| /* |
| * Copyright 2008 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| #ifdef HAVE_MALLOC_H |
| #include <malloc.h> |
| #endif |
| #include <sys/types.h> |
| |
| #if UNIT_TESTING |
| extern void* _test_malloc(const size_t size, const char* file, const int line); |
| extern void* _test_calloc(const size_t number_of_elements, const size_t size, |
| const char* file, const int line); |
| extern void _test_free(void* const ptr, const char* file, const int line); |
| |
| #define malloc(size) _test_malloc(size, __FILE__, __LINE__) |
| #define calloc(num, size) _test_calloc(num, size, __FILE__, __LINE__) |
| #define free(ptr) _test_free(ptr, __FILE__, __LINE__) |
| #endif // UNIT_TESTING |
| |
| void leak_memory(void); |
| void buffer_overflow(void); |
| void buffer_underflow(void); |
| |
| void leak_memory(void) { |
| int * const temporary = (int*)malloc(sizeof(int)); |
| *temporary = 0; |
| } |
| |
| void buffer_overflow(void) { |
| char * const memory = (char*)malloc(sizeof(int)); |
| memory[sizeof(int)] = '!'; |
| free(memory); |
| } |
| |
| void buffer_underflow(void) { |
| char * const memory = (char*)malloc(sizeof(int)); |
| memory[-1] = '!'; |
| free(memory); |
| } |