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/*
* Copyright (C) 1998-2002 Internet Software Consortium.
*
* 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 INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM 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.
*/
/* $Id: netaddr.h,v 1.21 2002/04/03 06:38:35 marka Exp $ */
#ifndef ISC_NETADDR_H
#define ISC_NETADDR_H 1
#include <isc/lang.h>
#include <isc/net.h>
#include <isc/types.h>
#include "ntp_rfc2553.h"
ISC_LANG_BEGINDECLS
struct isc_netaddr {
unsigned int family;
union {
struct in_addr in;
struct in6_addr in6;
} type;
};
isc_boolean_t
isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b);
isc_boolean_t
isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
unsigned int prefixlen);
/*
* Compare the 'prefixlen' most significant bits of the network
* addresses 'a' and 'b'. Return ISC_TRUE if they are equal,
* ISC_FALSE if not.
*/
isc_result_t
isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp);
/*
* Convert a netmask in 's' into a prefix length in '*lenp'.
* The mask should consist of zero or more '1' bits in the most
* most significant part of the address, followed by '0' bits.
* If this is not the case, ISC_R_MASKNONCONTIG is returned.
*
* Returns:
* ISC_R_SUCCESS
* ISC_R_MASKNONCONTIG
*/
isc_result_t
isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target);
/*
* Append a text representation of 'sockaddr' to the buffer 'target'.
* The text is NOT null terminated. Handles IPv4 and IPv6 addresses.
*
* Returns:
* ISC_R_SUCCESS
* ISC_R_NOSPACE The text or the null termination did not fit.
* ISC_R_FAILURE Unspecified failure
*/
void
isc_netaddr_format(const isc_netaddr_t *na, char *array, unsigned int size);
/*
* Format a human-readable representation of the network address '*na'
* into the character array 'array', which is of size 'size'.
* The resulting string is guaranteed to be null-terminated.
*/
#define ISC_NETADDR_FORMATSIZE \
sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:XXX.XXX.XXX.XXX")
/*
* Minimum size of array to pass to isc_netaddr_format().
*/
void
isc_netaddr_fromsockaddr(isc_netaddr_t *netaddr, const isc_sockaddr_t *source);
void
isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina);
void
isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6);
void
isc_netaddr_any(isc_netaddr_t *netaddr);
/*
* Return the IPv4 wildcard address.
*/
void
isc_netaddr_any6(isc_netaddr_t *netaddr);
/*
* Return the IPv6 wildcard address.
*/
isc_boolean_t
isc_netaddr_ismulticast(isc_netaddr_t *na);
/*
* Returns ISC_TRUE if the address is a multicast address.
*/
isc_boolean_t
isc_netaddr_islinklocal(isc_netaddr_t *na);
/*
* Returns ISC_TRUE if the address is a link local address.
*/
isc_boolean_t
isc_netaddr_issitelocal(isc_netaddr_t *na);
/*
* Returns ISC_TRUE if the address is a site local address.
*/
void
isc_netaddr_fromv4mapped(isc_netaddr_t *t, const isc_netaddr_t *s);
/*
* Convert an IPv6 v4mapped address into an IPv4 address.
*/
ISC_LANG_ENDDECLS
#endif /* ISC_NETADDR_H */
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