buf = talloc_realloc(network, buf, char, len + dns_conf_len + 1);
memcpy(buf + len, dns_conf, dns_conf_len);
len += dns_conf_len;
buf = talloc_realloc(network, buf, char, len + dns_conf_len + 1);
memcpy(buf + len, dns_conf, dns_conf_len);
len += dns_conf_len;