webmcp

changeset 182:b460ae08dd78

json.import does support even more nested levels
author jbe
date Sat Aug 02 02:53:32 2014 +0200 (2014-08-02)
parents c2e76617c26c
children f7c1869b5b32
files libraries/json/json.c
line diff
     1.1 --- a/libraries/json/json.c	Sat Aug 02 02:38:18 2014 +0200
     1.2 +++ b/libraries/json/json.c	Sat Aug 02 02:53:32 2014 +0200
     1.3 @@ -5,10 +5,10 @@
     1.4  #include <math.h>
     1.5  
     1.6  // maximum number of nested JSON values (objects and arrays):
     1.7 -// NOTE: json_import can store (2^31-1) / 3 levels on stack swap;
     1.8 -//       one additional level is kept on the Lua stack, resulting
     1.9 -//       in 715827883 possible nested levels.
    1.10 -#define JSON_MAXDEPTH 715827883
    1.11 +// NOTE: json_import can store 2^32 / 3 levels on stack swap (using
    1.12 +//       also negative indicies after integer wraparound), so
    1.13 +//       1024^3 = 1073741824 is a safe value.
    1.14 +#define JSON_MAXDEPTH (1024*1024*1024)
    1.15  // NOTE: As long as the function json_export_internal is implemented
    1.16  //       recursively, JSON_MAXDEPTH needs to be low (e.g. 50) to avoid C stack
    1.17  //       overflows.

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