oss/RomPatcher.js
oss/RomPatcher.js
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fixed UPS patch checksum when saving

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Marc Robledo 2017-07-23 12:33:34 +02:00
parent 2a1a1c4d07
commit ad3bbb54c7
1 changed files with 3 additions and 7 deletions
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10
ups.js
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@ -1,4 +1,4 @@
/* UPS module for RomPatcher.js v20170721 - Marc Robledo 2017 - http://www.marcrobledo.com/license */ /* UPS module for RomPatcher.js v20170723 - Marc Robledo 2017 - http://www.marcrobledo.com/license */
/* File format specification: http://www.romhacking.net/documents/392/ */ /* File format specification: http://www.romhacking.net/documents/392/ */
var UPS_MAGIC='UPS1'; var UPS_MAGIC='UPS1';
@ -9,7 +9,6 @@ function UPS(){
this.sizeOutput=0; this.sizeOutput=0;
this.checksumInput=0; this.checksumInput=0;
this.checksumOutput=0; this.checksumOutput=0;
this.checksumPatch=0;
} }
UPS.prototype.addRecord=function(o, d){ UPS.prototype.addRecord=function(o, d){
this.records.push({offset:o, XORdata:d}) this.records.push({offset:o, XORdata:d})
@ -20,7 +19,6 @@ UPS.prototype.toString=function(){
s+='\nOutput file size: '+this.sizeOutput; s+='\nOutput file size: '+this.sizeOutput;
s+='\nInput file checksum: '+this.checksumInput; s+='\nInput file checksum: '+this.checksumInput;
s+='\nOutput file checksum: '+this.checksumOutput; s+='\nOutput file checksum: '+this.checksumOutput;
s+='\nPatch file checksum: '+this.checksumPatch;
return s return s
} }
UPS.prototype.export=function(){ UPS.prototype.export=function(){
@ -58,7 +56,7 @@ UPS.prototype.export=function(){
tempFile.littleEndian=true; tempFile.littleEndian=true;
tempFile.writeInt(seek, this.checksumInput); tempFile.writeInt(seek, this.checksumInput);
tempFile.writeInt(seek+4, this.checksumOutput); tempFile.writeInt(seek+4, this.checksumOutput);
tempFile.writeInt(seek+8, this.checksumPatch); tempFile.writeInt(seek+8, crc32(tempFile, true));
return tempFile return tempFile
} }
@ -159,9 +157,8 @@ function readUPSFile(file){
file.littleEndian=true; file.littleEndian=true;
patchFile.checksumInput=tempFile.readInt(seek); patchFile.checksumInput=tempFile.readInt(seek);
patchFile.checksumOutput=tempFile.readInt(seek+4); patchFile.checksumOutput=tempFile.readInt(seek+4);
patchFile.checksumPatch=tempFile.readInt(seek+8);
if(patchFile.checksumPatch!==crc32(file, true)){ if(tempFile.readInt(seek+8)!==crc32(file, true)){
MarcDialogs.alert('Invalid patch checksum'); MarcDialogs.alert('Invalid patch checksum');
} }
return patchFile; return patchFile;
@ -203,6 +200,5 @@ function createUPSFromFiles(original, modified){
tempFile.checksumInput=crc32(original); tempFile.checksumInput=crc32(original);
tempFile.checksumOutput=crc32(modified); tempFile.checksumOutput=crc32(modified);
//tempFile.checksumPatch=crc32(tempFile.export(), true);
return tempFile return tempFile
} }