Supprimer 'client_echo.c'
This commit is contained in:
parent
d98d63986d
commit
d93dd24fe3
105
client_echo.c
105
client_echo.c
@ -1,105 +0,0 @@
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netdb.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
|
||||
#define BUF_SIZE 500
|
||||
|
||||
struct addrinfo *result; // tableau des adresses réseaux des serveurs
|
||||
|
||||
int cree_socket(char* ip, char* port, struct addrinfo hints){
|
||||
int s = getaddrinfo(ip, port, &hints, &result);
|
||||
if (s != 0) {
|
||||
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
|
||||
s = 1;
|
||||
}
|
||||
return s;
|
||||
}
|
||||
|
||||
void con_serveur(int *sfd){
|
||||
struct addrinfo *rp; // structure de l'adresse du client
|
||||
/* getaddrinfo () retourne une liste de structures d'adresses.
|
||||
Essayez chaque adresse jusqu'à ce que nous ayons réussi à bind(2).
|
||||
Si socket() (ou bind()) échoue, nous (fermons le socket et)
|
||||
essayons l'adresse suivante */
|
||||
|
||||
for (rp = result; rp != NULL; rp = rp->ai_next) {
|
||||
// socket crée un point de communication et renvoie un descripteur , sfd = socket file descriptor
|
||||
*sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
|
||||
if (*sfd == -1){
|
||||
continue;
|
||||
}
|
||||
if (connect(*sfd, rp->ai_addr, rp->ai_addrlen) != 1){
|
||||
break; // Succès
|
||||
}
|
||||
close(*sfd);
|
||||
}
|
||||
if (rp == NULL) { // Aucune adresse n'a pu marcher
|
||||
fprintf(stderr, "Could not connect\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
void sendreceive(char* argtemp, size_t len, int j, int sfd){
|
||||
char buf[BUF_SIZE];
|
||||
ssize_t nread;
|
||||
/* Send remaining command-line arguments as separate
|
||||
datagrams, and read responses from server */
|
||||
if (len + 1 > BUF_SIZE) {
|
||||
fprintf(stderr, "Ignoring long message in argument %d\n", j);
|
||||
}
|
||||
if (write(sfd, argtemp, len) != len) {
|
||||
fprintf(stderr, "partial/failed write\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
nread = read(sfd, buf, BUF_SIZE);
|
||||
if (nread == -1) {
|
||||
perror("read");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
printf("Received %ld bytes: %s\n", (long) nread, buf);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
struct addrinfo hints;
|
||||
int sfd, s, j;
|
||||
size_t len;
|
||||
char* argtemp;
|
||||
|
||||
if (argc < 3) { // vérification du nombre d'arguments rentrés
|
||||
fprintf(stderr, "mettre: %s ip port message\n", argv[0]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
char* ip = argv[1];
|
||||
char* port = argv[2];
|
||||
char* message = argv[3]; // remplissage des varables a partir des arguments passés au programme
|
||||
|
||||
/* Obtain address(es) matching host/port */
|
||||
memset(&hints, 0, sizeof(struct addrinfo));
|
||||
hints.ai_family = AF_UNSPEC; // utilisation du serveur sur IPv4/v6 (AF_INET/AF_INET6)
|
||||
hints.ai_socktype = SOCK_DGRAM; // socket en mode datagramme
|
||||
|
||||
s = cree_socket(ip, port, hints); // création du socket
|
||||
if(s == 1) {
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
con_serveur(&sfd);
|
||||
|
||||
freeaddrinfo(result); /* No longer needed */
|
||||
|
||||
for (j = 3; j < argc; j++) { // récupère les mots passés en arguments
|
||||
len = strlen(argv[j]) + 1;
|
||||
argtemp = argv[j];
|
||||
/* +1 for terminating null byte */
|
||||
sendreceive(argv[j], len, j, sfd);
|
||||
}
|
||||
|
||||
|
||||
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
Loading…
Reference in New Issue
Block a user