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|
#!/bin/bash
#
# Copyright (C) 2021 Masatake YAMATO <yamato@redhat.com>
#
# This file is part of util-linux.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This file 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.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="directory"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_CMD_FINDMNT"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_check_prog "stat"
ts_check_prog "id"
ts_check_prog "sed"
ts_cd "$TS_OUTDIR"
PID=
FD=3
EXPR=
DIR=/
mntflag=$(findmnt -n -o OPTIONS -T $DIR)
noatime=
case "${mntflag}" in
*noatime*)
noatime=1
esac
{
coproc MKFDS { "$TS_HELPER_MKFDS" directory $FD dir=$DIR; }
if read -u ${MKFDS[0]} PID; then
EXPR='(PID == '"${PID}"') and (FD == '"$FD"')'
${TS_CMD_LSFD} -n -o ASSOC,MODE,TYPE,FLAGS,NAME -Q "${EXPR}" | {
#
# Normalize the output:
#
# See https://github.com/util-linux/util-linux/issues/1511#issuecomment-1029968595
# It seems that syscalls opening a directory on mips64 GNU/Linux take the
# O_LARGEFILE flag.
#
sed -e 's/largefile,\|,largefile//'
} | {
#
# Normalize the output:
#
# See https://github.com/util-linux/util-linux/issues/1709#issuecomment-1156333293
# If the file system where the target directory ($DIR) is mounted with
# "noatime" flag, Linux kernel may set O_NOATIME to the fd associated with $DIR.
#
if [ "$noatime" = 1 ]; then
sed -e 's/noatime,\|,noatime//'
else
cat
fi
}
echo 'ASSOC,MODE,TYPE,FLAGS,NAME': $?
LSFD_PID=$(${TS_CMD_LSFD} --raw -n -o PID -Q "${EXPR}")
echo 'PID[RUN]:' $?
[ "${LSFD_PID}" == "${PID}" ]
echo 'PID[STR]:' $?
LSFD_INODE=$(${TS_CMD_LSFD} --raw -n -o INODE -Q "${EXPR}")
echo 'INODE[RUN]:' $?
[ "${LSFD_INODE}" == "$(stat -c %i /)" ]
echo 'INODE[STR]:' $?
LSFD_UID=$(${TS_CMD_LSFD} --raw -n -o UID -Q "${EXPR}")
echo 'UID[RUN]:' $?
[ "${LSFD_UID}" == $(id -u) ]
echo 'UID[STR]:' $?
LSFD_USER=$(${TS_CMD_LSFD} --raw -n -o USER -Q "${EXPR}")
echo 'USER[RUN]:' $?
[ "${LSFD_USER}" == $(id -u -n) ]
echo 'USER[STR]:' $?
LSFD_NLINK=$(${TS_CMD_LSFD} --raw -n -o NLINK -Q "${EXPR}")
echo 'NLINK[RUN]:' $?
if [ "${LSFD_NLINK}" == $(stat -c %h /) ]; then
echo 'NLINK[STR]:' 0
else
echo 'NLINK[STR]:' 1
echo 'LSFD_NLINK:' "${LSFD_NLINK}"
echo 'stat reports:' "$(stat -c %h /)"
fi
echo DONE >&"${MKFDS[1]}"
fi
wait ${MKFDS_PID}
} > $TS_OUTPUT 2>&1
ts_finalize
|
