bn_mod_inverse tweaks

Provide prototype that is hidden behind LIBRESSL_INTERNAL for portable
and or in result for future extensibility.

diff --git a/regress/lib/libcrypto/bn/bn_mod_inverse.c b/regress/lib/libcrypto/bn/bn_mod_inverse.c
index b73d050..f05e78c 100644 (file)
--- a/regress/lib/libcrypto/bn/bn_mod_inverse.c
+++ b/regress/lib/libcrypto/bn/bn_mod_inverse.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: bn_mod_inverse.c,v 1.1 2023/06/03 21:20:29 tb Exp $ */
+/*     $OpenBSD: bn_mod_inverse.c,v 1.2 2023/06/04 07:14:47 tb Exp $ */
 
 /*
  * Copyright (c) 2023 Theo Buehler <tb@openbsd.org>
@@ -21,6 +21,8 @@
 
 #include <openssl/bn.h>
 
+BIGNUM *BN_mod_inverse(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
+
 static const struct mod_inv_test {
        const char *i;
        const char *a;
@@ -379,7 +381,7 @@ main(void)
 {
        int failed = 0;
 
-       failed = test_bn_mod_inverse();
+       failed |= test_bn_mod_inverse();
 
        return failed;
 }