1 /* Tests of mkfifoat and mknodat.
2 Copyright (C) 2009 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Eric Blake <ebb9@byu.net>, 2009. */
30 #define ASSERT(expr) \
35 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
42 typedef int (*test_func) (int, char const *, mode_t);
44 /* Wrapper to make testing mknodat easier. */
46 test_mknodat (int fd, char const *name, mode_t mode)
48 /* This is the only portable use of mknodat, per POSIX. */
49 return mknodat (fd, name, mode | S_IFIFO, 0);
56 test_func funcs[2] = { mkfifoat, test_mknodat };
57 const char *fifo = "test-mkfifoat.fifo";
59 /* Create handle for future use. */
60 int dfd = openat (AT_FDCWD, ".", O_RDONLY);
64 fputs ("skipping test: no support for named fifos\n", stderr);
68 /* Clean up anything from previous incomplete test. */
71 /* Test both functions. */
72 for (i = 0; i < 2; i++)
75 test_func func = funcs[i];
77 /* Sanity checks of failures. */
79 ASSERT (func (AT_FDCWD, "", 0600) == -1);
80 ASSERT (errno == ENOENT);
82 ASSERT (func (dfd, "", S_IRUSR | S_IWUSR) == -1);
83 ASSERT (errno == ENOENT);
85 ASSERT (func (AT_FDCWD, ".", 0600) == -1);
86 /* POSIX requires EEXIST, but Solaris gives EINVAL. */
87 ASSERT (errno == EEXIST || errno == EINVAL);
89 ASSERT (func (dfd, ".", 0600) == -1);
90 ASSERT (errno == EEXIST || errno == EINVAL);
92 /* Create fifo while cwd is '.', then stat it from '..'. */
93 ASSERT (func (AT_FDCWD, fifo, 0600) == 0);
95 ASSERT (func (dfd, fifo, 0600) == -1);
96 ASSERT (errno == EEXIST);
97 ASSERT (chdir ("..") == 0);
99 ASSERT (fstatat (AT_FDCWD, fifo, &st, 0) == -1);
100 ASSERT (errno == ENOENT);
101 memset (&st, 0, sizeof st);
102 ASSERT (fstatat (dfd, fifo, &st, 0) == 0);
103 ASSERT (S_ISFIFO (st.st_mode));
104 ASSERT (unlinkat (dfd, fifo, 0) == 0);
106 /* Create fifo while cwd is '..', then stat it from '.'. */
107 ASSERT (func (dfd, fifo, 0600) == 0);
108 ASSERT (fchdir (dfd) == 0);
110 ASSERT (func (AT_FDCWD, fifo, 0600) == -1);
111 ASSERT (errno == EEXIST);
112 memset (&st, 0, sizeof st);
113 ASSERT (fstatat (AT_FDCWD, fifo, &st, AT_SYMLINK_NOFOLLOW) == 0);
114 ASSERT (S_ISFIFO (st.st_mode));
115 memset (&st, 0, sizeof st);
116 ASSERT (fstatat (dfd, fifo, &st, AT_SYMLINK_NOFOLLOW) == 0);
117 ASSERT (S_ISFIFO (st.st_mode));
118 ASSERT (unlink (fifo) == 0);
121 ASSERT (close (dfd) == 0);