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additional sanity checks to reduce false positive detections.

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morkt
2015-07-09 06:53:55 +04:00
parent ea75aa558b
commit 919ef22202
3 changed files with 7 additions and 4 deletions
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7
ArcFormats/ArcKAAS.cs
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@@ -35,7 +35,7 @@ namespace GameRes.Formats.KAAS
public class PdOpener : ArchiveFormat
{
public override string Tag { get { return "PD/KAAS"; } }
public override string Description { get { return "KAAS engine resource archive"; } }
public override string Description { get { return "KAAS engine PD resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
@@ -100,7 +100,7 @@ namespace GameRes.Formats.KAAS
public class PbOpener : ArchiveFormat
{
public override string Tag { get { return "PB"; } }
public override string Description { get { return "KAAS engine resource archive"; } }
public override string Description { get { return "KAAS engine PB resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
@@ -113,6 +113,7 @@ namespace GameRes.Formats.KAAS
var dir = new List<Entry> (count);
int index_offset = 0x10;
bool is_voice = Path.GetFileName (file.Name).Equals ("voice.pb", StringComparison.InvariantCultureIgnoreCase);
int data_offset = index_offset + 8 * count;
for (int i = 0; i < count; ++i)
{
uint offset = file.View.ReadUInt32 (index_offset);
@@ -122,7 +123,7 @@ namespace GameRes.Formats.KAAS
else
entry = new Entry { Name = string.Format ("{0:D4}.pb", i), Type = "archive", Offset = offset };
entry.Size = file.View.ReadUInt32 (index_offset + 4);
if (!entry.CheckPlacement (file.MaxOffset))
if (offset < data_offset || !entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;