net: fix EAI_BADFLAGS error on freebsd
R=rsc
CC=golang-dev
https://golang.org/cl/4442072
diff --git a/src/pkg/net/cgo_linux.go b/src/pkg/net/cgo_linux.go
new file mode 100644
index 0000000..8d4413d
--- /dev/null
+++ b/src/pkg/net/cgo_linux.go
@@ -0,0 +1,14 @@
+// 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.
+
+package net
+
+/*
+#include <netdb.h>
+*/
+import "C"
+
+func cgoAddrInfoMask() C.int {
+ return C.AI_CANONNAME | C.AI_V4MAPPED | C.AI_ALL
+}
