+++ /dev/null
---- swab.c.bsdnew 2009-11-18 18:24:38.000000000 -0800
-+++ swab.c 2009-11-18 18:40:17.000000000 -0800
-@@ -45,6 +45,8 @@ swab(const void * __restrict from, void
- int n;
- char *fp, *tp;
-
-+ if (len <= 0)
-+ return;
- n = len >> 1;
- fp = (char *)from;
- tp = (char *)to;