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LibCore: Fix WSAEMSGSIZE error in pending_bytes with proper zero-init

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In SocketWindows, the return value for the ioctl call was not
initialized to zero. This was causing test_udp in TesDNSResolver
to fail as UDPSocket::read_some() was incorrectly failing with
WSAEMSGSIZE due the result of pending_bytes being some
unspecified default value for an uninitialized unsigned long
This commit is contained in:
ayeteadoe 2025-08-21 16:41:20 -07:00 • committed by Andrew Kaster
commit ff71efebb6
Notes: github-actions[bot] 2025-08-24 00:37:27 +00:00
1 changed files with 1 additions and 1 deletions
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Libraries/LibCore/SocketWindows.cpp
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@ -116,7 +116,7 @@ ErrorOr<size_t> PosixSocketHelper::pending_bytes() const
return Error::from_windows_error(WSAENOTCONN); return Error::from_windows_error(WSAENOTCONN);
} }
u_long value; u_long value = 0;
TRY(System::ioctl(m_fd, FIONREAD, &value)); TRY(System::ioctl(m_fd, FIONREAD, &value));
return value; return value;
} }