forked from rurban/safeclib
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathtest_strncat_s.c
368 lines (295 loc) · 8.93 KB
/
test_strncat_s.c
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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
/*------------------------------------------------------------------
* test_strncat_s
* File 'str/strncat_s.c'
* Lines executed:93.33% of 90
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_str_lib.h"
#ifdef HAVE_STRNCAT_S
#define HAVE_NATIVE 1
#else
#define HAVE_NATIVE 0
#endif
#include "test_msvcrt.h"
#if defined(TEST_MSVCRT) && defined(HAVE_STRNCAT_S)
#undef HAVE_CT_BOS_OVR
#undef strncat_s
EXTERN errno_t strncat_s(char *restrict dest, rsize_t dmax,
const char *restrict src, rsize_t slen);
#endif
#define LEN (128)
static char str1[LEN];
static char str2[LEN];
int test_strncat_s(void);
int test_strncat_s(void) {
errno_t rc;
int len;
int errs = 0;
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaa");
#if defined(TEST_MSVCRT) && defined(HAVE_STRNCAT_S)
use_msvcrt = true;
#endif
print_msvcrt(use_msvcrt);
#ifndef HAVE_CT_BOS_OVR
EXPECT_BOS("empty dest or dmax")
rc = strncat_s(NULL, LEN, str1, LEN);
init_msvcrt(rc == ESNULLP, &use_msvcrt);
ERR_MSVC(ESNULLP, EINVAL);
/*--------------------------------------------------*/
strcpy(str1, "a");
strcpy(str2, "bcde");
EXPECT_BOS("empty dest or dmax")
rc = strncat_s(NULL, 1, str2, 0);
ERR_MSVC(ESNULLP, EINVAL);
EXPECT_BOS("empty dest or dmax")
rc = strncat_s(str1, 0, str2, 0);
ERR_MSVC(ESZEROL, EINVAL);
EXPSTR(str1, "a");
#endif
rc = strncat_s(NULL, 0, str2, 0);
#ifdef HAVE_CT_BOS_OVR
init_msvcrt(rc == EOK, &use_msvcrt);
#endif
ERR_MSVC(EOK, EINVAL);
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 1, str2, 0);
GCC_POP_WARN_DMAX
ERR_MSVC(ESZEROL, EINVAL);
EXPSTR(str1, "");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 2, str2, 0);
GCC_POP_WARN_DMAX
ERR(EOK);
EXPSTR(str1, "");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 3, str2, 0);
GCC_POP_WARN_DMAX
ERR(EOK);
EXPSTR(str1, "");
/*--------------------------------------------------*/
#ifndef HAVE_CT_BOS_OVR
strcpy(str1, "a");
EXPECT_BOS("empty dest or dmax")
rc = strncat_s(str1, 0, str2, LEN);
ERR_MSVC(ESZEROL, EINVAL);
/*--------------------------------------------------*/
strcpy(str1, "ab");
if (!use_msvcrt) {
/* with clang-5 compile-time already checks these errors */
if (_BOS_KNOWN(str1)) {
EXPECT_BOS("dest overflow")
rc = strncat_s(str1, LEN + 1, str2, LEN);
ERR(EOVERFLOW);
EXPSTR(str1, ""); /* cleared */
CHECK_SLACK(str1, 2);
} else {
#ifdef HAVE___BUILTIN_OBJECT_SIZE
debug_printf("%s %u Warning unknown str1 size\n", __FUNCTION__,
__LINE__);
#endif
}
}
strcpy(str1, "a");
/* valid with the windows sec_api */
EXPECT_BOS("dest overflow")
rc = strncat_s(str1, (RSIZE_MAX_STR + 1), str2, LEN);
ERR_MSVC(ESLEMAX, 0);
if (!_BOS_KNOWN(str1)) {
EXPSTR(str1, "a")
} else if (!use_msvcrt) { /* cleared, because BOS is known */
EXPSTR(str1, "")
} else {
EXPSTR(str1, "abcde") /* valid */
}
strcpy(str1, "a");
EXPECT_BOS("src overflow or empty")
rc = strncat_s(str1, LEN, str2, (RSIZE_MAX_STR + 1));
ERR_MSVC(ESLEMAX, 0);
if (!use_msvcrt) {
EXPSTR(str1, ""); /* cleared */
} else {
EXPSTR(str1, "abcde") /* valid */
}
strcpy(str1, "abc");
if (!use_msvcrt) {
if (_BOS_KNOWN(str1)) {
EXPECT_BOS("dest overflow")
rc = strncat_s(str1, LEN + 1, str2, LEN);
ERR(EOVERFLOW); /* dmax exceeds dest */
EXPSTR(str1, ""); /* cleared */
CHECK_SLACK(str1, 4);
rc = strncat_s(str1, LEN - 1, str2, LEN);
ERR(0);
} else {
#ifdef HAVE___BUILTIN_OBJECT_SIZE
debug_printf("%s %u Error unknown str1 object_size\n",
__FUNCTION__, __LINE__);
errs++;
#endif
}
}
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
EXPECT_BOS("slen exceeds src")
rc = strncat_s(str1, 32, "ROString", 31);
ERR_MSVC(EOVERFLOW, EINVAL);
if (!use_msvcrt) {
CHECK_SLACK(str1, 32);
} else {
EXPSTR(str1, "");
}
/*--------------------------------------------------*/
strcpy(str1, "a");
EXPECT_BOS("src overflow or empty")
