F_DUPFD
if ((nfd = _fcntl(fd, F_DUPFD, __rpc_minfd)) == -1)
return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
case F_DUPFD:
{ BSM_F_DUPFD, F_DUPFD },
int newfd = fcntl(caps[0], F_DUPFD, 0);
if ((fd2 = fcntl(fd1, F_DUPFD, 10)) < 0)
pathfd2 = fcntl(pathfd, F_DUPFD, 0);