9 static void prepare (void);
10 #define PREPARE(argc, argv) prepare ()
12 static int do_test (void);
13 #define TEST_FUNCTION do_test ()
15 #include "../test-skeleton.c"
22 size_t test_dir_len = strlen (test_dir);
23 static const char dir_name[] = "/tst-openat.XXXXXX";
25 size_t dirbuflen = test_dir_len + sizeof (dir_name);
26 char *dirbuf = malloc (dirbuflen);
29 puts ("out of memory");
33 snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
34 if (mkdtemp (dirbuf) == NULL)
36 puts ("cannot create temporary directory");
40 add_temp_file (dirbuf);
42 dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
45 puts ("cannot open directory");
54 /* fdopendir takes over the descriptor, make a copy. */
55 int dupfd = dup (dir_fd);
61 if (lseek (dupfd, 0, SEEK_SET) != 0)
63 puts ("1st lseek failed");
67 /* The directory should be empty safe the . and .. files. */
68 DIR *dir = fdopendir (dupfd);
71 puts ("fdopendir failed");
75 while ((d = readdir64 (dir)) != NULL)
76 if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
78 printf ("temp directory contains file \"%s\"\n", d->d_name);
83 /* Try to create a file. */
84 int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
89 puts ("*at functions not supported");
93 puts ("file creation failed");
96 write (fd, "hello", 5);
98 /* Before closing the file, try using this file descriptor to open
99 another file. This must fail. */
100 int fd2 = openat (fd, "should-not-work", O_CREAT|O_RDWR, 0666);
103 puts ("openat using descriptor for normal file worked");
106 if (errno != ENOTDIR)
108 puts ("error for openat using descriptor for normal file not ENOTDIR ");
113 puts ("file created");
115 /* fdopendir takes over the descriptor, make a copy. */
116 dupfd = dup (dir_fd);
122 if (lseek (dupfd, 0, SEEK_SET) != 0)
124 puts ("2nd lseek failed");
128 /* The directory should be empty safe the . and .. files. */
129 dir = fdopendir (dupfd);
132 puts ("fdopendir failed");
135 bool seen_file = false;
136 while ((d = readdir64 (dir)) != NULL)
137 if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
139 if (strcmp (d->d_name, "some-file") != 0)
141 printf ("temp directory contains file \"%s\"\n", d->d_name);
151 puts ("file not created in correct directory");
155 int cwdfd = open (".", O_RDONLY | O_DIRECTORY);
158 puts ("cannot get descriptor for cwd");
162 if (fchdir (dir_fd) != 0)
164 puts ("1st fchdir failed");
168 if (unlink ("some-file") != 0)
170 puts ("unlink failed");
174 if (fchdir (cwdfd) != 0)
176 puts ("2nd fchdir failed");
183 /* With the file descriptor closed the next call must fail. */
184 fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
187 puts ("openat using closed descriptor succeeded");
192 puts ("openat using closed descriptor did not set EBADF");
196 fd = openat (-1, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
199 puts ("openat using -1 descriptor succeeded");
204 puts ("openat using -1 descriptor did not set EBADF");