CAPNG_SET_ROOTID(3)		  Libcap-ng API		     CAPNG_SET_ROOTID(3)

NAME
     capng_set_rootid - set namespace root id

SYNOPSIS
     #include <cap-ng.h>

     int capng_set_rootid(int rootid);


DESCRIPTION
     capng_set_rootid  sets  the  rootid  for file capabilities operations. Pass
     CAPNG_UNSET_ROOTID to clear a previously selected namespace root id and  go
     back to writing regular V2 file capabilities.


RETURN VALUE
     On	 success, it returns 0. It returns -1 if there is an internal error, the
     kernel does not support V3 filesystem capabilities, or an invalid rootid is
     supplied.


SEE ALSO
     capng_apply_caps_fd(3), capabilities(7)


AUTHOR
     Steve Grubb

Red Hat				   March 2026		     CAPNG_SET_ROOTID(3)