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/*
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* Contains miscellaneous utility functions that can be used by any code in security component
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*
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*/
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/**
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@file
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*/
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#include "miscutil.h"
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namespace MiscUtil
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{
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/*
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* Function used to extract lines of text from a buffer. Note that this only works for non-unicode text. It skips
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* over blank lines and the characters '\n' or '\r' are treated as end-of-line markers.
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*
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* @param aBuffer Input buffer
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* @param aPos Starting index into aBuffer
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* @return ETrue if a line was successfully extracted from the buffer, EFalse if end of buffer reached
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*/
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EXPORT_C TBool ReadNonEmptyLineL(const TDesC8& aBuffer, TInt& aPos, TPtrC8& aLine)
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{
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TBool lineIdentified = ETrue;
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aLine.Set(NULL, 0);
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TInt bufferLength = aBuffer.Length();
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__ASSERT_ALWAYS(aPos >=0 && aPos <= bufferLength, User::Leave(KErrArgument));
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// Skip blank lines
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while (aPos < bufferLength)
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{
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TChar c = aBuffer[aPos];
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if (c != '\r' && c != '\n')
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{
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break;
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}
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aPos++;
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}
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// Find the position of the next delimter
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TInt endPos = aPos;
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while (endPos < bufferLength)
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{
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TChar c = aBuffer[endPos];
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if (c == '\n' || c == '\r') // Find end of line
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{
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break;
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}
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endPos++;
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}
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if (endPos != aPos)
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{
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TInt tokenLen = endPos - aPos;
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aLine.Set(&aBuffer[aPos], tokenLen);
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}
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else
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{
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lineIdentified = EFalse; // End of buffer
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}
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aPos = endPos;
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return lineIdentified;
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}
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/*
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* Recursively deletes all folders in the path (as long as they are empty)
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*
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* @param aFs Connected filesystem session
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* @param aPath Fully qualified path to start the recursive delete
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*/
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EXPORT_C void DeletePathIfEmpty(RFs& aFs, const TDesC& aPath)
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{
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TParse path;
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path.Set(aPath,NULL,NULL);
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if (path.PathPresent())
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{
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while ((aFs.RmDir(path.DriveAndPath()) == KErrNone) && (path.PopDir() == KErrNone))
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;
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}
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}
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} // namespace MiscUtil
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