#include "StdAfx.h"
#include ".\changeip.h"
#include <string>

ChangeIP::ChangeIP(void)
{
}

ChangeIP::~ChangeIP(void)
{
}

BOOL	ChangeIP::GetIPValue( const TCHAR* pszIP, DWORD& dwKey )							  
{
	if( !pszIP )		return FALSE;

	int nCnt = 0;
	BYTE byIP[4];
	std::string strIP = pszIP;
	while( nCnt < 4 )
	{
		int nIdx = (int)strIP.find( '.' );
		if( nIdx == std::string::npos )
		{
			if( strIP.size() > 0 )
				byIP[nCnt] = atoi( strIP.c_str() );					

			break;
		}

		std::string strTemp = strIP.substr( 0, nIdx );
		byIP[nCnt] = atoi( strTemp.c_str() );
		strIP.erase( 0, strTemp.size() + 1 );
		nCnt++;
	}	

	dwKey = ( (DWORD)byIP[0] << 24 | (DWORD)byIP[1] << 16 | (DWORD)byIP[2] << 8 | (DWORD)byIP[3] );

	return TRUE;
}


BOOL	ChangeIP::GetStrIP( DWORD dwIPKey, TCHAR* pszIP, int nBufSize )
{
	if( !pszIP )		return FALSE;

	BYTE byIP[4];
	byIP[0] = (BYTE)(dwIPKey >> 24);
	byIP[1] = (BYTE)(dwIPKey >> 16);
	byIP[2] = (BYTE)(dwIPKey >> 8);
	byIP[3] = (BYTE)(dwIPKey);

	_snprintf( pszIP, nBufSize, "%d.%d.%d.%d", byIP[0], byIP[1], byIP[2], byIP[3]);

	return TRUE;
}