Abort when cleaning up fails

When a fatal error triggers during cleanup, another attempt will be made to
clean up, which will likely lead to the same fatal error.  So instead, bail out
when that happens.
src/patch.c (cleanup): Bail out when called recursively.
(main): There is no need to call output_files() before cleanup() as cleanup()
already does that.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/patch.c b/src/patch.c
index 4616a48..02fd982 100644
--- a/src/patch.c
+++ b/src/patch.c
@@ -685,7 +685,6 @@ main (int argc, char **argv)
     }
     if (outstate.ofp && (ferror (outstate.ofp) || fclose (outstate.ofp) != 0))
       write_fatal ();
-    output_files (NULL);
     cleanup ();
     delete_files ();
     if (somefailed)
@@ -1991,7 +1990,6 @@ void
 fatal_exit (int sig)
 {
   cleanup ();
-
   if (sig)
     exit_with_signal (sig);
 
@@ -2011,6 +2009,12 @@ remove_if_needed (char const *name, bool *needs_removal)
 static void
 cleanup (void)
 {
+  static bool already_cleaning_up;
+
+  if (already_cleaning_up)
+    return;
+  already_cleaning_up = true;
+
   remove_if_needed (TMPINNAME, &TMPINNAME_needs_removal);
   remove_if_needed (TMPOUTNAME, &TMPOUTNAME_needs_removal);
   remove_if_needed (TMPPATNAME, &TMPPATNAME_needs_removal);