2018-12-08 01:11:06 +05:30
|
|
|
#!/bin/sh
|
2015-03-31 23:18:45 +05:30
|
|
|
# This is a reimplementation of the systemd binfmt.d code to register
|
|
|
|
# misc binary formats with the kernel.
|
|
|
|
#
|
|
|
|
# See the binfmt.d manpage as well:
|
|
|
|
# http://0pointer.de/public/systemd-man/binfmt.d.html
|
|
|
|
# This script should match the manpage as of 2015/03/31
|
|
|
|
|
2015-12-05 04:22:19 +05:30
|
|
|
# Copyright (c) 2015 The OpenRC Authors.
|
|
|
|
# See the Authors file at the top-level directory of this distribution and
|
|
|
|
# https://github.com/OpenRC/openrc/blob/master/AUTHORS
|
|
|
|
#
|
|
|
|
# This file is part of OpenRC. It is subject to the license terms in
|
|
|
|
# the LICENSE file found in the top-level directory of this
|
|
|
|
# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
|
|
|
|
# This file may not be copied, modified, propagated, or distributed
|
|
|
|
# except according to the terms contained in the LICENSE file.
|
2015-03-31 23:18:45 +05:30
|
|
|
apply_file() {
|
|
|
|
[ $# -lt 1 ] && return 0
|
|
|
|
FILE="$1"
|
|
|
|
LINENUM=0
|
|
|
|
|
|
|
|
### FILE FORMAT ###
|
|
|
|
# See https://www.kernel.org/doc/Documentation/binfmt_misc.txt
|
2016-02-19 06:48:13 +05:30
|
|
|
while read -r line; do
|
2015-03-31 23:18:45 +05:30
|
|
|
LINENUM=$(( LINENUM+1 ))
|
|
|
|
case $line in
|
|
|
|
\#*) continue ;;
|
|
|
|
\;*) continue ;;
|
|
|
|
esac
|
|
|
|
|
|
|
|
echo "${line}" > /proc/sys/fs/binfmt_misc/register
|
|
|
|
rc=$?
|
|
|
|
if [ $rc -ne 0 ]; then
|
|
|
|
printf "binfmt: invalid entry on line %d of \`%s'\n" \
|
|
|
|
"$LINENUM" "$FILE" >&2
|
|
|
|
error=1
|
|
|
|
fi
|
|
|
|
done <$FILE
|
|
|
|
return $rc
|
|
|
|
}
|
|
|
|
|
|
|
|
[ -e /proc/sys/fs/binfmt_misc/register ] || exit 0
|
|
|
|
error=0
|
|
|
|
if [ $# -gt 0 ]; then
|
|
|
|
while [ $# -gt 0 ]; do
|
|
|
|
apply_file "$1"
|
|
|
|
shift
|
|
|
|
done
|
|
|
|
else
|
|
|
|
# The hardcoding of these paths is intentional; we are following the
|
|
|
|
# systemd spec.
|
|
|
|
binfmt_dirs='/usr/lib/binfmt.d/ /run/binfmt.d/ /etc/binfmt.d/'
|
|
|
|
binfmt_basenames=''
|
|
|
|
binfmt_d=''
|
|
|
|
|
|
|
|
# Build a list of sorted unique basenames
|
|
|
|
# directories declared later in the binfmt_d list will override earlier
|
|
|
|
# directories, on a per file basename basis.
|
|
|
|
# `/run/binfmt.d/foo.conf' supersedes `/usr/lib/binfmt.d/foo.conf'.
|
|
|
|
# `/run/binfmt.d/foo.conf' will always be read after `/etc/binfmt.d/bar.conf'
|
|
|
|
for d in ${binfmt_dirs} ; do
|
|
|
|
[ -d $d ] && for f in ${d}/*.conf ; do
|
|
|
|
case "${f##*/}" in
|
|
|
|
systemd.conf|systemd-*.conf) continue;;
|
|
|
|
esac
|
|
|
|
[ -e $f ] && binfmt_basenames="${binfmt_basenames}\n${f##*/}"
|
|
|
|
done # for f in ${d}
|
|
|
|
done # for d in ${binfmt_dirs}
|
|
|
|
binfmt_basenames="$(printf "${binfmt_basenames}\n" | sort -u )"
|
|
|
|
|
|
|
|
for b in $binfmt_basenames ; do
|
|
|
|
real_f=''
|
|
|
|
for d in $binfmt_dirs ; do
|
|
|
|
f=${d}/${b}
|
|
|
|
[ -e "${f}" ] && real_f=$f
|
|
|
|
done
|
|
|
|
[ -e "${real_f}" ] && binfmt_d="${binfmt_d} ${real_f}"
|
|
|
|
done
|
|
|
|
|
|
|
|
# loop through the gathered fragments, sorted globally by filename.
|
|
|
|
# `/run/binfmt.d/foo.conf' will always be read after `/etc/binfmt.d/bar.conf'
|
|
|
|
for FILE in $binfmt_d ; do
|
|
|
|
apply_file "$FILE"
|
|
|
|
done
|
|
|
|
fi
|
|
|
|
|
|
|
|
exit $error
|
|
|
|
|
|
|
|
# vim: set ts=2 sw=2 sts=2 noet ft=sh:
|