Adding upstream version 1.18.10.upstream/1.18.10upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/net/internal/socktest/sys_cloexec.go b/src/net/internal/socktest/sys_cloexec.go
new file mode 100644
index 0000000..cc7cefb
--- /dev/null
+++ b/src/net/internal/socktest/sys_cloexec.go
@@ -0,0 +1,42 @@
+// Copyright 2015 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.
+
+//go:build dragonfly || freebsd || illumos || linux || netbsd || openbsd
+
+package socktest
+
+import "syscall"
+
+// Accept4 wraps syscall.Accept4.
+func (sw *Switch) Accept4(s, flags int) (ns int, sa syscall.Sockaddr, err error) {
+	so := sw.sockso(s)
+	if so == nil {
+		return syscall.Accept4(s, flags)
+	}
+	sw.fmu.RLock()
+	f := sw.fltab[FilterAccept]
+	sw.fmu.RUnlock()
+
+	af, err := f.apply(so)
+	if err != nil {
+		return -1, nil, err
+	}
+	ns, sa, so.Err = syscall.Accept4(s, flags)
+	if err = af.apply(so); err != nil {
+		if so.Err == nil {
+			syscall.Close(ns)
+		}
+		return -1, nil, err
+	}
+
+	sw.smu.Lock()
+	defer sw.smu.Unlock()
+	if so.Err != nil {
+		sw.stats.getLocked(so.Cookie).AcceptFailed++
+		return -1, nil, so.Err
+	}
+	nso := sw.addLocked(ns, so.Cookie.Family(), so.Cookie.Type(), so.Cookie.Protocol())
+	sw.stats.getLocked(nso.Cookie).Accepted++
+	return ns, sa, nil
+}