bsd-auth: no longer WIP

1 files changed, 0 insertions, 99 deletions

diff --git a/content/posts/WIP-how-bsd-authentication-works/gen_dot.rb b/content/posts/WIP-how-bsd-authentication-works/gen_dot.rb
deleted file mode 100755
index 9f71876..0000000
--- a/content/posts/WIP-how-bsd-authentication-works/gen_dot.rb
+++ /dev/null
@@ -1,99 +0,0 @@
-#!/usr/bin/env ruby
-# frozen_string_literal: true
-
-# Copyright (C) 2021 Dante Catalfamo
-# SPDX-License-Identifier: MIT
-
-require 'digest'
-require 'set'
-
-SOURCE_DIR = File.join Dir.home, 'src', 'github.com', 'openbsd', 'src', 'lib', 'libc', 'gen'
-FILENAMES = %w[authenticate.c auth_subr.c login_cap.c].freeze
-
-FUNCTION_REGEX = /^\w.*?$\n(?!DEF)(\w*)\(.*?\)\n\{(.*?)^\}/m.freeze
-ONELINE_FUNCTION_REFGEX = /^\w.*?(\w*)\(.*?\).*?\{(.*?)\}/.freeze
-CALL_REGEX = /[^\n](\w+)\(.*?\)/.freeze
-
-class FunctionDigraph
-  attr_accessor :pairs, :subgraphs
-
-  class Subgraph
-    attr_accessor :name, :label, :functions
-
-    def initialize(name, label)
-      @name = name
-      @label = label
-      @functions = []
-    end
-
-    def emit
-      puts "subgraph cluster_#{name} {"
-      puts "label = \"#{label}\""
-      functions.each { |f| puts f unless f == 'DEF_WEAK' }
-      puts '}'
-    end
-  end
-
-  class Pair
-    attr_accessor :to, :from
-
-    def initialize(from, to)
-      @from = from
-      @to = to
-    end
-
-    def emit
-      puts "#{from} -> #{to} [color = \"##{color}\"]"
-    end
-
-    def color
-      Digest::MD5.hexdigest(from)[..5]
-    end
-  end
-
-  def initialize
-    @pairs = []
-    @subgraphs = []
-  end
-
-  def emit
-    puts 'digraph G {'
-    puts 'rankdir=LR'
-    puts 'splines=ortho'
-    puts 'graph [pad="0.5", nodesep="0.5", ranksep="1.5"]'
-    all_functions = Set.new
-    @subgraphs.each { |s| all_functions.merge(s.functions) }
-    @subgraphs.each(&:emit)
-    @pairs.uniq { |p| [p.to, p.from] }.each do |p|
-      p.emit if all_functions.include?(p.to)
-    end
-    puts '}'
-  end
-
-  def parse_files(filenames)
-    filenames.each do |filename|
-      contents = File.read(filename)
-      basename = File.basename filename
-      subgraph = Subgraph.new(basename.gsub(/\..*/, ''), basename)
-      functions = contents.scan(FUNCTION_REGEX)
-      oneliners = contents.scan(ONELINE_FUNCTION_REFGEX)
-      functions.concat(oneliners) unless oneliners.empty?
-      functions.each do |function|
-        function_name = function[0]
-        function_body = function[1]
-        subgraph.functions << function_name
-        function_body.scan(CALL_REGEX) do |call|
-          @pairs << Pair.new(function_name, call[0])
-        end
-      end
-      @subgraphs << subgraph
-    end
-  end
-end
-
-fg = FunctionDigraph.new
-
-files = FILENAMES.map { |f| File.join(SOURCE_DIR, f) }
-fg.parse_files files
-
-fg.emit