diff options
Diffstat (limited to 'lib/udp.c')
-rw-r--r-- | lib/udp.c | 34 |
1 files changed, 14 insertions, 20 deletions
@@ -1,5 +1,5 @@ /* Copyright 2011 NORDUnet A/S. All rights reserved. - See LICENSE for licensing information. */ + See LICENSE for licensing information. */ #if defined HAVE_CONFIG_H #include <config.h> @@ -65,22 +65,22 @@ static void _evcb (evutil_socket_t fd, short what, void *user_data) { int err; + struct rs_packet *pkt = (struct rs_packet *) user_data; rs_debug (("%s: fd=%d what =", __func__, fd)); - if (what & EV_TIMEOUT) rs_debug ((" TIMEOUT")); + if (what & EV_TIMEOUT) rs_debug ((" TIMEOUT -- shouldn't happen!")); if (what & EV_READ) rs_debug ((" READ")); if (what & EV_WRITE) rs_debug ((" WRITE")); rs_debug (("\n")); + assert (pkt); + assert (pkt->conn); if (what & EV_READ) { /* Read a single UDP packet and stick it in USER_DATA. */ /* TODO: Verify that unsolicited packets are dropped. */ - struct rs_packet *pkt = (struct rs_packet *) user_data; ssize_t r = 0; - assert (pkt); - assert (pkt->conn); assert (pkt->rpkt->data); r = compat_recv (fd, pkt->rpkt->data, RS_MAX_PACKET_LEN, MSG_TRUNC); @@ -92,7 +92,7 @@ _evcb (evutil_socket_t fd, short what, void *user_data) /* FIXME: Really shouldn't happen since we've been told that fd is readable! */ rs_debug (("%s: EAGAIN reading UDP packet -- wot?")); - return; + goto err_out; } /* Hard error. */ @@ -100,23 +100,22 @@ _evcb (evutil_socket_t fd, short what, void *user_data) "%d: recv: %d (%s)", fd, sockerr, evutil_socket_error_to_string (sockerr)); event_del (pkt->conn->tev); - return; + goto err_out; } event_del (pkt->conn->tev); if (r < 20 || r > RS_MAX_PACKET_LEN) /* Short or long packet. */ { rs_err_conn_push (pkt->conn, RSE_INVALID_PKT, - "invalid packet length: %d", - pkt->rpkt->length); - return; + "invalid packet length: %d", r); + goto err_out; } pkt->rpkt->length = (pkt->rpkt->data[2] << 8) + pkt->rpkt->data[3]; err = nr_packet_ok (pkt->rpkt); if (err) { - rs_err_conn_push_fl (pkt->conn, err, __FILE__, __LINE__, + rs_err_conn_push_fl (pkt->conn, -err, __FILE__, __LINE__, "invalid packet"); - return; + goto err_out; } /* Hand over message to user. This changes ownership of pkt. Don't touch it afterwards -- it might have been freed. */ @@ -125,10 +124,6 @@ _evcb (evutil_socket_t fd, short what, void *user_data) } else if (what & EV_WRITE) { - struct rs_packet *pkt = (struct rs_packet *) user_data; - assert (pkt); - assert (pkt->conn); - if (!pkt->conn->is_connected) event_on_connect (pkt->conn, pkt); @@ -137,11 +132,10 @@ _evcb (evutil_socket_t fd, short what, void *user_data) if (pkt->conn->callbacks.sent_cb) pkt->conn->callbacks.sent_cb (pkt->conn->user_data); } + return; -#if defined (DEBUG) - if (what & EV_TIMEOUT) - rs_debug (("%s: timeout on UDP event, shouldn't happen\n", __func__)); -#endif + err_out: + rs_conn_disconnect (pkt->conn); } int |