1 /* Test for fchmodat function. */
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"
24 size_t test_dir_len = strlen (test_dir);
25 static const char dir_name[] = "/tst-fchmodat.XXXXXX";
27 size_t dirbuflen = test_dir_len + sizeof (dir_name);
28 char *dirbuf = malloc (dirbuflen);
31 puts ("out of memory");
35 snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
36 if (mkdtemp (dirbuf) == NULL)
38 puts ("cannot create temporary directory");
42 add_temp_file (dirbuf);
44 dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
47 puts ("cannot open directory");
56 /* fdopendir takes over the descriptor, make a copy. */
57 int dupfd = dup (dir_fd);
63 if (lseek (dupfd, 0, SEEK_SET) != 0)
65 puts ("1st lseek failed");
69 /* The directory should be empty save the . and .. files. */
70 DIR *dir = fdopendir (dupfd);
73 puts ("fdopendir failed");
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);
87 /* Try to create a file. */
88 int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
93 puts ("*at functions not supported");
97 puts ("file creation failed");
100 write (fd, "hello", 5);
101 puts ("file created");
104 if (fstat64 (fd, &st1) != 0)
106 puts ("fstat64 failed");
110 /* Before closing the file, try using this file descriptor to open
111 another file. This must fail. */
112 if (fchmodat (fd, "some-file", 0400, 0) != -1)
114 puts ("fchmodat using descriptor for normal file worked");
117 if (errno != ENOTDIR)
120 error for fchmodat using descriptor for normal file not ENOTDIR ");
126 if ((st1.st_mode & 0777) != 0644)
128 printf ("openat created mode %04o, not 0644\n", (st1.st_mode & 0777));
132 if (fchmodat (dir_fd, "some-file", 0400, 0) != 0)
134 puts ("fchownat failed");
139 if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0)
141 puts ("fstatat64 failed");
145 if ((st2.st_mode & 0777) != 0400)
147 puts ("mode change failed");
151 if (unlinkat (dir_fd, "some-file", 0) != 0)
153 puts ("unlinkat failed");
157 /* Create a file descriptor which is closed again right away. */
158 int dir_fd2 = dup (dir_fd);
166 if (fchmodat (dir_fd2, "some-file", 0400, 0) != -1)
168 puts ("fchmodat using closed descriptor worked");
173 puts ("error for fchmodat using closed descriptor not EBADF ");
179 if (fchmodat (-1, "some-file", 0400, 0) != -1)
181 puts ("fchmodat using invalid descriptor worked");
186 puts ("error for fchmodat using invalid descriptor not EBADF ");