enable revive linter

udpproxy.go

@@ -1,12 +1,16 @@
+// Package udpproxy implements a simple UDP proxy server that forwards rcon and query packets between clients and a target server.
 package udpproxy
 
 import (
+	"fmt"
 	"net"
 	"time"
 
 	log "github.com/sirupsen/logrus"
 )
 
+// Client represents a UDP proxy server that forwards rcon and query packets between clients and a target server.
+// It maintains a session cache to manage client sessions and handles packet forwarding between clients and the target server.
 type Client struct {
 	laddr *net.UDPAddr
 	raddr *net.UDPAddr
@@ -17,15 +21,16 @@ type Client struct {
 	sessionTimeout time.Duration
 }
 
+// New creates a new Client with the specified proxy and target addresses, and applies any provided options.
 func New(proxy, target string, options ...Option) (*Client, error) {
 	laddr, err := net.ResolveUDPAddr("udp", proxy)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("invalid proxy address: %w", err)
 	}
 
 	raddr, err := net.ResolveUDPAddr("udp", target)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("invalid target address: %w", err)
 	}
 
 	c := &Client{
@@ -42,11 +47,13 @@ func New(proxy, target string, options ...Option) (*Client, error) {
 	return c, nil
 }
 
+// ListenAndServe starts the UDP proxy server and listens for incoming packets from clients.
+// It reads packets from the proxy connection, checks for existing sessions, and forwards packets to the target server.
 func (c *Client) ListenAndServe() error {
 	var err error
 	c.proxyConn, err = net.ListenUDP("udp", c.laddr)
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to listen on proxy address: %w", err)
 	}
 
 	go c.pruneSessions()