CURLOPT_RESUME_FROM - offset to resume transfer from
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM, long from);
CURLOPT_RESUME_FROM(3) curl_easy_setopt options CURLOPT_RESUME_FROM(3)
NAME
CURLOPT_RESUME_FROM - offset 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
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLOPT_RESUME_FROM_LARGE(3), CURLOPT_RANGE(3), CURLOPT_INFILESIZE(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 November 26, 2021 CURLOPT_RESUME_FROM(3)