1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_cmp.c b/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_cmp.c
new file mode 100644
index 00000000000..ced48409680
--- /dev/null
+++ b/third_party/heimdal/lib/hcrypto/libtommath/bn_mp_cmp.c
@@ -0,0 +1,26 @@
+#include "tommath_private.h"
+#ifdef BN_MP_CMP_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+/* compare two ints (signed)*/
+mp_ord mp_cmp(const mp_int *a, const mp_int *b)
+{
+   /* compare based on sign */
+   if (a->sign != b->sign) {
+      if (a->sign == MP_NEG) {
+         return MP_LT;
+      } else {
+         return MP_GT;
+      }
+   }
+
+   /* compare digits */
+   if (a->sign == MP_NEG) {
+      /* if negative compare opposite direction */
+      return mp_cmp_mag(b, a);
+   } else {
+      return mp_cmp_mag(a, b);
+   }
+}
+#endif