Logclean.c is a tool to clean entries in utmp/wtmp which uses Operational System functions getutent(3), pututline(3), making it faster.
You can download it from the following link: https://packetstormsecurity.com/files/download/26197/logclean.c
Source: https://packetstormsecurity.com/files/26197/logclean.c.html