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