File Manager

X7ROOT File Manager

Current Path: /usr/sbin

📁 ..
📄 NetworkManager(3.41 MB)
📄 accessdb(12.59 KB)
📄 accton(13.69 KB)
📄 adcli(179.27 KB)
📄 addgnupghome(3 KB)
📄 addpart(24.86 KB)
📄 adduser(148.17 KB)
📄 agetty(62.38 KB)
📄 alternatives(36.66 KB)
📄 anacron(40.99 KB)
📄 apachectl(4.52 KB)
📄 applygnupgdefaults(2.17 KB)
📄 arp(64.71 KB)
📄 arpd(109.52 KB)
📄 arping(28.74 KB)
📄 atd(32.63 KB)
📄 atopacctd(25.29 KB)
📄 atrun(67 B)
📄 auditctl(45.04 KB)
📄 auditd(151.73 KB)
📄 augenrules(4.04 KB)
📄 aureport(122.35 KB)
📄 ausearch(130.36 KB)
📄 authconfig(21.54 KB)
📄 autrace(16.54 KB)
📄 avcstat(16.4 KB)
📄 badblocks(32.59 KB)
📄 biosdecode(21.45 KB)
📄 biosdevname(46.16 KB)
📄 blkdeactivate(15.97 KB)
📄 blkdiscard(29.05 KB)
📄 blkid(98.66 KB)
📄 blkmapd(53.47 KB)
📄 blkzone(49.74 KB)
📄 blockdev(41.3 KB)
📄 bpftool(2.74 MB)
📄 bridge(158.25 KB)
📄 build-locale-archive(841.02 KB)
📄 cache_check(1.43 MB)
📄 cache_dump(1.43 MB)
📄 cache_metadata_size(1.43 MB)
📄 cache_repair(1.43 MB)
📄 cache_restore(1.43 MB)
📄 cache_writeback(1.43 MB)
📄 capsh(32.44 KB)
📄 cfdisk(98.4 KB)
📄 chcpu(28.84 KB)
📄 chgpasswd(69.69 KB)
📄 chkconfig(45.11 KB)
📄 chpasswd(61.42 KB)
📄 chronyd(375.66 KB)
📄 chroot(41.52 KB)
📄 clock(65.22 KB)
📄 clockdiff(20.43 KB)
📄 consoletype(11.85 KB)
📄 convertquota(78.68 KB)
📄 cracklib-check(13.05 KB)
📄 cracklib-format(251 B)
📄 cracklib-packer(13.05 KB)
📄 cracklib-unpacker(9.03 KB)
📄 create-cracklib-dict(990 B)
📄 crond(73.94 KB)
📄 cryptsetup(147.42 KB)
📄 csf(245.1 KB)
📄 ctrlaltdel(24.79 KB)
📄 ctstat(25.33 KB)
📄 dcb(155.04 KB)
📄 ddns-confgen(20.46 KB)
📄 debugfs(231.63 KB)
📄 delpart(24.86 KB)
📄 depmod(159.95 KB)
📄 devlink(215.87 KB)
📄 dhclient(453.68 KB)
📄 dhclient-script(32.86 KB)
📄 dmeventd(45.08 KB)
📄 dmfilemapd(24.55 KB)
📄 dmidecode(141.8 KB)
📄 dmsetup(158.64 KB)
📄 dmstats(158.64 KB)
📄 dnssec-checkds(936 B)
📄 dnssec-coverage(938 B)
📄 dnssec-dsfromkey(60.84 KB)
📄 dnssec-importkey(60.84 KB)
📄 dnssec-keyfromlabel(64.76 KB)
📄 dnssec-keygen(72.84 KB)
📄 dnssec-keymgr(934 B)
📄 dnssec-revoke(56.74 KB)
📄 dnssec-settime(60.84 KB)
📄 dnssec-signzone(117.2 KB)
📄 dnssec-verify(52.84 KB)
📄 dosfsck(65.13 KB)
