Gecko [ tsuru-no-tsurugi.tokyo ]

Name	Size	Permission	Date
aa-remove-unknown	3 KB	-rwxr-xr-x	2025-08-15 21:17
aa-status	62.62 KB	-rwxr-xr-x	2025-08-15 21:17
aa-teardown	137 B	-rwxr-xr-x	2022-02-10 09:45
add-shell	1.03 KB	-rwxr-xr-x	2022-03-23 22:49
addgroup	37.35 KB	-rwxr-xr-x	2021-01-06 15:16
adduser	37.35 KB	-rwxr-xr-x	2021-01-06 15:16
agetty	55.56 KB	-rwxr-xr-x	2024-04-10 00:32
apparmor_parser	1.48 MB	-rwxr-xr-x	2025-08-15 21:17
apparmor_status	62.62 KB	-rwxr-xr-x	2025-08-15 21:17
arpd	26.33 KB	-rwxr-xr-x	2022-03-24 20:56
arptables	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
arptables-nft	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
arptables-nft-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
arptables-nft-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
arptables-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
arptables-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
badblocks	34.32 KB	-rwxr-xr-x	2023-10-09 10:50
blkdeactivate	15.97 KB	-rwxr-xr-x	2024-11-28 04:04
blkdiscard	22.38 KB	-rwxr-xr-x	2024-04-10 00:32
blkid	50.41 KB	-rwxr-xr-x	2024-04-10 00:32
blkzone	34.38 KB	-rwxr-xr-x	2024-04-10 00:32
blockdev	30.38 KB	-rwxr-xr-x	2024-04-10 00:32
bridge	92.49 KB	-rwxr-xr-x	2022-03-24 20:56
capsh	30.3 KB	-rwxr-xr-x	2025-02-21 00:51
cfdisk	94.73 KB	-rwxr-xr-x	2024-04-10 00:32
chcpu	30.38 KB	-rwxr-xr-x	2024-04-10 00:32
chgpasswd	58.13 KB	-rwxr-xr-x	2024-02-06 21:54
chmem	34.38 KB	-rwxr-xr-x	2024-04-10 00:32
chpasswd	54.16 KB	-rwxr-xr-x	2024-02-06 21:54
chroot	38.51 KB	-rwxr-xr-x	2024-02-08 12:46
cpgr	48.29 KB	-rwxr-xr-x	2024-02-06 21:54
cppw	48.29 KB	-rwxr-xr-x	2024-02-06 21:54
cryptdisks_start	1.51 KB	-rwxr-xr-x	2022-01-14 06:44
cryptdisks_stop	844 B	-rwxr-xr-x	2022-01-14 06:44
cryptsetup	169.92 KB	-rwxr-xr-x	2025-03-08 02:50
cryptsetup-reencrypt	90.38 KB	-rwxr-xr-x	2025-03-08 02:50
cryptsetup-ssh	23.53 KB	-rwxr-xr-x	2025-03-08 02:50
ctrlaltdel	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
dcb	80.52 KB	-rwxr-xr-x	2022-03-24 20:56
debugfs	229.8 KB	-rwxr-xr-x	2023-10-09 10:50
delgroup	16.11 KB	-rwxr-xr-x	2021-01-06 15:16
deluser	16.11 KB	-rwxr-xr-x	2021-01-06 15:16
depmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
devlink	142.86 KB	-rwxr-xr-x	2022-03-24 20:56
dhclient	442.66 KB	-rwxr-xr-x	2023-02-01 06:54
dhclient-script	15.92 KB	-rwxr-xr-x	2023-02-01 06:54
dmsetup	171.02 KB	-rwxr-xr-x	2024-11-28 04:04
dmstats	171.02 KB	-rwxr-xr-x	2024-11-28 04:04
dosfsck	82.38 KB	-rwxr-xr-x	2022-03-23 22:51
dosfslabel	38.38 KB	-rwxr-xr-x	2022-03-23 22:51
dumpe2fs	30.31 KB	-rwxr-xr-x	2023-10-09 10:50
e2freefrag	14.3 KB	-rwxr-xr-x	2023-10-09 10:50
e2fsck	351.84 KB	-rwxr-xr-x	2023-10-09 10:50
e2image	42.31 KB	-rwxr-xr-x	2023-10-09 10:50
e2label	102.55 KB	-rwxr-xr-x	2023-10-09 10:50
e2mmpstatus	30.31 KB	-rwxr-xr-x	2023-10-09 10:50
