Function nginx::DSA_meth_set_mod_exp

pub unsafe extern "C" fn DSA_meth_set_mod_exp(
    dsam: *mut DSA_METHOD, 
    mod_exp: Option<unsafe extern "C" fn(arg1: *mut DSA, arg2: *mut BIGNUM, arg3: *const BIGNUM, arg4: *const BIGNUM, arg5: *const BIGNUM, arg6: *const BIGNUM, arg7: *const BIGNUM, arg8: *mut BN_CTX, arg9: *mut BN_MONT_CTX) -> c_int>
) -> c_int