Function nginx::DH_meth_get_bn_mod_exp

pub unsafe extern "C" fn DH_meth_get_bn_mod_exp(
    dhm: *const DH_METHOD
) -> Option<unsafe extern "C" fn(dhm: *const DH, arg1: *mut BIGNUM, arg2: *const BIGNUM, arg3: *const BIGNUM, arg4: *const BIGNUM, arg5: *mut BN_CTX, arg6: *mut BN_MONT_CTX) -> c_int>