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.\" generated by cd2nroff 0.1 from CURLOPT_RESUME_FROM_LARGE.md
.TH CURLOPT_RESUME_FROM_LARGE 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_RESUME_FROM_LARGE \- offset to resume transfer from
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM_LARGE,
                          curl_off_t from);
.fi
.SH 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.
.SH DEFAULT
0, not used
.SH PROTOCOLS
This functionality affects all supported protocols
.SH EXAMPLE
.nf
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_off_t resume_position = 1234; /* get it somehow */
    curl_off_t file_size = 9876; /* 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);
  }
}
.fi
.SH AVAILABILITY
Added in curl 7.11.0
.SH RETURN VALUE
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLOPT_INFILESIZE_LARGE (3),
.BR CURLOPT_RANGE (3),
.BR CURLOPT_RESUME_FROM (3)
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