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mac_is_present_np(3)

NAME

     mac_is_present_np -- 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_np() 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 5.4			January 9, 2002 		   FreeBSD 5.4

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