Serveur/client sous windows en mode console (vc++,devcpp,borland)

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Description

Compilé sous VC++6, DevCpp, Borland 5.5
(Sous DevCpp, ne pas oublier de rajouter dans les options du projet -lwsock32)

En mode console sous windows !
J'ai laissé les possibilités d'afficher les codes d'erreur (pratique pour le déboguage)
A mettre dans deux fichiers différents.

Lancer le serveur puis le client.

Source / Exemple :


///////////////////////////////////////////////////////////////////////////////////////////////////
// LE SERVEUR
// serveur.cpp

#include <iostream>
using namespace std ;
#include <stdlib.h>
#include <winsock.h>
#include <string.h>

#define PORT 15                        // Port arbitraire de communication

//#define DEBUG                        // Si vous voulez pouvoir afficher les codes d'erreur

void ErreurWSA();

void main()
{

	cout << "Serveur pret." << endl;

	WORD wVersionRequested;
	WSADATA wsaData;
	wVersionRequested = MAKEWORD(1, 1);
	if (WSAStartup(wVersionRequested, &wsaData))
	{
		cerr << "Erreur WSAStartup : " ;
		ErreurWSA();
		system("PAUSE") ;
		exit(1) ;
	}	

	
	SOCKET s;
	s = socket(AF_INET,SOCK_STREAM,0);
	if(s==INVALID_SOCKET)
	{
		cerr << "ERREUR SOCKET : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(1) ;
	}
	else
		cout << "SOCKET : " << s << endl;

	
	struct sockaddr_in sain;
	sain.sin_family = AF_INET;
	sain.sin_port = htons(PORT);
	sain.sin_addr.s_addr = INADDR_ANY;

	if(bind(s, (struct sockaddr *) &sain, sizeof(struct sockaddr_in)) == SOCKET_ERROR) 
    {
		cerr << "ERREUR BIND : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(1) ;
	}

	if (listen(s, 5)==SOCKET_ERROR) 
    {
		cerr << "ERREUR LISTEN : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(1) ;
	}

	cout << "En attente de connection." << endl;

	SOCKET ns;
	struct sockaddr_in fsain;
	int fromlen = sizeof(struct sockaddr_in);
	ns = accept(s,(struct sockaddr *) &fsain, &fromlen);

	if(ns==SOCKET_ERROR)
	{
		cerr << "ERREUR ACCEPT : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(1) ;
	}

	cout << "Connection avec le client etablie." << endl;

	char buffer[64];
	int rec;

	do
	{
		rec = recv(ns,buffer,64*sizeof(char),0); 
		buffer[rec] = '\0' ;
		cout << buffer << endl;
		memset(buffer, 0, 64*sizeof(char));
	
	}while(rec>0);

	cout << "Connection fermee par le client" << endl;

	if(closesocket(s)==SOCKET_ERROR)
	{
		cerr << "ERREUR CLOSE : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(8) ;
	}		

	WSACleanup();

	cout << endl ;
	system("PAUSE");

}

#ifdef DEBUG
void ErreurWSA()
{
	int error = WSAGetLastError();

