Working draft

N45 gnu-long-name-field-slash

A file with a GNU long name and typeflag NUL, whose name field ends in a slash.

Accept(draft) Every implementation must accept this archive, and extract the expected tree below.

Category
name
Default policy
accepts it, as it allows the typeflag NUL of regular files, from before POSIX
Files
N45-gnu-long-name-field-slash.tar test archive, 3,072 bytes sha256 793673581c5d32fcce1be22e444f6e5d77803adbcdb7df632911fdc575c4f8ca
N45-gnu-long-name-field-slash.jsonexpected result
N45-gnu-long-name-field-slash.txtannotated blocks
N45-gnu-long-name-field-slash.pygenerator script

The case

The archive has a GNU long name header whose data is 99 ps, followed by a slash, followed by file.py, followed by a NUL. After it is a regular file, of typeflag NUL, with GNU's magic. Its name field contains the first 100 bytes of the long name: the 99 ps, followed by the slash.

The long name replaces the name field, so the member is a regular file, file.py under the directory of 99 ps, which does not have a member of its own. The long name header is GNU tar's own format for long names. A name that ends in a slash was the old way to archive a directory. A reader that decides the kind by the name field, before the long name is applied, extracts a directory instead. A reader that does not apply the long name extracts a file of 99 ps, by the name field without its slash.

The expected tree:

pathkindcontents
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/directory
ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/file.pyfile8 bytes, sha256 d8594fa1

Seen in: sdists of Python packages that maturin wrote.

The archive

Every block of 512 bytes, to scale, with its offset. Hover over a field for its bytes.

N45-gnu-long-name-field-slash: every block of the archive0x000000header: GNU long namename [0,100): "././@LongLink" + 87 NULnamemode [100,108): "0000644" + NUL, 644 (octal)uid [108,116): "0000000" + NUL, 0gid [116,124): "0000000" + NUL, 0size [124,136): "00000000154" + NUL, 108mtime [136,148): "00000000000" + NUL, 0chksum [148,156): "011233\0 ", 4763: the unsigned sum of the header, this field as spacestypeflag [156,157): "L", GNU long namelinkname [157,257): 100 NULlinknamemagic [257,263): "ustar "version [263,265): " " + NULuname [265,297): 32 NULunamegname [297,329): 32 NULgnamedevmajor [329,337): "0000000" + NUL, 0devminor [337,345): "0000000" + NUL, 0prefix [345,500): 155 NULprefixpad [500,512): 12 NULname "././@LongLink" + 87 NULmagic "ustar "version " " + NUL0x000200data: GNU long name108 bytes: the name and a NUL, then 404 NUL; "ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/file.py" + NUL"ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/file.py" + NUL0x000400header: regular file (pre-POSIX), typeflag NUL, a name field that ends in a slashname [0,100): "ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/"namemode [100,108): "0000644" + NUL, 644 (octal)uid [108,116): "0000000" + NUL, 0gid [116,124): "0000000" + NUL, 0size [124,136): "00000000010" + NUL, 8mtime [136,148): "00000000000" + NUL, 0chksum [148,156): "034655\0 ", 14765: the unsigned sum of the header, this field as spacestypeflag [156,157): 1 NUL, regular file (pre-POSIX)linkname [157,257): 100 NULlinknamemagic [257,263): "ustar "version [263,265): " " + NULuname [265,297): 32 NULunamegname [297,329): 32 NULgnamedevmajor [329,337): "0000000" + NUL, 0devminor [337,345): "0000000" + NUL, 0prefix [345,500): 155 NULprefixpad [500,512): 12 NULname "ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/"magic "ustar "version " " + NUL0x000600data8 bytes, then 504 NUL to the end of the block; "print()\n""print()\n"0x0008002 zero blocks: the end-of-archive markerbytes 0 to 512 of 1024: 512 NUL0x000a002 zero blocks, continuedbytes 512 to 1024 of 1024: 512 NUL0x000c00end of fileNULprintable ASCIIspacecontrol character, such as a newlinebyte over 0x7fwritten by the case itself
Every block, as text 
N45-gnu-long-name-field-slash: must accept, and extract its tree

A file with a GNU long name and typeflag NUL, whose name field ends in a slash.

The archive has a GNU long name header whose data is 99 `p`s, followed by a slash, followed by
`file.py`, followed by a NUL. After it is a regular file, of typeflag NUL, with GNU's magic. Its
name field contains the first 100 bytes of the long name: the 99 `p`s, followed by the slash.

