From 713c85a72d3f1dd11b33e05657504aa4e5a67848 Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Fri, 11 Feb 2011 13:19:28 -0700
Subject: [PATCH] Handle HTCP read failures and small packets.

---
 src/htcp.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/htcp.cc b/src/htcp.cc
index 93ff7e9338..4d164d1230 100644
--- a/src/htcp.cc
+++ b/src/htcp.cc
@@ -1347,10 +1347,10 @@ htcpHandleMsg(char *buf, int sz, IpAddress &from)
     htcpDataHeader hdr;
     char *hbuf;
     int hsz;
-    assert (sz >= 0);
 
-    if ((size_t)sz < sizeof(htcpHeader)) {
-        debugs(31, 3, "htcpHandle: msg size less than htcpHeader size");
+    if (sz < 0 || (size_t)sz < sizeof(htcpHeader)) {
+        // These are highly likely to be attack packets. Should probably get a bigger warning.
+        debugs(31, 2, "htcpHandle: msg size less than htcpHeader size from " << from);
         return;
     }
 
-- 
2.47.2