Can somebody show how to read bytes?

[FelixB]

.btw,your code makes an infinite loop....

where is that infinite loop? I don't see any...

["BumbleBee"]

#include "StdAfx.h"
#include <iostream>
#include <string.h>
using namespace std;
 
void encrypt_data();
 
int main()
{
FILE * f;
unsigned char buffer[100];
int n;
 
f = fopen("C:\\Program Files (x86)\\TeamViewer\\Version6\\TeamViewer.exe", "rb");
if (f)
{
    n = fread(buffer, 100, 1, f);
for (int c = 0; c <= 100 ; c++)
{
     printf("%.2X ", (int)buffer[c]); //outputs hex!!!!!!
     // put an extra space between every 4 bytes
     if (c % 4 == 3)
     {
         printf(" ");
     }
 
     // Display 16 bytes per line
     if (c % 16 == 15)
     {
         printf("\n");
     }
}
// Add an extra line feed for good measure
printf("\n\n\n");
}
else
{
    cout << "error";
}
 
char a;
	cin >> a;
	return 0;
}

#include "StdAfx.h"
#include <iostream>
#include <string.h>
using namespace std;

void encrypt_data();

int main()
{
FILE * f;
unsigned char buffer[100];
int n;

f = fopen("C:\\Program Files (x86)\\TeamViewer\\Version6\\TeamViewer.exe", "rb");
if (f)
{
    n = fread(buffer, 100, 1, f);
for (int c = 0; c <= 100 ; c++)
{
     printf("%.2X ", (int)buffer[c]); //outputs hex!!!!!!
     // put an extra space between every 4 bytes
     if (c % 4 == 3)
     {
         printf(" ");
     }

     // Display 16 bytes per line
     if (c % 16 == 15)
     {
         printf("\n");
     }
}
// Add an extra line feed for good measure
printf("\n\n\n");
}
else
{
    cout << "error";
}

char a;
	cin >> a;
	return 0;
}

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I want to make that in Qt^^^

And FelixB the loop doesn't stop for me.

[wysota]

btw,your code makes an infinite loop....

There is no infinite loop in my code.

[FelixB]

And FelixB the loop doesn't stop for me.

which loop do you mean?

["BumbleBee"]

it keeps outputting bytes....never stops.

[wysota]

it keeps outputting bytes....never stops.

Maybe try pointing the program to a smaller file?

["BumbleBee"]

Accually yes.It works with a smaller one.
Thank you for this,could you comment a bit the lines?
Thanks.

[wysota]

Thank you for this,could you comment a bit the lines?

No, I couldn't. It's so trivial there is nothing to comment. If you have specific questions then ask and I'm sure somebody will provide an explanation.

[squidge]

I need to take the hex,in order to encrypt it and save it as a new exe...btw,your code makes an infinite loop....

Why do you want to encrypt the hex (text) version of a binary file? Why not just encrypt the binary version? Converting to text first makes no sense...

[wysota]

Maybe he wants to encrypt twice as much as he needs to? It's always fun to make a 10MB file out of a 5MB file...

["BumbleBee"]

Why do you want to encrypt the hex (text) version of a binary file? Why not just encrypt the binary version? Converting to text first makes no sense...

You mean like this?

QByteArray byte = file.read(16);

QByteArray byte = file.read(16);

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[squidge]

You mean like this?

QByteArray byte = file.read(16);

QByteArray byte = file.read(16);

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Yes, exactlly.

["BumbleBee"]

This outputs some strange symbols(I suppose bin. code),but it also beeps and crashes after some secs...

[wysota]

Do you want to encrypt it or print it? I doubt encrypting it outputs any strange symbols or makes any sounds. This is binary data that is not suitable for printing to a text terminal.

["BumbleBee"]

Well,crypt it of course,but I want to out put it,to make sure,everything works...and that I will encrypt the data I need.!

[squidge]

So encrypt the binary data but output it to a terminal as hex for the before and after.

["BumbleBee"]

Yup.
Thanks guys for the support,help and sorry for the dump question...