Gecko [ betsfootball.net ]

Name	Size	Permission	Date
a2disconf	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2dismod	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2dissite	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2enconf	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2enmod	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2ensite	15.86 KB	-rwxr-xr-x	2024-10-04 15:16
a2query	9.6 KB	-rwxr-xr-x	2024-10-04 15:21
aa-remove-unknown	3.13 KB	-rwxr-xr-x	2023-02-14 11:49
aa-status	38.3 KB	-rwxr-xr-x	2023-02-14 11:49
aa-teardown	137 B	-rwxr-xr-x	2022-11-22 00:54
accessdb	14.46 KB	-rwxr-xr-x	2023-03-12 22:23
add-shell	1.03 KB	-rwxr-xr-x	2023-07-28 23:46
addgnupghome	3 KB	-rwxr-xr-x	2023-03-26 13:03
addgroup	47.25 KB	-rwxr-xr-x	2023-05-25 15:54
adduser	47.25 KB	-rwxr-xr-x	2023-05-25 15:54
agetty	67.49 KB	-rwxr-xr-x	2024-11-21 20:01
apache2	712.5 KB	-rwxr-xr-x	2024-10-04 15:21
apache2ctl	7.19 KB	-rwxr-xr-x	2024-10-04 15:16
apachectl	7.19 KB	-rwxr-xr-x	2024-10-04 15:16
apparmor_parser	1.39 MB	-rwxr-xr-x	2023-02-14 11:49
apparmor_status	38.3 KB	-rwxr-xr-x	2023-02-14 11:49
applygnupgdefaults	2.17 KB	-rwxr-xr-x	2023-03-26 13:03
arpd	104.48 KB	-rwxr-xr-x	2023-05-22 13:19
arptables	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
arptables-nft	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
arptables-nft-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
arptables-nft-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
arptables-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
arptables-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
aspell-autobuildhash	13.36 KB	-rwxr-xr-x	2023-03-14 21:17
badblocks	34.25 KB	-rwxr-xr-x	2023-03-05 03:16
biosdecode	27.13 KB	-rwxr-xr-x	2022-06-30 18:37
blkdeactivate	15.96 KB	-rwxr-xr-x	2022-10-19 19:37
blkdiscard	34.31 KB	-rwxr-xr-x	2024-11-21 20:01
blkid	122.34 KB	-rwxr-xr-x	2024-11-21 20:01
blkzone	78.31 KB	-rwxr-xr-x	2024-11-21 20:01
blockdev	78.31 KB	-rwxr-xr-x	2024-11-21 20:01
bridge	152.54 KB	-rwxr-xr-x	2023-05-22 13:19
capsh	53.29 KB	-rwxr-xr-x	2023-05-15 18:34
cfdisk	106.66 KB	-rwxr-xr-x	2024-11-21 20:01
chcpu	46.3 KB	-rwxr-xr-x	2024-11-21 20:01
check_forensic	952 B	-rwxr-xr-x	2011-04-26 15:10
chgpasswd	66.29 KB	-rwxr-xr-x	2023-03-23 12:40
chmem	66.31 KB	-rwxr-xr-x	2024-11-21 20:01
chpasswd	62.36 KB	-rwxr-xr-x	2023-03-23 12:40
chroot	46.98 KB	-rwxr-xr-x	2022-09-20 15:27
cpgr	60.43 KB	-rwxr-xr-x	2023-03-23 12:40
cppw	60.43 KB	-rwxr-xr-x	2023-03-23 12:40
cron	50.56 KB	-rwxr-xr-x	2023-03-02 07:33
ctrlaltdel	38.3 KB	-rwxr-xr-x	2024-11-21 20:01
dcb	144.6 KB	-rwxr-xr-x	2023-05-22 13:19
debugfs	233.83 KB	-rwxr-xr-x	2023-03-05 03:16
delgroup	16.33 KB	-rwxr-xr-x	2023-05-25 15:54
deluser	16.33 KB	-rwxr-xr-x	2023-05-25 15:54
depmod	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
devlink	220.98 KB	-rwxr-xr-x	2023-05-22 13:19
dhclient	2.63 MB	-rwxr-xr-x	2023-04-17 12:20
dhclient-script	14.21 KB	-rwxr-xr-x	2023-04-17 12:20
discover	23.23 KB	-rwxr-xr-x	2022-01-09 07:48
discover-modprobe	4.9 KB	-rwxr-xr-x	2022-01-09 07:48
discover-pkginstall	5.66 KB	-rwxr-xr-x	2022-01-09 07:48
dmidecode	127.16 KB	-rwxr-xr-x	2022-06-30 18:37
dmsetup	166.98 KB	-rwxr-xr-x	2022-10-19 19:37
dmstats	166.98 KB	-rwxr-xr-x	2022-10-19 19:37
dpkg-fsys-usrunmess	16.99 KB	-rwxr-xr-x	2023-05-11 02:04
dpkg-preconfigure	3.83 KB	-rwxr-xr-x	2023-01-08 21:50
dpkg-reconfigure	4.38 KB	-rwxr-xr-x	2023-01-08 21:50
dumpe2fs	30.31 KB	-rwxr-xr-x	2023-03-05 03:16
e2freefrag	14.3 KB	-rwxr-xr-x	2023-03-05 03:16
e2fsck	348.27 KB	-rwxr-xr-x	2023-03-05 03:16
e2image	54.45 KB	-rwxr-xr-x	2023-03-05 03:16
e2label	114.52 KB	-rwxr-xr-x	2023-03-05 03:16
e2mmpstatus	30.31 KB	-rwxr-xr-x	2023-03-05 03:16
e2scrub	7.12 KB	-rwxr-xr-x	2023-03-05 03:16
e2scrub_all	5.27 KB	-rwxr-xr-x	2023-03-05 03:16
e2undo	22.3 KB	-rwxr-xr-x	2023-03-05 03:16
e4crypt	26.3 KB	-rwxr-xr-x	2023-03-05 03:16
e4defrag	30.23 KB	-rwxr-xr-x	2023-03-05 03:16
ebtables	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-nft	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-nft-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-nft-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ebtables-translate	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
faillock	14.24 KB	-rwxr-xr-x	2023-09-21 20:55
fdisk	158.35 KB	-rwxr-xr-x	2024-11-21 20:01
filefrag	18.26 KB	-rwxr-xr-x	2023-03-05 03:16
findfs	14.3 KB	-rwxr-xr-x	2024-11-21 20:01
fsck	54.36 KB	-rwxr-xr-x	2024-11-21 20:01
fsck.cramfs	42.37 KB	-rwxr-xr-x	2024-11-21 20:01
fsck.ext2	348.27 KB	-rwxr-xr-x	2023-03-05 03:16
fsck.ext3	348.27 KB	-rwxr-xr-x	2023-03-05 03:16
fsck.ext4	348.27 KB	-rwxr-xr-x	2023-03-05 03:16
fsck.minix	122.34 KB	-rwxr-xr-x	2024-11-21 20:01
fsfreeze	14.3 KB	-rwxr-xr-x	2024-11-21 20:01
fstab-decode	14.23 KB	-rwxr-xr-x	2023-04-03 06:25
fstrim	74.31 KB	-rwxr-xr-x	2024-11-21 20:01
genl	116.51 KB	-rwxr-xr-x	2023-05-22 13:19
getcap	14.23 KB	-rwxr-xr-x	2023-05-15 18:34
getpcaps	14.23 KB	-rwxr-xr-x	2023-05-15 18:34
getty	67.49 KB	-rwxr-xr-x	2024-11-21 20:01
groupadd	99.04 KB	-rwxr-xr-x	2023-03-23 12:40
groupdel	90.85 KB	-rwxr-xr-x	2023-03-23 12:40
groupmems	66.33 KB	-rwxr-xr-x	2023-03-23 12:40
groupmod	99.01 KB	-rwxr-xr-x	2023-03-23 12:40
grpck	66.3 KB	-rwxr-xr-x	2023-03-23 12:40
grpconv	58.14 KB	-rwxr-xr-x	2023-03-23 12:40
grpunconv	58.14 KB	-rwxr-xr-x	2023-03-23 12:40
grub-bios-setup	934.42 KB	-rwxr-xr-x	2023-10-02 14:11
grub-install	1.14 MB	-rwxr-xr-x	2023-10-02 14:11
grub-macbless	922.26 KB	-rwxr-xr-x	2023-10-02 14:11
grub-mkconfig	8.46 KB	-rwxr-xr-x	2023-10-02 14:11
grub-mkdevicemap	216.7 KB	-rwxr-xr-x	2023-10-02 14:11
grub-probe	934.57 KB	-rwxr-xr-x	2023-10-02 14:11
grub-reboot	4.73 KB	-rwxr-xr-x	2023-10-02 14:11
grub-set-default	3.47 KB	-rwxr-xr-x	2023-10-02 14:11
halt	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
httxt2dbm	14.23 KB	-rwxr-xr-x	2024-10-04 15:21
hwclock	86.44 KB	-rwxr-xr-x	2024-11-21 20:01
iconvconfig	30.84 KB	-rwxr-xr-x	2025-03-06 22:46
ifdown	86.16 KB	-rwxr-xr-x	2023-01-24 13:07
ifquery	86.16 KB	-rwxr-xr-x	2023-01-24 13:07
ifup	86.16 KB	-rwxr-xr-x	2023-01-24 13:07
init	90.38 KB	-rwxr-xr-x	2025-03-06 14:56
insmod	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
install-sgmlcatalog	4.44 KB	-rwxr-xr-x	2022-10-06 18:03
installkernel	2.6 KB	-rwxr-xr-x	2023-07-28 23:46
invoke-rc.d	16.13 KB	-rwxr-xr-x	2022-07-02 15:23
ip	674.82 KB	-rwxr-xr-x	2023-05-22 13:19
ip6tables	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-apply	6.87 KB	-rwxr-xr-x	2023-01-12 10:27
ip6tables-legacy	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-legacy-restore	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-legacy-save	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-nft	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-nft-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-nft-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-restore-translate	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
ip6tables-translate	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-apply	6.87 KB	-rwxr-xr-x	2023-01-12 10:27
