replace magic numbers with errno.*

copyparty/httpsrv.py

@@ -35,6 +35,7 @@ from .util import (
     FHC,
     Garda,
     Magician,
+    E_SCK,
     min_ex,
     shut_socket,
     spack,
@@ -332,7 +333,7 @@ class HttpSrv(object):
             cli.run()
 
         except (OSError, socket.error) as ex:
-            if ex.errno not in [10038, 10054, 107, 57, 49, 9]:
+            if ex.errno not in E_SCK:
                 self.log(
                     "%s %s" % addr,
                     "run({}): {}".format(fno, ex),
@@ -354,13 +355,7 @@ class HttpSrv(object):
                         "shut({}): {}".format(fno, ex),
                         c="1;30",
                     )
-                if ex.errno not in [10038, 10054, 107, 57, 49, 9]:
-                    # 10038 No longer considered a socket
-                    # 10054 Foribly closed by remote
-                    #   107 Transport endpoint not connected
-                    #    57 Socket is not connected
-                    #    49 Can't assign requested address (wifi down)
-                    #     9 Bad file descriptor
+                if ex.errno not in E_SCK:
                     raise
             finally:
                 with self.mutex: