new: asking confirmation when the session is closed with CTRL+C / SIGINT

(closes #319)

main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"strings"
 
 	"github.com/bettercap/bettercap/core"
 	"github.com/bettercap/bettercap/log"
@@ -90,9 +91,20 @@ func main() {
 		if err != nil {
 			if err == io.EOF {
 				continue
+			} else if err.Error() == "Interrupt" {
+				var ans string
+				fmt.Printf("Are you sure you want to quit this session? y/n ")
+				fmt.Scan(&ans)
+
+				if strings.ToLower(ans) == "y" {
+					sess.Run("exit")
+					os.Exit(0)
 				}
+				continue
+			} else {
 				log.Fatal("%s", err)
 			}
+		}
 
 		for _, cmd := range session.ParseCommands(line) {
 			if err = sess.Run(cmd); err != nil {

session/session.go

@@ -347,9 +347,8 @@ func (s *Session) startNetMon() {
 }
 
 func (s *Session) setupSignals() {
-	c := make(chan os.Signal, 1)
+	c := make(chan os.Signal)
-	signal.Notify(c, os.Interrupt)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
-	signal.Notify(c, syscall.SIGTERM)
 	go func() {
 		<-c
 		fmt.Println()