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Full Discussion: File Transfer over Sockets
Top Forums Programming File Transfer over Sockets Post 302273728 by mcnikolas on Monday 5th of January 2009 03:46:28 PM
Old 01-05-2009
File Transfer over Sockets
Hello there !!!!!!!!! I got some problems trying to transfer a file through sockets.

The Server must be in Java and the Client in C++

I came up with this code for the server :

BufferedInputStream input;
BufferedOutputStream output;
public void send_data() throws IOException
{
File transfer = new File("tux.png");
InputStream in = new FileInputStream(transfer);


byte[] buff = new byte[sock.getSendBufferSize()];
int bytesRead = 0;

System.out.println(transfer.length()+ " bytes");

while((bytesRead = in.read(buff))>0)
{
output.write(buff,0,bytesRead);
}
in.close();
}
public void recv_data() throws IOException
{
InputStream input = sock.getInputStream();
FileOutputStream wr = new FileOutputStream(new File("Test"));
byte[] outBuffer = new byte[sock.getReceiveBufferSize()];
int bytesReceived = 0;

while((bytesReceived = input.read(outBuffer))>0)
{
wr.write(outBuffer,0,bytesReceived);
}
wr.close();


}



But i can not do the client side in C++. Can anybody give an example??
If the code a give you is very confusing , it would be OK to give a very simple example of how to send/recv a file from/to client(C++)/server/(Java)


Thank you in advance.
 

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LEARN ABOUT SUSE

clientlib

CLIENTLIB(3)						     Library Functions Manual						      CLIENTLIB(3)

NAME

       clientlib - NNTP clientlib part of InterNetNews library

SYNOPSIS

       extern FILE	    *ser_rd_fp;
       extern FILE	    *ser_wr_fp;
       extern char	    ser_line[];

       char *
       getserverbyfile(file)
	   char 	    *file;

       int
       server_init(host)
	   char 	    *host;

       int
       handle_server_response(response, host)
	   int		    reponse;
	   char 	    *host;

       void
       put_server(text)
	   char 	    *text;

       int
       get_server(buff, buffsize)
	   char 	    *buff;
	   int		    buffsize;

       void
       close_server()

DESCRIPTION

       The  routines  described  in this manual page are part of the InterNetNews library, libinn(3).  They are replacements for the ``clientlib''
       part of the NNTP distribution, and are intended to be used in building programs like rrn.

       Getserverbyfile calls GetConfigValue to get the name of the local NNTP server.  It returns a pointer to static space.  The  file  parameter
       is ignored.

       Server_init  opens a connect to the NNTP server at the specified host.  It returns the server's response code or -1 on error.  If a connec-
       tion was made, then ser_rd_fp and ser_wr_fp can be used to read from and write to the server, respectively, and ser_line will  contain  the
       server's response.  Ser_line can also be used in other routines.

       Handle_server_response  decodes	the  response,	which comes from the server on host.  If the client is authorized, it returns 0.  A client
       that is only allowed to read is authorized, but handle_server_response will print a message on the standard output.  If the client  is  not
       authorized to talk to the server, then a message is printed and the routine returns -1.

       Put_server sends the text in buff to the server, adding the necessary NNTP line terminators, and flushing the I/O buffer.

       Get_server reads a line of text from the server into buff, reading at most buffsize characters.	Any trailing 
 terminators are stripped
       off.  Get_server returns -1 on error.

       Close_server sends a ``quit'' command to the server and closes the connection.

HISTORY

       Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews.  This is revision 42, dated 1997-08-04.

SEE ALSO

       libinn(3).

																      CLIENTLIB(3)
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