src/openssl/ec.cpp: move helper functions/macros to internal.h and helpers.c files.

src/openssl/internal.h

@@ -0,0 +1,42 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2019-2023 EOS Sw/eden
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <openssl/ec.h>
+
+#ifndef LIBEOSIO_OPENSSL_INTERNAL_H
+#define LIBEOSIO_OPENSSL_INTERNAL_H
+
+#define EC_POINT_encode(group, point, buf, len, ctx) \
+	EC_POINT_point2oct((group), (point), POINT_CONVERSION_COMPRESSED, (buf), (len), (ctx))
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int calculate_pubkey(const EC_GROUP *group, const EC_KEY *ec_key, EC_POINT **point);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LIBEOSIO_OPENSSL_INTERNAL_H */