1 /* Test and measure strncasecmp functions.
2 Copyright (C) 1999-2013 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/>. */
22 #define TEST_NAME "strncasecmp"
23 #include "test-string.h"
25 typedef int (*proto_t
) (const char *, const char *, size_t);
26 static int simple_strncasecmp (const char *, const char *, size_t);
27 static int stupid_strncasecmp (const char *, const char *, size_t);
29 IMPL (stupid_strncasecmp
, 0)
30 IMPL (simple_strncasecmp
, 0)
34 simple_strncasecmp (const char *s1
, const char *s2
, size_t n
)
41 while ((ret
= ((unsigned char) tolower (*s1
)
42 - (unsigned char) tolower (*s2
))) == 0
53 stupid_strncasecmp (const char *s1
, const char *s2
, size_t max
)
55 size_t ns1
= strlen (s1
) + 1;
56 size_t ns2
= strlen (s2
) + 1;
57 size_t n
= ns1
< ns2
? ns1
: ns2
;
64 if ((ret
= ((unsigned char) tolower (*s1
)
65 - (unsigned char) tolower (*s2
))) != 0)
74 check_result (impl_t
*impl
, const char *s1
, const char *s2
, size_t n
,
77 int result
= CALL (impl
, s1
, s2
, n
);
78 if ((exp_result
== 0 && result
!= 0)
79 || (exp_result
< 0 && result
>= 0)
80 || (exp_result
> 0 && result
<= 0))
82 error (0, 0, "Wrong result in function %s %d %d", impl
->name
,
92 do_one_test (impl_t
*impl
, const char *s1
, const char *s2
, size_t n
,
95 if (check_result (impl
, s1
, s2
, n
, exp_result
) < 0)
100 do_test (size_t align1
, size_t align2
, size_t n
, size_t len
, int max_char
,
110 if (align1
+ len
+ 1 >= page_size
)
114 if (align2
+ len
+ 1 >= page_size
)
117 s1
= (char *) (buf1
+ align1
);
118 s2
= (char *) (buf2
+ align2
);
120 for (i
= 0; i
< len
; i
++)
122 s1
[i
] = toupper (1 + 23 * i
% max_char
);
123 s2
[i
] = tolower (s1
[i
]);
126 s1
[len
] = s2
[len
] = 0;
128 s2
[len
+ 1] = 24 + exp_result
;
129 if ((s2
[len
- 1] == 'z' && exp_result
== -1)
130 || (s2
[len
- 1] == 'a' && exp_result
== 1))
131 s1
[len
- 1] += exp_result
;
133 s2
[len
- 1] -= exp_result
;
135 FOR_EACH_IMPL (impl
, 0)
136 do_one_test (impl
, s1
, s2
, n
, exp_result
);
140 do_random_tests (void)
142 size_t i
, j
, n
, align1
, align2
, pos
, len1
, len2
;
145 unsigned char *p1
= buf1
+ page_size
- 512;
146 unsigned char *p2
= buf2
+ page_size
- 512;
148 for (n
= 0; n
< ITERATIONS
; n
++)
150 align1
= random () & 31;
152 align2
= random () & 31;
154 align2
= align1
+ (random () & 24);
155 pos
= random () & 511;
156 j
= align1
> align2
? align1
: align2
;
158 pos
= 510 - j
- (random () & 7);
159 len1
= random () & 511;
160 if (pos
>= len1
&& (random () & 1))
161 len1
= pos
+ (random () & 7);
163 len1
= 511 - j
- (random () & 7);
167 len2
= len1
+ (len1
!= 511 - j
? random () % (511 - j
- len1
) : 0);
168 j
= (pos
> len2
? pos
: len2
) + align1
+ 64;
171 for (i
= 0; i
< j
; ++i
)
173 p1
[i
] = tolower (random () & 255);
174 if (i
< len1
+ align1
&& !p1
[i
])
176 p1
[i
] = tolower (random () & 255);
178 p1
[i
] = tolower (1 + (random () & 127));
181 for (i
= 0; i
< j
; ++i
)
183 p2
[i
] = toupper (random () & 255);
184 if (i
< len2
+ align2
&& !p2
[i
])
186 p2
[i
] = toupper (random () & 255);
188 toupper (p2
[i
] = 1 + (random () & 127));
193 memcpy (p2
+ align2
, p1
+ align1
, pos
);
196 if (tolower (p2
[align2
+ pos
]) == p1
[align1
+ pos
])
198 p2
[align2
+ pos
] = toupper (random () & 255);
