int
bufferevent_socket_connect(struct bufferevent *bev,
struct sockaddr *sa, int socklen)
{
struct bufferevent_private *bufev_p =
EVUTIL_UPCAST(bev, struct bufferevent_private, bev);
evutil_socket_t fd;
int r = 0;
int result=-1;
int ownfd = 0;
bufferevent_incref_and_lock_(bev);
if (!bufev_p)
goto done;
fd = bufferevent_getfd(bev);
if (fd < 0) {
if (!sa)
goto done;
fd = evutil_socket_(sa->sa_family,
SOCK_STREAM|EVUTIL_SOCK_NONBLOCK, 0);
if (fd < 0)
goto done;
ownfd = 1;
}
if (sa) {
#ifdef _WIN32
if (bufferevent_async_can_connect_(bev)) {
bufferevent_setfd(bev, fd);
r = bufferevent_async_connect_(bev, fd, sa, socklen);
if (r < 0)
goto freesock;
bufev_p->connecting = 1;
result = 0;
goto done;
} else
#endif
r = evutil_socket_connect_(&fd, sa, socklen);
if (r < 0)
goto freesock;
}
#ifdef _WIN32
/* ConnectEx() isn't always around, even when IOCP is enabled.
* Here, we borrow the socket object's write handler to fall back
* on a non-blocking connect() when ConnectEx() is unavailable. */
if (BEV_IS_ASYNC(bev)) {
event_assign(&bev->ev_write, bev->ev_base, fd,
EV_WRITE|EV_PERSIST, bufferevent_writecb, bev);
}
#endif
bufferevent_setfd(bev, fd);
if (r == 0) {
if (! be_socket_enable(bev, EV_WRITE)) {
bufev_p->connecting = 1;
result = 0;
goto done;
}
} else if (r == 1) {
/* The connect succeeded already. How very BSD of it. */
result = 0;
bufev_p->connecting = 1;
event_active(&bev->ev_write, EV_WRITE, 1);
} else {
/* The connect failed already. How very BSD of it. */
bufev_p->connection_refused = 1;
bufev_p->connecting = 1;
result = 0;
event_active(&bev->ev_write, EV_WRITE, 1);
}
goto done;
freesock:
bufferevent_run_eventcb_(bev, BEV_EVENT_ERROR);
if (ownfd)
evutil_closesocket(fd);
/* do something about the error? */
done:
bufferevent_decref_and_unlock_(bev);
return result;
}
static void
regress_pick_a_port(void *arg)
{
struct basic_test_data *data = arg;
struct event_base *base = data->base;
struct evconnlistener *listener1 = NULL, *listener2 = NULL;
struct sockaddr_in sin;
int count1 = 2, count2 = 1;
struct sockaddr_storage ss1, ss2;
struct sockaddr_in *sin1, *sin2;
ev_socklen_t slen1 = sizeof(ss1), slen2 = sizeof(ss2);
unsigned int flags =
LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE|LEV_OPT_CLOSE_ON_EXEC;
evutil_socket_t fd1 = -1, fd2 = -1, fd3 = -1;
if (data->setup_data && strstr((char*)data->setup_data, "ts")) {
flags |= LEV_OPT_THREADSAFE;
}
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(0x7f000001); /* 127.0.0.1 */
sin.sin_port = 0; /* "You pick!" */
listener1 = evconnlistener_new_bind(base, acceptcb, &count1,
flags, -1, (struct sockaddr *)&sin, sizeof(sin));
tt_assert(listener1);
listener2 = evconnlistener_new_bind(base, acceptcb, &count2,
flags, -1, (struct sockaddr *)&sin, sizeof(sin));
tt_assert(listener2);
tt_int_op(evconnlistener_get_fd(listener1), >=, 0);
tt_int_op(evconnlistener_get_fd(listener2), >=, 0);
tt_assert(getsockname(evconnlistener_get_fd(listener1),
(struct sockaddr*)&ss1, &slen1) == 0);
tt_assert(getsockname(evconnlistener_get_fd(listener2),
(struct sockaddr*)&ss2, &slen2) == 0);
tt_int_op(ss1.ss_family, ==, AF_INET);
tt_int_op(ss2.ss_family, ==, AF_INET);
sin1 = (struct sockaddr_in*)&ss1;
sin2 = (struct sockaddr_in*)&ss2;
tt_int_op(ntohl(sin1->sin_addr.s_addr), ==, 0x7f000001);
tt_int_op(ntohl(sin2->sin_addr.s_addr), ==, 0x7f000001);
tt_int_op(sin1->sin_port, !=, sin2->sin_port);
tt_ptr_op(evconnlistener_get_base(listener1), ==, base);
tt_ptr_op(evconnlistener_get_base(listener2), ==, base);
fd1 = fd2 = fd3 = -1;
evutil_socket_connect_(&fd1, (struct sockaddr*)&ss1, slen1);
evutil_socket_connect_(&fd2, (struct sockaddr*)&ss1, slen1);
evutil_socket_connect_(&fd3, (struct sockaddr*)&ss2, slen2);
#ifdef _WIN32
Sleep(100); /* XXXX this is a stupid stopgap. */
#endif
event_base_dispatch(base);
tt_int_op(count1, ==, 0);
tt_int_op(count2, ==, 0);
end:
if (fd1>=0)
EVUTIL_CLOSESOCKET(fd1);
if (fd2>=0)
EVUTIL_CLOSESOCKET(fd2);
if (fd3>=0)
EVUTIL_CLOSESOCKET(fd3);
if (listener1)
evconnlistener_free(listener1);
if (listener2)
evconnlistener_free(listener2);
}
