NAME

       CURLOPT_RESUME_FROM_LARGE - offset to resume transfer from

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM_LARGE,
                                 curl_off_t from);

DESCRIPTION

       Pass  a  curl_off_t  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 appends the source file to the remote target
       file.

DEFAULT

       0, not used

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           curl_off_t resume_position; /* get it somehow */
           curl_off_t file_size; /* get it somehow as well */

           curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com");

           /* resuming upload at this position, possibly beyond 2GB */
           curl_easy_setopt(curl, CURLOPT_RESUME_FROM_LARGE, resume_position);

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

           /* set total data amount to expect */
           curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, file_size);

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

AVAILABILITY

       Added in curl 7.11.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_INFILESIZE_LARGE(3), CURLOPT_RANGE(3), CURLOPT_RESUME_FROM(3)