--- /dev/null
+/*!\file sys/ioctl.h
+ * BSD socket I/O control.
+ */
+
+/*-
+ * 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.
+ *
+ * @(#)ioctl.h 7.19 (Berkeley) 6/26/91
+ */
+
+#ifndef __SYS_IOCTL_H
+#define __SYS_IOCTL_H
+
+/*
+ * Commands for ioctlsocket(), taken from the BSD file fcntl.h.
+ *
+ *
+ * Ioctl's have the command encoded in the lower word,
+ * and the size of any in or out parameters in the upper
+ * word. The high 2 bits of the upper word are used
+ * to encode the in/out status of the parameter; for now
+ * we restrict parameters to at most 128 bytes.
+ */
+
+#define IOCPARM_MASK 0x7f /* parameters must be < 128 bytes */
+
+#define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
+#define IOCBASECMD(x) ((x) & ~IOCPARM_MASK)
+#define IOCGROUP(x) (((x) >> 8) & 0xff)
+
+#define IOCPARM_MAX 4096 /* max size of ioctl */
+#define IOC_VOID 0x20000000 /* no parameters */
+#define IOC_OUT 0x40000000 /* copy out parameters */
+#define IOC_IN 0x80000000 /* copy in parameters */
+#define IOC_INOUT (IOC_IN|IOC_OUT) /* 0x20000000 distinguishes new &
+ old ioctl's */
+#define IOC_DIRMASK 0xe0000000 /* mask for IN/OUT/VOID */
+
+#define _IO(x,y) (IOC_VOID|(x<<8)|y)
+#define _IOR(x,y,t) (IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
+#define _IOW(x,y,t) (IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
+/* this should be _IORW, but stdio got there first */
+#define _IOWR(x,y,t) (IOC_INOUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
+
+/*
+ * file i/o controls
+ */
+#define FIOCLEX _IO('f', 1) /* set close on exec on fd */
+#define FIONCLEX _IO('f', 2) /* remove close on exec */
+#define FIONREAD _IOR('f', 127, int) /* get # bytes to read */
+#define FIONBIO _IOW('f', 126, int) /* set/clear non-blocking i/o */
+#define FIOASYNC _IOW('f', 125, int) /* set/clear async i/o */
+#define FIOSETOWN _IOW('f', 124, int) /* set owner (struct Task *) */
+#define FIOGETOWN _IOR('f', 123, int) /* get owner (struct Task *) */
+
+/*
+ * socket i/o controls
+ *
+ * SIOCSPGRP and SIOCGPGRP are identical to the FIOSETOWN and FIOGETOWN,
+ * respectively.
+ */
+#define SIOCSPGRP _IOW('s', 8, int) /* set process group */
+#define SIOCGPGRP _IOR('s', 9, int) /* get process group */
+
+/* #ifdef BSD */
+#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 OSIOCGIFADDR _IOWR('I',13, struct ifreq) /* get ifnet address */
+#define SIOCGIFADDR _IOWR('I',33, struct ifreq) /* get ifnet address */
+#define SIOCSIFDSTADDR _IOW('I', 14, struct ifreq) /* set p-p address */
+#define OSIOCGIFDSTADDR _IOWR('I',15, struct ifreq) /* get p-p address */
+#define SIOCGIFDSTADDR _IOWR('I',34, struct ifreq) /* get p-p address */
+#define SIOCSIFFLAGS _IOW('I', 16, struct ifreq) /* set ifnet flags */
+#define SIOCGIFFLAGS _IOWR('I',17, struct ifreq) /* get ifnet flags */
+#define OSIOCGIFBRDADDR _IOWR('I',18, struct ifreq) /* get broadcast addr */
+#define SIOCGIFBRDADDR _IOWR('I',35, struct ifreq) /* get broadcast addr */
+#define SIOCSIFBRDADDR _IOW('I',19, struct ifreq) /* set broadcast addr */
+#define OSIOCGIFCONF _IOWR('I',20, struct ifconf) /* get ifnet list */
+#define SIOCGIFCONF _IOWR('I',36, struct ifconf) /* get ifnet list */
+#define OSIOCGIFNETMASK _IOWR('I',21, struct ifreq) /* get net addr mask */
+#define SIOCGIFNETMASK _IOWR('I',37, struct ifreq) /* get net addr mask */
+#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 SIOCDIFADDR _IOW('I',25, struct ifreq) /* delete IF addr */
+#define SIOCAIFADDR _IOW('I',26, struct ifaliasreq) /* add/chg IF alias */
+#define SIOCGIFMTU _IOWR('I',27, struct ifreq) /* get IF mtu */
+#define SIOCGIFHWADDR _IOWR('I',28, struct ifconf) /* get hardware addr */
+#define OSIOCGIFHWADDR SIOCGIFHWADDR
+
+#define SIOCSARP _IOW('I', 30, struct arpreq) /* set arp entry */
+#define OSIOCGARP _IOWR('I',31, struct arpreq) /* get arp entry */
+#define SIOCGARP _IOWR('I',38, struct arpreq) /* get arp entry */
+#define SIOCDARP _IOW('I', 32, struct arpreq) /* delete arp entry */
+/* #endif */ /* BSD */
+
+/* MS-DOS */
+#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? */
+
+/* Since this file shadows the normal djgpp <sys/ioctl.h>, we provide
+ * this prototype here.
+ */
+#if defined(DJGPP)
+ int ioctl (int __fd, int __cmd, ...);
+#endif
+
+#endif /* !SYS_IOCTL_H */
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