	switch(error)
	{
	case WSAEINTR:
		{
			cerr << "WSAEINTR" << endl;
			break;
		}
	case WSAEBADF:
		{
			cerr << "WSAEBADF" << endl;
			break;
		}
	case WSAEACCES:
		{
			cerr << "WSAEACCES" << endl;
			break;
		}
	case WSAEDISCON:
		{
			cerr << "WSAEDISCON" << endl;
			break;
		}
	case WSAEFAULT:
		{
			cerr << "WSAEFAULT" << endl;
			break;
		}
	case WSAEINVAL:
		{
			cerr << "WSAEINVAL" << endl;
			break;
		}
	case WSAEMFILE:
		{
			cerr << "WSAEMFILE" << endl;
			break;
		}
	case WSAEWOULDBLOCK:
		{
			cerr << "WSAEWOULDBLOCK" << endl;
			break;
		}
	case WSAEINPROGRESS:
		{
			cerr << "WSAEINPROGRESS" << endl;
			break;
		}
	case WSAEALREADY:
		{
			cerr << "WSAEALREADY" << endl;
			break;
		}
	case WSAENOTSOCK:
		{
			cerr << "WSAENOTSOCK" << endl;
			break;
		}
	case WSAEDESTADDRREQ:
		{
			cerr << "WSAEDESTADDRREQ" << endl;
			break;
		}
	case WSAEMSGSIZE:
		{
			cerr << "WSAEMSGSIZE" << endl;
			break;
		}
	case WSAEPROTOTYPE:
		{
			cerr << "WSAEPROTOTYPE" << endl;
			break;
		}
	case WSAENOPROTOOPT:
		{
			cerr << "WSAENOPROTOOPT" << endl;
			break;
		}
	case WSAEPROTONOSUPPORT:
		{
			cerr << "WSAEPROTONOSUPPORT" << endl;
			break;
		}
	case WSAESOCKTNOSUPPORT:
		{
			cerr << "WSAESOCKTNOSUPPORT" << endl;
			break;
		}
	case WSAEOPNOTSUPP:
		{
			cerr << "WSAEOPNOTSUPP" << endl;
			break;
		}
	case WSAEPFNOSUPPORT:
		{
			cerr << "WSAEPFNOSUPPORT" << endl;
			break;
		}
	case WSAEAFNOSUPPORT:
		{
			cerr << "WSAEAFNOSUPPORT" << endl;
			break;
		}
	case WSAEADDRINUSE:
		{
			cerr << "WSAEADDRINUSE" << endl;
			break;
		}
	case WSAEADDRNOTAVAIL:
		{
			cerr << "WSAEADDRNOTAVAIL" << endl;
			break;
		}
	case WSAENETDOWN:
		{
			cerr << "WSAENETDOWN" << endl;
			break;
		}
	case WSAENETUNREACH:
		{
			cerr << "WSAENETUNREACH" << endl;
			break;
		}
	case WSAENETRESET:
		{
			cerr << "WSAENETRESET" << endl;
			break;
		}
	case WSAECONNABORTED:
		{
			cerr << "WSAECONNABORTED" << endl;
			break;
		}
	case WSAECONNRESET:
		{
			cerr << "WSAECONNRESET" << endl;
			break;
		}
	case WSAENOBUFS:
		{
			cerr << "WSAENOBUFS" << endl;
			break;
		}
	case WSAEISCONN:
		{
			cerr << "WSAEISCONN" << endl;
			break;
		}
	case WSAENOTCONN:
		{
			cerr << "WSAENOTCONN" << endl;
			break;
		}
	case WSAESHUTDOWN:
		{
			cerr << "WSAESHUTDOWN" << endl;
			break;
		}
	case WSAETOOMANYREFS:
		{
			cerr << "WSAETOOMANYREFS" << endl;
			break;
		}
	case WSAETIMEDOUT:
		{
			cerr << "WSAETIMEDOUT" << endl;
			break;
		}
	case WSAECONNREFUSED:
		{
			cerr << "WSAECONNREFUSED" << endl;
			break;
		}
	case WSAELOOP:
		{
			cerr << "WSAELOOP" << endl;
			break;
		}
	case WSAENAMETOOLONG:
		{
			cerr << "WSAENAMETOOLONG" << endl;
			break;
		}
	case WSAEHOSTDOWN:
		{
			cerr << "WSAEHOSTDOWN" << endl;
			break;
		}
	case WSAEHOSTUNREACH:
		{
			cerr << "WSAEHOSTUNREACH" << endl;
			break;
		}
	case WSASYSNOTREADY:
		{
			cerr << "WSASYSNOTREADY" << endl;
			break;
		}
	case WSAVERNOTSUPPORTED:
		{
			cerr << "WSAVERNOTSUPPORTED" << endl;
			break;
		}
	case WSANOTINITIALISED:
		{
			cerr << "WSANOTINITIALISED" << endl;
			break;
		}
	case WSAHOST_NOT_FOUND:
		{
			cerr << "WSAHOST_NOT_FOUND" << endl;
			break;
		}
	case WSATRY_AGAIN:
		{
			cerr << "WSATRY_AGAIN" << endl;
			break;
		}
	case WSANO_RECOVERY:
		{
			cerr << "WSANO_RECOVERY" << endl;
			break;
		}
	case WSANO_DATA:
		{
			cerr << "WSANO_DATA" << endl;
			break;
		}
	default:
		{
			cerr << "Erreur inconnue" << endl;
			break;
		}
	}
}

#else //DEBUG
void ErreurWSA(){}

#endif //DEBUG

////////////////////////////////////////////////////////////////////////////////////////////////////
// LE CLIENT
// client.cpp

#include <iostream>
using namespace std;
#include <stdlib.h>
#include <winsock.h>
#include <string.h>

