[2725] | 1 | #!/bin/sh
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| 2 | # Copyright 2009 by Denys Vlasenko
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| 3 | # Licensed under GPLv2, see file LICENSE in this source tree.
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| 4 |
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| 5 | . ./testing.sh
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| 6 |
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| 7 | unset LANG
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| 8 | unset LANGUAGE
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| 9 | unset LC_COLLATE
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| 10 | unset LC_ALL
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| 11 | umask 022
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| 12 |
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| 13 | rm -rf tar.tempdir 2>/dev/null
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| 14 | mkdir tar.tempdir && cd tar.tempdir || exit 1
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| 15 |
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| 16 | # testing "test name" "script" "expected result" "file input" "stdin"
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| 17 |
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[3621] | 18 | testing "Empty file is not a tarball" '\
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| 19 | tar xvf - 2>&1; echo $?
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| 20 | ' "\
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| 21 | tar: short read
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| 22 | 1
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| 23 | " \
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| 24 | "" ""
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| 25 | SKIP=
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| 26 |
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| 27 | optional FEATURE_SEAMLESS_GZ GUNZIP
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| 28 | # In NOMMU case, "invalid magic" message comes from gunzip child process.
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| 29 | # Otherwise, it comes from tar.
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| 30 | # Need to fix output up to avoid false positive.
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| 31 | testing "Empty file is not a tarball.tar.gz" '\
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| 32 | { tar xvzf - 2>&1; echo $?; } | grep -Fv "invalid magic"
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| 33 | ' "\
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| 34 | tar: short read
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| 35 | 1
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| 36 | " \
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| 37 | "" ""
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| 38 | SKIP=
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| 39 |
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| 40 | testing "Two zeroed blocks is a ('truncated') empty tarball" '\
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| 41 | dd if=/dev/zero bs=512 count=2 2>/dev/null | tar xvf - 2>&1; echo $?
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| 42 | ' "\
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| 43 | 0
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| 44 | " \
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| 45 | "" ""
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| 46 | SKIP=
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| 47 |
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| 48 | testing "Twenty zeroed blocks is an empty tarball" '\
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| 49 | dd if=/dev/zero bs=512 count=20 2>/dev/null | tar xvf - 2>&1; echo $?
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| 50 | ' "\
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| 51 | 0
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| 52 | " \
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| 53 | "" ""
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| 54 | SKIP=
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| 55 |
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| 56 | # "tar cf test.tar input input_dir/ input_hard1 input_hard2 input_hard1 input_dir/ input":
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| 57 | # GNU tar 1.26 records as hardlinks:
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| 58 | # input_hard2 -> input_hard1
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| 59 | # input_hard1 -> input_hard1 (!!!)
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| 60 | # input_dir/file -> input_dir/file
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| 61 | # input -> input
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| 62 | # As of 1.24.0, we don't record last two: for them, nlink==1
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| 63 | # and we check for "hardlink"ness only files with nlink!=1
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| 64 | # We also don't use "hrw-r--r--" notation for hardlinks in "tar tv" listing.
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[2725] | 65 | optional FEATURE_TAR_CREATE FEATURE_LS_SORTFILES
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| 66 | testing "tar hardlinks and repeated files" '\
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| 67 | rm -rf input_* test.tar 2>/dev/null
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| 68 | >input_hard1
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| 69 | ln input_hard1 input_hard2
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| 70 | mkdir input_dir
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| 71 | >input_dir/file
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| 72 | chmod -R 644 *
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| 73 | chmod 755 input_dir
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| 74 | tar cf test.tar input input_dir/ input_hard1 input_hard2 input_hard1 input_dir/ input
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| 75 | tar tvf test.tar | sed "s/.*[0-9] input/input/"
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[3621] | 76 | rm -rf input_dir
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[2725] | 77 | tar xf test.tar 2>&1
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| 78 | echo Ok: $?
