From: Bigmac Turdsplash <i8igmac@...>
Date: 2009-05-10T14:15:34+09:00
Subject: Re: File over tcp? with out using net/ftp

Robert Klemme wrote:
> On 09.05.2009 10:03, Philippe Chotard wrote:
>> Bigmac Turdsplash wrote:
>>> I have been doing a lot of google'n trying to find example code for 
>>> sending files threw the socket... I would really like to see some 
>>> exmaple code for the client and server... im clueless...
>> 
>> Hi Bigmac, here is a simple exemple you can begin with.
> 
> A few remarks:
> 
>> * Client (sends the file) :
>> require 'socket'
>> file = File.new('file.jpg')
>> fileContent = file.read
> 
> The file handle is not closed properly.  These two lines above can be
> replaced by
> 
> fileContent = File.read('file.jpg')
> 
>> sock = TCPSocket.open('localhost', 2000)
>> sock.print fileContent
> 
> I'd rather use sock.write here as this is the more low level output
> operation.
> 
>> sock.close
>> 
>> * Server (receives the file) :
>> require 'socket'
>> sock = TCPServer.open(2000)
>> con = sock.accept
>> msg = con.read
>> destFile = File.new('file-received.jpg', 'w')
>> destFile.print msg
>> destFile.close
> 
> Again, I'd rather use #write instead of #print here.  And use the block
> form of File.open.
> 
> Some more general remarks: depending on operating systems involved files
> should probably opened rather in binary mode than text mode.
> 
> Then, as files can grow quite large, your approach (i.e. reading the
> whole file into memory before writing it) is likely to fail for large
> files.  Usually a solution with small chunks is better.
> 
> Kind regards
> 
>   robert

This is vary helpful... will be easy for me to build functions off this 
example...

i have tested with this and it works with text files but thats it... 
image files and executable's dont function after being sent threw the 
socket...you said i should open files in binary mode? how can i do this 
and then after words will the files function properly?

i have been trying to get the client to receive files from the server... 
could i see one more example if its not to much to ask?
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