iptables-legacy	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-legacy-restore	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-legacy-save	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-nft	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-nft-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-nft-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-restore	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-restore-translate	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-save	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
iptables-translate	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
isosize	30.31 KB	-rwxr-xr-x	2024-11-21 20:01
ispell-autobuildhash	15.52 KB	-rwxr-xr-x	2023-03-14 21:17
iucode-tool	58.26 KB	-rwxr-xr-x	2023-02-17 19:51
iucode_tool	58.26 KB	-rwxr-xr-x	2023-02-17 19:51
kbdrate	14.52 KB	-rwxr-xr-x	2023-03-23 09:34
killall5	26.31 KB	-rwxr-xr-x	2023-04-03 06:25
ldattach	34.31 KB	-rwxr-xr-x	2024-11-21 20:01
ldconfig	959.84 KB	-rwxr-xr-x	2025-03-06 22:46
locale-gen	1.38 KB	-rwxr-xr-x	2025-03-06 22:46
logrotate	98.16 KB	-rwxr-xr-x	2022-12-14 18:16
logsave	14.09 KB	-rwxr-xr-x	2023-03-05 03:16
losetup	114.42 KB	-rwxr-xr-x	2024-11-21 20:01
lsmod	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
make-ssl-cert	6.65 KB	-rwxr-xr-x	2021-12-30 16:52
mariadbd	25.77 MB	-rwxr-xr-x	2025-02-19 00:56
mke2fs	138.58 KB	-rwxr-xr-x	2023-03-05 03:16
mkfs	14.3 KB	-rwxr-xr-x	2024-11-21 20:01
mkfs.bfs	34.31 KB	-rwxr-xr-x	2024-11-21 20:01
mkfs.cramfs	42.24 KB	-rwxr-xr-x	2024-11-21 20:01
mkfs.ext2	138.58 KB	-rwxr-xr-x	2023-03-05 03:16
mkfs.ext3	138.58 KB	-rwxr-xr-x	2023-03-05 03:16
mkfs.ext4	138.58 KB	-rwxr-xr-x	2023-03-05 03:16
mkfs.minix	110.32 KB	-rwxr-xr-x	2024-11-21 20:01
mkhomedir_helper	22.27 KB	-rwxr-xr-x	2023-09-21 20:55
mkinitramfs	12.4 KB	-rwxr-xr-x	2024-08-24 23:14
mklost+found	14.23 KB	-rwxr-xr-x	2023-03-05 03:16
mkswap	114.31 KB	-rwxr-xr-x	2024-11-21 20:01
modinfo	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
modprobe	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
mysqld	25.77 MB	-rwxr-xr-x	2025-02-19 00:56
newusers	102.92 KB	-rwxr-xr-x	2023-03-23 12:40
nfnl_osf	18.23 KB	-rwxr-xr-x	2023-01-16 13:44
nft	26.15 KB	-rwxr-xr-x	2023-09-16 05:47
nginx	1.2 MB	-rwxr-xr-x	2025-02-17 19:40
nologin	14.23 KB	-rwxr-xr-x	2023-03-23 12:40
ownership	14.38 KB	-rwxr-xr-x	2022-06-30 18:37
pam-auth-update	20.79 KB	-rwxr-xr-x	2023-09-21 20:55
pam_getenv	2.82 KB	-rwxr-xr-x	2023-09-21 20:55
pam_namespace_helper	467 B	-rwxr-xr-x	2023-09-21 20:55
pam_timestamp_check	14.24 KB	-rwxr-xr-x	2023-09-21 20:55
php-fpm8.4	5.68 MB	-rwxr-xr-x	2025-10-01 20:26
phpdismod	7.11 KB	-rwxr-xr-x	2025-03-09 16:33
phpenmod	7.11 KB	-rwxr-xr-x	2025-03-09 16:33
phpquery	6.24 KB	-rwxr-xr-x	2025-03-09 16:33
pivot_root	14.3 KB	-rwxr-xr-x	2024-11-21 20:01
poweroff	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
pwck	58.26 KB	-rwxr-xr-x	2023-03-23 12:40
pwconv	54.13 KB	-rwxr-xr-x	2023-03-23 12:40
pwhistory_helper	18.24 KB	-rwxr-xr-x	2023-09-21 20:55
pwunconv	54.17 KB	-rwxr-xr-x	2023-03-23 12:40
qemu-ga	985.25 KB	-rwxr-xr-x	2025-01-04 14:47
readprofile	34.34 KB	-rwxr-xr-x	2024-11-21 20:01
reboot	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
remove-default-ispell	2.86 KB	-rwxr-xr-x	2023-03-14 21:17
remove-default-wordlist	2.86 KB	-rwxr-xr-x	2023-03-14 21:17
remove-shell	1.08 KB	-rwxr-xr-x	2023-07-28 23:46
resize2fs	62.3 KB	-rwxr-xr-x	2023-03-05 03:16
rmmod	174.27 KB	-rwxr-xr-x	2022-12-10 00:02
