File Manager

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Current Path: /usr/bin

📁 ..
📁 X11
📄 [(66.89 KB)
📄 ab(58.42 KB)
📄 addpart(30.31 KB)
📄 apt(18.31 KB)
📄 apt-cache(86.38 KB)
📄 apt-cdrom(22.38 KB)
📄 apt-config(26.31 KB)
📄 apt-get(50.38 KB)
📄 apt-key(27.32 KB)
📄 apt-mark(58.38 KB)
📄 arch(42.86 KB)
📄 awk(154.66 KB)
📄 b2sum(58.98 KB)
📄 base32(46.89 KB)
📄 base64(46.89 KB)
📄 basename(42.83 KB)
📄 basenc(54.89 KB)
📄 bash(1.21 MB)
📄 bashbug(6.7 KB)
📄 bdftopcf(42.45 KB)
📄 bdftruncate(10.22 KB)
📄 busctl(90.5 KB)
📄 c_rehash(6.68 KB)
📄 captoinfo(90.34 KB)
📄 cat(42.98 KB)
📄 certbot(958 B)
📄 chage(78.49 KB)
📄 chardet(221 B)
📄 chardetect(221 B)
📄 chattr(14.24 KB)
📄 chcon(67.11 KB)
📄 checkgid(14.23 KB)
📄 chfn(61.2 KB)
📄 chgrp(67.05 KB)
📄 chmod(62.98 KB)
📄 choom(54.31 KB)
📄 chown(71.05 KB)
📄 chrt(66.31 KB)
📄 chsh(51.64 KB)
📄 cksum(139.05 KB)
📄 clear(14.24 KB)
📄 clear_console(14.15 KB)
📄 cmp(50.95 KB)
📄 comm(46.92 KB)
📄 corelist(15.01 KB)
📄 cp(147.61 KB)
📄 cpan(8.16 KB)
📄 cpan5.36-x86_64-linux-gnu(8.18 KB)
📄 csplit(119.17 KB)
📄 ctstat(26.59 KB)
📄 cut(46.98 KB)
📄 dash(122.7 KB)
📄 date(119.05 KB)
📄 dbus-cleanup-sockets(14.22 KB)
📄 dbus-daemon(238.56 KB)
📄 dbus-monitor(26.23 KB)
📄 dbus-run-session(14.23 KB)
📄 dbus-send(30.22 KB)
📄 dbus-update-activation-environment(14.22 KB)
📄 dbus-uuidgen(14.22 KB)
📄 dd(87.15 KB)
📄 deb-systemd-helper(23.79 KB)
📄 deb-systemd-invoke(6.09 KB)
📄 debconf(2.79 KB)
📄 debconf-apt-progress(11.27 KB)
📄 debconf-communicate(608 B)
📄 debconf-copydb(1.68 KB)
📄 debconf-escape(647 B)
📄 debconf-set-selections(2.92 KB)
📄 debconf-show(1.78 KB)
📄 delpart(30.31 KB)
📄 df(99.8 KB)
📄 dialog(247.85 KB)
📄 diff(151.58 KB)
📄 diff3(67.14 KB)
📄 dir(147.8 KB)
📄 dircolors(50.92 KB)
📄 dirname(38.83 KB)
📄 dmesg(86.58 KB)
📄 dnsdomainname(22.15 KB)
📄 domainname(22.15 KB)
📄 dpkg(310.64 KB)
📄 dpkg-deb(166.52 KB)
📄 dpkg-divert(154.55 KB)
📄 dpkg-maintscript-helper(20.71 KB)
📄 dpkg-query(158.58 KB)
📄 dpkg-realpath(4.09 KB)
📄 dpkg-split(126.48 KB)
📄 dpkg-statoverride(62.33 KB)
📄 dpkg-trigger(86.48 KB)
📄 du(171.33 KB)
📄 dvipdf(1007 B)
📄 echo(42.83 KB)
📄 editor(3.48 MB)
📄 egrep(41 B)
📄 enc2xs(40.96 KB)
📄 encguess(3 KB)
📄 env(47.4 KB)
📄 eps2eps(639 B)
📄 ex(3.48 MB)
📄 expand(42.92 KB)
📄 expiry(30.45 KB)
📄 expr(115.05 KB)
📄 factor(83.2 KB)
📄 faillog(22.53 KB)
📄 fallocate(34.31 KB)
📄 false(34.83 KB)
📄 fcgistarter(14.23 KB)
📄 fgrep(41 B)
📄 fincore(34.36 KB)
📄 find(219.58 KB)
📄 findmnt(83.59 KB)
📄 flock(34.39 KB)
📄 fmt(46.89 KB)
📄 fold(42.89 KB)
📄 fonttosfnt(34.41 KB)
📄 free(26.3 KB)
📄 fuser(39.83 KB)
📄 getconf(26.5 KB)
📄 getent(35.47 KB)
📄 getopt(34.31 KB)
📄 ghostscript(14.23 KB)
📄 gpasswd(86.42 KB)
📄 gpgv(463 KB)
📄 grep(198.39 KB)
📄 groups(42.89 KB)
📄 gs(14.23 KB)
📄 gsbj(350 B)
📄 gsdj(352 B)
📄 gsdj500(352 B)
📄 gslj(353 B)
📄 gslp(350 B)
📄 gsnd(277 B)
📄 gunzip(2.29 KB)
📄 gzexe(6.3 KB)
📄 gzip(95.84 KB)
📄 h2ph(28.54 KB)
📄 h2xs(59.51 KB)
📄 hardlink(50.39 KB)
📄 head(46.95 KB)
📄 helpztags(2.46 KB)
📄 hostid(38.83 KB)
📄 hostname(22.15 KB)
📄 hostnamectl(30.38 KB)
📄 htcacheclean(34.24 KB)
📄 htdbm(26.23 KB)
📄 htdigest(14.23 KB)
📄 htpasswd(26.23 KB)
📄 i386(26.58 KB)
📄 iconv(63.13 KB)
📄 id(47.02 KB)
📄 infocmp(62.31 KB)
📄 infotocap(90.34 KB)
📄 install(155.8 KB)
📄 instmodsh(4.27 KB)
📄 ionice(34.31 KB)
📄 ip(674.82 KB)
📄 ipcmk(34.38 KB)
📄 ipcrm(34.31 KB)
📄 ipcs(74.31 KB)
📄 ischroot(14.32 KB)
📄 join(54.98 KB)
📄 journalctl(74.64 KB)
📄 json_pp(4.88 KB)
📄 kernel-install(12.75 KB)
📄 kill(22.3 KB)
📄 killall(31.95 KB)
📄 last(50.31 KB)
📄 lastb(50.31 KB)
📄 lastlog(31.75 KB)
📄 lcf(7.6 KB)
📄 ld.so(205.96 KB)
📄 ldd(5.28 KB)
📄 letsencrypt(958 B)
📄 libnetcfg(15.41 KB)
📄 link(38.83 KB)
📄 linux32(26.58 KB)
📄 linux64(26.58 KB)
📄 ln(71.12 KB)
📄 lnstat(26.59 KB)
📄 locale(46.16 KB)
📄 localectl(26.38 KB)
📄 localedef(291.91 KB)
📄 logger(54.9 KB)
📄 login(51.78 KB)
📄 loginctl(58.48 KB)
📄 logname(38.83 KB)
📄 logresolve(14.24 KB)
📄 ls(147.8 KB)
📄 lsattr(14.24 KB)
📄 lsb_release(2.59 KB)
📄 lsblk(202.31 KB)
📄 lscpu(126.31 KB)
📄 lsfd(120.3 KB)
📄 lsipc(98.31 KB)
📄 lsirq(34.48 KB)
📄 lslocks(70.7 KB)
📄 lslogins(94.31 KB)
📄 lsmem(66.31 KB)
📄 lsns(82.31 KB)
📄 mawk(154.66 KB)
📄 mcookie(34.38 KB)
📄 md5sum(50.95 KB)
📄 md5sum.textutils(50.95 KB)
📄 mesg(18.3 KB)
📄 mkdir(95.27 KB)
📄 mkfifo(67.17 KB)
📄 mkfontdir(65 B)
📄 mkfontscale(39.05 KB)
📄 mknod(71.2 KB)
📄 mktemp(42.92 KB)
📄 more(58.31 KB)
📄 mount(58.3 KB)
📄 mountpoint(18.3 KB)
📄 mv(139.62 KB)
📄 namei(34.31 KB)
📄 nawk(154.66 KB)
📄 netstat(151.66 KB)
📄 networkctl(106.38 KB)
📄 newgrp(47.75 KB)
📄 nice(42.86 KB)
📄 nisdomainname(22.15 KB)
📄 nl(111.11 KB)
📄 nohup(42.89 KB)
📄 normalizer(244 B)
📄 nproc(42.89 KB)
📄 nsenter(34.54 KB)
📄 nstat(104.45 KB)
📄 numfmt(67.02 KB)
📄 od(79.02 KB)
📄 openssl(953.26 KB)
📄 pager(58.31 KB)
📄 paperconf(14.34 KB)
📄 partx(118.31 KB)
📄 passwd(66.65 KB)
📄 paste(42.89 KB)
📄 pathchk(42.86 KB)
📄 pdb3(62.4 KB)
📄 pdb3.11(62.4 KB)
📄 pdf2dsc(698 B)
📄 pdf2ps(909 B)
📄 peekfd(14.5 KB)
📄 perl(3.63 MB)
