CAPNG_GET_ROOTID(3)              Libcap-ng API             CAPNG_GET_ROOTID(3)

NAME
       capng_get_rootid - get namespace root id

SYNOPSIS
       #include <cap-ng.h>

       uid_t capng_get_rootid(void);


DESCRIPTION
       capng_get_rootid gets the rootid for file capabilities operations. The
       value is a host-endian user ID in the caller's user namespace.


RETURN VALUE
       If V3 file capabilities have not been selected, or the kernel does not
       support them, it returns CAPNG_UNSET_ROOTID. Otherwise it returns the
       namespace root user ID.


SEE ALSO
       capng_get_caps_fd(3), capabilities(7)


AUTHOR
       Steve Grubb

Red Hat                            Sept 2020               CAPNG_GET_ROOTID(3)