man security_check_context (3): check the validity of a SELinux context

SYNOPSIS

#include <selinux/selinux.h>

int security_check_context(char * con);

int security_check_context_raw(char * con);

security_check_context() returns 0 if SELinux is running and the context is valid, otherwise it returns -1.

security_check_context_raw() behaves identically to security_check_context() but does not perform context translation.