--- Net2/net/raw_usrreq.c	2018/04/24 18:04:02	1.1
+++ Net2/net/raw_usrreq.c	2018/04/24 18:21:47	1.1.1.2
@@ -30,10 +30,12 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)raw_usrreq.c	7.9 (Berkeley) 6/28/90
+ *	from: @(#)raw_usrreq.c	7.9 (Berkeley) 6/28/90
+ *	raw_usrreq.c,v 1.3 1993/05/22 11:42:17 cgd Exp
  */
 
 #include "param.h"
+#include "socket.h"
 #include "mbuf.h"
 #include "domain.h"
 #include "protosw.h"