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https://github.com/vincentmli/bpfire.git
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b8764ff226
Reported-by: Arne Fitzenreiter <arne.fitzenreiter@ipfire.org> Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
67 lines
2.4 KiB
Bash
67 lines
2.4 KiB
Bash
#!/bin/sh
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2007-2022 IPFire Team <info@ipfire.org> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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function download() {
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wget -U "IPFire-NetInstall/2.x" "$@"
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}
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if [ $# -lt 2 ]; then
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echo "$0: Insufficient number of arguments" >&2
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exit 2
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fi
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OUTPUT="${1}"
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URL="${2}"
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# Mount a tmpfs which is big enough to hold the ISO image
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OUTPUT_DIR="${OUTPUT%/*}"
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mkdir -p "${OUTPUT_DIR}"
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if ! mount -t tmpfs none "${OUTPUT_DIR}" -o size=512M; then
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echo "Could not mount tmpfs to ${OUTPUT_DIR}" >&2
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exit 1
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fi
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echo "Downloading ${URL}..."
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if ! download -O "${OUTPUT}" "${URL}"; then
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echo "Download failed" >&2
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rm -f "${OUTPUT}"
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exit 1
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fi
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# Download went well. Checking for BLAKE2 sum
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if download -O "${OUTPUT}.b2" "${URL}.b2" &>/dev/null; then
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# Read downloaded checksum
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read -r b2sum rest < "${OUTPUT}.b2"
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rm -f "${OUTPUT}.b2"
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# Compute checkum of downloaded image file
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read -r b2sum_image rest <<< "$(b2sum "${OUTPUT}")"
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if [ "${b2sum}" != "${b2sum_image}" ]; then
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echo "BLAKE2 checksum mismatch: ${b2sum} != ${b2sum_image}" >&2
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exit 2
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fi
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fi
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exit 0
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