[Tfug] HTTP file size limitation

[unix mitosis]

I've had a similar issue. Have you tried to download a similar sized file 
for comparison? The file sizes are usually packed in to long ints, or 
double long, or something like that.

Try a download manager. THere's a free open source version at 
portableapps.com. They allow the user to download byteranges which allows 
the HTTP protocol to selectively download partial portions of a larger 
file.'


On Tue, 25 Sep 2012, Bexley Hall wrote:

> Date: Tue, 25 Sep 2012 22:33:05 -0700 (PDT)
> From: Bexley Hall <bexley401 at yahoo.com>
> Reply-To: Tucson Free Unix Group <tfug at tfug.org>
> To: tfug at tfug.org
> Subject: [Tfug] HTTP file size limitation
> 
> Hi,
>
> Perhaps over-tired and this might make more sense to me
> after some Zzzz's...
>
> I was trying to pull down a 4.4G file on an XP box via
> Firefox, today.  Transfer went well for the first 435MB,
> then, suddenly, stopped.
>
> Hmmm...
>
> Since I've been tinkering with cables, I figured I might
> have nudged something at the wrong time.  So, tried
> again.
>
> Same result.
>
> WTF?
>
> Tried a third time and noticed firefox still thought there was
> more file remaining... just nothing coming down the pipe!
>
> OK, maybe a problem with Firefox.  Tried an (older!) version
> of IE.  *It* decided the file was only ~434MB long and
> downloaded exactly that much, "successfully".
>
> Fine, MS can't handle long files.  4.4GB - 434MB = ~4G.
> MS probably forced the file size into an unint32, etc.
>
> But, Firefox saw the big file... it just didn't get the
> last 4G of it (though it waited for it!).
>
> Upgraded Firefox, just to be sure.
>
> Same result.
>
> Screw these damn MS machines... used one of the NetBSD hosts
> to pull the file down.  Ah, yes... size that wget(1) claims
> is 4,750,912,458 bytes (I'll assume that's 4.4G in MS-terms).
>
> But, *it* hangs at 455,945,162 bytes transferred!  Wanna bet
> that's 434MB??
>
> And, the sharp tacks in the class will note the difference
> between these two figures is *exactly* (i.e. plus or minus 0!)
> 4G!
>
> So, what's going on??
>
> (sigh)  I'll look at it again in the morning.  My body can't
> handle these 40 hour days, anymore.  :<
>
> --don
>
>
> 4294967296
>
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unixmito at sdf.lonestar.org
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