llvm-project/clang/docs/analyzer/checkers/seckeychainapi_example.m

65 lines
1.5 KiB
Objective-C

void test() {
unsigned int *ptr = 0;
UInt32 length;
SecKeychainItemFreeContent(ptr, &length);
// warn: trying to free data which has not been allocated
}
void test() {
unsigned int *ptr = 0;
UInt32 *length = 0;
void *outData;
OSStatus st =
SecKeychainItemCopyContent(2, ptr, ptr, length, outData);
// warn: data is not released
}
void test() {
unsigned int *ptr = 0;
UInt32 *length = 0;
void *outData;
OSStatus st =
SecKeychainItemCopyContent(2, ptr, ptr, length, &outData);
SecKeychainItemFreeContent(ptr, outData);
// warn: only call free if a non-NULL buffer was returned
}
void test() {
unsigned int *ptr = 0;
UInt32 *length = 0;
void *outData;
OSStatus st =
SecKeychainItemCopyContent(2, ptr, ptr, length, &outData);
st = SecKeychainItemCopyContent(2, ptr, ptr, length, &outData);
// warn: release data before another call to the allocator
if (st == noErr)
SecKeychainItemFreeContent(ptr, outData);
}
void test() {
SecKeychainItemRef itemRef = 0;
SecKeychainAttributeInfo *info = 0;
SecItemClass *itemClass = 0;
SecKeychainAttributeList *attrList = 0;
UInt32 *length = 0;
void *outData = 0;
OSStatus st =
SecKeychainItemCopyAttributesAndData(itemRef, info,
itemClass, &attrList,
length, &outData);
SecKeychainItemFreeContent(attrList, outData);
// warn: deallocator doesn't match the allocator
}