Arduino specifically provides absolutely no way to exit their loop function, as exhibited by the code that actually runs it: Besides, on a microcontroller there isn’t anything to exit to in the first place. The closest you can do is to just halt the processor. That will stop processing until it’s reset.
I’m following these lessons from OpenSecurityTraining. I’ve reached the lab part where I’ve to train myself on a CMU Bomb. They provide a x86_64 compiled CMU Bomb that you can find here to train on : CMU Bomb x86-64 originally from a 32-bit bomb from CMU Labs for Computer Systems: A Programmer’s Perspective (CS:APP) 1st … Read more
If this is what you are asking, %p and %Fp print out a pointer, specifically the address to which the pointer refers, and since it is printing out a part of your computer’s architecture, it does so in Hexadecimal. In C, you can cast between a pointer and an int, since a pointer is just … Read more
malloc(sizeof(int)) means you are allocating space off the heap to store an int. You are reserving as many bytes as an int requires. This returns a value you should cast to int *. (A pointer to an int.) As some have noted, typical practice in C is to let implicit casting take care of this. malloc(sizeof(int*)) means you are allocating space off the heap … Read more
It indicates it couldn’t find gcc.exe. I have a path environment variable set to where MinGW is installed Maybe you haven’t set the path correctly? shows the path to gcc.exe? Otherwise, compilation is similar to Unix:
You can’t cast anything to a structure type. What I presume you meant to write is: But please don’t cast the return value of malloc() in a C program. Will work just fine and won’t hide #include bugs from you.
When I type x/xw 0x208c it gives me back error which says Cannot access memory at address 0x208c The disassembly for your program says that it does something like this: In other words, the 0x208c is a value (8332) that your program has hard-coded in it, and is not a pointer. Therefore, GDB is entirely … Read more
Couple of things You can recombine by masking x with a value that is all FF except for bytes m and n You can compute the mask by left shifting 0xFF m times and n times and combining the result and then XOR it with 0xFFFFFFFF FYI when you right shift a signed value, it … Read more
Using redirection sends the contents of the input file to stdin, so you need to read from stdin inside your code, so something like (error checking omitted for clarity)
The do while loop executes the content of the loop once before checking the condition of the while. Whereas a while loop will check the condition first before executing the content. In this case you are waiting for user input with scanf(), which will never execute in the while loop as wdlen is not initialized … Read more