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tools/check-hash.sh: Add a tool check hash on downloaded packages.

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Michał Łyszczek 2019-02-18 07:24:55 -06:00 committed by Gregory Nutt
parent 8f16bb8ebc
commit 0b8e12b8cf
1 changed files with 89 additions and 0 deletions
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tools/check-hash.sh Executable file
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#!/usr/bin/env sh
############################################################################
# apps/tools/check-hash.sh
#
# Copyright (C) 2019 Michał Łyszczek. All rights reserved.
# Author: Michał Łyszczek <michal.lyszczek@bofc.pl>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
# 3. Neither the name NuttX 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 OWNER 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.
#
############################################################################
usage="Usage: $0 <hash-algo> <expected-hash> <file-to-check>"
if [ ${#} -ne 3 ]
then
echo "ERROR: invalid number of arguments passed"
echo ""
echo ${usage}
exit 1
fi
hash_algo=${1}
exp_hash=${2}
file_to_check=${3}
if [ ! -f "${file_to_check}" ]; then
echo "ERROR: file '${file_to_check}' does not exist"
echo ""
echo ${usage}
exit 1
fi
case "${hash_algo}" in
sha1|sha224|sha256|sha384|sha512)
# valid hash passed, continue
;;
*)
echo "ERROR: invalid hash '${hash_algo}' for file '${file_to_check}'"
echo "supported hashes are:"
echo " sha1, sha224, sha256, sha384, sha512"
echo ""
echo ${usage}
exit 1
esac
# Calculate hash value of passed file
calc_hash=$( ${hash_algo}sum "${file_to_check}" | cut -d' ' -f1 )
# Does it match expected hash?
if [ "${exp_hash}" == "${calc_hash}" ]; then
# yes, they match, we're good
exit 0
fi
# No, hashes don't match, print error message and remove corrupted file
echo "ERROR: file ${file_to_check} has invalid hash"
echo "got: ${calc_hash}"
echo "expected: ${exp_hash}"
rm "${file_to_check}"
exit 1