socket: handle npipe close on Windows (docker/docker-py#3056)

Fixes docker/docker-py#3045 Cherry-picked from docker/docker-py@3002298 Co-authored-by: Nick Santos <[email protected]>
felixfontein · Nov 30, 2022 · c73a6dd · c73a6dd
1 parent c2d84ef
commit c73a6dd
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/plugins/module_utils/_api/utils/socket.py b/plugins/module_utils/_api/utils/socket.py
@@ -29,6 +29,11 @@ class SocketError(Exception):
     pass
 
 
+# NpipeSockets have their own error types
+# pywintypes.error: (109, 'ReadFile', 'The pipe has been ended.')
+NPIPE_ENDED = 109
+
+
 def read(socket, n=4096):
     """
     Reads at most n bytes from socket
@@ -48,6 +53,15 @@ def read(socket, n=4096):
     except EnvironmentError as e:
         if e.errno not in recoverable_errors:
             raise
+    except Exception as e:
+        is_pipe_ended = (isinstance(socket, NpipeSocket) and
+                         len(e.args) > 0 and
+                         e.args[0] == NPIPE_ENDED)
+        if is_pipe_ended:
+            # npipes don't support duplex sockets, so we interpret
+            # a PIPE_ENDED error as a close operation (0-length read).
+            return 0
+        raise
 
 
 def read_exactly(socket, n):