lwaddr.c

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00001 /*
00002  * Copyright (C) 2004, 2005, 2007, 2008, 2014  Internet Systems Consortium, Inc. ("ISC")
00003  * Copyright (C) 2000, 2001  Internet Software Consortium.
00004  *
00005  * Permission to use, copy, modify, and/or distribute this software for any
00006  * purpose with or without fee is hereby granted, provided that the above
00007  * copyright notice and this permission notice appear in all copies.
00008  *
00009  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
00010  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
00011  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
00012  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
00013  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
00014  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
00015  * PERFORMANCE OF THIS SOFTWARE.
00016  */
00017 
00018 /* $Id: lwaddr.c,v 1.10 2008/01/11 23:46:56 tbox Exp $ */
00019 
00020 /*! \file */
00021 
00022 #include <config.h>
00023 
00024 #include <string.h>
00025 
00026 #include <isc/result.h>
00027 #include <isc/netaddr.h>
00028 #include <isc/sockaddr.h>
00029 
00030 #include <lwres/lwres.h>
00031 
00032 #include <named/lwaddr.h>
00033 
00034 /*%
00035  * Convert addresses from lwres to isc format.
00036  */
00037 isc_result_t
00038 lwaddr_netaddr_fromlwresaddr(isc_netaddr_t *na, lwres_addr_t *la) {
00039         if (la->family != LWRES_ADDRTYPE_V4 && la->family != LWRES_ADDRTYPE_V6)
00040                 return (ISC_R_FAMILYNOSUPPORT);
00041 
00042         if (la->family == LWRES_ADDRTYPE_V4) {
00043                 struct in_addr ina;
00044                 memmove(&ina.s_addr, la->address, 4);
00045                 isc_netaddr_fromin(na, &ina);
00046         } else {
00047                 struct in6_addr ina6;
00048                 memmove(&ina6.s6_addr, la->address, 16);
00049                 isc_netaddr_fromin6(na, &ina6);
00050         }
00051         return (ISC_R_SUCCESS);
00052 }
00053 
00054 isc_result_t
00055 lwaddr_sockaddr_fromlwresaddr(isc_sockaddr_t *sa, lwres_addr_t *la,
00056                               in_port_t port)
00057 {
00058         isc_netaddr_t na;
00059         isc_result_t result;
00060 
00061         result = lwaddr_netaddr_fromlwresaddr(&na, la);
00062         if (result != ISC_R_SUCCESS)
00063                 return (result);
00064         isc_sockaddr_fromnetaddr(sa, &na, port);
00065         return (ISC_R_SUCCESS);
00066 }
00067 
00068 /*%
00069  * Convert addresses from isc to lwres format.
00070  */
00071 
00072 isc_result_t
00073 lwaddr_lwresaddr_fromnetaddr(lwres_addr_t *la, isc_netaddr_t *na) {
00074         if (na->family != AF_INET && na->family != AF_INET6)
00075                 return (ISC_R_FAMILYNOSUPPORT);
00076 
00077         if (na->family == AF_INET) {
00078                 la->family = LWRES_ADDRTYPE_V4;
00079                 la->length = 4;
00080                 memmove(la->address, &na->type.in, 4);
00081         } else {
00082                 la->family = LWRES_ADDRTYPE_V6;
00083                 la->length = 16;
00084                 memmove(la->address, &na->type.in6, 16);
00085         }
00086         return (ISC_R_SUCCESS);
00087 }
00088 
00089 isc_result_t
00090 lwaddr_lwresaddr_fromsockaddr(lwres_addr_t *la, isc_sockaddr_t *sa) {
00091         isc_netaddr_t na;
00092         isc_netaddr_fromsockaddr(&na, sa);
00093         return (lwaddr_lwresaddr_fromnetaddr(la, &na));
00094 }

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