CAPNG_GET_ROOTID(3) Libcap-ng API CAPNG_GET_ROOTID(3) NAME capng_get_rootid - get namespace root id SYNOPSIS #include int capng_get_rootid(void); DESCRIPTION capng_get_rootid gets the rootid for capabilities operations. This is only applicable for file system operations. RETURN VALUE If the file is in the init namespace or the kernel does not support V3 file system capabilities, it returns CAPNG_UNSET_ROOTID. Otherwise it return an integer for the namespace root id. SEE ALSO capng_get_caps_fd(3), capabilities(7) AUTHOR Steve Grubb Red Hat Sept 2020 CAPNG_GET_ROOTID(3)