prefer sizeof(x) instead of datalen

add ability to proxy requests Add to gmid the ability to forwad a request to another gemini server and thus acting like a reverse proxy. The current syntax for the config file is server "example.com" { ... proxy relay-to host:port } Further options (like the use of custom certificates) are planned. cf. github issue #7

don't work around a missing -Wno-unused-parameter It's been there for a long time, and it's frankly annoying to pretend to use parameters. Most of the time, they're there to satisfy an interface and nothings more.

one FastCGI connection per client FastCGI is designed to multiplex requests over a single connection, so ideally the server can open only one connection per worker to the FastCGI application and that's that. Doing this kind of multiplexing makes the code harder to follow and easier to break/leak etc on the gmid side however. OpenBSD' httpd seems to open one connection per client, so why can't we too? One connection per request is still way better (lighter) than using CGI, and we can avoid all the pitfalls of the multiplexing (keeping track of "live ids", properly shut down etc...)

[cgi] switch from pipe(2) to socketpair(2) We can't use normal pipe(2)s with libevent in some cases. Switch to socketpair(2), which doesn't have the same problem. This has the drawback that it doesn't prevent the CGI script from reading stdout, for instance. (sockets are two-way, pipes only one-way)

PF_UNIX is not a valid protocol for socketpair OpenBSD accept it, but FreeBSD disallows it. PF_UNSPEC (or 0) should be used instead. The FastCGI bit in the regress suite still doesn't work on FreeBSD, but at least now it starts.

don't leak a file descriptor make sure we always close every fd in every possible code path; while there, also add a log_err if fork(2) failed.

don't let CGI scripts inherit our stderr our stderr could have been sent to the logger process, so it may be invalid. Furthermore, in the future we may want to capture also the stderr of the processes.

define and use GMID_VERSION

use the correct document root pass the correct loc_off to the executor, so the various variables that depends on the matched location (like DOCUMENT_ROOT) are computed correctly.

fastcgi: a first implementation Not production-ready yet, but it's a start. This adds a third ``backend'' for gmid: until now there it served local files or CGI scripts, now FastCGI applications too. FastCGI is meant to be an improvement over CGI: instead of exec'ing a script for every request, it allows to open a single connection to an ``application'' and send the requests/receive the responses over that socket using a simple binary protocol. At the moment gmid supports three different methods of opening a fastcgi connection: - local unix sockets, with: fastcgi "/path/to/sock" - network sockets, with: fastcgi tcp "host" [port] port defaults to 9000 and can be either a string or a number - subprocess, with: fastcgi spawn "/path/to/program" the fastcgi protocol is done over the executed program stdin of these, the last is only for testing and may be removed in the future. P.S.: the fastcgi rule is per-location of course :)

allow ``root'' rule to be specified per-location block

added ``env'' option to define environment vars for CGI scripts

restore signal handlers before exec'ing CGI scripts

define TLS_VERSION, TLS_CIPHER and TLS_CIPHER_STRENGTH for CGI scripts