sd_bus_negotiate_creds  509 src/libsystemd/sd-bus/busctl.c                 r = sd_bus_negotiate_creds(bus, _SD_BUS_CREDS_ALL);
sd_bus_negotiate_creds  122 src/systemd/sd-bus.h int sd_bus_negotiate_creds(sd_bus *bus, uint64_t creds_mask);