From c38d283cfada3eae4d32b278e9b473629d969675 Mon Sep 17 00:00:00 2001
From: Yaro Kasear <git@kasear.net>
Date: Thu, 10 Apr 2025 15:06:03 -0500
Subject: [PATCH] Initial pcap handling code.

---
 kismet_enrich_from_pcap.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/kismet_enrich_from_pcap.py b/kismet_enrich_from_pcap.py
index 1d6bf35..cd042f6 100644
--- a/kismet_enrich_from_pcap.py
+++ b/kismet_enrich_from_pcap.py
@@ -31,6 +31,26 @@ def analyze_pcap(pcapng_path, start_ts, end_ts):
 
 def main():
     args = parse_args()
+    cap = pyshark.FileCapture(
+        args.pcapng,
+        use_json=True,
+        include_raw=False,
+        keep_packets=False
+    )
+
+    # Checking if the pcapng file is valid
+    count = 0
+    try:
+        for packet in cap:
+            count += 1
+            if count > 0:
+                break
+    except Exception as e:
+        print(f"[!] Error reading pcapng file: {e}")
+        return
+    finally:
+        cap.close()
+
     with open(args.csv, newline='') as infile, open(args.output, 'w', newline='', encoding='utf-8') as outfile:
         reader = csv.DictReader(infile)
         fieldnames = reader.fieldnames + [