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MDEV-9993 - connect.json_udf_bin valgrind warnings

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"result" may be uninitialized when json_set_item() is called directly.
This commit is contained in:
Sergey Vojtovich 2016-04-26 13:42:10 +04:00
parent fa10a65dc2
commit 15313216bf
1 changed files with 12 additions and 15 deletions
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27
storage/connect/jsonudf.cpp
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@ -3568,11 +3568,11 @@ my_bool json_set_item_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
return JsonInit(initid, args, message, true, reslen, memlen);
} // end of json_set_item_init
char *json_set_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *is_null, char *error)
static char *json_set_item_core(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *is_null, char *error, int w)
{
char *p, *path, *str = NULL;
int w, rc;
int rc;
my_bool b = true;
PJSON jsp;
PJSNX jsx;
@ -3586,13 +3586,6 @@ char *json_set_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
} else if (initid->const_item)
g->N = 1;
if (!strcmp(result, "$insert"))
w = 1;
else if (!strcmp(result, "$update"))
w = 2;
else
w = 0;
// Save stack and allocation environment and prepare error return
if (g->jump_level == MAX_JUMP) {
PUSH_WARNING(MSG(TOO_MANY_JUMPS));
@ -3671,7 +3664,13 @@ char *json_set_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
*res_length = strlen(str);
return str;
} // end of json_set_item
} // end of json_set_item_core
char *json_set_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *is_null, char *error)
{
return json_set_item_core(initid, args, result, res_length, is_null, error, 0);
}
void json_set_item_deinit(UDF_INIT* initid)
{
@ -3689,8 +3688,7 @@ my_bool json_insert_item_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
char *json_insert_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *is_null, char *p)
{
strcpy(result, "$insert");
return json_set_item(initid, args, result, res_length, is_null, p);
return json_set_item_core(initid, args, result, res_length, is_null, p, 1);
} // end of json_insert_item
void json_insert_item_deinit(UDF_INIT* initid)
@ -3709,8 +3707,7 @@ my_bool json_update_item_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
char *json_update_item(UDF_INIT *initid, UDF_ARGS *args, char *result,
unsigned long *res_length, char *is_null, char *p)
{
strcpy(result, "$update");
return json_set_item(initid, args, result, res_length, is_null, p);
return json_set_item_core(initid, args, result, res_length, is_null, p, 2);
} // end of json_update_item
void json_update_item_deinit(UDF_INIT* initid)