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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "mdns_common.h"
/*
* gethostby* functions for the hosts database. The hosts
* database stores IPv4 addresses only.
* mDNS query functions to perform the host lookup
* are in mdns/common/mdns_common.c file.
* _nss_mdns_hosts_constr is called to initialize
* the nsswitch backend data structures.
*/
static nss_status_t
getbyname(be, a)
mdns_backend_ptr_t be;
void *a;
{
struct mdns_querydata qdata;
char *hname;
(void) memset(&qdata, 0, sizeof (struct mdns_querydata));
qdata.argp = (nss_XbyY_args_t *)a;
hname = (char *)qdata.argp->key.name;
_nss_mdns_updatecfg(be);
return (_nss_mdns_querybyname(be, hname, AF_INET, &qdata));
}
/*ARGSUSED*/
static nss_status_t
getbyaddr(be, a)
mdns_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
struct in_addr addr;
struct mdns_querydata qdata;
char buffer[sizeof ("255.255.255.255.in-addr.arpa.")];
uint8_t *p;
(void) memset(&qdata, 0, sizeof (struct mdns_querydata));
qdata.argp = argp;
argp->h_errno = 0;
if ((argp->key.hostaddr.type != AF_INET) ||
(argp->key.hostaddr.len != sizeof (addr)))
return (NSS_NOTFOUND);
(void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr));
if (inet_ntop(AF_INET, (void *) &addr.s_addr,
(void *)qdata.paddrbuf,
sizeof (qdata.paddrbuf)) == NULL)
return (NSS_NOTFOUND);
qdata.af = AF_INET;
p = (uint8_t *)&addr.s_addr;
(void) snprintf(buffer, sizeof (buffer),
"%u.%u.%u.%u.in-addr.arpa.", p[3], p[2], p[1], p[0]);
_nss_mdns_updatecfg(be);
return (_nss_mdns_querybyaddr(be, buffer, qdata.af, &qdata));
}
/*ARGSUSED*/
static nss_status_t
_nss_mdns_getent(be, args)
mdns_backend_ptr_t be;
void *args;
{
return (NSS_UNAVAIL);
}
/*ARGSUSED*/
static nss_status_t
_nss_mdns_setent(be, dummy)
mdns_backend_ptr_t be;
void *dummy;
{
return (NSS_UNAVAIL);
}
/*ARGSUSED*/
static nss_status_t
_nss_mdns_endent(be, dummy)
mdns_backend_ptr_t be;
void *dummy;
{
return (NSS_UNAVAIL);
}
/*ARGSUSED*/
static nss_status_t
_nss_mdns_hosts_destr(be, dummy)
mdns_backend_ptr_t be;
void *dummy;
{
_nss_mdns_destr(be);
return (NSS_SUCCESS);
}
static mdns_backend_op_t host_ops[] = {
_nss_mdns_hosts_destr,
_nss_mdns_endent,
_nss_mdns_setent,
_nss_mdns_getent,
getbyname,
getbyaddr,
};
/*ARGSUSED*/
nss_backend_t *
_nss_mdns_hosts_constr(dummy1, dummy2, dummy3)
const char *dummy1, *dummy2, *dummy3;
{
return (_nss_mdns_constr(host_ops,
sizeof (host_ops) / sizeof (host_ops[0])));
}
/*ARGSUSED*/
nss_status_t
_nss_get_mdns_hosts_name(mdns_backend_ptr_t *be, void **bufp, size_t *sizep)
{
return (_nss_mdns_gethost_withttl(*bufp, *sizep, 0));
}
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