Re: How to check if pcap_t is really free?

[Gert Doering <gert () greenie muc de>]

Hi,

On Thu, Jun 20, 2013 at 10:36:27PM +0300, Nadav Vinik wrote:
> On 20 June 2013 20:16, Gert Doering <gert () greenie muc de> wrote:
> > On Thu, Jun 20, 2013 at 07:44:00PM +0300, Nadav Vinik wrote:
> > > After pcap_close handle is not NULL  since the following printf is not
> > print
> > > thanks
> > > Nadav
> > >
> > > pcap_close(handle);
> > >         if(handle == NULL) {
> >
> > In C, this will never ever change the value of "handle", unless
> > pcap_close() is a macro, which it isn't.
> >
> > This is not pascal, we have no way for a function to modify it's
> > arguments silently (you'd need to pass a pointer, &handle, to achiee
> > that)
>
> Hoever if I change to pcap_close(&handle) I get the following error:

Don't.  That was purely hypothetic.  Read up on pointers and C.

gert
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Gert Doering - Munich, Germany                             gert () greenie muc de
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