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opcode generation and execution
Asked by calvinrsmith in Windows Programming
Tags: generation, opcode
I can't seem to get it to work what is wrong?
it dies saying the address at the memory location pointed to by p could not be read
Here is what I've got:
#include <stdio.h>
#include <windows.h>
void (*func)();
int main()
{
void *p;
char *pc;
printf("hello\n");
// allocate the memory
p = VirtualAlloc(NULL,1024,MEM
if (p == NULL)
printf("virtual alloc failed");
else
{
// write the opcodes to the memory
pc = p;
// ret = c3 ?? right ??
(*pc) = 12; // c
pc++;
(*pc) = 3; // 3
pc++;
// call the function
func = p;
func();
// all done
printf("done\n");
}
}
| [+][-]07/08/03 02:27 PM, ID: 8880663Accepted Solution |
Your question has an Asker Certified™ answer! calvinrsmith verified that this solution worked for them--which means it will likely work for you, too. Click to view the solution free for 30-days now.
