#!/bin/bash
#
# Copyright (C) 2024 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="fd opening a file cannot be readlink(2)'ed"

. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_skip_nonroot

ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_HELPER_MKFDS"

ts_cd "$TS_OUTDIR"

PID=
FD=3
EXPR=

{
    coproc MKFDS { "$TS_HELPER_MKFDS" ro-regular-file "$FD"; }
    if read -u ${MKFDS[0]} PID; then
	EXPR='(ASSOC == "exe")'
	${TS_CMD_LSFD} --_drop-privilege -p "$PID" -n -o UID,ASSOC,TYPE,SOURCE -Q "$EXPR"
	echo "UID,ASSOC,TYPE,SOURCE: " $?
	echo DONE >&"${MKFDS[1]}"
    fi
} > "$TS_OUTPUT" 2>&1
wait "${MKFDS_PID}"

ts_finalize