--- /dev/null
+/*!\file sys/so_ioctl.h
+ *
+ * BSD socket I/O control.
+ */
+
+/* so_ioctl.h derived from BSD's ioctl.h by hv and em 1994
+ *
+ * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from: @(#)ioctl.h 7.19 (Berkeley) 6/26/91
+ */
+
+#ifndef __SYS_SO_IOCTL_H
+#define __SYS_SO_IOCTL_H
+
+#undef _IOC
+#undef _IOW
+#undef _IOR
+#undef _IOWR
+
+#define _IOC(a,b) ((a<<8)|b)
+#define _IOW(a,b,c) _IOC(a,b)
+#define _IOR(a,b,c) _IOC(a,b)
+#define _IOWR(a,b,c) _IOC(a,b)
+
+#define _TCPIP_FIONREAD _IOC('f', 127)
+#define FIONBIO _IOC('f', 126)
+#define FIOASYNC _IOC('f', 125)
+#define FIOTCPCKSUM _IOC('f', 128)
+#define FIONSTATUS _IOC('f', 120)
+#define FIONURG _IOC('f', 121)
+
+/* socket i/o controls */
+#define SIOCSHIWAT _IOW('s', 0, int) /* set high watermark */
+#define SIOCGHIWAT _IOR('s', 1, int) /* get high watermark */
+#define SIOCSLOWAT _IOW('s', 2, int) /* set low watermark */
+#define SIOCGLOWAT _IOR('s', 3, int) /* get low watermark */
+#define SIOCATMARK _IOR('s', 7, int) /* at oob mark? */
+#define SIOCSPGRP _IOW('s', 8, int) /* set process group */
+#define SIOCGPGRP _IOR('s', 9, int) /* get process group */
+
+#define SIOCADDRT _IOW('r', 10, struct ortentry) /* add route */
+#define SIOCDELRT _IOW('r', 11, struct ortentry) /* delete route */
+
+#define SIOCSIFADDR _IOW('i', 12, struct ifreq) /* set ifnet address */
+#define SIOCGIFADDR _IOWR('i',13, struct ifreg) /* get ifnet addres */
+#define OSIOCGIFADDR SIOCGIFADDR
+#define SIOCSIFDSTADDR _IOW('i', 14, struct ifreq) /* set p-p address */
+#define SIOCGIFDSTADDR _IOWR('i',15, struct ifreq) /* get p-p address */
+#define OSIOCGIFDSTADDR SIOCGIFDSTADDR
+#define SIOCSIFFLAGS _IOW('i', 16, struct ifreq) /* set ifnet flags */
+#define SIOCGIFFLAGS _IOWR('i',17, struct ifreq) /* get ifnet flags */
+#define SIOCGIFBRDADDR _IOWR('i',18, struct ifreq) /* get broadcast addr */
+#define OSIOCGIFBRDADDR SIOCGIFBRDADDR
+#define SIOCSIFBRDADDR _IOW('i', 19, struct ifreq) /* set broadcast addr */
+#define SIOCGIFCONF _IOWR('i',20, struct ifreq) /* get ifnet list */
+#define OSIOCGIFCONF SIOCGIFCONF
+#define SIOCGIFNETMASK _IOWR('i',21, struct ifreq) /* get net addr mask */
+#define OSIOCGIFNETMASK SIOCGIFNETMASK
+#define SIOCSIFNETMASK _IOW('i', 22, struct ifreq) /* set net addr mask */
+#define SIOCGIFMETRIC _IOWR('i',23, struct ifreq) /* get if metric */
+#define SIOCSIFMETRIC _IOW('i', 24, struct ifreq) /* set if metric */
+
+#define SIOCSARP _IOW('i', 30, struct arpreq) /* set arp entry */
+#define SIOCGARP _IOWR('i',31, struct arpreq) /* get arp entry */
+#define OSIOCGARP SIOCGARP
+#define SIOCDARP _IOW('i', 32, struct arpreq) /* delete arp entry */
+
+#endif