#include <sys/stat.h>
-#ifndef HAVE_MKFIFO
-# define HAVE_MKFIFO 0
-#endif
-#ifndef HAVE_MKNOD
-# define HAVE_MKNOD 0
-#endif
-
-/* For now, all known systems either have both mkfifo and mknod, or
- neither. If this is not true, we can implement the portable
- aspects of one using the other (POSIX only requires mknod to create
- fifos; all other uses of mknod are for root users and outside the
- realm of POSIX). */
-#if HAVE_MKNOD != HAVE_MKFIFO
-# error Please report this message and your system to bug-gnulib@gnu.org.
-#endif
-
#if !HAVE_MKFIFO
-/* Mingw lacks mkfifo and mknod, so this wrapper is trivial. */
# include <errno.h>
-int
-mkfifoat (int fd _UNUSED_PARAMETER_, char const *path _UNUSED_PARAMETER_,
- mode_t mode _UNUSED_PARAMETER_)
-{
- errno = ENOSYS;
- return -1;
-}
+/* Mingw lacks mkfifo, so this wrapper is trivial. */
int
-mknodat (int fd _UNUSED_PARAMETER_, char const *path _UNUSED_PARAMETER_,
- mode_t mode _UNUSED_PARAMETER_, dev_t dev _UNUSED_PARAMETER_)
+mkfifoat (int fd _UNUSED_PARAMETER_, char const *path _UNUSED_PARAMETER_,
+ mode_t mode _UNUSED_PARAMETER_)
{
errno = ENOSYS;
return -1;
# undef AT_FUNC_POST_FILE_PARAM_DECLS
# undef AT_FUNC_POST_FILE_ARGS
-/* Create a file system node FILE relative to directory FD, with
- access permissions and file type in MODE, and device type in DEV.
- Usually, non-root applications can only create named fifos, with
- DEV set to 0. If possible, create the node without changing the
- working directory. Otherwise, resort to using save_cwd/fchdir,
- then mknod/restore_cwd. If either the save_cwd or the restore_cwd
- fails, then give a diagnostic and exit nonzero. */
-
-# define AT_FUNC_NAME mknodat
-# define AT_FUNC_F1 mknod
-# define AT_FUNC_POST_FILE_PARAM_DECLS , mode_t mode, dev_t dev
-# define AT_FUNC_POST_FILE_ARGS , mode, dev
-# include "at-func.c"
-# undef AT_FUNC_NAME
-# undef AT_FUNC_F1
-# undef AT_FUNC_POST_FILE_PARAM_DECLS
-# undef AT_FUNC_POST_FILE_ARGS
-
#endif /* HAVE_MKFIFO */
--- /dev/null
+/* Create an inode relative to an open directory.
+ Copyright (C) 2009 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* written by Eric Blake */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+#if !HAVE_MKNOD
+
+# include <errno.h>
+
+/* Mingw lacks mknod, so this wrapper is trivial. */
+
+int
+mknodat (int fd _UNUSED_PARAMETER_, char const *path _UNUSED_PARAMETER_,
+ mode_t mode _UNUSED_PARAMETER_, dev_t dev _UNUSED_PARAMETER_)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+#else /* HAVE_MKFIFO */
+
+/* Create a file system node FILE relative to directory FD, with
+ access permissions and file type in MODE, and device type in DEV.
+ Usually, non-root applications can only create named fifos, with
+ DEV set to 0. If possible, create the node without changing the
+ working directory. Otherwise, resort to using save_cwd/fchdir,
+ then mknod/restore_cwd. If either the save_cwd or the restore_cwd
+ fails, then give a diagnostic and exit nonzero. */
+
+# define AT_FUNC_NAME mknodat
+# define AT_FUNC_F1 mknod
+# define AT_FUNC_POST_FILE_PARAM_DECLS , mode_t mode, dev_t dev
+# define AT_FUNC_POST_FILE_ARGS , mode, dev
+# include "at-func.c"
+# undef AT_FUNC_NAME
+# undef AT_FUNC_F1
+# undef AT_FUNC_POST_FILE_PARAM_DECLS
+# undef AT_FUNC_POST_FILE_ARGS
+
+#endif /* HAVE_MKFIFO */
#include <fcntl.h>
#include <errno.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
do \
{ \
if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
} \
while (0)
+#define BASE "test-mkfifoat.t"
+
+#include "test-mkfifo.h"
+
typedef int (*test_func) (int, char const *, mode_t);
