Manipulate the stack frame return address

ManipulateStackFrameReturnAddress.c

//2014-02-09 jorge@jorgechamorro.com
//Manipulate the stack frame return address

#include <stdio.h>
#include <string.h>


void uno () {
 char** r= (char**) &r+2;
 while (**r != '\x90') (*r)++;
}


int main () {
 char a[18];

 strcpy(a, "GeorgeOfTheJungle");
 uno();
 strcpy(a, "EhhQuePassaTronco");

 asm("nop");
 printf("%s\n", a);
}