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-rw-r--r--src/core/dbus-unit.c94
1 files changed, 42 insertions, 52 deletions
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 83ee018ff3..8433a720b2 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -235,7 +235,7 @@ static int bus_unit_append_can_isolate(DBusMessageIter *i, const char *property,
static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *data) {
Unit *u = data;
DBusMessageIter sub;
- char *p;
+ _cleanup_free_ char *p = NULL;
assert(i);
assert(property);
@@ -246,14 +246,13 @@ static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *d
if (u->job) {
- if (!(p = job_dbus_path(u->job)))
+ p = job_dbus_path(u->job);
+ if (!p)
return -ENOMEM;
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->job->id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p))
return -ENOMEM;
- }
} else {
uint32_t id = 0;
@@ -261,18 +260,15 @@ static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *d
* data. Since we need to fill in a valid path we
* simple point to ourselves. */
- if (!(p = unit_dbus_path(u)))
+ p = unit_dbus_path(u);
+ if (!p)
return -ENOMEM;
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
+ !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p))
return -ENOMEM;
- }
}
- free(p);
-
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
@@ -289,8 +285,10 @@ static int bus_unit_append_default_cgroup(DBusMessageIter *i, const char *proper
assert(property);
assert(u);
- if ((cgb = unit_get_default_cgroup(u))) {
- if (!(t = cgroup_bonding_to_string(cgb)))
+ cgb = unit_get_default_cgroup(u);
+ if (cgb) {
+ t = cgroup_bonding_to_string(cgb);
+ if (!t)
return -ENOMEM;
} else
t = (char*) "";
@@ -312,15 +310,14 @@ static int bus_unit_append_cgroups(DBusMessageIter *i, const char *property, voi
return -ENOMEM;
LIST_FOREACH(by_unit, cgb, u->cgroup_bondings) {
- char *t;
+ char _cleanup_free_ *t = NULL;
bool success;
- if (!(t = cgroup_bonding_to_string(cgb)))
+ t = cgroup_bonding_to_string(cgb);
+ if (!t)
return -ENOMEM;
success = dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t);
- free(t);
-
if (!success)
return -ENOMEM;
}
@@ -340,7 +337,7 @@ static int bus_unit_append_cgroup_attrs(DBusMessageIter *i, const char *property
return -ENOMEM;
LIST_FOREACH(by_unit, a, u->cgroup_attributes) {
- char *v = NULL;
+ char _cleanup_free_ *v = NULL;
bool success;
if (a->map_callback)
@@ -352,9 +349,6 @@ static int bus_unit_append_cgroup_attrs(DBusMessageIter *i, const char *property
dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &a->name) &&
dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, v ? &v : &a->value) &&
dbus_message_iter_close_container(&sub, &sub2);
-
- free(v);
-
if (!success)
return -ENOMEM;
}
@@ -619,8 +613,8 @@ const DBusObjectPathVTable bus_unit_vtable = {
};
void bus_unit_send_change_signal(Unit *u) {
- char *p = NULL;
- DBusMessage *m = NULL;
+ _cleanup_free_ char *p = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
assert(u);
@@ -637,7 +631,8 @@ void bus_unit_send_change_signal(Unit *u) {
return;
}
- if (!(p = unit_dbus_path(u)))
+ p = unit_dbus_path(u);
+ if (!p)
goto oom;
if (u->sent_dbus_new_signal) {
@@ -648,9 +643,10 @@ void bus_unit_send_change_signal(Unit *u) {
if (UNIT_VTABLE(u)->bus_invalidating_properties) {
- if (!(m = bus_properties_changed_new(p,
- UNIT_VTABLE(u)->bus_interface,
- UNIT_VTABLE(u)->bus_invalidating_properties)))
+ m = bus_properties_changed_new(p,
+ UNIT_VTABLE(u)->bus_interface,
+ UNIT_VTABLE(u)->bus_invalidating_properties);
+ if (!m)
goto oom;
if (bus_broadcast(u->manager, m) < 0)
@@ -659,13 +655,18 @@ void bus_unit_send_change_signal(Unit *u) {
dbus_message_unref(m);
}
- if (!(m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit", INVALIDATING_PROPERTIES)))
+ m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit",
+ INVALIDATING_PROPERTIES);
+ if (!m)
goto oom;
} else {
/* Send a new signal */
- if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitNew")))
+ m = dbus_message_new_signal("/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "UnitNew");
+ if (!m)
goto oom;
if (!dbus_message_append_args(m,
@@ -678,25 +679,17 @@ void bus_unit_send_change_signal(Unit *u) {
if (bus_broadcast(u->manager, m) < 0)
goto oom;
- free(p);
- dbus_message_unref(m);
-
u->sent_dbus_new_signal = true;
return;
oom:
- free(p);
-
- if (m)
- dbus_message_unref(m);
-
- log_error("Failed to allocate unit change/new signal.");
+ log_oom();
}
void bus_unit_send_removed_signal(Unit *u) {
- char *p = NULL;
- DBusMessage *m = NULL;
+ _cleanup_free_ char *p = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
assert(u);
@@ -709,10 +702,14 @@ void bus_unit_send_removed_signal(Unit *u) {
if (!u->id)
return;
- if (!(p = unit_dbus_path(u)))
+ p = unit_dbus_path(u);
+ if (!p)
goto oom;
- if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitRemoved")))
+ m = dbus_message_new_signal("/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "UnitRemoved");
+ if (!m)
goto oom;
if (!dbus_message_append_args(m,
@@ -724,18 +721,10 @@ void bus_unit_send_removed_signal(Unit *u) {
if (bus_broadcast(u->manager, m) < 0)
goto oom;
- free(p);
- dbus_message_unref(m);
-
return;
oom:
- free(p);
-
- if (m)
- dbus_message_unref(m);
-
- log_error("Failed to allocate unit remove signal.");
+ log_oom();
}
DBusHandlerResult bus_unit_queue_job(
@@ -780,7 +769,8 @@ DBusHandlerResult bus_unit_queue_job(
if ((type == JOB_START && u->refuse_manual_start) ||
(type == JOB_STOP && u->refuse_manual_stop) ||
((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop))) {
- dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id);
+ dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY,
+ "Operation refused, unit %s may be requested by dependency only.", u->id);
return bus_send_error_reply(connection, message, &error, -EPERM);
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-20 09:55:56 +0000