Re: [HACKERS] packetBuf size

Yea...that sounds like a good idea. We will have ample time to find out if
it affects anything.

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       Igor Natanzon      |**|   E-mail: igor@sba.miami.edu
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On Sat, 7 Jun 1997, Bruce Momjian wrote:

> >
> > Does anyone have any idea why the DATA variable in
> > PacketBuf is this MESSAGE_SIZE size in libpq?
> > #define MESSAGE_SIZE  sizeof(StartupInfo)+5
> >                              ^^^
> > Bruce, I think you might have commented on this before..I am not sure.
> > The total amount of data written into that variable is
> > database (64 bytes), username (32 bytes), options (64), execfile(64),
> > tty (64)...total is 288 bytes (MESSAGE_SIZE is 293). The last 5 bytes are
> > never used. Purify reports an uninitialized memory read when the packetBuf
> > is passed into sendto() function. Removing the +5 from the definition of
> > MESSAGE_SIZE removes this error, and I haven't noticed any problems after
> > running regression tests...
> >
> > Comments?
>
> No one knows what that 5 is for.  We are going to do some libpq
> communication changes in 6.2, so hopefully we will eliminate it then.
>
> I say remove the +5 as soon we start on 6.2, and see what happens.
>
>
>
> --
> Bruce Momjian
> maillist@candle.pha.pa.us
>

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