48 lines
1.8 KiB
Bash
Executable file
48 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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# Ensure that df dereferences symlinks to file system nodes
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# Copyright (C) 2013-2025 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ df
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file_system=$(df --out=source '.' | tail -n1) ||
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skip_ "cannot determine '.' file system"
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ln -s "$file_system" symlink || framework_failure_
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df --out=source,target "$file_system" > exp ||
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skip_ "cannot get info for $file_system"
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df --out=source,target symlink > out || fail=1
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compare exp out || fail=1
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# Ensure we output the same values for device nodes and '.'
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# This was not the case in coreutils-8.22 on systems
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# where the device in the mount list was a symlink itself.
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# I.e., '.' => /dev/mapper/fedora-home -> /dev/dm-2
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# Restrict this test to systems with a 1:1 mapping between
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# source and target. This excludes for example BTRFS sub-volumes.
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if test "$(df --output=source | grep -F "$file_system" | wc -l)" = 1; then
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# Restrict to systems with a single file system root (and have findmnt(1))
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if test "$(findmnt -nro FSROOT | uniq | wc -l)" = 1; then
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df --out=source,target '.' > out || fail=1
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compare exp out || fail=1
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fi
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fi
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test "$fail" = 1 && dump_mount_list_
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Exit $fail
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