ecdh_cms_encrypt: tweak handling of ecdh_nid

ok jsing

diff --git a/lib/libcrypto/ec/ec_ameth.c b/lib/libcrypto/ec/ec_ameth.c
index 120d075..e87cc17 100644 (file)
--- a/lib/libcrypto/ec/ec_ameth.c
+++ b/lib/libcrypto/ec/ec_ameth.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_ameth.c,v 1.60 2024/04/17 13:57:58 tb Exp $ */
+/* $OpenBSD: ec_ameth.c,v 1.61 2024/04/17 13:58:55 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2006.
  */
@@ -958,10 +958,9 @@ ecdh_cms_encrypt(CMS_RecipientInfo *ri)
        if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, EVP_PKEY_ECDH_KDF_X9_63) <= 0)
                goto err;
 
-       ecdh_nid = EVP_PKEY_CTX_get_ecdh_cofactor_mode(pctx);
-       if (ecdh_nid < 0)
+       if ((ecdh_nid = EVP_PKEY_CTX_get_ecdh_cofactor_mode(pctx)) < 0)
                goto err;
-       else if (ecdh_nid == 0)
+       if (ecdh_nid == 0)
                ecdh_nid = NID_dh_std_kdf;
        else if (ecdh_nid == 1)
                ecdh_nid = NID_dh_cofactor_kdf;