Problem Writing on Sockets

hi,
I wanna to read a file from hard disk and want to write in socket so the other application can read the same file from the socket. Please help me in this case. If you have some code then kindly attach it also.
Thanks

hi there!
regarding sockets have a look at this:
http://www.javaworld.com/javaworld/jw-12-1996/jw-12-sockets-p2.html
pascal

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Facing problem in creating socket in a method from an already deployed application exe while same method is working from another exe from same environment from same location.

Dll Created In: - MFC VC
6.0
Application Exe Developed In:
- VC 6.0, C# and VB.net (Applications which are using dll)
OS: - Windows XP sp2 32bit
/ Windows Server 2008 64 bit
Problem: - Facing problem in creating socket
in a method from an already deployed application exe while same method is working from another exe from same environment from same location.
Description: - We have product component which
has an exe component and from exe we invoke a method, which is defining in dll, and that dll is developed in MFC VC6.0. In the dll we have a method which downloads images from another system after making socket connection. But every time we are getting Error
code 7, it is not giving desire result while same method is working from another exe from same environment from same location. And also me dll is deployed on many systems and giving proper output from same application.
Already Attempt: - Because error is coming on
client side so what we did, we created a driver in C# which invokes same method from same environment(on client machine) using same dll and we are astonished because it worked fine there.
Kindly Suggest: -
We are not able to figure out root cause because nothing is coming in windows event logs but what I did, for finding the problem line, I wrote logs on each line and found the exact line in application exe which is not working,
actually it is not executing Create () method,
I will give snippet of the code for understanding the problem because we are not finding any kind solution for it.
Kindly assist us in understanding and fixing this problem.
Code Snippet: -
Int Initialize (LPTSTR SiteAddress, short PortId)
try
CClientTSSocket *m_pJtsSockto;
m_pJtsSockto = new CClientTSSocket;
LONG lErr = m_pJtsSockto->ConnectTS(csIPAddress,PortId);
ErrorLog (0, 0, "--------ConnectTS has been called ------------","" );
catch(...)
DWORD errorCode = GetLastError();
CString errorMessage ;
errorMessage.Format("%lu",errorCode);
ErrorLog (0, 0, "Image System", (LPTSTR)(LPCTSTR)errorMessage);
return IS_ERR_WINDOWS;
Note: -
CClientTSSocket extends CAsyncSocket
IS_ERR_WINDOWS is a macro error code which value I found 7.
LONG ConnectTS(CString strIP, UINT n_Port)
ErrorLog(0,0,"ConnectTS is calling Create [is going to call]","");
if(!Create())
ErrorLog(0,0,"ConnectTS is calling [Create not called successfully] ","");
n_Err = GetLastError();
ErrorLog(n_Err,0,"ConnectTS is calling1111111111111111Erorrrrrrrrrrrrr","");
return NET_INIT;
ErrorLog(0,0,"ConnectTS is calling2222222222222222222","");
if(!AsyncSelect(0))
n_Err = GetLastError();
return NET_INIT;
if(!Connect(strIP,n_Port))
n_Err = GetLastError();
ErrorLog(n_Err,0,"ConnectTS","");
return SERVER_NOT_CONNECTED;
Code description: -
From
int GETImage_MT() method we call Initialize() method and pass client machine IP and Port and there we call
ConnectTS() method, In this method we Create() method and finally it returns the error code as mention in macro 7.
Logs after running the program: -
--------ConnectTS has been called ------------
ConnectTS is calling Create [is going to call]
Image System
0
Note: - According to logs, problem is coming in Create method().
Here 0 is errorMessage received in catch block. And from catch block it returns macro value 7. And when we run same method individually from same machine, same environment through same dll
from different exe, it is working fine and we are facing any kind of problem. While same problem application was working properly earlier but now continuously it showing problem.
Kindly assist us to resolve the issue.

