AF_LOCAL SOCKETS

Sockets in AF_LOCAL (or AF_UNIX) address space can be referred like host names in pseudo top-level domain ".af-local". For example, a socket with address "/tmp/sock" can be referred as "sock.tmp.af-local", then it is referred in command line options like "-Psock.tmp.af-local", SERVER=http://sock.tmp.af-local:123", or so. Port number of socket is ignored in this naming.