* @param data pointer to a TIDS_INSTANCE
* @return pointer to the response string or null to send no response
*/
-static char *tids_req_cb(TALLOC_CTX *mem_ctx, const char *req_str, void *data)
+static TR_MSG *tids_req_cb(TALLOC_CTX *mem_ctx, TR_MSG *mreq, void *data)
{
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
TIDS_INSTANCE *tids = talloc_get_type_abort(data, TIDS_INSTANCE);
- TR_MSG *mreq = NULL;
TID_REQ *req = NULL;
TID_RESP *resp = NULL;
- char *resp_str = NULL;
+ TR_MSG *resp_msg = NULL; /* this is the return value */
int rc = 0;
- mreq = tr_msg_decode(NULL, req_str, strlen(req_str)); // allocates memory on success!
- if (mreq == NULL) {
- tr_debug("tids_req_cb: Error decoding request.");
- return NULL;
- }
-
/* If this isn't a TID Request, just drop it. */
if (mreq->msg_type != TID_REQUEST) {
- tr_msg_free_decoded(mreq);
tr_debug("tids_req_cb: Not a TID request, dropped.");
- return NULL;
+ goto cleanup;
}
/* Get a handle on the request itself. Don't free req - it belongs to mreq */
req = tr_msg_get_req(mreq);
- /* Allocate a response structure and populate common fields. The resp is in req's talloc context,
- * which will be cleaned up when mreq is freed. */
- resp = tids_create_response(req, req);
+ /* Allocate a response message */
+ resp_msg = talloc(tmp_ctx, TR_MSG);
+ if (resp_msg == NULL) {
+ /* We cannot create a response message, so all we can really do is emit
+ * an error message and return. */
+ tr_crit("tids_req_cb: Error allocating response message.");
+ goto cleanup;
+ }
+
+ /* Allocate a response structure and populate common fields. Put it in the
+ * response message's talloc context. */
+ resp = tids_create_response(resp_msg, req);
if (resp == NULL) {
/* If we were unable to create a response, we cannot reply. Log an
* error if we can, then drop the request. */
- tr_msg_free_decoded(mreq);
tr_crit("tids_req_cb: Error creating response structure.");
- return NULL;
+ resp_msg = NULL; /* the contents are in tmp_ctx, so they will still be cleaned up */
+ goto cleanup;
}
+ /* Now officially assign the response to the message. */
+ tr_msg_set_resp(resp_msg, resp);
/* Handle the request and fill in resp */
rc = tids_handle_request(tids, req, resp);
/* Fall through, to send the response, either way */
}
- /* Convert the completed response into an encoded response */
- resp_str = tids_encode_response(mem_ctx, resp);
+ /* put the response message in the caller's context */
+ talloc_steal(mem_ctx, resp_msg);
- /* Finished; free the request and return */
- tr_msg_free_decoded(mreq); // this frees req and resp, too
- return resp_str;
+cleanup:
+ talloc_free(tmp_ctx);
+ return resp_msg;
}
TIDS_INSTANCE *tids_new(TALLOC_CTX *mem_ctx)