1 /* Test and measure strncasecmp functions.
2 Copyright (C) 1999-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Jakub Jelinek <jakub@redhat.com>, 1999.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
23 #define TEST_NAME "strncasecmp"
24 #include "test-string.h"
26 typedef int (*proto_t) (const char *, const char *, size_t);
27 static int simple_strncasecmp (const char *, const char *, size_t);
28 static int stupid_strncasecmp (const char *, const char *, size_t);
30 IMPL (stupid_strncasecmp, 0)
31 IMPL (simple_strncasecmp, 0)
35 simple_strncasecmp (const char *s1, const char *s2, size_t n)
42 while ((ret = ((unsigned char) tolower (*s1)
43 - (unsigned char) tolower (*s2))) == 0
54 stupid_strncasecmp (const char *s1, const char *s2, size_t max)
56 size_t ns1 = strlen (s1) + 1;
57 size_t ns2 = strlen (s2) + 1;
58 size_t n = ns1 < ns2 ? ns1 : ns2;
65 if ((ret = ((unsigned char) tolower (*s1)
66 - (unsigned char) tolower (*s2))) != 0)
75 check_result (impl_t *impl, const char *s1, const char *s2, size_t n,
78 int result = CALL (impl, s1, s2, n);
79 if ((exp_result == 0 && result != 0)
80 || (exp_result < 0 && result >= 0)
81 || (exp_result > 0 && result <= 0))
83 error (0, 0, "Wrong result in function %s %d %d", impl->name,
93 do_one_test (impl_t *impl, const char *s1, const char *s2, size_t n,
96 if (check_result (impl, s1, s2, n, exp_result) < 0)
101 do_test (size_t align1, size_t align2, size_t n, size_t len, int max_char,
111 if (align1 + len + 1 >= page_size)
115 if (align2 + len + 1 >= page_size)
118 s1 = (char *) (buf1 + align1);
119 s2 = (char *) (buf2 + align2);
121 for (i = 0; i < len; i++)
123 s1[i] = toupper (1 + 23 * i % max_char);
124 s2[i] = tolower (s1[i]);
127 s1[len] = s2[len] = 0;
129 s2[len + 1] = 24 + exp_result;
130 if ((s2[len - 1] == 'z' && exp_result == -1)
131 || (s2[len - 1] == 'a' && exp_result == 1))
132 s1[len - 1] += exp_result;
134 s2[len - 1] -= exp_result;
136 FOR_EACH_IMPL (impl, 0)
137 do_one_test (impl, s1, s2, n, exp_result);
141 do_random_tests (void)
143 size_t i, j, n, align1, align2, pos, len1, len2;
146 unsigned char *p1 = buf1 + page_size - 512;
147 unsigned char *p2 = buf2 + page_size - 512;
149 for (n = 0; n < ITERATIONS; n++)
151 align1 = random () & 31;
153 align2 = random () & 31;
155 align2 = align1 + (random () & 24);
156 pos = random () & 511;
157 j = align1 > align2 ? align1 : align2;
159 pos = 510 - j - (random () & 7);
160 len1 = random () & 511;
161 if (pos >= len1 && (random () & 1))
162 len1 = pos + (random () & 7);
164 len1 = 511 - j - (random () & 7);
168 len2 = len1 + (len1 != 511 - j ? random () % (511 - j - len1) : 0);
169 j = (pos > len2 ? pos : len2) + align1 + 64;
172 for (i = 0; i < j; ++i)
174 p1[i] = tolower (random () & 255);
175 if (i < len1 + align1 && !p1[i])
177 p1[i] = tolower (random () & 255);
179 p1[i] = tolower (1 + (random () & 127));
182 for (i = 0; i < j; ++i)
184 p2[i] = toupper (random () & 255);
185 if (i < len2 + align2 && !p2[i])
187 p2[i] = toupper (random () & 255);
189 toupper (p2[i] = 1 + (random () & 127));
194 memcpy (p2 + align2, p1 + align1, pos);
197 if (tolower (p2[align2 + pos]) == p1[align1 + pos])
199 p2[align2 + pos] = toupper (random () & 255);
200 if (tolower (p2[align2 + pos]) == p1[align1 + pos])
201 p2[align2 + pos] = toupper (p1[align1 + pos]
