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#!/bin/sh
# Ensure that unexpand uses bounded memory.
# Copyright (C) 2025-2026 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/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ unexpand
vm=$(get_min_ulimit_v_ unexpand /dev/null) ||
skip_ 'failed to determine memory limit'
timeout 0.5 $SHELL -c \
"(ulimit -v $(($vm+6000)) \
&& unexpand </dev/zero >/dev/null 2>err)"
ret=$?
test -f err || skip_ 'shell ulimit failure'
test $ret = 124 || {
fail=1
cat err
echo "unexpand used too much memory" >&2
}
Exit $fail
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