567       COAP_RESPONSE_CLASS(pdu->hdr->code) > 2) {  in coap_send_impl()
628 		unsigned char code,  in coap_send_error()  argument
636   response = coap_new_error_response(request, code, opts);  in coap_send_error()
805   if (node->pdu->hdr->code >= 64) {  in coap_retransmit()
1032 coap_new_error_response(coap_pdu_t *request, unsigned char code,   in coap_new_error_response()  argument
1042   char *phrase = coap_response_phrase(code);  in coap_new_error_response()
1097   response = coap_pdu_init(type, code, request->hdr->id, size);  in coap_new_error_response()
1180     resp->hdr->code = COAP_RESPONSE_CODE(400);  in coap_wellknown_response()
1190       resp->hdr->code = COAP_RESPONSE_CODE(400);  in coap_wellknown_response()
1265   resp->hdr->code = COAP_RESPONSE_CODE(503);  in coap_wellknown_response()
1347   return (COAP_RESPONSE_CLASS(response->hdr->code) > 0)  in no_response()
1348     && (((1 << (COAP_RESPONSE_CLASS(response->hdr->code) - 1)) & val) > 0);  in no_response()
1352   (((Pdu)->hdr->code == COAP_REQUEST_GET) && is_wkc(Key))
1373     switch(node->pdu->hdr->code) {  in handle_request()
1409   if ((size_t)node->pdu->hdr->code - 1 <  in handle_request()
1411     h = resource->handler[node->pdu->hdr->code - 1];  in handle_request()
1455       if (observe && ((COAP_RESPONSE_CLASS(response->hdr->code) > 2)  in handle_request()
1466 	  && (response->hdr->code == 0)) {  in handle_request()
1473 	  (response->hdr->code >= 64   in handle_request()
1559       if (rcvd->pdu->hdr->code == 0)
1565       if (sent && COAP_RESPONSE_CLASS(sent->pdu->hdr->code) == 2) {
1627 	      COAP_RESPONSE_CLASS(rcvd->pdu->hdr->code),
1628 	      rcvd->pdu->hdr->code & 0x1f);