EC_GROUP_check(): use accessor rather than reaching into the group

The API will be removed soon. This prepares moving it to its only consumer.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/lib/libcrypto/ec/ec_lib.c b/src/lib/libcrypto/ec/ec_lib.c
index 5bfa16df3c..f906054603 100644
--- a/src/lib/libcrypto/ec/ec_lib.c
+++ b/src/lib/libcrypto/ec/ec_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lib.c,v 1.111 2025/01/11 15:26:07 tb Exp $ */
+/* $OpenBSD: ec_lib.c,v 1.112 2025/01/21 17:01:25 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -667,6 +667,7 @@ EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx_in)
 {
         BN_CTX *ctx;
         EC_POINT *point = NULL;
+        const EC_POINT *generator;
         const BIGNUM *order;
         int ret = 0;
 
@@ -680,11 +681,11 @@ EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx_in)
                 goto err;
         }
 
-        if (group->generator == NULL) {
+        if ((generator = EC_GROUP_get0_generator(group)) == NULL) {
                 ECerror(EC_R_UNDEFINED_GENERATOR);
                 goto err;
         }
-        if (EC_POINT_is_on_curve(group, group->generator, ctx) <= 0) {
+        if (EC_POINT_is_on_curve(group, generator, ctx) <= 0) {
                 ECerror(EC_R_POINT_IS_NOT_ON_CURVE);
                 goto err;
         }