1#!/bin/sh 2# Exercise shred --remove 3 4# Copyright (C) 1999-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ shred 21skip_if_root_ 22 23# The length of the basename is what matters. 24# In this case, shred-4.0l would try to rename the file 256^10 times 25# before terminating. 26file=0123456789 27touch $file || framework_failure_ 28chmod u-w $file || framework_failure_ 29 30# This would take so long that it appears to infloop 31# when using version from fileutils-4.0k. 32# When the command completes, expect it to fail. 33returns_ 1 shred -u $file > /dev/null 2>&1 || fail=1 34rm -f $file || framework_failure_ 35 36# Ensure all --remove methods at least unlink the file 37for mode in '' '=unlink' '=wipe' '=wipesync'; do 38 touch $file || framework_failure_ 39 shred -n0 --remove"$mode" $file || fail=1 40 test -e $file && fail=1 41done 42 43# Ensure incorrect params are diagnosed 44touch $file || framework_failure_ 45returns_ 1 shred -n0 --remove=none $file 2>/dev/null || fail=1 46 47# Ensure rename passes complete. 48# coreutils-8.28 did not do the decreasing length rename 49# which may have leaked the length of the removed file name 50 # test level exhaustion 51touch \ 52 0 1 2 3 4 5 6 7 8 9 \ 53 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 \ 54 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_ 55touch test 000 || framework_failure_ # test level increment 56shred -vu test 2>out || fail=1 57cat <<\EOF >exp || framework_failure_ 58shred: test: removing 59shred: test: renamed to 0000 60shred: 0000: renamed to 001 61shred: 001: renamed to 00 62shred: test: removed 63EOF 64compare exp out || fail=1 65 66# Ensure renames are only retried for EEXIST 67mkdir rodir && cd rodir && touch $file && chmod a-w . || framework_failure_ 68returns_ 1 timeout 10 shred -u $file || fail=1 69 70Exit $fail 71