📄 perl5.36-x86_64-linux-gnu(14.41 KB)
📄 perl5.36.0(3.63 MB)
📄 perlbug(44.12 KB)
📄 perldoc(125 B)
📄 perlivp(10.61 KB)
📄 perlthanks(44.12 KB)
📄 pf2afm(498 B)
📄 pfbtopfa(516 B)
📄 pgrep(34.42 KB)
📄 phar(14.88 KB)
📄 phar.phar(14.88 KB)
📄 phar.phar8.2(14.88 KB)
📄 phar8.2(14.88 KB)
📄 phar8.2.phar(14.88 KB)
📄 php(5.4 MB)
📄 php8.2(5.4 MB)
📄 piconv(8.16 KB)
📄 pidof(26.31 KB)
📄 pidwait(34.42 KB)
📄 pinky(47.05 KB)
📄 pkill(34.42 KB)
📄 pl2pm(4.43 KB)
📄 pldd(22.69 KB)
📄 pmap(34.34 KB)
📄 pod2html(4.04 KB)
📄 pod2man(14.68 KB)
📄 pod2text(10.55 KB)
📄 pod2usage(4.01 KB)
📄 podchecker(3.57 KB)
📄 pphs(404 B)
📄 pr(79.11 KB)
📄 printafm(395 B)
📄 printenv(34.83 KB)
📄 printf(62.92 KB)
📄 prlimit(38.83 KB)
📄 prove(13.34 KB)
📄 prtstat(18.57 KB)
📄 ps(142.93 KB)
📄 ps2ascii(631 B)
📄 ps2epsi(1.23 KB)
📄 ps2pdf(272 B)
📄 ps2pdf12(215 B)
📄 ps2pdf13(215 B)
📄 ps2pdf14(215 B)
📄 ps2pdfwr(1.05 KB)
📄 ps2ps(647 B)
📄 ps2ps2(669 B)
📄 ps2txt(631 B)
📄 pslog(14.45 KB)
📄 pstree(35.78 KB)
📄 pstree.x11(35.78 KB)
📄 ptar(3.48 KB)
📄 ptardiff(2.58 KB)
📄 ptargrep(4.29 KB)
📄 ptx(135.23 KB)
📄 pwd(42.92 KB)
📄 pwdx(14.3 KB)
📄 py3clean(7.63 KB)
📄 py3compile(13 KB)
📄 py3versions(12.52 KB)
📄 pydoc3(79 B)
📄 pydoc3.11(79 B)
📄 pygettext3(23.67 KB)
📄 pygettext3.11(23.67 KB)
📄 python3(6.52 MB)
📄 python3.11(6.52 MB)
📄 rbash(1.21 MB)
📄 rdma(180.6 KB)
📄 readlink(50.89 KB)
📄 realpath(50.92 KB)
📄 rename.ul(22.3 KB)
📄 renice(14.3 KB)
📄 reset(30.24 KB)
📄 resizepart(70.31 KB)
📄 rev(14.3 KB)
📄 rgrep(30 B)
📄 rm(71.05 KB)
📄 rmdir(54.92 KB)
📄 rotatelogs(26.31 KB)
📄 routel(1.62 KB)
📄 rtstat(26.59 KB)
📄 run-parts(26.91 KB)
📄 runcon(42.95 KB)
📄 rview(3.48 MB)
📄 rvim(3.48 MB)
📄 savelog(10.24 KB)
📄 scp(266.63 KB)
📄 script(70.3 KB)
📄 scriptlive(54.3 KB)
📄 scriptreplay(46.3 KB)
📄 sdiff(55.08 KB)
📄 sed(123.46 KB)
📄 select-editor(2.39 KB)
📄 sensible-browser(1.26 KB)
📄 sensible-editor(1.24 KB)
📄 sensible-pager(565 B)
📄 seq(58.92 KB)
📄 setarch(26.58 KB)
📄 setpriv(78.31 KB)
📄 setsid(14.3 KB)
📄 setterm(46.31 KB)
📄 sftp(282.59 KB)
📄 sg(47.75 KB)
📄 sh(122.7 KB)
📄 sha1sum(54.95 KB)
📄 sha224sum(58.95 KB)
📄 sha256sum(58.95 KB)
📄 sha384sum(62.95 KB)
📄 sha512sum(62.95 KB)
📄 shasum(9.75 KB)
📄 shred(63.14 KB)
📄 shuf(58.98 KB)
📄 skill(30.33 KB)
📄 slabtop(22.37 KB)
📄 sleep(42.86 KB)
📄 slogin(1.07 MB)
📄 snice(30.33 KB)
📄 sort(115.68 KB)
📄 splain(18.99 KB)
📄 split(59.55 KB)
📄 ss(189.14 KB)
📄 ssh(1.07 MB)
📄 ssh-add(518.44 KB)
📄 ssh-agent(474.38 KB)
📄 ssh-argv0(1.42 KB)
📄 ssh-copy-id(12.38 KB)
📄 ssh-keygen(646.44 KB)
📄 ssh-keyscan(622.47 KB)
📄 stat(95.2 KB)
📄 stdbuf(58.92 KB)
📄 streamzip(7.75 KB)
📄 stty(83.02 KB)
📄 su(70.31 KB)
📄 sum(50.96 KB)
📄 sync(38.89 KB)
📄 systemctl(1.29 MB)
📄 systemd(90.38 KB)
📄 systemd-analyze(182.61 KB)
📄 systemd-ask-password(18.48 KB)
📄 systemd-cat(18.38 KB)
📄 systemd-cgls(22.48 KB)
📄 systemd-cgtop(38.4 KB)
📄 systemd-creds(42.61 KB)
📄 systemd-cryptenroll(58.6 KB)
📄 systemd-delta(26.38 KB)
📄 systemd-detect-virt(18.37 KB)
📄 systemd-escape(18.37 KB)
📄 systemd-firstboot(50.59 KB)
📄 systemd-id128(22.37 KB)
📄 systemd-inhibit(22.39 KB)
📄 systemd-machine-id-setup(18.48 KB)
📄 systemd-mount(50.59 KB)
📄 systemd-notify(18.38 KB)
📄 systemd-path(18.37 KB)
📄 systemd-repart(150.69 KB)
📄 systemd-run(58.57 KB)
📄 systemd-socket-activate(26.38 KB)
📄 systemd-stdio-bridge(18.38 KB)
📄 systemd-sysext(42.49 KB)
📄 systemd-sysusers(62.68 KB)
📄 systemd-tmpfiles(110.57 KB)
📄 systemd-tty-ask-password-agent(34.38 KB)
📄 systemd-umount(50.59 KB)
📄 tabs(18.23 KB)
📄 tac(111.05 KB)
📄 tail(75.14 KB)
📄 tar(519.52 KB)
📄 taskset(62.31 KB)
📄 tee(42.95 KB)
📄 tempfile(14.18 KB)
📄 test(58.89 KB)
📄 tic(90.34 KB)
📄 timedatectl(42.37 KB)
📄 timeout(47.49 KB)
📄 tload(18.32 KB)
📄 toe(22.23 KB)
📄 top(131.58 KB)
📄 touch(107.05 KB)
📄 tput(26.27 KB)
📄 tr(54.89 KB)
📄 true(34.83 KB)
📄 truncate(42.89 KB)
📄 tset(30.24 KB)
📄 tsort(54.89 KB)
📄 tty(34.86 KB)
📄 tzselect(14.99 KB)
📄 ucf(40.69 KB)
📄 ucfq(18.91 KB)
📄 ucfr(10.85 KB)
📄 uclampset(62.31 KB)
📄 ucs2any(18.32 KB)
📄 umount(34.3 KB)
📄 uname(42.86 KB)
📄 uncompress(2.29 KB)
📄 unexpand(42.92 KB)
📄 uniq(46.95 KB)
📄 unlink(38.83 KB)
📄 unshare(82.54 KB)
📄 update-alternatives(58.31 KB)
📄 update-mime-database(59.27 KB)
📄 uptime(14.3 KB)
📄 users(38.89 KB)
📄 utmpdump(30.3 KB)
📄 vdir(147.8 KB)
📄 vi(3.48 MB)
📄 view(3.48 MB)
📄 vim(3.48 MB)
📄 vim.basic(3.48 MB)
📄 vimdiff(3.48 MB)
📄 vimtutor(2.1 KB)
📄 vmstat(34.72 KB)
📄 w(22.3 KB)
📄 wall(38.3 KB)
📄 watch(26.71 KB)
📄 wc(51.05 KB)
📄 wdctl(70.34 KB)
📄 wget(527.36 KB)
📄 whereis(30.77 KB)
📄 which(946 B)
📄 which.debianutils(946 B)
📄 who(59.02 KB)
📄 whoami(38.86 KB)
📄 x86_64(26.58 KB)
📄 xargs(70.45 KB)
📄 xdg-user-dir(234 B)
📄 xdg-user-dirs-update(26.16 KB)
📄 xsubpp(5.05 KB)
📄 xxd(18.21 KB)
📄 yes(38.83 KB)
📄 ypdomainname(22.15 KB)
📄 zcat(1.94 KB)
📄 zcmp(1.64 KB)
📄 zdiff(6.31 KB)
📄 zdump(22.52 KB)
📄 zegrep(29 B)
📄 zfgrep(29 B)
📄 zforce(2.03 KB)
📄 zgrep(7.91 KB)
📄 zipdetails(68.55 KB)
📄 zless(2.15 KB)
📄 zmore(1.8 KB)
📄 znew(4.47 KB)

