e32tools/e32lib/setcap/setcap.cpp
author Alex Gilkes <alex.gilkes@nokia.com>
Tue, 27 Oct 2009 16:36:35 +0000
changeset 0 044383f39525
permissions -rw-r--r--
Convert Build package from SFL to EPL
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// Copyright (c) 1998-2009 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 "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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// e32utils\setcap\setcap.cpp
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// 
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//
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#include "setcap.h"
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#include <e32std.h>
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GLDEF_D TBool CapabilitySet;
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GLDEF_D SCapabilitySet Capability;
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GLDEF_D TBool SecureIdSet;
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GLDEF_D TSecureId SecureId;
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GLDEF_D TBool VendorIdSet;
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GLDEF_D TVendorId VendorId;
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#ifdef __TOOLS__
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#define		Mem		HMem
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#include "h_utl.h"
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#endif //__TOOLS__
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#if !defined(__EPOC32__) && !defined(__LINUX__)
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GLDEF_C TInt SetCap(HANDLE hFile)
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	{
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	DWORD ret;
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	TText8 checkedUidBuf[sizeof(TCheckedUid)];
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	ReadFile(hFile,checkedUidBuf,sizeof(TCheckedUid),&ret,NULL);
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	if (ret!=sizeof(TCheckedUid))
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		goto close;
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	//Look at PE file for UID section
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	{
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	const TInt KPeHeaderAddrAddr=0x3c;
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	const TInt KPeHeaderAddrSize=0x01;
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	const TInt KNumberOfSectionsOffset=0x06;
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	const TInt KNumberOfSectionsSize=0x02;
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	const TInt KSectionTableOffset=0xf8;
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	const TInt KSectionHeaderSize=0x28;
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	const TInt KSectionNameLength=0x08;
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	const TInt KPtrToRawDataOffset=0x14;
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	const TInt KPtrToRawDataSize=0x04;
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	const TText8 peText[4]={'P','E',0,0};
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	const TText8 uidText[8]={'.','S','Y','M','B','I','A','N'};
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	//Read address of start of PE header
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	if (SetFilePointer(hFile,KPeHeaderAddrAddr,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	TInt peAddr=0;
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	ReadFile(hFile,&peAddr,KPeHeaderAddrSize,&ret,NULL);
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	if (ret!=KPeHeaderAddrSize)
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		goto close;
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	//Check it really is the start of PE header
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	if (SetFilePointer(hFile,peAddr,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	TText8 text[4];
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	ReadFile(hFile,text,4,&ret,NULL);
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	if (*(TInt32*)text!=*(TInt32*)peText)
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		goto close;
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	//Read number of sections
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	if (SetFilePointer(hFile,peAddr+KNumberOfSectionsOffset,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	TInt sections=0;
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	ReadFile(hFile,&sections,KNumberOfSectionsSize,&ret,NULL);
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	if (ret!=KNumberOfSectionsSize)
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		goto close;
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	//Go through section headers looking for UID section
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	if (SetFilePointer(hFile,peAddr+KSectionTableOffset,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	TInt i=0;
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	for(;i<sections;i++)
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		{
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		TText8 name[KSectionNameLength];
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		ReadFile(hFile,name,KSectionNameLength,&ret,NULL);
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		if (ret!=KSectionNameLength)
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			goto close;
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		if (*(TInt64*)name==*(TInt64*)uidText)
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			break;
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		if (SetFilePointer(hFile,KSectionHeaderSize-KSectionNameLength,0,FILE_CURRENT)==0xFFFFFFFF)
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			goto close;
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		}
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	if (i==sections)
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		goto close;
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	//Read RVA/Offset
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	if (SetFilePointer(hFile,KPtrToRawDataOffset-KSectionNameLength,0,FILE_CURRENT)==0xFFFFFFFF)
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		goto close;
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	TInt uidOffset;
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	ReadFile(hFile,&uidOffset,KPtrToRawDataSize,&ret,NULL);
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	if (ret!=KPtrToRawDataSize)
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		goto close;
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	//SYMBIAN Header
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	if (SetFilePointer(hFile,uidOffset,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	TEmulatorImageHeader header;
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	ReadFile(hFile,&header,sizeof(header),&ret,NULL);
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	if (ret!=sizeof(header))
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		goto close;
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	// set new capabilities
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	if (CapabilitySet)
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		{
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		header.iS.iCaps = Capability;
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		}
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	// set new secure id and vendor id if specified
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	if (SecureIdSet)
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		{
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		header.iS.iSecureId = SecureId.iId;
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		}
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	if (VendorIdSet)
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		{
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		header.iS.iVendorId = VendorId.iId;
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		}
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	// save header values
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	Capability = header.iS.iCaps;
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	SecureId.iId = header.iS.iSecureId;
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	VendorId.iId = header.iS.iVendorId;
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	if (SetFilePointer(hFile,uidOffset,0,FILE_BEGIN)==0xFFFFFFFF)
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		goto close;
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	BOOL b = WriteFile(hFile,&header,sizeof(header),&ret,NULL);
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	if (b==FALSE)
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		goto close;
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	CloseHandle(hFile);
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	return KErrNone;
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	}
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close:
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	CloseHandle(hFile);
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	return KErrGeneral;
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	}
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#endif //__EPOC32__
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#ifndef __WINS__
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GLDEF_C TInt SetCap(E32ImageHeader* h)
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	{
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	TUint hdrfmt = h->HeaderFormat();
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	if (hdrfmt < KImageHdrFmt_V)
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		return KErrNotSupported;
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	E32ImageHeaderV* v = (E32ImageHeaderV*)h;
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	if (CapabilitySet)
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		v->iS.iCaps = Capability;
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	if (SecureIdSet)
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		v->iS.iSecureId = SecureId.iId;
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	if (VendorIdSet)
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		v->iS.iVendorId = VendorId.iId;	
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	// save header values
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	Capability = v->iS.iCaps;
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	SecureId.iId = v->iS.iSecureId;
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	VendorId.iId = v->iS.iVendorId;
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	// regenerate CRC
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	v->iHeaderCrc = KImageCrcInitialiser;
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	TUint32 crc = 0;
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	Mem::Crc32(crc, v, v->TotalSize());
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	v->iHeaderCrc = crc;
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	return KErrNone;
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	}
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#endif //__WINS__