manual: Correct argument order in mount examples [BZ #27207]
[glibc.git] / io / tst-futimesat.c
blobaf58ad06ddb1b27c74e0782f0dc528091659cc02
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/stat.h>
8 #include <sys/time.h>
11 static void prepare (void);
12 #define PREPARE(argc, argv) prepare ()
14 static int do_test (void);
15 #define TEST_FUNCTION do_test ()
17 #include "../test-skeleton.c"
19 static int dir_fd;
21 static void
22 prepare (void)
24 size_t test_dir_len = strlen (test_dir);
25 static const char dir_name[] = "/tst-futimesat.XXXXXX";
27 size_t dirbuflen = test_dir_len + sizeof (dir_name);
28 char *dirbuf = malloc (dirbuflen);
29 if (dirbuf == NULL)
31 puts ("out of memory");
32 exit (1);
35 snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
36 if (mkdtemp (dirbuf) == NULL)
38 puts ("cannot create temporary directory");
39 exit (1);
42 add_temp_file (dirbuf);
44 dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
45 if (dir_fd == -1)
47 puts ("cannot open directory");
48 exit (1);
53 static int
54 do_test (void)
56 /* fdopendir takes over the descriptor, make a copy. */
57 int dupfd = dup (dir_fd);
58 if (dupfd == -1)
60 puts ("dup failed");
61 return 1;
63 if (lseek (dupfd, 0, SEEK_SET) != 0)
65 puts ("1st lseek failed");
66 return 1;
69 /* The directory should be empty safe the . and .. files. */
70 DIR *dir = fdopendir (dupfd);
71 if (dir == NULL)
73 puts ("fdopendir failed");
74 return 1;
76 struct dirent64 *d;
77 while ((d = readdir64 (dir)) != NULL)
78 if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
80 printf ("temp directory contains file \"%s\"\n", d->d_name);
81 return 1;
83 closedir (dir);
85 /* Try to create a file. */
86 int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
87 if (fd == -1)
89 if (errno == ENOSYS)
91 puts ("*at functions not supported");
92 return 0;
95 puts ("file creation failed");
96 return 1;
98 write (fd, "hello", 5);
99 puts ("file created");
101 struct stat64 st1;
102 if (fstat64 (fd, &st1) != 0)
104 puts ("fstat64 failed");
105 return 1;
108 close (fd);
110 struct timeval tv[2];
111 tv[0].tv_sec = st1.st_atime + 1;
112 tv[0].tv_usec = 0;
113 tv[1].tv_sec = st1.st_mtime + 1;
114 tv[1].tv_usec = 0;
115 if (futimesat (dir_fd, "some-file", tv) != 0)
117 puts ("futimesat failed");
118 return 1;
121 struct stat64 st2;
122 if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
124 puts ("fstatat64 failed");
125 return 1;
128 if (st2.st_mtime != tv[1].tv_sec
129 #ifdef _STATBUF_ST_NSEC
130 || st2.st_mtim.tv_nsec != 0
131 #endif
134 puts ("stat shows different mtime");
135 return 1;
139 if (unlinkat (dir_fd, "some-file", 0) != 0)
141 puts ("unlinkat failed");
142 return 1;
145 close (dir_fd);
147 return 0;