Editing: apt-key

#!/bin/sh

set -e
unset GREP_OPTIONS GPGHOMEDIR CURRENTTRAP
export IFS="$(printf "\n\b")"

MASTER_KEYRING=''
eval "$(apt-config shell MASTER_KEYRING APT::Key::MasterKeyring)"
ARCHIVE_KEYRING=''
eval "$(apt-config shell ARCHIVE_KEYRING APT::Key::ArchiveKeyring)"
REMOVED_KEYS=''
eval "$(apt-config shell REMOVED_KEYS APT::Key::RemovedKeys)"
ARCHIVE_KEYRING_URI=''
eval "$(apt-config shell ARCHIVE_KEYRING_URI APT::Key::ArchiveKeyringURI)"

aptkey_echo() { echo "$@"; }

find_gpgv_status_fd() {
   while [ -n "$1" ]; do
	if [ "$1" = '--status-fd' ]; then
		shift
		echo "$1"
		break
	fi
	shift
   done
}
GPGSTATUSFD="$(find_gpgv_status_fd "$@")"

apt_warn() {
    if [ -z "$GPGHOMEDIR" ]; then
	echo >&2 'W:' "$@"
    else
	echo 'W:' "$@" > "${GPGHOMEDIR}/aptwarnings.log"
    fi
    if [ -n "$GPGSTATUSFD" ]; then
	echo >&${GPGSTATUSFD} '[APTKEY:] WARNING' "$@"
    fi
}
apt_error() {
    if [ -z "$GPGHOMEDIR" ]; then
	echo >&2 'E:' "$@"
    else
	echo 'E:' "$@" > "${GPGHOMEDIR}/aptwarnings.log"
    fi
    if [ -n "$GPGSTATUSFD" ]; then
	echo >&${GPGSTATUSFD} '[APTKEY:] ERROR' "$@"
    fi
}

cleanup_gpg_home() {
    if [ -z "$GPGHOMEDIR" ]; then return; fi
    if [ -s "$GPGHOMEDIR/aptwarnings.log" ]; then
	cat >&2 "$GPGHOMEDIR/aptwarnings.log"
    fi
    if command_available 'gpgconf'; then
	GNUPGHOME="${GPGHOMEDIR}" gpgconf --kill all >/dev/null 2>&1 || true
    fi
    rm -rf "$GPGHOMEDIR"
}

# gpg needs (in different versions more or less) files to function correctly,
# so we give it its own homedir and generate some valid content for it later on
create_gpg_home() {
    # for cases in which we want to cache a homedir due to expensive setup
    if [ -n "$GPGHOMEDIR" ]; then
	return
    fi
    if [ -n "$TMPDIR" ]; then
	# tmpdir is a directory and current user has rwx access to it
	# same tests as in apt-pkg/contrib/fileutl.cc GetTempDir()
	if [ ! -d "$TMPDIR" ] || [ ! -r "$TMPDIR" ] || [ ! -w "$TMPDIR" ] || [ ! -x "$TMPDIR" ]; then
	    unset TMPDIR
	fi
    fi
    GPGHOMEDIR="$(mktemp --directory --tmpdir 'apt-key-gpghome.XXXXXXXXXX')"
    CURRENTTRAP="${CURRENTTRAP} cleanup_gpg_home;"
    trap "${CURRENTTRAP}" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
    if [ -z "$GPGHOMEDIR" ]; then
	apt_error "Could not create temporary gpg home directory in $TMPDIR (wrong permissions?)"
	exit 28
    fi
    chmod 700 "$GPGHOMEDIR"
}

requires_root() {
	if [ "$(id -u)" -ne 0 ]; then
		apt_error "This command can only be used by root."
		exit 1
	fi
}

command_available() {
    if [ -x "$1" ]; then return 0; fi
    command -v "$1" >/dev/null # required by policy, see #747320
}

escape_shell() {
    echo "$@" | sed -e "s#'#'\"'\"'#g"
}

get_fingerprints_of_keyring() {
    aptkey_execute "$GPG_SH" --keyring "$1" --with-colons --fingerprint | while read publine; do
	# search for a public key
	if [ "${publine%%:*}" != 'pub' ]; then continue; fi
	# search for the associated fingerprint (should be the very next line)
	while read fprline; do
	   if [ "${fprline%%:*}" = 'sub' ]; then break; # should never happen
	   elif [ "${fprline%%:*}" != 'fpr' ]; then continue; fi
	   echo "$fprline" | cut -d':' -f 10
	done
	# order in the keyring shouldn't be important
    done | sort
}

add_keys_with_verify_against_master_keyring() {
    ADD_KEYRING="$1"
    MASTER="$2"

if [ ! -f "$ADD_KEYRING" ]; then
	apt_error "Keyring '$ADD_KEYRING' to be added not found"
	return
    fi
    if [ ! -f "$MASTER" ]; then
	apt_error "Master-Keyring '$MASTER' not found"
	return
    fi

# when adding new keys, make sure that the archive-master-keyring
    # is honored. so:
    #   all keys that are exported must have a valid signature
    #   from a key in the $distro-master-keyring
    add_keys="$(get_fingerprints_of_keyring "$ADD_KEYRING")"
    all_add_keys="$(aptkey_execute "$GPG_SH" --keyring "$ADD_KEYRING" --with-colons --list-keys | grep ^[ps]ub | cut -d: -f5)"
    master_keys="$(aptkey_execute "$GPG_SH" --keyring "$MASTER" --with-colons --list-keys | grep ^pub | cut -d: -f5)"

# ensure there are no colisions LP: #857472
    for all_add_key in $all_add_keys; do
	for master_key in $master_keys; do
            if [ "$all_add_key" = "$master_key" ]; then
                echo >&2 "Keyid collision for '$all_add_key' detected, operation aborted"
                return 1
            fi
        done
    done

for add_key in $add_keys; do
        # export the add keyring one-by-one
	local TMP_KEYRING="${GPGHOMEDIR}/tmp-keyring.gpg"
	aptkey_execute "$GPG_SH" --batch --yes --keyring "$ADD_KEYRING" --output "$TMP_KEYRING" --export "$add_key"
	if ! aptkey_execute "$GPG_SH" --batch --yes --keyring "$TMP_KEYRING" --import "$MASTER" > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
	    cat >&2 "${GPGHOMEDIR}/gpgoutput.log"
	    false
	fi
	# check if signed with the master key and only add in this case
	ADDED=0
	for master_key in $master_keys; do
	    if aptkey_execute "$GPG_SH" --keyring "$TMP_KEYRING" --check-sigs --with-colons "$add_key" \
	       | grep '^sig:!:' | cut -d: -f5 | grep -q "$master_key"; then
		aptkey_execute "$GPG_SH" --batch --yes --keyring "$ADD_KEYRING" --export "$add_key" \
		   | aptkey_execute "$GPG" --batch --yes --import
		ADDED=1
	    fi
	done
	if [ $ADDED = 0 ]; then
	    echo >&2 "Key '$add_key' not added. It is not signed with a master key"
	fi
	rm -f "${TMP_KEYRING}"
    done
}

# update the current archive signing keyring from a network URI
# the archive-keyring keys needs to be signed with the master key
# (otherwise it does not make sense from a security POV)
net_update() {
    local APT_DIR='/'
    eval $(apt-config shell APT_DIR Dir)

# Disabled for now as code is insecure (LP: #1013639 (and 857472, 1013128))
    APT_KEY_NET_UPDATE_ENABLED=""
    eval $(apt-config shell APT_KEY_NET_UPDATE_ENABLED APT::Key::Net-Update-Enabled)
    if [ -z "$APT_KEY_NET_UPDATE_ENABLED" ]; then
        exit 1
    fi

if [ -z "$ARCHIVE_KEYRING_URI" ]; then
	apt_error 'Your distribution is not supported in net-update as no uri for the archive-keyring is set'
	exit 1
    fi
    # in theory we would need to depend on wget for this, but this feature
    # isn't usable in debian anyway as we have no keyring uri nor a master key
    if ! command_available 'wget'; then
	apt_error 'wget is required for a network-based update, but it is not installed'
	exit 1
    fi
    if [ ! -d "${APT_DIR}/var/lib/apt/keyrings" ]; then
	mkdir -p "${APT_DIR}/var/lib/apt/keyrings"
    fi
    keyring="${APT_DIR}/var/lib/apt/keyrings/$(basename "$ARCHIVE_KEYRING_URI")"
    old_mtime=0
    if [ -e $keyring ]; then
	old_mtime=$(stat -c %Y "$keyring")
    fi
    (cd  "${APT_DIR}/var/lib/apt/keyrings"; wget --timeout=90 -q -N "$ARCHIVE_KEYRING_URI")
    if [ ! -e "$keyring" ]; then
	return
    fi
    new_mtime=$(stat -c %Y "$keyring")
    if [ $new_mtime -ne $old_mtime ]; then
	aptkey_echo "Checking for new archive signing keys now"
	add_keys_with_verify_against_master_keyring "$keyring" "$MASTER_KEYRING"
    fi
}

