Added main.go file

main.go

@@ -0,0 +1,71 @@
+//
+// process.go : Contains main package drivers and stuff
+// Written By : @codingo
+//		@ice3man
+//
+// Distributed Under MIT License
+// Copyrights (C) 2018 Ice3man
+//
+
+package main
+
+import (
+	"fmt"
+	"flag"
+	"os"
+
+	"subfinder/libsubfinder/helper"
+	"subfinder/libsubfinder/engines/passive"
+)
+
+
+var banner = `
+  _________    ___.   ___________.__            .___            
+ /   _____/__ _\_ |__ \_   _____/|__| ____    __| _/___________ 
+ \_____  \|  |  \ __ \ |    __)  |  |/    \  / __ |/ __ \_  __ \
+ /        \  |  / \_\ \|     \   |  |   |  \/ /_/ \  ___/|  | \/
+/_______  /____/|___  /\___  /   |__|___|  /\____ |\___  >__|   
+        \/          \/     \/            \/      \/    \/       
+`
+
+// Parses command line arguments into a setting structure
+func ParseCmdLine() (state *helper.State, err error) {
+
+	// Initialize current state and read Config file
+	s, err := helper.InitState()
+	if err != nil {
+		return &s, err
+	}
+
+	flag.BoolVar(&s.Verbose, "v", false, "Verbose output")
+	flag.BoolVar(&s.Color, "c", true, "Use colour in outpout")
+	flag.IntVar(&s.Threads, "t", 10, "Number of concurrent threads")
+	flag.StringVar(&s.Domain, "d", "", "Domain to find subdomains for")
+	flag.BoolVar(&s.Recursive, "r", true, "Use recursion to find subdomains")
+
+	flag.Parse()
+
+	return &s, nil
+}
+
+
+func main() {
+
+	fmt.Println(banner)
+	fmt.Printf("\nSubFinder v0.1.0 			Made with ❤ by @Ice3man")
+	fmt.Printf("\n===============================================================")
+
+	state, err := ParseCmdLine()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	// Improve Usage guide here
+	if state.Domain == "" {
+		fmt.Printf("\n\nsubfinder: Missing domain argument\nTry './subfinder -h' for more information\n")
+		os.Exit(1)
+	}
+
+	passive.PassiveDiscovery(state)
+}