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(RPM): additional sanity check.

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This commit is contained in:
morkt 2018-09-27 18:25:12 +04:00
parent b7897b0d62
commit 2d3464535b
1 changed files with 7 additions and 1 deletions
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8
ArcFormats/RPM/ArcARC.cs
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@ -59,6 +59,7 @@ namespace GameRes.Formats.Rpm
} }
[Export(typeof(ArchiveFormat))] [Export(typeof(ArchiveFormat))]
[ExportMetadata("Priority", -2)]
public class ArcOpener : ArchiveFormat public class ArcOpener : ArchiveFormat
{ {
public override string Tag { get { return "ARC/RPM"; } } public override string Tag { get { return "ARC/RPM"; } }
@ -94,9 +95,14 @@ namespace GameRes.Formats.Rpm
var index_reader = new ArcIndexReader (file, count, is_compressed != 0); var index_reader = new ArcIndexReader (file, count, is_compressed != 0);
var scheme = index_reader.GuessScheme (8, new int[] { 0x20, 0x18 }); var scheme = index_reader.GuessScheme (8, new int[] { 0x20, 0x18 });
// additional filename extension check avoids dialog popup on false positives // additional checks to avoid dialog popup on false positives
if (null == scheme && KnownSchemes.Count > 0 && file.Name.HasExtension (".arc")) if (null == scheme && KnownSchemes.Count > 0 && file.Name.HasExtension (".arc"))
{
var first_entry = file.View.ReadBytes (8, 0x20);
if (-1 == Array.FindIndex (first_entry, x => x != 0))
return null;
scheme = QueryScheme(); scheme = QueryScheme();
}
if (null == scheme) if (null == scheme)
return null; return null;