From 5b238c6d0ff7fbd47277ee17ba5db6b4a872890f Mon Sep 17 00:00:00 2001
From: Frederick Widjaja <widjaja.frederick@gmail.com>
Date: Thu, 7 Aug 2025 11:04:32 +0700
Subject: [PATCH] fix: check string for null terminators

---
 src/matroska/ebml.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/matroska/ebml.ts b/src/matroska/ebml.ts
index 1db1f8a..ecc4e8b 100644
--- a/src/matroska/ebml.ts
+++ b/src/matroska/ebml.ts
@@ -499,7 +499,13 @@ export class EBMLReader {
 		const { view, offset } = this.reader.getViewAndOffset(this.pos, this.pos + length);
 		this.pos += length;
 
-		return String.fromCharCode(...new Uint8Array(view.buffer, offset, length));
+		// Actual string length might be shorter due to null terminators
+		let strLength = 0;
+		while (strLength < length && view.getUint8(offset + strLength) !== 0) {
+			strLength += 1;
+		}
+
+		return String.fromCharCode(...new Uint8Array(view.buffer, offset, strLength));
 	}
 
 	readElementId() {