Update crt.go

Added os.args
On future add pkg flag!

crt.go

@@ -6,9 +6,7 @@ package main
 // gather all certificate sub-domains from crt.sh and save them to a file
 // based in https://gist.github.com/1N3/dec432d14fec84e09733f39669ebca0f
 
-
 import (
-	"flag"
 	"fmt"
 	"net/http"
 	"os"
@@ -17,9 +15,7 @@ import (
 	"github.com/fatih/color"
 )
 
-var search = "https://crt.sh/?q="
-
-var meutexto = `
+var banner = `
            _         _     
   ___ _ __| |_   ___| |__  
  / __| '__| __| / __| '_ \ 
@@ -28,50 +24,43 @@ var meutexto = `
 						 
  [+] by @anakein
  [+] https://github.com/an4kein
- [-] Usage: crt.go -domain <target>
+ [-] Usage: crt.go <target>
 `
 
-func main() {
-	color.Cyan(meutexto)
-	color.Red("+ -- ----------------=[Gathering Certificate Subdomains]=------------------------+")
-	textPtr := flag.String("domain", "", "Domain to parse. (Required!)\n Example: ./crt.go -domain example.com")
-	flag.Parse()
-
-	if *textPtr == "" {
-		flag.PrintDefaults()
-		os.Exit(1)
-	} else {
-		resp, err := http.Get(search + *textPtr)
+var search = "https://crt.sh/?q="
 
-		if err != nil {
-			fmt.Println(err)
-		}
-		if http.StatusBadGateway == 502 {
-			fmt.Println("Error: ", http.StatusBadGateway, "Bad Gateway")
+func crtgo() {
+	if os.Args != nil && len(os.Args) > 1 {
+		domain := os.Args[1]
+		if domain != "" {
+			color.Red("+---------------------=[Gathering Certificate Subdomains]=------------------------+")
+			resp, err := http.Get(search + domain)
+			if err != nil {
+				fmt.Println(err)
+			}
+			defer resp.Body.Close()
+			f, err := os.Create("/tmp/output.txt")
+			defer f.Close()
+			resp.Write(f)
+			cmd3 := `cat /tmp/output.txt |grep "\." |grep -v "<A style=\|.png\|href=\|&\|{\|crt.sh\|W3C/\|/2.0" |tr "<BR>" "\n"   |grep "\."  |sort -u >> /tmp/domains.txt & cat /tmp/domains.txt`
+			exec.Command("sh", "-c", cmd3).Output()
+			cmd4 := `cat /tmp/domains.txt`
+			out2, err := exec.Command("sh", "-c", cmd4).Output()
+			if err != nil {
+				fmt.Printf("%s", err)
+			}
+			output2 := string(out2[:])
+			fmt.Println(output2)
+			color.Green("[+] Domains saved to: /tmp/domains.txt")
+			color.Red("+--------------------------------=[Done!]=----------------------------------------+")
+		} else {
+			domain = ""
+			fmt.Println("No command given")
 		}
-		//defer resp.Body.Close()
-		resp.Body.Close()
-		f, err := os.Create("/tmp/output.txt")
-		resp.Write(f)
-		//defer f.Close()
-		f.Close()
-
-	}
-
-	cmd3 := `cat /tpm/output.txt |grep "\." |grep -v "<A style=\|.png\|href=\|&\|{\|crt.sh\|W3C/\|/2.0" |tr "<BR>" "\n"   |grep "\."  |sort -u >> /tmp/domains.txt`
-	out, err := exec.Command("sh", "-c", cmd3).Output()
-	if err != nil {
-		fmt.Printf("%s", err)
 	}
-	output := string(out[:])
-	fmt.Println(output)
-	domi, err := exec.Command("cat", "/tmp/domains.txt").Output()
-	if err != nil {
-		fmt.Printf("%s", err)
-	}
-	outputDomain := string(domi[:])
-	fmt.Println(outputDomain)
-	color.Red("[+] Domains saved to: /tmp/domains.txt")
-	color.Red("+--------------------------------=[Done!]=----------------------------------------+")
 
 }
+func main() {
+	color.Cyan(banner)
+	crtgo()
+}