See Chapter 2, Getting Started.
int fgetfsattr(int fd, u_long type, void *buf_P); int fgetfattrflag(const char *path, secflgs_t *flags); int fsetfattrflag(int fildes, secflgs_t *flags); int getfattrflag(int fildes, secflgs_t *flags); int getfsattr(char *path, u_long type, void *buf_P, int len); int setfattrflag(const char *path, secflgs_t which, secflgs_t flags); int mldgetfattrflag(const char *path, secflgs_t *flags) int mldsetfattrflag(const char * path, secflgs_t which, secflgs_t flags))