mention what BN_ULONG is

1 files changed, 10 insertions, 3 deletions

diff --git a/src/lib/libcrypto/man/BN_zero.3 b/src/lib/libcrypto/man/BN_zero.3
index aa3e8a0682..876e1c3fde 100644
--- a/src/lib/libcrypto/man/BN_zero.3
+++ b/src/lib/libcrypto/man/BN_zero.3
@@ -1,11 +1,11 @@
-.\" $OpenBSD: BN_zero.3,v 1.11 2021/12/19 16:18:34 schwarze Exp $
+.\" $OpenBSD: BN_zero.3,v 1.12 2022/11/22 19:02:07 schwarze Exp $
 .\" full merge up to: OpenSSL a528d4f0 Oct 27 13:40:11 2015 -0400
 .\" selective merge up to: OpenSSL b713c4ff Jan 22 14:41:09 2018 -0500
 .\"
 .\" This file is a derived work.
 .\" The changes are covered by the following Copyright and license:
 .\"
-.\" Copyright (c) 2021 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2021, 2022 Ingo Schwarze <schwarze@openbsd.org>
 .\"
 .\" Permission to use, copy, modify, and distribute this software for any
 .\" purpose with or without fee is hereby granted, provided that the above
@@ -67,7 +67,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 .\" OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: December 19 2021 $
+.Dd $Mdocdate: November 22 2022 $
 .Dt BN_ZERO 3
 .Os
 .Sh NAME
@@ -109,6 +109,13 @@
 .Vt BN_ULONG
 is a macro that expands to an unsigned integral type optimized
 for the most efficient implementation on the local platform.
+It is
+.Vt unsigned long Pq = Vt uint64_t
+on
+.Dv _LP64
+platforms and
+.Vt unsigned int Pq = Vt uint32_t
+elsewhere.
 .Pp
 .Fn BN_zero_ex ,
 .Fn BN_one ,