/*
 * File:   server.c
 * Author: maxwell
 *
 * Created on April 20, 2011, 9:46 PM
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <sys/wait.h>
#include <signal.h>



int main(int argc, char** argv) {
    int sockfd; //Our socket
    int sum = 0;
    int i;
    int *recvbuff;
    struct addrinfo hints;
    struct addrinfo *servinfo;

    memset(&hints, 0, sizeof hints);
    hints.ai_family = AF_UNSPEC;     // don't care IPv4 or IPv6
    hints.ai_socktype = SOCK_STREAM; // TCP stream sockets
    hints.ai_flags = AI_PASSIVE;     // fill in my IP for me

    if (getaddrinfo("vortex.labs.overthewire.org", "5842", &hints, &servinfo) != 0) {
        puts("Error getting address info for vortex.labs.overthewire.org");
    }

    sockfd = socket(servinfo->ai_family, servinfo->ai_socktype, servinfo->ai_protocol);
    connect(sockfd, servinfo->ai_addr, servinfo->ai_addrlen);
    freeaddrinfo(servinfo);

    recvbuff = malloc(sizeof(unsigned int) * 4);

    for (i = 0; i < 4; i++) {
        recv(sockfd, recvbuff, 4, 0);
        sum += *(recvbuff + 0);
        memset(recvbuff, 0, sizeof(int));
    }

    send(sockfd, &sum, 16, 0);
    char *pass = malloc(100);
    recv(sockfd, pass, 100, 0);
    printf("%s\n", pass);
    close(sockfd);
    return 0;
}