The type of operation performed on a file or process privilege set is represented by the priv_op_t type definition. Not all operations are valid for every type of privilege set. Read the privilege set descriptions in "Privilege Sets" for details.
Values are the following:
PRIV_ON - Turn the privileges asserted in the priv_set_t structure on in the specified file or process privilege set.
PRIV_OFF - Turn the privileges asserted in the priv_set_t structure off in the specified file or process privilege set.
PRIV_SET - Set the privileges in the specified file or process privilege set to the privileges asserted in the priv_set_t structure. If the structure is initialized to empty, PRIV_SET clears (sets to none) the privilege set.