unix: make Fcntl* routines use libSystem on Darwin
Missed this one.
Update golang/go#17490.
Change-Id: I5ab2197f9981b712b37d3060f72209bebcadf291
Reviewed-on: https://go-review.googlesource.com/c/156346
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/fcntl.go b/unix/fcntl.go
index 9379ba9..39c03f1 100644
--- a/unix/fcntl.go
+++ b/unix/fcntl.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// +build darwin dragonfly freebsd linux netbsd openbsd
+// +build dragonfly freebsd linux netbsd openbsd
package unix
diff --git a/unix/fcntl_darwin.go b/unix/fcntl_darwin.go
new file mode 100644
index 0000000..5868a4a
--- /dev/null
+++ b/unix/fcntl_darwin.go
@@ -0,0 +1,18 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+import "unsafe"
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+ return fcntl(int(fd), cmd, arg)
+}
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
+ _, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(lk))))
+ return err
+}
