cryptoservices/certificateandkeymgmt/asn1/genericdec.cpp
changeset 8 35751d3474b7
parent 0 2c201484c85f
--- a/cryptoservices/certificateandkeymgmt/asn1/genericdec.cpp	Tue Jul 21 01:04:32 2009 +0100
+++ b/cryptoservices/certificateandkeymgmt/asn1/genericdec.cpp	Thu Sep 10 14:01:51 2009 +0300
@@ -1,147 +1,148 @@
-/*
-* 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 the License "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: 
-*
-*/
-
-
-#include "asn1dec.h"
-
-EXPORT_C TASN1DecGeneric::TASN1DecGeneric(const TDesC8& aSource):
- iEncoding(aSource)
-	{
-	}
-
-EXPORT_C void TASN1DecGeneric::InitL()
-
-// x209 6.2, 6.3
-	{
-	if(iEncoding.Length() < KASN1ObjectMinLength)
-		{
-		User::Leave(KErrArgument);
-		}	
-	
-	TInt i=iEncoding[0];
-	TInt b=i>>6;
-	iClass=(TASN1Class)b;
-
-	TInt Length=0;
-	TInt LengthOfLength=1;
-	TInt Pos=0;
-	TInt T=0;
-	TInt encodingLength = iEncoding.Length();
-	// work out tag 
-	if ((iEncoding[Pos]&0x1f)==0x1f)
-		{
-		// tag greater than 30
-		Pos++;
-		if (encodingLength <= Pos+1)
-			{
-			User::Leave(KErrArgument);
-			}
-		while (iEncoding[Pos]>=128)
-			{
-			T<<=7;
-			T+=(TUint8)(iEncoding[Pos]&127);		// this raises warning if TTagType is TUint8
-			Pos++;
-			if (encodingLength <= Pos+1)
-				{
-				User::Leave(KErrArgument);
-				}
-			}
-		T<<=7;
-		T+=(TUint8)iEncoding[Pos];
-		}
-	else
-		{
-		T=(TUint8)(iEncoding[Pos]&0x1f);
-		}
-	iExplicitTag = T;
-	Pos++;
-
-	TUint8 l = iEncoding[Pos];
-	if (l > 128)
-		{
-		// this is a length of length
-		if (encodingLength <= Pos+1)
-			{
-			User::Leave(KErrArgument);
-			}
-		LengthOfLength=iEncoding[Pos++]&127;
-		Length=0;
-		while (LengthOfLength)
-			{
-			if (encodingLength <= Pos+1)
-				{
-				User::Leave(KErrArgument);
-				}
-			Length<<=8;
-			Length+=iEncoding[Pos++];
-			LengthOfLength--;
-			}
-		}
-	if (l == 128)
-		{
-		//this is constructed, indefinite length: we don't support this
-		User::Leave(KErrNotSupported);
-		}
-	if (l < 128)
-		{
-		//this is a straight length
-		Length = iEncoding[Pos++];
-		}
-	if (((Length+Pos)>encodingLength) || (Length < 0))
-		{
-		User::Leave(KErrArgument);
-		}
-	iStartOfContents = Pos;
-	iLength = Length;
-	}
-
-EXPORT_C TPtrC8 TASN1DecGeneric::GetContentDER(void) const
-	{
-	return iEncoding.Mid(iStartOfContents, iLength);
-	}
-
-EXPORT_C TInt TASN1DecGeneric::LengthDER(void) const
-	{
-	return iLength+iStartOfContents;
-	}
-
-EXPORT_C TInt TASN1DecGeneric::LengthDERContent(void) const
-	{
-	return iLength;
-	}
-
-EXPORT_C TInt TASN1DecGeneric::LengthDERHeader() const
-	{
-	return LengthDER() - LengthDERContent();
-	}
-
-EXPORT_C TPtrC8 TASN1DecGeneric::Encoding() const
-	{
-	return iEncoding.Left(LengthDER());
-	}
-
-EXPORT_C TTagType TASN1DecGeneric::Tag() const
