Adding upstream version 1.17.13.upstream/1.17.13upstream

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

1 files changed, 29 insertions, 0 deletions

diff --git a/src/syscall/sock_cloexec_linux.go b/src/syscall/sock_cloexec_linux.go
new file mode 100644
index 0000000..600cf25
--- /dev/null
+++ b/src/syscall/sock_cloexec_linux.go
@@ -0,0 +1,29 @@
+// 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 syscall
+
+// This is a stripped down version of sysSocket from net/sock_cloexec.go.
+func cloexecSocket(family, sotype, proto int) (int, error) {
+	s, err := Socket(family, sotype|SOCK_CLOEXEC, proto)
+	switch err {
+	case nil:
+		return s, nil
+	default:
+		return -1, err
+	case EINVAL:
+	}
+
+	ForkLock.RLock()
+	s, err = Socket(family, sotype, proto)
+	if err == nil {
+		CloseOnExec(s)
+	}
+	ForkLock.RUnlock()
+	if err != nil {
+		Close(s)
+		return -1, err
+	}
+	return s, nil
+}