Errors with desock.so and desock.dup
powerthe900 opened this issue · 8 comments
I am trying to use preeny to make recieve http requests from stdin. Hence, I used desock.so and desock_dup,so. When I use desock.so, I get this error: setsockopt(TCP_NODELAY) failed: Operation not supported. When I use desock_dup.so, I get this error: setting default fds failed: Success.
Have you guys occurred this error before? How would I solve this?
It looks like lighttpd is treating the socketpair that preeny replaced the network connection with as a network socket, and is trying to set socket options on it. The way to handle this for desock is to add some handling (probably just return 0) for setsockopts in the module. Not sure what's happening with desock_dup, but I'm guessing a similar root cause (treating the FD as a socket).
Sorry if the source code part looks wierd.
The return zero method did not work.
The binary has a one shot mode that process single (one) request on stdin socket, then exit. When I use desock.so and pass a normal http request through stdin, it says that -1 is not a socket. How would I bypass this?
Ive got it to work
What was the solution in the end?
FYI: the next version of lighttpd 1.4.56 additionally supports a special case of lighttpd -1 (one-shot mode) with pipes on stdin and stdout, e.g. for use with a netcat listener. The current lighttpd -1 expects a socket on stdin.
The solution was that they closed stdin in the program. You would just have to delete that section in the code and desock worked.