Function nginx::ECDSA_sign_ex

pub unsafe extern "C" fn ECDSA_sign_ex(
    type_: c_int, 
    dgst: *const c_uchar, 
    dgstlen: c_int, 
    sig: *mut c_uchar, 
    siglen: *mut c_uint, 
    kinv: *const BIGNUM, 
    rp: *const BIGNUM, 
    eckey: *mut EC_KEY
) -> c_int