tty = s
	} else {
		tty = s[:idx]
	}
	return
}

func (iov *Iovec) SetLen(length int) {
	iov.Len = uint64(length)
}

func (msghdr *Msghdr) SetControllen(length int) {
	msghdr.Controllen = int32(length)
}

func (cmsg *Cmsghdr) SetLen(length int) {
	cmsg.Len = int32(length)
}

//sys   fcntl(fd int, cmd int, arg int) (val int, err error)

	runtime.ExitSyscall()
	if int64(r0) == -1 {
		err = errnoErr2(e1, e2)
	}
	return
}

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

func recvmsg(s int, msg *Msghdr, flags int) (n int, err error) {
	runtime.EnterSyscall()
	r0, e2, e1 := CallLeFuncWithErr(GetZosLibVec()+SYS___RECVMSG_A<<4, uintptr(s), uintptr(unsafe.Pointer(msg)), uintptr(flags))
	runtime.ExitSyscall()
	n = int(r0)