Here is some documentation I did some time ago ...
Hope it helps ...
Jason
/**************************************** Function Header *********************
** Function : cb()
**
** Description: This is the verification callback function used by SSLeay when
** checking the validity of certificates.
**
** Parameters : ok (int)
** This is passed from the X509 verify function, this is set to
** what the (SSLeay) verify function would return before the
** intervention of our callback here.
**
** xs (X509*)
** Subjects certificate structure.
**
** xi (X509*)
** Issuers certificate structure.
**
** depth (int)
** If this is 0, then we are checking the subject certificate.
** If this is > 0, then we are checking the CA chain.
**
** arg (char*)
** Optional arguments to the callback.
**
** Notes : Finally figured out what all the input parameters are !!!!!
**
** Returns : If our test on the certificate error passes then we return 1.
** If our test fails, then we return 0.
******************************************************************************/
int cb(int ok,
X509* xs,
X509*, // xi,
int depth,
int error,
char* arg)
{
...
}
========================================================================================
Alessandro Vesely wrote:
>
> someone wrote:
> >
> > >
> > > > > Hello,
> > > ...
> > > > You might want to use global variables to guess [...]
>
> Uh? So what was it all about that extra void* parameter in the cb?
>
> cheers
> A.
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