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1.1.6

    1: /*
    2:  *  $Id: get_addr.c,v 1.1.1.2 2013/07/22 11:54:41 misho Exp $
    3:  *
    4:  *  libnet 1.1
    5:  *  get_addr.c - Retrieve the MAC and IP address of an interface
    6:  *
    7:  *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
    8:  *  All rights reserved.
    9:  *
   10:  * Redistribution and use in source and binary forms, with or without
   11:  * modification, are permitted provided that the following conditions
   12:  * are met:
   13:  * 1. Redistributions of source code must retain the above copyright
   14:  *    notice, this list of conditions and the following disclaimer.
   15:  * 2. Redistributions in binary form must reproduce the above copyright
   16:  *    notice, this list of conditions and the following disclaimer in the
   17:  *    documentation and/or other materials provided with the distribution.
   18:  *
   19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29:  * SUCH DAMAGE.
   30:  *
   31:  */
   32: 
   33: #if (HAVE_CONFIG_H)
   34: #include "../include/config.h"
   35: #endif
   36: #include "./libnet_test.h"
   37: #ifdef __WIN32__
   38: #include "../include/win32/getopt.h"
   39: #endif
   40: 
   41: int
   42: main(int argc, char *argv[])
   43: {
   44:     int c;
   45:     u_long i;
   46:     libnet_t *l;
   47:     char *device = NULL;
   48:     struct libnet_ether_addr *e;
   49:     char errbuf[LIBNET_ERRBUF_SIZE];
   50: 
   51:     printf("libnet 1.1 address getter\n");
   52: 
   53:     while ((c = getopt(argc, argv, "i:")) != EOF)
   54:     {
   55:         switch (c)
   56:         {
   57:             case 'i':
   58:                 device = optarg;
   59:                 break;
   60:             default:
   61:                 exit(EXIT_FAILURE);
   62:         }
   63:     }
   64: 
   65:     /*
   66:      *  Initialize the library.  Root priviledges are required.
   67:      */
   68:     l = libnet_init(
   69:             LIBNET_LINK,                            /* injection type */
   70:             device,                                 /* network interface */
   71:             errbuf);                                /* errbuf */
   72: 
   73:     if (l == NULL)
   74:     {
   75:         fprintf(stderr, "libnet_init() failed: %s", errbuf);
   76:         exit(EXIT_FAILURE);
   77:     }
   78: 
   79:     printf("Interface:\t%s\n", libnet_getdevice(l));
   80:     e = libnet_get_hwaddr(l);
   81:     if (e == NULL)
   82:     {
   83:         fprintf(stderr, "Can't get hardware address: %s\n", libnet_geterror(l));
   84:     }
   85:     else
   86:     {
   87:         printf("MAC address:\t");
   88:         for (c = 0; c < 6; c++)
   89:         {
   90:             printf("%2.2x", e->ether_addr_octet[c]);
   91:             if (c != 5)
   92:             {
   93:                 printf(":");
   94:             }
   95:         }
   96:         printf("\n");
   97:     }
   98: 
   99:     i = libnet_get_ipaddr4(l);
  100:     if (i == -1)
  101:     {
  102:         fprintf(stderr, "Can't get ip address: %s\n", libnet_geterror(l));
  103:     }
  104:     else
  105:     {
  106:         printf("IP  address:\t");
  107:         printf("%s\n", libnet_addr2name4(i, LIBNET_DONT_RESOLVE));
  108:     }
  109:     exit(EXIT_SUCCESS);
  110: }
  111: 
  112: /* EOF */