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1 | /* Test and measure strcpy functions. | |
2 | Copyright (C) 1999-2019 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Written by Jakub Jelinek <jakub@redhat.com>, 1999. | |
5 | Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011 | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
18 | License along with the GNU C Library; if not, see | |
19 | <https://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #ifdef WIDE | |
22 | # include <wchar.h> | |
23 | # define CHAR wchar_t | |
24 | # define UCHAR wchar_t | |
25 | # define sfmt "ls" | |
26 | # define BIG_CHAR WCHAR_MAX | |
27 | # define SMALL_CHAR 1273 | |
28 | # define STRCMP wcscmp | |
29 | # define MEMCMP wmemcmp | |
30 | # define MEMSET wmemset | |
31 | #else | |
32 | # define CHAR char | |
33 | # define UCHAR unsigned char | |
34 | # define sfmt "s" | |
35 | # define BIG_CHAR CHAR_MAX | |
36 | # define SMALL_CHAR 127 | |
37 | # define STRCMP strcmp | |
38 | # define MEMCMP memcmp | |
39 | # define MEMSET memset | |
40 | #endif | |
41 | ||
42 | #ifndef STRCPY_RESULT | |
43 | # define STRCPY_RESULT(dst, len) dst | |
44 | # define TEST_MAIN | |
45 | # ifndef WIDE | |
46 | # define TEST_NAME "strcpy" | |
47 | # else | |
48 | # define TEST_NAME "wcscpy" | |
49 | # endif | |
50 | # include "test-string.h" | |
51 | # ifndef WIDE | |
52 | # define SIMPLE_STRCPY simple_strcpy | |
53 | # define STRCPY strcpy | |
54 | # else | |
55 | # define SIMPLE_STRCPY simple_wcscpy | |
56 | # define STRCPY wcscpy | |
57 | # endif | |
58 | ||
59 | CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *); | |
60 | ||
61 | IMPL (SIMPLE_STRCPY, 0) | |
62 | IMPL (STRCPY, 1) | |
63 | ||
64 | CHAR * | |
65 | SIMPLE_STRCPY (CHAR *dst, const CHAR *src) | |
66 | { | |
67 | CHAR *ret = dst; | |
68 | while ((*dst++ = *src++) != '\0'); | |
69 | return ret; | |
70 | } | |
71 | #endif | |
72 | ||
73 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); | |
74 | ||
75 | static void | |
76 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, | |
77 | size_t len __attribute__((unused))) | |
78 | { | |
79 | if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len)) | |
80 | { | |
81 | error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
82 | CALL (impl, dst, src), STRCPY_RESULT (dst, len)); | |
83 | ret = 1; | |
84 | return; | |
85 | } | |
86 | ||
87 | if (STRCMP (dst, src) != 0) | |
88 | { | |
89 | error (0, 0, | |
90 | "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", | |
91 | impl->name, dst, src); | |
92 | ret = 1; | |
93 | return; | |
94 | } | |
95 | } | |
96 | ||
97 | static void | |
98 | do_test (size_t align1, size_t align2, size_t len, int max_char) | |
99 | { | |
100 | size_t i; | |
101 | CHAR *s1, *s2; | |
102 | /* For wcscpy: align1 and align2 here mean alignment not in bytes, | |
103 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) | |
104 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ | |
105 | align1 &= 7; | |
106 | if ((align1 + len) * sizeof (CHAR) >= page_size) | |
107 | return; | |
108 | ||
109 | align2 &= 7; | |
110 | if ((align2 + len) * sizeof (CHAR) >= page_size) | |
111 | return; | |
112 | ||
113 | s1 = (CHAR *) (buf1) + align1; | |
114 | s2 = (CHAR *) (buf2) + align2; | |
115 | ||
116 | for (i = 0; i < len; i++) | |
117 | s1[i] = 32 + 23 * i % (max_char - 32); | |
118 | s1[len] = 0; | |
119 | ||
120 | FOR_EACH_IMPL (impl, 0) | |
121 | do_one_test (impl, s2, s1, len); | |
122 | } | |
123 | ||
124 | static void | |
125 | do_random_tests (void) | |
126 | { | |
127 | size_t i, j, n, align1, align2, len; | |
