fixed changelog format for old entries

[cgi] added support for path parameters enhance the CGI scripting support so that script can take path parameters. That is, a script at /cgi/foo is called when the request path is /cgi/foo/bar/... This commit also introduce some backward incompatible changes as the default env variables set for the CGI script changed.

regen readme

documentation improvements

[cgi] execute cgi scripts only inside a specific directory change the meaning of the -x flag: now it takes a string and executes CGI scripts only if they are inside a directory with the given name, relatively to the document root.

[cgi] set QUERY_STRING only if there is a query string

[debug] print number of connected clients on SIGINFO or SIGUSR2 for poor peoples

handle CGI concurrently don’t stop-the-world-until-cgi-end, but rather poll on the script, so we can handle other requests in the meantime.

[cgi] setenv instead of building an env + define more env variables

pass the query parameter to start_cgi

extract query parameters from the URL

ensure the requested protocol is “gemini” …and not something else that happens to be 6-bytes long.

mark every open file as close-on-exec

implementing CGI – NOT READY YET! This is a first try at implementing CGI scripting. The idea is that, if CGI is explicitly enabled by the user, when a user requires an executable file instead of serving it to the client, that file will be executed and its output fed to the client. There are various pieces that are still lacking, the firsts that comes to mind are: - performance: the handle_cgi just loops ignoring the WANT_POLLIN/POLLOUT and blocking if the child process hasn’t outputted anything. - we don’t parse query variable (yet) - we need to set more variables in the child environment side question: it’s better to set the variables using setenv() or by providing an explicit environment? - document what environment the CGI script will get - improve the horrible unveil/pledge(cgi ? …) but now I can serve “hello-world”-tier script from gmid!

added option to log to a file