e2scrub	7.13 KB	-rwxr-xr-x	2023-10-09 10:50
e2scrub_all	5.27 KB	-rwxr-xr-x	2023-10-09 10:50
e2undo	22.3 KB	-rwxr-xr-x	2023-10-09 10:50
e4crypt	30.38 KB	-rwxr-xr-x	2023-10-09 10:50
e4defrag	30.3 KB	-rwxr-xr-x	2023-10-09 10:50
ebtables	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ebtables-nft	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ebtables-nft-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ebtables-nft-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ebtables-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ebtables-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
faillock	14.15 KB	-rwxr-xr-x	2025-06-12 23:45
fatlabel	38.38 KB	-rwxr-xr-x	2022-03-23 22:51
fdisk	110.42 KB	-rwxr-xr-x	2024-04-10 00:32
filefrag	18.32 KB	-rwxr-xr-x	2023-10-09 10:50
findfs	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
fsck	42.42 KB	-rwxr-xr-x	2024-04-10 00:32
fsck.cramfs	30.44 KB	-rwxr-xr-x	2024-04-10 00:32
fsck.ext2	351.84 KB	-rwxr-xr-x	2023-10-09 10:50
fsck.ext3	351.84 KB	-rwxr-xr-x	2023-10-09 10:50
fsck.ext4	351.84 KB	-rwxr-xr-x	2023-10-09 10:50
fsck.fat	82.38 KB	-rwxr-xr-x	2022-03-23 22:51
fsck.minix	54.41 KB	-rwxr-xr-x	2024-04-10 00:32
fsck.msdos	82.38 KB	-rwxr-xr-x	2022-03-23 22:51
fsck.vfat	82.38 KB	-rwxr-xr-x	2022-03-23 22:51
fsfreeze	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
fstab-decode	18.3 KB	-rwxr-xr-x	2021-12-15 06:17
fstrim	42.38 KB	-rwxr-xr-x	2024-04-10 00:32
genl	90.44 KB	-rwxr-xr-x	2022-03-24 20:56
getcap	14.3 KB	-rwxr-xr-x	2025-02-21 00:51
getpcaps	14.3 KB	-rwxr-xr-x	2025-02-21 00:51
getty	55.56 KB	-rwxr-xr-x	2024-04-10 00:32
groupadd	66.91 KB	-rwxr-xr-x	2024-02-06 21:54
groupdel	62.73 KB	-rwxr-xr-x	2024-02-06 21:54
groupmems	54.19 KB	-rwxr-xr-x	2024-02-06 21:54
groupmod	66.82 KB	-rwxr-xr-x	2024-02-06 21:54
grpck	58.13 KB	-rwxr-xr-x	2024-02-06 21:54
grpconv	50.01 KB	-rwxr-xr-x	2024-02-06 21:54
grpunconv	50.01 KB	-rwxr-xr-x	2024-02-06 21:54
halt	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
hwclock	50.5 KB	-rwxr-xr-x	2024-04-10 00:32
iconvconfig	30.4 KB	-rwxr-xr-x	2026-01-30 17:20
init	1.76 MB	-rwxr-xr-x	2026-06-06 00:40
insmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
installkernel	2.6 KB	-rwxr-xr-x	2022-03-23 22:49
integritysetup	54.07 KB	-rwxr-xr-x	2025-03-08 02:50
invoke-rc.d	16.12 KB	-rwxr-xr-x	2021-12-08 06:55
ip	702.05 KB	-rwxr-xr-x	2025-10-03 22:53
ip6tables	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-apply	6.89 KB	-rwxr-xr-x	2021-01-16 07:03
ip6tables-legacy	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-legacy-restore	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-legacy-save	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-nft	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-nft-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-nft-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-restore-translate	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
