/*
 * $Id: nemesis.c,v 1.1.1.1 2003/10/31 21:29:38 jnathan Exp $
 *
 * THE NEMESIS PROJECT
 * Copyright (C) 2002, 2003 Jeff Nathan <jeff@snort.org>
 *
 * nemesis.c (main)
 */

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "nemesis.h"

int main(int argc, char **argv)
{
    char **avtmp, *avval;
    extern int optind;

    avtmp = argv;
    avval = strrchr(*avtmp, '/');

    if (avval++ == NULL)
        avval = *avtmp;

    if (!strncmp(avval, "nemesis-arp", 11))
    {
        nemesis_arp(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "arp", 3))
    {
        argv += optind;
        argc -= optind;
        nemesis_arp(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-dns", 11))
    {
        nemesis_dns(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "dns", 3))
    {
        argv += optind;
        argc -= optind;
        nemesis_dns(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-ethernet", 16))
    {
        nemesis_ethernet(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "ethernet", 8))
    {
        argv += optind;
        argc -= optind;
        nemesis_ethernet(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-icmp", 12))
    {
        nemesis_icmp(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "icmp", 4))
    {
        argv += optind;
        argc -= optind;
        nemesis_icmp(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-igmp", 12))
    {
        nemesis_igmp(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "igmp", 4))
    {
        argv += optind;
        argc -= optind;
        nemesis_igmp(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-ip", 10))
    {
        nemesis_ip(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "ip", 2))
    {
        argv += optind;
        argc -= optind;
        nemesis_ip(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-ospf", 12))
    {
        nemesis_ospf(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "ospf", 4))
    {
        argv += optind;
        argc -= optind;
        nemesis_ospf(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-rip", 11))
    {
        nemesis_rip(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "rip", 3))
    {
        argv += optind;
        argc -= optind;
        nemesis_rip(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-tcp", 11))
    {
        nemesis_tcp(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "tcp", 3))
    {
        argv += optind;
        argc -= optind;
        nemesis_tcp(argc, argv);
    }
    else if (!strncmp(avval, "nemesis-udp", 11))
    {
        nemesis_udp(argc, argv);
    }
    else if (argc > 1 && !strncmp(argv[1], "udp", 3))
    {
        argv += optind;
        argc -= optind;
        nemesis_udp(argc, argv);
    }
    else
        nemesis_usage(argv[0]);

    /* NOTREACHED */
    exit(0);
}

void nemesis_usage(char *arg)
{
    char *module = "NEMESIS";

    nemesis_maketitle(title, module, version);
    nemesis_printtitle((const char *)title);

    printf("NEMESIS Usage:\n  %s [mode] [options]\n\n", arg);
    printf("NEMESIS modes:\n"
           "  arp\n"                       
           "  dns\n"
           "  ethernet\n"
           "  icmp\n"
           "  igmp\n"
           "  ip\n"
           "  ospf (currently non-functional)\n"
           "  rip\n"
           "  tcp\n"
           "  udp\n\n");
    printf("NEMESIS options: \n"
           "  To display options, specify a mode with the option \"help\".\n");
    putchar('\n');
    exit(1);
}