#define PORT 15                            // même port que le serveur

//#define DEBUG
void ErreurWSA();
void Syntaxe();

void main(int argc, char *argv[])
{
    if(argc<2||argc>3)
    {
        Syntaxe();
    }
	cout << "Client pret." << endl;

	WORD wVersionRequested;
	WSADATA wsaData;
	wVersionRequested = MAKEWORD(1, 1);
	if (WSAStartup(wVersionRequested, &wsaData))
	{
		cerr << "Erreur WSAStartup : ";
		ErreurWSA();
		system("PAUSE");
		exit(2);
	}
	
	
	
	SOCKET s;
	s = socket(AF_INET,SOCK_STREAM,0);
	if(s==INVALID_SOCKET)
	{
		cerr << "ERREUR SOCKET : ";
		ErreurWSA();
		system("PAUSE");
		exit(2);
	}
	else
		cout << "SOCKET : " << s << endl;

	struct sockaddr_in sain;
	sain.sin_family = AF_INET;
	sain.sin_port = htons(PORT);
	sain.sin_addr.s_addr = INADDR_ANY;

    if(!strcmp(argv[1],"-ip"))
    {
        cout << "Connection a " << argv[2] << endl;
	    sain.sin_addr.s_addr = inet_addr(argv[2]);
    }
    else
    {
    	struct hostent * host;
	    char FAR hostname[64];
        if(!strcmp(argv[1],"-host"))
        {
             cout << "Connection a " << argv[2] << endl;
             strcpy(hostname, argv[2]);
        }
        else if(!strcmp(argv[1],"-localhost"))
        {
        	gethostname(hostname, sizeof(hostname));
            cout << "Connection a " << hostname << endl;
        }
        else
        {
            Syntaxe();
        }
        host = gethostbyname(hostname);
        memcpy(&sain.sin_addr.s_addr, host->h_addr, host->h_length);
    }

	if(connect(s, (struct sockaddr *) &sain, sizeof(sain))==SOCKET_ERROR) 
    {
		cerr << "ERREUR CONNECT : ";
		ErreurWSA();
		system("PAUSE");
		exit(2);
	}

	cout << "Client connecte au serveur." << endl;
	cout << "\"close\" pour quitter." << endl;

	char clnt[64];
	strcpy(clnt,"Client connecte.");
	do
	{
		if(send(s, clnt, strlen(clnt), 0)==SOCKET_ERROR)
		{
			cerr << "ERREUR SEND : ";
			ErreurWSA();
			system("PAUSE");
			exit(2);
		}
		cout << "Envoye : " << clnt << endl << "# ";
		cin.getline(clnt,64,'\n');

	}while(strcmp(clnt,"close"));
	
	
	
	if(closesocket(s)==SOCKET_ERROR)
	{
		cerr << "ERREUR CLOSE : ";
		ErreurWSA();
		system("PAUSE") ;
		exit(2) ;
	}		

	WSACleanup();

	cout << endl ;
	system("PAUSE");

}

void Syntaxe()
{
     cout << "Syntaxe : client.exe [options]" << endl;
     cout << " -localhost\n -host NomDeLHote\n -ip \"AdresseIP\"\n" << endl;
     system("PAUSE");
     exit(1);
}  

#ifdef DEBUG
void ErreurWSA()
{
	int error = WSAGetLastError();

