Hi
I am using LIBCURL to download a file, if the network connection gets broken then I have used FTP's REST comand (set in a PREQUOTE comand) to implement file resumption.
LIBCURL resumes file transfer from the specified location successfully but at the end, the CURLE_EASY_PERFORM returns the error code CURLE_PARTIAL_FILE instead of CURLE_OK.
I have intentionally used FTP REST command instead of LIBCURL's CURLOPT_RESUME_FROM option.
Have I missed any setting?

Here is my source code:

                curl_easy_setopt(handles, CURLOPT_URL, remote_url);
                curl_easy_setopt(handles, CURLOPT_WRITEDATA, downloadedData);
                curl_easy_setopt(handles, CURLOPT_WRITEFUNCTION, downloadFn);
                curl_easy_setopt(handles, CURLOPT_VERBOSE, 1L);

                result = curl_easy_perform(handles);
                
                if(result != CURLE_OK)
                {

                        struct curl_slist *paction = NULL;
                        char cmd[256]={0};
                        //get file size from local temp file
                        sprintf(cmd,"REST %d", downloadedFileSize); // resume file download from the specified location in the file on the remote side.
                        paction = curl_slist_append(paction, cmd);
                        CURLcode rvq = curl_easy_setopt(handles, CURLOPT_PREQUOTE, paction);
                        
                        result = curl_easy_perform(handles);
                }
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Received on 2014-08-14