From e9a50d9f2521d72b1920cc46ca00fe241a5e46d6 Mon Sep 17 00:00:00 2001
From: Robert McMahon <rjmcmahon@rjmcmahon.com>
Date: Mon, 16 Feb 2026 17:44:33 -0800
Subject: [PATCH] Fix timestamp formatting for pcap: convert EDecimal to float
 for fromtimestamp

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 wifi_monitor.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/wifi_monitor.py b/wifi_monitor.py
index 4700ce4..76d6de0 100755
--- a/wifi_monitor.py
+++ b/wifi_monitor.py
@@ -419,8 +419,12 @@ class CaptureAnalyzer:
     @staticmethod
     def _format_timestamp(pkt):
         """Format packet timestamp as HH:MM:SS.mmm."""
-        if hasattr(pkt, 'time') and pkt.time:
-            dt = datetime.fromtimestamp(pkt.time)
+        if hasattr(pkt, 'time') and pkt.time is not None:
+            try:
+                ts = float(pkt.time)  # pcap can give EDecimal; fromtimestamp needs int/float
+            except (TypeError, ValueError):
+                return "N/A"
+            dt = datetime.fromtimestamp(ts)
             return dt.strftime("%H:%M:%S.%f")[:-3]  # Truncate to milliseconds
         return "N/A"