Annotation of embedaddon/libnet/sample/get_addr.c, revision 1.1.1.1
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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