shachain: add shachain_next_index()
[ccan] / ccan / crypto / shachain /
drwxr-xr-x   ..
lrwxrwxrwx 25 LICENSE -> ../../../licenses/BSD-MIT
-rw-r--r-- 1357 _info
-rw-r--r-- 4063 design.txt
-rw-r--r-- 3076 shachain.c
-rw-r--r-- 4027 shachain.h
drwxr-xr-x - test
drwxr-xr-x - tools