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|
#!/bin/bash
set -euC
CONFDIR=/etc/openssh-known-hosts
PLUGIN_PATH=/usr/local/share/openssh-known-hosts/plugins:/usr/share/openssh-known-hosts/plugins
CACHEDIR=/var/cache/openssh-known-hosts
LOCK=/var/lock/openssh-known-hosts
OUTFILE=/var/lib/openssh-known-hosts/ssh_known_hosts
path_search () {
search="$1"
shift
local IFS
IFS=:
set -- $@
if [ "${search}" != "${search#*/}" ]; then
echo "${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 [ $# = 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=`basename ${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" = "$exitcode" ]; then
ignore=1
break
fi
done
if [ "$ignore" != "1" -o "$fail" = "1" ]; then
echo "${source} exited with code ${exitcode}, log follows:"
cat log
echo
fi
if [ "$fail" = "1" ]; then
exit 1
fi
} >&2
) || exit 1
if [ -e ${source}/new ]; then
mv ${source}/new ${source}/current
fi
if [ -e ${source}/current ]; then
sort -u ${source}/current >&3
fi
done 3>| "${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:
|
