* Fixed endianness issue introduced by IPV6 patch, which prevented
active connections to be established via PORT mechanism.
FTP server always expects to see the port broken down into bytes
in network byte order, so the transformation to host byte order is
only needed when using EPRT.
* Some IPV4 FTP servers and FTP ALGs / NATs with connection tracking
become confused when you try to use EPSV or EPRT instead of PASV or
PORT respectively.
This commit changes current FTP connection scheme: if we deal with
an IPV4 host, instead of first trying to use EPRT, first try to
use PORT and only if it fails try EPRT as a fallback.
Signed-off-by: Yury V. Zaytsev <yury@shurup.com>
a402ebc981