document V_ASN1_NULL

diff --git a/lib/libcrypto/man/ASN1_NULL_new.3 b/lib/libcrypto/man/ASN1_NULL_new.3
index a5162aa..b4d2428 100644 (file)
--- a/lib/libcrypto/man/ASN1_NULL_new.3
+++ b/lib/libcrypto/man/ASN1_NULL_new.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: ASN1_NULL_new.3,v 1.2 2021/11/22 19:32:32 job Exp $
+.\" $OpenBSD: ASN1_NULL_new.3,v 1.3 2021/12/09 18:42:35 schwarze Exp $
 .\"
 .\" Copyright (c) 2021 Ingo Schwarze <schwarze@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: November 22 2021 $
+.Dd $Mdocdate: December 9 2021 $
 .Dt ASN1_NULL_NEW 3
 .Os
 .Sh NAME
@@ -47,6 +47,10 @@ obtained from
 .Fn ASN1_NULL_new
 to this function.
 But even if a valid pointer is passed, that pointer does not become invalid.
+.Pp
+The ASN.1 NULL type is also represented by the
+.Dv V_ASN1_NULL
+type identifier constant.
 .Sh SEE ALSO
 .Xr ASN1_item_new 3 ,
 .Xr d2i_ASN1_NULL 3