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Well, to be honest... It is an exercise on my studies (Operating Systems course). We have to write a program that launches bash shell with root's privileges and then make it executable for every user...

No. I have program wrote in C language. But yes, it uses sudo to call another program :)



Well, that's it:


system("sudo bash");

It does.


But there must be a way to do it without a password :(

Okay, take a look at what I have here please:



Where "[Directories...]" is a directory structure which I am sure is proper. And then I go into this directory and type

And then it asks me for...

Yes, I understand. Thanks :)

Well I wanted to use suid but it still seems not to be working... So I tried your method and... it still doesn't work. I basically lost any hope that it will ever...

Thanks Impavidus, now I get it. However it still asks me for a password when I try to execute this program. Maybe I'll say what this program basically does: it launches command prefixed with `sudo`....

Thanks for a reply.

Well, I need to make it available for every user. Not only from specific user group. I just wonder why SUID does not work while it does not even display error message...
And...

Hi.

I need to set executable file's properties to make it executable for every user with root's privileges. I found out that SUID will do the trick so I set file's properties with chmod command...

Hi!

If I do something like this:

int *array = (int*) malloc(sizeof(int) * randomnumber);

Does it mean that malloc creates an... lets say 'continuous' block of memory for this array? I mean,...

Thank you for the answer, @ofnuts!


I'm sorry, but I don't understand this :-(
EDIT//
Ah... I think I get it. But that's what I said in the first post! I count from 0 to 7 in an 'array' version...

Hi,

I would like to ask what is the difference between these 2 functions:
Function 1
Function 2

Because I am 100% sure there must be a difference. When I run my program with a first function,...

Thank you! :)

Hi,

I have a simple question.

If I type something like

if (a==1 && b != 3)
And lets say that 'a' is equal to 2. Does a program check b's value or stops when it discovers that 'a' doesn't...

Big thanks to you guys, I almost get it now. I just don't understand that "dollar" part. The beginning of the steeldriver's post seemed to solve my problem, but then this appeared:
...

Hi,

I was wondering if it is possible to use a defined constant, like

#define PRECISION 3
In a printf format, like

printf("%.PRECISIONf", SomeFloatVariable);

How to define a number's...

Well, of course I will check this, but I'm 99% sure it does work as I described in a first post. Are you sure about this?
I will check this a bit later, I cannot do it right now.

Thank you for...

Hi,

I'm sorry if this problem was already discussed here. I don't know what to type in Google to find it.

Here is a fragment of my code:

if (var/900==1 || var/400==1)
{
var2[i]...