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Add simple Endian check in PCKFileReader

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This commit is contained in:
miku-666
2022-07-30 22:15:37 +02:00
parent 0759bf53c9
commit 6a24653f25
1 changed files with 10 additions and 5 deletions
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15
MinecraftUSkinEditor/Classes/IO/PCK/PCKFileReader.cs
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@@ -25,14 +25,17 @@ namespace PckStudio.Classes.IO
private PCKFile ReadFileFromStream(Stream stream)
{
_file = new PCKFile(ReadInt(stream));
int pck_type = ReadInt(stream);
if (pck_type > 0xf00000) // 03 00 00 00 == true
throw new OverflowException(nameof(pck_type));
_file = new PCKFile(pck_type);
ReadLookUpTabel(stream);
ReadFileEntries(stream);
ReadFileContents(stream);
return _file;
}
internal void ReadLookUpTabel(Stream stream)
private void ReadLookUpTabel(Stream stream)
{
int count = ReadInt(stream);
LUT = new List<string>(count);
@@ -46,7 +49,7 @@ namespace PckStudio.Classes.IO
Console.WriteLine(ReadInt(stream)); // xml version num ??
}
internal void ReadFileEntries(Stream stream)
private void ReadFileEntries(Stream stream)
{
int file_entry_count = ReadInt(stream);
for (; 0 < file_entry_count; file_entry_count--)
@@ -58,7 +61,8 @@ namespace PckStudio.Classes.IO
_file.Files.Add(entry);
}
}
internal void ReadFileContents(Stream stream)
private void ReadFileContents(Stream stream)
{
_file.Files.ForEach( file => {
int property_count = ReadInt(stream);
@@ -71,7 +75,8 @@ namespace PckStudio.Classes.IO
stream.Read(file.data, 0, file.size);
});
}
internal string ReadString(Stream stream)
private string ReadString(Stream stream)
{
int len = ReadInt(stream);
string s = ReadString(stream, len, IsUsingLittleEndian ? Encoding.Unicode : Encoding.BigEndianUnicode);