-/* Wrapper to make testing mknodat easier. */
+static int dfd = AT_FDCWD;
+
+/* Wrapper to test mknodat like mkfifoat. */
static int
test_mknodat (int fd, char const *name, mode_t mode)
{
return mknodat (fd, name, mode | S_IFIFO, 0);
}
+/* Wrapper to test mkfifoat like mkfifo. */
+static int
+do_mkfifoat (char const *name, mode_t mode)
+{
+ return mkfifoat (dfd, name, mode);
+}
+
+/* Wrapper to test mknodat like mkfifo. */
+static int
+do_mknodat (char const *name, mode_t mode)
+{
+ return mknodat (dfd, name, mode | S_IFIFO, 0);
+}
+
int
main (void)
{
int i;
test_func funcs[2] = { mkfifoat, test_mknodat };
- const char *fifo = "test-mkfifoat.fifo";
+ int result;
- /* Create handle for future use. */
- int dfd = openat (AT_FDCWD, ".", O_RDONLY);
- ASSERT (0 <= dfd);
-
-#if !HAVE_MKFIFO
- fputs ("skipping test: no support for named fifos\n", stderr);
- return 77;
-#endif
+ /* Remove any leftovers from a previous partial run. */
+ ASSERT (system ("rm -rf " BASE "*") == 0);
- /* Clean up anything from previous incomplete test. */
- remove (fifo);
+ /* Basic tests. */
+ result = test_mkfifo (do_mkfifoat, true);
+ ASSERT (test_mkfifo (do_mknodat, false) == result);
+ dfd = open (".", O_RDONLY);
+ ASSERT (0 <= dfd);
+ ASSERT (test_mkfifo (do_mkfifoat, false) == result);
+ ASSERT (test_mkfifo (do_mknodat, false) == result);
- /* Test both functions. */
+ /* Test directory-relative handling of both functions. */
for (i = 0; i < 2; i++)
{
struct stat st;
test_func func = funcs[i];
- /* Sanity checks of failures. */
- errno = 0;
- ASSERT (func (AT_FDCWD, "", 0600) == -1);
- ASSERT (errno == ENOENT);
- errno = 0;
- ASSERT (func (dfd, "", S_IRUSR | S_IWUSR) == -1);
- ASSERT (errno == ENOENT);
- errno = 0;
- ASSERT (func (AT_FDCWD, ".", 0600) == -1);
- /* POSIX requires EEXIST, but Solaris gives EINVAL. */
- ASSERT (errno == EEXIST || errno == EINVAL);
- errno = 0;
- ASSERT (func (dfd, ".", 0600) == -1);
- ASSERT (errno == EEXIST || errno == EINVAL);
-
/* Create fifo while cwd is '.', then stat it from '..'. */
- ASSERT (func (AT_FDCWD, fifo, 0600) == 0);
+ ASSERT (func (AT_FDCWD, BASE "fifo", 0600) == 0);
errno = 0;
- ASSERT (func (dfd, fifo, 0600) == -1);
+ ASSERT (func (dfd, BASE "fifo", 0600) == -1);
ASSERT (errno == EEXIST);
ASSERT (chdir ("..") == 0);
errno = 0;
- ASSERT (fstatat (AT_FDCWD, fifo, &st, 0) == -1);
+ ASSERT (fstatat (AT_FDCWD, BASE "fifo", &st, 0) == -1);
ASSERT (errno == ENOENT);
memset (&st, 0, sizeof st);
- ASSERT (fstatat (dfd, fifo, &st, 0) == 0);
+ ASSERT (fstatat (dfd, BASE "fifo", &st, 0) == 0);
ASSERT (S_ISFIFO (st.st_mode));
- ASSERT (unlinkat (dfd, fifo, 0) == 0);
+ ASSERT (unlinkat (dfd, BASE "fifo", 0) == 0);
/* Create fifo while cwd is '..', then stat it from '.'. */
- ASSERT (func (dfd, fifo, 0600) == 0);
+ ASSERT (func (dfd, BASE "fifo", 0600) == 0);
ASSERT (fchdir (dfd) == 0);
errno = 0;
- ASSERT (func (AT_FDCWD, fifo, 0600) == -1);
+ ASSERT (func (AT_FDCWD, BASE "fifo", 0600) == -1);
ASSERT (errno == EEXIST);
memset (&st, 0, sizeof st);
- ASSERT (fstatat (AT_FDCWD, fifo, &st, AT_SYMLINK_NOFOLLOW) == 0);
+ ASSERT (fstatat (AT_FDCWD, BASE "fifo", &st, AT_SYMLINK_NOFOLLOW) == 0);
ASSERT (S_ISFIFO (st.st_mode));
memset (&st, 0, sizeof st);
- ASSERT (fstatat (dfd, fifo, &st, AT_SYMLINK_NOFOLLOW) == 0);
+ ASSERT (fstatat (dfd, BASE "fifo", &st, AT_SYMLINK_NOFOLLOW) == 0);
ASSERT (S_ISFIFO (st.st_mode));
- ASSERT (unlink (fifo) == 0);
+ ASSERT (unlink (BASE "fifo") == 0);
}
ASSERT (close (dfd) == 0);
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