rmt	59.02 KB	-rwxr-xr-x	2024-01-20 09:27
rmt-tar	59.02 KB	-rwxr-xr-x	2024-01-20 09:27
rtacct	44.37 KB	-rwxr-xr-x	2023-05-22 13:19
rtcwake	46.31 KB	-rwxr-xr-x	2024-11-21 20:01
rtmon	112.45 KB	-rwxr-xr-x	2023-05-22 13:19
runlevel	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
runuser	70.31 KB	-rwxr-xr-x	2024-11-21 20:01
select-default-ispell	3.23 KB	-rwxr-xr-x	2023-03-14 21:17
select-default-wordlist	3.21 KB	-rwxr-xr-x	2023-03-14 21:17
service	8.89 KB	-rwxr-xr-x	2022-09-18 01:53
setcap	14.23 KB	-rwxr-xr-x	2023-05-15 18:34
setvesablank	14.51 KB	-rwxr-xr-x	2023-03-23 09:34
sfdisk	142.3 KB	-rwxr-xr-x	2024-11-21 20:01
shadowconfig	2.22 KB	-rwxr-xr-x	2022-11-11 08:28
shutdown	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
split-logfile	2.36 KB	-rwxr-xr-x	2024-10-04 15:21
sshd	1.21 MB	-rwxr-xr-x	2025-02-14 13:06
start-stop-daemon	43.42 KB	-rwxr-xr-x	2023-05-11 02:04
sudo_logsrvd	244.57 KB	-rwxr-xr-x	2023-06-27 11:45
sudo_sendlog	151.41 KB	-rwxr-xr-x	2023-06-27 11:45
sulogin	54.31 KB	-rwxr-xr-x	2024-11-21 20:01
swaplabel	18.3 KB	-rwxr-xr-x	2024-11-21 20:01
swapoff	22.3 KB	-rwxr-xr-x	2024-11-21 20:01
swapon	50.3 KB	-rwxr-xr-x	2024-11-21 20:01
switch_root	18.3 KB	-rwxr-xr-x	2024-11-21 20:01
sysctl	30.31 KB	-rwxr-xr-x	2022-12-19 06:06
tarcat	936 B	-rwxr-xr-x	2024-01-20 09:27
tc	574 KB	-rwxr-xr-x	2023-05-22 13:19
tcptraceroute	1.56 KB	-rwxr-xr-x	2023-02-25 12:24
tcptraceroute.db	1.56 KB	-rwxr-xr-x	2023-02-25 12:24
telinit	1.29 MB	-rwxr-xr-x	2025-03-06 14:56
tipc	152.6 KB	-rwxr-xr-x	2023-05-22 13:19
traceroute	71.23 KB	-rwxr-xr-x	2023-02-25 12:24
tune2fs	114.52 KB	-rwxr-xr-x	2023-03-05 03:16
ufw	4.84 KB	-rwxr-xr-x	2023-05-18 14:03
unix_chkpwd	38.24 KB	-rwxr-sr-x	2023-09-21 20:55
unix_update	38.24 KB	-rwxr-xr-x	2023-09-21 20:55
update-ca-certificates	5.29 KB	-rwxr-xr-x	2023-03-11 08:47
update-catalog	9.17 KB	-rwxr-xr-x	2022-10-06 18:03
update-default-aspell	1 KB	-rwxr-xr-x	2023-03-14 21:17
update-default-ispell	9.68 KB	-rwxr-xr-x	2023-03-14 21:17
update-default-wordlist	7.5 KB	-rwxr-xr-x	2023-03-14 21:17
update-dictcommon-aspell	1 KB	-rwxr-xr-x	2023-03-14 21:17
update-dictcommon-hunspell	782 B	-rwxr-xr-x	2023-03-14 21:17
update-grub	64 B	-rwxr-xr-x	2023-10-02 14:11
update-grub2	64 B	-rwxr-xr-x	2023-10-02 14:11
update-initramfs	6.75 KB	-rwxr-xr-x	2024-08-22 19:30
update-locale	2.99 KB	-rwxr-xr-x	2025-03-06 22:46
update-mime	9.39 KB	-rwxr-xr-x	2021-11-29 13:07
update-passwd	38.49 KB	-rwxr-xr-x	2022-09-20 10:22
update-pciids	1.71 KB	-rwxr-xr-x	2023-01-17 23:50
update-rc.d	17.33 KB	-rwxr-xr-x	2022-07-02 15:23
update-shells	3.89 KB	-rwxr-xr-x	2023-07-28 23:46
update-xmlcatalog	16.88 KB	-rwxr-xr-x	2019-02-27 00:18
upgrade-from-grub-legacy	1.56 KB	-rwxr-xr-x	2023-10-02 14:11
useradd	155.8 KB	-rwxr-xr-x	2023-03-23 12:40
userdel	110.95 KB	-rwxr-xr-x	2023-03-23 12:40
usermod	143.61 KB	-rwxr-xr-x	2023-03-23 12:40
validlocale	1.73 KB	-rwxr-xr-x	2025-03-06 22:46
vcstime	14.38 KB	-rwxr-xr-x	2023-03-23 09:34
vdpa	116.66 KB	-rwxr-xr-x	2023-05-22 13:19
vigr	72.64 KB	-rwxr-xr-x	2023-03-23 12:40
vipw	72.64 KB	-rwxr-xr-x	2023-03-23 12:40
visudo	256.63 KB	-rwxr-xr-x	2023-06-27 11:45
vpddecode	14.51 KB	-rwxr-xr-x	2022-06-30 18:37
wipefs	46.31 KB	-rwxr-xr-x	2024-11-21 20:01
xtables-legacy-multi	88.98 KB	-rwxr-xr-x	2023-01-16 13:44
xtables-monitor	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
xtables-nft-multi	223.16 KB	-rwxr-xr-x	2023-01-16 13:44
zic	58.73 KB	-rwxr-xr-x	2025-03-06 22:46
zramctl	114.42 KB	-rwxr-xr-x	2024-11-21 20:01

