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(LST): fixed decryption for names containing characters identical to encryption key.

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This commit is contained in:
morkt 2018-01-11 20:22:53 +04:00
parent eb8e7598a0
commit 2d389ec528
1 changed files with 6 additions and 4 deletions
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10
ArcFormats/ArcLST.cs
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@ -81,7 +81,7 @@ namespace GameRes.Formats.Nexton
uint index_offset = 4; uint index_offset = 4;
for (int i = 0; i < count; ++i) for (int i = 0; i < count; ++i)
{ {
string name = ReadName (lst, index_offset+8, 0x24, 0xcccccccc, cp932); string name = ReadName (lst, index_offset+8, 0x24, 0xcc, cp932);
if (0 == name.Length) if (0 == name.Length)
return null; return null;
var entry = FormatCatalog.Instance.Create<Entry> (name); var entry = FormatCatalog.Instance.Create<Entry> (name);
@ -112,7 +112,7 @@ namespace GameRes.Formats.Nexton
uint index_offset = 4; uint index_offset = 4;
for (int i = 0; i < count; ++i) for (int i = 0; i < count; ++i)
{ {
string name = ReadName (lst, index_offset+8, 0x40, key, cp932); string name = ReadName (lst, index_offset+8, 0x40, (byte)key, cp932);
if (0 == name.Length) if (0 == name.Length)
return null; return null;
var entry = new NextonEntry { var entry = new NextonEntry {
@ -153,7 +153,7 @@ namespace GameRes.Formats.Nexton
return new BinMemoryStream (data, entry.Name); return new BinMemoryStream (data, entry.Name);
} }
private static string ReadName (ArcView view, long offset, uint size, uint key, Encoding enc) private static string ReadName (ArcView view, long offset, uint size, byte key, Encoding enc)
{ {
byte[] buffer = new byte[size]; byte[] buffer = new byte[size];
uint n; uint n;
@ -162,7 +162,9 @@ namespace GameRes.Formats.Nexton
byte b = view.View.ReadByte (offset+n); byte b = view.View.ReadByte (offset+n);
if (0 == b) if (0 == b)
break; break;
buffer[n] = (byte)(b^key); if (b != key)
b ^= key;
buffer[n] = b;
} }
return enc.GetString (buffer, 0, (int)n); return enc.GetString (buffer, 0, (int)n);
} }