
     socket_release(3)      MudOS (5 Sep 1994)       socket_release(3)

     NAME
          socket_release() - release ownership of a socket to another
          object

     SYNOPSIS
          #include <socket_err.h>

          int socket_release( int socket, object ob,
                              string release_callback );

     DESCRIPTION
          socket_release() is used to change ownership (and control)
          of a socket to another object.  It is useful in daemon
          objects (like inetd) which handle connection set-up and then
          transfer a connected socket to another object for further
          processing.

          Socket ownership transfer involves a handshake between the
          current owner object and the socket to which the current
          owner wishes to transfer the socket.  The handshake is
          initiated when socket_release() is called.  socket_release()
          does appropriate security/integrity checking and then calls
          the release_callback function in object ob.  This function
          is used to notify ob that socket ownership is being
          transferred to it.  It is then ob's responsibility to call
          socket_acquire() within the release callback function.  If
          socket_acquire() is called then the handshake is complete
          and socket ownership has been successfully transferred to
          ob.  ob may decline to accept responsibility for the socket
          by not calling socket_acquire(), in which case ownership
          does not change and the current socket owner must decide how
          to respond to this.

          If the socket owner is successfully transfered then
          socket_release() returns EESUCCESS.  If ob does not accept
          ownership for the socket then EESOCKNOTRLSD is returned.
          Other errors can be returned based on security violation,
          bad socket descriptor vbalues, etc.

     SEE ALSO
          socket_acquire(3)

     Page 1                                          (printed 3/16/95)

