lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | #include <dirent.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <stdio.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <string.h> |
| 6 | #include <unistd.h> |
| 7 | #include <sys/time.h> |
| 8 | |
| 9 | |
| 10 | static void prepare (void); |
| 11 | #define PREPARE(argc, argv) prepare () |
| 12 | |
| 13 | static int do_test (void); |
| 14 | #define TEST_FUNCTION do_test () |
| 15 | |
| 16 | #include "../test-skeleton.c" |
| 17 | |
| 18 | static int dir_fd; |
| 19 | |
| 20 | static void |
| 21 | prepare (void) |
| 22 | { |
| 23 | size_t test_dir_len = strlen (test_dir); |
| 24 | static const char dir_name[] = "/tst-futimesat.XXXXXX"; |
| 25 | |
| 26 | size_t dirbuflen = test_dir_len + sizeof (dir_name); |
| 27 | char *dirbuf = malloc (dirbuflen); |
| 28 | if (dirbuf == NULL) |
| 29 | { |
| 30 | puts ("out of memory"); |
| 31 | exit (1); |
| 32 | } |
| 33 | |
| 34 | snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name); |
| 35 | if (mkdtemp (dirbuf) == NULL) |
| 36 | { |
| 37 | puts ("cannot create temporary directory"); |
| 38 | exit (1); |
| 39 | } |
| 40 | |
| 41 | add_temp_file (dirbuf); |
| 42 | |
| 43 | dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY); |
| 44 | if (dir_fd == -1) |
| 45 | { |
| 46 | puts ("cannot open directory"); |
| 47 | exit (1); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | |
| 52 | static int |
| 53 | do_test (void) |
| 54 | { |
| 55 | /* fdopendir takes over the descriptor, make a copy. */ |
| 56 | int dupfd = dup (dir_fd); |
| 57 | if (dupfd == -1) |
| 58 | { |
| 59 | puts ("dup failed"); |
| 60 | return 1; |
| 61 | } |
| 62 | if (lseek (dupfd, 0, SEEK_SET) != 0) |
| 63 | { |
| 64 | puts ("1st lseek failed"); |
| 65 | return 1; |
| 66 | } |
| 67 | |
| 68 | /* The directory should be empty safe the . and .. files. */ |
| 69 | DIR *dir = fdopendir (dupfd); |
| 70 | if (dir == NULL) |
| 71 | { |
| 72 | puts ("fdopendir failed"); |
| 73 | return 1; |
| 74 | } |
| 75 | struct dirent64 *d; |
| 76 | while ((d = readdir64 (dir)) != NULL) |
| 77 | if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) |
| 78 | { |
| 79 | printf ("temp directory contains file \"%s\"\n", d->d_name); |
| 80 | return 1; |
| 81 | } |
| 82 | closedir (dir); |
| 83 | |
| 84 | /* Try to create a file. */ |
| 85 | int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); |
| 86 | if (fd == -1) |
| 87 | { |
| 88 | if (errno == ENOSYS) |
| 89 | { |
| 90 | puts ("*at functions not supported"); |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | puts ("file creation failed"); |
| 95 | return 1; |
| 96 | } |
| 97 | write (fd, "hello", 5); |
| 98 | puts ("file created"); |
| 99 | |
| 100 | struct stat64 st1; |
| 101 | if (fstat64 (fd, &st1) != 0) |
| 102 | { |
| 103 | puts ("fstat64 failed"); |
| 104 | return 1; |
| 105 | } |
| 106 | |
| 107 | close (fd); |
| 108 | |
| 109 | struct timeval tv[2]; |
| 110 | tv[0].tv_sec = st1.st_atime + 1; |
| 111 | tv[0].tv_usec = 0; |
| 112 | tv[1].tv_sec = st1.st_mtime + 1; |
| 113 | tv[1].tv_usec = 0; |
| 114 | if (futimesat (dir_fd, "some-file", tv) != 0) |
| 115 | { |
| 116 | puts ("futimesat failed"); |
| 117 | return 1; |
| 118 | } |
| 119 | |
| 120 | struct stat64 st2; |
| 121 | if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0) |
| 122 | { |
| 123 | puts ("fstatat64 failed"); |
| 124 | return 1; |
| 125 | } |
| 126 | |
| 127 | if (st2.st_mtime != tv[1].tv_sec |
| 128 | #ifdef _STATBUF_ST_NSEC |
| 129 | || st2.st_mtim.tv_nsec != 0 |
| 130 | #endif |
| 131 | ) |
| 132 | { |
| 133 | puts ("stat shows different mtime"); |
| 134 | return 1; |
| 135 | } |
| 136 | |
| 137 | |
| 138 | if (unlinkat (dir_fd, "some-file", 0) != 0) |
| 139 | { |
| 140 | puts ("unlinkat failed"); |
| 141 | return 1; |
| 142 | } |
| 143 | |
| 144 | close (dir_fd); |
| 145 | |
| 146 | return 0; |
| 147 | } |