CURLOPT_RESUME_FROM(3)     curl_easy_setopt options     CURLOPT_RESUME_FROM(3)

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  CUR-
       LOPT_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),

libcurl 7.54.0                 February 03, 2016        CURLOPT_RESUME_FROM(3)