DeviceNameResolver.cpp
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DeviceNameResolver.cpp
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	#include "DeviceNameResolver.h"

	DeviceNameResolver::DeviceNameResolver()
	{
	initDeviceNameList();
	}

	DeviceNameResolver::~DeviceNameResolver()
	{
	deviceNameList.clear();
	}

	void DeviceNameResolver::initDeviceNameList()
	{
	TCHAR shortName[3] = {0};
	TCHAR longName[MAX_PATH] = {0};
	HardDisk hardDisk;

	shortName[1] = L':';

	deviceNameList.reserve(3);

	for ( TCHAR shortD = TEXT('a'); shortD < TEXT('z'); shortD++ )
	{
	shortName[0] = shortD;
	if (QueryDosDevice( shortName, longName, MAX_PATH ) > 0)
	{
	hardDisk.shortName[0] = _totupper(shortD);
	hardDisk.shortName[1] = TEXT(':');
	hardDisk.shortName[2] = 0;

	hardDisk.longNameLength = _tcslen(longName);


	_tcscpy_s(hardDisk.longName, longName);
	deviceNameList.push_back(hardDisk);
	}
	}
	}

	bool DeviceNameResolver::resolveDeviceLongNameToShort( WCHAR * sourcePath, WCHAR * targetPath )
	{
	for (unsigned int i = 0; i < deviceNameList.size(); i++)
	{
	if (!_tcsnicmp(deviceNameList[i].longName, sourcePath, deviceNameList[i].longNameLength))
	{
	_tcscpy_s(targetPath, MAX_PATH, deviceNameList[i].shortName);
	_tcscat_s(targetPath, MAX_PATH, sourcePath + deviceNameList[i].longNameLength);
	return true;
	}
	}

	return false;
	}