similar to: questions about librsync

On Tue, 2006-02-21 at 14:58 -0800, rsync2eran@tromer.org wrote: > A year ago we discussed the strength of the MD4 hash used by rsync and > librsync, and one of the points mentioned was that only collision > attacks are known on MD4. Could you please forward this into the bug tracker so it's not lost? -- Martin -------------- next part -------------- A non-text attachment was

Hi, Is there a way in which rsync's -z compression (zlib) utility can be benchmarked? I'm trying to compare the compression ratio between rsync and external compression tools like gzip and bzip2. Are there any advantages to using rsync's internal compression mechanism specified with the -z option compared to solely applying external compression i.e. bzip2 to the files and invoking

On Thu, 2004-04-08 at 12:36, Martin Pool wrote: > On 5 Apr 2004, Donovan Baarda <abo@minkirri.apana.org.au> wrote: > > > librsync needs a whole file checksum. Without it, it silently fails for > > case 1), 3), and 4). > > Yes, a whole-file checksum should be used with it. Presumably > something stronger than md4 like SHA-1. md4 is probably good enough for most

G'day, I've been working on a Python interface to librsync and have noticed that it uses md4sum code borrowed from Andrew Tridgell and Martin Pool that comes via rsync and was originally written for samba. Is there anything special about this code compared to the RSA md4sum code that can be found with libmd <"http://www.penguin.cz/~mhi/libmd/">? Python uses the RSA

Hi, while implementing the rsync protocol in one of our projects I found that the current CVS version still has a MD4 bug. I'm using the FreeBSD libmd implementation and I still had checksum mismatches with protocol version 27 for files whose size was a multiple of 64 - 4 ( - 4 due to checksum_seed). A patch for todays CVS version is attached. Someone should also review the clean_fname()

Hi, I have a unique issue that I am dealing with here. I need to develop rsync algorithm into a library that can be re-used with my VB / VC application on Windows platform. I need your advice if there is any library already available on the Internet for this? I did get librsync but that is just a header file which I do not know how to compile also with the existing code I have. Can you

I'm interested in these very questions (librsync-rsync relationship, remaining limitations of rsync, active prospects for ground-up rewrites), Google searches for rsync info have proved a little too vague due to the programs ubiquity. Much has certainly changed since this was written, could some people with knowledge in these areas could update martin's response for the state of rsync,

On Tue, Jan 28, 2003 at 11:22:14PM -0800, Craig Barratt wrote: > And I have several things I would like to work on and submit: > > - Fix the MD4 block and file checksums to comply with the rfc > (currently MD4 is wrong for blocks of size 64*n, or files > longer than 512MB). > > - Adaptive first pass checksum lengths: use 3 or more bytes of the MD4 > block

Hi, The following lines in compat.c are rather imprudent: if (read_batch || write_batch) checksum_seed = 32761; else checksum_seed = time(NULL); write_int(f_out,checksum_seed); Setting checksum_seed to a constant in batch mode means block collisions are reproducible and predictable. Thus, some files will be permanently "unlucky" in batch mode and will

Hi, Where can I get good pointers on the rolling checksum algorithm used in rsync? I need an 8-bit or 12-bit rolling checksum too. Any place where "rolling" checksum algorithms are discussed? Seun Osewa ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/

hello, I'm new to this list. here is my question: I would like to synchronize two computers (say the home one and the job one) using zip drives or similar (cdroms, etc), since modem lines are quite slow and expensive (in Italy). I though I could produce the "signature" of files on home computer, store it on a zip, go to job, run rsync to copy the missing or altered files on

On the subject of needed patches, I just recently completed a patch for librsync that fixed the mdfour code to have uint_64 or 2 uint_32's for size. Without this, the checksums on files >512Megs are incorrect. The code should drop into rsync without a hitch. The same goes for mdfour in samba, becuase that is where librsync got the code from anyway. Robert Weber University of

Is there any chance for rdiff ? I need to frequently synchronize big text file (60MB+) undertaking small changes and I am interested in differences between the subsequent versions [DNS RBL data in dnsbl format, 1E6+ lines of text, new version every 20m, on average 50 new entries (lines) in every synchronization] I would like to get (small) diff file as result of rsync session and apply it to

Hi, I currently create large (500MB-2.5GB) tar.gz files that I am trying to get to rsync better. After doing some research by reading a lecture presented by the original author of rsync and googling the list archives, I have concluded that the gzip-rsyncable.diff is the best way to get gzipped files to rsync nicely. The only version I could find of this patch is available here:

For anyone who'd like to check out the latest release of my "rzync" [sic] test release, I've just released a new version. For those that might not have time to look at the code but could provide some feedback based on a rough description, I've created the following simple web page: http://www.clari.net/~wayne/new-protocol.html Here's the tar file of the new

Hi Donovan, Thank you for the insight. I will keep you posted on this. Best Regards Naveen A. >From: Donovan Baarda <abo@minkirri.apana.org.au> >To: Naveen Athresh <naveenathresh@hotmail.com> >CC: rsync@samba.org,librsync developers list ><librsync-devel@lists.sourceforge.net> >Subject: Re: rsync - windows how should I compile the code any clues >-Thanks

I've been working for the past few months with open-source solutions for syncing Palm PDAs (Coldsync, mostly). I've been becoming increasingly annoyed with Palm's Desktop Link Protocol and the sync mechanism, and am considering replacing it with a third-party application for the Palm. Since I've had good luck with rsync in the past, its seemed an obvious choice. I've

As threatened a while back, there are some exclude/include bugs that I'd like to see fixed in rsync. Here is the patch: http://www.blorf.net/rsync-exclude.patch This fixes the following bugs: - A non-anchored, slash-including pattern with a wildcard needs to be matched at the end of the path (e.g. "CVS/R* should match throughout the tree, not just at /CVS/R*). - A leading

Hi, I'm mirroring a single server to multiple clients. Currently I'm using scp, but I (think I) want to use rsync. The files I'm mirroring are large - c.4GB (video data) Each client has a different set of these files. The transfer is done over the internet, and may fail (regularly!). I set up a separate directory for each client, and put in symlinks to the actual files (maximum

This patch updates the files under popt/ to the latest vendor drop. The only change is the inclusion of a FreeBSD-specific patch to popt.c. This is needed in case somebody decides to build rsync on that platform without using the port. I'm not happy about the wording in popt/README.rsync so I may change it. The patch is available at http://www.catnook.com/rsync-popt-1.5.1.patch Comments