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Fatal signal 11 (SIGSEGV)

Submitted by amandra on

First of all thanks for all this effort, I've been using Dcraw for a while, and it's nice to have a simple threaded implementation.

I'm trying to call Libraw through JNI. I can pass hundreds of images and decode perfectly fine with this snippet:

	LibRaw RawProcessor;
	int result;
 
	jsize len = env->GetArrayLength(bufferBytes);
	jbyte* buffer = env->GetByteArrayElements(bufferBytes, 0);
 
	result = RawProcessor.open_buffer(buffer, len);
	if (LIBRAW_FATAL_ERROR(result))
		return NULL;
	result = RawProcessor.unpack_thumb();
	if (LIBRAW_FATAL_ERROR(result))
		return NULL;
	libraw_processed_image_t *image = RawProcessor.dcraw_make_mem_thumb(&result);
	if (LIBRAW_FATAL_ERROR(result))
		return NULL;
	jbyteArray thumb = env->NewByteArray(image->data_size);
	env->SetByteArrayRegion(thumb, 0, image->data_size, (jbyte *) image->data);
	env->ReleaseByteArrayElements(bufferBytes, buffer, 0);
	RawProcessor.dcraw_clear_mem(image);
	RawProcessor.recycle();
	return thumb;

However when I send a non-image it crashes out with Fatal Signal 11 (SIGSEGV). So it appears I have a memory issue, but ONLY when it's not an image file. I thought I followed the examples for when there is a failure, but I guess I'm missing something. How should I be handling memory when the open_buffer throws an error?

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