XDNS finalmask: Allow "domain+udp://0.0.0.0:0" for using dialerProxy (#6086)

fanymagnet · web-flow · commit d38ba9d507b4 · 2026-05-09T17:30:08.000Z
Fixes #6046 (comment)
diff --git a/transport/internet/finalmask/xdns/client.go b/transport/internet/finalmask/xdns/client.go
@@ -85,9 +85,9 @@ func NewConnClient(c *Config, raw net.PacketConn) (net.PacketConn, error) {
 		if ip == nil {
 			return nil, errors.New("invalid ip address")
 		}
-		port, _ := strconv.Atoi(p)
-		if port == 0 {
-			return nil, errors.New("invalid port")
+		port, err := strconv.Atoi(p)
+		if err != nil {
+			return nil, errors.New("invalid port").Base(err)
 		}
 		addr := &net.UDPAddr{IP: ip, Port: port}
 		resolverAddrs = append(resolverAddrs, addr)

Original file line number	Diff line number	Diff line change
`@@ -85,9 +85,9 @@ func NewConnClient(c *Config, raw net.PacketConn) (net.PacketConn, error) {`
`85`	`85`	`if ip == nil {`
`86`	`86`	`return nil, errors.New("invalid ip address")`
`87`	`87`	`}`
`88`		`- port, _ := strconv.Atoi(p)`
`89`		`- if port == 0 {`
`90`		`- return nil, errors.New("invalid port")`
	`88`	`+ port, err := strconv.Atoi(p)`
	`89`	`+ if err != nil {`
	`90`	`+ return nil, errors.New("invalid port").Base(err)`
`91`	`91`	`}`
`92`	`92`	`addr := &net.UDPAddr{IP: ip, Port: port}`
`93`	`93`	`resolverAddrs = append(resolverAddrs, addr)`