| # Ensure that cut does not allocate mem for large ranges | |
| # Copyright (C) 2012-2025 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/>. | |
| . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src | |
| print_ver_ cut | |
| getlimits_ | |
| vm=$(get_min_ulimit_v_ returns_ 0 cut -b1 /dev/null) \ | |
| || skip_ 'shell lacks ulimit, or ASAN enabled' | |
| # Ensure we can cut up to our sentinel value. | |
| # Don't use expr to subtract one, | |
| # since UINTMAX_MAX may exceed its maximum value. | |
| CUT_MAX=$(expr $UINTMAX_MAX - 1) || framework_failure_ | |
| # From coreutils-8.10 through 8.20, this would make cut try to allocate | |
| # a 256MiB bit vector. | |
| (ulimit -v $vm && cut -b$CUT_MAX- /dev/null > err 2>&1) || fail=1 | |
| # Up to and including coreutils-8.21, cut would allocate possibly needed | |
| # memory upfront. Subsequently extra memory is no longer needed. | |
| (ulimit -v $vm && cut -b1-$CUT_MAX /dev/null >> err 2>&1) || fail=1 | |
| # Explicitly disallow values above CUT_MAX | |
| (ulimit -v $vm && returns_ 1 cut -b$UINTMAX_MAX /dev/null 2>/dev/null) || | |
| fail=1 | |
| (ulimit -v $vm && returns_ 1 cut -b$UINTMAX_OFLOW /dev/null 2>/dev/null) || | |
| fail=1 | |
| compare /dev/null err || fail=1 | |
| Exit $fail | |