35 lines
1.2 KiB
Bash
35 lines
1.2 KiB
Bash
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#!/bin/sh
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# Before gzip-1.4, this the use of memcpy in inflate_codes could
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# mistakenly operate on overlapping regions. Exercise that code.
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# Copyright (C) 2010-2016 Free Software Foundation, Inc.
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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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# 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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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# limit so don't run it by default.
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. "${srcdir=.}/init.sh"; path_prepend_ .
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# The input must be larger than 32KiB and slightly
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# less uniform than e.g., all zeros.
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printf wxy%032767d 0 | tee in | gzip > in.gz || framework_failure_
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fail=0
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# Before the fix, this would call memcpy with overlapping regions.
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gzip -dc in.gz > out || fail=1
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compare in out || fail=1
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Exit $fail
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