ip6tables-translate	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-apply	6.89 KB	-rwxr-xr-x	2021-01-16 07:03
iptables-legacy	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-legacy-restore	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-legacy-save	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-nft	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-nft-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-nft-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-restore	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-restore-translate	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-save	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
iptables-translate	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
isosize	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
killall5	30.38 KB	-rwxr-xr-x	2021-12-15 06:17
ldattach	26.38 KB	-rwxr-xr-x	2024-04-10 00:32
ldconfig	387 B	-rwxr-xr-x	2026-01-30 17:20
ldconfig.real	1.16 MB	-rwxr-xr-x	2026-01-30 17:20
logsave	14.16 KB	-rwxr-xr-x	2023-10-09 10:50
losetup	70.52 KB	-rwxr-xr-x	2024-04-10 00:32
lsmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
luksformat	3.32 KB	-rwxr-xr-x	2022-01-14 06:44
mkdosfs	50.83 KB	-rwxr-xr-x	2022-03-23 22:51
mke2fs	130.62 KB	-rwxr-xr-x	2023-10-09 10:50
mkfs	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
mkfs.bfs	22.38 KB	-rwxr-xr-x	2024-04-10 00:32
mkfs.cramfs	34.32 KB	-rwxr-xr-x	2024-04-10 00:32
mkfs.ext2	130.62 KB	-rwxr-xr-x	2023-10-09 10:50
mkfs.ext3	130.62 KB	-rwxr-xr-x	2023-10-09 10:50
mkfs.ext4	130.62 KB	-rwxr-xr-x	2023-10-09 10:50
mkfs.fat	50.83 KB	-rwxr-xr-x	2022-03-23 22:51
mkfs.minix	42.39 KB	-rwxr-xr-x	2024-04-10 00:32
mkfs.msdos	50.83 KB	-rwxr-xr-x	2022-03-23 22:51
mkfs.vfat	50.83 KB	-rwxr-xr-x	2022-03-23 22:51
mkhomedir_helper	22.17 KB	-rwxr-xr-x	2025-06-12 23:45
mklost+found	14.3 KB	-rwxr-xr-x	2023-10-09 10:50
mkswap	46.38 KB	-rwxr-xr-x	2024-04-10 00:32
modinfo	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
modprobe	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
netplan	798 B	-rwxr-xr-x	2023-05-18 02:11
newusers	74.73 KB	-rwxr-xr-x	2024-02-06 21:54
nfnl_osf	18.3 KB	-rwxr-xr-x	2024-01-17 06:14
nologin	14.3 KB	-rwxr-xr-x	2024-02-06 21:54
pam-auth-update	20.5 KB	-rwxr-xr-x	2024-11-17 19:17
pam_extrausers_chkpwd	22.15 KB	-rwxr-sr-x	2025-06-12 23:45
pam_extrausers_update	30.15 KB	-rwxr-xr-x	2025-06-12 23:45
pam_getenv	2.82 KB	-rwxr-xr-x	2024-11-17 19:17
pam_timestamp_check	14.15 KB	-rwxr-xr-x	2025-06-12 23:45
pivot_root	14.38 KB	-rwxr-xr-x	2024-04-10 00:32
plymouthd	150.55 KB	-rwxr-xr-x	2023-01-03 18:56
poweroff	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
pwck	50.13 KB	-rwxr-xr-x	2024-02-06 21:54
