code review 6482044: go.net/ipv4: new package

ipv4/genericopt_plan9.go

Index: ipv4/genericopt_plan9.go
===================================================================
new file mode 100644
--- /dev/null
+++ b/ipv4/genericopt_plan9.go
@@ -0,0 +1,29 @@
+// Copyright 2012 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 ipv4
+
+import (
+	"syscall"
+)
+
+func (c *genericOpt) TOS() (int, error) {
+	// TODO(mikio): Implement this
+	return 0, syscall.EPLAN9
+}
+
+func (c *genericOpt) SetTOS(tos int) error {
+	// TODO(mikio): Implement this
+	return syscall.EPLAN9
+}
+
+func (c *genericOpt) TTL() (int, error) {
+	// TODO(mikio): Implement this
+	return 0, syscall.EPLAN9
+}
+
+func (c *genericOpt) SetTTL(ttl int) error {
+	// TODO(mikio): Implement this
+	return syscall.EPLAN9
+}