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, libcurl
       uses strlen() to get the size or relies on the CURLOPT_READFUNCTION(3) (if used) to signal
       the end of data.

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

DEFAULT

       -1

PROTOCOLS

       This functionality affects http only

EXAMPLE

       #include <string.h> /* for strlen */

       int main(void)
       {
         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

       Added in curl 7.2

RETURN VALUE

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

SEE ALSO

       CURLOPT_POSTFIELDS(3), CURLOPT_POSTFIELDSIZE_LARGE(3)