XS(XS_Net__Pcap_file); /* prototype to pass -Wmissing-prototypes */
XS(XS_Net__Pcap_file)
{
    dXSARGS;
    if (items != 1)
	Perl_croak(aTHX_ "Usage: Net::Pcap::file(p)");
    {
	pcap_t *	p;
	FILE *	RETVAL;

        if (sv_derived_from(ST(0), "pcap_tPtr")) {
            IV tmp = SvIV((SV*)SvRV(ST(0)));
            p = (pcap_t *) tmp;
        }
        else
            croak("p is not of type pcap_tPtr");

	RETVAL = pcap_file(p);
	ST(0) = sv_newmortal();
	{
	    GV *gv = newGVgen("Net::Pcap");
	    if ( do_open(gv, "<&", 2, FALSE, 0, 0, RETVAL) )
		sv_setsv(ST(0), sv_bless(newRV((SV*)gv), gv_stashpv("Net::Pcap",1)));
	    else
		ST(0) = &PL_sv_undef;
	}
    }
    XSRETURN(1);
}