remove old inetd+git examples and exec_cgi

While it was technically interesting and fun to tunnel arbitrary
protocols over a semi-compliant Rack interface, nobody actually does
it (and anybody who does can look in our git history).  This was
from back in 2009 when this was one of the few servers that could
handle chunked uploads,were one of the few users of chunked uploads,
nowadays everyone does it! (or do they? :)

A newer version of exec_cgi.rb still lives on in the repository of
yet another horribly-named server, but there's no point in bloating
the installation footprint of somewhat popular server such as unicorn.

1 files changed, 0 insertions, 109 deletions

diff --git a/lib/unicorn/app/inetd.rb b/lib/unicorn/app/inetd.rb
deleted file mode 100644
index 13b6624..0000000
--- a/lib/unicorn/app/inetd.rb
+++ /dev/null
@@ -1,109 +0,0 @@
-# -*- encoding: binary -*-
-# :enddoc:
-# Copyright (c) 2009 Eric Wong
-# You can redistribute it and/or modify it under the same terms as Ruby 1.8 or
-# the GPLv2+ (GPLv3+ preferred)
-
-# this class *must* be used with Rack::Chunked
-module Unicorn::App
-  class Inetd < Struct.new(:cmd)
-
-    class CatBody < Struct.new(:errors, :err_rd, :out_rd, :pid_map)
-      def initialize(env, cmd)
-        self.errors = env['rack.errors']
-        in_rd, in_wr = IO.pipe
-        self.err_rd, err_wr = IO.pipe
-        self.out_rd, out_wr = IO.pipe
-
-        cmd_pid = fork {
-          inp, out, err = (0..2).map { |i| IO.new(i) }
-          inp.reopen(in_rd)
-          out.reopen(out_wr)
-          err.reopen(err_wr)
-          [ in_rd, in_wr, err_rd, err_wr, out_rd, out_wr ].each { |i| i.close }
-          exec(*cmd)
-        }
-        [ in_rd, err_wr, out_wr ].each { |io| io.close }
-        [ in_wr, err_rd, out_rd ].each { |io| io.binmode }
-        in_wr.sync = true
-
-        # Unfortunately, input here must be processed inside a seperate
-        # thread/process using blocking I/O since env['rack.input'] is not
-        # IO.select-able and attempting to make it so would trip Rack::Lint
-        inp_pid = fork {
-          input = env['rack.input']
-          [ err_rd, out_rd ].each { |io| io.close }
-
-          # this is dependent on input.read having readpartial semantics:
-          buf = input.read(16384)
-          begin
-            in_wr.write(buf)
-          end while input.read(16384, buf)
-        }
-        in_wr.close
-        self.pid_map = {
-          inp_pid => 'input streamer',
-          cmd_pid => cmd.inspect,
-        }
-      end
-
-      def each
-        begin
-          rd, = IO.select([err_rd, out_rd])
-          rd && rd.first or next
-
-          if rd.include?(err_rd)
-            begin
-              errors.write(err_rd.read_nonblock(16384))
-            rescue Errno::EINTR
-            rescue Errno::EAGAIN
-              break
-            end while true
-          end
-
-          rd.include?(out_rd) or next
-
-          begin
-            yield out_rd.read_nonblock(16384)
-          rescue Errno::EINTR
-          rescue Errno::EAGAIN
-            break
-          end while true
-        rescue EOFError,Errno::EPIPE,Errno::EBADF,Errno::EINVAL
-          break
-        end while true
-
-        self
-      end
-
-      def close
-        pid_map.each { |pid, str|
-          begin
-            pid, status = Process.waitpid2(pid)
-            status.success? or
-              errors.write("#{str}: #{status.inspect} (PID:#{pid})\n")
-          rescue Errno::ECHILD
-            errors.write("Failed to reap #{str} (PID:#{pid})\n")
-          end
-        }
-        out_rd.close
-        err_rd.close
-      end
-
-    end
-
-    def initialize(*cmd)
-      self.cmd = cmd
-    end
-
-    def call(env)
-      /\A100-continue\z/i =~ env[Unicorn::Const::HTTP_EXPECT] and
-          return [ 100, {} , [] ]
-
-      [ 200, { 'Content-Type' => 'application/octet-stream' },
-       CatBody.new(env, cmd) ]
-    end
-
-  end
-
-end