Handle NULL result of ERR_reason_error_string() in some apps

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13920)

1 files changed, 2 insertions, 9 deletions

diff --git a/apps/pkey.c b/apps/pkey.c
index 1a53447401..5cf0abe04b 100644
--- a/apps/pkey.c
+++ b/apps/pkey.c
@@ -258,15 +258,8 @@ int pkey_main(int argc, char **argv)
              * Note: at least for RSA keys if this function returns
              * -1, there will be no error reasons.
              */
-            unsigned long err;
-
-            BIO_printf(out, "Key is invalid\n");
-
-            while ((err = ERR_peek_error()) != 0) {
-                BIO_printf(out, "Detailed error: %s\n",
-                           ERR_reason_error_string(err));
-                ERR_get_error(); /* remove err from error stack */
-            }
+            BIO_printf(bio_err, "Key is invalid\n");
+            ERR_print_errors(bio_err);
             goto end;
         }
     }