Pointer variable was already initialized; I have mention in code; kindly assist us.
Dll Created In: - MFC VC 6.0
Application Exe Developed In: - VC 6.0, C# and VB.net (Applications which are using dll)
OS: - Windows XP sp2 32bit / Windows Server 2008 64 bit
Problem: - Facing problem in creating socket
in a method from an already deployed application exe while same method is working from another exe from same environment from same location.
Description: - We have product component
which has an exe component and from exe we invoke a method, which is defining in dll, and that dll is developed in MFC VC6.0. In the dll we have a method which downloads images from another system after making socket connection. But every time we are getting
Error code 7, it is not giving desire result while same method is working from another exe from same environment from same location. And also me dll is deployed on many systems and giving proper output from same application.
Already Attempt: - Because error is coming
on client side so what we did, we created a driver in C# which invokes same method from same environment (on client machine) using same dll and we are astonished because it worked fine there.
Kindly Suggest:
- We are not able to figure out root cause because nothing is coming in windows event logs but what I did, for finding the problem line, I wrote logs on each line and found the exact line in application exe which is not
working, actually it is not executing Create () method, I will give snippet of the code for understanding
the problem because we are not finding any kind solution for it. Kindly assist us in understanding and fixing this problem.
Code Snippet: -
Int Initialize (LPTSTR SiteAddress, short PortId)
try
CClientTSSocket *m_pJtsSockto;
m_pJtsSockto = new CClientTSSocket;
LONG lErr = m_pJtsSockto->ConnectTS(csIPAddress,PortId);
ErrorLog (0, 0, "--------ConnectTS has been called ------------","" );
catch(...)
                   DWORD errorCode = GetLastError();
                   CString errorMessage ;
                   errorMessage.Format("%lu",errorCode);
                   ErrorLog (0, 0, "Image System", (LPTSTR)(LPCTSTR)errorMessage);
                   return  IS_ERR_WINDOWS;
Note: - CClientTSSocket extends CAsyncSocket
IS_ERR_WINDOWS is a macro error code which value I found 7.
LONG ConnectTS(CString strIP, UINT n_Port)
          ErrorLog(0,0,"ConnectTS is calling Create [is going to call]","");
          if(!Create())
                   ErrorLog(0,0,"ConnectTS is calling [Create not called successfully] ","");
          n_Err = GetLastError();
          ErrorLog(n_Err,0,"ConnectTS is calling1111111111111111Erorrrrrrrrrrrrr","");
                  return NET_INIT;
          ErrorLog(0,0,"ConnectTS is calling2222222222222222222","");
          if(!AsyncSelect(0))
                   n_Err = GetLastError();
                   return NET_INIT;
          if(!Connect(strIP,n_Port))
                   n_Err = GetLastError();
                   ErrorLog(n_Err,0,"ConnectTS","");
                   return SERVER_NOT_CONNECTED;
Code description: - From int GETImage_MT() method
we call Initialize() method and pass client machine IP and Port and there we call ConnectTS() method, In
this method we Create() method and finally it returns the error code as mention in macro 7.
Logs after running the program: -
--------ConnectTS has been called ------------
ConnectTS is calling Create [is going to call]
Image System  0
Note: - According to logs, problem is coming in Create method(). Here
0 is errorMessage received in catch block. And from catch block it returns macro value 7. And when we run same method individually from same machine, same environment through same dll from different exe, it is working fine and we are facing any kind of problem.
While same problem application was working properly earlier but now continuously it showing problem.
Kindly assist us to resolve the issue.

Lost all photos on my iPhoto and get the ERROR WRITING TO DISK when trying to reload from Time Machine. iPhoto cannot import your photos because there was a problem writing to the volume containing your iPHOTO LIBRARY . Looking for solution.

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catch (IOException e) {
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Should I upload my code??

