than AF_INET and AF_INET6.
(make_local_info): New function.
(io_listen_local): Take a local_info as argument. Fixed umask.
(io_connect_local): Take a local_info as argument.
(check_user_permissions): #if:ed out (replaced by code in
unix_user.c).
(io_read_user_file): Likewise.

Rev: src/io.c:1.116