底层技术:如何撤消一个TCP连接?
现采用sniff技术,截听到底层TCP数据包,现想撤除此TCP链接(代替其它程序发出撤出请求),请问该发出如何的TCP包?
TCP包头格式为:
typedef struct stuTcp{// TCP头
unsigned short PortSour;
unsigned short PortTar;
ULONG SeqNum;
ULONG AckNum;
BYTE HeadLen;
BYTE Flag;
unsigned short WindowSize;
unsigned short CheckSum;
unsigned short InstancyPointer;
}NetStu_TcpHead;
除了Flag为RST(0x04),其它各单元的数据该如何确定?