MAC_IS_PRESENT_NP (3) | C library functions | Unix Manual Pages | :man▋
mac_is_present_np - report whether the running system has MAC support
.In sys/mac.h int mac_is_present "const char *policyname"
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.
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.
| || The value of policyname is not valid. |
| || Insufficient memory was available to allocate internal storage. |
mac(3), mac_free(3), mac_get(3), mac_prepare(3), mac_set(3), mac_text(3), mac(4), mac(9)