Improve diagnostics

diff --git a/gost_crypt.c b/gost_crypt.c
index 54b4d9517324975bbcc1926ce2ed03083f0f4607..eaf173bc7481bde6789e2f4837a71da3c9cb2222 100644 (file)
--- a/gost_crypt.c
+++ b/gost_crypt.c
@@ -489,6 +489,8 @@ const struct gost_cipher_info *get_encryption_params(ASN1_OBJECT *obj)
         if (nid == NID_undef) {
             GOSTerr(GOST_F_GET_ENCRYPTION_PARAMS,
                     GOST_R_INVALID_CIPHER_PARAM_OID);
+            ERR_add_error_data(3, "Unsupported CRYPT_PARAMS='",
+                params, "' specified in environment or in config");
             return NULL;
         }
     } else {