netatalk - File and Print Server for AppleTalk networks

netatalk is a server software for AppleTalk networks. Features include:

o Access to the UNIX file system for Macintosh and other systems with
  AppleShare client software.

o Spool PostScript print jobs to the lpd(8) spool system via Printer Access
  Protocol (PAP).

o Output PostScript print jobs from the lpd(8) spool system via Printer
  Access Protocol (PAP).

o Filter PostScript, ASCII, and various other formats to PostScript,
  including banner pages and page reversal.

o Route AppleTalk between multiple Ethernet interfaces.

Requires AppleTalk support in the kernel (OpenBSD 2.2 or newer).
Compile a kernel with option NETATALK

See http://www.umich.edu/~rsug/netatalk/ for further information.