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FBX Version/Size Check

pull/3350/head
Malcolm Tyrrell 2020-07-30 14:56:01 +01:00
parent 575ce6136d
commit eaf0587dd8
1 changed files with 14 additions and 3 deletions
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17
code/AssetLib/FBX/FBXBinaryTokenizer.cpp
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@ -54,6 +54,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/Exceptional.h>
#include <assimp/ByteSwapper.h>
#include <assimp/DefaultLogger.hpp>
#include <assimp/StringUtils.h>
namespace Assimp {
namespace FBX {
@ -456,11 +457,21 @@ void TokenizeBinary(TokenList& output_tokens, const char* input, size_t length)
ASSIMP_LOG_DEBUG_F("FBX version: ", version);
const bool is64bits = version >= 7500;
const char *end = input + length;
while (cursor < end ) {
if (!ReadScope(output_tokens, input, cursor, input + length, is64bits)) {
break;
try
{
while (cursor < end ) {
if (!ReadScope(output_tokens, input, cursor, input + length, is64bits)) {
break;
}
}
}
catch (const DeadlyImportError& e)
{
if ((sizeof(size_t) > 4) && !is64bits && (length > std::numeric_limits<std::uint32_t>::max())) {
throw DeadlyImportError("The FBX is invalid. This may be because the content is too big for this older version (" + to_string(version) + ") of the FBX format. (" + e.what() + ")");
}
throw;
}
}
} // !FBX