1 | /* Test strcat functions. |
2 | Copyright (C) 1999-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define TEST_MAIN |
20 | #ifndef WIDE |
21 | # define TEST_NAME "strcat" |
22 | #else |
23 | # define TEST_NAME "wcscat" |
24 | #endif /* WIDE */ |
25 | #include "test-string.h" |
26 | |
27 | #ifndef WIDE |
28 | # define STRCAT strcat |
29 | # define CHAR char |
30 | # define UCHAR unsigned char |
31 | # define sfmt "s" |
32 | # define SIMPLE_STRCAT simple_strcat |
33 | # define STRLEN strlen |
34 | # define STRCMP strcmp |
35 | # define MEMSET memset |
36 | # define MEMCPY memcpy |
37 | # define MEMCMP memcmp |
38 | # define BIG_CHAR CHAR_MAX |
39 | # define SMALL_CHAR 127 |
40 | #else |
41 | # include <wchar.h> |
42 | # define STRCAT wcscat |
43 | # define CHAR wchar_t |
44 | # define UCHAR wchar_t |
45 | # define sfmt "ls" |
46 | # define SIMPLE_STRCAT simple_wcscat |
47 | # define STRLEN wcslen |
48 | # define STRCMP wcscmp |
49 | # define MEMSET wmemset |
50 | # define MEMCPY wmemcpy |
51 | # define MEMCMP wmemcmp |
52 | # define BIG_CHAR WCHAR_MAX |
53 | # define SMALL_CHAR 1273 |
54 | #endif /* WIDE */ |
55 | |
56 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); |
57 | |
58 | IMPL (STRCAT, 1) |
59 | |
60 | /* Naive implementation to verify results. */ |
61 | CHAR * |
62 | SIMPLE_STRCAT (CHAR *dst, const CHAR *src) |
63 | { |
64 | CHAR *ret = dst; |
65 | while (*dst++ != '\0'); |
66 | --dst; |
67 | while ((*dst++ = *src++) != '\0'); |
68 | return ret; |
69 | } |
70 | |
71 | static void |
72 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src) |
73 | { |
74 | size_t k = STRLEN (dst); |
75 | if (CALL (impl, dst, src) != dst) |
76 | { |
77 | error (status: 0, errnum: 0, format: "Wrong result in function %s %p %p" , impl->name, |
78 | CALL (impl, dst, src), dst); |
79 | ret = 1; |
80 | return; |
81 | } |
82 | |
83 | if (STRCMP (dst + k, src) != 0) |
84 | { |
85 | error (status: 0, errnum: 0, format: "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"" , |
86 | impl->name, dst, src); |
87 | ret = 1; |
88 | return; |
89 | } |
90 | } |
91 | |
92 | static void |
93 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char) |
94 | { |
95 | size_t i; |
96 | CHAR *s1, *s2; |
97 | |
98 | align1 &= 7; |
99 | if ((align1 + len1) * sizeof (CHAR) >= page_size) |
100 | return; |
101 | |
102 | align2 &= 7; |
103 | if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) |
104 | return; |
105 | |
106 | s1 = (CHAR *) (buf1) + align1; |
107 | s2 = (CHAR *) (buf2) + align2; |
108 | |
109 | for (i = 0; i < len1; ++i) |
110 | s1[i] = 32 + 23 * i % (max_char - 32); |
111 | s1[len1] = '\0'; |
112 | |
113 | for (i = 0; i < len2; i++) |
114 | s2[i] = 32 + 23 * i % (max_char - 32); |
115 | |
116 | FOR_EACH_IMPL (impl, 0) |
117 | { |
118 | s2[len2] = '\0'; |
119 | do_one_test (impl, dst: s2, src: s1); |
120 | } |
121 | } |
122 | |
123 | static void |
124 | do_random_tests (void) |
125 | { |
126 | size_t i, j, n, align1, align2, len1, len2; |
127 | UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; |
128 | UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; |
129 | UCHAR *p3 = (UCHAR *) buf1; |
130 | UCHAR *res; |
131 | |
132 | for (n = 0; n < ITERATIONS; n++) |
133 | { |
134 | align1 = random () & 31; |
135 | if (random () & 1) |
136 | align2 = random () & 31; |
137 | else |
138 | align2 = align1 + (random () & 24); |
139 | len1 = random () & 511; |
140 | if (len1 + align2 > 512) |
141 | len2 = random () & 7; |
142 | else |
143 | len2 = (512 - len1 - align2) * (random () & (1024 * 1024 - 1)) |
144 | / (1024 * 1024); |
145 | j = align1; |
146 | if (align2 + len2 > j) |
147 | j = align2 + len2; |
148 | if (len1 + j >= 511) |
149 | len1 = 510 - j - (random () & 7); |
150 | if (len1 >= 512) |
151 | len1 = 0; |
152 | if (align1 + len1 < 512 - 8) |
