M2-Planet/sha256.sh

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#! /bin/sh
# Copyright (C) 2019 ng0 <ng0@n0.is>
#
# This file is part of mescc-tools
#
# mescc-tools 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 3 of the License, or (at
# your option) any later version.
#
# mescc-tools 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.
#
# You should have received a copy of the GNU General Public License
# along with mescc-tools. If not, see <http://www.gnu.org/licenses/>.
set -ex
# It's bad to rely on the uname here, but it's a start.
# What this does is to consider the major implementations of
# sha256sum tools and their differences and call them
# accordingly.
sha256_check()
{
if [ "$(get_machine --OS)" = "Linux" ]; then
LANG=C sha256sum -c "$1"
elif [ "$(get_machine --OS)" = "NetBSD" ]; then
sum -a SHA256 -n -c "$1"
elif [ "$(get_machine --OS)" = "FreeBSD" ]; then
sha256 -r -c "$1"
else
echo "Unsupported sha256 tool, please send a patch to support it"
exit 77
fi
}