1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv4/sockopt_asmreq_posix.go b/vendor/golang.org/x/net/ipv4/sockopt_asmreq_posix.go
new file mode 100644
index 000000000..ef9b13902
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/sockopt_asmreq_posix.go
@@ -0,0 +1,46 @@
+// 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.
+
+// +build darwin dragonfly freebsd netbsd openbsd windows
+
+package ipv4
+
+import (
+	"net"
+	"os"
+	"unsafe"
+
+	"golang.org/x/net/internal/iana"
+)
+
+func setsockoptIPMreq(s uintptr, name int, ifi *net.Interface, grp net.IP) error {
+	mreq := sysIPMreq{Multiaddr: [4]byte{grp[0], grp[1], grp[2], grp[3]}}
+	if err := setIPMreqInterface(&mreq, ifi); err != nil {
+		return err
+	}
+	return os.NewSyscallError("setsockopt", setsockopt(s, iana.ProtocolIP, name, unsafe.Pointer(&mreq), sysSizeofIPMreq))
+}
+
+func getsockoptInterface(s uintptr, name int) (*net.Interface, error) {
+	var b [4]byte
+	l := uint32(4)
+	if err := getsockopt(s, iana.ProtocolIP, name, unsafe.Pointer(&b[0]), &l); err != nil {
+		return nil, os.NewSyscallError("getsockopt", err)
+	}
+	ifi, err := netIP4ToInterface(net.IPv4(b[0], b[1], b[2], b[3]))
+	if err != nil {
+		return nil, err
+	}
+	return ifi, nil
+}
+
+func setsockoptInterface(s uintptr, name int, ifi *net.Interface) error {
+	ip, err := netInterfaceToIP4(ifi)
+	if err != nil {
+		return err
+	}
+	var b [4]byte
+	copy(b[:], ip)
+	return os.NewSyscallError("setsockopt", setsockopt(s, iana.ProtocolIP, name, unsafe.Pointer(&b[0]), uint32(4)))
+}