--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerprotocols/ftpengine/ftpprot/PASVANS.H	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,90 @@
+/**
+* Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* PASV command answer parser
+* Author:	Philippe Gabriel
+* RFC 959 defines the syntax for answer to the PASV command
+* We must parse an IP+Port number (decimal, big endian)
+* (ip1,ip2,ip3,ip4,ip5,port1,port2)
+* We parse these regular expressions using an FSM
+* Use:
+* TFtpPASVAnswerParser::Reset 
+* to Reset the parser before we begin to parse a new answer
+* TFtpPASVAnswerParser::Parse 
+* to parse an answer
+* returns:
+* TRUE: we parsed an answer (answer might be correct or inccorect)
+* FALSE: An answer has not been completely parsed yet
+* TFtpPASVAnswerParser::Fetch 
+* Fetch an answer
+* returns:
+* TRUE: We got a valid answer
+* FALSE: The answer we got had an invalid syntax
+* 
+*
+*/
+
+
+
+/**
+ @file PASVANS.H
+ @internalComponent
+*/
+
+#if !defined(__PASVANS_H__)
+#define __PASVANS_H__
+#include <e32base.h>
+#include <in_sock.h>
+
+//////////////////////////////////////////////////////////////
+// Definitions
+//////////////////////////////////////////////////////////////
+
+class TFtpPASVAnswerParser 
+/**
+@internalComponent
+*/
+{
+
+public:
+	enum TState
+		{
+		/** Do some clever encoding here 
+		*/
+		EIdle=0,	
+		/** to simplify parsing code
+		*/
+		EBeginParse=1,	
+		EParsing=2,
+		ESuccess,EFailed
+		};
+
+			TFtpPASVAnswerParser(void){iState=EIdle;}
+	TBool	Parse(const TDesC8&, const TInetAddr& aAddr);
+	TBool	Fetch(TInetAddr& aFTPServerAddress);
+	void	Reset(void);
+private:
+	/** Helper to Parse() */
+	TBool ParsePASV(const TDesC8&); 
+	/** Helper to Parse() */
+	TBool ParseEPSV(const TDesC8&); 
+	/** The current state of the parser */
+	TUint		iState;	
+	/** The parsed answer digits */
+	TBuf<12>	iDigit; 
+	TInetAddr   iFTPServerAddress;
+	TInt		iNumberCounter;
+};
+
+#endif // __PASVANS_H__