📄 dosfslabel(61.1 KB)
📄 dovecot(137.48 KB)
📄 dovecot_cpshutdown(3.27 KB)
📄 dpkg-fsys-usrunmess(12.11 KB)
📄 dump-acct(29.15 KB)
📄 dump-utmp(25.02 KB)
📄 dumpe2fs(32.52 KB)
📄 e2freefrag(16.42 KB)
📄 e2fsck(328.52 KB)
📄 e2image(36.61 KB)
📄 e2label(110.63 KB)
📄 e2mmpstatus(32.52 KB)
📄 e2undo(20.38 KB)
📄 e4crypt(24.55 KB)
📄 e4defrag(28.49 KB)
📄 ebtables(220.8 KB)
📄 ebtables-restore(220.8 KB)
📄 ebtables-save(220.8 KB)
📄 edquota(91.24 KB)
📄 era_check(1.43 MB)
📄 era_dump(1.43 MB)
📄 era_invalidate(1.43 MB)
📄 era_restore(1.43 MB)
📄 ether-wake(73.99 KB)
📄 ethtool(557.79 KB)
📄 exicyclog(11.1 KB)
📄 exigrep(10.52 KB)
📄 exim(1.49 MB)
📄 exim_checkaccess(4.83 KB)
📄 exim_dbmbuild(23.23 KB)
📄 exim_dumpdb(38.02 KB)
📄 exim_fixdb(47.56 KB)
📄 exim_lock(26.59 KB)
📄 exim_tidydb(42.35 KB)
📄 eximstats(148.26 KB)
📄 exinext(7.14 KB)
📄 exiqgrep(5.66 KB)
📄 exiqsumm(5.32 KB)
📄 exiwhat(4.42 KB)
📄 exportfs(82.38 KB)
📄 faillock(20.52 KB)
📄 fatlabel(61.1 KB)
📄 fcgistarter(17.11 KB)
📄 fdformat(33.17 KB)
📄 fdisk(130.92 KB)
📄 filefrag(16.47 KB)
📄 findfs(12.37 KB)
📄 firewalld(6.92 KB)
📄 fix-info-dir(7.84 KB)
📄 fixfiles(10.48 KB)
📄 fsadm(24 KB)
📄 fsck(53.47 KB)
📄 fsck.cramfs(41.4 KB)
📄 fsck.ext2(328.52 KB)
📄 fsck.ext3(328.52 KB)
📄 fsck.ext4(328.52 KB)
📄 fsck.fat(65.13 KB)
📄 fsck.minix(98.74 KB)
📄 fsck.msdos(65.13 KB)
📄 fsck.vfat(65.13 KB)
📄 fsck.xfs(1.92 KB)
📄 fsfreeze(16.38 KB)
📄 fstrim(49.6 KB)
📄 fuse2fs(70.39 KB)
📄 fuser(38.14 KB)
📄 g13-syshelp(189.71 KB)
📄 genhomedircon(29.27 KB)
📄 genhostid(11.85 KB)
📄 genl(121.41 KB)
📄 genrandom(12.38 KB)
📄 getcap(12.34 KB)
📄 getenforce(7.84 KB)
📄 getpcaps(12.27 KB)
📄 getsebool(11.88 KB)
📄 groupadd(95.34 KB)
📄 groupdel(91.09 KB)
📄 groupmems(61.48 KB)
📄 groupmod(99.37 KB)
📄 grpck(61.48 KB)
📄 grpconv(57.26 KB)
📄 grpunconv(57.25 KB)
📄 grub2-bios-setup(1.16 MB)
📄 grub2-get-kernel-settings(2.68 KB)
📄 grub2-install(1.44 MB)
📄 grub2-macbless(1.14 MB)
📄 grub2-mkconfig(8.68 KB)
📄 grub2-ofpathname(242.26 KB)
📄 grub2-probe(1.16 MB)
📄 grub2-reboot(3.99 KB)
📄 grub2-rpm-sort(279.16 KB)
📄 grub2-set-bootflag(16.34 KB)
📄 grub2-set-default(3.45 KB)
📄 grub2-set-password(3.05 KB)
