Imported Upstream version 2011.05.22upstream-weekly/2011.05.22

1 files changed, 31 insertions, 0 deletions

diff --git a/src/pkg/net/sock_bsd.go b/src/pkg/net/sock_bsd.go
new file mode 100644
index 000000000..5fd52074a
--- /dev/null
+++ b/src/pkg/net/sock_bsd.go
@@ -0,0 +1,31 @@
+// Copyright 2011 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.
+
+// Sockets for BSD variants
+
+package net
+
+import (
+	"syscall"
+)
+
+func setKernelSpecificSockopt(s, f int) {
+	// Allow reuse of recently-used addresses.
+	syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
+
+	// Allow reuse of recently-used ports.
+	// This option is supported only in descendants of 4.4BSD,
+	// to make an effective multicast application and an application
+	// that requires quick draw possible.
+	syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEPORT, 1)
+
+	// Allow broadcast.
+	syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_BROADCAST, 1)
+
+	if f == syscall.AF_INET6 {
+		// using ip, tcp, udp, etc.
+		// allow both protocols even if the OS default is otherwise.
+		syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, 0)
+	}
+}