Function bssl_sys::RSA_sign_pss_mgf1

pub unsafe extern "C" fn RSA_sign_pss_mgf1(
    rsa: *mut RSA,
    out_len: *mut usize,
    out: *mut u8,
    max_out: usize,
    digest: *const u8,
    digest_len: usize,
    md: *const EVP_MD,
    mgf1_md: *const EVP_MD,
    salt_len: c_int
) -> c_int