[Bug-tar] tar 1.20 won't extract from .tlz or .tar.lzma files

[Tristan Miller]

Greetings.

GNU tar 1.20 seems to have no trouble creating lzma-compressed files when 
specifying the -a option and a filename ending in .tlz or .tar.lzma.  
However, it doesn't recognize these extensions when extracting (with or 
without the -a option).  However, extensions for gzip and bzip2 work as 
expected:

address@hidden:/tmp]$ tar caf foo.tgz foo.txt
address@hidden:/tmp]$ tar caf foo.tbz2 foo.txt
address@hidden:/tmp]$ tar caf foo.tlz foo.txt
address@hidden:/tmp]$ tar xf foo.tgz
address@hidden:/tmp]$ tar xf foo.tbz2
address@hidden:/tmp]$ tar xf foo.tlz
tar: This does not look like a tar archive
tar: Error exit delayed from previous errors
address@hidden:/tmp]$
address@hidden:/tmp]$ tar caf foo.tar.gz foo.txt
address@hidden:/tmp]$ tar caf foo.tar.bz2 foo.txt
address@hidden:/tmp]$ tar caf foo.tar.lzma foo.txt
address@hidden:/tmp]$ tar xf foo.tar.gz
address@hidden:/tmp]$ tar xf foo.tar.bz2
address@hidden:/tmp]$ tar xf foo.tar.lzma
tar: This does not look like a tar archive
tar: Error exit delayed from previous errors
address@hidden:/tmp]$

I assume this is a bug...?

Regards,
Tristan

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