The algorithm came from uIP 1.0 from around 2001. Might be interesting to > see what uIP in Contiki did with that in later years. >
Here is some modified uIP source https://github.com/adamdunkels/uip/blob/master/uip/uip-split.c It says it is the original 1.0 source, but it is not. The original 1.9 source did not support IPv6