Function nginx::BN_generate_dsa_nonce

pub unsafe extern "C" fn BN_generate_dsa_nonce(
    out: *mut BIGNUM, 
    range: *const BIGNUM, 
    priv_: *const BIGNUM, 
    message: *const c_uchar, 
    message_len: size_t, 
    ctx: *mut BN_CTX
) -> c_int