my new version of code...
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Hi.
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http://forums.appleinsider.com/showthread.php?p=1372496
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               enter.setText("");
          catch(IOException e)
               display.append("\nERROR writing object");
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I am developing a client/server program with encryption and decryption at both end. While sending a message from client it should be encrypted and at the receiving end(server) it should be decrypted and vice versa.
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import java.io.*;
import java.net.*;
import java.security.*;
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import javax.crypto.*;
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                    theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static BufferedInputStream getNetInStream(InputStream in) throws Exception
          // register the provider that implements the algorithm
          Provider sunJce = new com.sun.crypto.provider.SunJCE( );
          Security.addProvider(sunJce);
          // create a key
          byte[] desKeyDataDec = "This encryption can not be decrypted".getBytes();
          DESKeySpec desKeySpecDec = new DESKeySpec(desKeyDataDec);
          SecretKeyFactory keyFactoryDec = SecretKeyFactory.getInstance("DES");
          SecretKey desKeyDec = keyFactoryDec.generateSecret(desKeySpecDec);
          // use Data Encryption Standard
          Cipher desDec = Cipher.getInstance("DES");
          desDec.init(Cipher.DECRYPT_MODE, desKeyDec);
          CipherInputStream cin = new CipherInputStream(in, desDec);
          BufferedInputStream bin=new BufferedInputStream(new GZIPInputStream(cin));
          return bin;
clientSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class clientSocketDemo
     public static void main(String args[])
          try
               Socket theConnection=new Socket("localhost",2000);
               System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
               System.out.println("Connecting to : "+theConnection.getInetAddress());
               //Output starts from here
               OutputStream out=getNetOutStream(theConnection.getOutputStream());
               out.write("Please Welcome me\n".getBytes());
               out.flush();
               out.close();
               theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static OutputStream getNetOutStream(OutputStream out) throws Exception
          // register the provider that implements the algorithm
          Provider sunJce = new com.sun.crypto.provider.SunJCE( );
          Security.addProvider(sunJce);
          // create a key
          byte[] desKeyDataEnc = "This encryption can not be decrypted".getBytes();
          DESKeySpec desKeySpecEnc = new DESKeySpec(desKeyDataEnc);
          SecretKeyFactory keyFactoryEnc = SecretKeyFactory.getInstance("DES");
          SecretKey desKeyEnc = keyFactoryEnc.generateSecret(desKeySpecEnc);
          // use Data Encryption Standard
          Cipher desEnc = Cipher.getInstance("DES");
          desEnc.init(Cipher.ENCRYPT_MODE, desKeyEnc);
          CipherOutputStream cout = new CipherOutputStream(out, desEnc);
          OutputStream outstream=new BufferedOutputStream(new GZIPOutputStream(cout));
          return outstream;
Here is client/server pair in which i use both encrypting outpustream and decrypting inputstream at both ends.
serverSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class serverSocketDemo
     private Cipher desEnc,desDec;
     serverSocketDemo()
          try
               // register the provider that implements the algorithm
               Provider sunJce = new com.sun.crypto.provider.SunJCE( );
               Security.addProvider(sunJce);
               // create a key
               byte[] desKeyData = "This encryption can not be decrypted".getBytes();
               DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
               SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
               SecretKey desKey = keyFactory.generateSecret(desKeySpec);
               desEnc = Cipher.getInstance("DES");
               desEnc.init(Cipher.ENCRYPT_MODE, desKey);
               desDec = Cipher.getInstance("DES");
               desDec.init(Cipher.DECRYPT_MODE, desKey);
          catch (javax.crypto.NoSuchPaddingException e)
               System.out.println(e);
          catch (java.security.NoSuchAlgorithmException e)
               System.out.println(e);
          catch (java.security.InvalidKeyException e)
               System.out.println(e);
          catch(Exception e)
               System.out.println(e);
          startProcess();
     public void startProcess()
          try
               ServerSocket server=new ServerSocket(2000);
               while (true)
                    final Socket theConnection=server.accept();
                    System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
                    System.out.println("Connection request from : "+theConnection.getInetAddress());
                    Thread input=new Thread()
                         public void run()
                              try
                                   //Input starts from here
                                   Reader in=new InputStreamReader(new BufferedInputStream(new CipherInputStream(theConnection.getInputStream(), desDec)),"ASCII");
                                   StringBuffer strbuf=new StringBuffer();
                                   int c;
                                   while (true)
                                        c=in.read();
                                        if(c=='\n'|| c==-1)
                                             break;
                                        strbuf.append((char)c);
                                   String str=strbuf.toString();
                                   System.out.println("Message from Client : "+str);
                              catch(Exception e)
                                   System.out.println("Error caught inside input Thread : "+e);
                    input.start();
                    Thread output=new Thread()
                         public void run()
                              try
                                   //Output starts from here
                                   OutputStream out=new BufferedOutputStream(new CipherOutputStream(theConnection.getOutputStream(), desEnc));
                                   System.out.println("it will not be printed");
                                   out.write("You are Welcome\n".getBytes());
                                   out.flush();
                              catch(Exception e)
                                   System.out.println("Error caught inside output Thread : "+e);
                    output.start();
                    try
                         output.join();
                         input.join();
                    catch(Exception e)
                    theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static void main(String args[])
          serverSocketDemo server=new serverSocketDemo();
clientSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class clientSocketDemo
     private Cipher desEnc,desDec;
     clientSocketDemo()
          try
               // register the provider that implements the algorithm
               Provider sunJce = new com.sun.crypto.provider.SunJCE( );
               Security.addProvider(sunJce);
               // create a key
               byte[] desKeyData = "This encryption can not be decrypted".getBytes();
               DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
               SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
               SecretKey desKey = keyFactory.generateSecret(desKeySpec);
               desEnc = Cipher.getInstance("DES");
               desDec = Cipher.getInstance("DES");
               desEnc.init(Cipher.ENCRYPT_MODE, desKey);
               desDec.init(Cipher.DECRYPT_MODE, desKey);
          catch (javax.crypto.NoSuchPaddingException e)
               System.out.println(e);
          catch (java.security.NoSuchAlgorithmException e)
               System.out.println(e);
          catch (java.security.InvalidKeyException e)
               System.out.println(e);
          catch(Exception e)
               System.out.println(e);
          startProcess();
     public void startProcess()
          try
               final Socket theConnection=new Socket("localhost",2000);
               System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
               System.out.println("Connecting to : "+theConnection.getInetAddress());
               Thread output=new Thread()
                    public void run()
                         try
                              //Output starts from here
                              OutputStream out=new BufferedOutputStream(new CipherOutputStream(theConnection.getOutputStream(), desEnc));
                              out.write("Please Welcome me\n".getBytes());
                              out.flush();
                         catch(Exception e)
                              System.out.println("Error caught inside output thread : "+e);
               output.start();
               Thread input=new Thread()
                    public void run()
                         try
                              //Input starts from here
                              Reader in=new InputStreamReader(new BufferedInputStream(new CipherInputStream(theConnection.getInputStream(), desDec)),"ASCII");
                              System.out.println("it will not be printed");
                              StringBuffer strbuf=new StringBuffer();
                              int c;
                              while (true)
                                   c=in.read();
                                   if(c=='\n' || c==-1)
                                        break;
                                   strbuf.append((char)c);
                              String str=strbuf.toString();
                              System.out.println("Message from Server : "+str);
                         catch(Exception e)
                              System.out.println("Error caught inside input Thread : "+e);
               input.start();
               try
                    output.join();
                    input.join();
               catch(Exception e)
               theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static void main(String args[])
          clientSocketDemo client=new clientSocketDemo();
**** I know that the CInput tries to read some header stuff thats why i used two threads for input and output.
Waiting for the reply.
Thank you.

