv_nsec == UTIME_OMIT) {
68 			T_ASSERT_EQ(post_st.st_atimespec.tv_sec, pre_st.st_atimespec.tv_sec, NULL);
69 			T_ASSERT_EQ(post_st.st_atimespec.tv_nsec, pre_st.st_atimespec.tv_nsec, NULL);
70 		} else {
71 			T_ASSERT_EQ(post_st.st_atimespec.tv_sec, tptr[i][0].tv_sec, NULL);
72 			T_ASSERT_EQ(post_st.st_atimespec.tv_nsec, tptr[i][0].tv_nsec, NULL);
73 		}
74 
75 		if (tptr[i][1].tv_nsec == UTIME_NOW) {
76 			T_ASSERT_GE(post_st.st_mtimespec.tv_sec, now.tv_sec, NULL);
77 		} else if (tptr[i][1].tv_nsec == UTIME_OMIT) {
78 			T_ASSERT_EQ(post_st.st_mtimespec.tv_sec, pre_st.st_mtimespec.tv_sec, NULL);
79 			T_ASSERT_EQ(post_st.st_mtimespec.tv_nsec, pre_st.st_mtimespec.tv_nsec, NULL);
80 		} else {
81 			T_ASSERT_EQ(post_st.st_mtimespec.tv_sec, tptr[i][1].tv_sec, NULL);
82 			T_ASSERT_EQ(post_st.st_mtimespec.tv_nsec, tptr[i][1].tv_nsec, NULL);
83 		}
84 	}
85 }
86