| # Ensure that du can handle a 2GB file (i.e., a file of size 2^31 bytes) | |
| # Before coreutils-5.93, on systems with a signed, 32-bit stat.st_blocks | |
| # one of du's computations would overflow. | |
| # Copyright (C) 2005-2025 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/>. | |
| . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src | |
| print_ver_ du | |
| # Creating a 2GB file counts as 'very expensive'. | |
| very_expensive_ | |
| # Get number of free kilobytes on current partition, so we can | |
| # skip this test if there is insufficient free space. | |
| free_kb=$(df -k --output=avail . | tail -n1) | |
| case "$free_kb" in | |
| [0-9]*) ;; | |
| *) skip_ "invalid size from df: $free_kb";; | |
| esac | |
| # Require about 3GB free. | |
| min_kb=3000000 | |
| test $min_kb -lt $free_kb || | |
| { | |
| skip_ \ | |
| "too little free space on current partition: $free_kb (need $min_kb KB)" | |
| } | |
| big=big | |
| if ! fallocate -l2G $big; then | |
| rm -f $big | |
| { | |
| is_local_dir_ . || skip_ 'Not writing 2GB data to remote' | |
| for i in $(seq 100); do | |
| # Note: 2147483648 == 2^31. Print floor(2^31/100) per iteration. | |
| printf %21474836s x || fail=1 | |
| done | |
| # After the final iteration, append the remaining 48 bytes. | |
| printf %48s x || fail=1 | |
| } > $big || fail=1 | |
| fi | |
| # The allocation may be done asynchronously (BTRFS for example) | |
| sync $big || framework_failure_ | |
| du -k $big > out1 || fail=1 | |
| rm -f $big | |
| sed 's/^2[0-9][0-9][0-9][0-9][0-9][0-9] '$big'$/~2M/' out1 > out | |
| cat <<\EOF > exp || framework_failure_ | |
| ~2M | |
| EOF | |
| compare exp out || fail=1 | |
| Exit $fail | |