fishdescriptor: Actually tidy up actual2intended when closing

Otherwise we will probably try to move the new-defunct open-file
somewhere when we try to make the descriptor refer to the intended
open-file.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>

diff --git a/fishdescriptor/fishdescriptor b/fishdescriptor/fishdescriptor
index d583533c210faf64d351f1536af350fceafe887c..8955b462aae647e42dca30e1d65ece76069260fe 100755 (executable)
--- a/fishdescriptor/fishdescriptor
+++ b/fishdescriptor/fishdescriptor
@@ -129,6 +129,7 @@ def permute_fds_for_exec():
                 fdmap[inway_intended][0] = inway_moved
             os.dup2(actual, intended)
         os.close(actual)
+        del actual2intended[actual]
 
 def implement_exec(argl):
     if donor is not None: donor.detach()