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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 14.1-RELEASE-p8 July 7, 2006 FreeBSD 14.1-RELEASE-p8