70 lines
2.4 KiB
Bash
Executable file
70 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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# Exercise shred --remove
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# Copyright (C) 1999-2025 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_ shred
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skip_if_root_
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# The length of the basename is what matters.
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# In this case, shred-4.0l would try to rename the file 256^10 times
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# before terminating.
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file=0123456789
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touch $file || framework_failure_
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chmod u-w $file || framework_failure_
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# This would take so long that it appears to infloop
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# when using version from fileutils-4.0k.
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# When the command completes, expect it to fail.
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returns_ 1 shred -u $file > /dev/null 2>&1 || fail=1
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rm -f $file || framework_failure_
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# Ensure all --remove methods at least unlink the file
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for mode in '' '=unlink' '=wipe' '=wipesync'; do
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touch $file || framework_failure_
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shred -n0 --remove"$mode" $file || fail=1
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test -e $file && fail=1
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done
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# Ensure incorrect params are diagnosed
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touch $file || framework_failure_
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returns_ 1 shred -n0 --remove=none $file 2>/dev/null || fail=1
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# Ensure rename passes complete.
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# coreutils-8.28 did not do the decreasing length rename
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# which may have leaked the length of the removed file name
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# test level exhaustion
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touch \
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0 1 2 3 4 5 6 7 8 9 \
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a b c d e f g h i j k l m n o p q r s t u v w x y z \
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ || framework_failure_
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touch test 000 || framework_failure_ # test level increment
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shred -vu test 2>out || fail=1
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cat <<\EOF >exp || framework_failure_
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shred: test: removing
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shred: test: renamed to 0000
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shred: 0000: renamed to 001
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shred: 001: renamed to 00
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shred: test: removed
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EOF
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compare exp out || fail=1
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# Ensure renames are only retried for EEXIST
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mkdir rodir && cd rodir && touch $file && chmod a-w . || framework_failure_
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returns_ 1 timeout 10 shred -u $file || fail=1
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Exit $fail
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