v1-0001-Reject-incoming-username-and-database-name-in-cas.patch

From 1a40e13385752ef05b9602d1040e73dbb14d0c7e Mon Sep 17 00:00:00 2001
From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Date: Wed, 21 Jun 2023 18:28:13 +0000
Subject: [PATCH v1] Reject incoming username and database name in case of
 overlength

---
 src/backend/postmaster/postmaster.c | 9 ---------
 1 file changed, 9 deletions(-)
 100.0% src/backend/postmaster/

diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 4c49393fc5..0b1de9efb2 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -2290,15 +2290,6 @@ retry1:
 		}
 	}
 
-	/*
-	 * Truncate given database and user names to length of a Postgres name.
-	 * This avoids lookup failures when overlength names are given.
-	 */
-	if (strlen(port->database_name) >= NAMEDATALEN)
-		port->database_name[NAMEDATALEN - 1] = '\0';
-	if (strlen(port->user_name) >= NAMEDATALEN)
-		port->user_name[NAMEDATALEN - 1] = '\0';
-
 	if (am_walsender)
 		MyBackendType = B_WAL_SENDER;
 	else
-- 
2.34.1