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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#define LG_BUFFER 1024
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int main (int argc, char * argv[]) {
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struct sockaddr_in adresse;
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int sock;
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char buffer [LG_BUFFER];
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int nb_lus;
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if (argc != 3){
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perror("Nombre d'arguments invalides, vous devez entrer deux arguments");
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exit(-1);
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}
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// Serveur auquel on se connecte
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//char * hote = "127.0.0.1";
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char * hote = argv[1];
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// Port du serveur sur lequel on se connecte0
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//int port = 1234;
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int port = atoi(argv[2]);
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struct hostent * hostent;
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struct servent * servent;
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// Vider la structure adresse
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memset(&adresse, 0, sizeof(struct sockaddr_in));
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// Donner l'adresse du serveur à la structure adresse
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if (inet_aton(hote, & (adresse.sin_addr)) == 0) {
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if ((hostent = gethostbyname(hote)) == NULL) {
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printf("Erreur : hote %s inconnu \n", hote);
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return -1;
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}
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adresse.sin_addr.s_addr = ((struct in_addr *) (hostent->h_addr))->s_addr;
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}
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// Donner un numero de port à la structure adresse
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adresse.sin_port = htons(port);
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// Donner la famille de socket à la structure adresse
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adresse.sin_family = AF_INET;
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// Créer la socket nommée sock
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if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0 ) {
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printf("Erreur : socket\n");
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exit(EXIT_FAILURE);
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}
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// Etablir la connexion avec le serveur
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if(connect(sock, (struct sockaddr *) & adresse, sizeof (struct sockaddr_in)) < 0 ) {
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printf("Erreur : socket");
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return -1;
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}
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while (1) {
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// Lecture du clavier
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if (fgets(buffer, 256, stdin) == NULL)
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break;
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if (buffer[strlen(buffer) - 1] == '\n')
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buffer[strlen(buffer) - 1] = '\0';
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// Ecriture des données sur la socket
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if (write(sock, buffer, strlen(buffer)) < 0 ) {
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printf("Erreur : write\n");
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break;
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}
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// Lecture de la réponse du serveur
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if ((nb_lus = read(sock, buffer, LG_BUFFER)) == 0 ) {
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break;
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}
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if (nb_lus < 0) {
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printf("Erreur : read\n");
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break;
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}
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// Affichage de données recues, variable buffer
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printf("%s\n", buffer);
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}
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return EXIT_SUCCESS;
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}
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