1 /*
2 * Copyright © 2005-2020 Rich Felker
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #define _BSD_SOURCE
24 #include <stdio.h>
25 #include <string.h>
26
27 /* r = place to store result
28 * f = function call to test (or any expression)
29 * x = expected result
30 * m = message to print on failure (with formats for r & x)
31 **/
32
33 #pragma GCC diagnostic ignored "-Wpragmas"
34 #pragma GCC diagnostic ignored "-Wunknown-warning-option"
35 #pragma GCC diagnostic ignored "-Wformat-extra-args"
36 #pragma GCC diagnostic ignored "-Wformat"
37 #pragma GCC diagnostic ignored "-Wstringop-truncation"
38
39 #define TEST(r, f, x, m) do { \
40 (r) = (f); \
41 if ((r) != (x)) { \
42 printf("%s:%d: %s failed (" m ")\n", __FILE__, __LINE__, #f, r, x ); \
43 err++; \
44 } \
45 } while(0)
46
47 #define TEST_S(s, x, m) do { \
48 if (strcmp((s),(x)) != 0) { \
49 printf(__FILE__ ":%d: [%s] != [%s] (%s)\n", __LINE__, s, x, m); \
50 err++; \
51 } \
52 } while(0)
53
54
test_string(void)55 int test_string(void)
56 {
57 char b[32];
58 char *s;
59 int i;
60 int err=0;
61
62 b[16]='a'; b[17]='b'; b[18]='c'; b[19]=0;
63 TEST(s, strcpy(b, b+16), b, "wrong return %p != %p");
64 TEST_S(s, "abc", "strcpy gave incorrect string");
65 TEST(s, strcpy(b+1, b+16), b+1, "wrong return %p != %p");
66 TEST_S(s, "abc", "strcpy gave incorrect string");
67 TEST(s, strcpy(b+2, b+16), b+2, "wrong return %p != %p");
68 TEST_S(s, "abc", "strcpy gave incorrect string");
69 TEST(s, strcpy(b+3, b+16), b+3, "wrong return %p != %p");
70 TEST_S(s, "abc", "strcpy gave incorrect string");
71
72 TEST(s, strcpy(b+1, b+17), b+1, "wrong return %p != %p");
73 TEST_S(s, "bc", "strcpy gave incorrect string");
74 TEST(s, strcpy(b+2, b+18), b+2, "wrong return %p != %p");
75 TEST_S(s, "c", "strcpy gave incorrect string");
76 TEST(s, strcpy(b+3, b+19), b+3, "wrong return %p != %p");
77 TEST_S(s, "", "strcpy gave incorrect string");
78
79 TEST(s, memset(b, 'x', sizeof b), b, "wrong return %p != %p");
80 TEST(s, strncpy(b, "abc", sizeof b - 1), b, "wrong return %p != %p");
81 TEST(i, memcmp(b, "abc\0\0\0\0", 8), 0, "strncpy fails to zero-pad dest");
82 TEST(i, b[sizeof b - 1], 'x', "strncpy overruns buffer when n > strlen(src)");
83
84 b[3] = 'x'; b[4] = 0;
85 strncpy(b, "abc", 3);
86 TEST(i, b[2], 'c', "strncpy fails to copy last byte: %hhu != %hhu");
87 TEST(i, b[3], 'x', "strncpy overruns buffer to null-terminate: %hhu != %hhu");
88
89 TEST(i, !strncmp("abcd", "abce", 3), 1, "strncmp compares past n");
90 TEST(i, !!strncmp("abc", "abd", 3), 1, "strncmp fails to compare n-1st byte");
91
92 strcpy(b, "abc");
93 TEST(s, strncat(b, "123456", 3), b, "%p != %p");
94 TEST(i, b[6], 0, "strncat failed to null-terminate (%d)");
95 TEST_S(s, "abc123", "strncat gave incorrect string");
96
97 strcpy(b, "aaababccdd0001122223");
98 TEST(s, strchr(b, 'b'), b+3, "%p != %p");
99 TEST(s, strrchr(b, 'b'), b+5, "%p != %p");
100 TEST(i, strspn(b, "abcd"), 10, "%d != %d");
101 TEST(i, strcspn(b, "0123"), 10, "%d != %d");
102 TEST(s, strpbrk(b, "0123"), b+10, "%p != %p");
103
104 strcpy(b, "abc 123; xyz; foo");
105 TEST(s, strtok(b, " "), b, "%p != %p");
106 TEST_S(s, "abc", "strtok result");
107
108 TEST(s, strtok(NULL, ";"), b+4, "%p != %p");
109 TEST_S(s, " 123", "strtok result");
110
111 TEST(s, strtok(NULL, " ;"), b+11, "%p != %p");
112 TEST_S(s, "xyz", "strtok result");
113
114 TEST(s, strtok(NULL, " ;"), b+16, "%p != %p");
115 TEST_S(s, "foo", "strtok result");
116
117 #ifdef HAVE_BSD_STRL
118 memset(b, 'x', sizeof b);
119 TEST(i, strlcpy(b, "abc", sizeof b - 1), 3, "length %d != %d");
120 TEST(i, b[3], 0, "strlcpy did not null-terminate short string (%d)");
121 TEST(i, b[4], 'x', "strlcpy wrote extra bytes (%d)");
122
123 memset(b, 'x', sizeof b);
124 TEST(i, strlcpy(b, "abc", 2), 3, "length %d != %d");
125 TEST(i, b[0], 'a', "strlcpy did not copy character %d");
126 TEST(i, b[1], 0, "strlcpy did not null-terminate long string (%d)");
127
128 memset(b, 'x', sizeof b);
129 TEST(i, strlcpy(b, "abc", 3), 3, "length %d != %d");
130 TEST(i, b[2], 0, "strlcpy did not null-terminate l-length string (%d)");
131
132 TEST(i, strlcpy(NULL, "abc", 0), 3, "length %d != %d");
133
134 memcpy(b, "abc\0\0\0x\0", 8);
135 TEST(i, strlcat(b, "123", sizeof b), 6, "length %d != %d");
136 TEST_S(b, "abc123", "strlcat result");
137
138 memcpy(b, "abc\0\0\0x\0", 8);
139 TEST(i, strlcat(b, "123", 6), 6, "length %d != %d");
140 TEST_S(b, "abc12", "strlcat result");
141 TEST(i, b[6], 'x', "strlcat wrote past string %d != %d");
142
143 memcpy(b, "abc\0\0\0x\0", 8);
144 TEST(i, strlcat(b, "123", 4), 6, "length %d != %d");
145 TEST_S(b, "abc", "strlcat result");
146
147 memcpy(b, "abc\0\0\0x\0", 8);
148 TEST(i, strlcat(b, "123", 3), 6, "length %d != %d");
149 TEST_S(b, "abc", "strlcat result");
150 #endif
151
152 return err;
153 }
154
155 #define TEST_NAME string
156 #include "testcase.h"
157