Do not ever post your code unless requested to. It is very annoying.
Try testing what key is being used. Just to test this out, build a copy of your program and loop the input and outputs together. Have them print the data stream onto the screen or a text file. Compare the 1st Output and the 2nd Output and the 1st Input with the 2nd Input and then do a static test of the chipher with sample data (same data which was outputted), then do another cipher test with the ciphertext created by the first test.
Everything should match - if it does not then follow the steps below.
Case 1: IO Loops do not match
Case 2: IO Loops match, but ciphertext 1st run does not match loop
Case 3: IO Loops match, 1st ciphertext 1st run matches, but 2nd run does not
Case 4: IO Loops match, both chiphertext runs do not match anything
Case 5: Ciphertext runs do not match eachother when decrypted correctly (outside of the test program)
Problems associated with the cases above:
Case 1: Private Key is changing on either side (likely the sender - output channel)
Case 2: Public Key is changing on either side (likely the sender - output channel)
Case 3: Private Key changed on receiver - input channel
Case 4: PKI failure, causing private key and public key mismatch only after a good combination was used
Case 5: Same as Case 4

Problem writing to file

I'm working on a program that asks for the users name. after that its supposed to pull the current date and time and print that into a file along with the users name.
my problem is when i open the .txt file i get several characters i dont recogize and then my name at the end.
Thanks for the help:
public class CIS314Exam1MarkWellsFrame
private ObjectOutputStream output;
public void openFile()
try
output = new ObjectOutputStream(new FileOutputStream("guestlog.txt"));
catch(IOException ioException)
JOptionPane.showMessageDialog(null, "You do not have access to this file");
System.exit(1);
public void insertName()
try
Date today = new Date();
//utput.writeObject(today);
//String name = JOptionPane.showInputDialog("Enter Name");
String name = "Mark";
output.writeObject(name);
catch(IOException ioException)
JOptionPane.showMessageDialog(null, "Error writing to file");
return;
public void closeFile()
try
if(output !=null)
output.close();
catch(IOException ioException)
JOptionPane.showMessageDialog(null, "Error Closing File");
System.exit(1);
System.exit(0);
}

This isnt the correct forum for this question. Use tags when posting code. Post the contents of the .txt file and what unexpected characters you are getting.