update() {
    if [ -z "$APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE" ]; then
	echo >&2 "Warning: 'apt-key update' is deprecated and should not be used anymore!"
	if [ -z "$ARCHIVE_KEYRING" ]; then
	    echo >&2 "Note: In your distribution this command is a no-op and can therefore be removed safely."
	    exit 0
	fi
    fi
    if [ ! -f "$ARCHIVE_KEYRING" ]; then
	apt_error "Can't find the archive-keyring (Is the debian-archive-keyring package installed?)"
	exit 1
    fi

# add new keys from the package;

# we do not use add_keys_with_verify_against_master_keyring here,
    # because "update" is run on regular package updates.  A
    # attacker might as well replace the master-archive-keyring file
    # in the package and add his own keys. so this check wouldn't
    # add any security. we *need* this check on net-update though
    import_keyring_into_keyring "$ARCHIVE_KEYRING" '' && cat "${GPGHOMEDIR}/gpgoutput.log"

if [ -r "$REMOVED_KEYS" ]; then
	# remove no-longer supported/used keys
	get_fingerprints_of_keyring "$(dearmor_filename "$REMOVED_KEYS")" | while read key; do
	    foreach_keyring_do 'remove_key_from_keyring' "$key"
	done
    else
	apt_warn "Removed keys keyring '$REMOVED_KEYS' missing or not readable"
    fi
}

remove_key_from_keyring() {
    local KEYRINGFILE="$1"
    shift
    # non-existent keyrings have by definition no keys
    if [ ! -e "$KEYRINGFILE" ]; then
       return
    fi

local FINGERPRINTS="${GPGHOMEDIR}/keyringfile.keylst"
    local DEARMOR="$(dearmor_filename "$KEYRINGFILE")"
    get_fingerprints_of_keyring "$DEARMOR" > "$FINGERPRINTS"

for KEY in "$@"; do
	# strip leading 0x, if present:
	KEY="$(echo "${KEY#0x}" | tr -d ' ')"

# check if the key is in this keyring
	if ! grep -iq "^[0-9A-F]*${KEY}$" "$FINGERPRINTS"; then
	    continue
	fi
	if [ ! -w "$KEYRINGFILE" ]; then
	    apt_warn "Key ${KEY} is in keyring ${KEYRINGFILE}, but can't be removed as it is read only."
	    continue
	fi
	# check if it is the only key in the keyring and if so remove the keyring altogether
	if [ '1' = "$(uniq "$FINGERPRINTS" | wc -l)" ]; then
	    mv -f "$KEYRINGFILE" "${KEYRINGFILE}~" # behave like gpg
	    return
	fi
	# we can't just modify pointed to files as these might be in /usr or something
	local REALTARGET
	if [ -L "$DEARMOR" ]; then
	    REALTARGET="$(readlink -f "$DEARMOR")"
	    mv -f "$DEARMOR" "${DEARMOR}.dpkg-tmp"
	    cp -a "$REALTARGET" "$DEARMOR"
	fi
	# delete the key from the keyring
	aptkey_execute "$GPG_SH" --keyring "$DEARMOR" --batch --delete-keys --yes "$KEY"
	if [ -n "$REALTARGET" ]; then
	    # the real backup is the old link, not the copy we made
	    mv -f "${DEARMOR}.dpkg-tmp" "${DEARMOR}~"
	fi
	if [ "$DEARMOR" != "$KEYRINGFILE" ]; then
	    mv -f "$KEYRINGFILE" "${KEYRINGFILE}~"
	    create_new_keyring "$KEYRINGFILE"
	    aptkey_execute "$GPG_SH" --keyring "$DEARMOR" --armor --export > "$KEYRINGFILE"
	fi
	get_fingerprints_of_keyring "$DEARMOR" > "$FINGERPRINTS"
    done
}

accessible_file_exists() {
   if ! test -s "$1"; then
      return 1
   fi
   if test -r "$1"; then
      return 0
   fi
   apt_warn "The key(s) in the keyring $1 are ignored as the file is not readable by user '$USER' executing apt-key."
   return 1
}

is_supported_keyring() {
    # empty files are always supported
    if ! test -s "$1"; then
	return 0
    fi
    local FILEEXT="${1##*.}"
    if [ "$FILEEXT" = 'gpg' ]; then
	# 0x98, 0x99 and 0xC6 via octal as hex isn't supported by dashs printf
	if printf '\231' | cmp -s -n 1 - "$1"; then
	    true
	elif printf '\230' | cmp -s -n 1 - "$1"; then
	    true
	elif printf '\306' | cmp -s -n 1 - "$1"; then
	    true
	else
	    apt_warn "The key(s) in the keyring $1 are ignored as the file has an unsupported filetype."
	    return 1
	fi
    elif [ "$FILEEXT" = 'asc' ]; then
	true #dearmor_filename will deal with them
    else
	# most callers ignore unsupported extensions silently
	apt_warn "The key(s) in the keyring $1 are ignored as the file has an unsupported filename extension."
	return 1
    fi
    return 0
}

foreach_keyring_do() {
   local ACTION="$1"
   shift
   # if a --keyring was given, just work on this one
   if [ -n "$FORCED_KEYRING" ]; then
	$ACTION "$FORCED_KEYRING" "$@"
   else
	# otherwise all known keyrings are up for inspection
	if accessible_file_exists "$TRUSTEDFILE" && is_supported_keyring "$TRUSTEDFILE"; then
	    $ACTION "$TRUSTEDFILE" "$@"
	fi
	local TRUSTEDPARTS="/etc/apt/trusted.gpg.d"
	eval "$(apt-config shell TRUSTEDPARTS Dir::Etc::TrustedParts/d)"
	if [ -d "$TRUSTEDPARTS" ]; then
	    TRUSTEDPARTS="$(readlink -f "$TRUSTEDPARTS")"
	    local TRUSTEDPARTSLIST="$(cd /; find "$TRUSTEDPARTS" -mindepth 1 -maxdepth 1 $ -name '*.gpg' -o -name '*.asc' $)"
	    for trusted in $(echo "$TRUSTEDPARTSLIST" | sort); do
		if accessible_file_exists "$trusted" && is_supported_keyring "$trusted"; then
		    $ACTION "$trusted" "$@"
		fi
	    done
	fi
   fi
}

list_keys_in_keyring() {
    local KEYRINGFILE="$1"
    shift
    # fingerprint and co will fail if key isn't in this keyring
    aptkey_execute "$GPG_SH" --keyring "$(dearmor_filename "$KEYRINGFILE")" "$@" > "${GPGHOMEDIR}/gpgoutput.log" 2> "${GPGHOMEDIR}/gpgoutput.err" || true
    if [ ! -s "${GPGHOMEDIR}/gpgoutput.log" ]; then
	return
    fi
    # we fake gpg header here to refer to the real asc file rather than a temp file
    if [ "${KEYRINGFILE##*.}" = 'asc' ]; then
	if expr match "$(sed -n '2p' "${GPGHOMEDIR}/gpgoutput.log")" '^-\+$' >/dev/null 2>&1; then
	    echo "$KEYRINGFILE"
	    echo "$KEYRINGFILE" | sed 's#[^-]#-#g'
	    sed '1,2d' "${GPGHOMEDIR}/gpgoutput.log" || true
	else
	    cat "${GPGHOMEDIR}/gpgoutput.log"
	fi
    else
	cat "${GPGHOMEDIR}/gpgoutput.log"
    fi
    if [ -s "${GPGHOMEDIR}/gpgoutput.err" ]; then
	cat >&2 "${GPGHOMEDIR}/gpgoutput.err"
    fi
}

export_key_from_to() {
    local FROM="$1"
    local TO="$2"
    shift 2
    if ! aptkey_execute "$GPG_SH" --keyring "$(dearmor_filename "$FROM")" --export "$@" > "$TO" 2> "${GPGHOMEDIR}/gpgoutput.log"; then
	cat >&2 "${GPGHOMEDIR}/gpgoutput.log"
	false
    else
	chmod 0644 -- "$TO"
    fi
}

import_keyring_into_keyring() {
    local FROM="${1:-${GPGHOMEDIR}/pubring.gpg}"
    local TO="${2:-${GPGHOMEDIR}/pubring.gpg}"
    shift 2
    rm -f "${GPGHOMEDIR}/gpgoutput.log"
    # the idea is simple: We take keys from one keyring and copy it to another
    # we do this with so many checks in between to ensure that WE control the
    # creation, so we know that the (potentially) created $TO keyring is a
    # simple keyring rather than a keybox as gpg2 would create it which in turn
    # can't be read by gpgv.
    # BEWARE: This is designed more in the way to work with the current
    # callers, than to have a well defined it would be easy to add new callers to.
    if [ ! -s "$TO" ]; then
	if [ -s "$FROM" ]; then
	    if [ -z "$2" ]; then
		local OPTS
		if [ "${TO##*.}" = 'asc' ]; then
		    OPTS='--armor'
		fi
		export_key_from_to "$(dearmor_filename "$FROM")" "$TO" $OPTS ${1:+"$1"}
	    else
		create_new_keyring "$TO"
	    fi
	else
	    create_new_keyring "$TO"
	fi
    elif [ -s "$FROM" ]; then
	local EXPORTLIMIT="$1"
	if [ -n "$1$2" ]; then shift; fi
	local DEARMORTO="$(dearmor_filename "$TO")"
	if ! aptkey_execute "$GPG_SH" --keyring "$(dearmor_filename "$FROM")" --export ${EXPORTLIMIT:+"$EXPORTLIMIT"} \
	   | aptkey_execute "$GPG_SH" --keyring "$DEARMORTO" --batch --import "$@" > "${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
	    cat >&2 "${GPGHOMEDIR}/gpgoutput.log"
	    false
	fi
	if [ "$DEARMORTO" != "$TO" ]; then
	    export_key_from_to "$DEARMORTO" "${DEARMORTO}.asc" --armor
	    if ! cmp -s "$TO" "${DEARMORTO}.asc" 2>/dev/null; then
		cp -a "$TO" "${TO}~"
		mv -f "${DEARMORTO}.asc" "$TO"
	    fi
	fi
    fi
}

dearmor_keyring() {
    # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=831409#67
    # The awk script is more complex through to skip surrounding garbage and
    # to support multiple keys in one file (old gpgs generate version headers
    # which get printed with the original and hence result in garbage input for base64
    awk '/^-----BEGIN/{ x = 1; }
/^$/{ if (x == 1) { x = 2; }; }
/^[^=-]/{ if (x == 2) { print $0; }; }
/^-----END/{ x = 0; }' | base64 -d
}
dearmor_filename() {
    if [ "${1##*.}" = 'asc' ]; then
	local trusted="${GPGHOMEDIR}/${1##*/}.gpg"
	if [ -s "$1" ]; then
	    dearmor_keyring < "$1" > "$trusted"
	fi
	echo "$trusted"
    elif [ "${1##*.}" = 'gpg' ]; then
	echo "$1"
    elif [ "$(head -n 1 "$1" 2>/dev/null)" = '-----BEGIN PGP PUBLIC KEY BLOCK-----' ]; then
	local trusted="${GPGHOMEDIR}/${1##*/}.gpg"
	dearmor_keyring < "$1" > "$trusted"
	echo "$trusted"
    else
	echo "$1"
    fi
}
catfile() {
    cat "$(dearmor_filename "$1")" >> "$2"
}

merge_all_trusted_keyrings_into_pubring() {
    # does the same as:
    # foreach_keyring_do 'import_keys_from_keyring' "${GPGHOMEDIR}/pubring.gpg"
    # but without using gpg, just cat and find
    local PUBRING="$(readlink -f "${GPGHOMEDIR}")/pubring.gpg"
    rm -f "$PUBRING"
    touch "$PUBRING"
    foreach_keyring_do 'catfile' "$PUBRING"
}

import_keys_from_keyring() {
    import_keyring_into_keyring "$1" "$2"
}

merge_keys_into_keyrings() {
    import_keyring_into_keyring "$2" "$1" '' --import-options 'merge-only'
}

merge_back_changes() {
    if [ -n "$FORCED_KEYRING" ]; then
	# if the keyring was forced merge is already done
	if [ "$FORCED_KEYRING" != "$TRUSTEDFILE" ]; then
	    mv -f "$FORCED_KEYRING" "${FORCED_KEYRING}~"
	    export_key_from_to "$TRUSTEDFILE" "$FORCED_KEYRING" --armor
	fi
	return
    fi
    if [ -s "${GPGHOMEDIR}/pubring.gpg" ]; then
	# merge all updated keys
	foreach_keyring_do 'merge_keys_into_keyrings' "${GPGHOMEDIR}/pubring.gpg"
    fi
    # look for keys which were added or removed
    get_fingerprints_of_keyring "${GPGHOMEDIR}/pubring.orig.gpg" > "${GPGHOMEDIR}/pubring.orig.keylst"
    get_fingerprints_of_keyring "${GPGHOMEDIR}/pubring.gpg" > "${GPGHOMEDIR}/pubring.keylst"
    comm -3 "${GPGHOMEDIR}/pubring.keylst" "${GPGHOMEDIR}/pubring.orig.keylst" > "${GPGHOMEDIR}/pubring.diff"
    # key isn't part of new keyring, so remove
    cut -f 2 "${GPGHOMEDIR}/pubring.diff" | while read key; do
	if [ -z "$key" ]; then continue; fi
	foreach_keyring_do 'remove_key_from_keyring' "$key"
    done
    # key is only part of new keyring, so we need to import it
    cut -f 1 "${GPGHOMEDIR}/pubring.diff" | while read key; do
	if [ -z "$key" ]; then continue; fi
	import_keyring_into_keyring '' "$TRUSTEDFILE" "$key"
    done
}

setup_merged_keyring() {
    if [ -n "$FORCED_KEYID" ]; then
	merge_all_trusted_keyrings_into_pubring
	FORCED_KEYRING="${GPGHOMEDIR}/forcedkeyid.gpg"
	TRUSTEDFILE="${FORCED_KEYRING}"
	echo "#!/bin/sh
exec sh '($(escape_shell "${GPG}")' --keyring '$(escape_shell "${TRUSTEDFILE}")' \"\$@\"" > "${GPGHOMEDIR}/gpg.1.sh"
	GPG="${GPGHOMEDIR}/gpg.1.sh"
	# ignore error as this "just" means we haven't found the forced keyid and the keyring will be empty
	import_keyring_into_keyring '' "$TRUSTEDFILE" "$FORCED_KEYID" || true
    elif [ -z "$FORCED_KEYRING" ]; then
	merge_all_trusted_keyrings_into_pubring
	if [ -r "${GPGHOMEDIR}/pubring.gpg" ]; then
	    cp -a "${GPGHOMEDIR}/pubring.gpg" "${GPGHOMEDIR}/pubring.orig.gpg"
	else
	   touch "${GPGHOMEDIR}/pubring.gpg" "${GPGHOMEDIR}/pubring.orig.gpg"
	fi
	echo "#!/bin/sh
exec sh '$(escape_shell "${GPG}")' --keyring '$(escape_shell "${GPGHOMEDIR}/pubring.gpg")' \"\$@\"" > "${GPGHOMEDIR}/gpg.1.sh"
	GPG="${GPGHOMEDIR}/gpg.1.sh"
    else
	TRUSTEDFILE="$(dearmor_filename "$FORCED_KEYRING")"
	create_new_keyring "$TRUSTEDFILE"
	echo "#!/bin/sh
exec sh '$(escape_shell "${GPG}")' --keyring '$(escape_shell "${TRUSTEDFILE}")' \"\$@\"" > "${GPGHOMEDIR}/gpg.1.sh"
	GPG="${GPGHOMEDIR}/gpg.1.sh"
    fi
}

create_new_keyring() {
    # gpg defaults to mode 0600 for new keyrings. Create one with 0644 instead.
    if ! [ -e "$1" ]; then
	if [ -w "$(dirname "$1")" ]; then
	    touch -- "$1"
	    chmod 0644 -- "$1"
	fi
    fi
}

aptkey_execute() { sh "$@"; }

usage() {
    echo "Usage: apt-key [--keyring file] [command] [arguments]"
    echo
    echo "Manage apt's list of trusted keys"
    echo
    echo "  apt-key add <file>          - add the key contained in <file> ('-' for stdin)"
    echo "  apt-key del <keyid>         - remove the key <keyid>"
    echo "  apt-key export <keyid>      - output the key <keyid>"
    echo "  apt-key exportall           - output all trusted keys"
    echo "  apt-key update              - update keys using the keyring package"
    echo "  apt-key net-update          - update keys using the network"
    echo "  apt-key list                - list keys"
    echo "  apt-key finger              - list fingerprints"
    echo "  apt-key adv                 - pass advanced options to gpg (download key)"
    echo
    echo "If no specific keyring file is given the command applies to all keyring files."
}

while [ -n "$1" ]; do
   case "$1" in
      --keyring)
	 shift
	 if [ -z "$FORCED_KEYRING" -o "$FORCED_KEYRING" = '/dev/null' ]; then
	     TRUSTEDFILE="$1"
	     FORCED_KEYRING="$1"
	 elif [ "$TRUSTEDFILE" = "$FORCED_KEYRING" ]; then
	     create_gpg_home
	     FORCED_KEYRING="${GPGHOMEDIR}/mergedkeyrings.gpg"
	     echo -n '' > "$FORCED_KEYRING"
	     chmod 0644 -- "$FORCED_KEYRING"
	     catfile "$TRUSTEDFILE" "$FORCED_KEYRING"
	     catfile "$1" "$FORCED_KEYRING"
	 else
	     catfile "$1" "$FORCED_KEYRING"
	 fi
	 ;;
      --keyid)
	 shift
	 if [ -n "$FORCED_KEYID" ]; then
	     apt_error 'Specifying --keyid multiple times is not supported'
	     exit 1
	 fi
	 FORCED_KEYID="$1"
	 ;;
      --secret-keyring)
	 shift
	 FORCED_SECRET_KEYRING="$1"
	 ;;
      --readonly)
	 merge_back_changes() { true; }
	 create_new_keyring() { if [ ! -r "$FORCED_KEYRING" ]; then TRUSTEDFILE='/dev/null'; FORCED_KEYRING="$TRUSTEDFILE"; fi; }
	 ;;
      --fakeroot)
	 requires_root() { true; }
	 ;;
      --quiet)
	 aptkey_echo() { true; }
	 ;;
      --debug1)
	 # some cmds like finger redirect stderr to /dev/null …
	aptkey_execute() { echo 'EXEC:' "$@"; sh "$@"; }
	;;
      --debug2)
	 # … other more complicated ones pipe gpg into gpg.
	aptkey_execute() { echo >&2 'EXEC:' "$@"; sh "$@"; }
	;;
      --homedir)
	 # force usage of a specific homedir instead of creating a temporary
	 shift
	 GPGHOMEDIR="$1"
	;;
      --*)
	 echo >&2 "Unknown option: $1"
	 usage
	 exit 1;;
      *)
	 break;;
   esac
   shift
done

if [ -z "$TRUSTEDFILE" ]; then
   TRUSTEDFILE="/etc/apt/trusted.gpg"
   eval $(apt-config shell TRUSTEDFILE Apt::GPGV::TrustedKeyring)
   eval $(apt-config shell TRUSTEDFILE Dir::Etc::Trusted/f)
   if [ "$APT_KEY_NO_LEGACY_KEYRING" ]; then
        TRUSTEDFILE="/dev/null"
   fi
fi