pwconv	46.01 KB	-rwxr-xr-x	2024-02-06 21:54
pwunconv	42.01 KB	-rwxr-xr-x	2024-02-06 21:54
readprofile	22.41 KB	-rwxr-xr-x	2024-04-10 00:32
reboot	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
remove-shell	1.07 KB	-rwxr-xr-x	2022-03-23 22:49
resize2fs	66.3 KB	-rwxr-xr-x	2023-10-09 10:50
rfkill	30.23 KB	-rwxr-xr-x	2024-04-10 00:32
rmmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
rmt	58.57 KB	-rwxr-xr-x	2023-12-05 14:15
rmt-tar	58.57 KB	-rwxr-xr-x	2023-12-05 14:15
rtacct	28.31 KB	-rwxr-xr-x	2022-03-24 20:56
rtcwake	34.38 KB	-rwxr-xr-x	2024-04-10 00:32
rtmon	90.39 KB	-rwxr-xr-x	2022-03-24 20:56
runlevel	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
runuser	54.38 KB	-rwxr-xr-x	2024-04-10 00:32
service	8.88 KB	-rwxr-xr-x	2022-02-16 07:32
setcap	14.3 KB	-rwxr-xr-x	2025-02-21 00:51
sfdisk	102.38 KB	-rwxr-xr-x	2024-04-10 00:32
shadowconfig	885 B	-rwxr-xr-x	2021-11-12 00:42
shutdown	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
sshd	899.7 KB	-rwxr-xr-x	2025-04-11 21:05
start-stop-daemon	47.35 KB	-rwxr-xr-x	2025-09-10 05:09
sudo_logsrvd	200.1 KB	-rwxr-xr-x	2025-06-25 21:48
sudo_sendlog	107.34 KB	-rwxr-xr-x	2025-06-25 21:48
sulogin	42.38 KB	-rwxr-xr-x	2024-04-10 00:32
swaplabel	18.38 KB	-rwxr-xr-x	2024-04-10 00:32
swapoff	22.38 KB	-rwxr-xr-x	2024-04-10 00:32
swapon	42.38 KB	-rwxr-xr-x	2024-04-10 00:32
switch_root	22.38 KB	-rwxr-xr-x	2024-04-10 00:32
sysctl	30.23 KB	-rwxr-xr-x	2023-10-31 20:36
tarcat	936 B	-rwxr-xr-x	2023-12-05 14:15
tc	614.08 KB	-rwxr-xr-x	2022-03-24 20:56
telinit	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
tipc	90.44 KB	-rwxr-xr-x	2022-03-24 20:56
tune2fs	102.55 KB	-rwxr-xr-x	2023-10-09 10:50
tzconfig	106 B	-rwxr-xr-x	2025-04-22 19:15
unix_chkpwd	26.15 KB	-rwxr-sr-x	2025-06-12 23:45
unix_update	30.15 KB	-rwxr-xr-x	2025-06-12 23:45
update-ca-certificates	5.29 KB	-rwxr-xr-x	2024-09-25 02:46
update-passwd	34.56 KB	-rwxr-xr-x	2022-03-23 18:42
update-rc.d	16.92 KB	-rwxr-xr-x	2021-12-08 06:55
update-shells	3.72 KB	-rwxr-xr-x	2022-03-23 22:49
useradd	127.66 KB	-rwxr-xr-x	2024-02-06 21:54
userdel	86.85 KB	-rwxr-xr-x	2024-02-06 21:54
usermod	123.46 KB	-rwxr-xr-x	2024-02-06 21:54
vdpa	30.56 KB	-rwxr-xr-x	2022-03-24 20:56
veritysetup	43.76 KB	-rwxr-xr-x	2025-03-08 02:50
vigr	56.53 KB	-rwxr-xr-x	2024-02-06 21:54
vipw	56.53 KB	-rwxr-xr-x	2024-02-06 21:54
visudo	219.79 KB	-rwxr-xr-x	2025-06-25 21:48
wipefs	38.38 KB	-rwxr-xr-x	2024-04-10 00:32
wpa_action	1.69 KB	-rwxr-xr-x	2025-07-22 08:13
wpa_cli	140.31 KB	-rwxr-xr-x	2025-07-22 08:13
wpa_supplicant	3.24 MB	-rwxr-xr-x	2025-07-22 08:13
xtables-legacy-multi	96.95 KB	-rwxr-xr-x	2024-01-17 06:14
xtables-monitor	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
xtables-nft-multi	219.04 KB	-rwxr-xr-x	2024-01-17 06:14
zic	62.32 KB	-rwxr-xr-x	2026-01-30 17:20
zramctl	54.52 KB	-rwxr-xr-x	2024-04-10 00:32

Rename

#!/bin/sh

# Explicitly set the PATH to that of ENV_SUPATH in /etc/login.defs and unset
# various other variables. We need to do this so /sbin/dhclient cannot abuse
# the environment to escape AppArmor confinement via this script
# (LP: #1045986). This can be removed once AppArmor supports environment
# filtering (LP: #1045985)
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
export ENV=
export BASH_ENV=
export CDPATH=
export GLOBIGNORE=
export BASH_XTRACEFD=

# dhclient-script for Linux. Dan Halbert, March, 1997.
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
# Modified for Debian.  Matt Zimmerman and Eloy Paris, December 2003
# Modified to remove useless tests for antiquated kernel versions that
# this doesn't even work with anyway, and introduces a dependency on /usr
# being mounted, which causes cosmetic errors on hosts that NFS mount /usr
# Andrew Pollock, February 2005
# Modified to work on point-to-point links. Andrew Pollock, June 2005
# Modified to support passing the parameters called with to the hooks. Andrew Pollock, November 2005

# The alias handling in here probably still sucks. -mdz

# log an error.
error() { logger -p daemon.err "$@"; }

# wait for given file to be writable
wait_for_rw() {
    local file=$1
    # Find out whether we are going to mount / rw
    exec 9>&0 </etc/fstab
    rootmode=rw
    while read dev mnt type opts dump pass junk; do
        [ "$mnt" != / ] && continue
        case "$opts" in
            ro|ro,*|*,ro|*,ro,*)
               rootmode=ro
               ;;
             esac
     done
     exec 0>&9 9>&-

# Wait for $file to become writable
    if [ "$rootmode" = "rw" ]; then
        while ! { : >> "$file"; } 2>/dev/null; do
            sleep 0.1
        done
    fi
}

# update /etc/resolv.conf based on received values
make_resolv_conf() {
    local new_resolv_conf

# DHCPv4
    if [ -n "$new_domain_search" ] || [ -n "$new_domain_name" ] ||
       [ -n "$new_domain_name_servers" ]; then
        resolv_conf=$(readlink -f "/etc/resolv.conf" 2>/dev/null) ||
            resolv_conf="/etc/resolv.conf"

new_resolv_conf="${resolv_conf}.dhclient-new.$$"
        wait_for_rw "$new_resolv_conf"
        rm -f $new_resolv_conf

if [ -n "$new_domain_name" ]; then
            echo domain ${new_domain_name%% *} >>$new_resolv_conf
        fi

if [ -n "$new_domain_search" ]; then
            if [ -n "$new_domain_name" ]; then
                domain_in_search_list=""
                for domain in $new_domain_search; do
                    if [ "$domain" = "${new_domain_name}" ] ||
                       [ "$domain" = "${new_domain_name}." ]; then
                        domain_in_search_list="Yes"
                    fi
                done
                if [ -z "$domain_in_search_list" ]; then
                    new_domain_search="$new_domain_name $new_domain_search"
                fi
            fi
            echo "search ${new_domain_search}" >> $new_resolv_conf
        elif [ -n "$new_domain_name" ]; then
            echo "search ${new_domain_name}" >> $new_resolv_conf
        fi

if [ -n "$new_domain_name_servers" ]; then
            for nameserver in $new_domain_name_servers; do
                echo nameserver $nameserver >>$new_resolv_conf
            done
        else # keep 'old' nameservers
            sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p $resolv_conf >>$new_resolv_conf
        fi

if [ -f $resolv_conf ]; then
	    chown --reference=$resolv_conf $new_resolv_conf
	    chmod --reference=$resolv_conf $new_resolv_conf
	fi
        mv -f $new_resolv_conf $resolv_conf
    # DHCPv6
    elif [ -n "$new_dhcp6_domain_search" ] || [ -n "$new_dhcp6_name_servers" ]; then
        resolv_conf=$(readlink -f "/etc/resolv.conf" 2>/dev/null) ||
            resolv_conf="/etc/resolv.conf"

