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- /*
- IOCtl.h -- Device-handler-specific requests
-
- Warning: This interface is NOT a part of the ANSI C standard.
- We do NOT claim to be POSIX compliant.
- If you want your code to be portable, don't use this interface.
-
- 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__*/
-