* If LXC_INVALID_{G,U}ID is passed then the set{g,u}id() will not be called.
*/
extern int lxc_switch_uid_gid(uid_t uid, gid_t gid);
* If LXC_INVALID_{G,U}ID is passed then the set{g,u}id() will not be called.
*/
extern int lxc_switch_uid_gid(uid_t uid, gid_t gid);