修复了macos下ipv6不能指定dev的问题

trace/icmp_ipv6.go

@@ -10,7 +10,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/xgadget-lab/nexttrace/trace/internal"
 	"golang.org/x/net/context"
 	"golang.org/x/net/icmp"
 	"golang.org/x/net/ipv6"
@@ -66,7 +65,7 @@ func (t *ICMPTracerv6) Execute() (*Result, error) {
 
 	var err error
 
-	t.icmpListen, err = internal.ListenICMP("ip6:58", t.SrcAddr)
+	t.icmpListen, err = net.ListenPacket("ip6:58", t.SrcAddr)
 	if err != nil {
 		return &t.res, err
 	}

trace/internal/icmp_darwin.go

@@ -28,6 +28,7 @@ var (
 	}
 )
 
+// 会造成指定出口IP功能不可使用
 func ListenICMP(network string, laddr string) (net.PacketConn, error) {
 	if os.Getuid() == 0 { // root
 		return net.ListenPacket(network, laddr)