Internet file transfer program (UNIX)
ftp [-46AadefginpRtVv] [-N netrc] [-o output] [-P port] [-q quittime] [-r retry] [-s srcaddr] [-T dir,max[,inc]] [[user@]host [port]] [[user@]host:[path][/]] [file:///path] [ftp://[user[:password]@]host[:port]/path[/][;type=X]] [http://[user[:password]@]host[:port]/path] [...] ftp -u URL file [...]
Neutrino
See below.
The ftp utility is the user interface to the standard Internet File Transfer Protocol. With this utility, you can transfer files to and from a remote network site. For more information, see the NetBSD documentation at http://netbsd.gw.com/cgi-bin/man-cgi?ftp++NetBSD-5.0.
getservbyname() in the Library Reference
Based on RFC 959, RFC 1123, RFC 1738, RFC 2068, RFC 2428, and RFC 2732