/* Tests of linkat.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009-2014 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 <unistd.h>
+#include "signature.h"
+SIGNATURE_CHECK (linkat, int, (int, char const *, int, char const *, int));
+
#include <fcntl.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/stat.h>
#include "areadlink.h"
#include "filenamecat.h"
#include "same-inode.h"
-#include "xgetcwd.h"
-
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
+#include "ignore-value.h"
+#include "macros.h"
#define BASE "test-linkat.t"
return linkat (dfd1, name1, dfd2, name2, flag);
}
+/* Can we expect that link() and linkat(), when called on a symlink,
+ increment the link count of that symlink? */
+#if LINK_FOLLOWS_SYMLINKS == 0
+# define EXPECT_LINK_HARDLINKS_SYMLINKS 1
+#elif LINK_FOLLOWS_SYMLINKS == -1
+extern int __xpg4;
+# define EXPECT_LINK_HARDLINKS_SYMLINKS (__xpg4 == 0)
+#else
+# define EXPECT_LINK_HARDLINKS_SYMLINKS 0
+#endif
+
/* Wrapper to see if two symlinks act the same. */
static void
check_same_link (char const *name1, char const *name2)
ASSERT (contents1);
ASSERT (contents2);
ASSERT (strcmp (contents1, contents2) == 0);
- if (!LINK_FOLLOWS_SYMLINKS)
+ if (EXPECT_LINK_HARDLINKS_SYMLINKS)
ASSERT (SAME_INODE (st1, st2));
free (contents1);
free (contents2);
}
int
-main ()
+main (void)
{
int i;
int dfd;
int result;
/* Clean up any trash from prior testsuite runs. */
- ASSERT (system ("rm -rf " BASE "*") == 0);
+ ignore_value (system ("rm -rf " BASE "*"));
- /* Test basic link functionality, without mentioning symlinks. */
+ /* Test behaviour for invalid file descriptors. */
{
- result = test_link (do_link, false);
- dfd1 = open (".", O_RDONLY);
- ASSERT (0 <= dfd1);
- ASSERT (test_link (do_link, false) == result);
- dfd2 = dfd1;
- ASSERT (test_link (do_link, false) == result);
- dfd1 = AT_FDCWD;
- ASSERT (test_link (do_link, false) == result);
- flag = 0;
- ASSERT (test_link (do_link, false) == result);
- dfd1 = dfd2;
- ASSERT (test_link (do_link, false) == result);
- dfd2 = AT_FDCWD;
- ASSERT (test_link (do_link, false) == result);
- ASSERT (close (dfd1) == 0);
- dfd1 = AT_FDCWD;
- ASSERT (test_link (do_link, false) == result);
+ errno = 0;
+ ASSERT (linkat (-1, "foo", AT_FDCWD, "bar", 0) == -1);
+ ASSERT (errno == EBADF);
}
+ {
+ close (99);
+ errno = 0;
+ ASSERT (linkat (99, "foo", AT_FDCWD, "bar", 0) == -1);
+ ASSERT (errno == EBADF);
+ }
+ ASSERT (close (creat (BASE "oo", 0600)) == 0);
+ {
+ errno = 0;
+ ASSERT (linkat (AT_FDCWD, BASE "oo", -1, "bar", 0) == -1);
+ ASSERT (errno == EBADF);
+ }
+ {
+ errno = 0;
+ ASSERT (linkat (AT_FDCWD, BASE "oo", 99, "bar", 0) == -1);
+ ASSERT (errno == EBADF);
+ }
+ ASSERT (unlink (BASE "oo") == 0);
+
+ /* Test basic link functionality, without mentioning symlinks. */
+ result = test_link (do_link, true);
+ dfd1 = open (".", O_RDONLY);
+ ASSERT (0 <= dfd1);
+ ASSERT (test_link (do_link, false) == result);
+ dfd2 = dfd1;
+ ASSERT (test_link (do_link, false) == result);
+ dfd1 = AT_FDCWD;
+ ASSERT (test_link (do_link, false) == result);
+ flag = 0;
+ ASSERT (test_link (do_link, false) == result);
+ dfd1 = dfd2;
+ ASSERT (test_link (do_link, false) == result);
+ dfd2 = AT_FDCWD;
+ ASSERT (test_link (do_link, false) == result);
