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sfdnsres; Fix deserializer of AddrInfoSerialized when addresses are empty (#3924)

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Ac_K 2022-11-28 02:53:57 +01:00 committed by GitHub
parent 1865ea87e5
commit 472119c8da
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3 changed files with 13 additions and 5 deletions
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8
Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/IResolver.cs
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@ -566,7 +566,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
private static List<AddrInfoSerialized> DeserializeAddrInfos(IVirtualMemoryManager memory, ulong address, ulong size) private static List<AddrInfoSerialized> DeserializeAddrInfos(IVirtualMemoryManager memory, ulong address, ulong size)
{ {
List<AddrInfoSerialized> result = new List<AddrInfoSerialized>(); List<AddrInfoSerialized> result = new();
ReadOnlySpan<byte> data = memory.GetSpan(address, (int)size); ReadOnlySpan<byte> data = memory.GetSpan(address, (int)size);
@ -606,9 +606,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
} }
// NOTE: 0 = Any // NOTE: 0 = Any
AddrInfoSerializedHeader header = new AddrInfoSerializedHeader(ip, 0); AddrInfoSerializedHeader header = new(ip, 0);
AddrInfo4 addr = new AddrInfo4(ip, (short)port); AddrInfo4 addr = new(ip, (short)port);
AddrInfoSerialized info = new AddrInfoSerialized(header, addr, null, hostEntry.HostName); AddrInfoSerialized info = new(header, addr, null, hostEntry.HostName);
data = info.Write(data); data = info.Write(data);
} }

1
Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/Types/AddrInfo4.cs
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@ -14,6 +14,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres.Types
public byte Family; public byte Family;
public short Port; public short Port;
public Array4<byte> Address; public Array4<byte> Address;
public Array8<byte> Padding;
public AddrInfo4(IPAddress address, short port) public AddrInfo4(IPAddress address, short port)
{ {

9
Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/Types/AddrInfoSerialized.cs
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@ -35,7 +35,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres.Types
AddrInfo4? socketAddress = null; AddrInfo4? socketAddress = null;
Array4<byte>? rawIPv4Address = null; Array4<byte>? rawIPv4Address = null;
string canonicalName = null; string canonicalName;
buffer = buffer[Unsafe.SizeOf<AddrInfoSerializedHeader>()..]; buffer = buffer[Unsafe.SizeOf<AddrInfoSerializedHeader>()..];
@ -50,6 +50,13 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres.Types
Debug.Assert(header.Magic == SfdnsresContants.AddrInfoMagic); Debug.Assert(header.Magic == SfdnsresContants.AddrInfoMagic);
if (header.AddressLength == 0)
{
rest = buffer;
return null;
}
if (header.Family == (int)AddressFamily.InterNetwork) if (header.Family == (int)AddressFamily.InterNetwork)
{ {
socketAddress = MemoryMarshal.Read<AddrInfo4>(buffer); socketAddress = MemoryMarshal.Read<AddrInfo4>(buffer);