From: Henrik Horneber <ryco@...>
Date: 2004-10-08T03:03:23+09:00
Subject: open-uri and ftp problem

Hi!
following script (with an existing ftp address) throws an exception.

#file simple_uri
require 'open-uri'

ftp = "ftp://" # ftp address left out in this mail,
                # but one that I can acces
open( ftp ){ |f|
   f.read
}
# end of file
produces:

:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:87:in `initialize': No 
such file or directory - /dev/null (Errno::ENOENT)
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:87:in 
`open_uri_original_open'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:87:in `open'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/net/ftp.rb:497:in 
`getbinaryfile'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:600:in 
`direct_open'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:169:in `open_loop'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:164:in `catch'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:164:in `open_loop'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:134:in `open_uri'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:424:in `open'
	from h:/ruby/ruby_install/ruby/lib/ruby/1.8/open-uri.rb:85:in `open'
	from simple_uri.rb:3
 >Exit code: 1
]


RTFS'ing *cough* I find that open-uri does this:

[snip]
ftp = Net::FTP.open(self.host)
ftp.login(user, passwd)
# line 600 in open-uri
ftp.getbinaryfile(self.path, '/dev/null', Net::FTP::DEFAULT_BLOCKSIZE)
[snap]


Docs for Net::FTP#getbinaryfile say:
--
   getbinaryfile(remotefile, localfile = File.basename(remotefile), 
blocksize = DEFAULT_BLOCKSIZE) {|data| ...}

Retrieves remotefile in binary mode, storing the result in localfile. If 
a block is supplied, it is passed the retrieved data in blocksize chunks.
---


Since I am on Windows, there is no /dev/null to 'store' the file in.

any clues on what I am doing wrong?

regards,
Henrik