2 * Copyright (C) 1998-2002 Internet Software Consortium.
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.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
9 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
10 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
11 * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
13 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
14 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
15 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: netaddr.h,v 1.21 2002/04/03 06:38:35 marka Exp $ */
21 #define ISC_NETADDR_H 1
25 #include <isc/types.h>
26 #include "ntp_rfc2553.h"
41 isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b);
44 isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
45 unsigned int prefixlen);
47 * Compare the 'prefixlen' most significant bits of the network
48 * addresses 'a' and 'b'. Return ISC_TRUE if they are equal,
53 isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp);
55 * Convert a netmask in 's' into a prefix length in '*lenp'.
56 * The mask should consist of zero or more '1' bits in the most
57 * most significant part of the address, followed by '0' bits.
58 * If this is not the case, ISC_R_MASKNONCONTIG is returned.
66 isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target);
68 * Append a text representation of 'sockaddr' to the buffer 'target'.
69 * The text is NOT null terminated. Handles IPv4 and IPv6 addresses.
73 * ISC_R_NOSPACE The text or the null termination did not fit.
74 * ISC_R_FAILURE Unspecified failure
78 isc_netaddr_format(const isc_netaddr_t *na, char *array, unsigned int size);
80 * Format a human-readable representation of the network address '*na'
81 * into the character array 'array', which is of size 'size'.
82 * The resulting string is guaranteed to be null-terminated.
85 #define ISC_NETADDR_FORMATSIZE \
86 sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:XXX.XXX.XXX.XXX")
88 * Minimum size of array to pass to isc_netaddr_format().
92 isc_netaddr_fromsockaddr(isc_netaddr_t *netaddr, const isc_sockaddr_t *source);
95 isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina);
98 isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6);
101 isc_netaddr_any(isc_netaddr_t *netaddr);
103 * Return the IPv4 wildcard address.
107 isc_netaddr_any6(isc_netaddr_t *netaddr);
109 * Return the IPv6 wildcard address.
113 isc_netaddr_ismulticast(isc_netaddr_t *na);
115 * Returns ISC_TRUE if the address is a multicast address.
119 isc_netaddr_islinklocal(isc_netaddr_t *na);
121 * Returns ISC_TRUE if the address is a link local address.
125 isc_netaddr_issitelocal(isc_netaddr_t *na);
127 * Returns ISC_TRUE if the address is a site local address.
131 isc_netaddr_fromv4mapped(isc_netaddr_t *t, const isc_netaddr_t *s);
133 * Convert an IPv6 v4mapped address into an IPv4 address.
139 #endif /* ISC_NETADDR_H */