#include<winsock.h>
#include<iostream.h>
#include<string.h>
#pragma comment(lib,"wsock32.lib")

SOCKET server;
SOCKET client;

int main()
{
	WORD sockversion;
	WSADATA wsaData;
	int net;
	
	sockversion=MAKEWORD(1,1);
	WSAStartup(sockversion,&wsaData);
	
	server=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
	if(server==INVALID_SOCKET)
	{
		cout<<"invalid socket\n";
		WSACleanup();
	}
	
	sockaddr_in sin;
	sin.sin_family=PF_INET;
	sin.sin_port=htons(8888);
	sin.sin_addr.s_addr=INADDR_ANY;
	
	net=bind(server,(LPSOCKADDR)&sin,sizeof(sin));
	if(net==SOCKET_ERROR)
	{
		cout<<"failed bind()";
		WSACleanup();
	}
	
	net=listen(server,4);
	if(net==SOCKET_ERROR)
	{
		cout<<"failed listen\n";
		WSACleanup();
	}
	
	client=accept(server,NULL,NULL);
	if(client==INVALID_SOCKET)
	{
		cout<<"failed accept\n";
		WSACleanup();
	}
	
	while(true);
	{
		char rdata[5000];
		char data[5000];
		
		net=recv(client,rdata,strlen(rdata),0);
		if(net==SOCKET_ERROR)
		{
			cout<<"failed recv()\n";
			WSACleanup();
		}
		
		cout<<"===================================\n";
		cout<<"\n";
		cout<<">>"<<rdata<<'\n';
		cout<<"<you said>"<<data<<'\n';
		cout<<"\n";
		cout<<"===================================\n";
		cout<<">> ";
		cin.get(data,4999);
		cin.ignore(80,'\n');
		
		net=send(server,data,strlen(data),0);
		if(net==SOCKET_ERROR)
		{
			cout<<"failed send\n";
			WSACleanup();
		}
	}
	
	WSACleanup();
	closesocket(server);
	closesocket(client);
	return 0;
}

#include<winsock.h>
#include<iostream.h>
#include<string.h>
#pragma comment(lib,"wsock32.lib")

SOCKET server;
SOCKET client;

int main()
{
	WORD sockversion;
	WSADATA wsaData;
	int net;
	
	sockversion=MAKEWORD(1,1);
	WSAStartup(sockversion,&wsaData);
	
	client=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
	if(client==INVALID_SOCKET)
	{
		cout<<"invalid socket\n";
		WSACleanup();
	}
	
	sockaddr_in sin;
	sin.sin_familt=PF_INET;
	sin.sin_port=htons(8888);
	sin.sin_addr.s_addr=inet_addr("127.0.0.1");
	
	net=connect(client,(LPSOCKADDR)&sin,sizeof(sin));
	if(net==SOCKET_ERROR)
	{
		cout<<"failed to connect to server\n";
		WSACleanup();
	}
	
	
	while(true);
	{
		char rdata[5000];
		char data[5000];
		
		net=send(server,data,strlen(data),0);
		if(net==SOCKET_ERROR)
		{
			cout<<"failed send\n";
			WSACleanup();
		}
		
		cout<<"===================================\n";
		cout<<"\n";
		cout<<">>"<<rdata<<'\n';
		cout<<"<you said>"<<data<<'\n';
		cout<<"\n";
		cout<<"===================================\n";
		cout<<">> ";
		cin.get(data,4999);
		cin.ignore(80,'\n');
		
		net=recv(client,rdata,strlen(rdata),0);
		if(net==SOCKET_ERROR)
		{
			cout<<"failed recv()\n";
			WSACleanup();
		}
	}
	
	WSACleanup();
	closesocket(server);
	closesocket(client);
	return 0;
}