diff --git a/common/os/os.h b/common/os/os.h
new file mode 100644
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--- /dev/null
+++ b/common/os/os.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 2010 TightVNC Team.  All Rights Reserved.
+ *
+ * This 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 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef OS_OS_H
+#define OS_OS_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/*
+ * Get home directory. If HOME environment variable is set then it is returned.
+ * Otherwise home directory is obtained via getpwuid function.
+ *
+ * Returns:
+ * 0 - Success
+ * -1 - Failure
+ */
+int gethomedir(char **dirp);
+
+#endif /* OS_OS_H */