CURLOPT_INFILESIZE(3)      curl_easy_setopt options      CURLOPT_INFILESIZE(3)

NAME
       CURLOPT_INFILESIZE - set 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 _INFILESIZE_LARGE&section=3">CURLOPT_INFILESIZE_LARGE(3) for sending
       files larger than 2GB.

       For uploading using SCP, this option or _INFILESIZE_LARGE&section=3">CURLOPT_INFILESIZE_LARGE(3) is
       mandatory.

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

       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 will actually send, 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
       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
       CURLOPT_INFILESIZE_LARGE(3), CURLOPT_UPLOAD(3),

libcurl 7.77.0                 November 4, 2020          CURLOPT_INFILESIZE(3)