From c5d8fa83ae702017fc90769dff178fda6a7942a3 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 20 Jun 2021 19:09:46 +0200
Subject: nametransform: pass badname patterns via New

This means we can unexport the field.
---
 cli_args.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'cli_args.go')

diff --git a/cli_args.go b/cli_args.go
index 7743120..ce15448 100644
--- a/cli_args.go
+++ b/cli_args.go
@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"net"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
@@ -290,6 +291,15 @@ func parseCliOpts() (args argContainer) {
 		tlog.Fatal.Printf("Idle timeout cannot be less than 0")
 		os.Exit(exitcodes.Usage)
 	}
+	// Make sure all badname patterns are valid
+	for _, pattern := range args.badname {
+		_, err := filepath.Match(pattern, "")
+		if err != nil {
+			tlog.Fatal.Printf("-badname: invalid pattern %q supplied", pattern)
+			os.Exit(exitcodes.Usage)
+		}
+	}
+
 	return args
 }
 
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