lifegpc/GARbro-crskycode
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2026-06-06 05:38:48 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix: old archive type of RPM system

Browse Source
This commit is contained in:
scientificworld
2026-04-15 01:12:48 +08:00
parent 37d8412a54
commit ebb27bd9f6
2 changed files with 21 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
ArcFormats/RPM/ArcARC.cs
View File

@@ -44,11 +44,13 @@ namespace GameRes.Formats.Rpm
{
public string Keyword;
public int NameLength;
public int IndexOffset;
public EncryptionScheme (string key, int name_length = 32)
public EncryptionScheme (string key, int name_length = 32, int index_offset = 8)
{
Keyword = key;
NameLength = name_length;
IndexOffset = index_offset;
}
}
@@ -82,22 +84,26 @@ namespace GameRes.Formats.Rpm
}
/// <summary>Minimum entry length across all possible archive schemes.</summary>
const int MinEntryLength = 0x24;
const int MinEntryLength = 0x1C;
// largest size should be first
static readonly int[] PossibleNameSizes = new[] { 0x20, 0x18 };
static readonly int[] PossibleNameSizes = new[] { 0x20, 0x18, 0x10 };
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count) || 8 + count * MinEntryLength >= file.MaxOffset)
return null;
uint is_compressed = file.View.ReadUInt32 (4);
if (is_compressed > 1) // should be either 0 or 1
if (!IsSaneCount (count) || 4 + count * MinEntryLength >= file.MaxOffset)
return null;
var index_reader = new ArcIndexReader (file, count, is_compressed != 0);
var scheme = index_reader.GuessScheme (8, PossibleNameSizes);
uint is_compressed = 1;
var index_reader = new ArcIndexReader (file, count);
var scheme = index_reader.GuessScheme (4, PossibleNameSizes);
if (null == scheme)
{
is_compressed = file.View.ReadUInt32 (4);
if (is_compressed <= 1) // should be either 0 or 1
scheme = index_reader.GuessScheme (8, PossibleNameSizes);
}
// additional checks to avoid dialog popup on false positives
if (null == scheme && KnownSchemes.Count > 0 && file.Name.HasExtension (".arc"))
{
@@ -114,7 +120,7 @@ namespace GameRes.Formats.Rpm
&& VFS.IsPathEqualsToFileName (file.Name, "instdata.arc"))
scheme = new EncryptionScheme ("inst", scheme.NameLength);
var dir = index_reader.ReadIndex (8, scheme);
var dir = index_reader.ReadIndex (scheme, scheme.IndexOffset > 4 ? is_compressed != 0 : true);
if (null == dir)
return null;
return new ArcFile (file, this, dir);
@@ -161,17 +167,16 @@ namespace GameRes.Formats.Rpm
{
ArcView m_file;
int m_count;
bool m_is_compressed;
public ArcIndexReader (ArcView file, int count, bool is_compressed)
public ArcIndexReader (ArcView file, int count)
{
m_file = file;
m_count = count;
m_is_compressed = is_compressed;
}
public List<Entry> ReadIndex (long offset, EncryptionScheme scheme)
public List<Entry> ReadIndex (EncryptionScheme scheme, bool is_compressed)
{
long offset = scheme.IndexOffset;
int index_size = m_count * (scheme.NameLength + 12);
var index = m_file.View.ReadBytes (offset, (uint)index_size);
if (index.Length != index_size)
@@ -192,7 +197,7 @@ namespace GameRes.Formats.Rpm
entry.UnpackedSize = LittleEndian.ToUInt32 (index, index_offset);
entry.Size = LittleEndian.ToUInt32 (index, index_offset+4);
entry.Offset = LittleEndian.ToUInt32 (index, index_offset+8);
entry.IsPacked = m_is_compressed;
entry.IsPacked = is_compressed;
if (0 != entry.Size)
{
if (entry.Offset < data_offset || !entry.CheckPlacement (m_file.MaxOffset))
@@ -247,7 +252,7 @@ namespace GameRes.Formats.Rpm
key[(second_match+i) % key_length] = sym;
}
if (i == key_length)
return new EncryptionScheme (Encoding.ASCII.GetString (key), name_length);
return new EncryptionScheme (Encoding.ASCII.GetString (key), name_length, index_offset);
}
return null;
}

56
ArcFormats/RPM/ArcZENOS.cs
View File

@@ -1,56 +0,0 @@
//! \file ArcZENOS.cs
//! \date 2017 Nov 21
//! \brief Zenos resource archive format.
//
// Copyright (C) 2017 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System.ComponentModel.Composition;
namespace GameRes.Formats.Rpm
{
[Export(typeof(ArchiveFormat))]
public class ZenosOpener : ArcOpener
{
public override string Tag { get { return "ARC/ZENOS"; } }
public override string Description { get { return "Zenos resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count) || 4 + count * 0x1C >= file.MaxOffset)
return null;
var index_reader = new ArcIndexReader (file, count, true);
// var scheme = new EncryptionScheme ("haku", 0x10);
var scheme = index_reader.GuessScheme (4, new int[] { 0x10 });
if (null == scheme)
return null;
var dir = index_reader.ReadIndex (4, scheme);
if (null == dir)
return null;
return new ArcFile (file, this, dir);
}
}
}