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     FILTER-SLIP(2)                                     FILTER-SLIP(2)

     NAME
          slip - SLIP data framing protocol

     SYNOPSIS
          include "filter.m";

          slip := load Filter Filter->SLIPPATH;

          init:  fn();
          start: fn(param: string): chan of ref Rq;

     DESCRIPTION
          Slip provides the SLIP data framing protocol described by
          RFC1055.  The module is an implementation of the general
          data-processing module type Filter; see filter(2) for
          details of that general interface.

          Init must be called before any other operation of the mod-
          ule.

          Start begins SLIP line encoding or decoding via the channel
          it returns, following the protocol of filter(2). Param is
          one of the two following strings:

          encode  The filter takes the block of data obtained by each
                  Rq.Fill message, adds framing and escape characters
                  as required, and returns the resulting data block in
                  an Rq.Result message.

          decode  The filter operates on the data in Rq.Fill messages
                  as a single stream of bytes, providing an Rq.Result
                  message for each framed message found in the stream,
                  with escape characters processed to retrieve the
                  original data.

     SOURCE
          /appl/lib/slip.b

     SEE ALSO
          filter(2)

     Page 1                       Plan 9            (printed 12/22/24)