1 /* $NetBSD: getifname.c,v 1.2 2012/07/22 14:27:36 darrenr Exp $ */
2
3 /*
4 * Copyright (C) 2012 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * Id: getifname.c,v 1.1.1.2 2012/07/22 13:44:38 darrenr Exp $
9 */
10
11 #include "ipf.h"
12
13 #include "kmem.h"
14
15 /*
16 * Given a pointer to an interface in the kernel, return a pointer to a
17 * string which is the interface name.
18 */
19 #if 0
20 char *getifname(ptr)
21 struct ifnet *ptr;
22 {
23 #if SOLARIS || defined(__hpux)
24 # if SOLARIS
25 # include <sys/mutex.h>
26 # include <sys/condvar.h>
27 # endif
28 # ifdef __hpux
29 # include "compat.h"
30 # endif
31 # include "../pfil/qif.h"
32 char *ifname;
33 qif_t qif;
34
35 if ((void *)ptr == (void *)-1)
36 return "!";
37 if (ptr == NULL)
38 return "-";
39
40 if (kmemcpy((char *)&qif, (u_long)ptr, sizeof(qif)) == -1)
41 return "X";
42 ifname = strdup(qif.qf_name);
43 if ((ifname != NULL) && (*ifname == '\0')) {
44 free(ifname);
45 return "!";
46 }
47 return ifname;
48 #else
49 # if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
50 defined(__OpenBSD__) || \
51 (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
52 #else
53 char buf[LIFNAMSIZ];
54 int len;
55 # endif
56 struct ifnet netif;
57
58 if ((void *)ptr == (void *)-1)
59 return "!";
60 if (ptr == NULL)
61 return "-";
62
63 if (kmemcpy((char *)&netif, (u_long)ptr, sizeof(netif)) == -1)
64 return "X";
65 # if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
66 defined(__OpenBSD__) || defined(linux) || \
67 (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
68 return strdup(netif.if_xname);
69 # else
70 if (kstrncpy(buf, (u_long)netif.if_name, sizeof(buf)) == -1)
71 return "X";
72 if (netif.if_unit < 10)
73 len = 2;
74 else if (netif.if_unit < 1000)
75 len = 3;
76 else if (netif.if_unit < 10000)
77 len = 4;
78 else
79 len = 5;
80 buf[sizeof(buf) - len] = '\0';
81 sprintf(buf + strlen(buf), "%d", netif.if_unit % 10000);
82 return strdup(buf);
83 # endif
84 #endif
85 }
86 #else
getifname(ptr)87 char *getifname(ptr)
88 struct ifnet *ptr;
89 {
90 ptr = ptr;
91 return "X";
92 }
93 #endif
94