From 71d701325520671933676dc7ae66349cec3b3925 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sun, 15 Dec 2019 16:42:24 +0100
Subject: [PATCH] - better validation checks for CSV-based string files.

---
 src/gamedata/stringtable.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gamedata/stringtable.cpp b/src/gamedata/stringtable.cpp
index c3700cdf9e..6fd78a7034 100644
--- a/src/gamedata/stringtable.cpp
+++ b/src/gamedata/stringtable.cpp
@@ -193,7 +193,8 @@ bool FStringTable::readMacros(int lumpnum)
 
 bool FStringTable::ParseLanguageCSV(int lumpnum, const TArray<uint8_t> &buffer)
 {
-	if (memcmp(buffer.Data(), "default,", 8)) return false;
+	if (buffer.Size() < 11) return false;
+	if (strnicmp(buffer.Data(), "default,", 8) && strnicmp(buffer.Data(), "identifier,", 11 ) return false;
 	auto data = parseCSV(buffer);
 
 	int labelcol = -1;