[Mac] A few findings and a few questions

[MaiN]

Maybe a stupid question, but isn't 8 bytes=64 bits?

Correct.. And on 64-bit pointers are 64-bits in size, thus you can "possibly read" 8 bytes as a pointer with 64-bit addressing.

[Musah]

Correct.. And on 64-bit pointers are 64-bits in size, thus you can "possibly read" 8 bytes as a pointer with 64-bit addressing.

I'm actually setting the buffer to 4 bytes. So it looks something like this (tried to remove as much ObjC as I could)

int buffer[sizeof(int)];
//Do memory stuffs with buffer length set to sizeof(int) and the returned value for the address to buffer
//Size of int of course is 4
int var = 0;
var = (int)*buffer;
return var;

[MaiN]

I'm actually setting the buffer to 4 bytes. So it looks something like this (tried to remove as much ObjC as I could)

int buffer[sizeof(int)];
//Do memory stuffs with buffer length set to sizeof(int) and the returned value for the address to buffer
//Size of int of course is 4
int var = 0;
var = (int)*buffer;
return var;

You are actually setting the buffer to 16 bytes, not 4 bytes.
Also, it was meant as a joke.

[Cypher]

I'm actually setting the buffer to 4 bytes. So it looks something like this (tried to remove as much ObjC as I could)

int buffer[sizeof(int)];
//Do memory stuffs with buffer length set to sizeof(int) and the returned value for the address to buffer
//Size of int of course is 4
int var = 0;
var = (int)*buffer;
return var;

[Musah]

Alright, maybe I don't completely know what's going on with my memory reading method, but I'm kinda just learning as I go here.

[xalcon]

...
do you still try to use the GUID as a Pointer to something? Even when you cut the 8 byte big GUID into a 4 Byte integer, you won't get anything you would want (except you want some weired data or null pointerzzzZ).

[Musah]

...
do you still try to use the GUID as a Pointer to something? Even when you cut the 8 byte big GUID into a 4 Byte integer, you won't get anything you would want (except you want some weired data or null pointerzzzZ).

If you really want to try to figure some ObjC/C:

+ (int)loadDataForAddress:(mach_vm_address_t)Address Buffer:(UInt64*)DataBuffer BufLength:(mach_vm_size_t)Bytes{
    mach_vm_size_t retBytes = Bytes;
    kern_return_t  kReturn;
    
    kReturn = mach_vm_read_overwrite(globalVMTask,Address,Bytes,(vm_address_t)DataBuffer,&retBytes);
    if ((retBytes == Bytes) && (kReturn == 0))
    {
        return 0;
    }
    
    return 1;
}