+int seat_read_active_vt(Seat *s) {
+ char t[64];
+ ssize_t k;
+ int r, vtnr;
+
+ assert(s);
+
+ if (s->manager->vtconsole != s)
+ return 0;
+
+ lseek(s->manager->console_active_fd, SEEK_SET, 0);
+
+ k = read(s->manager->console_active_fd, t, sizeof(t)-1);
+ if (k <= 0) {
+ log_error("Failed to read current console: %s", k < 0 ? strerror(-errno) : "EOF");
+ return k < 0 ? -errno : -EIO;
+ }
+
+ t[k] = 0;
+ truncate_nl(t);
+
+ if (!startswith(t, "tty")) {
+ log_error("Hm, /sys/class/tty/tty0/active is badly formatted.");
+ return -EIO;
+ }
+
+ r = safe_atoi(t+3, &vtnr);
+ if (r < 0) {
+ log_error("Failed to parse VT number %s", t+3);
+ return r;
+ }
+
+ if (vtnr <= 0) {
+ log_error("VT number invalid: %s", t+3);
+ return -EIO;
+ }
+
+ return seat_active_vt_changed(s, vtnr);
+}
+
+int seat_start(Seat *s) {
+ assert(s);
+
+ /* Initialize VT magic stuff */
+ seat_preallocate_vts(s);
+
+ /* Read current VT */
+ seat_read_active_vt(s);
+
+ /* Save seat data */
+ seat_save(s);
+
+ return 0;
+}
+