diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index f88043c..834fc69 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -379,7 +379,7 @@
 #define SOCKETCLOSE close
 #endif
 
-#if (defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H)) && !defined(__NetBSD__)
+#if (defined(HAVE_BLUETOOTH_H) || defined(HAVE_BLUETOOTH_BLUETOOTH_H)) && !defined(__NetBSD__) && !defined(__DragonFly__)
 #define USE_BLUETOOTH 1
 #if defined(__FreeBSD__)
 #define BTPROTO_L2CAP BLUETOOTH_PROTO_L2CAP
@@ -393,11 +393,13 @@
 #define _BT_L2_MEMB(sa, memb) ((sa)->l2cap_##memb)
 #define _BT_RC_MEMB(sa, memb) ((sa)->rfcomm_##memb)
 #define _BT_HCI_MEMB(sa, memb) ((sa)->hci_##memb)
-#elif defined(__NetBSD__)
+#elif defined(__NetBSD__) || defined(__DragonFly__)
 #define sockaddr_l2 sockaddr_bt
 #define sockaddr_rc sockaddr_bt
 #define sockaddr_hci sockaddr_bt
 #define sockaddr_sco sockaddr_bt
+#define SOL_HCI BTPROTO_HCI
+#define HCI_DATA_DIR SO_HCI_DIRECTION
 #define _BT_L2_MEMB(sa, memb) ((sa)->bt_##memb)
 #define _BT_RC_MEMB(sa, memb) ((sa)->bt_##memb)
 #define _BT_HCI_MEMB(sa, memb) ((sa)->bt_##memb)
@@ -1039,9 +1041,13 @@
         case BTPROTO_HCI:
         {
             struct sockaddr_hci *a = (struct sockaddr_hci *) addr;
+#if defined(__NetBSD__) || defined(__DragonFly__)
+            return makebdaddr(&_BT_HCI_MEMB(a, bdaddr));
+#else
             PyObject *ret = NULL;
             ret = Py_BuildValue("i", _BT_HCI_MEMB(a, dev));
             return ret;
+#endif
         }
 
 #if !defined(__FreeBSD__)
@@ -1325,12 +1331,25 @@
         case BTPROTO_HCI:
         {
             struct sockaddr_hci *addr = (struct sockaddr_hci *)addr_ret;
+#if defined(__NetBSD__) || defined(__DragonFly__)
+			char *straddr = PyBytes_AS_STRING(args);
+
+			_BT_HCI_MEMB(addr, family) = AF_BLUETOOTH;
+            if (straddr == NULL) {
+                PyErr_SetString(socket_error, "getsockaddrarg: "
+                    "wrong format");
+                return 0;
+            }
+            if (setbdaddr(straddr, &_BT_HCI_MEMB(addr, bdaddr)) < 0)
+                return 0;
+#else
             _BT_HCI_MEMB(addr, family) = AF_BLUETOOTH;
             if (!PyArg_ParseTuple(args, "i", &_BT_HCI_MEMB(addr, dev))) {
                 PyErr_SetString(socket_error, "getsockaddrarg: "
                                 "wrong format");
                 return 0;
             }
+#endif
             *len_ret = sizeof *addr;
             return 1;
         }
@@ -4400,9 +4419,13 @@
     PyModule_AddIntConstant(m, "BTPROTO_L2CAP", BTPROTO_L2CAP);
     PyModule_AddIntConstant(m, "BTPROTO_HCI", BTPROTO_HCI);
     PyModule_AddIntConstant(m, "SOL_HCI", SOL_HCI);
+#if !defined(__NetBSD__) && !defined(__DragonFly__)
     PyModule_AddIntConstant(m, "HCI_FILTER", HCI_FILTER);
+#endif
 #if !defined(__FreeBSD__)
+#if !defined(__NetBSD__) && !defined(__DragonFly__)
     PyModule_AddIntConstant(m, "HCI_TIME_STAMP", HCI_TIME_STAMP);
+#endif
     PyModule_AddIntConstant(m, "HCI_DATA_DIR", HCI_DATA_DIR);
     PyModule_AddIntConstant(m, "BTPROTO_SCO", BTPROTO_SCO);
 #endif