!118 merge master into master

合入社区修改：fix: prevent NULL pointer dereference in cJSON_SetNumberHelper (#991)

Created-by: mohaoyuan
Commit-by: mohaoyuan
Merged-by: openharmony_ci
Description: ### 相关的Issue
https://gitcode.com/openharmony/third_party_cJSON/issues/91
### 原因（目的、解决的问题等）
合入社区修改：fix: prevent NULL pointer dereference in cJSON_SetNumberHelper (#991)

### 描述（做了什么，变更了什么）
合入社区修改：fix: prevent NULL pointer dereference in cJSON_SetNumberHelper (#991)

### 测试用例（新增、改动、可能影响的功能）
    
    


See merge request: openharmony/third_party_cJSON!118

cJSON.c

@@ -414,6 +414,11 @@ loop_end:
 /* don't ask me, but the original cJSON_SetNumberValue returns an integer or double */
 CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number)
 {
+    if (object == NULL)
+    {
+        return (double)NAN;
+    }
+
     if (number >= INT_MAX)
     {
         object->valueint = INT_MAX;

tests/misc_tests.c

@@ -27,6 +27,7 @@
 #include "unity/examples/unity_config.h"
 #include "unity/src/unity.h"
 #include "common.h"
+#include <math.h>
 
 static void cjson_array_foreach_should_loop_over_arrays(void)
 {
@@ -478,8 +479,8 @@ static void cjson_functions_should_not_crash_with_null_pointers(void)
     TEST_ASSERT_NULL(cJSON_SetValuestring(corruptedString, "test"));
     TEST_ASSERT_NULL(cJSON_SetValuestring(item, NULL));
     cJSON_Minify(NULL);
-    /* skipped because it is only used via a macro that checks for NULL */
-    /* cJSON_SetNumberHelper(NULL, 0); */
+    /* cJSON_SetNumberHelper should handle NULL gracefully */
+    TEST_ASSERT_TRUE(isnan(cJSON_SetNumberHelper(NULL, 0)));
 
     /* restore corrupted item2 to delete it */
     item2->prev = originalPrev;