new_resolv_conf="${resolv_conf}.dhclient-new.$$"
        wait_for_rw "$new_resolv_conf"
        rm -f $new_resolv_conf

if [ -n "$new_dhcp6_domain_search" ]; then
            echo "search ${new_dhcp6_domain_search}" >> $new_resolv_conf
        fi

if [ -n "$new_dhcp6_name_servers" ]; then
            for nameserver in $new_dhcp6_name_servers; do
                # append %interface to link-local-address nameservers
                if [ "${nameserver##fe80::}" != "$nameserver" ] ||
                   [ "${nameserver##FE80::}" != "$nameserver" ]; then
                    nameserver="${nameserver}%${interface}"
                fi
                echo nameserver $nameserver >>$new_resolv_conf
            done
        else # keep 'old' nameservers
            sed -n /^\w*[Nn][Aa][Mm][Ee][Ss][Ee][Rr][Vv][Ee][Rr]/p $resolv_conf >>$new_resolv_conf
        fi

if [ -f $resolv_conf ]; then
            chown --reference=$resolv_conf $new_resolv_conf
            chmod --reference=$resolv_conf $new_resolv_conf
	fi
        mv -f $new_resolv_conf $resolv_conf
    fi
}

# set host name
set_hostname() {
    if [ -n "$new_host_name" ]; then
        local current_hostname=$(hostname)

# current host name is empty, '(none)' or 'localhost' or differs from new one from DHCP
        if [ -z "$current_hostname" ] ||
           [ "$current_hostname" = '(none)' ] ||
           [ "$current_hostname" = 'localhost' ] ||
           [ "$current_hostname" = "$old_host_name" ]; then
           if [ "$new_host_name" != "$current_host_name" ]; then
               hostname "$new_host_name"
           fi
        fi
    fi
}

# set the link up and wait for ipv6 link local dad to finish
ipv6_link_up_and_dad() {
    local dev=$1 delay=${2:-0.1} attempts=${3:-60}
    ip link set up dev "$dev" ||
        { error "$dev: failed to set link up"; return 1; }
    local n=0
    while :; do
        n=$((n+1))
        # note: busybox ip does not understand 'tentative' as input
        # so we cannot just use the tentative flag and check for empty
        out=$(ip -6 -o address show dev "$dev" scope link) || {
            error "$dev: checking for link-local addresses failed";
            return 1
        }
        # another note: the output may be empty if the link local tentative addr
        # isn't up just yet, so we need to make sure there is at least one 'inet6'
        # match before returning success.  We need to keep checking for both
        # 'tentative' case and default (no inet6 address) case. (LP: #1718568)
        # Don't reorder tentative/inet6 - we need to check for tentative first.
        case " $out " in
            *\ dadfailed\ *)
                error "$dev: ipv6 dad failed."
                return 1;;
            *\ tentative\ *) :;;
            *\ inet6\ *) return 0;;
            *) :;;
        esac
        [ $n -lt $attempts ] || {
            error "$dev: time out waiting for permanent link-local address"
            return 1;
        }
        sleep $delay
    done
}

# run given script
run_hook() {
    local script="$1"
    local exit_status=0

if [ -f $script ]; then
        . $script
        exit_status=$?
    fi

if [ -n "$exit_status" ] && [ "$exit_status" -ne 0 ]; then
        logger -p daemon.err "$script returned non-zero exit status $exit_status"
    fi

return $exit_status
}

# run scripts in given directory
run_hookdir() {
    local dir="$1"
    local exit_status=0

if [ -d "$dir" ]; then
        for script in $(run-parts --list $dir); do
            run_hook $script
            exit_status=$((exit_status|$?))
        done
    fi

return $exit_status
}

# Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
exit_with_hooks() {
    local exit_status=$1

# Source the documented exit-hook script, if it exists
    if ! run_hook /etc/dhcp/dhclient-exit-hooks; then
        exit_status=$?
    fi