📄 grub2-setpassword(3.05 KB)
📄 grub2-sparc64-setup(1.16 MB)
📄 grub2-switch-to-blscfg(8.6 KB)
📄 grubby(260 B)
📄 gss-server(24.62 KB)
📄 gssproxy(132.08 KB)
📄 halt(218.45 KB)
📄 hardlink(17.09 KB)
📄 hdparm(131.91 KB)
📄 htcacheclean(44.36 KB)
📄 httpd(990.57 KB)
📄 hwclock(65.22 KB)
📄 iconvconfig(33.05 KB)
📄 ifconfig(80.86 KB)
📄 ifdown(2.07 KB)
📄 ifenslave(24.95 KB)
📄 ifstat(117.67 KB)
📄 iftop(75.42 KB)
📄 ifup(5.33 KB)
📄 imunify-notifier(9.82 MB)
📄 init(1.53 MB)
📄 insmod(159.95 KB)
📄 install-info(50.23 KB)
📄 installkernel(323 B)
📄 intel_sdsi(15.62 KB)
📄 iotop(511 B)
📄 ip(693.3 KB)
📄 ip6tables(220.8 KB)
📄 ip6tables-apply(6.89 KB)
📄 ip6tables-restore(220.8 KB)
📄 ip6tables-restore-translate(220.8 KB)
📄 ip6tables-save(220.8 KB)
📄 ip6tables-translate(220.8 KB)
📄 ipmaddr(21 KB)
📄 iprconfig(408.03 KB)
📄 iprdbg(137.57 KB)
📄 iprdump(129.3 KB)
📄 iprinit(125.28 KB)
📄 iprsos(2.18 KB)
📄 iprupdate(129.3 KB)
📄 ipset(9.01 KB)
📄 iptables(220.8 KB)
📄 iptables-apply(6.89 KB)
📄 iptables-restore(220.8 KB)
📄 iptables-restore-translate(220.8 KB)
📄 iptables-save(220.8 KB)
📄 iptables-translate(220.8 KB)
📄 iptstate(92.05 KB)
📄 iptunnel(25 KB)
📄 irqbalance(62.28 KB)
📄 irqbalance-ui(41.29 KB)
📄 isc-hmac-fixup(11.85 KB)
📄 iscsi-iname(16.42 KB)
📄 iscsiadm(406.38 KB)
📄 iscsid(419.23 KB)
📄 iscsistart(374.54 KB)
📄 iscsiuio(183.51 KB)
📄 kexec(194.98 KB)
📄 key.dns_resolver(24.52 KB)
📄 kpartx(49.05 KB)
📄 kpatch(16.59 KB)
📄 lchage(16.41 KB)
📄 ldattach(32.99 KB)
📄 ldconfig(986.02 KB)
📄 ledctl(101.16 KB)
📄 ledmon(101.11 KB)
📄 lfd(382.45 KB)
📄 lgroupadd(11.88 KB)
📄 lgroupdel(11.88 KB)
📄 lgroupmod(19.88 KB)
📄 lid(16.27 KB)
📄 lnewusers(19.87 KB)
📄 lnstat(25.33 KB)
📄 load_policy(12.28 KB)
📄 logrotate(93.03 KB)
📄 logsave(16.41 KB)
📄 losetup(90.59 KB)
📄 lpasswd(20.35 KB)
📄 lshw(966.2 KB)
📄 lsmod(159.95 KB)
📄 lspci(94.85 KB)
📄 luseradd(19.88 KB)
📄 luserdel(15.88 KB)
📄 lusermod(19.88 KB)
📄 lvchange(2.61 MB)
📄 lvconvert(2.61 MB)
📄 lvcreate(2.61 MB)
📄 lvdisplay(2.61 MB)
📄 lvextend(2.61 MB)
📄 lvm(2.61 MB)
📄 lvm_import_vdo(23.14 KB)
📄 lvmconfig(2.61 MB)
📄 lvmdevices(2.61 MB)
📄 lvmdiskscan(2.61 MB)
📄 lvmdump(10.12 KB)
