tolerate 'batch' systems that mess with stdin (#23596)

* tolerate 'batch' systems taht mess with stdin

fixes #23541

* have pause on windows tolerate devnull

* tuplie

(cherry picked from commit 586fcae398)

lib/ansible/executor/process/worker.py

@@ -77,6 +77,7 @@ class WorkerProcess(multiprocessing.Process):
         self._variable_manager  = variable_manager
         self._shared_loader_obj = shared_loader_obj
 
+        if sys.stdin.isatty():
             # dupe stdin, if we have one
             self._new_stdin = sys.stdin
             try:
@@ -89,9 +90,12 @@ class WorkerProcess(multiprocessing.Process):
                         # not a valid file descriptor, so we just rely on
                         # using the one that was passed in
                         pass
-        except ValueError:
+            except (AttributeError, ValueError):
                 # couldn't get stdin's fileno, so we just carry on
                 pass
+        else:
+            # set to /dev/null
+            self._new_stdin = os.devnull
 
     def run(self):
         '''

lib/ansible/plugins/action/pause.py

@@ -123,8 +123,9 @@ class ActionModule(ActionBase):
             fd = None
             try:
                 fd = self._connection._new_stdin.fileno()
-            except ValueError:
-                # someone is using a closed file descriptor as stdin
+            except (ValueError, AttributeError):
+                # ValueError: someone is using a closed file descriptor as stdin
+                # AttributeError: someone is using a null file descriptor as stdin on windoez
                 pass
             if fd is not None:
                 if isatty(fd):