[SSSD] fix debug-tests.c coverity issues: NEGATIVE_RETURNS, FORWARD_NULL
Stephen Gallagher
sgallagh at redhat.com
Mon Oct 17 14:30:10 UTC 2011
On Mon, 2011-10-17 at 16:12 +0200, Pavel Březina wrote:
> Dne 17.10.2011 15:07, Stephen Gallagher napsal(a):
> > On Mon, 2011-10-17 at 15:03 +0200, Pavel Březina wrote:
> >> https://fedorahosted.org/sssd/ticket/1046
> >
> >
> > Nack
> >
> > The DEBUG_TEST_NOK stuff is wrong. If it returns DEBUG_TEST_NOK, you're
> > not calling fail().
>
> The if condition is a little bit different than it was in previous
> patch, but the scheme is the same:
>
> if (result == DEBUG_TEST_NOK && errno != 0) {
> error_msg = strerror(errno);
> fail(error_msg);
> }
>
> char *msg = NULL;
> msg = talloc_asprintf(NULL, "Test of level %#.4x failed -
> message has been written", levels[i]);
> *fail_unless(result == EOK, msg);*
>
> >
> > What I was trying to tell you in the first place is that you cannot mix
> > return code types from test_helper_debug_check_message(). It needs to
> > either return *only* DEBUG_TEST_* results or *only* errno error codes.
> > It cannot return a mixture of the two.
>
> I hope you'll like it now.
Much better, but one little change remains:
You can reduce
if (result == DEBUG_TEST_NOK && errno != 0) {
error_msg = strerror(errno);
fail(error_msg);
}
to
if (result == DEBUG_TEST_NOK) {
error_msg = strerror(errno);
fail(error_msg);
}
It's safe to pass 0 to strerror() (It prints "Success"), and you want it
to be a failure here even if there's a bug causing errno to have been
reset. The DEBUG_TEST_NOK is the definitive failure code.
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