1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_abs.c b/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_abs.c
new file mode 100644
index 0000000..00900bb
--- /dev/null
+++ b/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_abs.c
@@ -0,0 +1,26 @@
+#include "tommath_private.h"
+#ifdef BN_MP_ABS_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+/* b = |a|
+ *
+ * Simple function copies the input and fixes the sign to positive
+ */
+mp_err mp_abs(const mp_int *a, mp_int *b)
+{
+   mp_err     err;
+
+   /* copy a to b */
+   if (a != b) {
+      if ((err = mp_copy(a, b)) != MP_OKAY) {
+         return err;
+      }
+   }
+
+   /* force the sign of b to positive */
+   b->sign = MP_ZPOS;
+
+   return MP_OKAY;
+}
+#endif