From: Guus Sliepen <guus@meshlink.io>
Date: Mon, 18 May 2020 21:22:06 +0000 (+0200)
Subject: Reset closed connections if there is incoming data.
X-Git-Url: https://git.meshlink.io/?a=commitdiff_plain;h=93dfd8a6689a3f176d460bd757a466b61b29181d;p=meshlink

Reset closed connections if there is incoming data.
---

diff --git a/src/utcp.c b/src/utcp.c
index d2a929bf..f81150bf 100644
--- a/src/utcp.c
+++ b/src/utcp.c
@@ -2052,6 +2052,11 @@ void utcp_abort_all_connections(struct utcp *utcp) {
 }
 
 int utcp_close(struct utcp_connection *c) {
+	if(c->rcvbuf.used) {
+		fprintf(stderr, "UTCP channel closed with stuff in receive buffer\n");
+		return reset_connection(c) ? 0 : -1;
+	}
+
 	if(utcp_shutdown(c, SHUT_RDWR) && errno != ENOTCONN) {
 		return -1;
 	}