CLIENT.c

//CLIENT

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <string.h>

int n,codice,y,sockfd;
char recvline[1025];

typedef struct utente{
    char ID[10];
    int password;
    int stato;
    int vinte;
    int perse;
    }t_utente;

t_utente array[5];
t_utente ricevi;
int a,i = 0,j = 0,scelta;
char* user;
int pass = 0;
char recvline[1025];
char buff[4096];
struct sockaddr_in servaddr;
int controllo = -1;
int log_in_user(char* user);
int log_in_pass(int pass);
void stampa();

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

    if (argc != 2){
        fprintf(stderr,"usage: %s <IPaddress>\n",argv[0]);
            exit (1);
    }
        if ( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
            fprintf(stderr,"socket error\n");
            exit (1);
        }
//creo la socket
    servaddr.sin_family = AF_INET;
    servaddr.sin_port = htons(3100);
    if (inet_pton(AF_INET, argv[1], &servaddr.sin_addr) <= 0){
            fprintf(stderr,"inet_pton error for %s\n", argv[1]);
            exit (1);
    }
    //do la definizione alla socket, la famiglia ip4, la porta associata e faccio la conversione
    //della stringa che rappresenta l'indirizzo d rete
    if (connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) < 0){
            fprintf(stderr,"connect error\n");
            exit(1);
    }
//cerco di connettermi al server

    while (controllo != 1){
        user = malloc(sizeof(char));
        printf("LOG IN\n");
        printf("\nNOME UTENTE:");
        scanf("%s",user);
        i = log_in_user(user);
        printf("\n\nPASSWORD: ");
        scanf("%d",&pass);
        j = log_in_pass(pass);
        stampa();
        read(sockfd,&controllo,sizeof(controllo));
    }
    int scelta = 0;
    while(scelta != 4){
        printf("\n\n----MENU----\n");
        printf("\n[0]-Visualizza partite");
        printf("\n[1]-Sfida utente attivi");
        printf("\n[2]-Utenti attivi");
        printf("\n[3]-Utenti occupati");
        printf("\n[4]-USCITA!");
        printf("\n\nSCELTA: ");
        scanf("%d",&scelta);
        snprintf(buff,sizeof(buff), "%d\r\n",scelta);
        if( write(sockfd,buff, strlen(buff)) != strlen(buff)){
            perror("write");
            exit(1);
        }
        switch(scelta){
            case 0:break;
            case 1:break;
            case 2:stampa();
                break;
        }
    }
}

int log_in_user(char* user){
    int i=0;
        snprintf(buff, 10, "%s\r\n",(char*) user);
        if ( write(sockfd, buff, strlen(buff)) != strlen(buff)){
            perror("write");
            exit(1);
        }
}

int log_in_pass(int pass){
    int j=0;
    snprintf(buff,sizeof(buff), "%d\r\n",pass);
    if ( write(sockfd, buff, strlen(buff)) != strlen(buff)){
            perror("write");
            exit(1);
        }
}

void stampa(){
        read(sockfd, &ricevi, sizeof(ricevi));
        printf("\nUtente: %s \n", ricevi.ID);
    printf("---STATO---\n");
    printf("(0)-OFFLINE\n(1)-ONLINE\n(2)-BUSY\n");
    printf("----[%d]----", ricevi.stato);
}