/*	@(#)stropts.h 1.8 88/08/19 SMI; from S5R3 sys/stropts.h 10.7	*/

/*	Copyright (c) 1984 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

#ifndef _sys_stropts_h
#define _sys_stropts_h

/*
 * Read options
 */
#define RNORM	0			/* read msg norm */
#define RMSGD	1			/* read msg discard */
#define RMSGN	2			/* read msg no discard */

/*
 * Flush options
 */

#define FLUSHR	1			/* flush read queue */
#define FLUSHW	2			/* flush write queue */
#define FLUSHRW	3			/* flush both queues */

/*
 * Events for which to be sent SIGPOLL signal
 */
#define S_INPUT		001		/* regular priority msg on read Q */
#define S_HIPRI		002		/* high priority msg on read Q */
#define S_OUTPUT	004		/* write Q no longer full */
#define S_MSG		010		/* signal msg at front of read Q */

/*
 * Flags for recv() and send() syscall arguments
 */
#define RS_HIPRI	1		/* send/recv high priority message */

/*
 * Flags returned as value of recv() syscall
 */
#define MORECTL		1		/* more ctl info is left in message */
#define MOREDATA	2		/* more data is left in message */

#ifndef FMNAMESZ
#define	FMNAMESZ	8
#endif

#include <sys/ioccom.h>

/*
 *  Stream Ioctl defines
 */
#define I_NREAD		_IOR(S,01,int)
#define I_PUSH		_IOWN(S,02,FMNAMESZ+1)
#define I_POP		_IO(S,03)
#define I_LOOK		_IORN(S,04,FMNAMESZ+1)
#define I_FLUSH		_IO(S,05)
#define I_SRDOPT	_IO(S,06)
#define I_GRDOPT	_IOR(S,07,int)
#define I_STR		_IOWR(S,010,struct strioctl)
#define I_SETSIG	_IO(S,011)
#define I_GETSIG	_IOR(S,012,int)
#define I_FIND		_IOWN(S,013,FMNAMESZ+1)
#define I_LINK		_IO(S,014)
#define I_UNLINK	_IO(S,015)
#define I_PEEK		_IOWR(S,017,struct strpeek)
#define I_FDINSERT	_IOW(S,020,struct strfdinsert)
#define I_SENDFD	_IO(S,021)
#define I_RECVFD	_IOR(S,022,struct strrecvfd)
#define I_PLINK		_IO(S,023)
#define I_PUNLINK	_IO(S,024)


/*
 * User level ioctl format for ioctl that go downstream I_STR 
 */
struct strioctl {
	int 	ic_cmd;			/* command */
	int	ic_timout;		/* timeout value */
	int	ic_len;			/* length of data */
	char	*ic_dp;			/* pointer to data */
};


/*
 * Value for timeouts (ioctl, select) that denotes infinity
 */
#define INFTIM		-1


/*
 * Stream buffer structure for send and recv system calls
 */
struct strbuf {
	int	maxlen;			/* no. of bytes in buffer */
	int	len;			/* no. of bytes returned */
	char	*buf;			/* pointer to data */
};


/* 
 * stream I_PEEK ioctl format
 */

struct strpeek {
	struct strbuf ctlbuf;
	struct strbuf databuf;
	long	      flags;
};

/*
 * stream I_FDINSERT ioctl format
 */
struct strfdinsert {
	struct strbuf ctlbuf;
	struct strbuf databuf;
	long	      flags;
	int	      fildes;
	int	      offset;
};


/*
 * receive file descriptor structure
 */
struct strrecvfd {
#ifdef KERNEL
	union {
		struct file *fp;
		int fd;
	} f;
#else
	int fd;
#endif
	unsigned short uid;
	unsigned short gid;
	char fill[8];
};

#endif /*!_sys_stropts_h*/