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/*
* Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Address handling routines */
#ifndef _ADDR_H
#define _ADDR_H
#include <sys/socket.h>
#include <netinet/in.h>
struct xaddr {
sa_family_t af;
union {
struct in_addr v4;
struct in6_addr v6;
u_int8_t addr8[16];
u_int16_t addr16[8];
u_int32_t addr32[4];
} xa; /* 128-bit address */
u_int32_t scope_id; /* iface scope id for v6 */
#define v4 xa.v4
#define v6 xa.v6
#define addr8 xa.addr8
#define addr16 xa.addr16
#define addr32 xa.addr32
};
int addr_unicast_masklen(int af);
int addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa,
socklen_t *len, u_int16_t port);
int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa);
int addr_netmask(int af, u_int l, struct xaddr *n);
int addr_hostmask(int af, u_int l, struct xaddr *n);
int addr_invert(struct xaddr *n);
int addr_pton(const char *p, struct xaddr *n);
int addr_sa_pton(const char *h, const char *s, struct sockaddr *sa,
socklen_t slen);
int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l);
int addr_ntop(const struct xaddr *n, char *p, size_t len);
int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b);
int addr_cmp(const struct xaddr *a, const struct xaddr *b);
int addr_is_all0s(const struct xaddr *n);
int addr_host_is_all0s(const struct xaddr *n, u_int masklen);
int addr_netmatch(const struct xaddr *host, const struct xaddr *net,
u_int masklen);
#endif /* _ADDR_H */
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