C / C++ / MFC

Re: sockets - chat server console program from articles - in mfc with error

4-Oct-08 7:05

I am trying to port a console chat server program to mfc
from the articles

when I declare
///////////////////////
SOCKET m_SClient;
SOCKET m_SListenClient; // socket listening for client calls
/////////////////////

I get the following, am i missing an include

unresolved external symbol __imp__listen@8
symbol __imp__bind@12
d external symbol __imp__socket@12
unresolved external symbol __imp__htons@4
unresolved external symbol __imp__WSAStartup@8
unresolved external symbol __imp__accept@12
unresolved external symbol __imp__send@16
unresolved external symbol __imp__recv@16
LNK1120: 8 unresolved externals

CPallini4-Oct-08 7:11

Re: sockets - chat server console program from articles - in mfc with error

4-Oct-08 7:11

As stated by the documentation (see, for instance, [^]), you must link with ws2_32.lib library.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

simon alec smith4-Oct-08 7:27

Re: sockets - chat server console program from articles - in mfc with error

4-Oct-08 7:27

thanks

Moak6-Oct-08 23:25

Moak

6-Oct-08 23:25

Additional to what Pallini said, here are two good resources to start at:
http://beej.us/guide/bgnet/[^]
http://tangentsoft.net/wskfaq/[^]

Hope it helps Smile | :)

My webchat in Europe Java | [Coffee]

list <SOCKET> --- got code statement (list) from a socket article in console, ----> in MFC a compile error [modified]

simon alec smith4-Oct-08 6:26

Re: (list <-SOCKET->) --- got code from a socket article in console, ----> in MFC compile error

4-Oct-08 6:26

here is the following statement,

//////////////////////////////////
list<SOCKET> m_vClientList; // All sockets connected to client
//////////////////////////////////

I have included the #include <list>

the program in question, is an internet chat, one server to many
clients

also a declartion in the header file
/////////////////////
int SendMessagePort(string sMessage);
//////////

has a problem with (string) I know that mfc deals with CString
but in this case it might help with my query.

I gather that I need an ---#include of somesort, do you know what it is.

thanks very much

modified on Saturday, October 4, 2008 12:38 PM

CPallini4-Oct-08 6:37

Re: (list <-SOCKET->) --- got code from a socket article in console, ----> in MFC compile error

4-Oct-08 6:37

You've to include <list></list>, <string></string> and add the using namespace std; directive. For instance

// mysource.cpp
#include <list>
#include <string>
using namespace std;
// ... your code
</string></list>

simon alec smith4-Oct-08 6:45

How can i convert "Convert CString[] to char[]" ?

4-Oct-08 6:45

Thanks,

Le@rner4-Oct-08 2:10

Le@rner

4-Oct-08 2:10

Hi all

please tell me how can i convert Convert CString[] to char[].

CString str[10];
char buff_1[]="";

buff_1= str;

error is "error C2440: '=' : cannot convert from 'CString [10]' to 'char [1]'"

Thanks in advance.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: How can i convert "Convert CString[] to char[]" ?

Jaime Olivares4-Oct-08 2:40

Jaime Olivares

4-Oct-08 2:40

you should define buff_1 as char*:

char * buff_1;

and then:

buff_1 = (LPCTSTR)str; // for read-only purposes

buff_1 = str.GetBuffer(0); // for read-write, you will need to use ReleaseBuffer() later

Best regards,
Jaime.

Re: How can i convert "Convert CString[] to char[]" ?

CPallini4-Oct-08 2:42

Re: How can i convert "Convert CString[] to char[]" ?

4-Oct-08 2:42

They're two quite different entities:
(1) CString str[] is an array of strings.
(2) char buff[] is just 1 string.
hence the conversion does not make sense.
Smile | :)

David Crow4-Oct-08 3:27

David Crow

4-Oct-08 3:27

"_$h@nky_" wrote:
CString str[10];

I'm guessing thia is not what you think it is. It's an array of 10 CString objects, not an array that holds 10 characters. In any case, try:

const char *buff_1 = str[0];

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

How to display the program code as output using C or C++

Karan_TN4-Oct-08 1:02

Re: How to display the program code as output using C or C++

4-Oct-08 1:02

hai,
i would like to display the coding.
Means, while i m running my C/C++ program the output should be of the program coding which i m execting.....

how can i do it? Help me!

