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protect objects against invalid allocation ids

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Ted John
2016-07-03 18:02:18 +01:00
parent 80381cfaa0
commit 52928e1e08
26 changed files with 78 additions and 54 deletions
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8
src/object/StexObject.cpp
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@@ -31,9 +31,7 @@ enum OBJ_STRING_ID
void StexObject::ReadLegacy(IReadObjectContext * context, IStream * stream)
{
_legacyType.scenario_name = stream->ReadValue<rct_string_id>();
_legacyType.park_name = stream->ReadValue<rct_string_id>();
_legacyType.details = stream->ReadValue<rct_string_id>();
stream->Seek(6, STREAM_SEEK_CURRENT);
_legacyType.var_06 = stream->ReadValue<uint8>();
stream->Seek(1, STREAM_SEEK_CURRENT);
@@ -54,6 +52,10 @@ void StexObject::Unload()
language_free_object_string(_legacyType.scenario_name);
language_free_object_string(_legacyType.park_name);
language_free_object_string(_legacyType.details);
_legacyType.scenario_name = 0;
_legacyType.park_name = 0;
_legacyType.details = 0;
}
void StexObject::DrawPreview(rct_drawpixelinfo * dpi) const