* tests/cut/bounded-memory.sh: New file. * tests/local.mk (all_tests): Add the test. --- tests/cut/bounded-memory.sh | 40 +++++++++++++++++++++++++++++++++++++ tests/local.mk | 1 + 2 files changed, 41 insertions(+) create mode 100755 tests/cut/bounded-memory.sh
diff --git a/tests/cut/bounded-memory.sh b/tests/cut/bounded-memory.sh new file mode 100755 index 000000000..51b1d991c --- /dev/null +++ b/tests/cut/bounded-memory.sh @@ -0,0 +1,40 @@ +#!/bin/sh +# Ensure that cut uses bounded memory when possible. + +# Copyright (C) 2025 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/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ cut + +vm=$(get_min_ulimit_v_ cut -b1 /dev/null) || + skip_ 'failed to determine memory limit' + +# There is no way to implement '-s -f1' without allocating unbounded memory. +# Check the rest. +for opts in '-c1' '-b1' '-s -f2' '-f1'; do + timeout 0.5 $SHELL -c \ + "(ulimit -v $(($vm+6000)) \ + && cut $opts </dev/zero >/dev/null 2>err)" + ret=$? + test -f err || skip_ 'shell ulimit failure' + test $ret = 124 || { + fail=1 + cat err + echo "cut $opts used too much memory" >&2 + } +done + +Exit $fail diff --git a/tests/local.mk b/tests/local.mk index 4ae003719..ec1b12872 100644 --- a/tests/local.mk +++ b/tests/local.mk @@ -283,6 +283,7 @@ all_tests = \ tests/chcon/chcon-fail.sh \ tests/misc/coreutils.sh \ tests/cut/cut.pl \ + tests/cut/bounded-memory.sh \ tests/cut/cut-huge-range.sh \ tests/wc/wc.pl \ tests/wc/wc-cpu.sh \ -- 2.52.0
