Test OBJ_obj2txt() with NULL and short buffers.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/regress/lib/libcrypto/objects/objectstest.c b/src/regress/lib/libcrypto/objects/objectstest.c
index 9f28b6329a..597373efd2 100644
--- a/src/regress/lib/libcrypto/objects/objectstest.c
+++ b/src/regress/lib/libcrypto/objects/objectstest.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: objectstest.c,v 1.4 2022/02/12 12:42:19 jsing Exp $ */
+/* $OpenBSD: objectstest.c,v 1.5 2022/02/20 13:47:53 jsing Exp $ */
 /*
  * Copyright (c) 2017, 2022 Joel Sing <jsing@openbsd.org>
  *
@@ -290,6 +290,17 @@ obj_oid_test(struct obj_test *ot)
                 goto failed;
         }
 
+        if ((OBJ_obj2txt(NULL, 0, obj, 1) != len)) {
+                fprintf(stderr, "FAIL: OBJ_obj2txt() with NULL buffer != %d\n",
+                    len);
+                goto failed;
+        }
+        if ((OBJ_obj2txt(buf, 3, obj, 1) != len)) {
+                fprintf(stderr, "FAIL: OBJ_obj2txt() with short buffer != %d\n",
+                    len);
+                goto failed;
+        }
+
         failed = 0;
 
  failed: