1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/cryptoservices/certificateandkeymgmt/wtlscert/wtlsdec.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,144 @@
     1.4 +/*
     1.5 +* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 +#include "wtlsdec.h"
    1.23 +
    1.24 +//stolen from stdlib
    1.25 +#define WTLS_UNIX_BASE   TTime(MAKE_TINT64(0x00dcddb3,0x0f2f8000))    // 00:00, Jan 1st 1970
    1.26 +const TInt KTimeLength = 4;
    1.27 +
    1.28 +
    1.29 +TWTLSDecVector::TWTLSDecVector(const TDesC8& aSource, TInt aMinLength, TInt aMaxLength)
    1.30 +	:iEncoding(aSource), iMinLength(aMinLength), iMaxLength(aMaxLength), iLengthOfContents(0), iLengthOfLength(0)
    1.31 +	{
    1.32 +	}
    1.33 +
    1.34 +void TWTLSDecVector::InitL()
    1.35 +	{
    1.36 +	if (iMaxLength <= 255)
    1.37 +		{
    1.38 +		iLengthOfLength = 1;
    1.39 +		}
    1.40 +	else
    1.41 +		{
    1.42 +		if (iMaxLength <= 65535)
    1.43 +			{
    1.44 +			iLengthOfLength = 2;
    1.45 +			}
    1.46 +		else
    1.47 +			{
    1.48 +			if (iMaxLength <= 16777215)
    1.49 +				{
    1.50 +				iLengthOfLength = 3;
    1.51 +				}
    1.52 +			else
    1.53 +				{
    1.54 +				iLengthOfLength = 4;
    1.55 +				}
    1.56 +			}
    1.57 +		}
    1.58 +	if (iEncoding.Length() < (iLengthOfLength + iMinLength))
    1.59 +		{
    1.60 +		User::Leave(KErrArgument);
    1.61 +		}
    1.62 +	TWTLSDecUnsignedInteger decLength;
    1.63 +	TInt pos = 0;
    1.64 +	iLengthOfContents = decLength.DecodeShortL(iEncoding, pos, iLengthOfLength);
    1.65 +	if (iEncoding.Length() < (iLengthOfLength + iLengthOfContents))
    1.66 +		{
    1.67 +		User::Leave(KErrArgument);
    1.68 +		}
    1.69 +	}
    1.70 +/*
    1.71 +TPtrC8 TWTLSDecVector::Encoding() const
    1.72 +	{
    1.73 +	return iEncoding.Left(EncodingLength());
    1.74 +	}
    1.75 +*/
    1.76 +TInt TWTLSDecVector::EncodingLength() const
    1.77 +	{
    1.78 +	return iLengthOfLength + iLengthOfContents;
    1.79 +	}
    1.80 +/*	
    1.81 +TPtrC8 TWTLSDecVector::Content() const
    1.82 +	{
    1.83 +	return iEncoding.Mid(iLengthOfLength, iLengthOfContents);
    1.84 +	}
    1.85 +
    1.86 +TInt TWTLSDecVector::ContentLength() const
    1.87 +	{
    1.88 +	return iLengthOfContents;
    1.89 +	}
    1.90 +	
    1.91 +TInt TWTLSDecVector::HeaderLength() const
    1.92 +	{
    1.93 +	return iLengthOfLength;
    1.94 +	}
    1.95 +*/
    1.96 +TWTLSDecUnsignedInteger::TWTLSDecUnsignedInteger()
    1.97 +	{
    1.98 +	}
    1.99 +
   1.100 +TInt TWTLSDecUnsignedInteger::DecodeShortL(const TDesC8& aSource,TInt& aPos, TInt aLength)
   1.101 +	{
   1.102 +	if (aLength > 4)
   1.103 +		{
   1.104 +		User::Leave(KErrOverflow);
   1.105 +		}
   1.106 +	TInt sourceLength = aSource.Length();
   1.107 +	TInt res=0;
   1.108 +	while (aLength)
   1.109 +		{
   1.110 +		if (sourceLength <= aPos)
   1.111 +			{
   1.112 +			User::Leave(KErrArgument);
   1.113 +			}
   1.114 +		res<<=8;
   1.115 +		res+=aSource[aPos++];
   1.116 +		aLength--;
   1.117 +		}
   1.118 +	return res;
   1.119 +	}
   1.120 +
   1.121 +RInteger TWTLSDecUnsignedInteger::DecodeLongL(const TDesC8& aSource,TInt& aPos, TInt aLength)
   1.122 +	{
   1.123 +	if (aSource.Length() < (aPos + aLength))
   1.124 +		{
   1.125 +		User::Leave(KErrArgument);
   1.126 +		}
   1.127 +	const TPtrC8 ptr = aSource.Mid(aPos, aLength);
   1.128 +	aPos += aLength;
   1.129 +	RInteger res = RInteger::NewL(ptr);
   1.130 +	return res;
   1.131 +	}
   1.132 +
   1.133 +
   1.134 +TWTLSDecTime::TWTLSDecTime()
   1.135 +	{
   1.136 +	}
   1.137 +
   1.138 +TTime TWTLSDecTime::DecodeL(const TDesC8& aSource, TInt& aPos)
   1.139 +	{
   1.140 +	if ((aSource.Length() - aPos) < KTimeLength)
   1.141 +		{
   1.142 +		User::Leave(KErrArgument);
   1.143 +		}
   1.144 +	TWTLSDecUnsignedInteger decInt;
   1.145 +	TInt inc = decInt.DecodeShortL(aSource, aPos, 4);
   1.146 +	return WTLS_UNIX_BASE + TTimeIntervalSeconds(inc);
   1.147 +	}