tcp retransmission 관련.

#include <winsock2.h>
#include <stdio.h>
 
int main(void)
{
	WSADATA wsaData;
	SOCKET s;
	SOCKADDR_IN ServerAddr;
	int Port = 5150;
	char achrData[6] = {0x83, 0x00, 0x34, 0x12, 0x01, 0x00};
	char achrBuffer[2] = {0x00, 0x00};
 
	WSAStartup(MAKEWORD(2,2), &wsaData);
 
	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
 
	ServerAddr.sin_family = AF_INET;
	ServerAddr.sin_port = htons(Port);
	ServerAddr.sin_addr.S_un.S_addr = inet_addr("192.168.123.203");
 
	connect(s, (SOCKADDR *) &ServerAddr, sizeof(ServerAddr));
 
	while(getchar())
	{
		send(s, achrData, 6, 0);
 
		recv(s, achrBuffer, 2, 0);
	}
 
	closesocket(s);
 
	WSACleanup();
 
 
	return 0;
}