| # Ensure that du does not rely on narrow types like size_t for | |
| # file sizes or sums. | |
| # Copyright (C) 2003-2025 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 | |
| require_sparse_support_ | |
| # timeout to avoid hang on GNU/Hurd from 2019 | |
| timeout 10 dd bs=1 seek=8G of=big < /dev/null 2> /dev/null | |
| if test $? != 0; then | |
| skip_ 'cannot create a file large enough for this test; possibly | |
| because file offsets are only 32 bits on this file system' | |
| fi | |
| # FIXME: this should be a test of dd. | |
| # On some systems (at least linux-2.4.18 + NFS to Solaris system) | |
| # the 'dd' command above mistakenly creates a file of length '0', yet | |
| # doesn't fail. The root of that failure is that the ftruncate call | |
| # returns zero but doesn't do its job. Detect this failure. | |
| set x $(ls -gG big) | |
| size=$4 | |
| if test "$size" = 0; then | |
| skip_ "cannot create a file large enough for this test | |
| possibly because this system's NFS support is buggy | |
| Consider rerunning this test on a different file system." | |
| fi | |
| # This would print '0 big' with coreutils-4.5.8. | |
| du -ab big > out || fail=1 | |
| cat <<\EOF > exp | |
| 8589934592 big | |
| EOF | |
| compare exp out || fail=1 | |
| Exit $fail | |