Merge OpenBSM 1.1 from OpenBSM vendor branch to head.

OpenBSM history for imported revision below for reference.

MFC after:      2 weeks
Sponsored by:   Apple, Inc.
Obtained from:  TrustedBSD Project

OpenBSM 1.1

- Change auditon(2) parameters and data structures to be 32/64-bit architecture
  independent.  Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
  commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
  the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
  added:  au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
  definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
  generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page.  Also, make it clear that we want
  the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
  authorization events, has been added.

lib/libbsm/Makefile

@@ -18,6 +18,7 @@ SRCS=	bsm_audit.c							\
 	bsm_domain.c							\
 	bsm_errno.c							\
 	bsm_event.c							\
+	bsm_fcntl.c							\
 	bsm_flags.c							\
 	bsm_io.c							\
 	bsm_mask.c							\
@@ -41,6 +42,7 @@ MAN=	libbsm.3							\
 	au_domain.3							\
 	au_errno.3							\
 	au_event.3							\
+	au_fcntl_cmd.3							\
 	au_free_token.3							\
 	au_io.3								\
 	au_mask.3							\
@@ -100,6 +102,8 @@ MLINKS=	libbsm.3 bsm.3							\
 	au_event.3 getauevnum_r.3					\
 	au_event.3 getauevnonam.3					\
 	au_event.3 getauevnonam_r.3					\
+	au_fcntl_cmd.3 au_bsm_to_fcntl_cmd.3				\
+	au_fcntl_cmd.3 au_fcntl_cmd_t_bsm.3				\
 	au_io.3	au_fetch_tok.3						\
 	au_io.3	au_print_tok.3						\
 	au_io.3	au_read_rec.3						\