/*
 * Copyright (c) 2009, 2017 Jeffrey Armstrong
 * All rights reserved. 
 *
* Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This file is part of the uIP TCP/IP stack - MS-DOS FOSSIL port.
 * 
 * Author: Jeffrey Armstrong <jeff@rainbow-100.com>
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "fossil.h"
#include "uip.h"
#include "uip_arp.h"
#include "slipdev.h"
#include "slipfos.h"
#include "mainutil.h"

int common_init(char *host_ip, char *local_ip, char *netmask, 
                 char *fos_port, char *fos_speed)
{
int ip[4];
uip_ipaddr_t ipaddr;

    timer_set(&periodic_timer, CLOCK_SECOND / 2);

    /* Initialize the FOSSIL driver here */
    printf("Initializing FOSSIL driver...");
    if(slip_fossil_init(atoi(fos_speed),atoi(fos_port)) < 0) {
        printf("FAILED\nExiting...\n");
        return 0;
    }
    printf("OK\n");

    printf("Initializing SLIP interface...");
    slipdev_init();
    printf("OK\n");

    printf("Initializing uIP stack...");
    uip_init();
    printf("OK\n");
    
    /* Set IP and netmask from command line arguments */
    ip_from_string(host_ip,ip);
    uip_ipaddr(&ipaddr, ip[0], ip[1], ip[2], ip[3]);
    uip_setdraddr(&ipaddr);
    
    ip_from_string(local_ip,ip);
    uip_ipaddr(&ipaddr, ip[0], ip[1], ip[2], ip[3]);
    uip_sethostaddr(&ipaddr);
    
    ip_from_string(netmask,ip);
    uip_ipaddr(&ipaddr, ip[0], ip[1], ip[2], ip[3]);
    uip_setnetmask(&ipaddr);
    
    return 1;
}

int ip_from_string(const char *string, int ip[4])
{
char *token;
char *original;
int i, ret;

    for(i=0;i<4;i++) ip[i] = 0;
    if(string == NULL) return -1;

    original = (char *)malloc((strlen(string)+1)*sizeof(char));
    memcpy(original,string,strlen(string)+1);
    
    ret = 1;
    token = strtok(original,".");
    for(i=0;i<4;i++) {
        if(token == NULL) {
            ret = -1;
            break;
        }
        ip[i] = atoi(token);
        token = strtok(NULL,".");
    }

    token = NULL;
    free(original);
    
    return ret;
}

void uip_log(char *m)
{
#ifdef DEBUG
    printf("uIP log message: %s\n", m);
#endif
}