curlopt_resume_from_large(3) [mojave man page]

CURLOPT_RESUME_FROM_LARGE(3)				     curl_easy_setopt options				      CURLOPT_RESUME_FROM_LARGE(3)

NAME

       CURLOPT_RESUME_FROM_LARGE - set a point 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 will
       then append the source file to the remote target file.

DEFAULT

       0, not used

PROTOCOLS

       HTTP, FTP, SFTP, FILE

EXAMPLE

       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 7.11.0

RETURN VALUE

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

SEE ALSO

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

libcurl 7.54.0							 February 03, 2016				      CURLOPT_RESUME_FROM_LARGE(3)

CURLOPT_UPLOAD(3)					     curl_easy_setopt options						 CURLOPT_UPLOAD(3)

NAME

       CURLOPT_UPLOAD - enable data upload

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_UPLOAD, long upload);

DESCRIPTION

       The  long  parameter  upload  set  to 1 tells the library to prepare for and perform an upload. The CURLOPT_READDATA(3) and CURLOPT_INFILE-
       SIZE(3) or CURLOPT_INFILESIZE_LARGE(3) options are also interesting for uploads. If the protocol is HTTP, uploading  means  using  the  PUT
       request unless you tell libcurl otherwise.

       Using  PUT  with  HTTP  1.1  implies the use of a "Expect: 100-continue" header.  You can disable this header with CURLOPT_HTTPHEADER(3) as
       usual.

       If you use PUT to a HTTP 1.1 server, you can upload data without knowing the size before starting the transfer if you use chunked encoding.
       You enable this by adding a header like "Transfer-Encoding: chunked" with CURLOPT_HTTPHEADER(3). With HTTP 1.0 or without chunked transfer,
       you must specify the size.

DEFAULT

       0, default is download

PROTOCOLS

       Most

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
	 /* we want to use our own read function */
	 curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);

	 /* enable uploading */
	 curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

	 /* specify target */
	 curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/to/newfile");

	 /* now specify which pointer to pass to our callback */
	 curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);

	 /* Set the size of the file to upload */
	 curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)fsize);

	 /* Now run off and do what you've been told! */
	 curl_easy_perform(curl);
       }

AVAILABILITY

       Always

RETURN VALUE

       Returns CURLE_OK

SEE ALSO

       CURLOPT_PUT(3), CURLOPT_READFUNCTION(3), CURLOPT_INFILESIZE_LARGE(3),

libcurl 7.54.0							 February 03, 2016						 CURLOPT_UPLOAD(3)