/usr/include/luasandbox/lua-cjson.h is in lua-trink-cjson-dev 2.1.0+git20150826-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | /* This file has been automatically generated by dh-lua */
extern int luaopen_cjson(lua_State*);
/* eof */
|