Problem writing meta data changes in xmp in spite of enabled settings

Dear Adobe Community
After struggling with this for two full days and one night, you are my last hope before I give up and migrate to Aperture instead.
I am having problems with Lightroom 5 writing meta data changes into xmp and including development settings in JPEG, inspite of having ticked all three boxed in catalog settings.
In spite of having checked all boxes, Lightroom refused to actually perform the actions. I allowed the save action to take a lot longer than the saving indicator showed was needed, but regardless of this no edits made in the photo would be visible outside Lightroom. I also tried unticking and ticking and restarting my compute.
Therefore, I uninstalled the program and the reinstalled it again (the trial version both times). I added about 5000 images to Lightroom (i.e. referenced). After having made a couple of changes for one photo in development settings, I tried closing the program. However, then this message was then displayed:
I left the program open and running for about 5-5 hours, then tried closing the program, but the message still came up so I closed the program and restarted the computer. I tried making changes to another photo, saving and then closing and the same message comes up. The program also becomes unresponsive, and of course still no meta data has been saved to the photo, i.e. when opening it outside Lightroom, the edits of the photos is not shown.
What do do? I would greatly appreciate any insights, since I have now completely hit the wall.
Oh yes, that´s right:
What version of Lightroom? Include the minor version number (e.g., Lighroom 4 with the 4.1 update).
Lightroom 5.3
Have you installed the recent updates? (If not, you should. They fix a lot of problems.)
I installed the program two days ago and then for the second time today.
What operating system? This should include specific minor version numbers, like "Mac OSX v10.6.8"---not just "Mac".
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36
What kind(s) of image file(s)? When talking about camera raw files, include the model of camera.
JPEG
If you are getting error message(s), what is the full text of the error message(s)?
Please see screen dumps above
What were you doing when the problem occurred?
Trying to save metadata + trying to open images that it seemed I had saved meta data to
Has this ever worked before?
No
What other software are you running?
For some time Chrome, Firefox, Itunes. Then I closed all other software.
Tell us about your computer hardware. How much RAM is installed? How much free space is on your system (C:) drive?
4 GB 1333 MHz DDR3
Has this ever worked before? If so, do you recall any changes you made to Lightroom, such as adding Plug-ins, presets, etc.? Did you make any changes to your system, such as updating hardware, printers or drivers, or installing/uninstalling any programs?
No, the problems have been there all the time.

AnnaK wrote:
Hi Rob
I think you succeeded in partly convincing me. : ) I think I will go for a non-destrucitve program like LR when I am back in Sweden, but will opt for a destructive one for now. Unfortuntately, I have an Olypmus- so judging from your comment NX2 might not be for me.
Hi AnnaK (see below).
AnnaK wrote:
My old snaps are JPEG, but I recently upgraded to an Olympus e-pl5 and will notw (edited by RC) start shooting RAW.
Note: I edited your statement: I assume you meant now instead of not.
If you start shooting raw, then you're gonna need a raw processor, regardless of what the next step in the process will be. And there are none better for this purpose than Lightroom, in my opinion. As has been said, you can export those back to Lightroom as jpeg then delete the raws, if storage is a major issue, or convert to Lossy DNG. Both of those options assume you're willing to adopt a non-destructive workflow, from there on out anyway (not an absolute requirement, but probably makes the most sense). It's generally a bad idea to edit a jpeg then resave it as a jpeg, because quality gets progressively worse every time you do that. Still, it's what I (and everybody else) did for years before Lightroom, and if you want to adopt such a workflow then yeah: you'll need a destructive editor that you like (or as I said, you can continue to use Lightroom in that fashion, by exporting new jpegs and deleting originals - really? that's how you want to go???). Reminder: NX2 works great on jpegs, and so is still very much a candidate in my mind - my biggest reservation in recommending it is uncertainty of it's future (it's kinda in limbo right now).
AnnaK wrote:
Rob Cole wrote:
There is a plugin which will automatically delete originals upon export, but relying on plugins makes for additional complication too.
Which plugin is this?
Exportant (the option is invisible by default, but can be made visible by editing a text config file). To be clear: I do not recommend using Exportant for this purpose until after you've got everything else setup and functioning, and even then it would be worth reconsidering.
AnnaK wrote:
Rob Cole wrote:
What I do is auto-publish to all consumption destinations after each round of edits, but that takes more space.
How do you do this?
Via Publish Services.
PS - I also use features in 'Publish Service Assistant' and 'Change Manager' plugins (for complete automation), but most people just select publish collections and/or sets and click 'Publish' - if you only have a few collections/services it's convenient enough.
AnnaK wrote:
Would you happen to have any tips on which plugins I may want to use together with Photoshop Elements?
No - sorry, maybe somebody else does.
Did I get 'em all?
Rob

Problem Writing on Sockets

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