153 | { |
154 | j = 510 - align1 - len1 - (random () & 31); |
155 | if (j > 0 && j < 512) |
156 | align1 += j; |
157 | } |
158 | j = len1 + align1 + 64; |
159 | if (j > 512) |
160 | j = 512; |
161 | for (i = 0; i < j; i++) |
162 | { |
163 | if (i == len1 + align1) |
164 | p1[i] = 0; |
165 | else |
166 | { |
167 | p1[i] = random () & BIG_CHAR; |
168 | if (i >= align1 && i < len1 + align1 && !p1[i]) |
169 | p1[i] = (random () & SMALL_CHAR) + 3; |
170 | } |
171 | } |
172 | for (i = 0; i < len2; i++) |
173 | { |
174 | p3[i] = random () & BIG_CHAR; |
175 | if (!p3[i]) |
176 | p3[i] = (random () & SMALL_CHAR) + 3; |
177 | } |
178 | p3[len2] = 0; |
179 | |
180 | FOR_EACH_IMPL (impl, 1) |
181 | { |
182 | MEMSET (p2 - 64, '\1', align2 + 64); |
183 | MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1); |
184 | MEMCPY (p2 + align2, p3, len2 + 1); |
185 | res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), |
186 | (CHAR *) (p1 + align1)); |
187 | if (res != p2 + align2) |
188 | { |
189 | error (status: 0, errnum: 0, format: "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p" , |
190 | n, impl->name, align1, align2, len1, len2, res, |
191 | p2 + align2); |
192 | ret = 1; |
193 | } |
194 | for (j = 0; j < align2 + 64; ++j) |
195 | { |
196 | if (p2[j - 64] != '\1') |
197 | { |
198 | error (status: 0, errnum: 0, format: "Iteration %zd - garbage before, %s (%zd, %zd, %zd, %zd)" , |
199 | n, impl->name, align1, align2, len1, len2); |
200 | ret = 1; |
201 | break; |
202 | } |
203 | } |
204 | if (MEMCMP (p2 + align2, p3, len2)) |
205 | { |
206 | error (status: 0, errnum: 0, format: "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)" , |
207 | n, impl->name, align1, align2, len1, len2); |
208 | ret = 1; |
209 | } |
210 | for (j = align2 + len1 + len2 + 1; j < 512; ++j) |
211 | { |
212 | if (p2[j] != '\1') |
213 | { |
214 | error (status: 0, errnum: 0, format: "Iteration %zd - garbage after, %s (%zd, %zd, %zd, %zd)" , |
215 | n, impl->name, align1, align2, len1, len2); |
216 | ret = 1; |
217 | break; |
218 | } |
219 | } |
220 | if (MEMCMP (p1 + align1, p2 + align2 + len2, len1 + 1)) |
221 | { |
222 | error (status: 0, errnum: 0, format: "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)" , |
223 | n, impl->name, align1, align2, len1, len2); |
224 | ret = 1; |
225 | } |
226 | } |
227 | } |
228 | } |
229 | |
230 | int |
231 | test_main (void) |
232 | { |
233 | size_t i; |
234 | |
235 | test_init (); |
236 | |
237 | printf (format: "%28s" , "" ); |
238 | FOR_EACH_IMPL (impl, 0) |
239 | printf (format: "\t%s" , impl->name); |
240 | putchar (c: '\n'); |
241 | |
242 | for (i = 0; i < 16; ++i) |
243 | { |
244 | do_test (align1: 0, align2: 0, len1: i, len2: i, SMALL_CHAR); |
245 | do_test (align1: 0, align2: 0, len1: i, len2: i, BIG_CHAR); |
246 | do_test (align1: 0, align2: i, len1: i, len2: i, SMALL_CHAR); |
247 | do_test (align1: i, align2: 0, len1: i, len2: i, BIG_CHAR); |
248 | } |
249 | |
250 | for (i = 1; i < 8; ++i) |
251 | { |
252 | do_test (align1: 0, align2: 0, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
253 | do_test (align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
254 | do_test (align1: 0, align2: 0, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
255 | do_test (align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
256 | } |
257 | |
258 | for (i = 1; i < 8; ++i) |
259 | { |
260 | do_test (align1: i, align2: 2 * i, len1: 8 << i, len2: 1, SMALL_CHAR); |
261 | do_test (align1: 2 * i, align2: i, len1: 8 << i, len2: 1, BIG_CHAR); |
262 | do_test (align1: i, align2: i, len1: 8 << i, len2: 10, SMALL_CHAR); |
263 | do_test (align1: i, align2: i, len1: 8 << i, len2: 10, BIG_CHAR); |
264 | } |
265 | |
266 | do_random_tests (); |
267 | return ret; |
268 | } |
269 | |
270 | #include <support/test-driver.c> |
271 | |