Demo phép cộng 2 số nguyên

// server.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "server.h"
#include "afxsock.h"
#include "conio.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only application object

CWinApp theApp;

using namespace std;

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
int nRetCode = 0;

// initialize MFC and print and error on failure
if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
{
// TODO: change error code to suit your needs
cerr << _T("Fatal Error: MFC initialization failed") << endl;
nRetCode = 1;
}
else
{
// TODO: code your application's behavior here.

AfxSocketInit(NULL);

CSocket server, s;
int a, b, c;
int cont = 1;

server.Create(2345);
server.Listen();
int temp = server.Accept(s);

if (temp)
{
do
{
s.Receive(&a, sizeof (int));
s.Receive(&b, sizeof (int));
c = a + b;
printf ("%d + %d = %d", a, b, c);

printf ("\nCo muon tiep tuc khong? 0/1");
scanf ("%d", &cont);
s.Send(&cont, sizeof (int));

} while (cont != 0);
}

s.Close();
server.Close();
}

getch();

return nRetCode;
}

// client.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "client.h"
#include "afxsock.h"
#include "conio.h"
#include "stdio.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only application object

CWinApp theApp;

using namespace std;

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
int nRetCode = 0;

// initialize MFC and print and error on failure
if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
{
// TODO: change error code to suit your needs
cerr << _T("Fatal Error: MFC initialization failed") << endl;
nRetCode = 1;
}
else
{
// TODO: code your application's behavior here.

AfxSocketInit(NULL);
CSocket client;
int a, b, cont;
char temp[50];

client.Create();
int k = client.Connect("127.0.0.1", 2345);
if (k)
{
do
{
printf ("a = ");
gets(temp);
a = atoi(temp);

printf ("b = ");
gets(temp);
b = atoi(temp);


client.Send(&a, sizeof (int));
client.Send(&b, sizeof (int));

client.Receive(&cont, sizeof (int));

} while (cont != 0);
}
client.Close();
}
getch();

return nRetCode;
}

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