/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <fcntl.h>
#include <unistd.h>

#include "basic/alloc-util.h"
#include "basic/fd-util.h"
#include "basic/fileio.h"
#include "basic/macro.h"
#include "basic/stat-util.h"

static void test_files_same(void) {
        _cleanup_close_ int fd = -1;
        char name[] = "/tmp/test-files_same.XXXXXX";
        char name_alias[] = "/tmp/test-files_same.alias";

        fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
        assert_se(fd >= 0);
        assert_se(symlink(name, name_alias) >= 0);

        assert_se(files_same(name, name));
        assert_se(files_same(name, name_alias));

        unlink(name);
        unlink(name_alias);
}

static void test_is_symlink(void) {
        char name[] = "/tmp/test-is_symlink.XXXXXX";
        char name_link[] = "/tmp/test-is_symlink.link";
        _cleanup_close_ int fd = -1;

        fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
        assert_se(fd >= 0);
        assert_se(symlink(name, name_link) >= 0);

        assert_se(is_symlink(name) == 0);
        assert_se(is_symlink(name_link) == 1);
        assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0);


        unlink(name);
        unlink(name_link);
}

int main(int argc, char *argv[]) {
        test_files_same();
        test_is_symlink();

        return 0;
}