void tap_cleanup(void)
{
volatile tap_listener_t *elem_lq;
volatile tap_listener_t *head_lq = tap_listener_queue;
tap_dissector_t *elem_dl;
tap_dissector_t *head_dl = tap_dissector_list;
while(head_lq){
elem_lq = head_lq;
head_lq = head_lq->next;
free_tap_listener(elem_lq);
}
while(head_dl){
elem_dl = head_dl;
head_dl = head_dl->next;
g_free((char*)elem_dl->name);
g_free((gpointer)elem_dl);
}
#ifdef HAVE_PLUGINS
g_slist_free(tap_plugins);
tap_plugins = NULL;
#endif /* HAVE_PLUGINS */
}
/* this function attaches the tap_listener to the named tap.
* function returns :
* NULL: ok.
* non-NULL: error, return value points to GString containing error
* message.
*/
GString *
register_tap_listener(const char *tapname, void *tapdata, const char *fstring,
guint flags, tap_reset_cb reset, tap_packet_cb packet, tap_draw_cb draw)
{
volatile tap_listener_t *tl;
int tap_id;
dfilter_t *code=NULL;
GString *error_string;
gchar *err_msg;
tap_id=find_tap_id(tapname);
if(!tap_id){
error_string = g_string_new("");
g_string_printf(error_string, "Tap %s not found", tapname);
return error_string;
}
tl=(volatile tap_listener_t *)g_malloc0(sizeof(tap_listener_t));
tl->needs_redraw=TRUE;
tl->flags=flags;
if(fstring){
if(!dfilter_compile(fstring, &code, &err_msg)){
error_string = g_string_new("");
g_string_printf(error_string,
"Filter \"%s\" is invalid - %s",
fstring, err_msg);
g_free(err_msg);
free_tap_listener(tl);
return error_string;
}
}
tl->fstring=g_strdup(fstring);
tl->code=code;
tl->tap_id=tap_id;
tl->tapdata=tapdata;
tl->reset=reset;
tl->packet=packet;
tl->draw=draw;
tl->next=tap_listener_queue;
tap_listener_queue=tl;
return NULL;
}
/* this function removes a tap listener
*/
void
remove_tap_listener(void *tapdata)
{
volatile tap_listener_t *tl=NULL,*tl2;
if(!tap_listener_queue){
return;
}
if(tap_listener_queue->tapdata==tapdata){
tl=tap_listener_queue;
tap_listener_queue=tap_listener_queue->next;
} else {
for(tl2=tap_listener_queue;tl2->next;tl2=tl2->next){
if(tl2->next->tapdata==tapdata){
tl=tl2->next;
tl2->next=tl2->next->next;
break;
}
}
}
free_tap_listener(tl);
}