199 if (tolower (p2
[align2
+ pos
]) == p1
[align1
+ pos
])
200 p2
[align2
+ pos
] = toupper (p1
[align1
+ pos
]
201 + 3 + (random () & 127));
204 if (p1
[align1
+ pos
] < tolower (p2
[align2
+ pos
]))
209 p1
[len1
+ align1
] = 0;
210 p2
[len2
+ align2
] = 0;
212 FOR_EACH_IMPL (impl
, 1)
214 r
= CALL (impl
, (char *) (p1
+ align1
), (char *) (p2
+ align2
),
215 pos
+ 1 + (random () & 255));
216 /* Test whether on 64-bit architectures where ABI requires
217 callee to promote has the promotion been done. */
218 asm ("" : "=g" (r
) : "0" (r
));
219 if ((r
== 0 && result
)
220 || (r
< 0 && result
>= 0)
221 || (r
> 0 && result
<= 0))
223 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd, %zd, %zd) %ld != %d, p1 %p p2 %p",
224 n
, impl
->name
, align1
, align2
, len1
, len2
, pos
, r
, result
, p1
, p2
);
231 /* Regression test for BZ #12205 */
235 static char cp
[4096+16] __attribute__ ((aligned(4096)));
236 static char gotrel
[4096] __attribute__ ((aligned(4096)));
237 char *s1
= cp
+ 0xffa;
238 char *s2
= gotrel
+ 0xcbe;
242 strcpy (s1
, "gottpoff");
243 strcpy (s2
, "GOTPLT");
245 exp_result
= simple_strncasecmp (s1
, s2
, n
);
246 FOR_EACH_IMPL (impl
, 0)
247 check_result (impl
, s1
, s2
, n
, exp_result
);
250 /* Regression test for BZ #14195 */
254 const char *empty_string
= "";
255 FOR_EACH_IMPL (impl
, 0)
256 check_result (impl
, empty_string
, "", 5, 0);
270 FOR_EACH_IMPL (impl
, 0)
271 printf ("\t%s", impl
->name
);
274 for (i
= 1; i
< 16; ++i
)
276 do_test (i
, i
, i
- 1, i
, 127, 0);
278 do_test (i
, i
, i
, i
, 127, 0);
279 do_test (i
, i
, i
, i
, 127, 1);
280 do_test (i
, i
, i
, i
, 127, -1);
282 do_test (i
, i
, i
+ 1, i
, 127, 0);
283 do_test (i
, i
, i
+ 1, i
, 127, 1);
284 do_test (i
, i
, i
+ 1, i
, 127, -1);
287 for (i
= 1; i
< 10; ++i
)
289 do_test (0, 0, (2 << i
) - 1, 2 << i
, 127, 0);
290 do_test (0, 0, 2 << i
, 2 << i
, 254, 0);
291 do_test (0, 0, (2 << i
) + 1, 2 << i
, 127, 0);
293 do_test (0, 0, (2 << i
) + 1, 2 << i
, 254, 0);
295 do_test (0, 0, 2 << i
, 2 << i
, 127, 1);
296 do_test (0, 0, (2 << i
) + 10, 2 << i
, 127, 1);
298 do_test (0, 0, 2 << i
, 2 << i
, 254, 1);
299 do_test (0, 0, (2 << i
) + 10, 2 << i
, 254, 1);
301 do_test (0, 0, 2 << i
, 2 << i
, 127, -1);
302 do_test (0, 0, (2 << i
) + 10, 2 << i
, 127, -1);
304 do_test (0, 0, 2 << i
, 2 << i
, 254, -1);
305 do_test (0, 0, (2 << i
) + 10, 2 << i
, 254, -1);
308 for (i
= 1; i
< 8; ++i
)
310 do_test (i
, 2 * i
, (8 << i
) - 1, 8 << i
, 127, 0);
311 do_test (i
, 2 * i
, 8 << i
, 8 << i
, 127, 0);
312 do_test (i
, 2 * i
, (8 << i
) + 100, 8 << i
, 127, 0);
314 do_test (2 * i
, i
, (8 << i
) - 1, 8 << i
, 254, 0);
315 do_test (2 * i
, i
, 8 << i
, 8 << i
, 254, 0);
316 do_test (2 * i
, i
, (8 << i
) + 100, 8 << i
, 254, 0);
318 do_test (i
, 2 * i
, 8 << i
, 8 << i
, 127, 1);
319 do_test (i
, 2 * i
, (8 << i
) + 100, 8 << i
, 127, 1);
321 do_test (2 * i
, i
, 8 << i
, 8 << i
, 254, 1);
322 do_test (2 * i
, i
, (8 << i
) + 100, 8 << i
, 254, 1);
324 do_test (i
, 2 * i
, 8 << i
, 8 << i
, 127, -1);
325 do_test (i
, 2 * i
, (8 << i
) + 100, 8 << i
, 127, -1);
327 do_test (2 * i
, i
, 8 << i
, 8 << i
, 254, -1);
328 do_test (2 * i
, i
, (8 << i
) + 100, 8 << i
, 254, -1);
335 #include "../test-skeleton.c"