sd_bus_get_name_creds

systemd

sd_bus_get_owner_creds

Query bus client credentials

#include <systemd/sd-bus.h>

int

sd_bus_get_name_creds

sd_bus *

bus

const char *

name

uint64_t

mask

sd_bus_creds **

creds

int

sd_bus_get_owner_creds

sd_bus *

bus

uint64_t

mask

sd_bus_creds **

creds

Description

sd_bus_get_name_creds() queries the credentials of the bus client identified by name. The mask parameter is a combo of SD_BUS_CREDS_* flags that indicate which credential info the caller is interested in. See sd_bus_creds_new_from_pid(3) for a list of possible flags. On success, creds contains a new sd_bus_creds instance with the requested information. Ownership of this instance belongs to the caller and it should be freed once no longer needed by calling sd_bus_creds_unref(3).

sd_bus_get_owner_creds() queries the credentials of the creator of the given bus. The mask and creds parameters behave the same as in sd_bus_get_name_creds().

Return Value

On success, these functions return a non-negative integer. On failure, they return 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.

-EPERM
The bus has already been started.

-ECHILD
The bus was created in a different process, library or module instance.

-ENOMEM
Memory allocation failed.

History

sd_bus_get_name_creds() and sd_bus_get_owner_creds() were added in version 221.