+static void start_backend(void)
+{
+ const char *error;
+ char msg[1024], *title;
+ char *realhost;
+ int i;
+
+ /*
+ * Select protocol. This is farmed out into a table in a
+ * separate file to enable an ssh-free variant.
+ */
+ back = NULL;
+ for (i = 0; backends[i].backend != NULL; i++)
+ if (backends[i].protocol == cfg.protocol) {
+ back = backends[i].backend;
+ break;
+ }
+ if (back == NULL) {
+ char *str = dupprintf("%s Internal Error", appname);
+ MessageBox(NULL, "Unsupported protocol number found",
+ str, MB_OK | MB_ICONEXCLAMATION);
+ sfree(str);
+ cleanup_exit(1);
+ }
+
+ error = back->init(NULL, &backhandle, &cfg,
+ cfg.host, cfg.port, &realhost, cfg.tcp_nodelay,
+ cfg.tcp_keepalives);
+ back->provide_logctx(backhandle, logctx);
+ if (error) {
+ char *str = dupprintf("%s Error", appname);
+ sprintf(msg, "Unable to open connection to\n"
+ "%.800s\n" "%s", cfg.host, error);
+ MessageBox(NULL, msg, str, MB_ICONERROR | MB_OK);
+ sfree(str);
+ exit(0);
+ }
+ window_name = icon_name = NULL;
+ if (*cfg.wintitle) {
+ title = cfg.wintitle;
+ } else {
+ sprintf(msg, "%s - %s", realhost, appname);
+ title = msg;
+ }
+ sfree(realhost);
+ set_title(NULL, title);
+ set_icon(NULL, title);
+
+ /*
+ * Connect the terminal to the backend for resize purposes.
+ */
+ term_provide_resize_fn(term, back->size, backhandle);
+
+ /*
+ * Set up a line discipline.
+ */
+ ldisc = ldisc_create(&cfg, term, back, backhandle, NULL);
+
+ /*
+ * Destroy the Restart Session menu item. (This will return
+ * failure if it's already absent, as it will be the very first
+ * time we call this function. We ignore that, because as long
+ * as the menu item ends up not being there, we don't care
+ * whether it was us who removed it or not!)
+ */
+ for (i = 0; i < lenof(popup_menus); i++) {
+ DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
+ }
+
+ session_closed = FALSE;
+}
+
+static void close_session(void)
+{
+ char morestuff[100];
+ int i;
+
+ session_closed = TRUE;
+ sprintf(morestuff, "%.70s (inactive)", appname);
+ set_icon(NULL, morestuff);
+ set_title(NULL, morestuff);
+
+ if (ldisc) {
+ ldisc_free(ldisc);
+ ldisc = NULL;
+ }
+ if (back) {
+ back->free(backhandle);
+ backhandle = NULL;
+ back = NULL;
+ update_specials_menu(NULL);
+ }
+
+ /*
+ * Show the Restart Session menu item. Do a precautionary
+ * delete first to ensure we never end up with more than one.
+ */
+ for (i = 0; i < lenof(popup_menus); i++) {
+ DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
+ InsertMenu(popup_menus[i].menu, IDM_DUPSESS, MF_BYCOMMAND | MF_ENABLED,
+ IDM_RESTART, "&Restart Session");
+ }
+}
+