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/*
* TlsDirectory.h - Part of the PeLib library.
*
* Copyright (c) 2004 - 2005 Sebastian Porst (webmaster@the-interweb.com)
* All rights reserved.
*
* This software is licensed under the zlib/libpng License.
* For more details see http://www.opensource.org/licenses/zlib-license.php
* or the license information file (license.htm) in the root directory
* of PeLib.
*/
#ifndef TLSDIRECTORY_H
#define TLSDIRECTORY_H
namespace PeLib
{
/// Class that handles the TLS directory.
/**
* This class handles the TLS (Thread Local Storage) directory.
**/
template<int bits>
class TlsDirectory
{
private:
PELIB_IMAGE_TLS_DIRECTORY<bits> m_tls; ///< Structure that holds all information about the directory.
void read(InputBuffer& inputbuffer);
public:
/// Reads a file's TLS directory.
int read(const std::string& strFilename, unsigned int uiOffset, unsigned int uiSize); // EXPORT
int read(unsigned char* buffer, unsigned int buffersize); // EXPORT
/// Rebuilds the TLS directory.
void rebuild(std::vector<byte>& vBuffer) const; // EXPORT
/// Returns the size of the TLS Directory.
unsigned int size() const; // EXPORT
/// Writes the TLS directory to a file.
int write(const std::string& strFilename, unsigned int dwOffset) const; // EXPORT
/// Returns the StartAddressOfRawData value of the TLS header.
dword getStartAddressOfRawData() const; // EXPORT
/// Returns the EndAddressOfRawData value of the TLS header.
dword getEndAddressOfRawData() const; // EXPORT
/// Returns the AddressOfIndex value of the TLS header.
dword getAddressOfIndex() const; // EXPORT
/// Returns the AddressOfCallBacks value of the TLS header.
dword getAddressOfCallBacks() const; // EXPORT
/// Returns the SizeOfZeroFill value of the TLS header.
dword getSizeOfZeroFill() const; // EXPORT
/// Returns the Characteristics value of the TLS header.
dword getCharacteristics() const; // EXPORT
/// Sets the StartAddressOfRawData value of the TLS header.
void setStartAddressOfRawData(dword dwValue); // EXPORT
/// Sets the EndAddressOfRawData value of the TLS header.
void setEndAddressOfRawData(dword dwValue); // EXPORT
/// Sets the AddressOfIndex value of the TLS header.
void setAddressOfIndex(dword dwValue); // EXPORT
/// Sets the AddressOfCallBacks value of the TLS header.
void setAddressOfCallBacks(dword dwValue); // EXPORT
/// Sets the SizeOfZeroFill value of the TLS header.
void setSizeOfZeroFill(dword dwValue); // EXPORT
/// Sets the Characteristics value of the TLS header.
void setCharacteristics(dword dwValue); // EXPORT
};
template<int bits>
void TlsDirectory<bits>::read(InputBuffer& inputBuffer)
{
PELIB_IMAGE_TLS_DIRECTORY<bits> itdCurr;
inputBuffer >> itdCurr.StartAddressOfRawData;
inputBuffer >> itdCurr.EndAddressOfRawData;
inputBuffer >> itdCurr.AddressOfIndex;
inputBuffer >> itdCurr.AddressOfCallBacks;
inputBuffer >> itdCurr.SizeOfZeroFill;
inputBuffer >> itdCurr.Characteristics;
std::swap(itdCurr, m_tls);
}
template<int bits>
int TlsDirectory<bits>::read(unsigned char* buffer, unsigned int buffersize)
{
if (buffersize < PELIB_IMAGE_TLS_DIRECTORY<bits>::size())
{
return ERROR_INVALID_FILE;
}
std::vector<byte> vTlsDirectory(buffer, buffer + buffersize);
InputBuffer ibBuffer(vTlsDirectory);
read(ibBuffer);
return NO_ERROR;
}
/**
* Reads a file's TLS directory.
* @param strFilename Name of the file.
* @param uiOffset File offset of the TLS directory.
* @param uiSize Size of the TLS directory.