-// we can inline this
-	{
-	return iExplicitTag;
-	}
-
-EXPORT_C TASN1Class TASN1DecGeneric::Class() const
-// we can inline this
-	{
-	return iClass;
-	}
+/*
+* 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 the License "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: 
+*
+*/
+
+
+#include "asn1dec.h"
+
+EXPORT_C TASN1DecGeneric::TASN1DecGeneric(const TDesC8& aSource):
+ iEncoding(aSource)
+	{
+	}
+
+EXPORT_C void TASN1DecGeneric::InitL()
+
+// x209 6.2, 6.3
+	{
+	if(iEncoding.Length() < KASN1ObjectMinLength)
+		{
+		User::Leave(KErrArgument);
+		}	
+	
+	TInt i=iEncoding[0];
+	TInt b=i>>6;
+	iClass=(TASN1Class)b;
+
+	TInt Length=0;
+	TInt LengthOfLength=1;
+	TInt Pos=0;
+	TInt T=0;
+	TInt encodingLength = iEncoding.Length();
+	// work out tag 
+	if ((iEncoding[Pos]&0x1f)==0x1f)
+		{
+		// tag greater than 30
+		Pos++;
+		if (encodingLength <= Pos+1)
+			{
+			User::Leave(KErrArgument);
+			}
+		while (iEncoding[Pos]>=128)
+			{
+			T<<=7;
+			T+=(TUint8)(iEncoding[Pos]&127);		// this raises warning if TTagType is TUint8
+			Pos++;
+			if (encodingLength <= Pos+1)
+				{
+				User::Leave(KErrArgument);
+				}
+			}
+		T<<=7;
+		T+=(TUint8)iEncoding[Pos];
+		}
+	else
+		{
+		T=(TUint8)(iEncoding[Pos]&0x1f);
+		}
+	iExplicitTag = T;
+	Pos++;
+
+	TUint8 l = iEncoding[Pos];
+	if (l > 128)
+		{
+		// this is a length of length
+		if (encodingLength <= Pos+1)
+			{
+			User::Leave(KErrArgument);
+			}
+		LengthOfLength=iEncoding[Pos++]&127;
+		Length=0;
+		while (LengthOfLength)
+			{
+			if (encodingLength <= Pos+1)
+				{
+				User::Leave(KErrArgument);
+				}
+			Length<<=8;
+			Length+=iEncoding[Pos++];
+			LengthOfLength--;
+			}
+		}
+	if (l == 128)
+		{
+		//this is constructed, indefinite length: we don't support this
+		User::Leave(KErrNotSupported);
+		}
+	if (l < 128)
+		{
+		//this is a straight length
+		Length = iEncoding[Pos++];
+		}
+	if (((Length+Pos)>encodingLength) || (Length < 0))
+		{
+		User::Leave(KErrArgument);
+		}
+	iStartOfContents = Pos;
+	iLength = Length;
+	}
+
+EXPORT_C TPtrC8 TASN1DecGeneric::GetContentDER(void) const
+	{
+	return iEncoding.Mid(iStartOfContents, iLength);
+	}
+
+EXPORT_C TInt TASN1DecGeneric::LengthDER(void) const
+	{
+	return iLength+iStartOfContents;
+	}
+
+EXPORT_C TInt TASN1DecGeneric::LengthDERContent(void) const
+	{
+	return iLength;
+	}
+
+EXPORT_C TInt TASN1DecGeneric::LengthDERHeader() const
+	{
+	return LengthDER() - LengthDERContent();
+	}
+
+EXPORT_C TPtrC8 TASN1DecGeneric::Encoding() const
+	{
+	return iEncoding.Left(LengthDER());
+	}
+
+EXPORT_C TTagType TASN1DecGeneric::Tag() const
+// we can inline this
+	{
+	return iExplicitTag;
+	}
+
+EXPORT_C TASN1Class TASN1DecGeneric::Class() const
+// we can inline this
+	{
+	return iClass;
+	}
+