[bug] cygwin-1.5.6-1: corruption on tar | bzip2 > file.tar.bz2 RESOLVED

Mon Jan 26 11:23:00 GMT 2004

Christopher Faylor wrote on 25.01.2004 18:05:
> If I were you, I would be comparing the difference between the working
> and non-working cases, like is the file size different? 

Thank you very much for a good question, it really helps to resolve my 
issue. The problem seems to be in <LF> -> <CR><LF> (0A -> 0D 0A) 
convertion in pipe after bzip2, which occurs _only if_ option "Default 
Text File Type" = Dos. I didn't test any other utilities except cat, 
when it doesn't happend (=everything fine).
Here is illustration.
Non-working (fresh install, current version, almost minimal, 
cygwin-1.5.6-1).
With option "Default Text File Type" = Dos
$ bzip2 -kv gawk.info
 gawk.info: 4.508:1, 1.774 bits/byte, 77.82% saved, 980691 in, 
217521 out.
$ bzip2 -tv gawk.info.bz2
 gawk.info.bz2: ok
$ mv gawk.info.bz2 gawk.info.bz2-correct
$ cat gawk.info | bzip2 -v > gawk.info.bz2
 (stdin): 4.508:1, 1.774 bits/byte, 77.82% saved, 980691 in, 217521 out.
$ bzip2 -tv gawk.info.bz2
 gawk.info.bz2: data integrity (CRC) error in data
You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.
$ mv gawk.info.bz2 gawk.info.bz2-broken
$ ls -1s --block=1 gawk.info.bz2*
219136 gawk.info.bz2-broken
218112 gawk.info.bz2-correct
After comparison of gawk.info.bz2-correct and gawk.info.bz2-broken I 
found, that all 0A entries in correct file changed to 0D 0A are corrupted.
Same installation with option "Default Text File Type" = Unix
$ bzip2 -kv gawk.info
 gawk.info: 4.508:1, 1.774 bits/byte, 77.82% saved, 980691 in, 
217521 out.
$ bzip2 -tv gawk.info.bz2
 gawk.info.bz2: ok
$ mv gawk.info.bz2 gawk.info.bz2-correct
$ cat gawk.info | bzip2 -v > gawk.info.bz2
 (stdin): 4.508:1, 1.774 bits/byte, 77.82% saved, 980691 in, 217521 out.
$ bzip2 -tv gawk.info.bz2
 gawk.info.bz2: ok
$ mv gawk.info.bz2 gawk.info.bz2-piped
$ ls -1s --block=1 gawk.info.bz2*
218112 gawk.info.bz2-correct
218112 gawk.info.bz2-piped
$ diff gawk.info.bz2-correct gawk.info.bz2-piped
$
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