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[IArchive] Use IFilter for Identify() and Open().

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This commit is contained in:
Natalia Portillo
2023-10-06 13:53:05 +01:00
parent 5d9b929882
commit 8eb784d4e7
3 changed files with 9 additions and 20 deletions
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25
Aaru.Archives/Symbian/Info.cs
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@@ -31,6 +31,7 @@
// ****************************************************************************/
using System.IO;
using Aaru.CommonTypes.Interfaces;
using Aaru.Helpers;
namespace Aaru.Archives;
@@ -39,30 +40,18 @@ public partial class Symbian
{
#region IArchive Members
public bool Identify(byte[] buffer)
{
if(buffer.Length < Marshal.SizeOf<SymbianHeader>())
return false;
SymbianHeader header = Marshal.ByteArrayToStructureLittleEndian<SymbianHeader>(buffer);
if(header.uid1 == SYMBIAN9_MAGIC)
return true;
if(header.uid3 != SYMBIAN_MAGIC)
return false;
return header.uid2 is EPOC_MAGIC or EPOC6_MAGIC;
}
/// <inheritdoc />
public bool Identify(Stream stream)
public bool Identify(IFilter filter)
{
if(stream.Length < Marshal.SizeOf<SymbianHeader>())
if(filter.DataForkLength < Marshal.SizeOf<SymbianHeader>())
return false;
Stream stream = filter.GetDataForkStream();
var hdr = new byte[Marshal.SizeOf<SymbianHeader>()];
stream.EnsureRead(hdr, 0, hdr.Length);
SymbianHeader header = Marshal.ByteArrayToStructureLittleEndian<SymbianHeader>(hdr);
if(header.uid1 == SYMBIAN9_MAGIC)