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