Rename

#!/usr/bin/perl
#
# dpkg-fsys-usrunmess - Undoes the merged-/usr-via-aliased-dirs mess
#
# Copyright © 2020-2021 Guillem Jover <guillem@debian.org>
#
# 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, see <https://www.gnu.org/licenses/>

use strict;
use warnings;
use feature qw(state);

our ($PROGNAME) = $0 =~ m{(?:.*/)?([^/]*)};
our $PROGVERSION = '1.21.22';
our $ADMINDIR = '/var/lib/dpkg';

use POSIX;
use File::Temp qw(tempdir);
use File::Find;
use Getopt::Long qw(:config posix_default bundling_values no_ignorecase);

eval q{
    pop @INC if $INC[-1] eq '.';
    use File::FcntlLock;
};
if ($@) {
    fatal('missing File::FcntlLock module; please install libfile-fcntllock-perl');
}

my $opt_noact = length $ENV{DPKG_USRUNMESS_NOACT} ? 1 : 0;
my $opt_prompt = 0;
my $opt_prevent = -1;

my @options_spec = (
    'help|?' => sub { usage(); exit 0; },
    'version' => sub { version(); exit 0; },
    'dry-run|no-act|n' => \$opt_noact,
    'prompt|p' => \$opt_prompt,
    'prevention!' => \$opt_prevent,
);

{
    local $SIG{__WARN__} = sub { usageerr($_[0]) };
    GetOptions(@options_spec);
}

# Set a known umask.
umask 0022;

my @aliased_dirs;

#
# Scan all dirs under / and check whether any are aliased to /usr.
#

foreach my $path (glob '/*') {
    debug("checking symlink? $path");
    next unless -l $path;
    debug("checking merged-usr symlink? $path");
    my $symlink = readlink $path;
    next unless $symlink eq "usr$path" or $symlink eq "/usr$path";
    debug("merged-usr breakage, queueing $path");
    push @aliased_dirs, $path;
}

if (@aliased_dirs == 0) {
    print "System is fine, no aliased directories found, congrats!\n";
    exit 0;
}

#
# dpkg consistency checks
#

debug('checking dpkg database consistency');
system(qw(dpkg --audit)) == 0
    or fatal("cannot audit the dpkg database: $!");

debug('checking whether dpkg has been interrupted');
if (glob "$ADMINDIR/updates/*") {
    fatal('dpkg is in an inconsistent state, please fix that');
}

$opt_prevent = prompt('Generate and install a regression prevention package')
    if $opt_prevent < 0;

if ($opt_prevent) {
    debug('building regression prevention measures');
    my $tmpdir = tempdir(CLEANUP => 1, TMPDIR => 1);
    my $pkgdir = "$tmpdir/pkg";
    my $pkgfile = "$tmpdir/dpkg-fsys-usrunmess.deb";

mkdir "$pkgdir" or fatal('cannot create temporary package directory');
    mkdir "$pkgdir/DEBIAN" or fatal('cannot create temporary directory');
    open my $ctrl_fh, '>', "$pkgdir/DEBIAN/control"
        or fatal('cannot create temporary control file');
    print { $ctrl_fh } <<"CTRL";
Package: dpkg-fsys-usrunmess
Version: $PROGVERSION
Architecture: all
Protected: yes
Multi-Arch: foreign
Section: admin
Priority: optional
Maintainer: Dpkg Developers <debian-dpkg\@lists.debian.org>
Installed-Size: 5
Conflicts: usrmerge
Provides: usrmerge (= 25)
Replaces: usrmerge
Description: prevention measure to avoid unsuspected filesystem breakage
 This package will prevent automatic migration of the filesystem to the
 broken merge-/usr-via-aliased-dirs via the usrmerge package.
 .
 This package was generated and installed by the dpkg-fsys-usrunmess(8)
 program.

