socket: fix for errors on pipe close in Windows (#3099)

Need to return data, not size. By returning an empty string, EOF will be detected properly since `len()` will be `0`. Fixes #3098. Signed-off-by: Milas Bowman <[email protected]>
docker · Feb 22, 2023 · f846232 · f846232
1 parent 7cd7458
commit f846232
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docker/utils/socket.py b/docker/utils/socket.py
@@ -49,7 +49,7 @@ def read(socket, n=4096):
         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
+            return ''
         raise