SO_TIMESTAPMNS option in NetBSD

I've made a small patch that implements SO_TIMESTAMPNS option in NetBSD kernel. Userlevel program that can test it is here.
One nasty thing i faced is that i used older header files for userspace program, and struct timespec was changed since.

struct timespec
{
    time_t tv_sec; //Now 64 bits long (was 32)
    long tv_nsec;
};

I have been getting zero tv_nsec all the time because of that. 

For real the receieved structre is:
+---------------------------+
| tv_sec  | [lower 4 bytes] |
| tv_sec  | [upper 4 bytes] |
| tv_nsec | [4 bytes]       |
+---------------------------+

Userspace thinks:
+---------------------------+
| tv_sec  | [lower 4 bytes] |
| tv_nsec | [4 bytes]       |
+---------------------------+

Had a hard time debugging that ;)