1 | /* Test and measure strcasestr functions. |
2 | Copyright (C) 2010-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define TEST_MAIN |
20 | #define TEST_NAME "strcasestr" |
21 | #include "test-string.h" |
22 | |
23 | |
24 | #define STRCASESTR simple_strcasestr |
25 | #define NO_ALIAS |
26 | #define __strncasecmp strncasecmp |
27 | #define __strnlen strnlen |
28 | #include "strcasestr.c" |
29 | |
30 | |
31 | static char * |
32 | stupid_strcasestr (const char *s1, const char *s2) |
33 | { |
34 | ssize_t s1len = strlen (s1); |
35 | ssize_t s2len = strlen (s2); |
36 | |
37 | if (s2len > s1len) |
38 | return NULL; |
39 | |
40 | for (ssize_t i = 0; i <= s1len - s2len; ++i) |
41 | { |
42 | size_t j; |
43 | for (j = 0; j < s2len; ++j) |
44 | if (tolower (s1[i + j]) != tolower (s2[j])) |
45 | break; |
46 | if (j == s2len) |
47 | return (char *) s1 + i; |
48 | } |
49 | |
50 | return NULL; |
51 | } |
52 | |
53 | |
54 | typedef char *(*proto_t) (const char *, const char *); |
55 | |
56 | IMPL (stupid_strcasestr, 0) |
57 | IMPL (simple_strcasestr, 0) |
58 | IMPL (strcasestr, 1) |
59 | |
60 | |
61 | static int |
62 | check_result (impl_t *impl, const char *s1, const char *s2, |
63 | char *exp_result) |
64 | { |
65 | char *result = CALL (impl, s1, s2); |
66 | if (result != exp_result) |
67 | { |
68 | error (status: 0, errnum: 0, format: "Wrong result in function %s %s %s" , impl->name, |
69 | (result == NULL) ? "(null)" : result, |
70 | (exp_result == NULL) ? "(null)" : exp_result); |
71 | ret = 1; |
72 | return -1; |
73 | } |
74 | return 0; |
75 | } |
76 | |
77 | static void |
78 | do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result) |
79 | { |
80 | if (check_result (impl, s1, s2, exp_result) < 0) |
81 | return; |
82 | } |
83 | |
84 | |
85 | static void |
86 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, |
87 | int fail) |
88 | { |
89 | char *s1 = (char *) (buf1 + align1); |
90 | char *s2 = (char *) (buf2 + align2); |
91 | |
92 | static const char d[] = "1234567890abcxyz" ; |
93 | #define dl (sizeof (d) - 1) |
94 | char *ss2 = s2; |
95 | for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) |
96 | { |
97 | size_t t = l > dl ? dl : l; |
98 | ss2 = mempcpy (ss2, d, t); |
99 | } |
100 | s2[len2] = '\0'; |
101 | |
102 | if (fail) |
103 | { |
104 | char *ss1 = s1; |
105 | for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) |
106 | { |
107 | size_t t = l > dl ? dl : l; |
108 | memcpy (ss1, d, t); |
109 | ++ss1[len2 > 7 ? 7 : len2 - 1]; |
110 | ss1 += t; |
111 | } |
112 | } |
113 | else |
114 | { |
115 | memset (s1, '0', len1); |
116 | for (size_t i = 0; i < len2; ++i) |
117 | s1[len1 - len2 + i] = toupper (s2[i]); |
118 | } |
119 | s1[len1] = '\0'; |
120 | |
121 | FOR_EACH_IMPL (impl, 0) |
122 | do_one_test (impl, s1, s2, exp_result: fail ? NULL : s1 + len1 - len2); |
123 | } |
124 | |
125 | static void |
126 | check1 (void) |
127 | { |
128 | const char s1[] = "AOKB" ; |
129 | const char s2[] = "OK" ; |
130 | char *exp_result; |
131 | |
132 | exp_result = stupid_strcasestr (s1, s2); |
133 | FOR_EACH_IMPL (impl, 0) |