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| 79 | ls -l . input_dir/* | grep input_ | sed "s/\\(^[^ ]*\\) .* input/\\1 input/"
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| 80 | ' "\
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| 81 | input
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| 82 | input_dir/
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| 83 | input_dir/file
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| 84 | input_hard1
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| 85 | input_hard2 -> input_hard1
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| 86 | input_hard1 -> input_hard1
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| 87 | input_dir/
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| 88 | input_dir/file
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| 89 | input
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| 90 | Ok: 0
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| 91 | -rw-r--r-- input_dir/file
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| 92 | drwxr-xr-x input_dir
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| 93 | -rw-r--r-- input_hard1
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| 94 | -rw-r--r-- input_hard2
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| 95 | " \
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| 96 | "" ""
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| 97 | SKIP=
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| 98 |
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| 99 | optional FEATURE_TAR_CREATE FEATURE_LS_SORTFILES
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| 100 | testing "tar hardlinks mode" '\
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| 101 | rm -rf input_* test.tar 2>/dev/null
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| 102 | >input_hard1
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| 103 | chmod 741 input_hard1
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| 104 | ln input_hard1 input_hard2
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| 105 | mkdir input_dir
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| 106 | ln input_hard1 input_dir
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| 107 | ln input_hard2 input_dir
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| 108 | chmod 550 input_dir
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| 109 | # On some filesystems, input_dir/input_hard2 is returned by readdir
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| 110 | # BEFORE input_dir/input_hard1! Thats why we cant just "tar cf ... input_*":
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| 111 | tar cf test.tar input_dir/input_hard* input_hard*
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| 112 | tar tvf test.tar | sed "s/.*[0-9] input/input/"
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| 113 | chmod 770 input_dir
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| 114 | rm -rf input_*
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| 115 | tar xf test.tar 2>&1
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| 116 | echo Ok: $?
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| 117 | ls -l . input_dir/* | grep "input.*hard" | sed "s/\\(^[^ ]*\\) .* input/\\1 input/"
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| 118 | ' "\
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| 119 | input_dir/input_hard1
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| 120 | input_dir/input_hard2 -> input_dir/input_hard1
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| 121 | input_hard1 -> input_dir/input_hard1
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| 122 | input_hard2 -> input_dir/input_hard1
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| 123 | Ok: 0
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| 124 | -rwxr----x input_dir/input_hard1
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| 125 | -rwxr----x input_dir/input_hard2
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| 126 | -rwxr----x input_hard1
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| 127 | -rwxr----x input_hard2
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| 128 | " \
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| 129 | "" ""
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| 130 | SKIP=
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| 131 |
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| 132 | optional FEATURE_TAR_CREATE FEATURE_LS_SORTFILES
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| 133 | testing "tar symlinks mode" '\
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| 134 | rm -rf input_* test.tar 2>/dev/null
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| 135 | >input_file
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| 136 | chmod 741 input_file
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| 137 | ln -s input_file input_soft
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| 138 | mkdir input_dir
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| 139 | ln input_file input_dir
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| 140 | ln input_soft input_dir
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| 141 | chmod 550 input_dir
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| 142 | tar cf test.tar input_dir/* input_[fs]*
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| 143 | tar tvf test.tar | sed "s/.*[0-9] input/input/" | sort
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| 144 | chmod 770 input_dir
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| 145 | rm -rf input_*
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| 146 | tar xf test.tar 2>&1
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| 147 | echo Ok: $?
