recordlookup.go

recordlookup.go

package main

import (
    "bufio"
    "fmt"
    "log"
    "os"
    "strings"
	"regexp"
)

var (
path_ip = "ips.txt"
path_record = "records.txt"
)
func find_in_records(needle string,full_line string){
  file, err := os.Open(path_record)

  if err != nil {
      log.Fatal(err)
  }
  defer file.Close()

  scanner := bufio.NewScanner(file)

  for scanner.Scan() {
	line:= scanner.Text()
    
    if strings.Contains(line,needle) {
	  result_line := line + full_line
	  result_line = strings.Replace(result_line,needle,"",2)
	  result_line = strings.Replace(result_line,"Ports:","",2)

	  
      fmt.Println(result_line + "\n\n")
      break

    }else{
      //fmt.Println("not match: " + needle + " at line: " +line)
    }

  }

  if err := scanner.Err(); err != nil {
      log.Fatal(err)
  }
}
func execute_find() {
    file, err := os.Open(path_ip )

    if err != nil {
        log.Fatal(err)
    }
    defer file.Close()

    scanner := bufio.NewScanner(file)
	
	re := regexp.MustCompile(`(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}`)

    for scanner.Scan() {
      line:= scanner.Text()
      
	  submatchall := re.FindAllString(line, -1)
	  
	  if re.MatchString(line){
		each_ip := submatchall[0]
		find_in_records(each_ip,line)
	  }
	  
    }

    if err := scanner.Err(); err != nil {
        log.Fatal(err)
    }
}

func main(){
   execute_find()
}