--- name: "radcli_dae_reply_error" section: "3" platform: "linux" package: "radcli" version: "2.0.1-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/radcli_dae_reply_error" --- # radcli\_dae\_reply\_error(3) Answer a request with a NAK carrying the given Error-Cause. ## NAME radcli\_dae\_reply\_error - Answer a request with a NAK carrying the given Error-Cause. ## SYNOPSIS ``` #include int radcli_dae_reply_error( radcli_dae_request *req, uint32_t error_cause ); ``` ## DESCRIPTION ## PARAMETERS - **req** a request passed to a radcli\_dae\_handler, not yet replied to. - **error\_cause** a radcli\_error\_cause value (e.g. RADCLI\_ERROR\_SESSION\_CONTEXT\_NOT\_FOUND), encoded as attribute 101. ## RETURN VALUE 0 once the reply is handed to the network, -1 on failure (req is NULL, already replied to, or the reply could not be sent). ## SEE ALSO [*radcli\_ctx\_dispatch*(3)](/radcli_ctx_dispatch/3.md), [*radcli\_ctx\_get\_poll*(3)](/radcli_ctx_get_poll/3.md), [*radcli\_dae\_free*(3)](/radcli_dae_free/3.md), [*radcli\_dae\_new*(3)](/radcli_dae_new/3.md), [*radcli\_dae\_process*(3)](/radcli_dae_process/3.md), [*radcli\_dae\_reply*(3)](/radcli_dae_reply/3.md), [*radcli\_dae\_reply\_to\_buffer*(3)](/radcli_dae_reply_to_buffer/3.md), [*radcli\_dae\_req\_attrs*(3)](/radcli_dae_req_attrs/3.md), [*radcli\_dae\_req\_code*(3)](/radcli_dae_req_code/3.md), [*radcli\_dae\_req\_framed\_ip*(3)](/radcli_dae_req_framed_ip/3.md), [*radcli\_dae\_req\_nas\_port*(3)](/radcli_dae_req_nas_port/3.md), [*radcli\_dae\_req\_session\_id*(3)](/radcli_dae_req_session_id/3.md), [*radcli\_dae\_req\_user\_name*(3)](/radcli_dae_req_user_name/3.md), [*radcli\_dae\_request\_free*(3)](/radcli_dae_request_free/3.md), [*radcli\_dae\_set\_handler*(3)](/radcli_dae_set_handler/3.md), [*radcli\_dae\_start*(3)](/radcli_dae_start/3.md)