From a018a23b6b70d6bd543fcc7d4999c83296358d8f Mon Sep 17 00:00:00 2001
From: Manuel Araoz <manuelaraoz@gmail.com>
Date: Thu, 30 Apr 2015 03:24:15 -0300
Subject: [PATCH] fix bug in recognizing p2sh input scripts

---
 lib/script/script.js  | 2 +-
 test/script/script.js | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/script/script.js b/lib/script/script.js
index 3f8f769..691c6f7 100644
--- a/lib/script/script.js
+++ b/lib/script/script.js
@@ -296,7 +296,7 @@ Script.prototype.isScriptHashOut = function() {
  * Note that these are frequently indistinguishable from pubkeyhashin
  */
 Script.prototype.isScriptHashIn = function() {
-  if (this.chunks.length === 0) {
+  if (this.chunks.length <= 1) {
     return false;
   }
   var redeemChunk = this.chunks[this.chunks.length - 1];
diff --git a/test/script/script.js b/test/script/script.js
index 0a0cb6d..14cf12c 100644
--- a/test/script/script.js
+++ b/test/script/script.js
@@ -322,6 +322,10 @@ describe('Script', function() {
       s.isScriptHashIn().should.equal(false);
       s2.isScriptHashIn().should.equal(false);
     });
+    it('identifies this other problematic non-p2sh in', function() {
+      var s = Script.fromString('73 0x3046022100dc7a0a812de14acc479d98ae209402cc9b5e0692bc74b9fe0a2f083e2f9964b002210087caf04a711bebe5339fd7554c4f7940dc37be216a3ae082424a5e164faf549401');
+      s.isScriptHashIn().should.equal(false);
+    });
   });
 
   describe('#isScripthashOut', function() {