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fix null pointer dereferences found by coverity

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This commit is contained in:
Max Bruckner
2017-02-07 19:07:18 +01:00
parent 2f712c7456
commit 9ed906758e
2 changed files with 22 additions and 7 deletions
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11
cJSON_Utils.c
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@ -494,6 +494,12 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
int cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches)
{
int err = 0;
if (patches == NULL)
{
return 1;
}
if ((patches->type & 0xFF) != cJSON_Array)
{
/* malformed patches. */
@ -544,6 +550,11 @@ void cJSONUtils_AddPatchToArray(cJSON *array, const char *op, const char *path,
static void cJSONUtils_CompareToPatch(cJSON *patches, const unsigned char *path, cJSON *from, cJSON *to)
{
if ((from == NULL) || (to == NULL))
{
return;
}
if ((from->type & 0xFF) != (to->type & 0xFF))
{
cJSONUtils_GeneratePatch(patches, (const unsigned char*)"replace", path, 0, to);