jonathan at buzzard.org.uk (Jonathan Buzzard) writes: >It is under the GPL, so is free to use, provided you make your code >GPL as well. There's a 2 clause BSD version of something similar at: http://www.maths.tcd.ie/~dwmalone/time/pps_shm.c also, incase anyone cares. Look for the ntp_shmset function. David.