Annotation of embedaddon/libnet/sample/get_addr.c, revision 1.1
1.1 ! misho 1: /*
! 2: * $Id: get_addr.c,v 1.3 2004/01/03 20:31:01 mike 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 */
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