SafeTP 1.45 patches/info

• Supplied by me (more well-tested)
  • This patch adds some paranoia checks for the -c flag. It also fixes a bug that could cause sftpd to get into an infinite loop (a possible DoS).
• Supplied by others
  • This patch lets sftpd-1.45 compile under OpenBSD and Irix.
  • This patch lets you specify a file with usernames and IP addresses, and restricts access accordingly.