From 302bbe81ba17670b556f0d52c6bfb28112a840ab Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Tue, 5 Jan 2016 02:38:04 +1100
Subject: [PATCH] script_number: refactor to mimic bitcoin/bitcoin
---
src/script_number.js | 20 ++++----------------
1 file changed, 4 insertions(+), 16 deletions(-)
diff --git a/src/script_number.js b/src/script_number.js
index f2db26b..5177a8c 100644
--- a/src/script_number.js
+++ b/src/script_number.js
@@ -20,23 +20,11 @@ function decode (buffer, maxLength, minimal) {
if (b & 0x80) return -((b & ~0x80) * 0x100000000 + a)
return b * 0x100000000 + a
+ }
- // 32-bit
- } else if (length === 4) {
- result = buffer.readUInt32LE(0)
-
- // 24-bit
- } else if (length === 3) {
- result = buffer.readUInt16LE(0)
- result |= buffer.readUInt8(2) << 16
-
- // 16-bit
- } else if (length === 2) {
- result = buffer.readUInt16LE(0)
-
- // 8-bit
- } else {
- result = buffer.readUInt8(0)
+ // 32-bit / 24-bit / 16-bit / 8-bit
+ for (var i = 0; i < length; ++i) {
+ result |= buffer[i] << (8 * i)
}
if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))