2 files changed, 10 insertions, 9 deletions

diff --git a/src/lib/libc/stdlib/mkstemp.c b/src/lib/libc/stdlib/mkstemp.c
index 75a9d27d1a..760575005f 100644
--- a/src/lib/libc/stdlib/mkstemp.c
+++ b/src/lib/libc/stdlib/mkstemp.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: mkstemp.c,v 1.1 2024/01/19 19:45:02 millert Exp $ */
+/*      $OpenBSD: mkstemp.c,v 1.2 2025/08/04 04:59:31 guenther Exp $ */
 /*
  * Copyright (c) 2024 Todd C. Miller
  *
@@ -20,7 +20,8 @@
 #include <fcntl.h>
 #include <stdlib.h>
 
-#define MKOSTEMP_FLAGS  (O_APPEND | O_CLOEXEC | O_DSYNC | O_RSYNC | O_SYNC)
+#define MKOSTEMP_FLAGS \
+        (O_APPEND | O_CLOEXEC | O_CLOFORK | O_DSYNC | O_RSYNC | O_SYNC)
 
 static int
 mkstemp_cb(const char *path, int flags)
diff --git a/src/lib/libc/stdlib/mktemp.3 b/src/lib/libc/stdlib/mktemp.3
index 83b7c9eb30..e57ac77717 100644
--- a/src/lib/libc/stdlib/mktemp.3
+++ b/src/lib/libc/stdlib/mktemp.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: mktemp.3,v 1.2 2024/03/01 21:30:40 millert Exp $
+.\"     $OpenBSD: mktemp.3,v 1.3 2025/08/04 04:59:31 guenther Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: March 1 2024 $
+.Dd $Mdocdate: August 4 2025 $
 .Dt MKTEMP 3
 .Os
 .Sh NAME
@@ -119,6 +119,8 @@ system call:
 Append on each write.
 .It Dv O_CLOEXEC
 Set the close-on-exec flag on the new file descriptor.
+.It Dv O_CLOFORK
+Set the close-on-fork flag on the new file descriptor.
 .It Dv O_SYNC
 Perform synchronous I/O operations.
 .El
@@ -345,18 +347,16 @@ function.
 .Xr tmpnam 3
 .Sh STANDARDS
 The
-.Fn mkdtemp
+.Fn mkdtemp ,
+.Fn mkostemp ,
 and
 .Fn mkstemp
 functions conform to the
-.St -p1003.1-2008
+.St -p1003.1-2024
 specification.
 The ability to specify more than six
 .Em X Ns s
 is an extension to that standard.
-The
-.Fn mkostemp
-function is expected to conform to a future revision of that standard.
 .Pp
 The
 .Fn mktemp