From 1536057d4a357f28ba27407cc2294527f85b8fd4 Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@yahoo.com>
Date: Sun, 30 Jul 2017 00:51:06 +0200
Subject: Fix tcp checksum computation in pcap save

---
 src/monitor-gui.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/monitor-gui.cc b/src/monitor-gui.cc
index 0670b80..ea2132c 100644
--- a/src/monitor-gui.cc
+++ b/src/monitor-gui.cc
@@ -1389,7 +1389,7 @@ private:
       sum += (data[i * 2] << 8) | data[i * 2 + 1];
     }
     if (size % 2) sum += data[size - 1] << 8;
-    return ~size;
+    return ~sum;
   }
 #else  // HAVE_PCAP
   static bool is_pcap(std::string const&) {
-- 
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