I still got seg fault when calling Pointer.getByteArray(0, stru.length); It works if I change the type of data back to byte[] and initialize the byte array to the maximum length data will ever have (2404b). Got any ideas?

On Sat, Dec 13, 2008 at 2:32 PM, Timothy Wall <twal...@dev.java.net> wrote: Pointer.getString(0, stru.length) if it's a string. Pointer.getByteArray(0, stru.length) if it's raw data.

getByteBuffer() pulls out a pointer from offset zero and creates a buffer from that, as opposed to converting the original pointer to a buffer, which is what you were expecting.

On Dec 13, 2008, at 8:16 AM, Thinner wrote:

Ok, I changed the type of data to Pointer and then called Pointer.getByteBuffer(0, length); and then tried to loop through the buffer but as soon as I call ByteBuffer.get() I get seg fault. Do I need to allocate something somewhere? :)

On Sat, Dec 13, 2008 at 2:12 PM, Timothy Wall <twal...@dev.java.net> wrote: primitive arrays within a struct are inlined. you need a pointer type.

On Dec 13, 2008, at 8:07 AM, Thinner wrote:

Hello again everyone.

I'm trying to read a native char* from my Java app but I keep getting seg fault.

struct stru{ int length; char* data; }

struct stru *return_value some_function(){ }

public class stru extends Structure{ public static class ByReference extends stru implements Structure.ByReference{}

int length; byte[] data;

public stru{ data = new byte[1]; } }

public static void main(String[] args){ myLibrary.INSTANCE }

Nor a spork, I suppose.