systemd sd_bus_get_name_creds 3 sd_bus_get_name_creds 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 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_pid3 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_unref3. 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(). On success, these functions return a non-negative integer. On failure, they return a negative errno-style error code. 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. sd_bus_get_name_creds() and sd_bus_get_owner_creds() were added in version 221. systemd1 sd-bus3 sd_bus_creds_unref3