sd_bus_get_name_machine_id - Retrieve a bus client's machine identity
const char *name,
sd_bus_get_name_machine_id() retrieves the D-Bus machine identity of the
machine that the bus client identified by name is running on.
Internally, it calls the GetMachineId method of the
org.freedesktop.DBus.Peer interface. The D-Bus machine identity is a
128-bit UUID. On Linux systems running systemd, this corresponds to the
contents of /etc/machine-id. On success, the machine identity is stored in
On success, this function returns a non-negative integer. On failure, it returns
a negative errno-style error code.
Returned errors may indicate the following problems:
An argument is invalid.
The bus cannot be resolved.
The bus was created in a different process.
Memory allocation failed.
These APIs are implemented as a shared library, which can be compiled and linked
to with the libsystemd pkg-config(1) file.