capng_update — update the stored capabilities settings


#include <cap-ng.h>

int capng_update(capng_act_t action, capng_type_t type,unsigned int capability);


capng_update will update the internal posix capabilities settings based on the options passed to it. The action should be eith CAPNG_DROP to set the capability bit to 0, or CAPNG_ADD to set the capability bit to 1. The operation is performed on the capability set specified in the type parameter. The values are: CAPNG_EFFECTIVE, CAPNG_PERMITTED, CAPNG_INHERITABLE, CAPNG_BOUNDING_SET. The values may be or'ed together to perform the same operation on multiple sets. The last paramter, capability, is the capability define as given in linux/capability.h.

Return Value

This returns 0 on success and -1 on failure.

See Also

capng_updatev(3), capabilities(7)


Steve Grubb

Referenced By

capng_apply(3), capng_change_id(3), capng_updatev(3).

June 2009 Red Hat Libcap-ng API