rsync - Jun 2008 - supporting HFS+ attributes and forks on a Linux rsync server?

I'm trying to use rsync to back up a Mac OS X machine to a Linux server. 
I've used the instructions at http://www.bombich.com/mactips/rsync.html 
to patch and install rsync 3.0.2 to support HFS+ attributes and forks on 
the client. I was assuming the Linux box needed the same version, and so 
tried compiling the patched rsync but got the following:

syscall.c: In function `get_create_time':
syscall.c:406: storage size of `attrList' isn't known
syscall.c:409: `ATTR_BIT_MAP_COUNT' undeclared (first use in this function)
syscall.c:409: (Each undeclared identifier is reported only once
syscall.c:409: for each function it appears in.)
syscall.c:410: `ATTR_CMN_CRTIME' undeclared (first use in this function)
syscall.c:411: warning: implicit declaration of function `getattrlist'
syscall.c:411: `FSOPT_NOFOLLOW' undeclared (first use in this function)
syscall.c:406: warning: unused variable `attrList'
syscall.c: In function `set_create_time':
syscall.c:418: storage size of `attrList' isn't known
syscall.c:428: `ATTR_BIT_MAP_COUNT' undeclared (first use in this function)
syscall.c:429: `ATTR_CMN_CRTIME' undeclared (first use in this function)
syscall.c:430: warning: implicit declaration of function `setattrlist'
syscall.c:430: `FSOPT_NOFOLLOW' undeclared (first use in this function)
syscall.c:418: warning: unused variable `attrList'

...which, I suppose, makes sense since Linux doesn't use HFS+. This 
Linux box already has an rsync that supports extended atttibutes. From 
its version string, I'm guessing it's similar to the default OS X one 
(an Apple-patch 2.6.3 that's apparently got some issues). I'm also 
presuming the versions on client and server have to match, at least 
roughly? So, for instance, if the server-side one that's already there 
uses -E for extended attributes and 3.0.2 uses -X, they probably won't 
cooperate? (They don't seem to be in my initial tests).

Any suggestions? Is there a way to compile rsync for Linux that will 
preserve the extended attributes, resource forks, etc? Or if not, what 
should I be doing?

Thanks!

Dave Feldman

On Thu, 2008-06-19 at 17:48 -0700, David Feldman wrote:
> I'm trying to use rsync to back up a Mac OS X machine to a Linux
server.
> I've used the instructions at http://www.bombich.com/mactips/rsync.html
> to patch and install rsync 3.0.2 to support HFS+ attributes and forks on 
> the client. I was assuming the Linux box needed the same version, and so 
> tried compiling the patched rsync but got the following:
> 
> syscall.c: In function `get_create_time':
> syscall.c:406: storage size of `attrList' isn't known
> syscall.c:409: `ATTR_BIT_MAP_COUNT' undeclared (first use in this
function)
> syscall.c:409: (Each undeclared identifier is reported only once
> syscall.c:409: for each function it appears in.)
> syscall.c:410: `ATTR_CMN_CRTIME' undeclared (first use in this
function)
> syscall.c:411: warning: implicit declaration of function `getattrlist'
> syscall.c:411: `FSOPT_NOFOLLOW' undeclared (first use in this function)
> syscall.c:406: warning: unused variable `attrList'
> syscall.c: In function `set_create_time':
> syscall.c:418: storage size of `attrList' isn't known
> syscall.c:428: `ATTR_BIT_MAP_COUNT' undeclared (first use in this
function)
> syscall.c:429: `ATTR_CMN_CRTIME' undeclared (first use in this
function)
> syscall.c:430: warning: implicit declaration of function `setattrlist'
> syscall.c:430: `FSOPT_NOFOLLOW' undeclared (first use in this function)
> syscall.c:418: warning: unused variable `attrList'
> 
> ...which, I suppose, makes sense since Linux doesn't use HFS+. This 
> Linux box already has an rsync that supports extended atttibutes. From 
> its version string, I'm guessing it's similar to the default OS X
one
> (an Apple-patch 2.6.3 that's apparently got some issues). I'm also 
> presuming the versions on client and server have to match, at least 
> roughly? So, for instance, if the server-side one that's already there 
> uses -E for extended attributes and 3.0.2 uses -X, they probably won't 
> cooperate? (They don't seem to be in my initial tests).
Different versions of rsync generally enjoy wide compatibility for
features they handle in the same way, but the Apple -E implementation
won't be able to exchange extended attributes with the rsync 3.* -X
implementation.
> Is there a way to compile rsync for Linux that will 
> preserve the extended attributes, resource forks, etc? Or if not, what 
> should I be doing?
You won't be able to preserve file flags and creation times since Linux
doesn't have them.  On the other hand, rsync 3.0.2 with -X will preserve
getxattr-style extended attributes (including resource forks, which Mac
OS 10.4+ exposes as extended attributes); no patches are needed.

Matt
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