/usr/sbin/update-openssh-known-hosts is in openssh-known-hosts 0.6.2-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | #!/bin/bash
# Copyright (C) 2009-2014 Timo Weingärtner <timo@tiwe.de>
#
# This file is part of openssh-known-hosts.
#
# openssh-known-hosts 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 3 of the License, or
# (at your option) any later version.
#
# openssh-known-hosts 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 openssh-known-hosts. If not, see <http://www.gnu.org/licenses/>.
set -euC
CONFDIR=${CONFDIR:-/etc/openssh-known-hosts}
PLUGIN_PATH=${PLUGIN_PATH:-/usr/local/share/openssh-known-hosts/plugins:/usr/share/openssh-known-hosts/plugins}
CACHEDIR=${CACHEDIR:-/var/cache/openssh-known-hosts}
LOCK=${LOCK:-/var/lock/openssh-known-hosts}
OUTFILE=${OUTFILE:-/var/lib/openssh-known-hosts/ssh_known_hosts}
path_search () {
search="$1"
shift
local IFS
IFS=:
set -- $@
if [[ ${search} =~ / ]]; then
echo "${search}"
return 0
fi
for path; do
if [ -f "${path}/${search}" ]; then
echo "${path}/${search}"
return 0
fi
done
echo "'${search}' not found in '$*'!" >&2
exit 127
}
cleanup () {
rm -f "${OUTFILE}.new"
kill "${LOCKPID}"
lockfile-remove "${LOCK}"
}
if [ $# -eq 1 ] && [ "$1" = "-f" ]; then
fail=1
else
fail=''
fi
trap cleanup EXIT
lockfile-create "${LOCK}"
lockfile-touch "${LOCK}" &
LOCKPID="$!"
mkdir -p "${CACHEDIR}"
cd "${CACHEDIR}"
find -mindepth 2 -maxdepth 2 -type f -name new -delete
run-parts --list "${CONFDIR}/sources/" | while read sourcefile; do
source=${sourcefile##*/}
mkdir -p "${source}"
(
set -a
cd "${source}"
. "${sourcefile}"
$(path_search "$PLUGIN" "$PLUGIN_PATH") >| log 2>&1 || {
exitcode=$?
rm -f new
ignore=''
for e in ${EXIT_IGNORE:-0}; do
if [[ $e = "$exitcode" ]]; then
ignore=1
break
fi
done
if [ -z "$ignore" -o "$fail" ]; then
echo "${source} exited with code ${exitcode}, log follows:"
cat log
echo
fi
if [ "$fail" ]; then
exit 1
fi
} >&2
) || exit 1
if [ -e "${source}/new" ]; then
mv "${source}/new" "${source}/current"
fi
if [ -e "${source}/current" ]; then
if [ -e "${sourcefile}.filter" ]; then
if [[ ${source}/filtered -ot ${source}/current ]] || [[ ${source}/filtered -ot ${sourcefile}.filter ]]; then
mapfile -t filter < "${sourcefile}.filter"
for i in "${!filter[@]}"; do
if [[ ${filter[$i]} =~ ^($|#) ]]; then
unset filter[$i]
fi
done
while read hostlist rest; do
IFS=, read -a hostarray <<<"$hostlist"
new_hostlist=''
for host in "${hostarray[@]}"; do
for rule in "${filter[@]}"; do
if [[ ${host} =~ ${rule#* } ]]; then
if [[ ${rule%% *} =~ ^[aopy] ]]; then
new_hostlist="${new_hostlist}${host},"
fi
break
fi
done
done
[ "$new_hostlist" ] || continue
echo "${new_hostlist%,} ${rest}"
done < "${source}/current" | sort -u >| "${source}/filtered.new"
mv "${source}/filtered.new" "${source}/filtered"
fi
cat "${source}/filtered" >&3
else
sort -u "${source}/current" >&3
fi
fi
done 3>| "${OUTFILE}.new"
if cmp -s "${OUTFILE}" "${OUTFILE}.new"; then
rm "${OUTFILE}.new"
else
mv "${OUTFILE}.new" "${OUTFILE}"
fi
# clean up cache dirs of vanished sources
for d in *; do
[ -d "$d" ] || continue
[ -e "${CONFDIR}/sources/$d" ] || rm -fr "$d"
done
# vim:set ft=sh:
|