/* Test of lstat() function.
- Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2008-2013 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
#include <sys/stat.h>
+/* Caution: lstat may be a function-like macro. Although this
+ signature check must pass, it may be the signature of the real (and
+ broken) lstat rather than rpl_lstat. Most code should not use the
+ address of lstat. */
+#include "signature.h"
+SIGNATURE_CHECK (lstat, int, (char const *, struct stat *));
+
#include <fcntl.h>
#include <errno.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "same-inode.h"
+#include "ignore-value.h"
+#include "macros.h"
-#if !HAVE_SYMLINK
-# define symlink(a,b) (-1)
-#endif
+#define BASE "test-lstat.t"
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
+#include "test-lstat.h"
-#define BASE "test-lstat.t"
+/* Wrapper around lstat, which works even if lstat is a function-like
+ macro, where test_lstat_func(lstat) would do the wrong thing. */
+static int
+do_lstat (char const *name, struct stat *st)
+{
+ return lstat (name, st);
+}
int
-main ()
+main (void)
{
- struct stat st1;
- struct stat st2;
-
/* Remove any leftovers from a previous partial run. */
- ASSERT (system ("rm -rf " BASE "*") == 0);
-
- /* Test for common directories. */
- ASSERT (lstat (".", &st1) == 0);
- ASSERT (lstat ("./", &st2) == 0);
- ASSERT (SAME_INODE (st1, st2));
- ASSERT (S_ISDIR (st1.st_mode));
- ASSERT (S_ISDIR (st2.st_mode));
- ASSERT (lstat ("/", &st1) == 0);
- ASSERT (lstat ("///", &st2) == 0);
- ASSERT (SAME_INODE (st1, st2));
- ASSERT (S_ISDIR (st1.st_mode));
- ASSERT (S_ISDIR (st2.st_mode));
- ASSERT (lstat ("..", &st1) == 0);
- ASSERT (S_ISDIR (st1.st_mode));
-
- /* Test for error conditions. */
- errno = 0;
- ASSERT (lstat ("", &st1) == -1);
- ASSERT (errno == ENOENT);
- errno = 0;
- ASSERT (lstat ("nosuch", &st1) == -1);
- ASSERT (errno == ENOENT);
- errno = 0;
- ASSERT (lstat ("nosuch/", &st1) == -1);
- ASSERT (errno == ENOENT);
-
- ASSERT (close (creat (BASE "file", 0600)) == 0);
- ASSERT (lstat (BASE "file", &st1) == 0);
- ASSERT (S_ISREG (st1.st_mode));
- errno = 0;
- ASSERT (lstat (BASE "file/", &st1) == -1);
- ASSERT (errno == ENOTDIR);
-
- /* Now for some symlink tests, where supported. We set up:
- link1 -> directory
- link2 -> file
- link3 -> dangling
- link4 -> loop
- then test behavior both with and without trailing slash.
- */
- if (symlink (".", BASE "link1") != 0)
- {
- ASSERT (unlink (BASE "file") == 0);
- fputs ("skipping test: symlinks not supported on this filesystem\n",
- stderr);
- return 77;
- }
- ASSERT (symlink (BASE "file", BASE "link2") == 0);
- ASSERT (symlink (BASE "nosuch", BASE "link3") == 0);
- ASSERT (symlink (BASE "link4", BASE "link4") == 0);
-
- ASSERT (lstat (BASE "link1", &st1) == 0);
- ASSERT (S_ISLNK (st1.st_mode));
- ASSERT (lstat (BASE "link1/", &st1) == 0);
- ASSERT (stat (BASE "link1", &st2) == 0);
- ASSERT (S_ISDIR (st1.st_mode));
- ASSERT (S_ISDIR (st2.st_mode));
- ASSERT (SAME_INODE (st1, st2));
-
- ASSERT (lstat (BASE "link2", &st1) == 0);
- ASSERT (S_ISLNK (st1.st_mode));
- errno = 0;
- ASSERT (lstat (BASE "link2/", &st1) == -1);
- ASSERT (errno == ENOTDIR);
-
- ASSERT (lstat (BASE "link3", &st1) == 0);
- ASSERT (S_ISLNK (st1.st_mode));
- errno = 0;
- ASSERT (lstat (BASE "link3/", &st1) == -1);
- ASSERT (errno == ENOENT);
-
- ASSERT (lstat (BASE "link4", &st1) == 0);
- ASSERT (S_ISLNK (st1.st_mode));
- errno = 0;
- ASSERT (lstat (BASE "link4/", &st1) == -1);
- ASSERT (errno == ELOOP);
-
- /* Cleanup. */
- ASSERT (unlink (BASE "file") == 0);
- ASSERT (unlink (BASE "link1") == 0);
- ASSERT (unlink (BASE "link2") == 0);
- ASSERT (unlink (BASE "link3") == 0);
- ASSERT (unlink (BASE "link4") == 0);
+ ignore_value (system ("rm -rf " BASE "*"));
- return 0;
+ return test_lstat_func (do_lstat, true);
}