# Now run scripts in the Debian-specific directory.
    if ! run_hookdir /etc/dhcp/dhclient-exit-hooks.d; then
        exit_status=$?
    fi

exit $exit_status
}

# The 576 MTU is only used for X.25 and dialup connections
# where the admin wants low latency.  Such a low MTU can cause
# problems with UDP traffic, among other things.  As such,
# disallow MTUs from 576 and below by default, so that broken
# MTUs are ignored, but higher stuff is allowed (1492, 1500, etc).
if [ -z "$new_interface_mtu" ] || [ "$new_interface_mtu" -le 576 ]; then
    new_interface_mtu=''
fi

# The action starts here

# Invoke the local dhcp client enter hooks, if they exist.
run_hook /etc/dhcp/dhclient-enter-hooks
run_hookdir /etc/dhcp/dhclient-enter-hooks.d

# Execute the operation
case "$reason" in

### DHCPv4 Handlers

MEDIUM|ARPCHECK|ARPSEND)
        # Do nothing
        ;;
    PREINIT)
        # The DHCP client is requesting that an interface be
        # configured as required in order to send packets prior to
        # receiving an actual address. - dhclient-script(8)

# ensure interface is up
        ip link set dev ${interface} up

if [ -n "$alias_ip_address" ]; then
            # flush alias IP from interface
            ip -4 addr flush dev ${interface} label ${interface}:0
        fi

;;

BOUND|RENEW|REBIND|REBOOT)
        set_hostname

if [ -n "$old_ip_address" ] && [ -n "$alias_ip_address" ] &&
           [ "$alias_ip_address" != "$old_ip_address" ]; then
            # alias IP may have changed => flush it
            ip -4 addr flush dev ${interface} label ${interface}:0
        fi

if [ -n "$old_ip_address" ] &&
           [ "$old_ip_address" != "$new_ip_address" ]; then
            # leased IP has changed => flush it
            ip -4 addr flush dev ${interface} label ${interface}
        fi

if [ -z "$old_ip_address" ] ||
           [ "$old_ip_address" != "$new_ip_address" ] ||
           [ "$reason" = "BOUND" ] || [ "$reason" = "REBOOT" ]; then
            # new IP has been leased or leased IP changed => set it
            ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \
                ${new_broadcast_address:+broadcast $new_broadcast_address} \
                ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \
                ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \
                dev ${interface} label ${interface}

if [ -n "$new_interface_mtu" ]; then
                # set MTU
                ip link set dev ${interface} mtu ${new_interface_mtu}
            fi

# if we have $new_rfc3442_classless_static_routes then we have to
	    # ignore $new_routers entirely
	    if [ ! "$new_rfc3442_classless_static_routes" ]; then
		    # set if_metric if IF_METRIC is set or there's more than one router
		    if_metric="$IF_METRIC"
		    if [ "${new_routers%% *}" != "${new_routers}" ]; then
			if_metric=${if_metric:-1}
		    fi

for router in $new_routers; do
			if [ "$new_subnet_mask" = "255.255.255.255" ]; then
			    # point-to-point connection => set explicit route
			    ip -4 route add ${router} dev $interface >/dev/null 2>&1
			fi

# set default route
			ip -4 route add default via ${router} dev ${interface} \
			    ${if_metric:+metric $if_metric} >/dev/null 2>&1

if [ -n "$if_metric" ]; then
			    if_metric=$((if_metric+1))
			fi
		    done
	    fi
        else # RENEW||REBIND
            ip -4 addr change ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \
                ${new_broadcast_address:+broadcast $new_broadcast_address} \
                ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \
                ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \
                dev ${interface} label ${interface}
        fi

if [ -n "$alias_ip_address" ] &&
           [ "$new_ip_address" != "$alias_ip_address" ]; then
            # separate alias IP given, which may have changed
            # => flush it, set it & add host route to it
            ip -4 addr flush dev ${interface} label ${interface}:0
            ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \
                dev ${interface} label ${interface}:0
            ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
        fi

# update /etc/resolv.conf
        make_resolv_conf

;;

