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glibc/string/test-strstr.c
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/* Test and measure strstr functions. | |
Copyright (C) 2010-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Written by Ulrich Drepper <drepper@redhat.com>, 2010. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#define TEST_MAIN | |
#define TEST_NAME "strstr" | |
#include "test-string.h" | |
#define STRSTR simple_strstr | |
#include "strstr.c" | |
static char * | |
stupid_strstr (const char *s1, const char *s2) | |
{ | |
ssize_t s1len = strlen (s1); | |
ssize_t s2len = strlen (s2); | |
if (s2len > s1len) | |
return NULL; | |
for (ssize_t i = 0; i <= s1len - s2len; ++i) | |
{ | |
size_t j; | |
for (j = 0; j < s2len; ++j) | |
if (s1[i + j] != s2[j]) | |
break; | |
if (j == s2len) | |
return (char *) s1 + i; | |
} | |
return NULL; | |
} | |
typedef char *(*proto_t) (const char *, const char *); | |
IMPL (stupid_strstr, 0) | |
IMPL (simple_strstr, 0) | |
IMPL (strstr, 1) | |
static int | |
check_result (impl_t *impl, const char *s1, const char *s2, | |
char *exp_result) | |
{ | |
char *result = CALL (impl, s1, s2); | |
if (result != exp_result) | |
{ | |
error (0, 0, "Wrong result in function %s %s %s", impl->name, | |
result, exp_result); | |
ret = 1; | |
return -1; | |
} | |
return 0; | |
} | |
static void | |
do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result) | |
{ | |
if (check_result (impl, s1, s2, exp_result) < 0) | |
return; | |
} | |
static void | |
do_test (size_t align1, size_t align2, size_t len1, size_t len2, | |
int fail) | |
{ | |
char *s1 = (char *) (buf1 + align1); | |
char *s2 = (char *) (buf2 + align2); | |
static const char d[] = "1234567890abcdef"; | |
#define dl (sizeof (d) - 1) | |
char *ss2 = s2; | |
for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) | |
{ | |
size_t t = l > dl ? dl : l; | |
ss2 = mempcpy (ss2, d, t); | |
} | |
s2[len2] = '\0'; | |
if (fail) | |
{ | |
char *ss1 = s1; | |
for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) | |
{ | |
size_t t = l > dl ? dl : l; | |
memcpy (ss1, d, t); | |
++ss1[len2 > 7 ? 7 : len2 - 1]; | |
ss1 += t; | |
} | |
} | |
else | |
{ | |
memset (s1, '0', len1); | |
memcpy (s1 + len1 - len2, s2, len2); | |
} | |
s1[len1] = '\0'; | |
FOR_EACH_IMPL (impl, 0) | |
do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2); | |
} | |
static void | |
check1 (void) | |
{ | |
const char s1[] = | |
"F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD_C3_A7_20_EF_BF_BD"; | |
const char s2[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"; | |
char *exp_result; | |
exp_result = stupid_strstr (s1, s2); | |
FOR_EACH_IMPL (impl, 0) | |
check_result (impl, s1, s2, exp_result); | |
} | |
static void | |
check2 (void) | |
{ | |
const char s1[] = ", enable_static, \0, enable_shared, "; | |
char *exp_result; | |
char *s2 = (void *) buf1 + page_size - 18; | |
strcpy (s2, s1); | |
exp_result = stupid_strstr (s1, s1 + 18); | |
FOR_EACH_IMPL (impl, 0) | |
{ | |
check_result (impl, s1, s1 + 18, exp_result); | |
check_result (impl, s2, s1 + 18, exp_result); | |
} | |
} | |
static int | |
test_main (void) | |
{ | |
test_init (); | |
check1 (); | |
check2 (); | |
printf ("%23s", ""); | |
FOR_EACH_IMPL (impl, 0) | |
printf ("\t%s", impl->name); | |
putchar ('\n'); | |
for (size_t klen = 2; klen < 32; ++klen) | |
for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) | |
{ | |
do_test (0, 0, hlen, klen, 0); | |
do_test (0, 0, hlen, klen, 1); | |
do_test (0, 3, hlen, klen, 0); | |
do_test (0, 3, hlen, klen, 1); | |
do_test (0, 9, hlen, klen, 0); | |
do_test (0, 9, hlen, klen, 1); | |
do_test (0, 15, hlen, klen, 0); | |
do_test (0, 15, hlen, klen, 1); | |
do_test (3, 0, hlen, klen, 0); | |
do_test (3, 0, hlen, klen, 1); | |
do_test (3, 3, hlen, klen, 0); | |
do_test (3, 3, hlen, klen, 1); | |
do_test (3, 9, hlen, klen, 0); | |
do_test (3, 9, hlen, klen, 1); | |
do_test (3, 15, hlen, klen, 0); | |
do_test (3, 15, hlen, klen, 1); | |
do_test (9, 0, hlen, klen, 0); | |
do_test (9, 0, hlen, klen, 1); | |
do_test (9, 3, hlen, klen, 0); | |
do_test (9, 3, hlen, klen, 1); | |
do_test (9, 9, hlen, klen, 0); | |
do_test (9, 9, hlen, klen, 1); | |
do_test (9, 15, hlen, klen, 0); | |
do_test (9, 15, hlen, klen, 1); | |
do_test (15, 0, hlen, klen, 0); | |
do_test (15, 0, hlen, klen, 1); | |
do_test (15, 3, hlen, klen, 0); | |
do_test (15, 3, hlen, klen, 1); | |
do_test (15, 9, hlen, klen, 0); | |
do_test (15, 9, hlen, klen, 1); | |
do_test (15, 15, hlen, klen, 0); | |
do_test (15, 15, hlen, klen, 1); | |
} | |
do_test (0, 0, page_size - 1, 16, 0); | |
do_test (0, 0, page_size - 1, 16, 1); | |
return ret; | |
} | |
#include "../test-skeleton.c" |