#
# Map C types to Perl types
#

pcap_t *                T_PTROBJ
pcap_dumper_t *         T_PTROBJ
struct bpf_program *    T_PTROBJ
pcap_send_queue *       T_PTROBJ
bpf_u_int32             T_UV
u_int                   T_UV
u_char *                T_PV
const char *            T_PV

#
# Input conversions
#

INPUT

T_PTROBJ
        if (sv_derived_from($arg, \"${ntype}\")) {
            IV tmp = SvIV((SV*)SvRV($arg));
            $var = ($type) tmp;
        }
        else
            croak(\"$var is not of type ${ntype}\")

#
# Output conversions
#

OUTPUT

T_PTROBJ
        sv_setref_pv($arg, \"${ntype}\", (void*)$var);