The long name replaces the name field, so the member is a regular file, `file.py` under the
directory of 99 `p`s, which does not have a member of its own. The long name header is GNU tar's own
format for long names. A name that ends in a slash was the old way to archive a
directory. A reader that decides the kind by the name field, before the long name is applied,
extracts a directory instead. A reader that does not apply the long name extracts a file of 99 `p`s,
by the name field without its slash.

Seen in: sdists of Python packages that maturin wrote.
See also: K01, a regular file whose name ends in a slash.

0x000000  header: GNU long name
          name     [  0,100)  "././@LongLink" + 87 NUL
          mode     [100,108)  "0000644" + NUL  644 (octal)
          uid      [108,116)  "0000000" + NUL  0
          gid      [116,124)  "0000000" + NUL  0
          size     [124,136)  "00000000154" + NUL  108
          mtime    [136,148)  "00000000000" + NUL  0
          chksum   [148,156)  "011233\0 "  4763: the unsigned sum of the header, this field as spaces
          typeflag [156,157)  "L"  GNU long name
          linkname [157,257)  100 NUL
          magic    [257,263)  "ustar "
          version  [263,265)  " " + NUL
          uname    [265,297)  32 NUL
          gname    [297,329)  32 NUL
          devmajor [329,337)  "0000000" + NUL  0
          devminor [337,345)  "0000000" + NUL  0
          prefix   [345,500)  155 NUL
          pad      [500,512)  12 NUL
0x000200  data: GNU long name
          108 bytes: the name and a NUL, then 404 NUL
          "ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/file.py" + NUL
0x000400  header: regular file (pre-POSIX), typeflag NUL, a name field that ends in a slash
          name     [  0,100)  "ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp/"
          mode     [100,108)  "0000644" + NUL  644 (octal)
          uid      [108,116)  "0000000" + NUL  0
          gid      [116,124)  "0000000" + NUL  0
          size     [124,136)  "00000000010" + NUL  8
          mtime    [136,148)  "00000000000" + NUL  0
          chksum   [148,156)  "034655\0 "  14765: the unsigned sum of the header, this field as spaces
          typeflag [156,157)  1 NUL  regular file (pre-POSIX)
          linkname [157,257)  100 NUL
          magic    [257,263)  "ustar "
          version  [263,265)  " " + NUL
          uname    [265,297)  32 NUL
          gname    [297,329)  32 NUL
          devmajor [329,337)  "0000000" + NUL  0
          devminor [337,345)  "0000000" + NUL  0
          prefix   [345,500)  155 NUL
          pad      [500,512)  12 NUL
0x000600  data
          8 bytes, then 504 NUL to the end of the block
          "print()\n"
0x000800  2 zero blocks: the end-of-archive marker
0x000c00  end of file
Every byte, as a hex dump

As xxd writes it: xxd -r makes the archive of it.

00000000: 2e2f 2e2f 404c 6f6e 674c 696e 6b00 0000  ././@LongLink...
00000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000060: 0000 0000 3030 3030 3634 3400 3030 3030  ....0000644.0000
00000070: 3030 3000 3030 3030 3030 3000 3030 3030  000.0000000.0000
00000080: 3030 3030 3135 3400 3030 3030 3030 3030  0000154.00000000
00000090: 3030 3000 3031 3132 3333 0020 4c00 0000  000.011233. L...
000000a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000100: 0075 7374 6172 2020 0000 0000 0000 0000  .ustar  ........
00000110: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000120: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000130: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000140: 0000 0000 0000 0000 0030 3030 3030 3030  .........0000000
00000150: 0030 3030 3030 3030 0000 0000 0000 0000  .0000000........
00000160: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000170: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000180: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000190: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000200: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000210: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000220: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000230: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000240: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000250: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000260: 7070 702f 6669 6c65 2e70 7900 0000 0000  ppp/file.py.....
00000270: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000280: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000290: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000002f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000300: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000310: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000320: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000330: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000340: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000350: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000360: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000370: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000380: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000390: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000003f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000400: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000410: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000420: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000430: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000440: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000450: 7070 7070 7070 7070 7070 7070 7070 7070  pppppppppppppppp
00000460: 7070 702f 3030 3030 3634 3400 3030 3030  ppp/0000644.0000
00000470: 3030 3000 3030 3030 3030 3000 3030 3030  000.0000000.0000
00000480: 3030 3030 3031 3000 3030 3030 3030 3030  0000010.00000000
00000490: 3030 3000 3033 3436 3535 0020 0000 0000  000.034655. ....
000004a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000004b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000004c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000004d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000004e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000004f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000500: 0075 7374 6172 2020 0000 0000 0000 0000  .ustar  ........
00000510: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000520: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000530: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000540: 0000 0000 0000 0000 0030 3030 3030 3030  .........0000000
00000550: 0030 3030 3030 3030 0000 0000 0000 0000  .0000000........
00000560: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000570: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000580: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000590: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000005f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000600: 7072 696e 7428 290a 0000 0000 0000 0000  print().........
00000610: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000620: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000630: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000640: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000650: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000660: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000670: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000680: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000690: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000006f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000700: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000710: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000720: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000730: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000740: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000750: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000760: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000770: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000780: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000790: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000007f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000800: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000810: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000820: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000830: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000840: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000850: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000860: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000870: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000880: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000890: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000008f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000900: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000910: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000920: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000930: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000940: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000950: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000960: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000970: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000980: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000990: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000009f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a00: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a10: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a20: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a30: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a40: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a50: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a60: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a70: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a80: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000a90: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000aa0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000ab0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000ac0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000ad0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000ae0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000af0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b00: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b10: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b20: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b30: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b40: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b50: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b60: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b70: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b80: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000b90: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000ba0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000bb0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000bc0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000bd0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000be0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000bf0: 0000 0000 0000 0000 0000 0000 0000 0000  ................

