iw5-mod/deps/zstd/tests/gzip/trailing-nul.sh

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#!/bin/sh
# gzip accepts trailing NUL bytes; don't fail if there is exactly one.
# Before gzip-1.4, this would fail.
# Copyright (C) 2009-2016 Free Software Foundation, Inc.
# This program 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.
# This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
# limit so don't run it by default.
. "${srcdir=.}/init.sh"; path_prepend_ .
(echo 0 | gzip; printf '\0') > 0.gz || framework_failure_
(echo 00 | gzip; printf '\0\0') > 00.gz || framework_failure_
(echo 1 | gzip; printf '\1') > 1.gz || framework_failure_
fail=0
for i in 0 00 1; do
gzip -d $i.gz; ret=$?
test $ret -eq $i || fail=1
test $ret = 1 && continue
echo $i > exp || fail=1
compare exp $i || fail=1
done
Exit $fail