libs/ip: return a copy of given tables in __mask16() to avoid destroying them later
libs/ip: return a copy of given tables in __mask16() to avoid destroying them later


git-svn-id: f7818b41aa164576329f806d7c3827e8a55298bb@3953 ab181a69-ba2e-0410-a84d-ff88ab4c47bc

fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci