Hi,

Tar file compression autodetect does not work with very small files.
See below:

[EMAIL PROTECTED] root]$ echo foo > foo
[EMAIL PROTECTED] root]$ tar cjf foo.tar.bz2 foo
[EMAIL PROTECTED] root]$ tar xf foo.tar.bz2 
tar: short read
[EMAIL PROTECTED] root]$ echo $?
1
[EMAIL PROTECTED] root]$ tar xjf foo.tar.bz2 
[EMAIL PROTECTED] root]$ echo $?
0
[EMAIL PROTECTED] root]$ ls -la foo.tar.bz2 
-rw-r--r--    1 root     root          111 Jul  9 18:16 foo.tar.bz2

With large files it works fine. I'm using BusyBox 1.11.0.
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