CTRL
    close $ctrl_fh or fatal('cannot write temporary control file');

system(('dpkg-deb', '-b', $pkgdir, $pkgfile)) == 0
        or fatal('cannot create prevention package');

if (not $opt_noact) {
        system(('dpkg', '-GBi', $pkgfile)) == 0
            or fatal('cannot install prevention package');
    }
} else {
    print "Will not generate and install a regression prevention package.\n";
}

my $aliased_regex = '^(' . join('|', @aliased_dirs) . ')/';

#
# Get a list of all paths (including diversion) under the aliased dirs.
#

my @search_args;
my %aliased_pathnames;
foreach my $dir (@aliased_dirs) {
    push @search_args, "$dir/*";
}

# We also need to track /usr/lib/modules to then be able to compute its
# complement when looking for untracked kernel module files under aliased
# dirs.
my %usr_mod_pathnames;
push @search_args, '/usr/lib/modules/*';

open my $fh_paths, '-|', 'dpkg-query', '--search', @search_args
    or fatal("cannot execute dpkg-query --search: $!");
while (<$fh_paths>) {
    if (m/^diversion by [^ ]+ from: .*$/) {
        # Ignore.
    } elsif (m/^diversion by [^ ]+ to: (.*)$/) {
        if (-e $1) {
            add_pathname($1, 'diverted pathname');
        }
    } elsif (m/^.*: (.*)$/) {
        add_pathname($1, 'pathname');
    }
}
close $fh_paths;

#
# Get a list of all update-alternatives under the aliased dirs.
#

my @selections = qx(update-alternatives --get-selections);
foreach my $selection (@selections) {
    my $name = (split(' ', $selection))[0];
    my $slaves = 0;

open my $fh_alts, '-|', 'update-alternatives', '--query', $name
        or fatal("cannot execute update-alternatives --query: $!");
    while (<$fh_alts>) {
        if (m/^\s*$/) {
            last;
        } elsif (m/^Link: (.*)$/) {
            add_pathname($1, 'alternative link');
        } elsif (m/^Slaves:\s*$/) {
            $slaves = 1;
        } elsif ($slaves and m/^\s\S+\s(\S+)$/) {
            add_pathname($1, 'alternative slave');
        } else {
            $slaves = 0;
        }
    }
    close $fh_alts;
}

#
# Unfortunately we need to special case untracked kernel module files,
# as these are required for system booting. To reduce potentially moving
# undesired non-kernel module files (such as apache, python or ruby ones),
# we only look for sub-dirs starting with a digit, which should match for
# both Linux and kFreeBSD modules, and also for the modprobe.conf filename.
#

find({
    no_chdir => 1,
    wanted => sub {
        my $path = $_;

if (exists $aliased_pathnames{$path}) {
            # Ignore pathname already handled.
        } elsif (exists $usr_mod_pathnames{"/usr$path"}) {
            # Ignore pathname owned elsewhere.
        } elsif ($path eq '/lib/modules' or
                 $path eq '/lib/modules/modprobe.conf' or
                 $path =~ m{^/lib/modules/[0-9]}) {
            add_pathname($path, 'untracked modules');
        }
    },
}, '/lib/modules');

my $sroot = '/.usrunmess';
my @relabel;

#
# Create a shadow hierarchy under / for the new unmessed dir:
#

debug("creating shadow dir = $sroot");
mkdir $sroot
    or sysfatal("cannot create directory $sroot");
foreach my $dir (@aliased_dirs) {
    debug("creating shadow dir = $sroot$dir");
    mkdir "$sroot$dir"
        or sysfatal("cannot create directory $sroot$dir");
    chmod 0755, "$sroot$dir"
        or sysfatal("cannot chmod 0755 $sroot$dir");
    chown 0, 0, "$sroot$dir"
        or sysfatal("cannot chown 0 0 $sroot$dir");
    push @relabel, "$sroot$dir";
}

#
# Populate the split dirs with hardlinks or copies of the objects from
# their counter-parts in /usr.
#

foreach my $pathname (sort keys %aliased_pathnames) {
    my (@meta) = lstat $pathname
        or sysfatal("cannot lstat object $pathname for shadow hierarchy");

if (-d _) {
        my $mode = $meta[2];
        my ($uid, $gid) = @meta[4, 5];
        my ($atime, $mtime, $ctime) = @meta[8, 9, 10];

debug("creating shadow dir = $sroot$pathname");
        mkdir "$sroot$pathname"
            or sysfatal("cannot mkdir $sroot$pathname");
        chmod $mode, "$sroot$pathname"
            or sysfatal("cannot chmod $mode $sroot$pathname");
        chown $uid, $gid, "$sroot$pathname"
            or sysfatal("cannot chown $uid $gid $sroot$pathname");
        utime $atime, $mtime, "$sroot$pathname"
            or sysfatal("cannot utime $atime $mtime $sroot$pathname");
        push @relabel, "$sroot$pathname";
    } elsif (-f _) {
        debug("creating shadow file = $sroot$pathname");
        copy("/usr$pathname", "$sroot$pathname");
    } elsif (-l _) {
        my $target = readlink "/usr$pathname";

debug("creating shadow symlink = $sroot$pathname");
        symlink $target, "$sroot$pathname"
            or sysfatal("cannot symlink $target to $sroot$pathname");
        push @relabel, "$sroot$pathname";
    } else {
        fatal("unhandled object type for '$pathname'");
    }
}

