[Dovecot] Configuration of LMTP Reject Code
urkedal at nbi.dk
Thu Mar 17 15:49:20 EET 2011
On 2011-03-17, Timo Sirainen wrote:
> On Thu, 2011-03-17 at 14:16 +0100, Petter Urkedal wrote:
> > I think there is a better solution. It seems that getpwnam_r is POSIX
> > and does the right thing.
> Oh, weird. I knew about that function but I never realized it fixed the
> error handling problem. Also everything I saw discussing the getpwnam()
> error problems never bothered to mention getpwnam_r().
Yeah, that's odd. I don't have the POSIX standard, but my reading a few
of the top Google matches for "getpwnam_r POSIX", suggests it returns 0
on "not found". My testing is for RHEL-6 using sssd.
> > The attached patch adds a feature-check for
> > getpwnam_r and, if present, uses it in userdb-passwd.c in place of the
> > problematic getpwnam. I've not some light testing on a non-production
> > server.
> I think I'll do a bit larger change here that replaces all getpwnam(),
> getpwuid() and maybe other calls. Dovecot doesn't need thread-safe
> getpw*() so I can do an easier to use wrapper function.
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