AuroraSupport/AuroraRuntime
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[*] Increase IPCHandle checksum bitlength

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This commit is contained in:
Reece Wilson 2022-07-21 07:30:25 +01:00
parent e24c35d2d0
commit ec4b47c15d
1 changed files with 30 additions and 24 deletions
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10
Source/IO/IPC/IPCHandle.cpp
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@ -105,12 +105,17 @@ namespace Aurora::IO::IPC
} }
AuUInt32 magic {0x811c9dc5}; AuUInt32 magic {0x811c9dc5};
for (int i = 0; i < in.size() - 1; i++) for (int i = 0; i < in.size() - 2; i++)
{ {
magic ^= (in[i] * 0x01000193); magic ^= (in[i] * 0x01000193);
} }
if (AuUInt8(AuUInt8(in[in.size() - 1] - 'A') & 15) != AuUInt8(magic & 15)) if (AuUInt8(AuUInt8(in[in.size() - 2] - 'A') & 15) != AuUInt8(magic & 15))
{
return false;
}
if (AuUInt8(AuUInt8(in[in.size() - 1] - 'A') & 15) != AuUInt8((magic >> 4) & 15))
{ {
return false; return false;
} }
@ -292,6 +297,7 @@ namespace Aurora::IO::IPC
} }
ret.push_back(((magic & 15) + 'A')); ret.push_back(((magic & 15) + 'A'));
ret.push_back((((magic >> 4) & 15) + 'A'));
return ret; return ret;
} }