202 + 3 + (random () & 127));
205 if (p1[align1 + pos] < tolower (p2[align2 + pos]))
210 p1[len1 + align1] = 0;
211 p2[len2 + align2] = 0;
213 FOR_EACH_IMPL (impl, 1)
215 r = CALL (impl, (char *) (p1 + align1), (char *) (p2 + align2),
216 pos + 1 + (random () & 255));
217 /* Test whether on 64-bit architectures where ABI requires
218 callee to promote has the promotion been done. */
219 asm ("" : "=g" (r) : "0" (r));
220 if ((r == 0 && result)
221 || (r < 0 && result >= 0)
222 || (r > 0 && result <= 0))
224 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd, %zd, %zd) %ld != %d, p1 %p p2 %p",
225 n, impl->name, align1, align2, len1, len2, pos, r, result, p1, p2);
232 /* Regression test for BZ #12205 */
236 static char cp [4096+16] __attribute__ ((aligned(4096)));
237 static char gotrel[4096] __attribute__ ((aligned(4096)));
238 char *s1 = cp + 0xffa;
239 char *s2 = gotrel + 0xcbe;
243 strcpy (s1, "gottpoff");
244 strcpy (s2, "GOTPLT");
246 exp_result = simple_strncasecmp (s1, s2, n);
247 FOR_EACH_IMPL (impl, 0)
248 check_result (impl, s1, s2, n, exp_result);
251 /* Regression test for BZ #14195 */
255 const char *empty_string = "";
256 FOR_EACH_IMPL (impl, 0)
257 check_result (impl, empty_string, "", 5, 0);
261 test_locale (const char *locale)
265 if (setlocale (LC_CTYPE, locale) == NULL)
267 error (0, 0, "cannot set locale \"%s\"", locale);
274 printf ("%23s", locale);
275 FOR_EACH_IMPL (impl, 0)
276 printf ("\t%s", impl->name);
279 for (i = 1; i < 16; ++i)
281 do_test (i, i, i - 1, i, 127, 0);
283 do_test (i, i, i, i, 127, 0);
284 do_test (i, i, i, i, 127, 1);
285 do_test (i, i, i, i, 127, -1);
287 do_test (i, i, i + 1, i, 127, 0);
288 do_test (i, i, i + 1, i, 127, 1);
289 do_test (i, i, i + 1, i, 127, -1);
292 for (i = 1; i < 10; ++i)
294 do_test (0, 0, (2 << i) - 1, 2 << i, 127, 0);
295 do_test (0, 0, 2 << i, 2 << i, 254, 0);
296 do_test (0, 0, (2 << i) + 1, 2 << i, 127, 0);
298 do_test (0, 0, (2 << i) + 1, 2 << i, 254, 0);
300 do_test (0, 0, 2 << i, 2 << i, 127, 1);
301 do_test (0, 0, (2 << i) + 10, 2 << i, 127, 1);
303 do_test (0, 0, 2 << i, 2 << i, 254, 1);
304 do_test (0, 0, (2 << i) + 10, 2 << i, 254, 1);
306 do_test (0, 0, 2 << i, 2 << i, 127, -1);
307 do_test (0, 0, (2 << i) + 10, 2 << i, 127, -1);
309 do_test (0, 0, 2 << i, 2 << i, 254, -1);
310 do_test (0, 0, (2 << i) + 10, 2 << i, 254, -1);
313 for (i = 1; i < 8; ++i)
315 do_test (i, 2 * i, (8 << i) - 1, 8 << i, 127, 0);
316 do_test (i, 2 * i, 8 << i, 8 << i, 127, 0);
317 do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 0);
319 do_test (2 * i, i, (8 << i) - 1, 8 << i, 254, 0);
320 do_test (2 * i, i, 8 << i, 8 << i, 254, 0);
321 do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 0);
323 do_test (i, 2 * i, 8 << i, 8 << i, 127, 1);
324 do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 1);
326 do_test (2 * i, i, 8 << i, 8 << i, 254, 1);
327 do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 1);
329 do_test (i, 2 * i, 8 << i, 8 << i, 127, -1);
330 do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, -1);
332 do_test (2 * i, i, 8 << i, 8 << i, 254, -1);
333 do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, -1);
345 test_locale ("en_US.ISO-8859-1");
346 test_locale ("en_US.UTF-8");
347 test_locale ("tr_TR.ISO-8859-9");
348 test_locale ("tr_TR.UTF-8");
353 #include "../test-skeleton.c"