static void
done(isc_task_t *task, isc_event_t *event) {
dns_byaddrevent_t *bevent;
dns_byaddr_t *byaddr;
dns_name_t *name;
REQUIRE(event->ev_type == DNS_EVENT_BYADDRDONE);
bevent = (dns_byaddrevent_t *)event;
UNUSED(task);
printf("byaddr event result = %s\n",
isc_result_totext(bevent->result));
if (bevent->result == ISC_R_SUCCESS) {
for (name = ISC_LIST_HEAD(bevent->names);
name != NULL;
name = ISC_LIST_NEXT(name, link)) {
char text[DNS_NAME_FORMATSIZE];
dns_name_format(name, text, sizeof(text));
printf("%s\n", text);
}
}
byaddr = event->ev_sender;
dns_byaddr_destroy(&byaddr);
isc_event_free(&event);
isc_app_shutdown();
}
static void
byaddr_done(isc_task_t *task, isc_event_t *event) {
ns_lwdclient_t *client;
ns_lwdclientmgr_t *cm;
dns_byaddrevent_t *bevent;
int lwres;
lwres_buffer_t lwb;
dns_name_t *name;
isc_result_t result;
lwres_result_t lwresult;
isc_region_t r;
isc_buffer_t b;
lwres_gnbaresponse_t *gnba;
isc_uint16_t naliases;
UNUSED(task);
lwb.base = NULL;
client = event->ev_arg;
cm = client->clientmgr;
INSIST(client->byaddr == (dns_byaddr_t *)event->ev_sender);
bevent = (dns_byaddrevent_t *)event;
gnba = &client->gnba;
ns_lwdclient_log(50, "byaddr event result = %s",
isc_result_totext(bevent->result));
result = bevent->result;
if (result != ISC_R_SUCCESS) {
dns_byaddr_destroy(&client->byaddr);
isc_event_free(&event);
bevent = NULL;
if (client->na.family != AF_INET6 ||
(client->options & DNS_BYADDROPT_IPV6INT) != 0) {
if (result == DNS_R_NCACHENXDOMAIN ||
result == DNS_R_NCACHENXRRSET ||
result == DNS_R_NXDOMAIN ||
result == DNS_R_NXRRSET)
lwresult = LWRES_R_NOTFOUND;
else
lwresult = LWRES_R_FAILURE;
ns_lwdclient_errorpktsend(client, lwresult);
return;
}
/*
* Fall back to ip6.int reverse if the default ip6.arpa
* fails.
*/
client->options |= DNS_BYADDROPT_IPV6INT;
start_byaddr(client);
return;
}
for (name = ISC_LIST_HEAD(bevent->names);
name != NULL;
name = ISC_LIST_NEXT(name, link))
{
b = client->recv_buffer;
result = dns_name_totext(name, ISC_TRUE, &client->recv_buffer);
if (result != ISC_R_SUCCESS)
goto out;
ns_lwdclient_log(50, "found name '%.*s'",
(int)(client->recv_buffer.used - b.used),
(char *)(b.base) + b.used);
if (gnba->realname == NULL) {
gnba->realname = (char *)(b.base) + b.used;
gnba->realnamelen = client->recv_buffer.used - b.used;
} else {
naliases = gnba->naliases;
if (naliases >= LWRES_MAX_ALIASES)
break;
gnba->aliases[naliases] = (char *)(b.base) + b.used;
gnba->aliaslen[naliases] =
client->recv_buffer.used - b.used;
gnba->naliases++;
}
}
dns_byaddr_destroy(&client->byaddr);
isc_event_free(&event);
/*
* Render the packet.
*/
client->pkt.recvlength = LWRES_RECVLENGTH;
client->pkt.authtype = 0; /* XXXMLG */
client->pkt.authlength = 0;
client->pkt.result = LWRES_R_SUCCESS;
lwres = lwres_gnbaresponse_render(cm->lwctx,
gnba, &client->pkt, &lwb);
if (lwres != LWRES_R_SUCCESS)
goto out;
r.base = lwb.base;
r.length = lwb.used;
client->sendbuf = r.base;
client->sendlength = r.length;
result = ns_lwdclient_sendreply(client, &r);
if (result != ISC_R_SUCCESS)
goto out;
NS_LWDCLIENT_SETSEND(client);
return;
out:
if (client->byaddr != NULL)
dns_byaddr_destroy(&client->byaddr);
if (lwb.base != NULL)
lwres_context_freemem(cm->lwctx,
lwb.base, lwb.length);
if (event != NULL)
isc_event_free(&event);
}