better socket connection error handling

src/main.py

@@ -28,15 +28,14 @@ def main():
 
     # open TCP connection to server
     with socket() as sock:
+        sock.settimeout(args.socket_timeout or 30)
         try:
             sock.connect((RCON_ADDRESS, RCON_PORT))
-        except:
+        except OSError: # OSError is the parent of a few different errors we want to gracefully catch here
             print(f"{GRY} Connection to server failed. {RST}")
             print(f"{GRY} Please check the server hostname and port, then try again. {RST}")
             exit(1)
 
-        sock.settimeout(args.socket_timeout or 30)
-
         # login attempts
         login_success = login(sock, RCON_PASSWORD)
         while (not login_success):