[Exim] Re: [SA-exim] local_scan is crashing (log_write crash)

[Marc MERLIN]

On Sun, May 23, 2004 at 09:11:37PM -0700, Marc MERLIN wrote:
> On Sun, May 23, 2004 at 03:33:17PM +0100, Adam D. Barratt wrote:
> > > That did the trick, thank you very much!  I changed this line, as well 
> > > as two debug lines I found which try to print fdsize-18.
> > 
> > It should probably be (double)(fdsize - 18) so that it still works on
> > platforms where sizeof(off_t) != 8 (i.e. most of them *g*).
>  
> Adam, thanks for finding all this.
> I can't believe I made that stupid mistake, I should know better.
> At least, I did define fdstart as an off_t, and not an int, but I completely
> forgot that (s)printf (which I'm guessing exim uses internally for
> log_write) doesn't actually convert types (I've one way too much perl in the
> last years, one gets lazy after that)
>  
> > > Why does this fix work?  I figure "%.0f" means a floating-point value 
> > > with no decimal places, but why does displaying the number as a float 
> > > instead of a decimal solve the problem?
> > 
> > "%%d" *isn't* (just) "a decimal", it's a synonym for "%i", and thus an
> > /int/. On many (probably still most) platforms, sizeof(int) ==
> 
> Yeah, that was my mistake. Stuff like that works in higher level languages
> were %d really does mean decimal.
> 
> Again, thanks for the analysis, I'll put out a new sa-exim with this and a
> few other fixes soon.

Just to say that I haven't entirely disappeared, it's in the CVS tree of
my laptop. The changes were pretty big to fix all that 64 bit-ness into
printf (via log_write). I'll need to test this a bit after the plane
lands and I can sync up all this and throw real mail at it.

Marc
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