Handle bad port specification

2 files changed, 7 insertions, 3 deletions

diff --git a/TODO b/TODO
index 57c0056..a824a9f 100644
--- a/TODO
+++ b/TODO
@@ -1,5 +1,3 @@
-* Handle bad port specification.
-
 * Wrap long lines.
 
 * URL to Python.
diff --git a/miniircd b/miniircd
index 1e2a94c..0c02899 100755
--- a/miniircd
+++ b/miniircd
@@ -796,7 +796,13 @@ def main(argv):
         elif opt in ("-p", "--password"):
             password = val.lower()
         elif opt == "--ports":
-            ports = [int(x) for x in re.split("[,\s]+", val)]
+            ports = []
+            for port in re.split("[,\s]+", val):
+                try:
+                    ports.append(int(port))
+                except ValueError:
+                    sys.stderr.write("Bad port: \"%s\".\n" % port)
+                    sys.exit(1)
         elif opt in ("-v", "--verbose"):
             verbose = True
     server = Server(ports, password, verbose)