	switch(error)
	{
	case WSAEINTR:
		{
			cerr << "WSAEINTR" << endl;
			break;
		}
	case WSAEBADF:
		{
			cerr << "WSAEBADF" << endl;
			break;
		}
	case WSAEACCES:
		{
			cerr << "WSAEACCES" << endl;
			break;
		}
	case WSAEDISCON:
		{
			cerr << "WSAEDISCON" << endl;
			break;
		}
	case WSAEFAULT:
		{
			cerr << "WSAEFAULT" << endl;
			break;
		}
	case WSAEINVAL:
		{
			cerr << "WSAEINVAL" << endl;
			break;
		}
	case WSAEMFILE:
		{
			cerr << "WSAEMFILE" << endl;
			break;
		}
	case WSAEWOULDBLOCK:
		{
			cerr << "WSAEWOULDBLOCK" << endl;
			break;
		}
	case WSAEINPROGRESS:
		{
			cerr << "WSAEINPROGRESS" << endl;
			break;
		}
	case WSAEALREADY:
		{
			cerr << "WSAEALREADY" << endl;
			break;
		}
	case WSAENOTSOCK:
		{
			cerr << "WSAENOTSOCK" << endl;
			break;
		}
	case WSAEDESTADDRREQ:
		{
			cerr << "WSAEDESTADDRREQ" << endl;
			break;
		}
	case WSAEMSGSIZE:
		{
			cerr << "WSAEMSGSIZE" << endl;
			break;
		}
	case WSAEPROTOTYPE:
		{
			cerr << "WSAEPROTOTYPE" << endl;
			break;
		}
	case WSAENOPROTOOPT:
		{
			cerr << "WSAENOPROTOOPT" << endl;
			break;
		}
	case WSAEPROTONOSUPPORT:
		{
			cerr << "WSAEPROTONOSUPPORT" << endl;
			break;
		}
	case WSAESOCKTNOSUPPORT:
		{
			cerr << "WSAESOCKTNOSUPPORT" << endl;
			break;
		}
	case WSAEOPNOTSUPP:
		{
			cerr << "WSAEOPNOTSUPP" << endl;
			break;
		}
	case WSAEPFNOSUPPORT:
		{
			cerr << "WSAEPFNOSUPPORT" << endl;
			break;
		}
	case WSAEAFNOSUPPORT:
		{
			cerr << "WSAEAFNOSUPPORT" << endl;
			break;
		}
	case WSAEADDRINUSE:
		{
			cerr << "WSAEADDRINUSE" << endl;
			break;
		}
	case WSAEADDRNOTAVAIL:
		{
			cerr << "WSAEADDRNOTAVAIL" << endl;
			break;
		}
	case WSAENETDOWN:
		{
			cerr << "WSAENETDOWN" << endl;
			break;
		}
	case WSAENETUNREACH:
		{
			cerr << "WSAENETUNREACH" << endl;
			break;
		}
	case WSAENETRESET:
		{
			cerr << "WSAENETRESET" << endl;
			break;
		}
	case WSAECONNABORTED:
		{
			cerr << "WSAECONNABORTED" << endl;
			break;
		}
	case WSAECONNRESET:
		{
			cerr << "WSAECONNRESET" << endl;
			break;
		}
	case WSAENOBUFS:
		{
			cerr << "WSAENOBUFS" << endl;
			break;
		}
	case WSAEISCONN:
		{
			cerr << "WSAEISCONN" << endl;
			break;
		}
	case WSAENOTCONN:
		{
			cerr << "WSAENOTCONN" << endl;
			break;
		}
	case WSAESHUTDOWN:
		{
			cerr << "WSAESHUTDOWN" << endl;
			break;
		}
	case WSAETOOMANYREFS:
		{
			cerr << "WSAETOOMANYREFS" << endl;
			break;
		}
	case WSAETIMEDOUT:
		{
			cerr << "WSAETIMEDOUT" << endl;
			break;
		}
	case WSAECONNREFUSED:
		{
			cerr << "WSAECONNREFUSED" << endl;
			break;
		}
	case WSAELOOP:
		{
			cerr << "WSAELOOP" << endl;
			break;
		}
	case WSAENAMETOOLONG:
		{
			cerr << "WSAENAMETOOLONG" << endl;
			break;
		}
	case WSAEHOSTDOWN:
		{
			cerr << "WSAEHOSTDOWN" << endl;
			break;
		}
	case WSAEHOSTUNREACH:
		{
			cerr << "WSAEHOSTUNREACH" << endl;
			break;
		}
	case WSASYSNOTREADY:
		{
			cerr << "WSASYSNOTREADY" << endl;
			break;
		}
	case WSAVERNOTSUPPORTED:
		{
			cerr << "WSAVERNOTSUPPORTED" << endl;
			break;
		}
	case WSANOTINITIALISED:
		{
			cerr << "WSANOTINITIALISED" << endl;
			break;
		}
	case WSAHOST_NOT_FOUND:
		{
			cerr << "WSAHOST_NOT_FOUND" << endl;
			break;
		}
	case WSATRY_AGAIN:
		{
			cerr << "WSATRY_AGAIN" << endl;
			break;
		}
	case WSANO_RECOVERY:
		{
			cerr << "WSANO_RECOVERY" << endl;
			break;
		}
	case WSANO_DATA:
		{
			cerr << "WSANO_DATA" << endl;
			break;
		}
	default:
		{
			cerr << "Erreur inconnue" << endl;
			break;
		}
	}
}

#else //DEBUG
void ErreurWSA(){}

#endif //DEBUG

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