F_DUP2FD
case F_DUP2FD:
case F_DUP2FD:
case F_DUP2FD:
if ((fd2 = fcntl(fd1, F_DUP2FD, fd1 + 1)) < 0)
if ((fd2 = fcntl(fd1, F_DUP2FD, fd1)) < 0)
if ((fd2 = fcntl(fd1, F_DUP2FD, rlp.rlim_cur + 1)) >= 0)
case F_DUP2FD:
oclo_fdup_common(c, 0, F_DUP2FD);