static int
do_directtcp_accept(
XferElementGlue *self,
int *socketp)
{
int sock;
g_assert(*socketp != -1);
if ((sock = interruptible_accept(*socketp, NULL, NULL,
prolong_accept, self)) == -1) {
/* if the accept was interrupted due to a cancellation, then do not
* add a further error message */
if (errno == 0 && XFER_ELEMENT(self)->cancelled)
return -1;
xfer_cancel_with_error(XFER_ELEMENT(self),
_("Error accepting incoming connection: %s"), strerror(errno));
wait_until_xfer_cancelled(XFER_ELEMENT(self)->xfer);
return -1;
}
/* close the listening socket now, for good measure */
close(*socketp);
*socketp = -1;
g_debug("do_directtcp_accept: %d", sock);
return sock;
}
int
stream_accept(
int server_socket,
int timeout,
size_t sendsize,
size_t recvsize)
{
time_t timeout_time;
int connected_socket;
int save_errno;
in_port_t port;
assert(server_socket >= 0);
/* set the time we want to stop accepting */
timeout_time = time(NULL) + timeout;
while(1) {
addrlen = (socklen_t_equiv)sizeof(sockaddr_union);
connected_socket = interruptible_accept(server_socket,
(struct sockaddr *)&addr,
&addrlen, stream_accept_prolong,
&timeout_time);
if(connected_socket < 0) {
if (errno == 0) {
g_debug(plural(_("stream_accept: timeout after %d second"),
_("stream_accept: timeout after %d seconds"),
timeout),
timeout);
errno = ETIMEDOUT;
return -1;
}
break;
}
g_debug(_("stream_accept: connection from %s"),
str_sockaddr(&addr));
/*
* Make certain we got an inet connection and that it is not
* from port 20 (a favorite unauthorized entry tool).
*/
if (SU_GET_FAMILY(&addr) == AF_INET
#ifdef WORKING_IPV6
|| SU_GET_FAMILY(&addr) == AF_INET6
#endif
){
port = SU_GET_PORT(&addr);
if (port != (in_port_t)20) {
try_socksize(connected_socket, SO_SNDBUF, sendsize);
try_socksize(connected_socket, SO_RCVBUF, recvsize);
return connected_socket;
} else {
g_debug(_("remote port is %u: ignored"),
(unsigned int)port);
}
} else {
#ifdef WORKING_IPV6
g_debug(_("family is %d instead of %d(AF_INET)"
" or %d(AF_INET6): ignored"),
SU_GET_FAMILY(&addr),
AF_INET, AF_INET6);
#else
g_debug(_("family is %d instead of %d(AF_INET)"
": ignored"),
SU_GET_FAMILY(&addr),
AF_INET);
#endif
}
aclose(connected_socket);
}
save_errno = errno;
g_debug(_("stream_accept: accept() failed: %s"),
strerror(save_errno));
errno = save_errno;
return -1;
}
