<p><li>File descriptors specified by the client and allowed according to the
configuration language will be connected. Each file descriptor is
opened for reading or writing. Communication is via pipes, one end of
each pipe being open on the appropriate file descriptor in the service
program (when it is invoked) and the other end being held by the
client process, which will read and write files it opens on behalf of
<p><li>File descriptors specified by the client and allowed according to the
configuration language will be connected. Each file descriptor is
opened for reading or writing. Communication is via pipes, one end of
each pipe being open on the appropriate file descriptor in the service
program (when it is invoked) and the other end being held by the
client process, which will read and write files it opens on behalf of