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 an 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

       This functionality affects all supported protocols

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);
         }
       }

HISTORY

       SMTP support added in 7.23.0

AVAILABILITY

       Added in curl 7.1

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)