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Fix NtUserGetAtomName signature

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This commit is contained in:
Igor Pissolati
2025-04-22 03:45:52 -03:00
parent 657bf6121a
commit b5abcce65d
1 changed files with 16 additions and 8 deletions
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24
src/windows-emulator/syscalls.cpp
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@@ -559,8 +559,8 @@ namespace syscalls
return STATUS_SUCCESS;
}
NTSTATUS handle_NtUserGetAtomName(const syscall_context& c, const RTL_ATOM atom, const uint64_t atom_name,
const ULONG length)
NTSTATUS handle_NtUserGetAtomName(const syscall_context& c, const RTL_ATOM atom,
const emulator_object<UNICODE_STRING<EmulatorTraits<Emu64>>> atom_name)
{
const auto* name = c.proc.get_atom_name(atom);
if (!name)
@@ -568,14 +568,22 @@ namespace syscalls
return STATUS_INVALID_PARAMETER;
}
if (length < name->size())
{
return STATUS_BUFFER_TOO_SMALL;
}
const size_t name_length = name->size() * 2;
const size_t max_length = name_length + 2;
c.emu.write_memory(atom_name, name->data(), name->size());
bool too_small = false;
atom_name.access([&](UNICODE_STRING<EmulatorTraits<Emu64>>& str) {
if (str.MaximumLength < max_length)
{
too_small = true;
return;
}
return STATUS_SUCCESS;
str.Length = static_cast<USHORT>(name_length);
c.emu.write_memory(str.Buffer, name->data(), max_length);
});
return too_small ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
}
NTSTATUS handle_NtQueryDebugFilterState()