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allocate_module.c
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1 /*
2  * Copyright 2008 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #ifdef HAVE_CONFIG_H
17 #include "config.h"
18 #endif
19 #ifdef HAVE_MALLOC_H
20 #include <malloc.h>
21 #endif
22 #include <sys/types.h>
23 #include <stdlib.h>
24 
25 #ifdef UNIT_TESTING
26 extern void* _test_malloc(const size_t size, const char* file, const int line);
27 extern void* _test_calloc(const size_t number_of_elements, const size_t size,
28  const char* file, const int line);
29 extern void _test_free(void* const ptr, const char* file, const int line);
30 
31 #define malloc(size) _test_malloc(size, __FILE__, __LINE__)
32 #define calloc(num, size) _test_calloc(num, size, __FILE__, __LINE__)
33 #define free(ptr) _test_free(ptr, __FILE__, __LINE__)
34 #endif // UNIT_TESTING
35 
36 void leak_memory(void);
37 void buffer_overflow(void);
38 void buffer_underflow(void);
39 
40 void leak_memory(void) {
41  int * const temporary = (int*)malloc(sizeof(int));
42  *temporary = 0;
43 }
44 
45 void buffer_overflow(void) {
46  char * const memory = (char*)malloc(sizeof(int));
47  memory[sizeof(int)] = '!';
48  free(memory);
49 }
50 
51 void buffer_underflow(void) {
52  char * const memory = (char*)malloc(sizeof(int));
53  memory[-1] = '!';
54  free(memory);
55 }
void _test_free(void *const ptr, const char *file, const int line)
Definition: cmocka.c:1810
#define malloc
Definition: cmocka.c:1795
void * _test_malloc(const size_t size, const char *file, const int line)
Definition: cmocka.c:1767
void leak_memory(void)
void buffer_underflow(void)
void buffer_overflow(void)
void * _test_calloc(const size_t number_of_elements, const size_t size, const char *file, const int line)
Definition: cmocka.c:1798
#define free
Definition: cmocka.c:1850