src/gremlin.c

   1 /*
   2  * netsniff-ng - the packet sniffing beast
   3  * By Daniel Borkmann <daniel@netsniff-ng.org>
   4  * Copyright 2012 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,
   5  * Swiss federal institute of technology (ETH Zurich)
   6  * Subject to the GPL, version 2.
   7  */
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <getopt.h>
  12 #include <ctype.h>
  13
  14 #include "xmalloc.h"
  15 #include "die.h"
  16
  17 static const char *short_options = "vhm:b:";
  18
  19 static struct option long_options[] = {
  20         {"mgmt", required_argument, 0, 'm'},
  21         {"batch", required_argument, 0, 'b'},
  22         {"version", no_argument, 0, 'v'},
  23         {"help", no_argument, 0, 'h'},
  24         {0, 0, 0, 0}
  25 };
  26
  27 static void help(void)
  28 {
  29         printf("\ngremlin %s, a threaded packet beast with Cisco-cli\n",
  30                VERSION_STRING);
  31         printf("http://www.netsniff-ng.org\n\n");
  32         printf("Usage: gremlin [options]\n");
  33         printf("Options:\n");
  34         printf("  -m|--mgmt <dev>        Bound management netdev\n");
  35         printf("  -b|--batch <file>      Batch file to process\n");
  36         printf("  -v|--version           Print version\n");
  37         printf("  -h|--help              Print this help\n");
  38         printf("\n");
  39         printf("Examples:\n");
  40         printf("  gremlin --mgmt eth5\n");
  41         printf("  gremlin --batch cli-test.batch\n");
  42         printf("\n");
  43         printf("Note:\n");
  44         printf("  gremlin uses parts of Herbert Haas' legendary Mausezahn\n");
  45         printf("  traffic generator. Its backend was replaced for reasons of\n");
  46         printf("  better performance and its functionality was extended.\n");
  47         printf("\n");
  48         printf("Please report bugs to <bugs@netsniff-ng.org>\n");
  49         printf("Copyright (C) 2011-2012 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,\n");
  50         printf("Swiss federal institute of technology (ETH Zurich)\n");
  51         printf("License: GNU GPL version 2\n");
  52         printf("This is free software: you are free to change and redistribute it.\n");
  53         printf("There is NO WARRANTY, to the extent permitted by law.\n\n");
  54         die();
  55 }
  56
  57 static void version(void)
  58 {
  59         printf("\ngremlin %s, a threaded packet beast with Cisco-cli\n",
  60                VERSION_STRING);
  61         printf("http://www.netsniff-ng.org\n\n");
  62         printf("Please report bugs to <bugs@netsniff-ng.org>\n");
  63         printf("Copyright (C) 2011-2012 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,\n");
  64         printf("Swiss federal institute of technology (ETH Zurich)\n");
  65         printf("License: GNU GPL version 2\n");
  66         printf("This is free software: you are free to change and redistribute it.\n");
  67         printf("There is NO WARRANTY, to the extent permitted by law.\n\n");
  68         die();
  69 }
  70
  71 int main(int argc, char **argv)
  72 {
  73         int ret, c, opt_index;
  74         char *file = NULL;
  75         char *netdev = NULL;
  76
  77         if (argc == 1)
  78                 help();
  79
  80         while (argc > 2 && (c = getopt_long(argc, argv, short_options,
  81                 long_options, &opt_index)) != EOF) {
  82                 switch (c) {
  83                 case 'h':
  84                         help();
  85                         break;
  86                 case 'v':
  87                         version();
  88                         break;
  89                 case 'b':
  90                         file = xstrdup(optarg);
  91                         break;
  92                 case 'm':
  93                         netdev = xstrdup(optarg);
  94                         break;
  95                 case '?':
  96                         switch (optopt) {
  97                         case 'b':
  98                         case 'm':
  99                                 panic("Option -%c requires an argument!\n",
 100                                       optopt);
 101                         default:
 102                                 if (isprint(optopt))
 103                                         whine("Unknown option character "
 104                                               "`0x%X\'!\n", optopt);
 105                                 die();
 106                         }
 107                 default:
 108                         break;
 109                 }
 110         }
 111
 112         if (!file && !netdev)
 113                 help();
 114
 115         /* XXX do stuff */
 116
 117         free(file);
 118         free(netdev);
 119
 120         return ret;
 121 }