📄 lvmpolld(200.69 KB)
📄 lvmsadc(2.61 MB)
📄 lvmsar(2.61 MB)
📄 lvreduce(2.61 MB)
📄 lvremove(2.61 MB)
📄 lvrename(2.61 MB)
📄 lvresize(2.61 MB)
📄 lvs(2.61 MB)
📄 lvscan(2.61 MB)
📄 lwresd(840.86 KB)
📄 makedumpfile(425.19 KB)
📄 mariadbd(24.3 MB)
📄 matchpathcon(12.37 KB)
📄 mcelog(206.3 KB)
📄 mdadm(620.63 KB)
📄 mdmon(375.48 KB)
📄 mii-diag(25.4 KB)
📄 mii-tool(21.03 KB)
📄 mkdict(251 B)
📄 mkdosfs(39.07 KB)
📄 mkdumprd(12.68 KB)
📄 mke2fs(138.45 KB)
📄 mkfadumprd(2.23 KB)
📄 mkfs(16.47 KB)
📄 mkfs.cramfs(41.26 KB)
📄 mkfs.ext2(138.45 KB)
📄 mkfs.ext3(138.45 KB)
📄 mkfs.ext4(138.45 KB)
📄 mkfs.fat(39.07 KB)
📄 mkfs.minix(86.55 KB)
📄 mkfs.msdos(39.07 KB)
📄 mkfs.vfat(39.07 KB)
📄 mkfs.xfs(475.98 KB)
📄 mkhomedir_helper(24.43 KB)
📄 mklost+found(11.86 KB)
📄 mksquashfs(186.83 KB)
📄 mkswap(86.47 KB)
📄 modinfo(159.95 KB)
📄 modprobe(159.95 KB)
📄 modsec-sdbm-util(25.83 KB)
📄 mount.nfs(197.24 KB)
📄 mount.nfs4(197.24 KB)
📄 mountstats(42.22 KB)
📄 mpathconf(16.17 KB)
📄 mpathpersist(29.34 KB)
📄 mtr(110.92 KB)
📄 mtr-packet(58.3 KB)
📄 multipath(32.61 KB)
📄 multipathd(134.76 KB)
📄 mysqld(24.3 MB)
📄 named(840.86 KB)
📄 named-checkconf(36.77 KB)
📄 named-checkzone(36.63 KB)
📄 named-compilezone(36.63 KB)
📄 named-journalprint(11.85 KB)
📄 nameif(16.98 KB)
📄 newusers(107.23 KB)
📄 nfsconf(37.48 KB)
📄 nfsconvert(13.03 KB)
📄 nfsdcld(65.87 KB)
📄 nfsdclddb(10 KB)
📄 nfsdclnts(9.02 KB)
📄 nfsdcltrack(49.78 KB)
📄 nfsidmap(45.36 KB)
📄 nfsiostat(23.36 KB)
📄 nfsref(65.8 KB)
📄 nfsstat(35.52 KB)
📄 nft(24.41 KB)
📄 nginx(1.85 MB)
📄 nginx-debug(1.98 MB)
📄 nologin(11.87 KB)
📄 nrpe(76.13 KB)
📄 nscd(160.68 KB)
📄 nsec3hash(12.29 KB)
📄 nstat(113.57 KB)
📄 nvme(721.45 KB)
📄 oddjobd(77.63 KB)
📄 ownership(12.4 KB)
📄 packer(13.05 KB)
📄 pam_console_apply(45.2 KB)
📄 pam_timestamp_check(11.87 KB)
📄 paperconfig(4.07 KB)
📄 parted(85.6 KB)
📄 partprobe(16.39 KB)
📄 partx(94.5 KB)
📄 pdata_tools(1.43 MB)
📄 pidof(16.7 KB)
📄 ping(66.13 KB)
📄 ping6(66.13 KB)
📄 pivot_root(12.38 KB)
📄 plipconfig(12.71 KB)
📄 plymouth-set-default-theme(6.05 KB)
📄 plymouthd(141.97 KB)
📄 poweroff(218.45 KB)
📄 pure-authd(19.23 KB)
📄 pure-certd(19.13 KB)
📄 pure-config.pl(4.64 KB)
