runtime: reject out-of-range HA_METRICS_PORT values

2026-09-15 22:27:20 +03:00
parent 319104641b
commit 9fda48f589
1 changed files with 3 additions and 1 deletions
@@ -86,7 +86,9 @@ lookupPort = do
  m <- lookupEnv "HA_METRICS_PORT"
  case m of
    Nothing -> pure 8124
-    Just s  -> maybe (fail ("HA_METRICS_PORT is not a number: " <> s)) pure (readMaybe s)
+    Just s  -> case readMaybe s of
+      Just p | p >= 1 && p <= 65535 -> pure p
+      _ -> fail ("HA_METRICS_PORT must be a port in 1..65535: " <> s)

 defaultMain :: IO ()
 defaultMain = withSocketsDo $ do