byte - Buffer Overflow strcpy() -


i know how many bytes have overflow run shellcode ?

int fun (char data[256]){ int i; char *tmp;  strcpy(tmp,data);  }

it known that:

  • if string chain *data larger *tmp there overflow.

  • otherwise there no buffer overflow.

makes general way compiler. exam computer master. must explain 2 cases :

-when *tmp[200] example ,

-when *tmp[300] ie case or *tmp larger *data (no overflows) , *tmp smaller *data (overflow)

how know number of bytes overwhelmed code executes ?


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