From 57df19b6e08bb7615011c6c9dc9759b9477b1f6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rimas=20Misevi=C4=8Dius?= <rmisev3@gmail.com>
Date: Wed, 27 Sep 2017 11:51:35 +0300
Subject: [PATCH] url: fix remaining calculation

Fix remaining calculation in the PercentDecode function to match the
definition in URL standard: https://url.spec.whatwg.org/#remaining

PR-URL: https://github.com/nodejs/node/pull/15637
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
---
 src/node_url.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/node_url.cc b/src/node_url.cc
index e23c1e6cbf2885..c8a4427eb60fb9 100644
--- a/src/node_url.cc
+++ b/src/node_url.cc
@@ -518,7 +518,7 @@ static inline void PercentDecode(const char* input,
 
   while (pointer < end) {
     const char ch = pointer[0];
-    size_t remaining = (end - pointer) + 1;
+    const size_t remaining = end - pointer - 1;
     if (ch != '%' || remaining < 2 ||
         (ch == '%' &&
          (!IsASCIIHexDigit(pointer[1]) ||