is_selinux_enabled − check whether SELinux is enabled
is_selinux_mls_enabled − check whether SELinux is enabled for (Multi Level Security) MLS
#include <selinux/selinux.h>
int is_selinux_enabled();
int is_selinux_mls_enabled();
is_selinux_enabled() returns 1 if SELinux is running or 0 if it is not.
is_selinux_mls_enabled() returns 1 if SELinux is capable of running in MLS mode or 0 if it is not. To determine the policy in use on the system, use selinux_getpolicytype(3).
selinux(8)