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63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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IOCtl.h -- Device-handler-specific requests
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Copyright, Apple Computer Inc. 1985-1991
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All rights reserved.
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This file is used in these builds: ROM System
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Change History (most recent first):
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<6> 8/8/91 JL Update copyright
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<5> 6/17/91 JL Checked in MPW 3.2ƒ version. Changed __safe_link to
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__cplusplus.
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To Do:
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*/
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# ifndef __IOCTL__
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# define __IOCTL__
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/*
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* ioctl() function prototype
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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int ioctl(int fildes, unsigned int cmd, long *arg);
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#ifdef __cplusplus
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}
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#endif
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/*
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* IO Control commands.
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*
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* IOCTLs which begin with "FIO" are controls which are general
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* (device driver) control requests. They may be executed by
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* the top-level ioctl() procedure, or previewed by it before
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* passing it on to the driver xxIoctl()s.
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*/
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# define FIOLSEEK (('f'<<8)|0x00) /* Apple internal use only */
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# define FIODUPFD (('f'<<8)|0x01) /* Apple internal use only */
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# define FIOINTERACTIVE (('f'<<8)|0x02) /* If device is interactive */
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# define FIOBUFSIZE (('f'<<8)|0x03) /* Return optimal buffer size */
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# define FIOFNAME (('f'<<8)|0x04) /* Return filename */
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# define FIOREFNUM (('f'<<8)|0x05) /* Return fs refnum */
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# define FIOSETEOF (('f'<<8)|0x06) /* Set file length */
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/*
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* IOCTLs which begin with "TIO" are for TTY (i.e., console or
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* terminal-related) device control requests.
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*/
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# define TIOFLUSH (('t'<<8)|0x00) /* discard unread input. arg is ignored */
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# define TIOSPORT (('t'<<8)|0x01) /* Obsolete -- do not use */
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# define TIOGPORT (('t'<<8)|0x02) /* Obsolete -- do not use */
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# endif __IOCTL__
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