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(* wrapsock.def provides access to low level client socket primitives.
Copyright (C) 2008-2023 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 wrapsock ;
(*
Title : wrapsock
Author : Gaius Mulley
System : GNU Modula-2
Date : Wed Oct 1 08:40:21 2008
Revision : $Version$
Description: provides a set of wrappers to some client side
tcp socket primatives.
*)
FROM SYSTEM IMPORT ADDRESS ;
FROM ChanConsts IMPORT OpenResults ;
TYPE
clientInfo = ADDRESS ;
(*
clientOpen - returns an ISO Modula-2 OpenResult.
It attempts to connect to: hostname:portNo.
If successful then the data structure, c,
will have its fields initialized.
*)
PROCEDURE clientOpen (c: clientInfo;
hostname: ADDRESS;
length: CARDINAL;
portNo: CARDINAL) : OpenResults ;
(*
clientOpenIP - returns an ISO Modula-2 OpenResult.
It attempts to connect to: ipaddress:portNo.
If successful then the data structure, c,
will have its fields initialized.
*)
PROCEDURE clientOpenIP (c: clientInfo;
ip: CARDINAL;
portNo: CARDINAL) : OpenResults ;
(*
getClientPortNo - returns the portNo from structure, c.
*)
PROCEDURE getClientPortNo (c: clientInfo) : CARDINAL ;
(*
getClientHostname - fills in the hostname of the server
the to which the client is connecting.
*)
PROCEDURE getClientHostname (c: clientInfo;
hostname: ADDRESS; high: CARDINAL) ;
(*
getClientSocketFd - returns the sockFd from structure, c.
*)
PROCEDURE getClientSocketFd (c: clientInfo) : INTEGER ;
(*
getClientIP - returns the sockFd from structure, s.
*)
PROCEDURE getClientIP (c: clientInfo) : CARDINAL ;
(*
getPushBackChar - returns TRUE if a pushed back character
is available.
*)
PROCEDURE getPushBackChar (c: clientInfo; VAR ch: CHAR) : BOOLEAN ;
(*
setPushBackChar - returns TRUE if it is able to push back a
character.
*)
PROCEDURE setPushBackChar (c: clientInfo; ch: CHAR) : BOOLEAN ;
(*
getSizeOfClientInfo - returns the sizeof (opaque data type).
*)
PROCEDURE getSizeOfClientInfo () : CARDINAL ;
END wrapsock.
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