sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "eustd.h"
sl@0: #include <ezcompressor.h>
sl@0: #include <ezdecompressor.h>
sl@0: #include <ezlib.h>
sl@0: #include <ezgzip.h>
sl@0: 
sl@0: #include <f32file.h>
sl@0: 
sl@0: void ReadAndPrintHeaderL(RFs &rfs, const TDesC &fname);
sl@0: 
sl@0: /**
sl@0: @SYMTestCaseID          SYSLIB-EZLIB-CT-0829
sl@0: @SYMTestCaseDesc	    Gzip functionality test
sl@0: @SYMTestPriority 	    High
sl@0: @SYMTestActions  	    Decompress and compress a zip file read from the command line. 
sl@0: @SYMTestExpectedResults Test must not fail
sl@0: @SYMREQ                 REQ0000
sl@0: */
sl@0: 
sl@0: LOCAL_C void doExampleL()
sl@0: 	{
sl@0: 	RFs rfs;
sl@0: 	rfs.Connect();
sl@0: 	TBool compress = ETrue;
sl@0: 	TInt bufferSize = 0x8000;
sl@0: 	TBool readHeader = EFalse;
sl@0: 	TBool readTrailer = EFalse;
sl@0: 	TBool noWork = EFalse;
sl@0: 
sl@0:     TInt cmdLineLen = User::CommandLineLength();
sl@0: 
sl@0: 	if (cmdLineLen <= 0)
sl@0: 		{
sl@0: 		_LIT(KUsage,"Usage:gzip [-dht] [-u bufferSize] filename\n");
sl@0: 		console->Printf(KUsage);
sl@0: 		User::Leave(1);
sl@0: 		}
sl@0:     //(cmdLineLen > 0) case
sl@0: 	HBufC *argv = HBufC::NewLC(cmdLineLen);
sl@0: 	TPtr cmd(argv->Des());
sl@0:     User::CommandLine(cmd);
sl@0: 
sl@0: 	TLex arguments(*argv);
sl@0: 	
sl@0: 	TPtrC options(arguments.NextToken());
sl@0: 	TBool expectBufferSize = EFalse;
sl@0: 	_LIT(KBadBufferSize,"Bad buffersize specified\n");
sl@0: 	_LIT(KUnknownOption,"Unknown Options %S\n");
sl@0: 
sl@0: 	
sl@0: 	while (options[0]=='-' || expectBufferSize)
sl@0: 		{
sl@0: 		TInt i = 1;
sl@0: 
sl@0: 		if (expectBufferSize)
sl@0: 			{
sl@0: 			expectBufferSize = EFalse;
sl@0: 			if (options.Length() == 0)
sl@0: 				{
sl@0: 				console->Printf(KBadBufferSize);
sl@0: 				User::Leave(1);
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				TLex bufLex(options);
sl@0: 				if (bufLex.Val(bufferSize) != KErrNone)
sl@0: 					{
sl@0: 					console->Printf(KBadBufferSize);
sl@0: 					User::Leave(1);
sl@0: 					}
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: 			{	
sl@0: 			
sl@0: 			while (i < options.Length())
sl@0: 				{
sl@0: 				if (options[i] == 'd')
sl@0: 					compress = EFalse;
sl@0: 				else if (options[i] == 'b')
sl@0: 					{
sl@0: 					if (i + 1 < options.Length())
sl@0: 						{
sl@0: 						TLex bufLex(options.Right(options.Length() - (i + 1)));
sl@0: 						if (bufLex.Val(bufferSize) != KErrNone)
sl@0: 							{
sl@0: 							console->Printf(KBadBufferSize);
sl@0: 							User::Leave(1);
sl@0: 							}
sl@0: 						}	
