1 files changed, 16 insertions, 0 deletions
diff --git a/dhcpv4/bindtodevice_darwin.go b/dhcpv4/bindtodevice_darwin.go
new file mode 100644
index 0000000..e9580ce
--- /dev/null
+++ b/dhcpv4/bindtodevice_darwin.go
@@ -0,0 +1,16 @@
+// +build darwin
+
+package dhcpv4
+
+import (
+	"net"
+	"syscall"
+)
+
+func BindToInterface(fd int, ifname string) error {
+	iface, err := net.InterfaceByName(ifname)
+	if err != nil {
+		return err
+	}
+	return syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_BOUND_IF, iface.Index)
+}