Document that X509_{NAME,REQ,REQ_INFO}_free() are all NULL safe.

From Ross L. Richardson

2 files changed, 19 insertions, 4 deletions

diff --git a/src/lib/libcrypto/man/X509_NAME_new.3 b/src/lib/libcrypto/man/X509_NAME_new.3
index 8a62d664fb..527e22272c 100644
--- a/src/lib/libcrypto/man/X509_NAME_new.3
+++ b/src/lib/libcrypto/man/X509_NAME_new.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: X509_NAME_new.3,v 1.5 2018/03/27 17:35:50 schwarze Exp $
+.\"     $OpenBSD: X509_NAME_new.3,v 1.6 2018/07/29 20:29:32 tb Exp $
 .\"
 .\" Copyright (c) 2016 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: March 27 2018 $
+.Dd $Mdocdate: July 29 2018 $
 .Dt X509_NAME_NEW 3
 .Os
 .Sh NAME
@@ -62,6 +62,11 @@ frees
 and all the
 .Vt X509_NAME_ENTRY
 objects contained in it.
+If
+.Fa name
+is a
+.Dv NULL
+pointer, no action occurs.
 .Sh RETURN VALUES
 .Fn X509_NAME_new
 returns a new
diff --git a/src/lib/libcrypto/man/X509_REQ_new.3 b/src/lib/libcrypto/man/X509_REQ_new.3
index 2a99c7ce2f..8d000328f6 100644
--- a/src/lib/libcrypto/man/X509_REQ_new.3
+++ b/src/lib/libcrypto/man/X509_REQ_new.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: X509_REQ_new.3,v 1.4 2018/03/27 17:35:50 schwarze Exp $
+.\"     $OpenBSD: X509_REQ_new.3,v 1.5 2018/07/29 20:29:32 tb Exp $
 .\"
 .\" Copyright (c) 2016 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: March 27 2018 $
+.Dd $Mdocdate: July 29 2018 $
 .Dt X509_REQ_NEW 3
 .Os
 .Sh NAME
@@ -47,6 +47,11 @@ information about the signature algorithm used.
 .Fn X509_REQ_free
 frees
 .Fa req .
+If
+.Fa req
+is a
+.Dv NULL
+pointer, no action occurs.
 .Pp
 .Fn X509_REQ_INFO_new
 allocates and initializes an empty
@@ -61,6 +66,11 @@ certificate and additional attributes.
 .Fn X509_REQ_INFO_free
 frees
 .Fa req_info .
+If
+.Fa req_info
+is a
+.Dv NULL
+pointer, no action occurs.
 .Sh RETURN VALUES
 .Fn X509_REQ_new
 and