1 | /* Copyright (C) 1998-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <dirent.h> |
19 | #include <errno.h> |
20 | #include <fcntl.h> |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | #include <string.h> |
24 | #include <unistd.h> |
25 | #include <sys/stat.h> |
26 | |
27 | /* Name of the FIFO. */ |
28 | char tmpname[] = "fifoXXXXXX" ; |
29 | |
30 | |
31 | /* Do the real work. */ |
32 | static int |
33 | real_test (void) |
34 | { |
35 | DIR *dirp; |
36 | |
37 | /* This should not block for an FIFO. */ |
38 | dirp = opendir (name: tmpname); |
39 | |
40 | /* Successful. */ |
41 | if (dirp != NULL) |
42 | { |
43 | /* Oh, oh, how can this work? */ |
44 | fputs ("`opendir' succeeded on a FIFO???\n" , stdout); |
45 | closedir (dirp: dirp); |
46 | return 1; |
47 | } |
48 | |
49 | if (errno != ENOTDIR) |
50 | { |
51 | fprintf (stdout, "`opendir' return error `%s' instead of `%s'\n" , |
52 | strerror (errno), strerror (ENOTDIR)); |
53 | return 1; |
54 | } |
55 | |
56 | return 0; |
57 | } |
58 | |
59 | |
60 | static int |
61 | do_test (void) |
62 | { |
63 | int retval; |
64 | |
65 | if (mktemp (template: tmpname) == NULL) |
66 | { |
67 | perror ("mktemp" ); |
68 | return 1; |
69 | } |
70 | |
71 | /* Try to generate a FIFO. */ |
72 | if (mknod (path: tmpname, mode: 0600 | S_IFIFO, dev: 0) < 0) |
73 | { |
74 | perror ("mknod" ); |
75 | /* We cannot make this an error. */ |
76 | return 0; |
77 | } |
78 | |
79 | retval = real_test (); |
80 | |
81 | remove (tmpname); |
82 | |
83 | return retval; |
84 | } |
85 | |
86 | |
87 | static void |
88 | do_cleanup (void) |
89 | { |
90 | remove (tmpname); |
91 | } |
92 | #define CLEANUP_HANDLER do_cleanup |
93 | |
94 | #include <support/test-driver.c> |
95 | |