From 8a1cdad62bd31f2aac4824ff2a7b1d4da3f36e85 Mon Sep 17 00:00:00 2001
From: Alex Kocharin <alex@kocharin.ru>
Date: Fri, 10 Jun 2022 17:12:14 +0300
Subject: [PATCH] Fix deflateEnd() to not report an error at start of raw
 deflate.

https://github.com/madler/zlib/commit/c376a417a724c21173f40765bd643388523b16f7
---
 lib/zlib/deflate.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/zlib/deflate.js b/lib/zlib/deflate.js
index b932d31..7165d02 100644
--- a/lib/zlib/deflate.js
+++ b/lib/zlib/deflate.js
@@ -1589,6 +1589,9 @@ const deflate = (strm, flush) => {
   }
 
   /* Write the header */
+  if (s.status === INIT_STATE && s.wrap === 0) {
+    s.status = BUSY_STATE;
+  }
   if (s.status === INIT_STATE) {
     /* zlib header */
     let header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8;