x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
SD_BUS_GET_NAME_MACHINE_IDsd_bus_get_name_machineSD_BUS_GET_NAME_MACHINE_ID(3)
NAME
sd_bus_get_name_machine_id - Retrieve a bus client's machine identity
SYNOPSIS
#include <systemd/sd-bus.h>
int sd_bus_get_name_machine_id(sd_bus *bus, const char *name,
sd_id128_t *machine);
DESCRIPTION
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 machine.
RETURN VALUE
On success, this function returns a non-negative integer. On failure,
it returns a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-EINVAL
An argument is invalid.
-ENOPKG
The bus cannot be resolved.
-ECHILD
The bus was created in a different process, library or module
instance.
-ENOMEM
Memory allocation failed.
NOTES
Functions described here are available as a shared library, which can
be compiled against and linked to with the libsystemd pkg-config(1)
file.
The code described here uses getenv(3), which is declared to be not
multi-thread-safe. This means that the code calling the functions
described here must not call setenv(3) from a parallel thread. It is
recommended to only do calls to setenv() from an early phase of the
program when no other threads have been started.
SEE ALSO
systemd(1), sd-bus(3)
systemd 254 SD_BUS_GET_NAME_MACHINE_ID(3)
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