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Re: [Bug-tar] new/old extract problems with 6GB sparse file
From: |
Sergey Poznyakoff |
Subject: |
Re: [Bug-tar] new/old extract problems with 6GB sparse file |
Date: |
Mon, 19 Jun 2006 10:22:37 +0300 |
> $ tar -xvjf jake.tar.bz2 --totals
> jake.ntfs
> Total bytes read: 3155937280 (3.0GiB, 3.2MiB/s)
>
> This results in an extracted file of length 1997337088 bytes (~1.9GB),
> which looks very suspicious like a 4GB overflow!?
Yes, indeed. Can you please send me config.log file (created after you
run configure in GNU tar source directory).
> $ tar -xvjf jake.tar.bz2 -O --totals | cat >jake.ntfs
> jake.ntfs
> tar: jake.ntfs: Cannot seek to 61198336: Invalid argument
Please, try the attached patch. It disables seek autodetection on the
output file descriptor if -O is used.
Regards,
Sergey
Index: src/sparse.c
===================================================================
RCS file: /cvsroot/tar/tar/src/sparse.c,v
retrieving revision 1.21
diff -p -u -r1.21 sparse.c
--- src/sparse.c 10 Nov 2005 12:59:13 -0000 1.21
+++ src/sparse.c 19 Jun 2006 07:17:31 -0000
@@ -452,7 +452,7 @@ sparse_extract_file (int fd, struct tar_
file.stat_info = st;
file.fd = fd;
- file.seekable = lseek (fd, 0, SEEK_SET) == 0;
+ file.seekable = to_stdout_option ? false : lseek (fd, 0, SEEK_SET) == 0;
file.offset = 0;
rc = tar_sparse_decode_header (&file);
- [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Delker, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Schilling, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Delker, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Schilling, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Delker, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Schilling, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Delker, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Schilling, 2006/06/18
- Re: [Bug-tar] new/old extract problems with 6GB sparse file, Joerg Delker, 2006/06/18
Re: [Bug-tar] new/old extract problems with 6GB sparse file,
Sergey Poznyakoff <=
Re: [Bug-tar] new/old extract problems with 6GB sparse file, Paul Eggert, 2006/06/19
Re: [Bug-tar] new/old extract problems with 6GB sparse file, Paul Eggert, 2006/06/19