Document that shm_open() accepts O_CLOEXEC and O_NOFOLLOW as extensions

ok miod@

diff --git a/lib/libc/gen/shm_open.3 b/lib/libc/gen/shm_open.3
index 1f3afa5..02e3c3a 100644 (file)
--- a/lib/libc/gen/shm_open.3
+++ b/lib/libc/gen/shm_open.3
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: shm_open.3,v 1.4 2014/07/08 00:40:56 matthew Exp $
+.\"    $OpenBSD: shm_open.3,v 1.5 2015/05/05 06:29:15 guenther Exp $
 .\"
 .\" Copyright (c) 2013 Ted Unangst <tedu@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: July 8 2014 $
+.Dd $Mdocdate: May 5 2015 $
 .Dt SHM_OPEN 3
 .Os
 .Sh NAME
@@ -45,7 +45,7 @@ and must include at least
 or
 .Dv O_RDWR
 and may also include a combination of
-.Dv O_CREAT , O_EXCL ,
+.Dv O_CREAT , O_EXCL , O_CLOEXEC , O_NOFOLLOW ,
 or
 .Dv O_TRUNC .
 This implementation forces the
@@ -81,6 +81,13 @@ and
 .Fn shm_unlink
 appear in
 .St -p1003.1-2001 .
+Using
+.Dv O_CLOEXEC
+or
+.Dv O_NOFOLLOW
+with
+.Fn shm_open
+is an extension to that standard.
 This implementation deviates from the standard by permitting less sharing.
 .Pp
 .Fn shm_mkstemp