source: buchla-68k/include/fcntl.h@ 15854f1

/*
   =============================================================================
        fcntl.h -- file control function header
        Version 3 -- 1987-06-26 -- D.N. Lynx Crowe
   =============================================================================
*/

#pragma once

/*
   =============================================================================
        The following symbols are used with open(), creat() and fcntl().
        The first 3 can only be set by open().
   =============================================================================
*/

#define O_RDONLY        0x0000u /* Read-only value  */
#define O_WRONLY        0x0001u /* Write-only value */
#define O_RDWR          0x0002u /* Read-write value */

#define O_NDELAY        0x0004u /* Non-blocking I/O flag */
#define O_APPEND        0x0008u /* Append mode flag (write only at end) */

#define O_CREAT         0x0100u /* File creation flag (uses 3rd argument) */
#define O_TRUNC         0x0200u /* File truncation flag */
#define O_EXCL          0x0400u /* Exclusive access flag */

#define O_RAW           0x8000u /* Raw (binary) I/O flag for getc and putc */

/*
   =============================================================================
        The following symbols define requests used with the fcntl() function.
   =============================================================================
*/

#define F_DUPFD 0       /* Duplicate file descriptor */

#define F_GETFD 1       /* Get file descriptor flags */
#define F_SETFD 2       /* Set file descriptor flags */

#define F_GETFL 3       /* Get file flags */
#define F_SETFL 4       /* Set file flags */