#
# Prompt at the point of no return, if the user requested it.
#

if ($opt_prompt) {
    if (!prompt("Shadow hierarchy created at '$sroot', ready to proceed")) {
        print "Aborting migration, shadow hierarchy left in place.\n";
        exit 0;
    }
}

#
# Mark all packages as half-configured so that we can force a mass
# reconfiguration, to trigger any code in maintainer scripts that might
# create files.
#
# XXX: We do this manually by editing the status file.
# XXX: We do this for packages that might not have maintscripts, or might
#      not involve affected directories.
#

debug('marking all dpkg packages as half-configured');
if (not $opt_noact) {
    open my $fh_lock, '>', "$ADMINDIR/lock"
        or sysfatal('cannot open dpkg database lock file');
    my $fs = File::FcntlLock->new(l_type => F_WRLCK);
    $fs->lock($fh_lock, F_SETLKW)
        or sysfatal('cannot get a write lock on dpkg database');

my $file_db = "$ADMINDIR/status";
    my $file_dbnew = $file_db . '.new';

open my $fh_dbnew, '>', $file_dbnew
        or sysfatal('cannot open new dpkg database');
    open my $fh_db, '<', $file_db
        or sysfatal('cannot open dpkg database');
    while (<$fh_db>) {
        if (m/^Status: /) {
            s/ installed$/ half-configured/;
        }
        print { $fh_dbnew } $_;
    }
    close $fh_db;
    $fh_dbnew->flush() or sysfatal('cannot flush new dpkg database');
    $fh_dbnew->sync() or sysfatal('cannot fsync new dpkg database');
    close $fh_dbnew or sysfatal('cannot close new dpkg database');

rename $file_dbnew, $file_db
        or sysfatal('cannot rename new dpkg database');
}

#
# Replace things as quickly as possible:
#

foreach my $dir (@aliased_dirs) {
    debug("making dir backup = $dir.aliased");
    if (not $opt_noact) {
        rename $dir, "$dir.aliased"
            or sysfatal("cannot make backup directory $dir.aliased");
    }

debug("renaming $sroot$dir to $dir");
    if (not $opt_noact) {
        rename "$sroot$dir", $dir
            or sysfatal("cannot install fixed directory $dir");
    }
}

mac_relabel();

#
# Cleanup backup directories.
#

foreach my $dir (@aliased_dirs) {
    debug("removing backup = $dir.aliased");
    if (not $opt_noact) {
        unlink "$dir.aliased"
            or sysfatal("cannot cleanup backup directory $dir.aliased");
    }
}

my %deferred_dirnames;

#
# Cleanup moved objects.
#

foreach my $pathname (sort keys %aliased_pathnames) {
    my (@meta) = lstat $pathname
        or sysfatal("cannot lstat object $pathname for cleanup");

if (-d _) {
        # Skip directories as this might be shared by a proper path under the
        # aliased hierearchy. And so that we can remove them in reverse order.
        debug("deferring merged dir cleanup = /usr$pathname");
        $deferred_dirnames{"/usr$pathname"} = 1;
    } else {
        debug("cleaning up pathname = /usr$pathname");
        next if $opt_noact;
        unlink "/usr$pathname"
            or sysfatal("cannot unlink object /usr$pathname");
    }
}

#
# Cleanup deferred directories.
#

debug("cleaning up shadow deferred dir = $sroot");
my $arg_max = POSIX::sysconf(POSIX::_SC_ARG_MAX) // POSIX::_POSIX_ARG_MAX;
my @batch_dirs;
my $batch_size = 0;

foreach my $dir (keys %deferred_dirnames) {
    my $dir_size = length($dir) + 1;
    if ($batch_size + $dir_size < $arg_max) {
        $batch_size += length($dir) + 1;
        push @batch_dirs, $dir;

} else {
        next;
    }
    next if length $batch_size == 0;

open my $fh_dirs, '-|', 'dpkg-query', '--search', @batch_dirs
        or fatal("cannot execute dpkg-query --search: $!");
    while (<$fh_dirs>) {
        if (m/^.*: (.*)$/) {
            # If the directory is known by its aliased name, it should not be
            # cleaned up.
            if (exists $deferred_dirnames{$1}) {
                delete $deferred_dirnames{$1};
            }
        }
    }
    close $fh_dirs;

