Problems creating a Kerberos test (sw_gethostbyname?)

[tridge at samba.org]

Andrew,

 > I was talking with Jay Fenlason (RedHat maintainer) about testing, and
 > he has a problem that he wants to run testsuites for QA, but that these
 > tests must be done on the production binaries (a standard requirement at
 > RedHat apparently).
 > 
 > Is it possible for the socketwrapper code to be used as an LD_PRELOAD,
 > to allow this kind of 'final binary' testing (of the built RPMS)?  I
 > realise as soon as you add/remove LD_PRELOAD you invalidate some of the
 > testing, but I wonder if there were any other barriers to this approach?

socketwrapper is already designed so you can run it in production, and
it enables itself only when an environment variable is set. I haven't
measured the performance cost of having it there when not used, but I
expect it to be quite small. It would be worth measuring.

I think preloads are not the right approach for this testing, but to
answer your specific question, yes, you could easily rejig
socketwrapper as a preload. I just don't think we should do that for
Samba testing.

Cheers, Tridge