1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#include <dirent.h>
#include <stdio.h>
#include <stdarg.h>
#include <setjmp.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <cmocka.h>
/**
* @brief Simulates opening file
* @details Checks if path is equal expected value and returns given pointer
* from cmocka queue
*/
FILE *fopen(const char *path, const char *mode)
{
check_expected(path);
return mock_ptr_type(FILE *);
}
/**
* @brief Simulates closing file
* @details Does absolutely nothing, always acts as successfull close
*/
int fclose(FILE *fp)
{
check_expected(fp);
return mock_type(int);
}
/**
* @brief Simulates reading file
* @details Does not read any file, instead returns value from cmocka queue
* @return value specified by caller previously
*/
char *fgets(char *s, int size, FILE *stream)
{
check_expected(stream);
strncpy(s, mock_ptr_type(char *), size);
return s;
}
/**
* @brief Simulates opening directory
* @details Does not open any dir, instead returns user-specified value
* @return value specified by caller previously
*/
DIR *opendir(const char *name)
{
check_expected(name);
return mock_ptr_type(DIR *);
}
/**
* @brief Simulates closing directory
* @details Does nothing and ends successfully.
*/
int closedir(DIR *dirp)
{
check_expected(dirp);
return mock_type(int);
}
/**
* @brief Simulates scanning directory
* @details Checks if dirp has expected value. Then consecutive values from
* cmocka queue are proceed. First value must be integer and indicates number
* of directory entries which should be returned. Next number of values indicate
* names of directory entries.
*/
int scandir(const char *dirp, struct dirent ***namelist,
int (*filter)(const struct dirent *),
int (*compar)(const struct dirent **, const struct dirent **))
{
int count;
int i, j = 0;
char *name;
struct dirent **entries;
struct dirent *entry;
int tmp, expected;
check_expected(dirp);
count = mock_type(int);
if (count > 0)
entries = calloc(count, sizeof(*entries));
else
entries = NULL;
for (i = 0; i < count; i++) {
name = mock_ptr_type(char *);
entry = malloc(sizeof(*entry));
if (strlen(name) >= NAME_MAX)
fail();
strcpy(entry->d_name, name);
entry->d_type = mock_type(unsigned char);
expected = mock_type(int);
if (filter) {
tmp = filter(entry);
assert_int_equal(tmp, expected);
if (tmp)
entries[j++] = entry;
else
free(entry);
}
}
if (compar)
qsort(entries, count, sizeof(*entries),
(int (*)(const void *,const void *))compar);
*namelist = entries;
return j;
}
/**
* @brief Simultes readlink, with user-specified behavior
* @datails Check if path and bufsiz equal expedted values and
* write to buf string given by cmocka
*/
ssize_t readlink(const char *path, char *buf, size_t bufsiz)
{
char *res;
int reslen;
check_expected(path);
check_expected(bufsiz);
res = mock_ptr_type(char *);
reslen = strlen(res);
if (bufsiz <= reslen)
fail();
strcpy(buf, res);
return reslen;
}
/**
* @brief Simulates puts, with user-specified behavior
* @details Check if user is trying to write expected data
* @return value received from cmocka queue
*/
int fputs(const char *s, FILE *stream)
{
/* Cmocka (or anything else) may want to print some errors.
* Especially when running fputs itself */
if (stream == stderr) {
printf("%s", s);
return 0;
}
check_expected(stream);
check_expected(s);
return mock_type(int);
}
/**
* @brief Does nothing.
*/
int fflush(FILE *stream)
{
return 0;
}
int ferror(FILE *stream)
{
return 0;
}
|