command="$1"
if [ -z "$command" ]; then
    usage
    exit 1
fi
shift

prepare_gpg_home() {
    # crude detection if we are called from a maintainerscript where the
    # package depends on gnupg or not. We accept recommends here as
    # well as the script hopefully uses apt-key optionally then like e.g.
    # debian-archive-keyring for (upgrade) cleanup did
    if [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ] && [ -z "$APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE" ]; then
	if ! dpkg-query --show --showformat '${Pre-Depends}${Depends}${Recommends}\n' "$DPKG_MAINTSCRIPT_PACKAGE" 2>/dev/null | grep -E -q 'gpg|gnupg'; then
	    cat >&2 <<EOF
Warning: The $DPKG_MAINTSCRIPT_NAME maintainerscript of the package $DPKG_MAINTSCRIPT_PACKAGE
Warning: seems to use apt-key (provided by apt) without depending on gpg, gnupg, or gnupg2.
Warning: This will BREAK in the future and should be fixed by the package maintainer(s).
Note: Check first if apt-key functionality is needed at all - it probably isn't!
EOF
	fi
    fi
    eval "$(apt-config shell GPG_EXE Apt::Key::gpgcommand)"
    if [ -n "$GPG_EXE" ] && command_available "$GPG_EXE"; then
	true
    elif command_available 'gpg'; then
	GPG_EXE="gpg"
    elif command_available 'gpg2'; then
	GPG_EXE="gpg2"
    elif command_available 'gpg1'; then
	GPG_EXE="gpg1"
    else
	apt_error 'gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation'
	exit 255
    fi

create_gpg_home

# now tell gpg that it shouldn't try to maintain this trustdb file
    echo "#!/bin/sh
exec '$(escape_shell "${GPG_EXE}")' --ignore-time-conflict --no-options --no-default-keyring \\
--homedir '$(escape_shell "${GPGHOMEDIR}")' --no-auto-check-trustdb --trust-model always \"\$@\"" > "${GPGHOMEDIR}/gpg.0.sh"
    GPG_SH="${GPGHOMEDIR}/gpg.0.sh"
    GPG="$GPG_SH"

# create the trustdb with an (empty) dummy keyring
    # older gpgs required it, newer gpgs even warn that it isn't needed,
    # but require it nonetheless for some commands, so we just play safe
    # here for the foreseeable future and create a dummy one
    touch "${GPGHOMEDIR}/empty.gpg"
    if ! "$GPG_EXE" --ignore-time-conflict --no-options --no-default-keyring \
       --homedir "$GPGHOMEDIR" --quiet --check-trustdb --keyring "${GPGHOMEDIR}/empty.gpg" >"${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
       cat >&2 "${GPGHOMEDIR}/gpgoutput.log"
       false
    fi

# We don't usually need a secret keyring, of course, but
    # for advanced operations, we might really need a secret keyring after all
    if [ -n "$FORCED_SECRET_KEYRING" ] && [ -r "$FORCED_SECRET_KEYRING" ]; then
	if ! aptkey_execute "$GPG" -v --batch --import "$FORCED_SECRET_KEYRING" >"${GPGHOMEDIR}/gpgoutput.log" 2>&1; then
	    # already imported keys cause gpg1 to fail for some reason… ignore this error
	    if ! grep -q 'already in secret keyring' "${GPGHOMEDIR}/gpgoutput.log"; then
		cat >&2 "${GPGHOMEDIR}/gpgoutput.log"
		false
	    fi
	fi
    else
       # and then, there are older versions of gpg which panic and implode
       # if there isn't one available - and writeable for imports
       # and even if not output is littered with the creation of a secring,
       # so lets call import once to have it create what it wants in silence
       echo -n | aptkey_execute "$GPG" --batch --import >/dev/null 2>&1 || true
    fi
}

warn_on_script_usage() {
    if [ -n "$APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE" ]; then
	return
    fi
    # (Maintainer) scripts should not be using apt-key
    if [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
	echo >&2 "Warning: apt-key should not be used in scripts (called from $DPKG_MAINTSCRIPT_NAME maintainerscript of the package ${DPKG_MAINTSCRIPT_PACKAGE})"
    fi

echo >&2 "Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8))."
}

warn_outside_maintscript() {
    # In del, we want to warn in interactive use, but not inside maintainer
    # scripts, so as to give people a chance to migrate keyrings.
    #
    # FIXME: We should always warn starting in 2022.
    if [ -z "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
	echo >&2 "Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8))."
    fi
}

if [ "$command" != 'help' ] && [ "$command" != 'verify' ]; then
    prepare_gpg_home
fi

case "$command" in
    add)
	warn_on_script_usage
	requires_root
	setup_merged_keyring
	aptkey_execute "$GPG" --quiet --batch --import "$@"
	merge_back_changes
	aptkey_echo "OK"
        ;;
    del|rm|remove)
	# no script warning here as removing 'add' usage needs 'del' for cleanup
	warn_outside_maintscript
	requires_root
	foreach_keyring_do 'remove_key_from_keyring' "$@"
	aptkey_echo "OK"
        ;;
    update)
	warn_on_script_usage
	requires_root
	setup_merged_keyring
	update
	merge_back_changes
	;;
    net-update)
	warn_on_script_usage
	requires_root
	setup_merged_keyring
	net_update
	merge_back_changes
	;;
    list|finger*)
	warn_on_script_usage
	foreach_keyring_do 'list_keys_in_keyring' --fingerprint "$@"
	;;
    export|exportall)
	warn_on_script_usage
	merge_all_trusted_keyrings_into_pubring
	aptkey_execute "$GPG_SH" --keyring "${GPGHOMEDIR}/pubring.gpg" --armor --export "$@"
	;;
    adv*)
	warn_on_script_usage
	setup_merged_keyring
	aptkey_echo "Executing: $GPG" "$@"
	aptkey_execute "$GPG" "$@"
	merge_back_changes
	;;
    verify)
	GPGV=''
	eval $(apt-config shell GPGV Apt::Key::gpgvcommand)
	if [ -n "$GPGV" ] && command_available "$GPGV"; then true;
	elif command_available 'gpgv'; then GPGV='gpgv';
	elif command_available 'gpgv2'; then GPGV='gpgv2';
	elif command_available 'gpgv1'; then GPGV='gpgv1';
	else
	   apt_error 'gpgv, gpgv2 or gpgv1 required for verification, but neither seems installed'
	   exit 29
	fi
	# for a forced keyid we need gpg --export, so full wrapping required
	if [ -n "$FORCED_KEYID" ]; then
	    prepare_gpg_home
	else
	    create_gpg_home
	fi
	setup_merged_keyring
	if [ -n "$FORCED_KEYRING" ]; then
	    "$GPGV" --homedir "${GPGHOMEDIR}" --keyring "$(dearmor_filename "${FORCED_KEYRING}")" --ignore-time-conflict "$@"
	else
	    "$GPGV" --homedir "${GPGHOMEDIR}" --keyring "${GPGHOMEDIR}/pubring.gpg" --ignore-time-conflict "$@"
	fi
	;;
    help)
        usage
        ;;
    *)
        usage
        exit 1
        ;;
esac

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