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| 148 | ls -l . input_dir/* | grep "input_[fs]" | sed "s/\\(^[^ ]*\\) .* input/\\1 input/"
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| 149 | ' "\
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| 150 | input_dir/input_file
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| 151 | input_dir/input_soft -> input_file
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| 152 | input_file -> input_dir/input_file
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| 153 | input_soft -> input_dir/input_soft
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| 154 | Ok: 0
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| 155 | -rwxr----x input_dir/input_file
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| 156 | lrwxrwxrwx input_file
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| 157 | -rwxr----x input_file
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| 158 | lrwxrwxrwx input_file
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| 159 | " \
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| 160 | "" ""
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| 161 | SKIP=
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| 162 |
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| 163 | optional FEATURE_TAR_CREATE FEATURE_TAR_LONG_OPTIONS
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| 164 | testing "tar --overwrite" "\
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| 165 | rm -rf input_* test.tar 2>/dev/null
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| 166 | ln input input_hard
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| 167 | tar cf test.tar input_hard
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| 168 | echo WRONG >input
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| 169 | # --overwrite opens 'input_hard' without unlinking,
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| 170 | # thus 'input_hard' still linked to 'input' and we write 'Ok' into it
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| 171 | tar xf test.tar --overwrite 2>&1 && cat input
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| 172 | " "\
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| 173 | Ok
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| 174 | " \
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| 175 | "Ok\n" ""
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| 176 | SKIP=
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| 177 |
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| 178 | test x"$SKIP_KNOWN_BUGS" = x"" && {
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| 179 | # Needs to be run under non-root for meaningful test
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| 180 | optional FEATURE_TAR_CREATE
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| 181 | testing "tar writing into read-only dir" '\
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| 182 | rm -rf input_* test.tar 2>/dev/null
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| 183 | mkdir input_dir
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| 184 | >input_dir/input_file
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| 185 | chmod 550 input_dir
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| 186 | tar cf test.tar input_dir
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| 187 | tar tvf test.tar | sed "s/.*[0-9] input/input/"
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| 188 | chmod 770 input_dir
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| 189 | rm -rf input_*
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| 190 | tar xf test.tar 2>&1
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| 191 | echo Ok: $?
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| 192 | ls -l input_dir/* . | grep input_ | sed "s/\\(^[^ ]*\\) .* input/\\1 input/"
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| 193 | chmod 770 input_dir
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| 194 | ' "\
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| 195 | input_dir/
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| 196 | input_dir/input_file
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| 197 | Ok: 0
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| 198 | -rw-r--r-- input_dir/input_file
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| 199 | dr-xr-x--- input_dir
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| 200 | " \
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| 201 | "" ""
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| 202 | SKIP=
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| 203 | }
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| 204 |
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[3232] | 205 | # Had a bug where on extract autodetect first "switched off" -z
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| 206 | # and then failed to recognize .tgz extension
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[3621] | 207 | optional FEATURE_TAR_CREATE FEATURE_SEAMLESS_GZ GUNZIP
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[3232] | 208 | testing "tar extract tgz" "\
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| 209 | dd count=1 bs=1M if=/dev/zero of=F0 2>/dev/null
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| 210 | tar -czf F0.tgz F0
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| 211 | rm F0
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| 212 | tar -xzvf F0.tgz && echo Ok
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| 213 | rm F0 || echo BAD
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| 214 | " "\
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| 215 | F0
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| 216 | Ok
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| 217 | " \
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| 218 | "" ""
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| 219 | SKIP=
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[2725] | 220 |
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[3232] | 221 | # Do we detect XZ-compressed data (even w/o .tar.xz or txz extension)?
