2 * Declarations of routines to fetch IPv4 and IPv6 addresses from a tvbuff
3 * and then mask out bits other than those covered by a prefix length
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #ifndef __ADDR_AND_MASK_H__
27 #define __ADDR_AND_MASK_H__
30 * These routines return PREFIX_LEN_OK on success, PREFIX_LEN_TOO_LONG if
31 * the prefix length is too long, and PREFIX_LEN_ZERO if the prefix length
35 #define PREFIX_LEN_OK 0
36 #define PREFIX_LEN_TOO_LONG 1
37 #define PREFIX_LEN_ZERO 2
39 extern int ipv4_addr_and_mask(tvbuff_t *tvb, int offset, guint8 *addr,
42 extern int ipv6_addr_and_mask(tvbuff_t *tvb, int offset,
43 struct e_in6_addr *addr, guint32 prefix_len);
45 #endif /* __ADDR_AND_MASK_H__ */