test_symlink_dir.c [plain text]
#include "test.h"
__FBSDID("$FreeBSD: src/usr.bin/tar/test/test_symlink_dir.c,v 1.1 2008/09/14 02:16:04 kientzle Exp $");
static int
mkfile(const char *name, int mode, const char *contents, ssize_t size)
{
int fd = open(name, O_CREAT | O_WRONLY, mode);
if (fd < 0)
return (-1);
if (size != write(fd, contents, size)) {
close(fd);
return (-1);
}
close(fd);
return (0);
}
DEFINE_TEST(test_symlink_dir)
{
struct stat st, st2;
int oldumask;
oldumask = umask(0);
assertEqualInt(0, mkdir("source", 0755));
assertEqualInt(0, mkfile("source/file", 0755, "a", 1));
assertEqualInt(0, mkfile("source/file2", 0755, "ab", 2));
assertEqualInt(0, mkdir("source/dir", 0755));
assertEqualInt(0, mkdir("source/dir/d", 0755));
assertEqualInt(0, mkfile("source/dir/f", 0755, "abc", 3));
assertEqualInt(0, mkdir("source/dir2", 0755));
assertEqualInt(0, mkdir("source/dir2/d2", 0755));
assertEqualInt(0, mkfile("source/dir2/f2", 0755, "abcd", 4));
assertEqualInt(0, mkdir("source/dir3", 0755));
assertEqualInt(0, mkdir("source/dir3/d3", 0755));
assertEqualInt(0, mkfile("source/dir3/f3", 0755, "abcde", 5));
assertEqualInt(0,
systemf("%s -cf test.tar -C source dir dir2 dir3 file file2",
testprog));
assertEqualInt(0, mkdir("dest1", 0755));
assertEqualInt(0, mkdir("dest1/real_dir", 0755));
assertEqualInt(0, symlink("real_dir", "dest1/dir"));
assertEqualInt(0, symlink("real_dir2", "dest1/dir2"));
assertEqualInt(0, mkfile("dest1/non_dir3", 0755, "abcdef", 6));
assertEqualInt(0, symlink("non_dir3", "dest1/dir3"));
assertEqualInt(0, mkfile("dest1/real_file", 0755, "abcdefg", 7));
assertEqualInt(0, symlink("real_file", "dest1/file"));
assertEqualInt(0, symlink("real_file2", "dest1/file2"));
assertEqualInt(0, systemf("%s -xf test.tar -C dest1", testprog));
assertEqualInt(0, lstat("dest1/dir", &st));
failure("symlink to dir was followed when it shouldn't be");
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest1/dir2", &st));
failure("Broken symlink wasn't replaced with dir");
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest1/dir3", &st));
failure("Symlink to non-dir wasn't replaced with dir");
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest1/file", &st));
failure("Symlink to existing file should be removed");
assert(S_ISREG(st.st_mode));
assertEqualInt(0, lstat("dest1/file2", &st));
failure("Symlink to non-existing file should be removed");
assert(S_ISREG(st.st_mode));
assertEqualInt(0, mkdir("dest2", 0755));
assertEqualInt(0, mkdir("dest2/real_dir", 0755));
assertEqualInt(0, symlink("real_dir", "dest2/dir"));
assertEqualInt(0, symlink("real_dir2", "dest2/dir2"));
assertEqualInt(0, mkfile("dest2/non_dir3", 0755, "abcdefgh", 8));
assertEqualInt(0, symlink("non_dir3", "dest2/dir3"));
assertEqualInt(0, mkfile("dest2/real_file", 0755, "abcdefghi", 9));
assertEqualInt(0, symlink("real_file", "dest2/file"));
assertEqualInt(0, symlink("real_file2", "dest2/file2"));
assertEqualInt(0, systemf("%s -xPf test.tar -C dest2", testprog));
assertEqualInt(0, lstat("dest2/dir", &st));
failure("tar -xP removed symlink instead of following it");
if (assert(S_ISLNK(st.st_mode))) {
failure("The symlink should point to a directory");
assertEqualInt(0, stat("dest2/dir", &st));
assert(S_ISDIR(st.st_mode));
failure("The pre-existing directory should still be there");
assertEqualInt(0, lstat("dest2/real_dir", &st2));
assert(S_ISDIR(st2.st_mode));
assertEqualInt(st.st_dev, st2.st_dev);
failure("symlink should still point to the existing directory");
assertEqualInt(st.st_ino, st2.st_ino);
}
assertEqualInt(0, lstat("dest2/dir/d", &st));
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest2/dir/f", &st));
assert(S_ISREG(st.st_mode));
assertEqualInt(3, st.st_size);
assertEqualInt(0, lstat("dest2/dir2", &st));
failure("Broken symlink wasn't replaced with dir");
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest2/dir3", &st));
failure("Symlink to non-dir wasn't replaced with dir");
assert(S_ISDIR(st.st_mode));
assertEqualInt(0, lstat("dest2/file", &st));
failure("Symlink to existing file should be removed");
assert(S_ISREG(st.st_mode));
assertEqualInt(0, lstat("dest2/file2", &st));
failure("Symlink to non-existing file should be removed");
assert(S_ISREG(st.st_mode));
}