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bsd: Fix Poll writting in input buffer (#3630)

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This is a very old oversight on our Poll implementation.
This worked so far reliably because games and homebrews pass the same
buffer as input and output.
This commit is contained in:
Mary-nyan 2022-08-26 18:10:45 +02:00 committed by GitHub
parent 923089a298
commit 9bad71afbf
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1 changed files with 6 additions and 5 deletions
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11
Ryujinx.HLE/HOS/Services/Sockets/Bsd/IClient.cs
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@ -219,9 +219,10 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
int fdsCount = context.RequestData.ReadInt32(); int fdsCount = context.RequestData.ReadInt32();
int timeout = context.RequestData.ReadInt32(); int timeout = context.RequestData.ReadInt32();
(ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x21(); (ulong inputBufferPosition, ulong inputBufferSize) = context.Request.GetBufferType0x21();
(ulong outputBufferPosition, ulong outputBufferSize) = context.Request.GetBufferType0x22();
if (timeout < -1 || fdsCount < 0 || (ulong)(fdsCount * 8) > bufferSize) if (timeout < -1 || fdsCount < 0 || (ulong)(fdsCount * 8) > inputBufferSize)
{ {
return WriteBsdResult(context, -1, LinuxError.EINVAL); return WriteBsdResult(context, -1, LinuxError.EINVAL);
} }
@ -230,7 +231,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
for (int i = 0; i < fdsCount; i++) for (int i = 0; i < fdsCount; i++)
{ {
PollEventData pollEventData = context.Memory.Read<PollEventData>(bufferPosition + (ulong)(i * Unsafe.SizeOf<PollEventData>())); PollEventData pollEventData = context.Memory.Read<PollEventData>(inputBufferPosition + (ulong)(i * Unsafe.SizeOf<PollEventData>()));
IFileDescriptor fileDescriptor = _context.RetrieveFileDescriptor(pollEventData.SocketFd); IFileDescriptor fileDescriptor = _context.RetrieveFileDescriptor(pollEventData.SocketFd);
@ -277,7 +278,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
{ {
bool IsUnexpectedLinuxError(LinuxError error) bool IsUnexpectedLinuxError(LinuxError error)
{ {
return errno != LinuxError.SUCCESS && errno != LinuxError.ETIMEDOUT; return error != LinuxError.SUCCESS && error != LinuxError.ETIMEDOUT;
} }
// Hybrid approach // Hybrid approach
@ -332,7 +333,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
// TODO: Spanify // TODO: Spanify
for (int i = 0; i < fdsCount; i++) for (int i = 0; i < fdsCount; i++)
{ {
context.Memory.Write(bufferPosition + (ulong)(i * Unsafe.SizeOf<PollEventData>()), events[i].Data); context.Memory.Write(outputBufferPosition + (ulong)(i * Unsafe.SizeOf<PollEventData>()), events[i].Data);
} }
return WriteBsdResult(context, updateCount, errno); return WriteBsdResult(context, updateCount, errno);