📄 pure-ftpd(182.06 KB)
📄 pure-ftpwho(26.82 KB)
📄 pure-mrtginfo(11.16 KB)
📄 pure-quotacheck(18.81 KB)
📄 pure-uploadscript(19.07 KB)
📄 pvchange(2.61 MB)
📄 pvck(2.61 MB)
📄 pvcreate(2.61 MB)
📄 pvdisplay(2.61 MB)
📄 pvmove(2.61 MB)
📄 pvremove(2.61 MB)
📄 pvresize(2.61 MB)
📄 pvs(2.61 MB)
📄 pvscan(2.61 MB)
📄 pwck(57.27 KB)
📄 pwconv(53.1 KB)
📄 pwhistory_helper(20.43 KB)
📄 pwunconv(53.13 KB)
📄 quot(78.67 KB)
📄 quotacheck(115.75 KB)
📄 quotaoff(83.16 KB)
📄 quotaon(83.16 KB)
📄 quotastats(16.54 KB)
📄 raid-check(3.7 KB)
📄 rcmysql(0 B)
📄 rdisc(24.55 KB)
📄 rdma(187.38 KB)
📄 readprofile(20.55 KB)
📄 realm(144.26 KB)
📄 reboot(218.45 KB)
📄 repquota(83.24 KB)
📄 request-key(24.38 KB)
📄 resize2fs(64.91 KB)
📄 resizepart(41.56 KB)
📄 resolvconf(195.74 KB)
📄 restorecon(20.53 KB)
📄 restorecon_xattr(16.41 KB)
📄 rfkill(53.46 KB)
📄 rmmod(159.95 KB)
📄 rndc(36.53 KB)
📄 rndc-confgen(20.45 KB)
📄 rotatelogs(30.51 KB)
📄 route(67.63 KB)
📄 rpc.gssd(106.55 KB)
📄 rpc.idmapd(61.73 KB)
📄 rpc.mountd(158.92 KB)
📄 rpc.nfsd(49.91 KB)
📄 rpc.statd(103.29 KB)
📄 rpcbind(61.55 KB)
📄 rpcctl(9.41 KB)
📄 rpcdebug(19.38 KB)
📄 rpcinfo(32.64 KB)
📄 rsyslogd(724.73 KB)
📄 rtacct(46.94 KB)
📄 rtcwake(49.31 KB)
📄 rtmon(117.27 KB)
📄 rtstat(25.33 KB)
📄 runlevel(218.45 KB)
📄 runq(1.49 MB)
📄 runuser(48.99 KB)
📄 sa(46.62 KB)
📄 sasldblistusers2(20.77 KB)
📄 saslpasswd2(16.42 KB)
📄 sefcontext_compile(65.35 KB)
📄 selabel_digest(12.28 KB)
📄 selabel_lookup(12.27 KB)
📄 selabel_lookup_best_match(11.89 KB)
📄 selabel_partial_match(11.88 KB)
📄 selinux_check_access(12.36 KB)
📄 selinuxconlist(11.88 KB)
📄 selinuxdefcon(11.88 KB)
📄 selinuxenabled(7.84 KB)
📄 selinuxexeccon(11.86 KB)
📄 semodule(29.27 KB)
📄 sendmail(16.91 KB)
📄 service(3.64 KB)
📄 sestatus(20.41 KB)
📄 setcap(16.27 KB)
📄 setenforce(12.27 KB)
📄 setfiles(20.53 KB)
📄 setpci(28.56 KB)
📄 setquota(91.38 KB)
📄 setsebool(16.38 KB)
📄 sfdisk(118.5 KB)
📄 showmount(21.06 KB)
📄 shutdown(218.45 KB)
📄 sim_server(11.87 KB)
📄 slattach(43.76 KB)
📄 sm-notify(78.14 KB)
📄 smartctl(907.08 KB)
📄 smartd(733.2 KB)
📄 snmpd(32.45 KB)
📄 snmptrapd(32.6 KB)
📄 sos(627 B)
📄 sos-collector(139 B)
📄 sosreport(132 B)
