92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
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* Copyright (C) 1998, 1999, 2000 Internet Software Consortium.
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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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifndef ISC_NETADDR_H
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#define ISC_NETADDR_H 1
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#include <isc/net.h>
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#include <isc/lang.h>
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#include <isc/types.h>
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ISC_LANG_BEGINDECLS
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struct isc_netaddr {
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unsigned int family;
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union {
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struct in_addr in;
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struct in6_addr in6;
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} type;
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};
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isc_boolean_t
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isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b);
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isc_boolean_t
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isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
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unsigned int prefixlen);
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/*
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* Compare the 'prefixlen' most significant bits of the network
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* addresses 'a' and 'b'. Return ISC_TRUE if they are equal,
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* ISC_FALSE if not.
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*/
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isc_result_t
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isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp);
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/*
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* Convert a netmask in 's' into a prefix length in '*lenp'.
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* The mask should consist of zero or more '1' bits in the most
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* most significant part of the address, followed by '0' bits.
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* If this is not the case, ISC_R_MASKNONCONTIG is returned.
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_MASKNONCONTIG
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*/
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isc_result_t
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isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target);
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/*
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* Append a text representation of 'sockaddr' to the buffer 'target'.
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* The text is NOT null terminated. Handles IPv4 and IPv6 addresses.
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOSPACE The text or the null termination did not fit.
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* ISC_R_FAILURE Unspecified failure
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*/
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void
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isc_netaddr_format(isc_netaddr_t *na, char *array, unsigned int size);
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/*
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* Format a human-readable representation of the network address '*na'
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* into the character array 'array', which is of size 'size'.
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* The resulting string is guaranteed to be null-terminated.
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*/
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void
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isc_netaddr_fromsockaddr(isc_netaddr_t *netaddr, const isc_sockaddr_t *source);
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void
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isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina);
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void
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isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6);
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ISC_LANG_ENDDECLS
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#endif /* ISC_NETADDR_H */
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