1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
*
* Connection Manager
*
* Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/ethernet.h>
#include "inet.h"
char *inet_index2name(int index)
{
struct ifreq ifr;
int sk, err;
if (index < 0)
return NULL;
sk = socket(PF_INET, SOCK_DGRAM, 0);
if (sk < 0)
return NULL;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_ifindex = index;
err = ioctl(sk, SIOCGIFNAME, &ifr);
close(sk);
if (err < 0)
return NULL;
return strdup(ifr.ifr_name);
}
char *inet_index2ident(int index, const char *prefix)
{
struct ifreq ifr;
struct ether_addr *eth;
char *str;
int sk, err, len;
if (index < 0)
return NULL;
sk = socket(PF_INET, SOCK_DGRAM, 0);
if (sk < 0)
return NULL;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_ifindex = index;
err = ioctl(sk, SIOCGIFNAME, &ifr);
if (err == 0)
err = ioctl(sk, SIOCGIFHWADDR, &ifr);
close(sk);
if (err < 0)
return NULL;
len = prefix ? strlen(prefix) + 18 : 18;
str = malloc(len);
if (!str)
return NULL;
eth = (void *) &ifr.ifr_hwaddr.sa_data;
snprintf(str, len, "%s%02X_%02X_%02X_%02X_%02X_%02X",
prefix ? prefix : "",
eth->ether_addr_octet[0],
eth->ether_addr_octet[1],
eth->ether_addr_octet[2],
eth->ether_addr_octet[3],
eth->ether_addr_octet[4],
eth->ether_addr_octet[5]);
return str;
}
|