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ScriptBuilder: Fix number encoding for 16. It must be encoded with smallNum().

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This commit is contained in:
Thomas König
2017-04-05 14:47:45 +02:00
committed by Andreas Schildbach
parent e51428dcf6
commit b890c9a9a1
2 changed files with 13 additions and 2 deletions
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4
core/src/main/java/org/bitcoinj/script/ScriptBuilder.java
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@@ -112,7 +112,7 @@ public class ScriptBuilder {
* shortest encoding possible.
*/
public ScriptBuilder number(long num) {
if (num >= 0 && num < 16) {
if (num >= 0 && num <= 16) {
return smallNum((int) num);
} else {
return bigNum(num);
@@ -124,7 +124,7 @@ public class ScriptBuilder {
* uses shortest encoding possible.
*/
public ScriptBuilder number(int index, long num) {
if (num >= 0 && num < 16) {
if (num >= 0 && num <= 16) {
return addChunk(index, new ScriptChunk(Script.encodeToOpN((int) num), null));
} else {
return bigNum(index, num);

11
core/src/test/java/org/bitcoinj/script/ScriptTest.java
View File

@@ -1,6 +1,7 @@
/*
* Copyright 2011 Google Inc.
* Copyright 2014 Andreas Schildbach
* Copyright 2017 Thomas König
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -491,4 +492,14 @@ public class ScriptTest {
((byte) 133) // Pushed data
}, builder.build().getProgram());
}
@Test
public void numberBuilder16() {
ScriptBuilder builder = new ScriptBuilder();
// Numbers greater than 16 must be encoded with PUSHDATA
builder.number(15).number(16).number(17);
builder.number(0, 17).number(1, 16).number(2, 15);
Script script = builder.build();
assertEquals("PUSHDATA(1)[11] 16 15 15 16 PUSHDATA(1)[11]", script.toString());
}
}