Пример #1
0
static int nl80211_init(void)
{
	int err, fd;

	if (!nls)
	{
		nls = malloc(sizeof(struct nl80211_state));
		if (!nls) {
			err = -ENOMEM;
			goto err;
		}

		memset(nls, 0, sizeof(*nls));

		nls->nl_sock = nl_socket_alloc();
		if (!nls->nl_sock) {
			err = -ENOMEM;
			goto err;
		}

		if (genl_connect(nls->nl_sock)) {
			err = -ENOLINK;
			goto err;
		}

		fd = nl_socket_get_fd(nls->nl_sock);
		if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) {
			err = -EINVAL;
			goto err;
		}

		if (genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
			err = -ENOMEM;
			goto err;
		}

		nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
		if (!nls->nl80211) {
			err = -ENOENT;
			goto err;
		}

		nls->nlctrl = genl_ctrl_search_by_name(nls->nl_cache, "nlctrl");
		if (!nls->nlctrl) {
			err = -ENOENT;
			goto err;
		}
	}

	return 0;


err:
	nl80211_close();
	return err;
}
void iwinfo_finish(void)
{
#ifdef USE_WL
	wl_close();
#endif
#ifdef USE_MADWIFI
	madwifi_close();
#endif
#ifdef USE_NL80211
	nl80211_close();
#endif
	wext_close();
	iwinfo_close();
}
/* Shutdown backends */
static int iwinfo_L__gc(lua_State *L)
{
#ifdef USE_WL
    wl_close();
#endif
#ifdef USE_MADWIFI
    madwifi_close();
#endif
#ifdef USE_NL80211
    nl80211_close();
#endif
    wext_close();
    iwinfo_close();
}