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(GetScheme): fixed potential bug when looking up unknown encryption scheme.

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This commit is contained in:
morkt 2014-09-09 01:04:27 +04:00
parent 1c5008d799
commit 12df1dcdfd
1 changed files with 3 additions and 5 deletions
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8
ArcFormats/ArcXP3.cs
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@ -290,11 +290,9 @@ NextEntry:
public static ICrypt GetScheme (string scheme)
{
ICrypt algorithm = NoCryptAlgorithm;
if (!string.IsNullOrEmpty (scheme))
{
KnownSchemes.TryGetValue (scheme, out algorithm);
}
ICrypt algorithm;
if (string.IsNullOrEmpty (scheme) || !KnownSchemes.TryGetValue (scheme, out algorithm))
algorithm = NoCryptAlgorithm;
return algorithm;
}