NAME

       CURLOPT_INFILESIZE - size of the input file to send off

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_INFILESIZE, long filesize);

DESCRIPTION

       When uploading a file to a remote site, filesize should be used to tell libcurl what the expected size of
       the input file is. This value must be passed as a long. See also CURLOPT_INFILESIZE_LARGE(3) for  sending
       files larger than 2GB.

       For uploading using SCP, this option or CURLOPT_INFILESIZE_LARGE(3) is mandatory.

       To unset this value again, set it to -1.

       Using  CURLOPT_UPLOAD(3)  to  a  HTTP/1.1  server  and  this  value set to -1, makes libcurl do a chunked
       transfer-encoded upload.

       When sending emails using SMTP, this command can be used to specify the optional SIZE parameter  for  the
       MAIL FROM command.

       This  option  does not limit how much data libcurl actually sends, as that is controlled entirely by what
       the read callback returns, but telling one value and sending a different amount may lead to errors.

DEFAULT

       Unset

PROTOCOLS

       Many

EXAMPLE

       #define FILE_SIZE 12345L

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           long uploadsize = FILE_SIZE;

           curl_easy_setopt(curl, CURLOPT_URL,
                            "ftp://example.com/destination.tar.gz");

           curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

           curl_easy_setopt(curl, CURLOPT_INFILESIZE, uploadsize);

           curl_easy_perform(curl);
         }
       }

AVAILABILITY

       SMTP support added in 7.23.0

RETURN VALUE

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

SEE ALSO

       CURLINFO_CONTENT_LENGTH_UPLOAD_T(3), CURLOPT_INFILESIZE_LARGE(3), CURLOPT_UPLOAD(3)