**/
template<int bits>
int TlsDirectory<bits>::read(const std::string& strFilename, unsigned int uiOffset, unsigned int uiSize)
{
std::ifstream ifFile(strFilename.c_str(), std::ios::binary);
unsigned int ulFileSize = fileSize(ifFile);
if (!ifFile)
{
return ERROR_OPENING_FILE;
}
if (ulFileSize < uiOffset + uiSize)
{
return ERROR_INVALID_FILE;
}
ifFile.seekg(uiOffset, std::ios::beg);
std::vector<byte> vTlsDirectory(uiSize);
ifFile.read(reinterpret_cast<char*>(&vTlsDirectory[0]), uiSize);
InputBuffer ibBuffer(vTlsDirectory);
read(ibBuffer);
return NO_ERROR;
}
/**
* Rebuilds the current TLS Directory.
* @param vBuffer Buffer where the TLS directory will be written to.
**/
template<int bits>
void TlsDirectory<bits>::rebuild(std::vector<byte>& vBuffer) const
{
OutputBuffer obBuffer(vBuffer);
obBuffer << m_tls.StartAddressOfRawData;
obBuffer << m_tls.EndAddressOfRawData;
obBuffer << m_tls.AddressOfIndex;
obBuffer << m_tls.AddressOfCallBacks;
obBuffer << m_tls.SizeOfZeroFill;
obBuffer << m_tls.Characteristics;
}
/**
* Returns the size of the TLS directory. Due to the static nature of this structure the return value
* will always be 24.
* @return Size in bytes.
**/
template<int bits>
unsigned int TlsDirectory<bits>::size() const
{
return PELIB_IMAGE_TLS_DIRECTORY<bits>::size();
}
/**
* @param strFilename Name of the file.
* @param dwOffset File offset the TLS Directory will be written to.
**/
template<int bits>
int TlsDirectory<bits>::write(const std::string& strFilename, unsigned int dwOffset) const
{
std::fstream ofFile(strFilename.c_str(), std::ios_base::in);
if (!ofFile)
{
ofFile.clear();
ofFile.open(strFilename.c_str(), std::ios_base::out | std::ios_base::binary);
}
else
{
ofFile.close();
ofFile.open(strFilename.c_str(), std::ios_base::in | std::ios_base::out | std::ios_base::binary);
}
if (!ofFile)
{
return ERROR_OPENING_FILE;
}
ofFile.seekp(dwOffset, std::ios::beg);
std::vector<unsigned char> vBuffer;
rebuild(vBuffer);
ofFile.write(reinterpret_cast<const char*>(&vBuffer[0]), vBuffer.size());
ofFile.close();
return NO_ERROR;
}
/**
* @return The StartAddressOfRawData value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getStartAddressOfRawData() const
{
return m_tls.StartAddressOfRawData;
}
/**
* @return The EndAddressOfRawData value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getEndAddressOfRawData() const
{
return m_tls.EndAddressOfRawData;
}
/**
* @return The AddressOfIndex value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getAddressOfIndex() const
{
return m_tls.AddressOfIndex;
}
/**
* @return The AddressOfCallBacks value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getAddressOfCallBacks() const
{
return m_tls.AddressOfCallBacks;
}
/**
* @return The SizeOfZeroFill value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getSizeOfZeroFill() const
{
return m_tls.SizeOfZeroFill;
}
/**
* @return The Characteristics value of the TLS directory.
**/
template<int bits>
dword TlsDirectory<bits>::getCharacteristics() const
{
return m_tls.Characteristics;
}
/**
* @param dwValue The new StartAddressOfRawData value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setStartAddressOfRawData(dword dwValue)
{
m_tls.StartAddressOfRawData = dwValue;
}
/**
* @param dwValue The new EndAddressOfRawData value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setEndAddressOfRawData(dword dwValue)
{
m_tls.EndAddressOfRawData = dwValue;
}
/**
* @param dwValue The new AddressOfIndex value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setAddressOfIndex(dword dwValue)
{
m_tls.AddressOfIndex = dwValue;
}
/**
* @param dwValue The new AddressOfCallBacks value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setAddressOfCallBacks(dword dwValue)
{
m_tls.AddressOfCallBacks = dwValue;
}
/**
* @param dwValue The new SizeOfZeroFill value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setSizeOfZeroFill(dword dwValue)
{
m_tls.SizeOfZeroFill = dwValue;
}
/**
* @param dwValue The new Characteristics value of the TLS directory.
**/
template<int bits>
void TlsDirectory<bits>::setCharacteristics(dword dwValue)
{
m_tls.Characteristics = dwValue;
}
}
#endif
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