134 | check_result (impl, s1, s2, exp_result); |
135 | } |
136 | |
137 | static int |
138 | test_main (void) |
139 | { |
140 | test_init (); |
141 | |
142 | check1 (); |
143 | |
144 | printf (format: "%23s" , "" ); |
145 | FOR_EACH_IMPL (impl, 0) |
146 | printf (format: "\t%s" , impl->name); |
147 | putchar (c: '\n'); |
148 | |
149 | for (size_t klen = 2; klen < 32; ++klen) |
150 | for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) |
151 | { |
152 | do_test (align1: 0, align2: 0, len1: hlen, len2: klen, fail: 0); |
153 | do_test (align1: 0, align2: 0, len1: hlen, len2: klen, fail: 1); |
154 | do_test (align1: 0, align2: 3, len1: hlen, len2: klen, fail: 0); |
155 | do_test (align1: 0, align2: 3, len1: hlen, len2: klen, fail: 1); |
156 | do_test (align1: 0, align2: 9, len1: hlen, len2: klen, fail: 0); |
157 | do_test (align1: 0, align2: 9, len1: hlen, len2: klen, fail: 1); |
158 | do_test (align1: 0, align2: 15, len1: hlen, len2: klen, fail: 0); |
159 | do_test (align1: 0, align2: 15, len1: hlen, len2: klen, fail: 1); |
160 | |
161 | do_test (align1: 3, align2: 0, len1: hlen, len2: klen, fail: 0); |
162 | do_test (align1: 3, align2: 0, len1: hlen, len2: klen, fail: 1); |
163 | do_test (align1: 3, align2: 3, len1: hlen, len2: klen, fail: 0); |
164 | do_test (align1: 3, align2: 3, len1: hlen, len2: klen, fail: 1); |
165 | do_test (align1: 3, align2: 9, len1: hlen, len2: klen, fail: 0); |
166 | do_test (align1: 3, align2: 9, len1: hlen, len2: klen, fail: 1); |
167 | do_test (align1: 3, align2: 15, len1: hlen, len2: klen, fail: 0); |
168 | do_test (align1: 3, align2: 15, len1: hlen, len2: klen, fail: 1); |
169 | |
170 | do_test (align1: 9, align2: 0, len1: hlen, len2: klen, fail: 0); |
171 | do_test (align1: 9, align2: 0, len1: hlen, len2: klen, fail: 1); |
172 | do_test (align1: 9, align2: 3, len1: hlen, len2: klen, fail: 0); |
173 | do_test (align1: 9, align2: 3, len1: hlen, len2: klen, fail: 1); |
174 | do_test (align1: 9, align2: 9, len1: hlen, len2: klen, fail: 0); |
175 | do_test (align1: 9, align2: 9, len1: hlen, len2: klen, fail: 1); |
176 | do_test (align1: 9, align2: 15, len1: hlen, len2: klen, fail: 0); |
177 | do_test (align1: 9, align2: 15, len1: hlen, len2: klen, fail: 1); |
178 | |
179 | do_test (align1: 15, align2: 0, len1: hlen, len2: klen, fail: 0); |
180 | do_test (align1: 15, align2: 0, len1: hlen, len2: klen, fail: 1); |
181 | do_test (align1: 15, align2: 3, len1: hlen, len2: klen, fail: 0); |
182 | do_test (align1: 15, align2: 3, len1: hlen, len2: klen, fail: 1); |
183 | do_test (align1: 15, align2: 9, len1: hlen, len2: klen, fail: 0); |
184 | do_test (align1: 15, align2: 9, len1: hlen, len2: klen, fail: 1); |
185 | do_test (align1: 15, align2: 15, len1: hlen, len2: klen, fail: 0); |
186 | do_test (align1: 15, align2: 15, len1: hlen, len2: klen, fail: 1); |
187 | } |
188 | |
189 | do_test (align1: 0, align2: 0, len1: page_size - 1, len2: 16, fail: 0); |
190 | do_test (align1: 0, align2: 0, len1: page_size - 1, len2: 16, fail: 1); |
191 | |
192 | return ret; |
193 | } |
194 | |
195 | #include <support/test-driver.c> |
196 | |