From 21d74498518a600f9ad2124cb4da23d721b7fb41 Mon Sep 17 00:00:00 2001
From: KokaKiwi <kokakiwi+tor@kokakiwi.net>
Date: Fri, 14 Oct 2022 21:40:07 +0200
Subject: [PATCH] proxy: Check ephemeral port range ordering at flag parsing

---
 proxy/main.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/proxy/main.go b/proxy/main.go
index 146a1f3..ea8f427 100644
--- a/proxy/main.go
+++ b/proxy/main.go
@@ -54,6 +54,9 @@ func main() {
 			if ephemeralMinPort == 0 || ephemeralMaxPort == 0 {
 				log.Fatal("Ephemeral port cannot be zero")
 			}
+			if ephemeralMinPort > ephemeralMaxPort {
+				log.Fatal("Invalid port range: min > max")
+			}
 
 			ephemeralPortsRange = []uint16{uint16(ephemeralMinPort), uint16(ephemeralMaxPort)}
 		} else {