GMT tokens to filetime

[Steve French]

Since snapshots are GMTTokens (48 bytes unicode followed by null e.g.
"@GMT-2001.03.30-14.44.00") while SMB3 timewarp open contexts require
Timestamps (64 bit field that is 100nsecs since 1601) anyone know
tools or examples that convert between them in userspace (that we
could use e.g. in cifs-utils to convert these)?

I didn't see snapshot related stuff in smbclient

-- 
Thanks,

Steve