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Fixed integer overflow issue

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This commit is contained in:
Ronak Patel 2019-09-04 15:14:18 +05:30 committed by gladcow
parent 6943a0bfbd
commit 99699d8a4d
2 changed files with 24 additions and 1 deletions
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10
libraries/chain/include/graphene/chain/asset_object.hpp
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@ -230,8 +230,16 @@ namespace graphene { namespace chain {
share_type settlement_fund; share_type settlement_fund;
///@} ///@}
/// The time when @ref current_feed would expire
time_point_sec feed_expiration_time()const time_point_sec feed_expiration_time()const
{ return current_feed_publication_time + options.feed_lifetime_sec; } {
uint32_t current_feed_seconds = current_feed_publication_time.sec_since_epoch();
if( std::numeric_limits<uint32_t>::max() - current_feed_seconds <= options.feed_lifetime_sec )
return time_point_sec::maximum();
else
return current_feed_publication_time + options.feed_lifetime_sec;
}
bool feed_is_expired_before_hardfork_615(time_point_sec current_time)const bool feed_is_expired_before_hardfork_615(time_point_sec current_time)const
{ return feed_expiration_time() >= current_time; } { return feed_expiration_time() >= current_time; }
bool feed_is_expired(time_point_sec current_time)const bool feed_is_expired(time_point_sec current_time)const

15
tests/tests/basic_tests.cpp
View file

@ -540,4 +540,19 @@ BOOST_AUTO_TEST_CASE( merkle_root )
BOOST_CHECK( block.calculate_merkle_root() == c(dO) ); BOOST_CHECK( block.calculate_merkle_root() == c(dO) );
} }
/**
* Reproduces https://github.com/bitshares/bitshares-core/issues/888 and tests fix for it.
*/
BOOST_AUTO_TEST_CASE( bitasset_feed_expiration_test )
{
time_point_sec now = fc::time_point::now();
asset_bitasset_data_object o;
o.current_feed_publication_time = now - fc::hours(1);
o.options.feed_lifetime_sec = std::numeric_limits<uint32_t>::max() - 1;
BOOST_CHECK( !o.feed_is_expired( now ) );
}
BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END()