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| 222 | # (the uuencoded hello_world.txz contains one empty file named "hello_world")
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| 223 | optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_XZ
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| 224 | testing "tar extract txz" "\
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| 225 | uudecode -o input && tar tf input && echo Ok
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| 226 | " "\
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| 227 | hello_world
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| 228 | Ok
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| 229 | " \
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| 230 | "" "\
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| 231 | begin-base64 644 hello_world.txz
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| 232 | /Td6WFoAAATm1rRGAgAhARYAAAB0L+Wj4AX/AEldADQZSe6ODIZQ3rSQ8kAJ
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| 233 | SnMPTX+XWGKW3Yu/Rwqg4Ik5wqgQKgVH97J8yA8IvZ4ahaCQogUNHRkXibr2
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| 234 | Q615wcb2G7fJU49AhWAAAAAAUA8gu9DyXfAAAWWADAAAAB5FXGCxxGf7AgAA
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| 235 | AAAEWVo=
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| 236 | ====
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| 237 | "
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| 238 | SKIP=
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| 239 |
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| 240 | # On extract, everything up to and including last ".." component is stripped
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| 241 | optional FEATURE_TAR_CREATE
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| 242 | testing "tar strips /../ on extract" "\
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| 243 | rm -rf input_* test.tar 2>/dev/null
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| 244 | mkdir input_dir
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| 245 | echo Ok >input_dir/file
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| 246 | tar cf test.tar ./../tar.tempdir/input_dir/../input_dir 2>&1
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| 247 | rm -rf input_* 2>/dev/null
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| 248 | tar -vxf test.tar 2>&1
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| 249 | cat input_dir/file 2>&1
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| 250 | " "\
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| 251 | tar: removing leading './../tar.tempdir/input_dir/../' from member names
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| 252 | input_dir/
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| 253 | input_dir/file
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| 254 | Ok
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| 255 | " \
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| 256 | "" ""
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| 257 | SKIP=
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| 258 |
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[3621] | 259 | # attack.tar.bz2 has symlink pointing to a system file
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| 260 | # followed by a regular file with the same name
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| 261 | # containing "root::0:0::/root:/bin/sh":
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| 262 | # lrwxrwxrwx root/root passwd -> /tmp/passwd
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| 263 | # -rw-r--r-- root/root passwd
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| 264 | # naive tar implementation may end up creating the symlink
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| 265 | # and then writing into it.
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| 266 | # The correct implementation unlinks target before
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| 267 | # creating the second file.
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| 268 | # We test that /tmp/passwd remains empty:
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| 269 | optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_BZ2
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| 270 | testing "tar does not extract into symlinks" "\
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| 271 | >>/tmp/passwd && uudecode -o input && tar xf input 2>&1 && rm passwd; cat /tmp/passwd; echo \$?
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| 272 | " "\
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| 273 | 0
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| 274 | " \
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| 275 | "" "\
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| 276 | begin-base64 644 attack.tar.bz2
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| 277 | QlpoOTFBWSZTWRVn/bIAAKt7hMqwAEBAAP2QAhB0Y96AAACACCAAlISgpqe0
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| 278 | po0DIaDynqAkpDRP1ANAhiYNSPR8VchKhAz0AK59+DA6FcMKBggOARIJdVHL
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| 279 | DGllrjs20ATUgR1HmccBX3EhoMnpMJaNyggmxgLDMz54lBnBTJO/1L1lbMS4
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| 280 | l4/V8LDoe90yiWJhOJvIypgEfxdyRThQkBVn/bI=
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| 281 | ====
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| 282 | "
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| 283 | SKIP=
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| 284 | # And same with -k
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| 285 | optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_BZ2
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| 286 | testing "tar -k does not extract into symlinks" "\
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| 287 | >>/tmp/passwd && uudecode -o input && tar xf input -k 2>&1 && rm passwd; cat /tmp/passwd; echo \$?
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| 288 | " "\
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| 289 | tar: can't open 'passwd': File exists
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| 290 | 0
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| 291 | " \
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| 292 | "" "\
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| 293 | begin-base64 644 attack.tar.bz2
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| 294 | QlpoOTFBWSZTWRVn/bIAAKt7hMqwAEBAAP2QAhB0Y96AAACACCAAlISgpqe0
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| 295 | po0DIaDynqAkpDRP1ANAhiYNSPR8VchKhAz0AK59+DA6FcMKBggOARIJdVHL
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| 296 | DGllrjs20ATUgR1HmccBX3EhoMnpMJaNyggmxgLDMz54lBnBTJO/1L1lbMS4
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| 297 | l4/V8LDoe90yiWJhOJvIypgEfxdyRThQkBVn/bI=
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| 298 | ====
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| 299 | "
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| 300 | SKIP=
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[3232] | 301 |
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[3621] | 302 |
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[2725] | 303 | cd .. && rm -rf tar.tempdir || exit 1
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| 304 |
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| 305 | exit $FAILCOUNT
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