From c888156a424dbaadab05dd4997908019463f1cd3 Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Tue, 17 Feb 2026 15:22:22 +0300
Subject: [PATCH] meta4ra-url-sort -6

---
 cmd/sort.go        | 13 +++++++++++++
 internal/common.go |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/cmd/sort.go b/cmd/sort.go
index b36f2ba..9a522ee 100644
--- a/cmd/sort.go
+++ b/cmd/sort.go
@@ -21,6 +21,8 @@ import (
 	"fmt"
 	"log"
 	"math/rand/v2"
+	"net"
+	"net/url"
 	"os"
 	"sort"
 	"strings"
@@ -70,6 +72,7 @@ func (by ByCC) Swap(i, j int) {
 }
 
 func runURLSort() {
+	ipv6 := flag.Bool("6", false, "Only IPv6-capable hostnames")
 	flag.Usage = func() {
 		fmt.Fprintf(flag.CommandLine.Output(),
 			"Usage: %s [options] [cc ...] <urls.txt\n", os.Args[0])
@@ -138,6 +141,16 @@ then Europe, then North America, then location-less, randomise remaining:
 		if u.Priority == 999999 {
 			u.Priority = 0
 		}
+		if *ipv6 {
+			parsed, err := url.Parse(u.URL)
+			if err != nil {
+				continue
+			}
+			_, err = net.ResolveIPAddr("ip6", parsed.Hostname())
+			if err != nil {
+				continue
+			}
+		}
 		fmt.Println(u)
 	}
 }
diff --git a/internal/common.go b/internal/common.go
index 1c19d50..85a7116 100644
--- a/internal/common.go
+++ b/internal/common.go
@@ -21,7 +21,7 @@ import (
 )
 
 const (
-	Generator       = "meta4ra/1.0.0"
+	Generator       = "meta4ra/1.1.0"
 	SigMediaTypePGP = "application/pgp-signature"
 	SigMediaTypeSSH = "application/ssh-signature"
 	BufLen          = 1 << 20
-- 
2.52.0