bin/named/lwaddr.c

	lwaddr.c revision 0c27b3fe77ac1d5094ba3521e8142d9e7973133f
/*
 * Copyright (C) 2000, 2001, 2004, 2005, 2007, 2008, 2014, 2016  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/* $Id: lwaddr.c,v 1.10 2008/01/11 23:46:56 tbox Exp $ */

/*! \file */

#include <config.h>

#include <string.h>

#include <isc/result.h>
#include <isc/netaddr.h>
#include <isc/sockaddr.h>

#include <lwres/lwres.h>

#include <named/lwaddr.h>

/*%
 * Convert addresses from lwres to isc format.
 */
isc_result_t
lwaddr_netaddr_fromlwresaddr(isc_netaddr_t *na, lwres_addr_t *la) {
    if (la->family != LWRES_ADDRTYPE_V4 && la->family != LWRES_ADDRTYPE_V6)
        return (ISC_R_FAMILYNOSUPPORT);

    if (la->family == LWRES_ADDRTYPE_V4) {
        struct in_addr ina;
        memmove(&ina.s_addr, la->address, 4);
        isc_netaddr_fromin(na, &ina);
    } else {
        struct in6_addr ina6;
        memmove(&ina6.s6_addr, la->address, 16);
        isc_netaddr_fromin6(na, &ina6);
    }
    return (ISC_R_SUCCESS);
}

isc_result_t
lwaddr_sockaddr_fromlwresaddr(isc_sockaddr_t *sa, lwres_addr_t *la,
                  in_port_t port)
{
    isc_netaddr_t na;
    isc_result_t result;

    result = lwaddr_netaddr_fromlwresaddr(&na, la);
    if (result != ISC_R_SUCCESS)
        return (result);
    isc_sockaddr_fromnetaddr(sa, &na, port);
    return (ISC_R_SUCCESS);
}

/*%
 * Convert addresses from isc to lwres format.
 */

isc_result_t
lwaddr_lwresaddr_fromnetaddr(lwres_addr_t *la, isc_netaddr_t *na) {
    if (na->family != AF_INET && na->family != AF_INET6)
        return (ISC_R_FAMILYNOSUPPORT);

    if (na->family == AF_INET) {
        la->family = LWRES_ADDRTYPE_V4;
        la->length = 4;
        memmove(la->address, &na->type.in, 4);
    } else {
        la->family = LWRES_ADDRTYPE_V6;
        la->length = 16;
        memmove(la->address, &na->type.in6, 16);
    }
    return (ISC_R_SUCCESS);
}

isc_result_t
lwaddr_lwresaddr_fromsockaddr(lwres_addr_t *la, isc_sockaddr_t *sa) {
    isc_netaddr_t na;
    isc_netaddr_fromsockaddr(&na, sa);
    return (lwaddr_lwresaddr_fromnetaddr(la, &na));
}