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(* sckt.def provides a minimal interface to tcp sockets.
Copyright (C) 2003-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. *)
DEFINITION MODULE sckt ;
FROM SYSTEM IMPORT ADDRESS ;
EXPORT QUALIFIED tcpServerState,
tcpServerEstablish, tcpServerEstablishPort,
tcpServerAccept, getLocalIP,
tcpServerPortNo, tcpServerIP, tcpServerSocketFd,
tcpServerClientIP, tcpServerClientPortNo,
tcpClientState,
tcpClientSocket, tcpClientSocketIP, tcpClientConnect,
tcpClientPortNo, tcpClientIP, tcpClientSocketFd ;
TYPE
tcpServerState = ADDRESS ;
tcpClientState = ADDRESS ;
(*
tcpServerEstablish - returns a tcpState containing the relevant
information about a socket declared to receive
tcp connections.
*)
PROCEDURE tcpServerEstablish () : tcpServerState ;
(*
tcpServerEstablishPort - returns a tcpState containing the relevant
information about a socket declared to receive
tcp connections. This method attempts to use
the port specified by the parameter.
*)
PROCEDURE tcpServerEstablishPort (port: CARDINAL) : tcpServerState ;
(*
tcpServerAccept - returns a file descriptor once a client has connected and
been accepted.
*)
PROCEDURE tcpServerAccept (s: tcpServerState) : INTEGER ;
(*
tcpServerPortNo - returns the portNo from structure, s.
*)
PROCEDURE tcpServerPortNo (s: tcpServerState) : CARDINAL ;
(*
tcpSocketFd - returns the sockFd from structure, s.
*)
PROCEDURE tcpServerSocketFd (s: tcpServerState) : INTEGER ;
(*
getLocalIP - returns the IP address of this machine.
*)
PROCEDURE getLocalIP (s: tcpServerState) : CARDINAL ;
(*
tcpServerIP - returns the IP address from structure, s.
*)
PROCEDURE tcpServerIP (s: tcpServerState) : CARDINAL ;
(*
tcpServerClientIP - returns the IP address of the client who
has connected to server, s.
*)
PROCEDURE tcpServerClientIP (s: tcpServerState) : CARDINAL ;
(*
tcpServerClientPortNo - returns the port number of the client who
has connected to server, s.
*)
PROCEDURE tcpServerClientPortNo (s: tcpServerState) : CARDINAL ;
(*
tcpClientSocket - returns a file descriptor (socket) which has
connected to, serverName:portNo.
*)
PROCEDURE tcpClientSocket (serverName: ADDRESS; portNo: CARDINAL) : tcpClientState ;
(*
tcpClientSocketIP - returns a file descriptor (socket) which has
connected to, ip:portNo.
*)
PROCEDURE tcpClientSocketIP (ip: CARDINAL; portNo: CARDINAL) : tcpClientState ;
(*
tcpClientConnect - returns the file descriptor associated with, s,
once a connect has been performed.
*)
PROCEDURE tcpClientConnect (s: tcpClientState) : INTEGER ;
(*
tcpClientPortNo - returns the portNo from structure, s.
*)
PROCEDURE tcpClientPortNo (s: tcpClientState) : INTEGER ;
(*
tcpClientSocketFd - returns the sockFd from structure, s.
*)
PROCEDURE tcpClientSocketFd (s: tcpClientState) : INTEGER ;
(*
tcpClientIP - returns the IP address from structure, s.
*)
PROCEDURE tcpClientIP (s: tcpClientState) : CARDINAL ;
END sckt.
|
