styxconv - convert between old 1995 Styx and current Styx (9P) .EX include "styxconv.m"; styxconv := load Styxconv Styxconv->PATHNEW2OLD; styxconv := load Styxconv Styxconv->PATHOLD2NEW; init: fn(); styxconv: fn(client: ref Sys->FD, server: ref Sys->FD); Styxconv converts between the obsolete 1995 version of the Styx protocol, as used for instance in Inferno's Third Edition and earlier, and the current file service protocol, previously also called `Styx' but based on 9P2000 and defined by intro (5).

Init must be called before any other function in the module.

The function styxconv takes two file descriptors: client should be a connection to a client requiring one version of the protocol; server should be a connection to a server serving the other version of the protocol. There are two conversion modules: PATHNEW2OLD converts from a new client to an old server; PATHOLD2NEW converts from an old client to a new server.

Styxconv should be spawned by the caller, and copies messages between client and server , converting as required. See the example below.

Apply styxconv to file descriptor fd , connected to an old Styx server, and return a file descriptor suitable for mounting with mount (2). .EX cvstyx(fd: ref Sys->FD): ref Sys->FD { styxconv := load Styxconv Styxconv->NEW2OLDPATH; if(styxconv == nil) return nil; p := array[2] of ref Sys->FD; if(sys->pipe(p) < 0) return nil; styxconv->init(); spawn styxconv->styxconv(p[1], fd); return p[0]; } /appl/lib/styxconv bind (1), sys-bind (2), sys-pipe (2), intro (5) There is no provision for 9P2000 authentication.