FTP
CURLOPT_PORT
HTTP proxy
# Server-side
HTTP/1.1 200 OK swsclose
Date: Tue, 09 Nov 2010 14:49:00 GMT
Server: test-server/fake
Accept-Ranges: bytes
Content-Length: 6
hello
# Client-side
ftp
proxy
http
FTP URL and with ftp_proxy environment variable set
ftp_proxy=http://%HOSTIP:%HTTPPORT/
ftp://%HOSTIP:23456/1106
# Verify data after the test has been "shot"
GET ftp://%HOSTIP:23456/1106 HTTP/1.1
Host: %HOSTIP:23456
User-Agent: curl/%VERSION
Accept: */*
Proxy-Connection: Keep-Alive