#
# Copyright (c) 2022-2023, Jesús Daniel Colmenares Oviedo <DtxdF@disroot.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of the copyright holder nor the names of its
#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

lib_load "${LIBDIR}/random"
lib_load "${LIBDIR}/sysexits"

lib_generate_tempfile()
{
	mkdir -p "${TMPDIR}" || exit $?

	local tempfile
	tempfile=`TMPDIR="${TMPDIR}" mktemp -t appjail` || exit $?

	echo -n > "${tempfile}" || exit $?
	printf "%s\n" "${tempfile}"
}

lib_generate_tempdir()
{
	mkdir -p "${TMPDIR}" || exit $?

	local tempdir
	tempdir=`TMPDIR="${TMPDIR}" mktemp -d -t appjail` || exit $?

	printf "%s\n" "${tempdir}"
}

lib_generate_fifo()
{
	local fifo_filename=`random_hexstring 48 0 15 | tr -d '\n'`
	fifo_filename="${fifo_filename}.fifo"
	fifo_filename="${TMPDIR}/${fifo_filename}"

	mkfifo -m 660 "${fifo_filename}" || exit $?

	printf "%s\n" "${fifo_filename}"
}