📄 ss(191.3 KB)
📄 sshd(869.77 KB)
📄 sss_cache(61.09 KB)
📄 sssd(73.01 KB)
📄 start-statd(838 B)
📄 start-stop-daemon(45.98 KB)
📄 suexec(25.3 KB)
📄 sulogin(49.24 KB)
📄 suphp(6.56 MB)
📄 swaplabel(16.5 KB)
📄 swapoff(20.74 KB)
📄 swapon(49.4 KB)
📄 switch_root(16.49 KB)
📄 sysctl(28.88 KB)
📄 syspurpose(415 B)
📄 tcpdump(1.01 MB)
📄 tcpslice(32.63 KB)
📄 tcsd(309.72 KB)
📄 telinit(218.45 KB)
📄 thin_check(1.43 MB)
📄 thin_delta(1.43 MB)
📄 thin_dump(1.43 MB)
📄 thin_ls(1.43 MB)
📄 thin_metadata_pack(907.47 KB)
📄 thin_metadata_size(1.43 MB)
📄 thin_metadata_unpack(895.45 KB)
📄 thin_repair(1.43 MB)
📄 thin_restore(1.43 MB)
📄 thin_rmap(1.43 MB)
📄 thin_trim(1.43 MB)
📄 timedatex(33.43 KB)
📄 tipc(163.07 KB)
📄 tmpwatch(35.47 KB)
📄 tracepath(20.44 KB)
📄 tracepath6(20.44 KB)
📄 tsig-keygen(20.46 KB)
📄 tune2fs(110.63 KB)
📄 tuned(3.88 KB)
📄 tuned-adm(6.5 KB)
📄 udevadm(424.59 KB)
📄 umount.nfs(197.24 KB)
📄 umount.nfs4(197.24 KB)
📄 unbound-anchor(57.34 KB)
📄 unix_chkpwd(36.86 KB)
📄 unix_update(36.87 KB)
📄 unsquashfs(99.57 KB)
📄 update-alternatives(36.66 KB)
📄 update-pciids(1.71 KB)
📄 update-smart-drivedb(14.44 KB)
📄 useradd(148.17 KB)
📄 userdel(107.29 KB)
📄 usermod(144.07 KB)
📄 usernetctl(12.4 KB)
📄 uuserver(15.88 KB)
📄 vdpa(118.04 KB)
📄 vgcfgbackup(2.61 MB)
📄 vgcfgrestore(2.61 MB)
📄 vgchange(2.61 MB)
📄 vgck(2.61 MB)
📄 vgconvert(2.61 MB)
📄 vgcreate(2.61 MB)
📄 vgdisplay(2.61 MB)
📄 vgexport(2.61 MB)
📄 vgextend(2.61 MB)
📄 vgimport(2.61 MB)
📄 vgimportclone(2.61 MB)
📄 vgimportdevices(2.61 MB)
📄 vgmerge(2.61 MB)
📄 vgmknodes(2.61 MB)
📄 vgreduce(2.61 MB)
📄 vgremove(2.61 MB)
📄 vgrename(2.61 MB)
📄 vgs(2.61 MB)
📄 vgscan(2.61 MB)
📄 vgsplit(2.61 MB)
📄 vigr(68.05 KB)
📄 vipw(68.05 KB)
📄 virt-what(14.22 KB)
📄 visudo(239.22 KB)
📄 vmcore-dmesg(28.58 KB)
📄 vpddecode(16.47 KB)
📄 weak-modules(33.6 KB)
📄 whmapi0(3.18 MB)
📄 whmapi1(3.18 MB)
📄 whmlogin(2.33 KB)
📄 wipefs(41.11 KB)
📄 xfs_admin(1.38 KB)
📄 xfs_bmap(695 B)
📄 xfs_copy(434.59 KB)
📄 xfs_db(760.47 KB)
📄 xfs_estimate(12.39 KB)
📄 xfs_freeze(800 B)
📄 xfs_fsr(53.41 KB)
📄 xfs_growfs(422.48 KB)
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Editing: nfsdclddb

