gistfile1.c

int main(int argc, char **argv) 
{
    int listenfd, port;

    char * root = NULL;
    int opt;
    while ((opt = getopt(argc, argv, "p:R:")) > 0)
    {
        switch(opt)
        {
            case 'p':
                port = atoi(optarg);
            case 'R': 
                root = optarg;
                break;
        }
    }

    list_init(&memory_list);

    listenfd = Open_listenfd(port);
    
    pthread_t ipv6_thread, ipv4_thread;

    pthread_create(&ipv4_thread, NULL, &doit, NULL);
    pthread_create(&ipv6_thread, NULL, &doit, NULL);
}

void * ipv6_listener() 
{
    int clientlen, connfd;
    struct sockaddr_in clientaddr;

    while(1) {
        pthread_t thread;

        clientlen = sizeof(clientaddr);
        connfd = Accept(listenfd, (SA *)&clientaddr, &clientlen);
        pthread_create(&thread, NULL, &doit, (void *)connfd);    
    }
}

void * ipv4_listener() 
{
    int clientlen;
    struct sockaddr_in clientaddr;

    while(1) {
        pthread_t thread;

        clientlen = sizeof(clientaddr);
        connfd = Accept(listenfd, (SA *)&clientaddr, &clientlen);
        pthread_create(&thread, NULL, &doit, (void *)connfd);
    }
}


/*
ssh -L 17857:localhost:17857 yourpid@rlogin.cs.vt.edu
http://localhost:17857/
*/