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@ -11,13 +11,12 @@
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struct addrinfo *result; /* tableau des adresses réseaux des clients */
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struct addrinfo *result; /* tableau des adresses réseaux des clients */
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int cree_socket(struct addrinfo hints, char* port){
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void cree_socket(struct addrinfo hints, char* port){
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int s = getaddrinfo(NULL, port, &hints, &result);
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int s = getaddrinfo(NULL, port, &hints, &result);
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if (s != 0) {
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if (s != 0) {
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fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
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fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
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s = 1;
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exit(EXIT_FAILURE);
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}
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}
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return s;
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}
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}
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void con_client(int *sfd){
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void con_client(int *sfd){
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@ -42,38 +41,43 @@ void con_client(int *sfd){
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fprintf(stderr, "Could not connect\n");
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fprintf(stderr, "Could not connect\n");
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exit(EXIT_FAILURE);
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exit(EXIT_FAILURE);
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}
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}
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listen(*sfd, MAX_CON);
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if (listen(*sfd, MAX_CON) == -1){
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fprintf(stderr, "erreur du listen");
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exit(EXIT_FAILURE);
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}
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freeaddrinfo(result); /* libère la structure d'adresse client */
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}
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}
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void traite_connexion(int sfd, int s){
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void traite_connexion(int *sfd){
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ssize_t nread;
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ssize_t nread;
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char buf[BUF_SIZE];
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char buf[BUF_SIZE];
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struct sockaddr_storage peer_addr;
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struct sockaddr_storage peer_addr;
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socklen_t peer_addr_len;
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socklen_t peer_addr_len;
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/* Lit les datagrammes et les renvoi au client */
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int s, new_sfd;
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char host[NI_MAXHOST], service[NI_MAXSERV];
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/* Lit les messages et les renvoi au client */
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for (;;) {
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for (;;) {
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peer_addr_len = sizeof(struct sockaddr_storage);
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peer_addr_len = sizeof(struct sockaddr_storage);
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accept(sfd, (struct sockaddr*)&peer_addr, &peer_addr_len); /* accepte la connexion */
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new_sfd = accept(*sfd, (struct sockaddr*) &peer_addr, &peer_addr_len); /* accepte la connexion */
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nread = recvfrom(sfd, buf, BUF_SIZE, 0, (struct sockaddr *) &peer_addr, &peer_addr_len);
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nread = read(new_sfd, buf, BUF_SIZE); /* lit dans le buffer de la connexion, renvoie la taille du message */
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if (nread == -1){
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if (nread == -1){
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continue;
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continue; /* ignore la mauvaise requete */
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/* ignore la mauvaise requete */
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}
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}
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char host[NI_MAXHOST], service[NI_MAXSERV];
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s = getnameinfo((struct sockaddr *) &peer_addr, peer_addr_len, host, NI_MAXHOST, service, NI_MAXSERV, NI_NUMERICSERV);
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s = getnameinfo((struct sockaddr *) &peer_addr, peer_addr_len, host, NI_MAXHOST, service, NI_MAXSERV, NI_NUMERICSERV);
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if (s == 0){
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if (s == 0){
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printf("Recu %ld octets de %s:%s\n", (long) nread, host, service);
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printf("Recu %ld octets de %s:%s\n", (long) nread, host, service);
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if (write(new_sfd, buf, nread) != nread){
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fprintf(stderr, "Erreur d'envoi de la reponse\n");
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}
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close(new_sfd);
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}
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}
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else{
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else{
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fprintf(stderr, "getnameinfo: %s\n", gai_strerror(s));
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fprintf(stderr, "getnameinfo: %s\n", gai_strerror(s));
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}
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}
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if (sendto(sfd, buf, nread, 0, (struct sockaddr *) &peer_addr, peer_addr_len) != nread){
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fprintf(stderr, "Erreur d'envoi de la reponse\n");
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}
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}
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}
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}
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}
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int main(int argc, char *argv[]){
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int main(int argc, char *argv[]){
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struct addrinfo hints;
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struct addrinfo hints;
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int s; /* s code de retour de getaddrinfo */
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int s; /* s code de retour de getaddrinfo */
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@ -92,16 +96,10 @@ int main(int argc, char *argv[]){
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hints.ai_socktype = SOCK_STREAM; /* socket en mode datagramme */
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hints.ai_socktype = SOCK_STREAM; /* socket en mode datagramme */
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hints.ai_protocol = IPPROTO_TCP; /* protocol de connexion */
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hints.ai_protocol = IPPROTO_TCP; /* protocol de connexion */
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s = cree_socket(hints, port); /* création du socket */
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cree_socket(hints, port); /* création du socket */
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if(s == 1) {
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exit(EXIT_FAILURE);
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}
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con_client(&sfd);
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freeaddrinfo(result); /* libère la structure d'adresse client */
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traite_connexion(sfd, s);
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con_client(&sfd); /* connexion au client */
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traite_connexion(&sfd);
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printf("traite_connexion ok\n");
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}
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}
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