include/fc/io/json.hpp

@@ -21,8 +21,9 @@ namespace fc
 #ifdef WITH_EXOTIC_JSON_PARSERS
             strict_parser         = 1,
             relaxed_parser        = 2,
-            legacy_parser_with_string_doubles = 3
+            legacy_parser_with_string_doubles = 3,
 #endif
+            broken_nul_parser     = 4
          };
          enum output_formatting
          {

src/io/json.cpp

@@ -441,6 +441,9 @@ namespace fc
          case EOF:
             FC_THROW_EXCEPTION( eof_exception, "unexpected end of file" );
          case 0:
+            if( parser_type == fc::json::broken_nul_parser )
+               return variant();
+            [[fallthrough]];
          default:
             FC_THROW_EXCEPTION( parse_error_exception, "Unexpected char '${c}' in \"${s}\"",
                                 ("c", c)("s", stringFromToken(in)) );