/*
 * Traceroute using libevent, libdnet and libpcap
 *
 * 2012 Laurent Ghigonis <laurent@p1sec.com>
 *
 * Inspired from jtrace (http://monkey.org/~jose/software/jtrace/)
 *   Copyright (c) 2003-2004 Jose Nazario <jose@monkey.org>
 *   All rights reserved.
 */

struct ggnet_traceroute *
ggnet_traceroute_new(struct event_base *ev_base)
{
  struct ggnet_traceroute *ggtr;

  ggtr = calloc(1, sizeof(struct ggnet_traceroute));
  if (!ggtr) {
    printf("could not allocate ggnet_traceroute\n");
    exit(1);
  }
  ggtr->ev_base = ev_base;
  return ggdns;
}

void
ggnet_traceroute_free(struct ggnet_traceroute *ggtr)
{
  free(ggtr);
}

struct ggnet_traceroute_req *
ggnet_traceroute_trace(struct ggnet_traceroute *ggtr,
                       struct in_iddr *ip,
                       void (*cb_usr)(struct in_addr *, struct ggnet_traceroute_req *, void *),
                       void *data)
{
  struct ggnet_traceroute_req *req;

  req = calloc(1, sizeof(struct ggnet_traceroute_req));
  if (!req) {
    printf("could not allocate ggnet_traceroute_req\n");
    exit(1);
  }

  LIST_INSERT_HEAD(&ggtr->req_list, req, entry);
  return req;
}

void
ggnet_traceroute_cancel(struct ggnet_traceroute *ggtr,
                        struct ggnet_traceroute_req *req)
{
  LIST_REMOVE(req, entry);
  ggtr->req_pending--;
  free(req);
}