Merge pull request #1256 from sghctoma/fbsd-multiseat-fixes

Apply multiseat fixes to FreeBSD direct backend

backend/session/direct-freebsd.c

@@ -68,11 +68,19 @@ static void direct_session_close(struct wlr_session *base, int fd) {
 
 static bool direct_change_vt(struct wlr_session *base, unsigned vt) {
 	struct direct_session *session = direct_session_from_session(base);
+
+	// Only seat0 has VTs associated with it
+	if (strcmp(session->base.seat, "seat0") != 0) {
+		return true;
+	}
+
 	return ioctl(session->tty_fd, VT_ACTIVATE, (int)vt) == 0;
 }
 
 static void direct_session_destroy(struct wlr_session *base) {
 	struct direct_session *session = direct_session_from_session(base);
+
+	if (strcmp(session->base.seat, "seat0") == 0) {
 		struct vt_mode mode = {
 			.mode = VT_AUTO,
 		};
@@ -89,11 +97,13 @@ static void direct_session_destroy(struct wlr_session *base) {
 			wlr_log(WLR_ERROR, "Failed to restore tty");
 		}
 
+		wl_event_source_remove(session->vt_source);
+		close(session->tty_fd);
+	}
+
 	direct_ipc_finish(session->sock, session->child);
 	close(session->sock);
 
-	wl_event_source_remove(session->vt_source);
-	close(session->tty_fd);
 	free(session);
 }
 
@@ -221,13 +231,23 @@ static struct wlr_session *direct_session_create(struct wl_display *disp) {
 		goto error_session;
 	}
 
+	const char *seat = getenv("XDG_SEAT");
+	if (!seat) {
+		seat = "seat0";
+	}
+
+	if (strcmp(seat, "seat0") == 0) {
 		if (!setup_tty(session, disp)) {
 			goto error_ipc;
 		}
+	} else {
+		session->base.vtnr = 0;
+		session->tty_fd = -1;
+	}
 
 	wlr_log(WLR_INFO, "Successfully loaded direct session");
 
-	snprintf(session->base.seat, sizeof(session->base.seat), "seat0");
+	snprintf(session->base.seat, sizeof(session->base.seat), "%s", seat);
 	session->base.impl = &session_direct;
 	return &session->base;