resolved: properly handle MTU logic

[elogind.git] / src / login / logind-seat.c

diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
index 96cf08e3b2f1b34fc6d2dc7d0ef2b44a85a94802..99921951511cc3c9293c06d0be12fb3669cda899 100644 (file)
--- a/src/login/logind-seat.c
+++ b/src/login/logind-seat.c
@@ -120,9 +120,9 @@ int seat_save(Seat *s) {
 
                 fprintf(f,
                         "ACTIVE=%s\n"
-                        "ACTIVE_UID=%lu\n",
+                        "ACTIVE_UID="UID_FMT"\n",
                         s->active->id,
-                        (unsigned long) s->active->user->uid);
+                        s->active->user->uid);
         }
 
         if (s->sessions) {
@@ -168,14 +168,12 @@ int seat_load(Seat *s) {
 }
 
 static int vt_allocate(unsigned int vtnr) {
-        _cleanup_free_ char *p = NULL;
+        char p[sizeof("/dev/tty") + DECIMAL_STR_MAX(unsigned int)];
         _cleanup_close_ int fd = -1;
 
         assert(vtnr >= 1);
 
-        if (asprintf(&p, "/dev/tty%u", vtnr) < 0)
-                return -ENOMEM;
-
+        snprintf(p, sizeof(p), "/dev/tty%u", vtnr);
         fd = open_terminal(p, O_RDWR|O_NOCTTY|O_CLOEXEC);
         if (fd < 0)
                 return -errno;
@@ -277,8 +275,13 @@ int seat_switch_to(Seat *s, unsigned int num) {
         if (!num)
                 return -EINVAL;
 
-        if (num >= s->position_count || !s->positions[num])
+        if (num >= s->position_count || !s->positions[num]) {
+                /* allow switching to unused VTs to trigger auto-activate */
+                if (seat_has_vts(s) && num < 64)
+                        return chvt(num);
+
                 return -EINVAL;
+        }
 
         return session_activate(s->positions[num]);
 }
@@ -487,7 +490,7 @@ void seat_claim_position(Seat *s, Session *session, unsigned int pos) {
         if (seat_has_vts(s))
                 pos = session->vtnr;
 
-        if (!GREEDY_REALLOC0_T(s->positions, s->position_count, pos + 1))
+        if (!GREEDY_REALLOC0(s->positions, s->position_count, pos + 1))
                 return;
 
         seat_evict_position(s, session);