func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 }

func (w WaitStatus) TrapCause() int { return -1 }

//sys	ioctl(fd int, req int, arg uintptr) (err error)
//sys	ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) = ioctl

// fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
// There is no way to create a custom fcntl and to keep //sys fcntl easily,

func ioctl(fd int, req int, arg uintptr) (err error) {
	r0, er := C.ioctl(C.int(fd), C.int(req), C.uintptr_t(arg))
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) {
	r0, er := C.ioctl(C.int(fd), C.int(req), C.uintptr_t(uintptr(arg)))

	return InotifyInit1(0)
}

//sys	ioctl(fd int, req uint, arg uintptr) (err error) = SYS_IOCTL
//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL

// ioctl itself should not be exposed directly, but additional get/set functions
// for specific types are permissible. These are defined in ioctl.go and
// ioctl_linux.go.
//
// The third argument to ioctl is often a pointer but sometimes an integer.

func callioctl(fd int, req int, arg uintptr) (r1 uintptr, e1 Errno) {
	r1 = uintptr(C.ioctl(C.int(fd), C.int(req), C.uintptr_t(arg)))
	e1 = syscall.GetErrno()
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func callioctl_ptr(fd int, req int, arg unsafe.Pointer) (r1 uintptr, e1 Errno) {
	r1 = uintptr(C.ioctl(C.int(fd), C.int(req), C.uintptr_t(uintptr(arg))))
	e1 = syscall.GetErrno()
	return
}

	TCSAFLUSH                       = 2
	TCSETSF                         = 2 // equivalent to TCSAFLUSH for tcsetattr
	TCGETS                          = 3 // not defined in ioctl.h -- zos golang only
	TCIFLUSH                        = 0
	TCOFLUSH                        = 1
	TCIOFLUSH                       = 2
	TCOOFF                          = 0
	TCOON                           = 1

        }

        if ( this.disallowCompound == null ) {
            // Samba woes on these
            // Smb2SessionSetupRequest + X -> INTERNAL_ERROR
            // Smb2TreeConnectRequest + IoCtl -> NETWORK_NAME_DELETED
            this.disallowCompound = new HashSet<>(Arrays.asList("Smb2SessionSetupRequest", "Smb2TreeConnectRequest"));
        }
    }

	return
}

//sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD

// TODO
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	return -1, ENOSYS
}

//sys	ioctl(fd int, req uint, arg uintptr) (err error)
//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL

		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
	}
	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
	n = int(r0)
	if e1 != 0 {
		err = e1
	}
	return
}

//sys	ioctl(fd int, req uint, arg uintptr) (err error)
//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL

	getresuid(&r, &e, &s)
	return int(r), int(e), int(s)
}

func Getresgid() (rgid, egid, sgid int) {
	var r, e, s _C_int
	getresgid(&r, &e, &s)
	return int(r), int(e), int(s)
}

//sys	ioctl(fd int, req uint, arg uintptr) (err error)
//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL

	{21, "EISDIR", "is a directory"},
	{22, "EINVAL", "invalid argument"},
	{23, "ENFILE", "too many open files in system"},
	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},