rc = strncat_s(str1, LEN, NULL, LEN);
ERR_MSVC(ESNULLP, EINVAL);
/*EXPSTR(str1, ""); */
if (!use_msvcrt)
CHECK_SLACK(str1, 1);
#endif
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaa");
strcpy(str2, "keep it simple");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 1, str2, LEN);
GCC_POP_WARN_DMAX
ERR_MSVC(ESUNTERM, EINVAL);
if (!use_msvcrt)
CHECK_SLACK(str1, 1);
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaa");
strcpy(str2, "keep it simple");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 2, str2, LEN);
GCC_POP_WARN_DMAX
ERR_MSVC(ESUNTERM, EINVAL);
if (!use_msvcrt)
CHECK_SLACK(str1, 2);
/*--------------------------------------------------*/
strcpy(str1, "a");
strcpy(str2, "b");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 2, str2, 1);
GCC_POP_WARN_DMAX
ERR_MSVC(ESNOSPC, ERANGE);
if (!use_msvcrt)
CHECK_SLACK(str1, 2);
/*--------------------------------------------------*/
strcpy(str1, "abcd");
GCC_PUSH_WARN_DMAX
rc = strncat_s(&str1[0], 8, &str1[3], 4);
GCC_POP_WARN_DMAX
ERR_MSVC(ESOVRLP, ERANGE);
EXPNULL(str1)
if (!use_msvcrt)
CHECK_SLACK(str1, 8);
strcpy(str1, "abcd");
GCC_PUSH_WARN_DMAX
rc = strncat_s(&str1[0], 4, &str1[3], 4);
GCC_POP_WARN_DMAX
ERR_MSVC(ESOVRLP, EINVAL);
EXPNULL(str1)
if (!use_msvcrt)
CHECK_SLACK(str1, 4);
/*--------------------------------------------------*/
strcpy(str1, "abcd");
GCC_PUSH_WARN_DMAX
rc = strncat_s(&str1[0], 3, &str1[3], 4);
GCC_POP_WARN_DMAX
ERR_MSVC(ESUNTERM, EINVAL);
EXPNULL(str1)
if (!use_msvcrt)
CHECK_SLACK(str1, 3);
/*--------------------------------------------------*/
strcpy(str1, "abcdefgh");
GCC_PUSH_WARN_DMAX
rc = strncat_s(&str1[3], 5, &str1[0], 4);
GCC_POP_WARN_DMAX
ERR_MSVC(ESUNTERM, EINVAL);
EXPNULL(&str1[3])
if (!use_msvcrt)
CHECK_SLACK(&str1[3], 5);
/*--------------------------------------------------*/
strcpy(str1, "abcdefgh");
GCC_PUSH_WARN_DMAX
rc = strncat_s(&str1[3], 12, &str1[0], 4);
GCC_POP_WARN_DMAX
ERR_MSVC(ESOVRLP, EOK);
if (!use_msvcrt) {
EXPNULL(&str1[3]);
CHECK_SLACK(&str1[3], 12);
} else {
EXPSTR(str1, "abcdefghabcd"); /* Windows appends! */
}
/*--------------------------------------------------*/
strcpy(str1, "a");
strcpy(str2, "b");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 3, str2, 1);
GCC_POP_WARN_DMAX
ERR(EOK)
EXPSTR(str1, "ab");
if (!use_msvcrt)
CHECK_SLACK(&str1[2], 3 - 2);
/*--------------------------------------------------*/
strcpy(str1, "aaaaaaaaaa");
strcpy(str2, "keep it simple");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 50, str2, LEN);
GCC_POP_WARN_DMAX
ERR(EOK)
EXPSTR(str1, "aaaaaaaaaakeep it simple");
len = strlen(str1);
if (!use_msvcrt)
CHECK_SLACK(&str1[len], 50 - len);
/*--------------------------------------------------*/
/* TR example */
strcpy(str1, "good");
strcpy(str2, "bye");
rc = strncat_s(str1, LEN, str2, LEN);
ERR(EOK)
EXPSTR(str1, "goodbye");
len = strlen(str1);
if (!use_msvcrt)
CHECK_SLACK(&str1[len], LEN - len);
/*--------------------------------------------------*/
/* TR example */
strcpy(str1, "hello");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 6, "", 1);
GCC_POP_WARN_DMAX
ERR(EOK)
EXPSTR(str1, "hello");
len = strlen(str1);
if (!use_msvcrt)
CHECK_SLACK(&str1[len], 6 - len);
/*--------------------------------------------------*/
/* TR example */
strcpy(str1, "hello");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 6, "X", 2);
GCC_POP_WARN_DMAX
ERR_MSVC(ESNOSPC, ERANGE);
CHECK_SLACK(str1, 6);
/*--------------------------------------------------*/
/* TR example */
strcpy(str1, "abc");
GCC_PUSH_WARN_DMAX
rc = strncat_s(str1, 7, "defghijklmn", 3);
GCC_POP_WARN_DMAX
ERR(EOK)
EXPSTR(str1, "abcdef");
len = strlen(str1);
if (!use_msvcrt)
CHECK_SLACK(&str1[len], 6 - len);
/*--------------------------------------------------*/
return (errs);
}
#ifndef __KERNEL__
/* simple hack to get this to work for both userspace and Linux kernel,
until a better solution can be created. */
int main(void) { return (test_strncat_s()); }
#endif