"Hello Ubuntu" in every programming language

[LaRoza]

Shellcode is still missing

I think it has been done before, but here it is:

#!/bin/bash

echo "Hi. What is your name?";
read name;
echo "Hello, $name! Welcome to Ubuntu!";

[ghostdog74]

shellcode != shell script

[LaRoza]

shellcode != shell script

Shellcode? http://en.wikipedia.org/wiki/Shellcode

That isn't a programming language, and it linked to Shell (Computing), so I thought it was just a mistaken reference to shell scripts.

[Wybiral]

shellcode != shell script

Just pack the machine code from one of the assembly examples into a C array (it's just bytes), dereference it as a function pointer, and call it.

[ghostdog74]

Just pack the machine code from one of the assembly examples into a C array (it's just bytes), dereference it as a function pointer, and call it.

thanks wy, I know what it is, but i don't really care . I was only clarifying the differences to La and Red about Witch's proposal. so maybe your suggestion should be directed to Witch.

[WitchCraft]

Just pack the machine code from one of the assembly examples into a C array (it's just bytes), dereference it as a function pointer, and call it.

nah, you still have to get rid of the 0 bytes first.
And before you can dereference it, you have to typecast it, at least when compiling with g++

[Nemooo]

C++

Version 1: Do not write results to file

#include <cstdio>
#include <cstdlib>
#include <iostream>

using namespace std;

string username = "";

int main(int argc, char *argv[]);

int main(int argc, char *argv[]){
    cout << "Hi! What's your name? ";
    cin >> username;
    cout << "Hello, " << username << "! Welcome to Ubuntu!\n";
    return 0;
}

No reason to make it so complicated:

#include <iostream>

int main()
{
	std::string username;
	std::cout << "Hi! What's your name? ";
	std::getline(std::cin, username);
	std::cout << "Hello, " << username << "! Welcome to Ubuntu!" << std::endl;
	return 0;
}

I don't like using namespaces. And it's with getline instead of cin, so the name can contain spaces.

[LaRoza]

I don't like using namespaces.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Surely you don't mean that...

[Nemooo]

Well, so far I'm only doing small console programs, so I don't have to type std:: a lot. When I get to the greater applications, they might be handy.

[Wybiral]

nah, you still have to get rid of the 0 bytes first.
And before you can dereference it, you have to typecast it, at least when compiling with g++

Yeah, but all of that is trivial (and you don't always have to get rid of the 0, it depends how the code is being fed in). I'm not sure what you mean by typecasting it, unless you mean casting a character array to a function pointer (I don't know why you'd need that because if you're writing the C code, you can code anything you want in the first place). The real difficult part would be finding a program with an obvious enough overflow exploit to slip it in (that part is probably much easier on an operating system line Windows ).