serm.cpp

实现arq滑动窗口协议客户端源程序

#include<winsock2.h>
#include"stdio.h"
#pragma comment(lib,"ws2_32")
#include<stdlib.h>
#include<windows.h>
void main()
{
	WSADATA ws;
	SOCKET s;
	
	struct sockaddr_in addr;
	int RESULT;
    long lRESULT;
	for(int i=1;i<200;i++)
	{
		lRESULT=WSAStartup(0x0101,&ws);


		s=socket(PF_INET,SOCK_STREAM,0);
		addr.sin_family=PF_INET;
		addr.sin_addr.s_addr=inet_addr("202.195.168.22");
		addr.sin_port=htons(i);



		if(s==INVALID_SOCKET)
		break;
		RESULT=connect(s,(struct sockaddr*)&addr,sizeof(addr));
		if(RESULT!=0)
		{
			printf("202.195.168.22:%i  inactive\n",i);
			WSACleanup();
		}
			else
			{ 
				printf("202.195.168.22:%i active\n",i);
				
			}
			
			closesocket(s);
		}
	}