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23 .TH CURLOPT_RESUME_FROM 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
25 CURLOPT_RESUME_FROM \- set a point to resume transfer from
27 #include <curl/curl.h>
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM, long from);
31 Pass a long as parameter. It contains the offset in number of bytes that you
32 want the transfer to start from. Set this option to 0 to make the transfer
33 start from the beginning (effectively disabling resume). For FTP, set this
34 option to -1 to make the transfer start from the end of the target file
35 (useful to continue an interrupted upload).
37 When doing uploads with FTP, the resume position is where in the local/source
38 file libcurl should try to resume the upload from and it will then append the
39 source file to the remote target file.
41 If you need to resume a transfer beyond the 2GB limit, use
42 \fICURLOPT_RESUME_FROM_LARGE(3)\fP instead.
49 CURL *curl = curl_easy_init();
51 curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com");
53 /* resume upload at byte index 200 */
54 curl_easy_setopt(curl, CURLOPT_RESUME_FROM, 200L);
57 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
59 /* set total data amount to expect */
60 curl_easy_setopt(curl, CURLOPT_INFILESIZE, size_of_file);
62 /* Perform the request */
63 curl_easy_perform(curl);
71 .BR CURLOPT_RESUME_FROM_LARGE "(3), " CURLOPT_RANGE "(3), "
72 .BR CURLOPT_INFILESIZE "(3), "