Function openssl_sys::EC_GROUP_get_curve_GF2m

pub unsafe extern fn EC_GROUP_get_curve_GF2m(group: *const EC_GROUP,
                                             p: *mut BIGNUM,
                                             a: *mut BIGNUM,
                                             b: *mut BIGNUM,
                                             ctx: *mut BN_CTX)
                                             -> c_int