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handle null pointers: create_reference

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Also fixes a potential memory leak
This commit is contained in:
Max Bruckner 2017-06-27 23:00:19 +02:00
parent e9d1de24cf
commit 90ff72c8bb
1 changed files with 14 additions and 7 deletions
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21
cJSON.c
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@ -1756,16 +1756,23 @@ static void suffix_object(cJSON *prev, cJSON *item)
/* Utility for handling references. */ /* Utility for handling references. */
static cJSON *create_reference(const cJSON *item, const internal_hooks * const hooks) static cJSON *create_reference(const cJSON *item, const internal_hooks * const hooks)
{ {
cJSON *ref = cJSON_New_Item(hooks); cJSON *reference = NULL;
if (!ref) if (item == NULL)
{ {
return NULL; return NULL;
} }
memcpy(ref, item, sizeof(cJSON));
ref->string = NULL; reference = cJSON_New_Item(hooks);
ref->type |= cJSON_IsReference; if (reference == NULL)
ref->next = ref->prev = NULL; {
return ref; return NULL;
}
memcpy(reference, item, sizeof(cJSON));
reference->string = NULL;
reference->type |= cJSON_IsReference;
reference->next = reference->prev = NULL;
return reference;
} }
/* Add item to array/object. */ /* Add item to array/object. */