NAME

       CURLOPT_UPLOAD - 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_INFILESIZE(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 an 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 have 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),