From 12d0bc6e3a6f576111dc21d03afeb59af571bbe0 Mon Sep 17 00:00:00 2001
From: Josh Wolfe <thejoshwolfe@gmail.com>
Date: Sun, 3 Jun 2018 18:55:42 -0400
Subject: [PATCH] fromBuffer limits maxChunkSize. closes #87

---
 README.md    | 3 ++-
 index.js     | 4 ++--
 package.json | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 190f549..cc5a0c2 100644
--- a/README.md
+++ b/README.md
@@ -594,8 +594,9 @@ This library makes no attempt to interpret the Language Encoding Flag.
 
 ## Change History
 
- * 2.10.0
+ * 2.9.2
    * Removed `tools/hexdump-zip.js` and `tools/hex2bin.js`. Those tools are now located here: [thejoshwolfe/hexdump-zip](https://github.com/thejoshwolfe/hexdump-zip) and [thejoshwolfe/hex2bin](https://github.com/thejoshwolfe/hex2bin)
+   * Worked around performance problem with zlib when using `fromBuffer()` and `readStream.destroy()` for large compressed files. [issue #87](https://github.com/thejoshwolfe/yauzl/issues/87)
  * 2.9.1
    * Removed `console.log()` accidentally introduced in 2.9.0. [issue #64](https://github.com/thejoshwolfe/yauzl/issues/64)
  * 2.9.0
diff --git a/index.js b/index.js
index 4681cf2..780633b 100644
--- a/index.js
+++ b/index.js
@@ -66,8 +66,8 @@ function fromBuffer(buffer, options, callback) {
   if (options.lazyEntries == null) options.lazyEntries = false;
   if (options.decodeStrings == null) options.decodeStrings = true;
   if (options.validateEntrySizes == null) options.validateEntrySizes = true;
-  // i got your open file right here.
-  var reader = fd_slicer.createFromBuffer(buffer);
+  // limit the max chunk size. see https://github.com/thejoshwolfe/yauzl/issues/87
+  var reader = fd_slicer.createFromBuffer(buffer, {maxChunkSize: 0x10000});
   fromRandomAccessReader(reader, buffer.length, options, callback);
 }
 
diff --git a/package.json b/package.json
index 800621d..0c011e0 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   },
   "homepage": "https://github.com/thejoshwolfe/yauzl",
   "dependencies": {
-    "fd-slicer": "~1.0.1",
+    "fd-slicer": "~1.1.0",
     "buffer-crc32": "~0.2.3"
   },
   "devDependencies": {