2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
38 /* Return the status of the specified sig's bit. */
40 sigbitstatus(const sigset_t *set, int sig)
43 return (set->__bits[_SIG_WORD(sig)] & _SIG_BIT(sig)) != 0;
46 /* Verify that sig is the lone bit set in the sigset. */
48 siglonebit(const sigset_t *set, int sig)
52 for (i = 0; i < _SIG_WORDS; ++i) {
53 if (i != _SIG_WORD(sig))
54 ATF_REQUIRE_MSG(set->__bits[i] == 0,
55 "word %d altered to %x", i, set->__bits[i]);
57 ATF_REQUIRE_MSG((set->__bits[i] & ~_SIG_BIT(sig)) == 0,
58 "word %d has other bits set: %x", i,
59 set->__bits[i] & ~_SIG_BIT(sig));
64 sigcompare(const sigset_t *left, const sigset_t *right)
68 for (i = 0; i < _SIG_WORDS; ++i) {
69 ATF_REQUIRE_MSG(left->__bits[i] == right->__bits[i],
70 "sig comparison failed at %d; left=%x, right=%x",
71 i, left->__bits[i], right->__bits[i]);
76 * Test implementation details of our sigsetops... make sure the correct bits
77 * are getting set, for the most part, and that duplicate operations don't
80 ATF_TC_WITHOUT_HEAD(posix_sigsetop_test);
81 ATF_TC_BODY(posix_sigsetop_test, tc)
86 ATF_REQUIRE(sigfillset(&set) == 0);
87 for (i = 0; i < _SIG_WORDS; ++i) {
88 ATF_REQUIRE_MSG(set.__bits[i] == ~0U, "sigfillset failed @ %d",
91 ATF_REQUIRE(sigemptyset(&set) == 0);
92 for (i = 0; i < _SIG_WORDS; ++i) {
93 ATF_REQUIRE_MSG(set.__bits[i] == 0, "sigemptyset failed @ %d",
96 /* Ensure that sigismember reflects the empty set status. */
97 for (i = 1; i < NSIG; ++i) {
98 ATF_REQUIRE(sigismember(&set, i) == 0);
101 ATF_REQUIRE(sigaddset(&set, -1) == -1 && errno == EINVAL);
102 ATF_REQUIRE(sigaddset(&set, _SIG_MAXSIG + 1) == -1 && errno == EINVAL);
103 ATF_REQUIRE(sigdelset(&set, -1) == -1 && errno == EINVAL);
104 ATF_REQUIRE(sigdelset(&set, _SIG_MAXSIG + 1) == -1 && errno == EINVAL);
106 ATF_REQUIRE(sigaddset(&set, SIGSEGV) == 0);
107 ATF_REQUIRE(sigismember(&set, SIGSEGV) != 0);
108 ATF_REQUIRE_MSG(sigbitstatus(&set, SIGSEGV), "sigaddset failure");
109 siglonebit(&set, SIGSEGV);
112 * A second addition should succeed without altering the state. This
113 * should be trivially true.
115 ATF_REQUIRE(sigaddset(&set, SIGSEGV) == 0);
116 ATF_REQUIRE_MSG(sigbitstatus(&set, SIGSEGV),
117 "sigaddset twice changed bit");
119 ATF_REQUIRE(sigdelset(&set, SIGSEGV) == 0);
120 ATF_REQUIRE_MSG(!sigbitstatus(&set, SIGSEGV), "sigdelset failure");
121 ATF_REQUIRE(sigismember(&set, SIGSEGV) == 0);
122 ATF_REQUIRE(sigdelset(&set, SIGSEGV) == 0);
123 ATF_REQUIRE_MSG(!sigbitstatus(&set, SIGSEGV),
124 "sigdelset twice changed bit");
125 for (i = 0; i < _SIG_WORDS; ++i) {
126 ATF_REQUIRE_MSG(set.__bits[i] == 0, "set not empty @ %d",
129 for (i = 1; i < NSIG; ++i) {
130 ATF_REQUIRE(sigismember(&set, i) == 0);
135 * Test extended sigset ops for union/intersection and testing of empty set.
137 ATF_TC_WITHOUT_HEAD(extended_sigsetop_test);
138 ATF_TC_BODY(extended_sigsetop_test, tc)
140 sigset_t chkset, set1, set2, set3;
142 sigemptyset(&chkset);
145 ATF_REQUIRE(sigisemptyset(&chkset) != 0);
146 sigaddset(&set1, SIGSEGV);
147 sigaddset(&set2, SIGKILL);
148 sigaddset(&chkset, SIGSEGV);
149 ATF_REQUIRE(sigisemptyset(&chkset) == 0);
150 sigaddset(&chkset, SIGKILL);
151 ATF_REQUIRE(sigorset(&set3, &set1, &set2) == 0);
152 ATF_REQUIRE(sigbitstatus(&set3, SIGSEGV));
153 ATF_REQUIRE(sigbitstatus(&set3, SIGKILL));
156 * chkset was built with our POSIX-specified set operations that we've
157 * already tested, so it's a good comparison.
159 sigcompare(&chkset, &set3);
161 * Clear chkset; make sure sigisemptyset() still looks ok. sigaddset
162 * and sigdelset have already been tested to make sure that they're not
163 * touching other bits.
165 sigdelset(&chkset, SIGSEGV);
166 sigdelset(&chkset, SIGKILL);
167 ATF_REQUIRE(sigisemptyset(&chkset) != 0);
168 ATF_REQUIRE(sigandset(&set3, &set1, &set2) == 0);
169 /* Make sure we clobbered these. */
170 ATF_REQUIRE(!sigbitstatus(&set3, SIGSEGV));
171 ATF_REQUIRE(!sigbitstatus(&set3, SIGKILL));
172 ATF_REQUIRE(sigisemptyset(&set3) != 0);
173 /* Rebuild for sigandset test */
176 sigaddset(&set1, SIGSEGV);
177 sigaddset(&set1, SIGKILL);
178 sigaddset(&set2, SIGSEGV);
179 ATF_REQUIRE(sigandset(&set3, &set1, &set2) == 0);
180 ATF_REQUIRE(sigbitstatus(&set3, SIGSEGV));
181 ATF_REQUIRE(!sigbitstatus(&set3, SIGKILL));
187 ATF_TP_ADD_TC(tp, posix_sigsetop_test);
188 ATF_TP_ADD_TC(tp, extended_sigsetop_test);
190 return (atf_no_error());