128 | UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; | |
129 | UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; | |
130 | UCHAR *res; | |
131 | ||
132 | for (n = 0; n < ITERATIONS; n++) | |
133 | { | |
134 | /* For wcsrchr: align1 and align2 here mean align not in bytes, | |
135 | but in wchar_ts, in bytes it will equal to align * (sizeof | |
136 | (wchar_t)). For strrchr we need to check all alignments from | |
137 | 0 to 63 since some assembly implementations have separate | |
138 | prolog for alignments more 48. */ | |
139 | ||
140 | align1 = random () & (63 / sizeof (CHAR)); | |
141 | if (random () & 1) | |
142 | align2 = random () & (63 / sizeof (CHAR)); | |
143 | else | |
144 | align2 = align1 + (random () & 24); | |
145 | len = random () & 511; | |
146 | j = align1; | |
147 | if (align2 > j) | |
148 | j = align2; | |
149 | if (len + j >= 511) | |
150 | len = 510 - j - (random () & 7); | |
151 | j = len + align1 + 64; | |
152 | if (j > 512) | |
153 | j = 512; | |
154 | for (i = 0; i < j; i++) | |
155 | { | |
156 | if (i == len + align1) | |
157 | p1[i] = 0; | |
158 | else | |
159 | { | |
160 | p1[i] = random () & BIG_CHAR; | |
161 | if (i >= align1 && i < len + align1 && !p1[i]) | |
162 | p1[i] = (random () & SMALL_CHAR) + 3; | |
163 | } | |
164 | } | |
165 | ||
166 | FOR_EACH_IMPL (impl, 1) | |
167 | { | |
168 | MEMSET (p2 - 64, '\1', 512 + 64); | |
169 | res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), (CHAR *) (p1 + align1)); | |
170 | if (res != STRCPY_RESULT (p2 + align2, len)) | |
171 | { | |
172 | error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p", | |
173 | n, impl->name, align1, align2, len, res, | |
174 | STRCPY_RESULT (p2 + align2, len)); | |
175 | ret = 1; | |
176 | } | |
177 | for (j = 0; j < align2 + 64; ++j) | |
178 | { | |
179 | if (p2[j - 64] != '\1') | |
180 | { | |
181 | error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd)", | |
182 | n, impl->name, align1, align2, len); | |
183 | ret = 1; | |
184 | break; | |
185 | } | |
186 | } | |
187 | for (j = align2 + len + 1; j < 512; ++j) | |
188 | { | |
189 | if (p2[j] != '\1') | |
190 | { | |
191 | error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd)", | |
192 | n, impl->name, align1, align2, len); | |
193 | ret = 1; | |
194 | break; | |
195 | } | |
196 | } | |
197 | if (MEMCMP (p1 + align1, p2 + align2, len + 1)) | |
198 | { | |
199 | error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)", | |
200 | n, impl->name, align1, align2, len); | |
201 | ret = 1; | |
202 | } | |
203 | } | |
204 | } | |
205 | } | |
206 | ||
207 | int | |
208 | test_main (void) | |
209 | { | |
210 | size_t i; | |
211 | ||
212 | test_init (); | |
213 | ||
214 | printf ("%23s", ""); | |
215 | FOR_EACH_IMPL (impl, 0) | |
216 | printf ("\t%s", impl->name); | |
217 | putchar ('\n'); | |
218 | ||
219 | for (i = 0; i < 16; ++i) | |
220 | { | |
221 | do_test (0, 0, i, SMALL_CHAR); | |
222 | do_test (0, 0, i, BIG_CHAR); | |
223 | do_test (0, i, i, SMALL_CHAR); | |
224 | do_test (i, 0, i, BIG_CHAR); | |
225 | } | |
226 | ||
227 | for (i = 1; i < 8; ++i) | |
228 | { | |
229 | do_test (0, 0, 8 << i, SMALL_CHAR); | |
230 | do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR); | |
231 | } | |
232 | ||
233 | for (i = 1; i < 8; ++i) | |
234 | { | |
235 | do_test (i, 2 * i, 8 << i, SMALL_CHAR); | |
236 | do_test (2 * i, i, 8 << i, BIG_CHAR); | |
237 | do_test (i, i, 8 << i, SMALL_CHAR); | |
238 | do_test (i, i, 8 << i, BIG_CHAR); | |
239 | } | |
240 | ||
241 | do_random_tests (); | |
242 | return ret; | |
243 | } | |
244 | ||
245 | #include <support/test-driver.c> |