fcntl.h

#define O_CREAT        0100
#define O_EXCL         0200
#define O_NOCTTY       0400
#define O_TRUNC       01000
#define O_APPEND      02000
#define O_NONBLOCK    04000
#define O_DSYNC      010000
#define O_SYNC     04010000
#define O_RSYNC    04010000
#define O_DIRECTORY  040000
#define O_NOFOLLOW  0100000
#define O_CLOEXEC  02000000

#define O_ASYNC      020000
#define O_DIRECT    0200000
#define O_LARGEFILE 0400000
#define O_NOATIME  01000000
#define O_NDELAY O_NONBLOCK

#define F_DUPFD  0
#define F_GETFD  1
#define F_SETFD  2
#define F_GETFL  3
#define F_SETFL  4

#define F_SETOWN 8
#define F_GETOWN 9
#define F_SETSIG 10
#define F_GETSIG 11

#define F_GETLK 12
#define F_SETLK 13
#define F_SETLKW 14