1 | /* futimesat basic tests. |
2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <dirent.h> |
20 | #include <errno.h> |
21 | #include <fcntl.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | #include <string.h> |
25 | #include <unistd.h> |
26 | #include <sys/stat.h> |
27 | #include <sys/time.h> |
28 | |
29 | #include <support/test-driver.h> |
30 | #include <support/temp_file.h> |
31 | #include <support/xunistd.h> |
32 | |
33 | #ifndef struct_stat |
34 | # define struct_stat struct stat64 |
35 | # define fstat fstat64 |
36 | # define fstatat fstatat64 |
37 | #endif |
38 | |
39 | static int dir_fd; |
40 | |
41 | static void |
42 | prepare (int argc, char *argv[]) |
43 | { |
44 | size_t test_dir_len = strlen (test_dir); |
45 | static const char dir_name[] = "/tst-futimesat.XXXXXX" ; |
46 | |
47 | size_t dirbuflen = test_dir_len + sizeof (dir_name); |
48 | char *dirbuf = malloc (size: dirbuflen); |
49 | if (dirbuf == NULL) |
50 | { |
51 | puts (s: "out of memory" ); |
52 | exit (1); |
53 | } |
54 | |
55 | snprintf (s: dirbuf, maxlen: dirbuflen, format: "%s%s" , test_dir, dir_name); |
56 | if (mkdtemp (template: dirbuf) == NULL) |
57 | { |
58 | puts (s: "cannot create temporary directory" ); |
59 | exit (1); |
60 | } |
61 | |
62 | add_temp_file (name: dirbuf); |
63 | |
64 | dir_fd = open (file: dirbuf, O_RDONLY | O_DIRECTORY); |
65 | if (dir_fd == -1) |
66 | { |
67 | puts (s: "cannot open directory" ); |
68 | exit (1); |
69 | } |
70 | } |
71 | #define PREPARE prepare |
72 | |
73 | static int |
74 | do_test (void) |
75 | { |
76 | /* fdopendir takes over the descriptor, make a copy. */ |
77 | int dupfd = dup (fd: dir_fd); |
78 | if (dupfd == -1) |
79 | { |
80 | puts (s: "dup failed" ); |
81 | return 1; |
82 | } |
83 | if (lseek (fd: dupfd, offset: 0, SEEK_SET) != 0) |
84 | { |
85 | puts (s: "1st lseek failed" ); |
86 | return 1; |
87 | } |
88 | |
89 | /* The directory should be empty safe the . and .. files. */ |
90 | DIR *dir = fdopendir (fd: dupfd); |
91 | if (dir == NULL) |
92 | { |
93 | puts (s: "fdopendir failed" ); |
94 | return 1; |
95 | } |
96 | struct dirent64 *d; |
97 | while ((d = readdir64 (dirp: dir)) != NULL) |
98 | if (strcmp (d->d_name, "." ) != 0 && strcmp (d->d_name, ".." ) != 0) |
99 | { |
100 | printf (format: "temp directory contains file \"%s\"\n" , d->d_name); |
101 | return 1; |
102 | } |
103 | closedir (dirp: dir); |
104 | |
105 | /* Try to create a file. */ |
106 | int fd = openat (fd: dir_fd, file: "some-file" , O_CREAT|O_RDWR|O_EXCL, 0666); |
107 | if (fd == -1) |
108 | { |
109 | if (errno == ENOSYS) |
110 | { |
111 | puts (s: "*at functions not supported" ); |
112 | return 0; |
113 | } |
114 | |
115 | puts (s: "file creation failed" ); |
116 | return 1; |
117 | } |
118 | xwrite (fd, "hello" , 5); |
119 | puts (s: "file created" ); |
120 | |
121 | struct_stat st1; |
122 | if (fstat (fd: fd, buf: &st1) != 0) |
123 | { |
124 | puts (s: "fstat64 failed" ); |
125 | return 1; |
126 | } |
127 | |
128 | close (fd: fd); |
129 | |
130 | struct timeval tv[2]; |
131 | tv[0].tv_sec = st1.st_atime + 1; |
132 | tv[0].tv_usec = 0; |
133 | tv[1].tv_sec = st1.st_mtime + 1; |
134 | tv[1].tv_usec = 0; |
135 | if (futimesat (fd: dir_fd, file: "some-file" , tvp: tv) != 0) |
136 | { |
137 | puts (s: "futimesat failed" ); |
138 | return 1; |
139 | } |
140 | |
141 | struct_stat st2; |
142 | if (fstatat (fd: dir_fd, file: "some-file" , buf: &st2, flag: 0) != 0) |
143 | { |
144 | puts (s: "fstatat64 failed" ); |
145 | return 1; |
146 | } |
147 | |
148 | if (st2.st_mtime != tv[1].tv_sec |
149 | #ifdef _STATBUF_ST_NSEC |
150 | || st2.st_mtim.tv_nsec != 0 |
151 | #endif |
152 | ) |
153 | { |
154 | puts (s: "stat shows different mtime" ); |
155 | return 1; |
156 | } |
157 | |
158 | |
159 | if (unlinkat (fd: dir_fd, name: "some-file" , flag: 0) != 0) |
160 | { |
161 | puts (s: "unlinkat failed" ); |
162 | return 1; |
163 | } |
164 | |
165 | close (fd: dir_fd); |
166 | |
167 | return 0; |
168 | } |
169 | |
170 | #include <support/test-driver.c> |
171 | |