openat: allow return of fd 0

[gnulib.git] / lib / openat-die.c

diff --git a/lib/openat-die.c b/lib/openat-die.c
index 677f3e0..a507eac 100644 (file)
--- a/lib/openat-die.c
+++ b/lib/openat-die.c
@@ -40,6 +40,11 @@ openat_save_fail (int errnum)
   abort ();
 }
 
+
+/* Exit with an error about failure to restore the working directory
+   during an openat emulation.  The caller must ensure that fd 2 is
+   not a just-opened fd, even when openat_safer is not in use.  */
+
 void
 openat_restore_fail (int errnum)
 {