@batch_dirs = ();
    $batch_size = 0;
}

my @dirs_linger;

if (not $opt_noact) {
    foreach my $dirname (reverse sort keys %deferred_dirnames) {
        next if rmdir $dirname;
        warning("cannot remove shadow directory $dirname: $!");

push @dirs_linger, $dirname;
    }
}

if (not $opt_noact) {
    debug("cleaning up shadow root dir = $sroot");
    rmdir $sroot
        or warning("cannot remove shadow directory $sroot: $!");
}

#
# Re-configure all packages, so that postinst maintscripts are executed.
#

my $policypath = '/usr/sbin/dpkg-fsys-usrunmess-policy-rc.d';

debug('installing local policy-rc.d');
if (not $opt_noact) {
    open my $policyfh, '>', $policypath
        or sysfatal("cannot create $policypath");
    print { $policyfh } <<'POLICYRC';
#!/bin/sh
echo "$0: Denied action $2 for service $1"
exit 101
POLICYRC
    close $policyfh or fatal("cannot write $policypath");

my @alt = (qw(/usr/sbin/policy-rc.d policy-rc.d), $policypath, qw(1000));
    system(qw(update-alternatives --install), @alt) == 0
        or fatal("cannot register $policypath");

system(qw(update-alternatives --set policy-rc.d), $policypath) == 0
        or fatal("cannot select alternative $policypath");
}

debug('reconfiguring all packages');
if (not $opt_noact) {
    local $ENV{DEBIAN_FRONTEND} = 'noninteractive';
    system(qw(dpkg --configure --pending)) == 0
        or fatal("cannot reconfigure packages: $!");
}

debug('removing local policy-rc.d');
if (not $opt_noact) {
    system(qw(update-alternatives --remove policy-rc.d), $policypath) == 0
        or fatal("cannot unregister $policypath: $!");

unlink $policypath
        or warning("cannot remove $policypath");

# Restore the selections we saved initially.
    open my $altfh, '|-', qw(update-alternatives --set-selections)
        or fatal('cannot restore alternatives state');
    print { $altfh } $_ foreach @selections;
    close $altfh or fatal('cannot restore alternatives state');
}

print "\n";

if (@dirs_linger) {
    warning('lingering directories that could not be removed:');
    foreach my $dir (@dirs_linger) {
        warning("  $dir");
    }
}

print "Done, hierarchy unmessed, congrats!\n";
print "Rebooting now is very strongly advised.\n";

print "(Note: you might need to run 'hash -r' in your shell.)\n";

##
## Functions
##

sub debug
{
    my $msg = shift;

print { *STDERR } "D: $msg\n";
}

sub warning
{
    my $msg = shift;

warn "warning: $msg\n";
}

sub fatal
{
    my $msg = shift;

die "error: $msg\n";
}

sub sysfatal
{
    my $msg = shift;

fatal("$msg: $!");
}

sub copy
{
    my ($src, $dst) = @_;

# Try to hardlink first.
    return if link $src, $dst;

# If we are on different filesystems, try a copy.
    if ($! == POSIX::EXDEV) {
        # XXX: This will not preserve hardlinks, these would get restored
        # after the next package upgrade.
        system('cp', '-a', $src, $dst) == 0
            or fatal("cannot copy file $src to $dst: $?");
    } else {
        sysfatal("cannot link file $src to $dst");
    }
}

sub mac_relabel
{
    my $has_cmd = 0;
    foreach my $path (split /:/, $ENV{PATH}) {
        if (-x "$path/restorecon") {
            $has_cmd = 1;
            last;
        }
    }
    return unless $has_cmd;

foreach my $pathname (@relabel) {
        system('restorecon', $pathname) == 0
            or fatal("cannot restore MAC context for $pathname: $?");
    }
}

sub add_pathname
{
    my ($pathname, $origin) = @_;

if ($pathname =~ m{^/usr/lib/modules/}) {
        debug("tracking $origin = $pathname");
        $usr_mod_pathnames{$pathname} = 1;
    } elsif ($pathname =~ m/$aliased_regex/) {
        debug("adding $origin = $pathname");
        $aliased_pathnames{$pathname} = 1;
    }
}

sub prompt
{
    my $query = shift;

print "$query (y/N)? ";
    my $reply = <STDIN>;
    chomp $reply;

return 0 if $reply ne 'y' and $reply ne 'yes';
    return 1;
}

sub version()
{
    printf "Debian %s version %s.\n", $PROGNAME, $PROGVERSION;
}

sub usage
{
    printf
'Usage: %s [<option>...]'
    . "\n\n" .
'Options:
  -p, --prompt         prompt before the point of no return.
      --prevention     enable regression prevention package installation.
      --no-prevention  disable regression prevention package installation.
  -n, --no-act         just check and create the new structure, no switch.
      --dry-run        ditto.
  -?, --help           show this help message.
      --version        show the version.'
    . "\n", $PROGNAME;
}

sub usageerr
{
    my $msg = shift;

state $printforhelp = 'Use --help for program usage information.';

$msg = sprintf $msg, @_ if @_;
    warn "$PROGNAME: error: $msg\n";
    warn "$printforhelp\n";
    exit 2;
}