resolved: rework parsing of /etc/hosts

[thirdparty/systemd.git] / src / login / logind-seat.c

diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
index f24fe96841eae0720a7203e3624e8eeacece5de3..c758ffd5fad0a0130de29cf880b923274af3820b 100644 (file)
--- a/src/login/logind-seat.c
+++ b/src/login/logind-seat.c
@@ -19,35 +19,45 @@
 #include "stdio-util.h"
 #include "string-util.h"
 #include "terminal-util.h"
+#include "tmpfile-util.h"
 #include "util.h"
 
-Seat *seat_new(Manager *m, const char *id) {
-        Seat *s;
+int seat_new(Seat** ret, Manager *m, const char *id) {
+        _cleanup_(seat_freep) Seat *s = NULL;
+        int r;
 
+        assert(ret);
         assert(m);
         assert(id);
 
-        s = new0(Seat, 1);
+        if (!seat_name_is_valid(id))
+                return -EINVAL;
+
+        s = new(Seat, 1);
         if (!s)
-                return NULL;
+                return -ENOMEM;
+
+        *s = (Seat) {
+                .manager = m,
+        };
 
         s->state_file = strappend("/run/systemd/seats/", id);
         if (!s->state_file)
-                return mfree(s);
+                return -ENOMEM;
 
         s->id = basename(s->state_file);
-        s->manager = m;
 
-        if (hashmap_put(m->seats, s->id, s) < 0) {
-                free(s->state_file);
-                return mfree(s);
-        }
+        r = hashmap_put(m->seats, s->id, s);
+        if (r < 0)
+                return r;
 
-        return s;
+        *ret = TAKE_PTR(s);
+        return 0;
 }
 
-void seat_free(Seat *s) {
-        assert(s);
+Seat* seat_free(Seat *s) {
+        if (!s)
+                return NULL;
 
         if (s->in_gc_queue)
                 LIST_REMOVE(gc_queue, s->manager->seat_gc_queue, s);
@@ -64,7 +74,8 @@ void seat_free(Seat *s) {
 
         free(s->positions);
         free(s->state_file);
-        free(s);
+
+        return mfree(s);
 }
 
 int seat_save(Seat *s) {
@@ -156,8 +167,8 @@ int seat_load(Seat *s) {
         return 0;
 }
 
-static int vt_allocate(unsigned int vtnr) {
-        char p[sizeof("/dev/tty") + DECIMAL_STR_MAX(unsigned int)];
+static int vt_allocate(unsigned vtnr) {
+        char p[sizeof("/dev/tty") + DECIMAL_STR_MAX(unsigned)];
         _cleanup_close_ int fd = -1;
 
         assert(vtnr >= 1);
@@ -165,7 +176,7 @@ static int vt_allocate(unsigned int vtnr) {
         xsprintf(p, "/dev/tty%u", vtnr);
         fd = open_terminal(p, O_RDWR|O_NOCTTY|O_CLOEXEC);
         if (fd < 0)
-                return -errno;
+                return fd;
 
         return 0;
 }
@@ -189,10 +200,8 @@ int seat_preallocate_vts(Seat *s) {
                 int q;
 
                 q = vt_allocate(i);
-                if (q < 0) {
-                        log_error_errno(q, "Failed to preallocate VT %u: %m", i);
-                        r = q;
-                }
+                if (q < 0)
+                        r = log_error_errno(q, "Failed to preallocate VT %u: %m", i);
         }
 
         return r;
@@ -209,9 +218,9 @@ int seat_apply_acls(Seat *s, Session *old_active) {
                             !!s->active, s->active ? s->active->user->uid : 0);
 
         if (r < 0)
-                log_error_errno(r, "Failed to apply ACLs: %m");
+                return log_error_errno(r, "Failed to apply ACLs: %m");
 
-        return r;
+        return 0;
 }
 
 int seat_set_active(Seat *s, Session *session) {
@@ -231,7 +240,7 @@ int seat_set_active(Seat *s, Session *session) {
                 session_send_changed(old_active, "Active", NULL);
         }
 
-        seat_apply_acls(s, old_active);
+        (void) seat_apply_acls(s, old_active);
 
         if (session && session->started) {
                 session_send_changed(session, "Active", NULL);
@@ -257,7 +266,7 @@ int seat_set_active(Seat *s, Session *session) {
         return 0;
 }
 
-int seat_switch_to(Seat *s, unsigned int num) {
+int seat_switch_to(Seat *s, unsigned num) {
         /* Public session positions skip 0 (there is only F1-F12). Maybe it
          * will get reassigned in the future, so return error for now. */
         if (num == 0)
@@ -275,7 +284,7 @@ int seat_switch_to(Seat *s, unsigned int num) {
 }
 
 int seat_switch_to_next(Seat *s) {
-        unsigned int start, i;
+        unsigned start, i;
 
         if (s->position_count == 0)
                 return -EINVAL;
@@ -296,7 +305,7 @@ int seat_switch_to_next(Seat *s) {
 }
 
 int seat_switch_to_previous(Seat *s) {
-        unsigned int start, i;
+        unsigned start, i;
 
         if (s->position_count == 0)
                 return -EINVAL;
@@ -316,7 +325,7 @@ int seat_switch_to_previous(Seat *s) {
         return -EINVAL;
 }
 
-int seat_active_vt_changed(Seat *s, unsigned int vtnr) {
+int seat_active_vt_changed(Seat *s, unsigned vtnr) {
         Session *i, *new_active = NULL;
         int r;
 
@@ -411,7 +420,7 @@ int seat_start(Seat *s) {
 }
 
 int seat_stop(Seat *s, bool force) {
-        int r = 0;
+        int r;
 
         assert(s);
 
@@ -421,9 +430,9 @@ int seat_stop(Seat *s, bool force) {
                            "SEAT_ID=%s", s->id,
                            LOG_MESSAGE("Removed seat %s.", s->id));
 
-        seat_stop_sessions(s, force);
+        r = seat_stop_sessions(s, force);
 
-        unlink(s->state_file);
+        (void) unlink(s->state_file);
         seat_add_to_gc_queue(s);
 
         if (s->started)
@@ -451,7 +460,7 @@ int seat_stop_sessions(Seat *s, bool force) {
 
 void seat_evict_position(Seat *s, Session *session) {
         Session *iter;
-        unsigned int pos = session->position;
+        unsigned pos = session->position;
 
         session->position = 0;
 
@@ -473,7 +482,7 @@ void seat_evict_position(Seat *s, Session *session) {
         }
 }
 
-void seat_claim_position(Seat *s, Session *session, unsigned int pos) {
+void seat_claim_position(Seat *s, Session *session, unsigned pos) {
         /* with VTs, the position is always the same as the VTnr */
         if (seat_has_vts(s))
                 pos = session->vtnr;
@@ -489,7 +498,7 @@ void seat_claim_position(Seat *s, Session *session, unsigned int pos) {
 }
 
 static void seat_assign_position(Seat *s, Session *session) {
-        unsigned int pos;
+        unsigned pos;
 
         if (session->position > 0)
                 return;