Fixed compiler warnings in openssl plugin

src/libstrongswan/plugins/openssl/openssl_crl.c

@@ -185,7 +185,7 @@ METHOD(crl_t, create_enumerator, enumerator_t*,
 		free(enumerator);
 		return enumerator_create_empty();
 	}
-	enumerator->num = sk_X509_EXTENSION_num(enumerator->stack);
+	enumerator->num = sk_X509_REVOKED_num(enumerator->stack);
 	return &enumerator->public;
 }
 

src/libstrongswan/plugins/openssl/openssl_util.c

@@ -130,7 +130,7 @@ chunk_t openssl_asn1_obj2chunk(ASN1_OBJECT *asn1)
 {
 	if (asn1)
 	{
-		return chunk_create(asn1->data, asn1->length);
+		return chunk_create((u_char*)asn1->data, asn1->length);
 	}
 	return chunk_empty;
 }