/** Free a connection object.
* \param c the object to free
*/
void
free_conn(struct conn *c)
{
if (c->local_bev)
bufferevent_free(c->local_bev);
if (c->remote_bev)
bufferevent_free(c->remote_bev);
if (c->remote_host)
free(c->remote_host);
if (c->remote_ip)
free(c->remote_ip);
if (c->resolver_req)
evdns_cancel_request(resolver, c->resolver_req);
free(c);
}
static void
search_cancel_server_cb(struct evdns_server_request *req, void *data)
{
const char *question;
if (req->nquestions != 1)
TT_DIE(("Only handling one question at a time; got %d",
req->nquestions));
question = req->questions[0]->name;
TT_BLATHER(("got question, %s", question));
tt_assert(request_count > 0);
tt_assert(!evdns_server_request_respond(req, 3));
if (!--request_count)
evdns_cancel_request(NULL, current_req);
end:
;
}
static void
dns_server(void)
{
evutil_socket_t sock=-1;
struct sockaddr_in my_addr;
struct evdns_server_port *port=NULL;
struct in_addr resolve_addr;
struct in6_addr resolve_addr6;
struct evdns_base *base=NULL;
struct evdns_request *req=NULL;
dns_ok = 1;
base = evdns_base_new(NULL, 0);
/* Add ourself as the only nameserver, and make sure we really are
* the only nameserver. */
evdns_base_nameserver_ip_add(base, "127.0.0.1:35353");
tt_int_op(evdns_base_count_nameservers(base), ==, 1);
/* Now configure a nameserver port. */
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock<0) {
tt_abort_perror("socket");
}
evutil_make_socket_nonblocking(sock);
memset(&my_addr, 0, sizeof(my_addr));
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(35353);
my_addr.sin_addr.s_addr = htonl(0x7f000001UL);
if (bind(sock, (struct sockaddr*)&my_addr, sizeof(my_addr)) < 0) {
tt_abort_perror("bind");
}
port = evdns_add_server_port(sock, 0, dns_server_request_cb, NULL);
/* Send some queries. */
evdns_base_resolve_ipv4(base, "zz.example.com", DNS_QUERY_NO_SEARCH,
dns_server_gethostbyname_cb, NULL);
evdns_base_resolve_ipv6(base, "zz.example.com", DNS_QUERY_NO_SEARCH,
dns_server_gethostbyname_cb, NULL);
resolve_addr.s_addr = htonl(0xc0a80b0bUL); /* 192.168.11.11 */
evdns_base_resolve_reverse(base, &resolve_addr, 0,
dns_server_gethostbyname_cb, NULL);
memcpy(resolve_addr6.s6_addr,
"\xff\xf0\x00\x00\x00\x00\xaa\xaa"
"\x11\x11\x00\x00\x00\x00\xef\xef", 16);
evdns_base_resolve_reverse_ipv6(base, &resolve_addr6, 0,
dns_server_gethostbyname_cb, (void*)6);
req = evdns_base_resolve_ipv4(base,
"drop.example.com", DNS_QUERY_NO_SEARCH,
dns_server_gethostbyname_cb, (void*)(char*)90909);
evdns_cancel_request(base, req);
event_dispatch();
tt_assert(dns_got_cancel);
test_ok = dns_ok;
end:
if (port)
evdns_close_server_port(port);
if (sock >= 0)
EVUTIL_CLOSESOCKET(sock);
if (base)
evdns_base_free(base, 0);
}