Reverse Engineering for Beginners

CHAPTER 23. POINTERS TO FUNCTIONS CHAPTER 23. POINTERS TO FUNCTIONS

23.1.1 MSVC + OllyDbg

Let’s load our example into OllyDbg and set a breakpoint oncomp().

We can see how the values are compared at the firstcomp()call:

Figure 23.1:OllyDbg: first call ofcomp()

OllyDbg shows the compared values in the window under the code window, for convenience. We can also see that theSP
points toRA, where theqsort()function is (located inMSVCR100.DLL).