#!/usr/libexec/platform-python
"""Tool for manipulating the nfsdcld sqlite database
"""

__copyright__ = """
Copyright (C) 2019 Scott Mayhew <smayhew@redhat.com>

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA  02110-1301, USA.
"""

import argparse
import os
import sqlite3
import sys

class CldDb():
    def __init__(self, path):
        self.con = sqlite3.connect(path)
        self.con.row_factory = sqlite3.Row
        for row in self.con.execute('select value from parameters '
                                    'where key = "version"'):
            self.version = int(row['value'])
        for row in self.con.execute('select * from grace'):
            self.current = int(row['current'])
            self.recovery = int(row['recovery'])

def __del__(self):
        self.con.close()

def __str__(self):
        return ('Schema version: {self.version} '
                'current epoch: {self.current} '
                'recovery epoch: {self.recovery}'.format(self=self))

def _print_clients(self, epoch):
        if epoch:
            for row in self.con.execute('select * from "rec-{:016x}"'
                                        .format(epoch)):
                if self.version >= 4:
                    if row['princhash'] is not None:
                        princhash = row['princhash'].hex()
                    else:
                        princhash = "(null)"
                    print('id = {}, princhash = {}'
                          .format(row['id'].decode(), princhash))
                else:
                    print('id = {}'.format(row['id'].decode()))

def print_current_clients(self):
        print('Clients in current epoch:')
        self._print_clients(self.current)

def print_recovery_clients(self):
        if self.recovery:
            print('Clients in recovery epoch:')
            self._print_clients(self.recovery)

def check_bad_table_names(self):
        bad_names = []
        for row in self.con.execute('select name from sqlite_master '
                                    'where type = "table" '
                                    'and name like "%rec-%" '
                                    'and length(name) < 20'):
            bad_names.append(row['name'])
        return bad_names

def fix_bad_table_names(self):
        try:
            self.con.execute('begin exclusive transaction')
            bad_names = self.check_bad_table_names()
            for bad_name in bad_names:
                epoch = int(bad_name.split('-')[1], base=16)
                if epoch == self.current or epoch == self.recovery:
                    if epoch == self.current:
                        which = 'current'
                    else:
                        which = 'recovery'
                    print('found invalid table name {} for {} epoch'
                          .format(bad_name, which))
                    self.con.execute('alter table "{}" '
                                     'rename to "rec-{:016x}"'
                                     .format(bad_name, epoch))
                    print('renamed to rec-{:016x}'.format(epoch))
                else:
                    print('found invalid table name {} for unknown epoch {}'
                          .format(bad_name, epoch))
                    self.con.execute('drop table "{}"'.format(bad_name))
                    print('dropped table {}'.format(bad_name))
        except sqlite3.Error:
            self.con.rollback()
        else:
            self.con.commit()

def has_princ_data(self):
        if self.version < 4:
            return False
        for row in self.con.execute('select count(*) '
                                    'from "rec-{:016x}" '
                                    'where princhash not null'
                                    .format(self.current)):
            count = row[0]
        if self.recovery:
            for row in self.con.execute('select count(*) '
                                        'from "rec-{:016x}" '
                                        'where princhash not null'
                                        .format(self.current)):
                count = count + row[0]
        if count:
            return True
        return False

def _downgrade_table_v4_to_v3(self, epoch):
        if not self.con.in_transaction:
            raise sqlite3.Error
        try:
            self.con.execute('create table "new_rec-{:016x}" '
                             '(id blob primary key)'.format(epoch))
            self.con.execute('insert into "new_rec-{:016x}" '
                             'select id from "rec-{:016x}"'
                             .format(epoch, epoch))
            self.con.execute('drop table "rec-{:016x}"'.format(epoch))
            self.con.execute('alter table "new_rec-{:016x}" '
                             'rename to "rec-{:016x}"'
                             .format(epoch, epoch))
        except sqlite3.Error:
            raise

