Provided by: libcurl4-doc_7.55.1-1ubuntu2_all bug

NAME

       CURLOPT_RESUME_FROM - set a point to resume transfer from

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM, long from);

DESCRIPTION

       Pass  a  long  as  parameter.  It contains the offset in number of bytes that you want the
       transfer to start from. Set this option to 0 to make the transfer start from the beginning
       (effectively  disabling resume). For FTP, set this option to -1 to make the transfer start
       from the end of the target file (useful to continue an interrupted upload).

       When doing uploads with FTP, the resume position is where in the local/source file libcurl
       should try to resume the upload from and it will then append the source file to the remote
       target file.

       If you need to resume a transfer beyond the 2GB  limit,  use  CURLOPT_RESUME_FROM_LARGE(3)
       instead.

DEFAULT

       0, not used

PROTOCOLS

       HTTP, FTP, SFTP, FILE

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com");

         /* resume upload at byte index 200 */
         curl_easy_setopt(curl, CURLOPT_RESUME_FROM, 200L);

         /* ask for upload */
         curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

         /* set total data amount to expect */
         curl_easy_setopt(curl, CURLOPT_INFILESIZE, size_of_file);

         /* Perform the request */
         curl_easy_perform(curl);
       }

AVAILABILITY

       Always

RETURN VALUE

       Returns CURLE_OK

SEE ALSO

       CURLOPT_RESUME_FROM_LARGE(3), CURLOPT_RANGE(3), CURLOPT_INFILESIZE(3),