X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=utcp.c;h=186b63e90bba16798f7fe4d897c40e4c554cfd19;hb=a4e2223575a4b0659bcbffeb73e636d5ba5847bc;hp=f46cdf7f649f0ee4ef77b0c8ebe0a673d5f24af0;hpb=0325c97f314cbab10cf9fce374598502e43341e6;p=utcp

diff --git a/utcp.c b/utcp.c
index f46cdf7..186b63e 100644
--- a/utcp.c
+++ b/utcp.c
@@ -486,7 +486,6 @@ static void retransmit(struct utcp_connection *c) {
 			pkt->hdr.ack = c->rcv.nxt;
 			pkt->hdr.ctl = ACK;
 			uint32_t len = seqdiff(c->snd.nxt, c->snd.una);
-			fprintf(stderr, "retransmit %u %u %u\n", pkt->hdr.seq, pkt->hdr.ack, len);
 			if(c->state == FIN_WAIT_1)
 				len--;
 			if(len > utcp->mtu)
@@ -782,7 +781,6 @@ ssize_t utcp_recv(struct utcp *utcp, const void *data, size_t len) {
 			c->dupack++;
 			if(c->dupack == 3) {
 				debug("Triplicate ACK\n");
-				fprintf(stderr, "Triplicate ACK\n");
 				//TODO: Resend one packet and go to fast recovery mode. See RFC 6582.
 				//We do a very simple variant here; reset the nxt pointer to the last acknowledged packet from the peer.
 				//This will cause us to start retransmitting, but at the same speed as the incoming ACKs arrive,
@@ -1176,7 +1174,10 @@ size_t utcp_get_sndbuf(struct utcp_connection *c) {
 }
 
 size_t utcp_get_sndbuf_free(struct utcp_connection *c) {
-	return buffer_free(&c->sndbuf);
+	if(c->state == ESTABLISHED || c->state == CLOSE_WAIT)
+		return buffer_free(&c->sndbuf);
+	else
+		return 0;
 }
 
 void utcp_set_sndbuf(struct utcp_connection *c, size_t size) {