sl@0: 					else
sl@0: 						expectBufferSize = ETrue;
sl@0: 					}
sl@0: 				else if (options[i] == 'h')
sl@0: 					readHeader = noWork = ETrue;
sl@0: 				else if (options[i] == 't')
sl@0: 					readTrailer = noWork = ETrue;
sl@0: 				else 
sl@0: 					{
sl@0: 					console->Printf(KUnknownOption,&options);
sl@0: 					i = options.Length();
sl@0: 					}
sl@0: 				i++;
sl@0: 				}
sl@0: 			
sl@0: 			if (i == 1)
sl@0: 				{
sl@0: 				_LIT(KNoOption,"No option specified\n");
sl@0: 				console->Printf(KNoOption);
sl@0: 				User::Leave(1);
sl@0: 				}
sl@0: 			}
sl@0: 		options.Set(arguments.NextToken());
sl@0: 		}
sl@0: 
sl@0: 	console->Printf(_L("Buffer Size %d\n"),bufferSize);
sl@0: 
sl@0: 	if (readHeader)
sl@0: 		{
sl@0: 		ReadAndPrintHeaderL(rfs,options);
sl@0: 		}
sl@0: 
sl@0: 	if (readTrailer)
sl@0: 		{
sl@0: 		TEZGZipTrailer trailer;
sl@0: 		EZGZipFile::LocateAndReadTrailerL(rfs, options, trailer);
sl@0: 		_LIT(KTrailer,"Crc = %d Size = %d\n");
sl@0: 		console->Printf(KTrailer,trailer.iCrc32,trailer.iSize);
sl@0: 		}
sl@0: 
sl@0: 	if (!noWork)
sl@0: 		{
sl@0: 		if (!compress)
sl@0: 			{
sl@0: 			
sl@0: 			TPtrC inputFile(options);
sl@0: 			
sl@0: 			HBufC *uncompressedFile = HBufC::NewLC(inputFile.Length()+1);
sl@0: 			_LIT(KUfl,"%S1");
sl@0: 			uncompressedFile->Des().Format(KUfl,&inputFile);
sl@0: 			
sl@0: 			RFile output;
sl@0: 			TInt err;
sl@0: 			
sl@0: 			_LIT(KInfo,"Decompressing file %S\n");
sl@0: 			console->Printf(KInfo,&inputFile);
sl@0: 			
sl@0: 			err = output.Create(rfs, *uncompressedFile,EFileStream | EFileWrite | EFileShareExclusive);
sl@0: 			if (err == KErrAlreadyExists)
sl@0: 				User::LeaveIfError(output.Open(rfs, *uncompressedFile,EFileStream | EFileWrite | EFileShareExclusive));
sl@0: 			else 
sl@0: 				User::LeaveIfError(err);
sl@0: 			CleanupClosePushL(output);
sl@0: 			
sl@0: 			CEZGZipToFile *def = CEZGZipToFile::NewLC(rfs,inputFile,output,bufferSize);
sl@0: 			while (def->InflateL()){/*do nothing*/}
sl@0: 			
sl@0: 			_LIT(KHoorah,"Hoorah");
sl@0: 			console->Printf(KHoorah);
sl@0: 			
sl@0: 			CleanupStack::PopAndDestroy(3);
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			TPtrC inputFile(options);
sl@0: 			
sl@0: 			HBufC *compressedFile = HBufC::NewLC(inputFile.Length()+3);
sl@0: 			_LIT(KUfl,"%S.gz");
sl@0: 			compressedFile->Des().Format(KUfl,&inputFile);
sl@0: 			
sl@0: 			RFile input;
sl@0: 			
sl@0: 			_LIT(KInfo,"Compressing file %S to %S\n");
sl@0: 			console->Printf(KInfo,&inputFile,compressedFile);
sl@0: 			