What implementations make of it

In the outcome column, ✅ means that the implementation follows the default policy.

implementationversionoutcomewhat it makes of it
GNU tartar (GNU tar) 1.35✅ acceptsthe expected tree
bsdtarbsdtar 3.8.11 - libarchive 3.8.11✅ acceptsthe expected tree
BusyBox tarBusyBox v1.38.0, defconfig✅ acceptsthe expected tree
7-Zip7-Zip (z) 26.05 (x64)✅ acceptsthe expected tree
Python tarfile, filter=data, as in pipCPython 3.15.2✅ acceptsthe expected tree
Python tarfile, filter=tarCPython 3.15.2✅ acceptsthe expected tree
Python tarfile, filter=fully_trustedCPython 3.15.2✅ acceptsthe expected tree
node-tartar 7.5.22✅ acceptsthe expected tree
node-tar, stricttar 7.5.22✅ acceptsthe expected tree
tar-fstar-fs 3.1.3, on tar-stream 3.2.2✅ acceptsthe expected tree
Java Commons CompressCommons Compress 1.28.0, Expander, on Java 27.0.1.0.2✅ acceptsthe expected tree
.NET System.Formats.TarSystem.Formats.Tar of .NET 10.0.14, ExtractToDirectory✅ acceptsthe expected tree
PHP PharData, as in ComposerPharData of PHP 8.5.12, as Composer's TarDownloader calls it✅ acceptsthe expected tree
Go containerd archive.Applycontainerd v2.4.2, archive.Apply, of go1.27.3✅ acceptsthe expected tree
Rust tartar 0.4.46, unpack✅ acceptsthe expected tree
Rust astral-tokio-tarastral-tokio-tar 0.7.1, unpack✅ acceptsthe expected tree
Rust tar-codec, as in uvtar-codec 0.0.16, with the policies of uv 0.13✅ acceptsthe expected tree
RubyGemsRubyGems 4.0.20 of Ruby 4.0.9, extract_tar_gz❌ another tree, or rejectstree A: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp (8 B, d8594fa1)
R untar, internalutils::untar of R 4.6.2, tar = "internal"❌ another tree, or rejectserror: unsupported entry type ‘’
Perl Archive::TarArchive::Tar 3.12 of Perl v5.44.0✅ acceptsthe expected tree
Haskell tartar 0.7.2.0, extract, of GHC 9.14✅ acceptsthe expected tree
Julia Tar.jlTar 1.10.0 of Julia 1.13.3✅ acceptsthe expected tree
live-bootstrap untarmescc-tools-extra a151c245e512, as live-bootstrap pins it❌ another tree, or rejectserror: unable to create long symlink
live-bootstrap untar, --non-strictmescc-tools-extra a151c245e512, as live-bootstrap pins it❌ another tree, or rejectserror: non-strict mode enabled, preparing for chaos unable to create long symlink

Prevalence in release tarballs

The table below shows how many release tarballs have the features of this test case. The default policy accepts them.

ecosystemtarballswith itshare
Spack37,5532,2976.12%
nixpkgs18,9907744.08%
Guix10,1688788.63%
PyPI10,000750.75%
crates.io5,0000none
RubyGems5,0000none
live-bootstrap1716135.67%
total (distinct)82,5863,6164.38%

See a sample of these 3,616 tarballs, with the sha256 of each and an example from it.

See also