1 | #include <dirent.h> |
---|---|
2 | #include <errno.h> |
3 | #include <errno.h> |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | #include <unistd.h> |
7 | #include <sys/types.h> |
8 | |
9 | |
10 | int |
11 | main (void) |
12 | { |
13 | DIR *dirp; |
14 | struct dirent* ent; |
15 | |
16 | /* open a dir stream */ |
17 | dirp = opendir (name: "/tmp"); |
18 | if (dirp == NULL) |
19 | { |
20 | if (errno == ENOENT) |
21 | exit (0); |
22 | |
23 | perror ("opendir"); |
24 | exit (1); |
25 | } |
26 | |
27 | /* close the directory file descriptor, making it invalid */ |
28 | if (close (dirfd (dirp)) != 0) |
29 | { |
30 | puts (s: "could not close directory file descriptor"); |
31 | /* This is not an error. It is not guaranteed this is possible. */ |
32 | return 0; |
33 | } |
34 | |
35 | ent = readdir (dirp: dirp); |
36 | |
37 | return ent != NULL || errno != EBADF; |
38 | } |
39 |