From: Alan T. DeKok <aland@freeradius.org>
Date: Fri, 2 Apr 2021 12:56:26 +0000 (-0400)
Subject: gracefully handle closed connections
X-Git-Tag: release_3_0_22~121
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8b6be282a02b63b7c715ceb1d4d091778ee17a6e;p=thirdparty%2Ffreeradius-server.git

gracefully handle closed connections
---

diff --git a/src/lib/packet.c b/src/lib/packet.c
index d19c4c0522..acba8d9f01 100644
--- a/src/lib/packet.c
+++ b/src/lib/packet.c
@@ -924,6 +924,10 @@ RADIUS_PACKET *fr_packet_list_recv(fr_packet_list_t *pl, fd_set *set)
 #ifdef WITH_TCP
 		if (pl->sockets[start].proto == IPPROTO_TCP) {
 			packet = fr_tcp_recv(pl->sockets[start].sockfd, 0);
+			if (!packet) {
+				fr_strerror_printf("TCP connection has been closed");
+				return NULL;
+			}
 
 			/*
 			 *	We always know src/dst ip/port for TCP