Unify description of the obsolete ENGINE parameter

This uses the same language in most manuals mentioning the obsolete
ENGINE parameters. Make it clear that it is always ignored and that
NULL should be passed. Always call it engine instead of a mix of e
pe, impl, eng.

1 files changed, 8 insertions, 3 deletions

diff --git a/src/lib/libcrypto/man/HMAC.3 b/src/lib/libcrypto/man/HMAC.3
index fa853bb4a1..dc32a111be 100644
--- a/src/lib/libcrypto/man/HMAC.3
+++ b/src/lib/libcrypto/man/HMAC.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: HMAC.3,v 1.21 2024/05/26 09:54:16 tb Exp $
+.\" $OpenBSD: HMAC.3,v 1.22 2024/07/21 08:36:43 tb Exp $
 .\" full merge up to: OpenSSL crypto/hmac a528d4f0 Oct 27 13:40:11 2015 -0400
 .\" selective merge up to: OpenSSL man3/HMAC b3696a55 Sep 2 09:35:50 2017 -0400
 .\"
@@ -52,7 +52,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 .\" OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: May 26 2024 $
+.Dd $Mdocdate: July 21 2024 $
 .Dt HMAC 3
 .Os
 .Sh NAME
@@ -97,7 +97,7 @@
 .Fa "const void *key"
 .Fa "int key_len"
 .Fa "const EVP_MD *md"
-.Fa "ENGINE *impl"
+.Fa "ENGINE *engine"
 .Fc
 .Ft int
 .Fo HMAC_Init
@@ -223,6 +223,11 @@ nor the same as the previous digest used by
 .Fa ctx ,
 then an error is returned because reuse of an existing key with a
 different digest is not supported.
+The
+.Fa ENGINE *engine
+argument is always ignored and passing
+.Dv NULL
+is recommended.
 .Pp
 .Fn HMAC_Init
 is a deprecated wrapper around