1 /* vi: set sw=4 ts=4: */
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License
5 * as published by the Free Software Foundation; either version
6 * 2 of the License, or (at your option) any later version.
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
11 #include <net/if_arp.h>
18 const char* FAST_FUNC
ll_addr_n2a(unsigned char *addr
, int alen
, int type
, char *buf
, int blen
)
24 && (type
== ARPHRD_TUNNEL
|| type
== ARPHRD_SIT
|| type
== ARPHRD_IPGRE
)
26 return inet_ntop(AF_INET
, addr
, buf
, blen
);
29 for (i
= 0; i
< alen
; i
++) {
31 snprintf(buf
+ l
, blen
, ":%02x"+1, addr
[i
]);
35 snprintf(buf
+ l
, blen
, ":%02x", addr
[i
]);
43 int FAST_FUNC
ll_addr_a2n(unsigned char *lladdr
, int len
, char *arg
)
47 if (strchr(arg
, '.')) {
49 if (get_addr_1(&pfx
, arg
, AF_INET
)) {
50 bb_error_msg("\"%s\" is invalid lladdr", arg
);
56 memcpy(lladdr
, pfx
.data
, 4);
60 for (i
= 0; i
< len
; i
++) {
62 char *cp
= strchr(arg
, ':');
67 if (sscanf(arg
, "%x", &temp
) != 1 || (temp
< 0 || temp
> 255)) {
68 bb_error_msg("\"%s\" is invalid lladdr", arg
);