Prevent datatimes from overflowing or underflowing 32-bit signed inte…

…gers
only-dev-time · Jul 15, 2019 · a8b3ddb · a8b3ddb
1 parent 65a92d0
commit a8b3ddb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/libraries/fc/src/time.cpp b/libraries/fc/src/time.cpp
@@ -41,6 +41,9 @@ namespace fc {
           pt = boost::date_time::parse_delimited_time<boost::posix_time::ptime>( s, 'T' );
       else
           pt = boost::posix_time::from_iso_string( s );
+
+      FC_ASSERT( (pt - epoch).total_seconds() <= INT32_MAX, "Datetime overflow" );
+      FC_ASSERT( (pt - epoch).total_seconds() >= INT32_MIN, "Datetime underflow" );
       return fc::time_point_sec( (pt - epoch).total_seconds() );
   } FC_RETHROW_EXCEPTIONS( warn, "unable to convert ISO-formatted string to fc::time_point_sec" ) }