EXPIRE|FAIL|RELEASE|STOP)
        if [ -n "$alias_ip_address" ]; then
            # flush alias IP
            ip -4 addr flush dev ${interface} label ${interface}:0
        fi

if [ -n "$old_ip_address" ]; then
            # flush leased IP
            ip -4 addr flush dev ${interface} label ${interface}
        fi

if [ -n "$alias_ip_address" ]; then
            # alias IP given => set it & add host route to it
            ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \
                dev ${interface} label ${interface}:0
            ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
        fi

;;

TIMEOUT)
        if [ -n "$alias_ip_address" ]; then
            # flush alias IP
            ip -4 addr flush dev ${interface} label ${interface}:0
        fi

# set IP from recorded lease
        ip -4 addr add ${new_ip_address}${new_subnet_mask:+/$new_subnet_mask} \
            ${new_broadcast_address:+broadcast $new_broadcast_address} \
            ${new_dhcp_lease_time:+valid_lft $new_dhcp_lease_time} \
            ${new_dhcp_lease_time:+preferred_lft $new_dhcp_lease_time} \
            dev ${interface} label ${interface}

if [ -n "$new_interface_mtu" ]; then
            # set MTU
            ip link set dev ${interface} mtu ${new_interface_mtu}
        fi

# if there is no router recorded in the lease or the 1st router answers pings
        if [ -z "$new_routers" ] || ping -q -c 1 "${new_routers%% *}"; then
	    # if we have $new_rfc3442_classless_static_routes then we have to
	    # ignore $new_routers entirely
	    if [ ! "$new_rfc3442_classless_static_routes" ]; then
		    if [ -n "$alias_ip_address" ] &&
		       [ "$new_ip_address" != "$alias_ip_address" ]; then
			# separate alias IP given => set up the alias IP & add host route to it
			ip -4 addr add ${alias_ip_address}${alias_subnet_mask:+/$alias_subnet_mask} \
			    dev ${interface} label ${interface}:0
			ip -4 route add ${alias_ip_address} dev ${interface} >/dev/null 2>&1
		    fi

# set if_metric if IF_METRIC is set or there's more than one router
		    if_metric="$IF_METRIC"
		    if [ "${new_routers%% *}" != "${new_routers}" ]; then
			if_metric=${if_metric:-1}
		    fi

# set default route
		    for router in $new_routers; do
			ip -4 route add default via ${router} dev ${interface} \
			    ${if_metric:+metric $if_metric} >/dev/null 2>&1

if [ -n "$if_metric" ]; then
			    if_metric=$((if_metric+1))
			fi
		    done
	    fi

# update /etc/resolv.conf
            make_resolv_conf
        else
            # flush all IPs from interface
            ip -4 addr flush dev ${interface}
            exit_with_hooks 2
        fi

;;

### DHCPv6 Handlers
    # TODO handle prefix change: ?based on ${old_ip6_prefix} and ${new_ip6_prefix}?

PREINIT6)
        # ensure interface is up
        ipv6_link_up_and_dad "$interface"

# flush any stale global permanent IPs from interface
        ip -6 addr flush dev ${interface} scope global permanent

;;

BOUND6|RENEW6|REBIND6)
        if [ "${new_ip6_address}" ]; then
            # set leased IP
            ip -6 addr add ${new_ip6_address} \
                dev ${interface} scope global
        fi

# update /etc/resolv.conf
        if [ "${reason}" = BOUND6 ] ||
           [ "${new_dhcp6_name_servers}" != "${old_dhcp6_name_servers}" ] ||
           [ "${new_dhcp6_domain_search}" != "${old_dhcp6_domain_search}" ]; then
            make_resolv_conf
        fi

;;

DEPREF6)
        # set preferred lifetime of leased IP to 0
        ip -6 addr change ${cur_ip6_address} \
            dev ${interface} scope global preferred_lft 0

;;

EXPIRE6|RELEASE6|STOP6)
        if [ -z "${old_ip6_address}" ]; then
            exit_with_hooks 2
        fi

# delete leased IP
        ip -6 addr del ${old_ip6_address} \
            dev ${interface}

;;
esac

exit_with_hooks 0