00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
245 lines
6.5 KiB
C
245 lines
6.5 KiB
C
/* $NetBSD: sockaddr.h,v 1.5 2014/12/10 04:38:00 christos Exp $ */
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/*
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* Copyright (C) 2004-2007, 2009, 2012 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 1998-2003 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Id: sockaddr.h,v 1.57 2009/01/18 23:48:14 tbox Exp */
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#ifndef ISC_SOCKADDR_H
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#define ISC_SOCKADDR_H 1
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/*! \file isc/sockaddr.h */
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#include <isc/lang.h>
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#include <isc/net.h>
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#include <isc/types.h>
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#ifdef ISC_PLATFORM_HAVESYSUNH
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#include <sys/un.h>
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#endif
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struct isc_sockaddr {
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union {
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struct sockaddr sa;
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struct sockaddr_in sin;
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struct sockaddr_in6 sin6;
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struct sockaddr_storage ss;
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#ifdef ISC_PLATFORM_HAVESYSUNH
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struct sockaddr_un sunix;
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#endif
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} type;
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unsigned int length; /* XXXRTH beginning? */
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ISC_LINK(struct isc_sockaddr) link;
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};
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typedef ISC_LIST(struct isc_sockaddr) isc_sockaddrlist_t;
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#define ISC_SOCKADDR_CMPADDR 0x0001 /*%< compare the address
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* sin_addr/sin6_addr */
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#define ISC_SOCKADDR_CMPPORT 0x0002 /*%< compare the port
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* sin_port/sin6_port */
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#define ISC_SOCKADDR_CMPSCOPE 0x0004 /*%< compare the scope
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* sin6_scope */
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#define ISC_SOCKADDR_CMPSCOPEZERO 0x0008 /*%< when comparing scopes
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* zero scopes always match */
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ISC_LANG_BEGINDECLS
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isc_boolean_t
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isc_sockaddr_compare(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
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unsigned int flags);
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/*%<
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* Compare the elements of the two address ('a' and 'b') as specified
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* by 'flags' and report if they are equal or not.
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*
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* 'flags' is set from ISC_SOCKADDR_CMP*.
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*/
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isc_boolean_t
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isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b);
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/*%<
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* Return ISC_TRUE iff the socket addresses 'a' and 'b' are equal.
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*/
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isc_boolean_t
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isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b);
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/*%<
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* Return ISC_TRUE iff the address parts of the socket addresses
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* 'a' and 'b' are equal, ignoring the ports.
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*/
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isc_boolean_t
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isc_sockaddr_eqaddrprefix(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
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unsigned int prefixlen);
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/*%<
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* Return ISC_TRUE iff the most significant 'prefixlen' bits of the
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* socket addresses 'a' and 'b' are equal, ignoring the ports.
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* If 'b''s scope is zero then 'a''s scope will be ignored.
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*/
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unsigned int
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isc_sockaddr_hash(const isc_sockaddr_t *sockaddr, isc_boolean_t address_only);
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/*%<
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* Return a hash value for the socket address 'sockaddr'. If 'address_only'
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* is ISC_TRUE, the hash value will not depend on the port.
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*
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* IPv6 addresses containing mapped IPv4 addresses generate the same hash
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* value as the equivalent IPv4 address.
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*/
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void
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isc_sockaddr_any(isc_sockaddr_t *sockaddr);
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/*%<
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* Return the IPv4 wildcard address.
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*/
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void
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isc_sockaddr_any6(isc_sockaddr_t *sockaddr);
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/*%<
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* Return the IPv6 wildcard address.
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*/
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void
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isc_sockaddr_anyofpf(isc_sockaddr_t *sockaddr, int family);
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/*%<
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* Set '*sockaddr' to the wildcard address of protocol family
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* 'family'.
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*
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* Requires:
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* \li 'family' is AF_INET or AF_INET6.
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*/
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void
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isc_sockaddr_fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
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in_port_t port);
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/*%<
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* Construct an isc_sockaddr_t from an IPv4 address and port.
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*/
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void
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isc_sockaddr_fromin6(isc_sockaddr_t *sockaddr, const struct in6_addr *ina6,
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in_port_t port);
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/*%<
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* Construct an isc_sockaddr_t from an IPv6 address and port.
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*/
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void
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isc_sockaddr_v6fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
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in_port_t port);
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/*%<
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* Construct an IPv6 isc_sockaddr_t representing a mapped IPv4 address.
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*/
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void
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isc_sockaddr_fromnetaddr(isc_sockaddr_t *sockaddr, const isc_netaddr_t *na,
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in_port_t port);
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/*%<
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* Construct an isc_sockaddr_t from an isc_netaddr_t and port.
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*/
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int
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isc_sockaddr_pf(const isc_sockaddr_t *sockaddr);
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/*%<
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* Get the protocol family of 'sockaddr'.
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*
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* Requires:
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*
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*\li 'sockaddr' is a valid sockaddr with an address family of AF_INET
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* or AF_INET6.
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*
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* Returns:
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*
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*\li The protocol family of 'sockaddr', e.g. PF_INET or PF_INET6.
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*/
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void
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isc_sockaddr_setport(isc_sockaddr_t *sockaddr, in_port_t port);
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/*%<
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* Set the port of 'sockaddr' to 'port'.
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*/
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in_port_t
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isc_sockaddr_getport(const isc_sockaddr_t *sockaddr);
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/*%<
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* Get the port stored in 'sockaddr'.
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*/
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isc_result_t
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isc_sockaddr_totext(const isc_sockaddr_t *sockaddr, 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 will include both the IP address (v4 or v6) and the port.
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* The text is null terminated, but the terminating null is not
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* part of the buffer's used region.
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*
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* Returns:
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* \li ISC_R_SUCCESS
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* \li ISC_R_NOSPACE The text or the null termination did not fit.
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*/
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void
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isc_sockaddr_format(const isc_sockaddr_t *sa, char *array, unsigned int size);
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/*%<
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* Format a human-readable representation of the socket address '*sa'
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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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isc_boolean_t
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isc_sockaddr_ismulticast(const isc_sockaddr_t *sa);
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/*%<
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* Returns #ISC_TRUE if the address is a multicast address.
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*/
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isc_boolean_t
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isc_sockaddr_isexperimental(const isc_sockaddr_t *sa);
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/*
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* Returns ISC_TRUE if the address is a experimental (CLASS E) address.
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*/
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isc_boolean_t
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isc_sockaddr_islinklocal(const isc_sockaddr_t *sa);
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/*%<
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* Returns ISC_TRUE if the address is a link local address.
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*/
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isc_boolean_t
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isc_sockaddr_issitelocal(const isc_sockaddr_t *sa);
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/*%<
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* Returns ISC_TRUE if the address is a sitelocal address.
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*/
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isc_result_t
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isc_sockaddr_frompath(isc_sockaddr_t *sockaddr, const char *path);
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/*
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* Create a UNIX domain sockaddr that refers to path.
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*
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* Returns:
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* \li ISC_R_NOSPACE
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* \li ISC_R_NOTIMPLEMENTED
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* \li ISC_R_SUCCESS
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*/
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#define ISC_SOCKADDR_FORMATSIZE \
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sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:XXX.XXX.XXX.XXX%SSSSSSSSSS#YYYYY")
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/*%<
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* Minimum size of array to pass to isc_sockaddr_format().
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*/
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ISC_LANG_ENDDECLS
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#endif /* ISC_SOCKADDR_H */
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