freebsd-dev/sys/sys/snoop.h
Olivier Houchard 30ce1aad9c Slightly change the API for the SNPSTTY ioctl so that the userland now
provides a file descriptor instead of a dev_t.

Discussed with:	phk
MFC after: 3 days
2005-09-18 19:23:35 +00:00

44 lines
1014 B
C

/*-
* Copyright (c) 1995 Ugen J.S.Antsilevich
*
* Redistribution and use in source forms, with and without modification,
* are permitted provided that this entire comment appears intact.
*
* Redistribution in binary form may occur without any restrictions.
* Obviously, it would be nice if you gave credit where credit is due
* but requiring it would be too onerous.
*
* This software is provided ``AS IS'' without any warranties of any kind.
*
* Snoop stuff.
*
* $FreeBSD$
*/
#ifndef _SYS_SNOOP_H_
#define _SYS_SNOOP_H_
#ifndef _KERNEL
#include <sys/types.h>
#endif
#include <sys/ioccom.h>
/*
* These are snoop io controls
* SNPSTTY accepts a file descriptor as input.
*/
#define SNPSTTY _IOW('T', 90, int)
#define SNPGTTY _IOR('T', 89, dev_t)
/*
* These values would be returned by FIONREAD ioctl
* instead of number of characters in buffer in case
* of specific errors.
*/
#define SNP_OFLOW -1
#define SNP_TTYCLOSE -2
#define SNP_DETACH -3
#endif /* !_SYS_SNOOP_H_ */