[Bug-tar] star <-> GNU tar interchange issue

[Mark]

Hi,

I noticed a strange problem when using GNU tar to unpack an archive which
I had created using star. I'm not sure whether this is a bug with star or
GNU tar. The problem seems to be related to a file and/or directory name
having an o-umlaut character (ö).

I used this command to create the archive:
star -c f=test_star.tar artype=xustar -numeric -sparse -force-hole
"Sven-Göran Eriksson's World Challenge SLES-50852"

Using star to list or unpack the archive works fine:
# star -t f=test_star.tar
Sven-Göran Eriksson's World Challenge SLES-50852/
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78_hashes.txt
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.toc
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78_TOC.bin
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin.sfv
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin.md5
star: 1 blocks + 0 bytes (total of 10240 bytes = 10.00k).

However if I use GNU tar to list the archive:
# tar -tf test_star.tar
Sven-Göran Eriksson's World Challenge SLES-50852/
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78_hashes.txt
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.toc
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78_TOC.bin
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin.sfv
Sven-Göran Eriksson's World Challenge
SLES-50852/Sven-Göran_Eriksson's_World_Challenge_SLES-50852_A0100414717-0101___78.bin.md5

Notice that the ö character is replaced by ö in the line for the
...78.bin file. If I use GNU tar to unpack the archive, two directories
are created, corresponding to the correct and bogus directory names in the
GNU tar listing.

I looked at a hex dump of the test_star.tar archive. For all files except
the ...78.bin file, the o-umlaut character is represented by two bytes:
0xC3 0xB6. For the ...78.bin file the o-umlauts are represented by C3 83
C2 B6 (see offsets 0x0C69 and 0x0C9D in the file).

The archive is attached (1008 bytes compressed) if anyone feels like
investigating this issue.

test_star.tar.gz
Description: GNU Zip compressed data