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jcs's openbsd hax
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1/*
2 * Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17/* Address handling routines */
18
19#ifndef _ADDR_H
20#define _ADDR_H
21
22#include <sys/socket.h>
23#include <netinet/in.h>
24
25struct xaddr {
26 sa_family_t af;
27 union {
28 struct in_addr v4;
29 struct in6_addr v6;
30 u_int8_t addr8[16];
31 u_int16_t addr16[8];
32 u_int32_t addr32[4];
33 } xa; /* 128-bit address */
34 u_int32_t scope_id; /* iface scope id for v6 */
35#define v4 xa.v4
36#define v6 xa.v6
37#define addr8 xa.addr8
38#define addr16 xa.addr16
39#define addr32 xa.addr32
40};
41
42int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa);
43int addr_netmask(int af, u_int l, struct xaddr *n);
44int addr_pton(const char *p, struct xaddr *n);
45int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l);
46int addr_ntop(const struct xaddr *n, char *p, size_t len);
47int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
48int addr_cmp(const struct xaddr *a, const struct xaddr *b);
49int addr_host_to_all1s(struct xaddr *a, u_int masklen);
50int addr_netmatch(const struct xaddr *host, const struct xaddr *net,
51 u_int masklen);
52void addr_increment(struct xaddr *a);
53#endif /* _ADDR_H */