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-rw-r--r--src/net/sockoptip_windows.go30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/net/sockoptip_windows.go b/src/net/sockoptip_windows.go
new file mode 100644
index 0000000..6267603
--- /dev/null
+++ b/src/net/sockoptip_windows.go
@@ -0,0 +1,30 @@
+// 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
+
+import (
+ "os"
+ "runtime"
+ "syscall"
+ "unsafe"
+)
+
+func setIPv4MulticastInterface(fd *netFD, ifi *Interface) error {
+ ip, err := interfaceToIPv4Addr(ifi)
+ if err != nil {
+ return os.NewSyscallError("setsockopt", err)
+ }
+ var a [4]byte
+ copy(a[:], ip.To4())
+ err = fd.pfd.Setsockopt(syscall.IPPROTO_IP, syscall.IP_MULTICAST_IF, (*byte)(unsafe.Pointer(&a[0])), 4)
+ runtime.KeepAlive(fd)
+ return wrapSyscallError("setsockopt", err)
+}
+
+func setIPv4MulticastLoopback(fd *netFD, v bool) error {
+ err := fd.pfd.SetsockoptInt(syscall.IPPROTO_IP, syscall.IP_MULTICAST_LOOP, boolint(v))
+ runtime.KeepAlive(fd)
+ return wrapSyscallError("setsockopt", err)
+}