hcrypto: import libtommath v1.2.0

lib/hcrypto/libtommath/bn_mp_reduce_setup.c

@@ -1,34 +1,17 @@
-#include <tommath.h>
+#include "tommath_private.h"
 #ifdef BN_MP_REDUCE_SETUP_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
 
 /* pre-calculate the value required for Barrett reduction
  * For a given modulus "b" it calulates the value required in "a"
  */
-int mp_reduce_setup (mp_int * a, mp_int * b)
+mp_err mp_reduce_setup(mp_int *a, const mp_int *b)
 {
-  int     res;
-
-  if ((res = mp_2expt (a, b->used * 2 * DIGIT_BIT)) != MP_OKAY) {
-    return res;
-  }
-  return mp_div (a, b, a, NULL);
+   mp_err err;
+   if ((err = mp_2expt(a, b->used * 2 * MP_DIGIT_BIT)) != MP_OKAY) {
+      return err;
+   }
+   return mp_div(a, b, a, NULL);
 }
 #endif
-
-/* $Source: /cvs/libtom/libtommath/bn_mp_reduce_setup.c,v $ */
-/* $Revision: 1.4 $ */
-/* $Date: 2006/12/28 01:25:13 $ */