From 12679081c848ee2a1fc4acb894f81b77c97b56aa Mon Sep 17 00:00:00 2001
From: Reto Brunner <reto@slightlybroken.com>
Date: Thu, 9 May 2024 17:44:58 +0200
Subject: [PATCH] ident: fix write after connection end

We only respond once to data, then half-close the connection.
Hence, we should only listen to a single data event as well,
else if the remote doesn't stop sending data we keep trying to
write to the closed write end of the pipe.
---
 server/identification.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/identification.ts b/server/identification.ts
index 44dff894..2fc1f758 100644
--- a/server/identification.ts
+++ b/server/identification.ts
@@ -66,7 +66,7 @@ class Identification {
 
 	serverConnection(socket: Socket) {
 		socket.on("error", (err: string) => log.error(`Identd socket error: ${err}`));
-		socket.on("data", (data) => {
+		socket.once("data", (data) => {
 			this.respondToIdent(socket, data);
 			socket.end();
 		});