+ ASSERT (close (dfd1) == 0);
+ dfd1 = AT_FDCWD;
+ ASSERT (test_link (do_link, false) == result);
/* Create locations to manipulate. */
ASSERT (mkdir (BASE "sub1", 0700) == 0);
ASSERT (mkdir (BASE "sub2", 0700) == 0);
- dfd = creat (BASE "00", 0600);
- ASSERT (0 <= dfd);
- ASSERT (close (dfd) == 0);
- cwd = xgetcwd ();
+ ASSERT (close (creat (BASE "00", 0600)) == 0);
+ cwd = getcwd (NULL, 0);
+ ASSERT (cwd);
dfd = open (BASE "sub1", O_RDONLY);
ASSERT (0 <= dfd);
do the other variant after the loop. */
for (i = 0; i < 32; i++)
{
- int flag = (i & 0x10 ? AT_SYMLINK_FOLLOW : 0);
int fd1 = (i & 8) ? dfd : AT_FDCWD;
- char *file1 = file_name_concat ((i & 4) ? ".." : cwd, BASE "xx", NULL);
+ char *file1 = mfile_name_concat ((i & 4) ? ".." : cwd, BASE "xx", NULL);
int fd2 = (i & 2) ? dfd : AT_FDCWD;
- char *file2 = file_name_concat ((i & 1) ? ".." : cwd, BASE "xx", NULL);
+ char *file2 = mfile_name_concat ((i & 1) ? ".." : cwd, BASE "xx", NULL);
+ ASSERT (file1);
+ ASSERT (file2);
+ flag = (i & 0x10 ? AT_SYMLINK_FOLLOW : 0);
ASSERT (sprintf (strchr (file1, '\0') - 2, "%02d", i) == 2);
ASSERT (sprintf (strchr (file2, '\0') - 2, "%02d", i + 1) == 2);
ASSERT (rmdir (BASE "sub1") == 0);
ASSERT (rmdir (BASE "sub2") == 0);
free (cwd);
- fputs ("skipping test: symlinks not supported on this filesystem\n",
- stderr);
+ if (!result)
+ fputs ("skipping test: symlinks not supported on this file system\n",
+ stderr);
return result;
}
dfd = open (".", O_RDONLY);
ASSERT (errno == EEXIST || errno == EPERM || errno == EACCES);
errno = 0;
ASSERT (linkat (dfd, BASE "link1", dfd, BASE "sub1/", 0) == -1);
- ASSERT (errno == EEXIST);
+ ASSERT (errno == EEXIST || errno == ENOTDIR);
errno = 0;
ASSERT (linkat (dfd, BASE "link1", dfd, BASE "sub1",
AT_SYMLINK_FOLLOW) == -1);
errno = 0;
ASSERT (linkat (dfd, BASE "link1/", dfd, BASE "sub1",
AT_SYMLINK_FOLLOW) == -1);
- ASSERT (errno == EEXIST || errno == EPERM || errno == EACCES);
+ ASSERT (errno == EEXIST || errno == EPERM || errno == EACCES
+ || errno == EINVAL);
errno = 0;
ASSERT (linkat (dfd, BASE "link1", dfd, BASE "sub1/",
AT_SYMLINK_FOLLOW) == -1);
- ASSERT (errno == EEXIST || errno == EPERM || errno == EACCES);
+ ASSERT (errno == EEXIST || errno == EPERM || errno == EACCES
+ || errno == EINVAL);
errno = 0;
ASSERT (linkat (dfd, BASE "link1", dfd, BASE "link2", 0) == -1);
ASSERT (errno == EEXIST);
errno = 0;
ASSERT (linkat (dfd, BASE "link2/", dfd, BASE "link5",
AT_SYMLINK_FOLLOW) == -1);
- ASSERT (errno == ENOTDIR);
+ ASSERT (errno == ENOTDIR || errno == EINVAL);
errno = 0;
ASSERT (linkat (dfd, BASE "link3/", dfd, BASE "link5", 0) == -1);
ASSERT (errno == ELOOP);
errno = 0;
ASSERT (linkat (dfd, BASE "link3/", dfd, BASE "link5",
AT_SYMLINK_FOLLOW) == -1);
- ASSERT (errno == ELOOP);
+ ASSERT (errno == ELOOP || errno == EINVAL);
errno = 0;
ASSERT (linkat (dfd, BASE "link4/", dfd, BASE "link5", 0) == -1);
ASSERT (errno == ENOENT);
errno = 0;
ASSERT (linkat (dfd, BASE "link4/", dfd, BASE "link5",
AT_SYMLINK_FOLLOW) == -1);
- ASSERT (errno == ENOENT);
+ ASSERT (errno == ENOENT || errno == EINVAL);
/* Check for hard links to symlinks. */
ASSERT (linkat (dfd, BASE "link1", dfd, BASE "link5", 0) == 0);
projects / gnulib.git / blobdiff