[Linux-cluster] Bufferoverrun in cman_tool/join.c

[Patrick Caulfield]

On Wed, Mar 16, 2005 at 11:46:38AM +0100, Michael Stübiger wrote:
> Hello!
> 
> The buffersize of 512 as defined in cman_tool/join.c seems to be insufficient in some cases.
> When I tried to add a node with a FQDN of 42 characters in length to the cluster I got the following
> error message:
> 
> can't resolve node name <nodename>
> 
> Since DNS was working correctly both ways the message was plainly missleading.
> Strace'ing a join showed that gethostbyname2_r exited with an error number indicating a bufferoverrun.
> 
> Changing the buffersize to 1024 solved the Problem in this case.
> 

Thanks, I'll change that in CVS.  I'll also get it to print the real error in
case gethostbyname2_r fails for any other reason.
-- 

patrick