2 * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2001 Internet Software Consortium.
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: netaddr.h,v 1.18.2.2 2004/03/09 06:11:59 marka Exp $ */
21 #define ISC_NETADDR_H 1
25 #include <isc/types.h>
38 isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b);
41 isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
42 unsigned int prefixlen);
44 * Compare the 'prefixlen' most significant bits of the network
45 * addresses 'a' and 'b'. Return ISC_TRUE if they are equal,
50 isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp);
52 * Convert a netmask in 's' into a prefix length in '*lenp'.
53 * The mask should consist of zero or more '1' bits in the most
54 * most significant part of the address, followed by '0' bits.
55 * If this is not the case, ISC_R_MASKNONCONTIG is returned.
63 isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target);
65 * Append a text representation of 'sockaddr' to the buffer 'target'.
66 * The text is NOT null terminated. Handles IPv4 and IPv6 addresses.
70 * ISC_R_NOSPACE The text or the null termination did not fit.
71 * ISC_R_FAILURE Unspecified failure
75 isc_netaddr_format(isc_netaddr_t *na, char *array, unsigned int size);
77 * Format a human-readable representation of the network address '*na'
78 * into the character array 'array', which is of size 'size'.
79 * The resulting string is guaranteed to be null-terminated.
82 #define ISC_NETADDR_FORMATSIZE \
83 sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:XXX.XXX.XXX.XXX")
85 * Minimum size of array to pass to isc_netaddr_format().
89 isc_netaddr_fromsockaddr(isc_netaddr_t *netaddr, const isc_sockaddr_t *source);
92 isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina);
95 isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6);
98 isc_netaddr_any(isc_netaddr_t *netaddr);
100 * Return the IPv4 wildcard address.
104 isc_netaddr_any6(isc_netaddr_t *netaddr);
106 * Return the IPv6 wildcard address.
110 isc_netaddr_ismulticast(isc_netaddr_t *na);
112 * Returns ISC_TRUE if the address is a multicast address
116 isc_netaddr_isexperimental(isc_netaddr_t *na);
118 * Returns ISC_TRUE if the address is a experimental (CLASS E) address.
122 isc_netaddr_fromv4mapped(isc_netaddr_t *t, const isc_netaddr_t *s);
124 * Convert an IPv6 v4mapped address into an IPv4 address.
130 #endif /* ISC_NETADDR_H */