43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/*
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* Copyright (c) 1995 Ugen J.S.Antsilevich
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*
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* Redistribution and use in source forms, with and without modification,
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* are permitted provided that this entire comment appears intact.
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*
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* Redistribution in binary form may occur without any restrictions.
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* Obviously, it would be nice if you gave credit where credit is due
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* but requiring it would be too onerous.
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*
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* This software is provided ``AS IS'' without any warranties of any kind.
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*
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* Snoop stuff.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_SNOOP_H_
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#define _SYS_SNOOP_H_
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#include <sys/ioccom.h>
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/*
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* Theese are snoop io controls
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* SNPSTTY accepts 'struct snptty' as input.
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* If ever type or unit set to -1,snoop device
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* detached from its current tty.
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*/
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#define SNPSTTY _IOW('T', 90, dev_t)
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#define SNPGTTY _IOR('T', 89, dev_t)
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/*
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* Theese values would be returned by FIONREAD ioctl
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* instead of number of characters in buffer in case
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* of specific errors.
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*/
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#define SNP_OFLOW -1
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#define SNP_TTYCLOSE -2
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#define SNP_DETACH -3
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#endif /* !_SYS_SNOOP_H_ */
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