FFI: Allow setting errno with ffi.errno(), too.

2011-05-09 11:51:19 +02:00
parent 868ecad32b
commit d9c1f771a7
2 changed files with 10 additions and 5 deletions
--- a/src/lib_ffi.c
+++ b/src/lib_ffi.c
@@ -545,7 +545,10 @@ LJLIB_CF(ffi_offsetof)

 LJLIB_CF(ffi_errno)
 {
-  setintV(L->top++, errno);
+  int err = errno;
+  if (L->top > L->base)
+    errno = ffi_checkint(L, 1);
+  setintV(L->top++, err);
  return 1;
 }