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add the loop key length macro for circular reference detect

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This commit is contained in:
allen 2019-09-16 15:50:59 +08:00
parent 63fb81faa5
commit 53e9dd848f
3 changed files with 6 additions and 5 deletions
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3
src/dump.c
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@ -296,8 +296,7 @@ static int do_dump(const json_t *json, size_t flags, int depth,
void *iter;
const char *separator;
int separator_length;
/* Space for "0x", double the sizeof a pointer for the hex and a terminator. */
char loop_key[2 + (sizeof(json) * 2) + 1];
char loop_key[LOOP_KEY_LEN];
if(flags & JSON_COMPACT) {
separator = ":";

2
src/jansson_private.h
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@ -91,6 +91,8 @@ char *jsonp_strdup(const char *str) JANSSON_ATTRS(warn_unused_result);
char *jsonp_strndup(const char *str, size_t len) JANSSON_ATTRS(warn_unused_result);
/* Circular reference check*/
/* Space for "0x", double the sizeof a pointer for the hex and a terminator. */
#define LOOP_KEY_LEN (2 + (sizeof(json_t *) * 2) + 1)
int jsonp_loop_check(hashtable_t *parents, const json_t *json, char *key, size_t key_size);

6
src/value.c
View file

@ -322,10 +322,10 @@ static json_t *json_object_deep_copy(const json_t *object, hashtable_t *parents)
{
json_t *result;
void *iter;
char loop_key[2 + (sizeof(object) * 2) + 1];
char loop_key[LOOP_KEY_LEN];
if (jsonp_loop_check(parents, object, loop_key, sizeof(loop_key)))
return NULL;
return NULL;
result = json_object();
if(!result)
@ -641,7 +641,7 @@ static json_t *json_array_deep_copy(const json_t *array, hashtable_t *parents)
{
json_t *result;
size_t i;
char loop_key[2 + (sizeof(array) * 2) + 1];
char loop_key[LOOP_KEY_LEN];
if (jsonp_loop_check(parents, array, loop_key, sizeof(loop_key)))
return NULL;