def downgrade_schema_v4_to_v3(self):
        try:
            self.con.execute('begin exclusive transaction')
            for row in self.con.execute('select value from parameters '
                                        'where key = "version"'):
                version = int(row['value'])
            if version != self.version:
                raise sqlite3.Error
            for row in self.con.execute('select * from grace'):
                current = int(row['current'])
                recovery = int(row['recovery'])
            if current != self.current:
                raise sqlite3.Error
            if recovery != self.recovery:
                raise sqlite3.Error
            self._downgrade_table_v4_to_v3(current)
            if recovery:
                self._downgrade_table_v4_to_v3(recovery)
            self.con.execute('update parameters '
                             'set value = "3" '
                             'where key = "version"')
            self.version = 3
        except sqlite3.Error:
            self.con.rollback()
            print('Downgrade failed')
        else:
            self.con.commit()
            print('Downgrade successful')

def nfsdcld_active():
    rc = os.system('ps -C nfsdcld >/dev/null 2>/dev/null')
    if rc == 0:
        return True
    return False

def fix_table_names_command(db, args):
    if nfsdcld_active():
        print('Warning: nfsdcld is running!')
        ans = input('Continue? ')
        if ans.lower() not in ['y', 'yes']:
            print('Operation canceled.')
            return
    bad_names = db.check_bad_table_names()
    if not bad_names:
        print('No invalid table names found.')
        return
    db.fix_bad_table_names()

def downgrade_schema_command(db, args):
    if nfsdcld_active():
        print('Warning: nfsdcld is running!')
        ans = input('Continue? ')
        if ans.lower() not in ['y', 'yes']:
            print('Operation canceled')
            return
    if db.version != 4:
        print('Cannot downgrade database from schema version {}.'
              .format(db.version))
        return
    if args.version != 3:
        print('Cannot downgrade to version {}.'.format(args.version))
        return
    bad_names = db.check_bad_table_names()
    if bad_names:
        print('Invalid table names detected.')
        print('Please run "{} fix-table-names" before downgrading the schema.'
              .format(sys.argv[0]))
        return
    if db.has_princ_data():
        print('Warning: database has principal data, which will be erased.')
        ans = input('Continue? ')
        if ans.lower() not in ['y', 'yes']:
            print('Operation canceled')
            return
    db.downgrade_schema_v4_to_v3()

def print_command(db, args):
    print(str(db))
    if not args.summary:
        bad_names = db.check_bad_table_names()
        if bad_names:
            print('Invalid table names detected.')
            print('Please run "{} fix-table-names".'.format(sys.argv[0]))
            return
        db.print_current_clients()
        db.print_recovery_clients()

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('-p', '--path',
                        default='/var/lib/nfs/nfsdcld/main.sqlite',
                        help='path to the database '
                        '(default: /var/lib/nfs/nfsdcld/main.sqlite)')
    subparsers = parser.add_subparsers(help='sub-command help')
    fix_parser = subparsers.add_parser('fix-table-names',
                                       help='fix invalid table names')
    fix_parser.set_defaults(func=fix_table_names_command)
    downgrade_parser = subparsers.add_parser('downgrade-schema',
                                             help='downgrade database schema')
    downgrade_parser.add_argument('-v', '--version', type=int, choices=[3],
                                  default=3,
                                  help='version to downgrade to')
    downgrade_parser.set_defaults(func=downgrade_schema_command)
    print_parser = subparsers.add_parser('print',
                                         help='print database info')
    print_parser.add_argument('-s', '--summary', default=False,
                              action='store_true',
                              help='print summary only')
    print_parser.set_defaults(func=print_command)
    args = parser.parse_args()
    if not os.path.exists(args.path):
        return parser.print_usage()
    clddb = CldDb(args.path)
    return args.func(clddb, args)

if __name__ == '__main__':
    if len(sys.argv) == 1:
        sys.argv.extend(['print', '--summary'])
    main()

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