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MAC_IS_PRESENT(3)      FreeBSD Library Functions Manual	     MAC_IS_PRESENT(3)

NAME
     mac_is_present -- report whether the running system has MAC support

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <sys/mac.h>

     int
     mac_is_present(const char *policyname);

DESCRIPTION
     The mac_is_present() function determines whether the currently-running
     kernel supports MAC for a given policy or not.  If	policyname is
     non-NULL, the presence of the named policy	(e.g. ``biba'',	``mls'',
     ``te'') is	checked, otherwise the presence	of any MAC policies at all is
     checked.

RETURN VALUES
     If	the system supports the	given MAC policy, the value 1 is returned.  If
     the specified MAC policy is not supported,	the value 0 is returned.  If
     an	error occurs, the value	-1 is returned.

ERRORS
     [EINVAL]		The value of policyname	is not valid.

     [ENOMEM]		Insufficient memory was	available to allocate internal
			storage.

SEE ALSO
     mac(3), mac_free(3), mac_get(3), mac_prepare(3), mac_set(3), mac_text(3),
     mac(4), mac(9)

HISTORY
     Support for Mandatory Access Control was introduced in FreeBSD 5.0	as
     part of the TrustedBSD Project.

FreeBSD	9.2			 July 7, 2006			   FreeBSD 9.2

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY

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