From 0300565af933e705452e35a68b8befbb3afac719 Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna@addaleax.net>
Date: Wed, 1 Nov 2017 00:37:51 +0100
Subject: zlib: warn before crash on invalid internals usage
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

PR-URL: https://github.com/nodejs/node/pull/16657
Refs: https://github.com/nodejs/node/issues/16649
Refs: https://github.com/nodejs/node/issues/14161
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
---
 src/node_zlib.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/node_zlib.cc')

diff --git a/src/node_zlib.cc b/src/node_zlib.cc
index 067e8d96a0..01f713afd7 100644
--- a/src/node_zlib.cc
+++ b/src/node_zlib.cc
@@ -422,6 +422,16 @@ class ZCtx : public AsyncWrap {
 
   // just pull the ints out of the args and call the other Init
   static void Init(const FunctionCallbackInfo<Value>& args) {
+    // Refs: https://github.com/nodejs/node/issues/16649
+    // Refs: https://github.com/nodejs/node/issues/14161
+    if (args.Length() == 5) {
+      fprintf(stderr,
+          "WARNING: You are likely using a version of node-tar or npm that "
+          "is incompatible with this version of Node.js.\nPlease use "
+          "either the version of npm that is bundled with Node.js, or "
+          "a version of npm (> 5.5.1 or < 5.4.0) or node-tar (> 4.0.1) "
+          "that is compatible with Node.js 9 and above.\n");
+    }
     CHECK(args.Length() == 7 &&
       "init(windowBits, level, memLevel, strategy, writeResult, writeCallback,"
       " dictionary)");
-- 
cgit v1.2.3