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(Jukkenshitsu): additional sanity checks.

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This commit is contained in:
morkt
2018-12-30 14:13:38 +04:00
parent 45bcfabb75
commit e4bafd6703
1 changed files with 4 additions and 1 deletions
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5
ArcFormats/StudioJikkenshitsu/ImageDAT.cs
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@@ -78,7 +78,7 @@ namespace GameRes.Formats.Jikkenshitsu
if (header.ToInt32 (4) != 0) if (header.ToInt32 (4) != 0)
return null; return null;
int flags = header.ToUInt16 (0); int flags = header.ToUInt16 (0);
if ((flags & ~0xFF) != 0) if ((flags & ~0xFF) != 0 || header[2] != 1)
return null; return null;
var info = new SpMetaData { var info = new SpMetaData {
Width = header.ToUInt16 (0x16), Width = header.ToUInt16 (0x16),
@@ -87,6 +87,9 @@ namespace GameRes.Formats.Jikkenshitsu
Flags = flags, Flags = flags,
Colors = header.ToUInt16 (0x1E), Colors = header.ToUInt16 (0x1E),
}; };
if (info.Width == 0 || info.Width > 0x2000 || info.Height == 0 || info.Height > 0x2000 ||
info.Colors > 0x100)
return null;
if (info.IsEncrypted) if (info.IsEncrypted)
{ {
if (null == DefaultKey) if (null == DefaultKey)