bus_kernel_open_bus_fd 302 src/core/busname.c n->starter_fd = bus_kernel_open_bus_fd(mode, &path); bus_kernel_open_bus_fd 1425 src/libsystemd/sd-bus/bus-kernel.c fd = bus_kernel_open_bus_fd(bus_name, &path); bus_kernel_open_bus_fd 69 src/libsystemd/sd-bus/bus-kernel.h int bus_kernel_open_bus_fd(const char *bus, char **path);