Thanks for understanding!!!

enhzflep4-Oct-08 1:10

enhzflep

4-Oct-08 1:10

You need to (A) debug a debugger or (B) dissasemble/decompile a dissasembler/decompiler

Then, the program running would be doing nothing other than producing output that contained the program's source-code

I don't understand your question, as it stands. The effort would be pointless - an act of 'because I can'

Re: How to display the program code as output using C or C++

Karan_TN4-Oct-08 1:16

Re: How to display the program code as output using C or C++

4-Oct-08 1:16

Thanks for immediate reeply

for example...

my program coding is..

#include<stdio.h>
#include<conio.h>
void main() 
{ 
float n1,n2,ans;
}</conio.h></stdio.h>

And the program output should be....

#include<stdio.h>
#include<conio.h>
void main()
{
float n1,n2,ans;
}

how to achieve it?

thanks in advance

enhzflep4-Oct-08 1:39

enhzflep

4-Oct-08 1:39

Ahhhh....

I was afraid you were going to say that or words to that effect.

What you're looking for is a decompiler or a dissasembler. The difference is in the 'high-level'ness of their output. A dissasembler will turn a piece of executable code into an assembly listing. A decompiler on the other hand, will produce C (or most any other high level language within reason) code from an executable.

While it is true that a fairly large number of people have written dissasemblers, the same
can't be said for decompilers. It is a notoriously difficult & complex subject.

HexRays has a product that will turn an exe file into C source code - it is the $2000 plugin for IDA Pro interactive dissasembler.

You can find more info on HexRays here (they have a free version of IDAPro)
http://www.hex-rays.com/products.shtml[^]

Also, here are some links to decompilers/dissasemblers that people have coded themselves:
http://www.woodmann.com/collaborative/tools/index.php/Category:Decompilers[^]
http://www.woodmann.com/collaborative/tools/index.php/Category:Disassemblers[^]

'luck.

Re: How to display the program code as output using C or C++

Karan_TN4-Oct-08 2:04

Re: How to display the program code as output using C or C++

4-Oct-08 2:04

thanks for your reply.
whether this can be achieve in .net easily? or someother language?

enhzflep4-Oct-08 2:39

enhzflep

4-Oct-08 2:39

Pleasure.

In every case I can immediately think of, these tools are compiled to native code. This of course implies the use of C/C++, asm & pascal though I've no idea if anything .NET would be suitable or not - I would assume it to be possible, albeit slow in execution on account of the code being interpreted at runtime.

Lutz Roeder's .NET Reflector will give you the source code of a .NET executable. The Deblector & Reflexil plugins are invaluable - HOWEVER these are all only available as binaries, so of very little to no interest to somebody trying to create a tool that achieves the same task.

Re: How to display the program code as output using C or C++

Karan_TN6-Oct-08 0:53

Re: How to display the program code as output using C or C++

6-Oct-08 0:53

ah... this much complicated is there??? since this question was raised by my professor. He ask to find the answer and the coding for this.

PravinSingh6-Oct-08 22:20

PravinSingh

6-Oct-08 22:20

The program that reproduces its own source as output is called quine (After American logician Willard Van Orman Quine). There are many ways to do it, but rather than I give you a complete working example, I'd appreciate if you google for quine and go through the results. Smile | :)

It's better to know some of the questions than all of the answers.

Pravin.

Visual Studio Express Edition 2008 for Commercial Application

Karmendra Suthar3-Oct-08 22:15

Karmendra Suthar

3-Oct-08 22:15

Hi,
Can I Use Visual Studio Express Edition 2008 for developing Commercial Application?

Thanks Saurabh For information, just need to confirm with the forum.

Thnaks everyone

Karmendra

Re: Visual Studio Express Edition 2008 for Commercial Application

CPallini4-Oct-08 0:47