diff options
Diffstat (limited to 'addr.h')
| -rw-r--r-- | addr.h | 64 |
1 files changed, 64 insertions, 0 deletions
@@ -0,0 +1,64 @@ +/* + * 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_or(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_host_to_all0s(struct xaddr *a, u_int masklen); +int addr_host_to_all1s(struct xaddr *a, u_int masklen); +int addr_netmatch(const struct xaddr *host, const struct xaddr *net, + u_int masklen); +void addr_increment(struct xaddr *a); +#endif /* _ADDR_H */ |