Wireshark · Wireshark-dev: Re: [Wireshark-dev] Wireshark on OSX Snow Leopard

[Guy Harris <guy@xxxxxxxxxxxx>]

On Aug 31, 2009, at 7:08 AM, Michael Tüxen wrote:

> I agree. I'm (slowly) trying to build Wireshark (and what it
> depends on) on a 64-bit SL system. Up to now I discovered a
> problem with dumpcap. Guy has a work around, which is not
> yet committed.

I have an idea of how to do a workaround - I haven't yet checked  
whether I can test at compile time whether there will be a problem or  
at run time whether there is a problem, so I don't actually have a  
workaround yet.

I also filed a bug on this, because the problem affects *any* code  
that uses the BIOCSRTIMEOUT or BIOCGRTIMEOUT ioctls, whether directly  
or through a library such as libpcap, and sets or gets a timeout  
that's not an integral number of seconds - it won't work correctly in  
64-bit mode.  Hopefully a fix will get into a software update.

(It works OK in 32-bit mode, so our binary packages work;  
BIOCSRTIMEOUT also happens, by luck, to behave properly with integral  
timeouts on little-endian machines, which is why this wasn't  
discovered as soon as somebody tried to use tcpdump.)