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🐛 fix for #962

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Added out_of_range exception for UBJSON containers with sizes that exceed the target container's max_size.
This commit is contained in:
Niels Lohmann 2018-02-06 22:38:53 +01:00
parent 8b457ace25
commit 33a9b00ce6
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GPG key ID: 7F3CEA63AE251B69
5 changed files with 53 additions and 6 deletions
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1
include/nlohmann/detail/exceptions.hpp
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@ -263,6 +263,7 @@ json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference
json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value.
json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF.
json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON only supports integers numbers up to 9223372036854775807. |
json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. |
@liveexample{The following code shows how an `out_of_range` exception can be
caught.,out_of_range}

20
include/nlohmann/detail/input/binary_reader.hpp
View file

@ -1246,14 +1246,22 @@ class binary_reader
if (size_and_type.first != string_t::npos)
{
if (JSON_UNLIKELY(size_and_type.first > result.max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive array size: " + std::to_string(size_and_type.first)));
}
if (size_and_type.second != 0)
{
if (size_and_type.second != 'N')
{
std::generate_n(std::back_inserter(*result.m_value.array),
size_and_type.first, [this, size_and_type]()
{
return get_ubjson_value(size_and_type.second);
});
{
return get_ubjson_value(size_and_type.second);
});
}
}
else
{
@ -1283,6 +1291,12 @@ class binary_reader
if (size_and_type.first != string_t::npos)
{
if (JSON_UNLIKELY(size_and_type.first > result.max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive object size: " + std::to_string(size_and_type.first)));
}
if (size_and_type.second != 0)
{
std::generate_n(std::inserter(*result.m_value.object,