msystem.cpp

一个通讯管理机的源代码。比较好用。推荐

#include "msystem.h"

WORD CWFromBuf(BYTE*& pbyTemp)
{
	WORD byL = *pbyTemp++;
	WORD byH = *pbyTemp++;
	return (byH<<8) + byL;
}
DWORD CDWFromBuf(BYTE*& pbyTemp)
{
	DWORD byLL = *pbyTemp++;
	DWORD byL = *pbyTemp++;
	DWORD byH = *pbyTemp++;
	DWORD byHH = *pbyTemp++;
	return (byHH<<24) + (byH<<16) + (byL<<8) + byLL;
}


WORD CW(BYTE*& pbyTemp)
{
	WORD byH = *pbyTemp++;
	WORD byL = *pbyTemp++;
	return (byH<<8) + byL;
}
DWORD CDW(BYTE*& pbyTemp)
{
	DWORD byHH = *pbyTemp++;
	DWORD byH = *pbyTemp++;
	DWORD byL = *pbyTemp++;
	DWORD byLL = *pbyTemp++;
	return (byHH<<24) + (byH<<16) + (byL<<8) + byLL;
}
DWORD CHDW(BYTE*& pbyTemp)
{
	DWORD byL = *pbyTemp++;
	DWORD byLL = *pbyTemp++;
	DWORD byHH = *pbyTemp++;
	DWORD byH = *pbyTemp++;
	return (byHH<<24) + (byH<<16) + (byL<<8) + byLL;
}

DWORD CHDW2(BYTE*& pbyTemp)
{
	DWORD byHH = *pbyTemp++;
	DWORD byH = *pbyTemp++;
	DWORD byL = *pbyTemp++;
	DWORD byLL = *pbyTemp++;
	return (byHH<<24) + (byH<<16) + (byL<<8) + byLL;
}

void SW(WORD wValue,BYTE*& pbyBuf)
{
	*pbyBuf++ = (BYTE)((wValue& 0xff00)>>8);
	*pbyBuf++ = (BYTE)(wValue& 0xff);

}

void SDW(DWORD dwValue,BYTE*& pbyBuf)
{
	*pbyBuf++ = (BYTE)((dwValue & 0xff000000)>>24);
	*pbyBuf++ = (BYTE)((dwValue & 0xff0000)>>16);
	*pbyBuf++ = (BYTE)((dwValue& 0xff00)>>8);
	*pbyBuf++ = (BYTE)(dwValue& 0xff);
}

void SHDW(DWORD dwValue,BYTE*& pbyBuf)
{
	*pbyBuf++ = (BYTE)((dwValue& 0xff00)>>8);
	*pbyBuf++ = (BYTE)(dwValue& 0xff);
	*pbyBuf++ = (BYTE)((dwValue & 0xff000000)>>24);
	*pbyBuf++ = (BYTE)((dwValue & 0xff0000)>>16);
}

BYTE xor_(BYTE *puchMsg, BYTE usDataLen)
{
	BYTE byRet = 0;
	for (BYTE by=0;by< usDataLen;by++)
		byRet ^=*(puchMsg+by);
	return byRet;
}

char g_szLocalAddr[16] = "\0";
char g_szPeerAddr[16] = "\0";
int	g_nPort = 5050;