[C] Client / Serveur

#pragma comment(lib, "ws2_32.lib")

#include <iostream>
using namespace std;

--------------------Configuration: serveur - Win32 Debug--------------------
Compiling...
serveur.c
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(23) : error C2275: 'WSADATA' : illegal use of this type as an expression
        c:\program files\microsoft visual studio\vc98\include\winsock2.h(386) : see declaration of 'WSADATA'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(23) : error C2146: syntax error : missing ';' before identifier 'WSAData'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(23) : error C2065: 'WSAData' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(24) : warning C4133: 'function' : incompatible types - from 'int *' to 'struct WSAData *'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(25) : error C2275: 'SOCKET' : illegal use of this type as an expression
        c:\program files\microsoft visual studio\vc98\include\winsock2.h(85) : see declaration of 'SOCKET'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(25) : error C2146: syntax error : missing ';' before identifier 'sock'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(25) : error C2065: 'sock' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(26) : error C2275: 'SOCKET' : illegal use of this type as an expression
        c:\program files\microsoft visual studio\vc98\include\winsock2.h(85) : see declaration of 'SOCKET'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(26) : error C2146: syntax error : missing ';' before identifier 'csock'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(26) : error C2065: 'csock' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(27) : error C2275: 'SOCKADDR_IN' : illegal use of this type as an expression
        c:\program files\microsoft visual studio\vc98\include\winsock2.h(3576) : see declaration of 'SOCKADDR_IN'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(27) : error C2146: syntax error : missing ';' before identifier 'sin'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(27) : error C2065: 'sin' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(28) : error C2275: 'SOCKADDR_IN' : illegal use of this type as an expression
        c:\program files\microsoft visual studio\vc98\include\winsock2.h(3576) : see declaration of 'SOCKADDR_IN'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(28) : error C2146: syntax error : missing ';' before identifier 'csin'
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(28) : error C2065: 'csin' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(32) : error C2224: left of '.sin_addr' must have struct/union type
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(33) : error C2224: left of '.sin_family' must have struct/union type
c:\documents and settings\stvivotn\mes documents\serveur c\autre\serveur.c(34) : error C2224: left of '.sin_port' must have struct/union type
Error executing cl.exe.

serveur.obj - 18 error(s), 1 warning(s)

Compiling...
serveur.c
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(23) : error C2065: 'sockaddr_in' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(23) : error C2146: syntax error : missing ';' before identifier 'client'
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(23) : error C2065: 'client' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(23) : error C2065: 'serveur' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(24) : error C2143: syntax error : missing ';' before 'type'
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(25) : error C2143: syntax error : missing ';' before 'type'
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(27) : error C2065: 'sock_serveur' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(35) : error C2224: left of '.sin_family' must have struct/union type
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(36) : error C2224: left of '.sin_addr' must have struct/union type
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(37) : error C2224: left of '.siN_PORT' must have struct/union type
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(39) : error C2143: syntax error : missing ';' before 'type'
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(41) : error C2065: 'ret' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(60) : error C2065: 'sockaddr' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(60) : error C2059: syntax error : ')'
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(80) : error C2065: 'tampon' : undeclared identifier
c:\documents and settings\stvivotn\mes documents\serveur c\luffy\serveur.c(80) : error C2224: left of '.Format' must have struct/union type
Error executing cl.exe.

serveur.obj - 16 error(s), 0 warning(s)

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>

#define PORT 20100

void main(void)
{
    int ls,sk,nbr;
    struct sockaddr_in myaddr;
    struct sockaddr_in remaddr;
    char buffer[40];
    unsigned int addrlen;
    char message[]="Message du serveur";

    if (( ls = socket(AF_INET, SOCK_STREAM, 0)) == -1 )
    {
	printf("erreur appel socket");
    }
    memset (&myaddr, 0, sizeof(myaddr));

    myaddr.sin_port = PORT;

    myaddr.sin_family = AF_INET;

    if ( bind(ls,(struct sockaddr*)&myaddr, sizeof(struct sockaddr_in)) == -1)
    {
	perror("erreur bind");
    }

    if ( listen (ls,1) == -1 )
    {
	printf("erreur listen");
    }    
    
    addrlen = sizeof(struct sockaddr_in);

    if (( sk = accept(ls,(struct sockaddr*) &remaddr,&addrlen)) == -1 )
    {
	printf("erreur accept");
    }

    if ( (nbr=write(sk,message,strlen(message)+1)) == -1 )
    {
	printf("erreur write");
    }

    if (( nbr = read(sk,buffer,40)) == -1 )
    {
	printf("erreur read");
    }

    printf("j ai recu :%s \n",buffer);

    close(sk);
    if(close (sk)==-1)
    {
	perror("erreur appel close");
    }

    if(close (ls)==-1)
    {
	perror("erreur appel close");
    }

}

erreur creation socket serveur !

#include <stdio.h>
#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

#define N_PORT 5000
#define SERVEUR_CODE 1000
#define SER_ERROR SERVEUR_CODE + 1
#define SER_PORT_INVALIDE SERVEUR_CODE + 2
#define SER_SOCK_ERROR SERVEUR_CODE + 3
#define SER_LISTEN_ERROR SERVEUR_CODE + 4


int main ( int argc, char *argv[] ){

	struct sockaddr_in client,serveur; //contiendra les infos : IP, famille et le port
	int sock_serveur, ret; //n° de sockets


    if (N_PORT==0) //on teste le numéro de port
		return SER_PORT_INVALIDE;

	//création de la socket serveur :
	
	if ( (sock_serveur = socket(AF_INET,SOCK_STREAM,0)) == -1 )
	{
		printf("Probleme a la creation de la socket serveur !\n");
		exit(0);
	}

	serveur.sin_family=AF_INET;
	serveur.sin_addr.s_addr=inet_addr("127.0.0.1");
	serveur.sin_port=htons(N_PORT);


	if ( bind(sock_serveur,(struct sockaddr *)&serveur,sizeof(serveur)) != 0)
	{
		closesocket(sock_serveur);
		return SER_SOCK_ERROR;
	}

	// Mise a l ecoute :
	if ( listen(sock_serveur,SOCK_STREAM) != 0)
	{
		printf("Impossible d ecouter sur le port designe !\n");
		closesocket(sock_serveur);
		exit(SER_LISTEN_ERROR);
	}

	while (1)
	{
        char buf[256];
        int addrlen=sizeof(client);
        int sock_client = INVALID_SOCKET;

	    sock_client=accept(sock_serveur,(struct sockaddr*)&client, &addrlen);
	    if (sock_client==INVALID_SOCKET)
	    {
		    closesocket(sock_serveur);
		    return SER_SOCK_ERROR;
	    }

	    ret=recv(sock_client,buf,sizeof(buf),0);
	    if (ret==0)
	    {
		    closesocket(sock_serveur);
			printf("Erreur %d\n",SER_ERROR);
		    return SER_ERROR;
	    }
	    if (ret<255)
		    buf[ret+1]='\0';
	    else
		    buf[ret]='\0';

	    //tampon.Format("%s",buf);

	    memcpy(buf,"Bienvenue sur Luffy Duck's Serveur !\n\n Veuillez vous identifier :",256);
	    send(sock_client,buf,sizeof(buf),0);
	}
    
	return 0;
}

if ( (sock_serveur = socket(AF_INET,SOCK_STREAM,0)) == -1 )
	{
		printf("Probleme a la creation de la socket serveur !\n");
		exit(0);
	}