X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-bus%2Fbus-control.c;h=a4dc9bf511e92584a1dc81c0e1cc4267e5410755;hb=9b29bb6853987bf6fef21531f69864fdfb39eb9a;hp=185f77c968d2873e67b1ed5612dc18c63cf2be20;hpb=5b7d4c1c164d91b8c28c3dcd3921ad9863953ffa;p=elogind.git
diff --git a/src/libsystemd-bus/bus-control.c b/src/libsystemd-bus/bus-control.c
index 185f77c96..a4dc9bf51 100644
--- a/src/libsystemd-bus/bus-control.c
+++ b/src/libsystemd-bus/bus-control.c
@@ -19,6 +19,10 @@
along with systemd; If not, see .
***/
+#ifdef HAVE_VALGRIND_MEMCHECK_H
+#include
+#endif
+
#include
#include
@@ -62,12 +66,15 @@ int sd_bus_request_name(sd_bus *bus, const char *name, int flags) {
size_t l;
l = strlen(name);
- n = alloca(offsetof(struct kdbus_cmd_name, name) + l + 1);
+ n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
n->name_flags = flags;
- n->id = 0;
memcpy(n->name, name, l+1);
+#ifdef HAVE_VALGRIND_MEMCHECK_H
+ VALGRIND_MAKE_MEM_DEFINED(n, n->size);
+#endif
+
r = ioctl(bus->input_fd, KDBUS_CMD_NAME_ACQUIRE, n);
if (r < 0)
return -errno;
@@ -113,12 +120,13 @@ int sd_bus_release_name(sd_bus *bus, const char *name) {
size_t l;
l = strlen(name);
- n = alloca(offsetof(struct kdbus_cmd_name, name) + l + 1);
+ n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
- n->name_flags = 0;
- n->id = 0;
memcpy(n->name, name, l+1);
+#ifdef HAVE_VALGRIND_MEMCHECK_H
+ VALGRIND_MAKE_MEM_DEFINED(n, n->size);
+#endif
r = ioctl(bus->input_fd, KDBUS_CMD_NAME_RELEASE, n);
if (r < 0)
return -errno;
@@ -336,3 +344,35 @@ int bus_remove_match_internal(sd_bus *bus, const char *match) {
"s",
match);
}
+
+int sd_bus_get_owner_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ const char *mid;
+ int r;
+
+ if (!bus)
+ return -EINVAL;
+ if (!name)
+ return -EINVAL;
+
+ if (streq_ptr(name, bus->unique_name))
+ return sd_id128_get_machine(machine);
+
+ r = sd_bus_call_method(bus,
+ name,
+ "/",
+ "org.freedesktop.DBus.Peer",
+ "GetMachineId",
+ NULL,
+ &reply,
+ NULL);
+
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(reply, "s", &mid);
+ if (r < 0)
+ return r;
+
+ return sd_id128_from_string(mid, machine);
+}