summaryrefslogtreecommitdiff
path: root/src/regress/lib/libc/strlcat/strlcattest.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/regress/lib/libc/strlcat/strlcattest.c')
-rw-r--r--src/regress/lib/libc/strlcat/strlcattest.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/src/regress/lib/libc/strlcat/strlcattest.c b/src/regress/lib/libc/strlcat/strlcattest.c
deleted file mode 100644
index a86fbed843..0000000000
--- a/src/regress/lib/libc/strlcat/strlcattest.c
+++ /dev/null
@@ -1,171 +0,0 @@
1/* $OpenBSD: strlcattest.c,v 1.5 2021/09/27 19:33:58 millert Exp $ */
2
3/*
4 * Copyright (c) 2014 Todd C. Miller <millert@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24#include <setjmp.h>
25#include <signal.h>
26#include <unistd.h>
27
28volatile sig_atomic_t got_signal;
29sigjmp_buf jmpenv;
30
31void
32handler(int signo)
33{
34 got_signal = signo;
35 siglongjmp(jmpenv, 1);
36}
37
38int
39main(int argc, char *argv[])
40{
41 char *buf, *cp, *ep;
42 struct sigaction sa;
43 size_t len, bufsize;
44 volatile int failures = 0;
45
46 bufsize = getpagesize(); /* trigger guard pages easily */
47 buf = malloc(bufsize);
48 if (buf == NULL) {
49 fprintf(stderr, "unable to allocate memory\n");
50 return 1;
51 }
52 memset(buf, 'z', bufsize);
53 ep = buf + bufsize;
54
55 /* Test appending to an unterminated string. */
56 len = strlcat(buf, "abcd", bufsize);
57 if (len != 4 + bufsize) {
58 fprintf(stderr,
59 "strlcat: failed unterminated buffer test (1a)\n");
60 failures++;
61 }
62 /* Make sure we only wrote where expected. */
63 for (cp = buf; cp < ep; cp++) {
64 if (*cp != 'z') {
65 fprintf(stderr,
66 "strlcat: failed unterminated buffer test (1b)\n");
67 failures++;
68 break;
69 }
70 }
71
72 /* Test appending to a full string. */
73 ep[-1] = '\0';
74 len = strlcat(buf, "abcd", bufsize);
75 if (len != 4 + bufsize - 1) {
76 fprintf(stderr, "strlcat: failed full buffer test (2a)\n");
77 failures++;
78 }
79 /* Make sure we only wrote where expected. */
80 for (cp = buf; cp < ep - 1; cp++) {
81 if (*cp != 'z') {
82 fprintf(stderr,
83 "strlcat: failed full buffer test (2b)\n");
84 failures++;
85 break;
86 }
87 }
88
89 /* Test appending to an empty string. */
90 ep[-1] = 'z';
91 buf[0] = '\0';
92 len = strlcat(buf, "abcd", bufsize);
93 if (len != 4) {
94 fprintf(stderr, "strlcat: failed empty buffer test (3a)\n");
95 failures++;
96 }
97 /* Make sure we only wrote where expected. */
98 if (memcmp(buf, "abcd", sizeof("abcd")) != 0) {
99 fprintf(stderr, "strlcat: failed empty buffer test (3b)\n");
100 failures++;
101 }
102 for (cp = buf + len + 1; cp < ep; cp++) {
103 if (*cp != 'z') {
104 fprintf(stderr,
105 "strlcat: failed empty buffer test (3c)\n");
106 failures++;
107 break;
108 }
109 }
110
111 /* Test appending to a NUL-terminated string. */
112 memcpy(buf, "abcd", sizeof("abcd"));
113 len = strlcat(buf, "efgh", bufsize);
114 if (len != 8) {
115 fprintf(stderr, "strlcat: failed empty buffer test (4a)\n");
116 failures++;
117 }
118 /* Make sure we only wrote where expected. */
119 if (memcmp(buf, "abcdefgh", sizeof("abcdefgh")) != 0) {
120 fprintf(stderr, "strlcat: failed empty buffer test (4b)\n");
121 failures++;
122 }
123 for (cp = buf + len + 1; cp < ep; cp++) {
124 if (*cp != 'z') {
125 fprintf(stderr,
126 "strlcat: failed empty buffer test (4c)\n");
127 failures++;
128 break;
129 }
130 }
131
132 /*
133 * The following tests should result in SIGSEGV, however some
134 * systems may erroneously report SIGBUS.
135 * These tests assume that strlcat() is signal-safe.
136 */
137 memset(&sa, 0, sizeof(sa));
138 sigemptyset(&sa.sa_mask);
139 sa.sa_handler = handler;
140 sigaction(SIGSEGV, &sa, NULL);
141 sigaction(SIGBUS, &sa, NULL);
142
143 /* Test copying to a NULL buffer with non-zero size. */
144 got_signal = 0;
145 if (sigsetjmp(jmpenv, 1) == 0) {
146 len = strlcat(NULL, "abcd", sizeof(buf));
147 fprintf(stderr, "strlcat: failed NULL dst test (5a), "
148 "expected signal %d, got len %zu\n", SIGSEGV, len);
149 failures++;
150 } else if (got_signal != SIGSEGV) {
151 fprintf(stderr, "strlcat: failed NULL dst test (5b), "
152 "expected signal %d, got %d\n", SIGSEGV, got_signal);
153 failures++;
154 }
155
156 /* Test copying from a NULL src. */
157 memcpy(buf, "abcd", sizeof("abcd"));
158 got_signal = 0;
159 if (sigsetjmp(jmpenv, 1) == 0) {
160 len = strlcat(buf, NULL, sizeof(buf));
161 fprintf(stderr, "strlcat: failed NULL src test (6a), "
162 "expected signal %d, got len %zu\n", SIGSEGV, len);
163 failures++;
164 } else if (got_signal != SIGSEGV) {
165 fprintf(stderr, "strlcat: failed NULL src test (6b), "
166 "expected signal %d, got %d\n", SIGSEGV, got_signal);
167 failures++;
168 }
169
170 return failures;
171}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-24 05:44:54 +0000