How to read char* value from Deref()

[ljfuyuan]

Hello, I got a C function returns struct like this:

typedef struct Result {
  char *version;
} Result;

struct Result init(void);

With generated go is

type Result struct {
	Version        []byte
	ref67033404    *C.Result
	allocs67033404 interface{}
}

And Deref() does't set the Len for the Version []byte, So is there any way to read Version out since i can not get the length,

Thanks.