Lighttpd

he config syntax of lighttpd's rewrite rules are more like associative arrays in PHP then the rewrite syntax of Apache webserver. Thus, a migration from Apache to lighttpd is not really trivial with a certain number of rules. Felt after the 10,000th rule I made a copying error, so that in simple terms the config looked like this:

url.rewrite-once = (
...
"^/foo" => "$0",
"^/(.*)" => "/handler/$1$",
...
)

At some point of lighttpd's development there was an optimization in the handling of the pattern, so that this config mistake triggers a segfault. My little patch closes the error.