#if !defined ISO && !defined POSIX
constant F_DUPFD
constant F_GETFD
constant F_SETFD
constant F_GETFL
constant F_SETFL
constant F_GETLK
constant F_SETLK
constant F_SETLKW

constant FD_CLOEXEC

constant F_RDLCK
constant F_UNLCK
constant F_WRLCK

constant O_CREAT
constant O_EXCL
constant O_NOCTTY
constant O_TRUNC

constant O_APPEND
constant O_DSYNC
constant O_NONBLOCK
constant O_RSYNC
constant O_SYNC

constant O_ACCMODE

constant O_RDONLY
constant O_RDWR
constant O_WRONLY

type {struct flock}

element {struct flock} short l_type
element {struct flock} short l_whence
element {struct flock} off_t l_start
element {struct flock} off_t l_len
element {struct flock} pid_t l_pid

type mode_t
type off_t
type pid_t

function int creat (const char*, mode_t)
function int fcntl (int, int, ...)
function int open (const char*, int, ...)

allow-header sys/stat.h
allow-header unistd.h

allow l_*
allow F_*
allow O_*
allow S_*
allow *_t
#endif