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#!/bin/sh
# Before gzip-1.4, this the use of memcpy in inflate_codes could
# mistakenly operate on overlapping regions. Exercise that code.
# Copyright (C) 2010-2018 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_ ..
# The input must be larger than 32KiB and slightly
# less uniform than e.g., all zeros.
printf wxy%032767d 0 | tee in | gzip > in.gz || framework_failure_
fail=0
# Before the fix, this would call memcpy with overlapping regions.
gzip -dc in.gz > out || fail=1
compare in out || fail=1
Exit $fail
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