blobmsg_json.c

   1 #include "blobmsg.h"
   2 #include "blobmsg_json.h"
   3
   4 static bool blobmsg_add_object(struct blob_buf *b, json_object *obj)
   5 {
   6         json_object_object_foreach(obj, key, val) {
   7                 if (!blobmsg_add_json_element(b, key, val))
   8                         return false;
   9         }
  10         return true;
  11 }
  12
  13 static bool blobmsg_add_array(struct blob_buf *b, struct array_list *a)
  14 {
  15         int i, len;
  16
  17         for (i = 0, len = array_list_length(a); i < len; i++) {
  18                 if (!blobmsg_add_json_element(b, NULL, array_list_get_idx(a, i)))
  19                         return false;
  20         }
  21
  22         return true;
  23 }
  24
  25 bool blobmsg_add_json_element(struct blob_buf *b, const char *name, json_object *obj)
  26 {
  27         bool ret = true;
  28         void *c;
  29
  30         if (!obj)
  31                 return false;
  32
  33         switch (json_object_get_type(obj)) {
  34         case json_type_object:
  35                 c = blobmsg_open_table(b, name);
  36                 ret = blobmsg_add_object(b, obj);
  37                 blobmsg_close_table(b, c);
  38                 break;
  39         case json_type_array:
  40                 c = blobmsg_open_array(b, name);
  41                 ret = blobmsg_add_array(b, json_object_get_array(obj));
  42                 blobmsg_close_array(b, c);
  43                 break;
  44         case json_type_string:
  45                 blobmsg_add_string(b, name, json_object_get_string(obj));
  46                 break;
  47         case json_type_boolean:
  48                 blobmsg_add_u8(b, name, json_object_get_boolean(obj));
  49                 break;
  50         case json_type_int:
  51                 blobmsg_add_u32(b, name, json_object_get_int(obj));
  52                 break;
  53         default:
  54                 return false;
  55         }
  56         return ret;
  57 }
  58
  59 bool blobmsg_add_json_from_string(struct blob_buf *b, const char *str)
  60 {
  61         json_object *obj;
  62         bool ret = false;
  63
  64         obj = json_tokener_parse(str);
  65         if (is_error(obj))
  66                 return false;
  67
  68         if (json_object_get_type(obj) != json_type_object)
  69                 goto out;
  70
  71         ret = blobmsg_add_object(b, obj);
  72
  73 out:
  74         json_object_put(obj);
  75         return ret;
  76 }
  77