sl@0: 			User::LeaveIfError(input.Open(rfs,inputFile,EFileStream | EFileRead | EFileShareAny));
sl@0: 			CleanupClosePushL(input);
sl@0: 
sl@0: 			CEZFileToGZip *com = CEZFileToGZip::NewLC(rfs,*compressedFile,input,bufferSize);
sl@0: 			while (com->DeflateL()){/*do nothing*/}
sl@0: 			
sl@0: 			_LIT(KHoorah,"Hoorah");
sl@0: 			console->Printf(KHoorah);
sl@0: 					
sl@0: 			CleanupStack::PopAndDestroy(3);
sl@0: 			}
sl@0: 		}
sl@0: 	CleanupStack::PopAndDestroy(1);
sl@0: 	rfs.Close();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void ReadAndPrintHeaderL(RFs &rfs, const TDesC &fname)
sl@0: 	{
sl@0: 	TEZGZipHeader header;
sl@0: 	
sl@0: 	if (!EZGZipFile::IsGzipFileL(rfs,fname))
sl@0: 		{
sl@0: 		_LIT(KNotGzipFile,"%S is not a gzip file\n");
sl@0: 		console->Printf(KNotGzipFile,&fname);
sl@0: 		User::Leave(1);
sl@0: 		}
sl@0: 	RFile gzipFile;
sl@0: 	User::LeaveIfError(gzipFile.Open(rfs,fname,EFileStream | EFileRead | EFileShareAny));
sl@0: 	EZGZipFile::ReadHeaderL(gzipFile,header);
sl@0: 	
sl@0: 	_LIT(KFileIds,"ID1 = %d ID2 = %d\n");
sl@0: 	console->Printf(KFileIds,header.iId1,header.iId2);
sl@0: 	_LIT(KCompressionMethod,"Compression Method = %d\n");
sl@0: 	console->Printf(KCompressionMethod,header.iCompressionMethod);
sl@0: 	_LIT(KFlags,"Flags = %d\n");
sl@0: 	console->Printf(KFlags,header.iFlags);
sl@0: 	_LIT(KTime,"Time Stamp = %d\n");
sl@0: 	console->Printf(KTime,header.iTime);
sl@0: 	_LIT(KExtraFlags,"Extra Flags %d\n");
sl@0: 	console->Printf(KExtraFlags,header.iExtraFlags);
sl@0: 	_LIT(KOS,"OS %d\n");
sl@0: 	console->Printf(KOS,header.iOs);
sl@0: 	if (header.iFlags & 4)
sl@0: 		{
sl@0: 		_LIT(KExtraLen,"Extra Length %d\n");
sl@0: 		console->Printf(KExtraLen,header.iXlen);
sl@0: 		HBufC *buf = HBufC::NewMaxLC(header.iExtra->Length());
sl@0: 		buf->Des().Copy(*header.iExtra);
sl@0: 		console->Printf(*buf);
sl@0: 		CleanupStack::PopAndDestroy();
sl@0: 		}
sl@0: 	
sl@0: 	if (header.iFlags & 8)
sl@0: 		{
sl@0: 		_LIT(KName,"Name: %S\n");
sl@0: 		HBufC *buf = HBufC::NewMaxLC(header.iFname->Length());
sl@0: 		buf->Des().Copy(*header.iFname);
sl@0: 		console->Printf(KName,buf);
sl@0: 		CleanupStack::PopAndDestroy();
sl@0: 		}
sl@0: 	
sl@0: 	if (header.iFlags & 16)
sl@0: 		{
sl@0: 		_LIT(KComment,"Comment: %S\n");
sl@0: 		HBufC *buf = HBufC::NewMaxLC(header.iComment->Length());
sl@0: 		buf->Des().Copy(*header.iComment);
sl@0: 		console->Printf(KComment,buf);
sl@0: 		CleanupStack::PopAndDestroy();
sl@0: 		}
sl@0: 	
sl@0: 	if (header.iFlags & 2)
sl@0: 		{
sl@0: 		_LIT(KCrc,"Crc16 = %d\n");
sl@0: 		console->Printf(KCrc,header.iCrc);
sl@0: 		}
sl@0: 	}