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/* -ed- compatibilité Windows, organisation, mise en forme */
/* server.c */
#ifdef __cplusplus
#error Be sure you are using a C compiler...
#endif
#if defined (WIN32)
#include <winsock2.h>
#elif defined (linux) || defined (_POSIX_VERSION) || defined (_POSIX2_C_VERSION)\
|| defined (_XOPEN_VERSION)
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h> /* close */
#define INVALID_SOCKET -1
#define SOCKET_ERROR -1
#define closesocket(s) close (s)
typedef int SOCKET;
typedef struct sockaddr_in SOCKADDR_IN;
typedef struct sockaddr SOCKADDR;
#else
#error not defined for this platform
#endif
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
/* macros ============================================================== */
#define PORT 80
#define BACKLOG 5
#define MAXDATASIZE 2048
#define NB_THREADS 5
/* constants =========================================================== */
/* types =============================================================== */
/* structures ========================================================== */
/* private data ======================================================== */
/* private functions =================================================== */
char buff[MAXDATASIZE];
int i;
int sockfd, newsockfd;
int pid, sin_size, nbytes;
struct sockaddr_in serveraddr; /* l'adreese de la socket serveur */
struct sockaddr_in clientaddr; /* l'adresse de la socket client */
struct hostent *hostinfo;
char *a;
int count;
int x = 0, nthreads = 0;
pthread_t id[NB_THREADS];
static void *traitement(void*p_data)
{
(void)p_data;
return NULL;
}
void init_socket (void)
{
/*******CREATION DE SOCKET*******/
if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
{
printf ("création de socket impossible\n");
exit (1);
}
printf ("socket créé\n");
/*******REMPLISSAGE DE LA SOCKET******/
serveraddr.sin_family = AF_INET;
serveraddr.sin_port = htons (PORT);
serveraddr.sin_addr.s_addr = INADDR_ANY; /* remplissage automatique */
/********ATTACHEMANT DE LA SOCKET AU N°PORT********/
if (bind (sockfd, (struct sockaddr *) &serveraddr,
sizeof (struct sockaddr_in)) == 1)
{
exit (EXIT_FAILURE);
}
printf ("socket connecté au réseau\n");
/*******ECOUTE SUR LE RESEAU********/
if (listen (sockfd, BACKLOG) == -1)
{
exit (EXIT_FAILURE);
}
}
int connexion (void)
{
/* attente permanente */
while (1)
{
sin_size = sizeof (struct sockaddr);
if ((newsockfd = accept (sockfd,
(struct sockaddr *) &clientaddr,
&sin_size)) == -1)
{
exit (EXIT_FAILURE);
}
printf ("client connecté\n");
/*************/
clientaddr.sin_family = AF_INET;
clientaddr.sin_port = 80;
memcpy ((struct sockaddr *) &clientaddr.sin_addr.s_addr,
hostinfo->h_addr, 4);
a = inet_ntoa (clientaddr.sin_addr);
printf (" adresse du client est: %s\n", a);
/********CREATION DES THREADS*******/
if (pthread_create (&id[x++], NULL, traitement, NULL) != 0)
{
printf ("création du thread impossible\n");
}
else
{
if (nthreads++ >= NB_THREADS)
break;
}
}
for (x = 0; x < nthreads; x++)
{
if (pthread_join (id[x], NULL) < 0)
{
printf ("erreur de join\n");
}
closesocket (newsockfd);
}
closesocket (sockfd);
return 0;
}
static int server (void)
{
init_socket ();
connexion ();
return 0;
}
/* entry point ========================================================= */
/* ---------------------------------------------------------------------
--------------------------------------------------------------------- */
int main (void)
{
int ret;
#if defined (WIN32)
WSADATA wsa_data;
int err = WSAStartup (MAKEWORD (2, 2), &wsa_data);
if (!err)
{
puts ("WIN: winsock2: OK");
#else
int err;
#endif
server ();
#if defined (WIN32)
WSACleanup ();
}
#endif
if (err)
{
ret = EXIT_FAILURE;
}
else
{
ret = EXIT_SUCCESS;
}
return ret;
} |
