NAME

       CURLOPT_POSTFIELDSIZE - size of POST data pointed to

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDSIZE, long size);

DESCRIPTION

       If  you  want  to  post  static data to the server without having libcurl do a strlen() to
       measure the data size, this option must be used. When this option is  used  you  can  post
       fully  binary  data,  which  otherwise  is  likely to fail. If this size is set to -1, the
       library will use strlen() to get the size or rely on the CURLOPT_READFUNCTION (if used) to
       signal the end of data.

       If you post more than 2GB, use CURLOPT_POSTFIELDSIZE_LARGE(3).

DEFAULT

       -1

PROTOCOLS

       HTTP

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         const char *data = "data to send";

         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

         /* size of the POST data */
         curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long) strlen(data));

         curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);

         curl_easy_perform(curl);
       }

AVAILABILITY

       Along with HTTP

RETURN VALUE

       Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_POSTFIELDS(3), CURLOPT_POSTFIELDSIZE_LARGE(3),