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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/*------------------------------------------------------------------
* test_memcmp_s
* File 'extmem/memcmp_s.c'
* Lines executed:89.09% of 55
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_mem_lib.h"
#define LEN (128)
static uint8_t mem1[LEN];
static uint8_t mem2[LEN];
int test_memcmp_s(void);
int test_memcmp_s(void) {
errno_t rc;
int ind;
int std_ind;
uint32_t len;
int errs = 0;
/*--------------------------------------------------*/
#ifndef HAVE_CT_BOS_OVR
EXPECT_BOS("empty dest")
rc = memcmp_s(NULL, LEN, mem2, LEN, &ind);
ERR(ESNULLP);
EXPECT_BOS("empty src")
rc = memcmp_s(mem1, LEN, NULL, LEN, &ind);
ERR(ESNULLP);
EXPECT_BOS("empty diff")
rc = memcmp_s(mem1, LEN, mem2, LEN, NULL);
ERR(ESNULLP);
/*--------------------------------------------------*/
EXPECT_BOS("empty dest or dmax") EXPECT_BOS("slen overflow >dmax")
rc = memcmp_s(mem1, 0, mem2, LEN, &ind);
ERR(ESZEROL);
EXPECT_BOS("empty slen")
rc = memcmp_s(mem1, LEN, mem2, 0, &ind);
ERR(ESZEROL);
/*--------------------------------------------------*/
EXPECT_BOS("dest overflow")
rc = memcmp_s(mem1, RSIZE_MAX_MEM + 1, mem2, LEN, &ind);
ERR(ESLEMAX);
EXPECT_BOS("src overflow") EXPECT_BOS("slen overflow >dmax")
rc = memcmp_s(mem1, LEN, mem2, RSIZE_MAX_MEM + 1, &ind);
ERR(ESLEMAX);
#ifdef HAVE___BUILTIN_OBJECT_SIZE
EXPECT_BOS("dest overflow")
rc = memcmp_s(mem1, LEN + 1, mem2, LEN, &ind);
ERR(EOVERFLOW);
EXPECT_BOS("src overflow") EXPECT_BOS("slen overflow >dmax")
rc = memcmp_s(mem1, LEN, mem2, LEN + 1, &ind);
ERR(EOVERFLOW);
#endif
/*--------------------------------------------------*/
EXPECT_BOS("slen overflow >dmax")
rc = memcmp_s(mem1, LEN - 1, mem2, LEN, &ind);
ERR(ESNOSPC);
#endif
/*--------------------------------------------------*/
/* undetected at compile-time */
len = RSIZE_MAX_MEM + 1;
rc = memcmp_s(mem1, LEN, mem2, len, &ind);
ERR(ESLEMAX);
/*--------------------------------------------------*/
/* intel's mpx dynamic pointer bounds checker.
* requires -fcheck-pointer-bounds -mmpx
*/
#ifdef HAVE_BND_CHK_MALLOC
{
void *memd = bnd_chk_malloc(LEN - 1);
rc = memcmp_s(memd, LEN, mem2, LEN, &ind);
/* ERR(ESLEMAX); run-time error here */
rc = memcmp_s(mem1, LEN, memd, LEN, &ind);
/* ERR(ESLEMAX); run-time error here */
}
#endif
/*--------------------------------------------------*/
/* short cut */
rc = memcmp_s(mem1, LEN, mem1, LEN, &ind);
ERR(EOK);
INDZERO();
/*--------------------------------------------------*/
len = 1;
memset(mem1, 55, len);
memset(mem2, 55, len);
rc = memcmp_s(mem1, len, mem2, len, &ind);
ERR(EOK);
INDZERO();
std_ind = memcmp(mem1, mem2, len);
if (ind != std_ind) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
len = 2;
memset(mem1, 55, LEN);
memset(mem2, 55, LEN);
rc = memcmp_s(&mem1[1], len, &mem2[1], len, &ind);
ERR(EOK);
INDZERO();
std_ind = memcmp(mem1, mem2, len);
if (ind != std_ind) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
len = 32;
memset(mem1, 55, len);
memset(mem2, 55, len);
rc = memcmp_s(mem1, len, mem2, len, &ind);
ERR(EOK);
INDZERO();
std_ind = memcmp(mem1, mem2, len);
if (ind != std_ind) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
len = 32;
memset(mem1, 55, len);
memset(mem2, 55, len);
memset(&mem2[(len / 2)], 35, len);
rc = memcmp_s(mem1, len, mem2, len, &ind);
ERR(EOK);
if (ind < 1) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
len = 32;
memset(mem1, 55, len);
memset(mem2, 55, len);
memset(&mem2[(len / 2)], 65, len);
rc = memcmp_s(mem1, len, mem2, len, &ind);
ERR(EOK);
if (ind > -1) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
len = 3;
memset(mem1, 55, len);
memset(mem2, 55, len);
rc = memcmp_s(mem1, len, mem2, len, &ind);
ERR(EOK);
if (ind != 0) {
debug_printf("%s %u Ind=%d rc=%u \n", __FUNCTION__, __LINE__, ind,
rc);
errs++;
}
/*--------------------------------------------------*/
return (errs);
}
#ifndef __KERNEL__
int main(void) { return (test_memcmp_s()); }
#endif
|
