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Refactor MAC vendor lookup to streamline vendor retrieval and improve debug logging

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This commit is contained in:
Yaro Kasear 2025-05-02 11:54:19 -05:00
parent 45b33dc48b
commit 1a884c8085
1 changed files with 6 additions and 12 deletions
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18
listener.py
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@ -323,9 +323,7 @@ def main():
def get_mac_vendor(mac):
prefix = mac.upper()[0:8].replace(":", "-")
print(f"[DEBUG] Looking up prefix: {prefix}")
if prefix in vendor_cache:
print(f"[DEBUG] Cached hit: {vendor_cache[prefix]}")
return vendor_cache[prefix]
try:
if not os.path.exists("oui.txt"):
@ -335,16 +333,12 @@ def get_mac_vendor(mac):
urllib.request.urlretrieve(url, "oui.txt")
with open("oui.txt", "r", encoding="utf-8", errors="ignore") as f:
for line in f:
print(repr(line))
if line.strip().endswith("(hex)"):
parts = line.split()
if len(parts) >= 3:
print(f"[DEBUG] Checking line: {parts}")
if parts[0] == prefix:
vendor = " ".join(parts[2:]).replace("(hex)", "").strip()
vendor_cache[prefix] = vendor
print(f"[DEBUG] Vendor found: {vendor}")
return vendor
if "(hex)" in line and prefix in line:
parts = line.strip().split()
if len(parts) >= 3 and parts[0] == prefix and parts[1] == "(hex)":
vendor = " ".join(parts[2:]).strip()
vendor_cache[prefix] = vendor
return vendor
except Exception as e:
print(f"[ERROR] Vendor lookup failed: {e}")
vendor_cache[prefix] = "Unknown"