| /* Test and measure strstr functions. |
| Copyright (C) 2010-2014 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" |