diff options
Diffstat (limited to 'lib/libc/tests/gen/sigsetops_test.c')
| -rw-r--r-- | lib/libc/tests/gen/sigsetops_test.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/lib/libc/tests/gen/sigsetops_test.c b/lib/libc/tests/gen/sigsetops_test.c new file mode 100644 index 000000000000..a22c4b3f4f59 --- /dev/null +++ b/lib/libc/tests/gen/sigsetops_test.c @@ -0,0 +1,188 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <errno.h> +#include <signal.h> +#include <stdbool.h> + +#include <atf-c.h> + +/* Return the status of the specified sig's bit. */ +static bool +sigbitstatus(const sigset_t *set, int sig) +{ + + return (set->__bits[_SIG_WORD(sig)] & _SIG_BIT(sig)) != 0; +} + +/* Verify that sig is the lone bit set in the sigset. */ +static void +siglonebit(const sigset_t *set, int sig) +{ + int i; + + for (i = 0; i < _SIG_WORDS; ++i) { + if (i != _SIG_WORD(sig)) + ATF_REQUIRE_MSG(set->__bits[i] == 0, + "word %d altered to %x", i, set->__bits[i]); + else + ATF_REQUIRE_MSG((set->__bits[i] & ~_SIG_BIT(sig)) == 0, + "word %d has other bits set: %x", i, + set->__bits[i] & ~_SIG_BIT(sig)); + } +} + +static void +sigcompare(const sigset_t *left, const sigset_t *right) +{ + int i; + + for (i = 0; i < _SIG_WORDS; ++i) { + ATF_REQUIRE_MSG(left->__bits[i] == right->__bits[i], + "sig comparison failed at %d; left=%x, right=%x", + i, left->__bits[i], right->__bits[i]); + } +} + +/* + * Test implementation details of our sigsetops... make sure the correct bits + * are getting set, for the most part, and that duplicate operations don't + * error out. + */ +ATF_TC_WITHOUT_HEAD(posix_sigsetop_test); +ATF_TC_BODY(posix_sigsetop_test, tc) +{ + sigset_t set; + int i; + + ATF_REQUIRE(sigfillset(&set) == 0); + for (i = 0; i < _SIG_WORDS; ++i) { + ATF_REQUIRE_MSG(set.__bits[i] == ~0U, "sigfillset failed @ %d", + i); + } + ATF_REQUIRE(sigemptyset(&set) == 0); + for (i = 0; i < _SIG_WORDS; ++i) { + ATF_REQUIRE_MSG(set.__bits[i] == 0, "sigemptyset failed @ %d", + i); + } + /* Ensure that sigismember reflects the empty set status. */ + for (i = 1; i < NSIG; ++i) { + ATF_REQUIRE(sigismember(&set, i) == 0); + } + + ATF_REQUIRE(sigaddset(&set, -1) == -1 && errno == EINVAL); + ATF_REQUIRE(sigaddset(&set, _SIG_MAXSIG + 1) == -1 && errno == EINVAL); + ATF_REQUIRE(sigdelset(&set, -1) == -1 && errno == EINVAL); + ATF_REQUIRE(sigdelset(&set, _SIG_MAXSIG + 1) == -1 && errno == EINVAL); + + ATF_REQUIRE(sigaddset(&set, SIGSEGV) == 0); + ATF_REQUIRE(sigismember(&set, SIGSEGV) != 0); + ATF_REQUIRE_MSG(sigbitstatus(&set, SIGSEGV), "sigaddset failure"); + siglonebit(&set, SIGSEGV); + + /* + * A second addition should succeed without altering the state. This + * should be trivially true. + */ + ATF_REQUIRE(sigaddset(&set, SIGSEGV) == 0); + ATF_REQUIRE_MSG(sigbitstatus(&set, SIGSEGV), + "sigaddset twice changed bit"); + + ATF_REQUIRE(sigdelset(&set, SIGSEGV) == 0); + ATF_REQUIRE_MSG(!sigbitstatus(&set, SIGSEGV), "sigdelset failure"); + ATF_REQUIRE(sigismember(&set, SIGSEGV) == 0); + ATF_REQUIRE(sigdelset(&set, SIGSEGV) == 0); + ATF_REQUIRE_MSG(!sigbitstatus(&set, SIGSEGV), + "sigdelset twice changed bit"); + for (i = 0; i < _SIG_WORDS; ++i) { + ATF_REQUIRE_MSG(set.__bits[i] == 0, "set not empty @ %d", + i); + } + for (i = 1; i < NSIG; ++i) { + ATF_REQUIRE(sigismember(&set, i) == 0); + } +} + +/* + * Test extended sigset ops for union/intersection and testing of empty set. + */ +ATF_TC_WITHOUT_HEAD(extended_sigsetop_test); +ATF_TC_BODY(extended_sigsetop_test, tc) +{ + sigset_t chkset, set1, set2, set3; + + sigemptyset(&chkset); + sigemptyset(&set1); + sigemptyset(&set2); + ATF_REQUIRE(sigisemptyset(&chkset) != 0); + sigaddset(&set1, SIGSEGV); + sigaddset(&set2, SIGKILL); + sigaddset(&chkset, SIGSEGV); + ATF_REQUIRE(sigisemptyset(&chkset) == 0); + sigaddset(&chkset, SIGKILL); + ATF_REQUIRE(sigorset(&set3, &set1, &set2) == 0); + ATF_REQUIRE(sigbitstatus(&set3, SIGSEGV)); + ATF_REQUIRE(sigbitstatus(&set3, SIGKILL)); + + /* + * chkset was built with our POSIX-specified set operations that we've + * already tested, so it's a good comparison. + */ + sigcompare(&chkset, &set3); + /* + * Clear chkset; make sure sigisemptyset() still looks ok. sigaddset + * and sigdelset have already been tested to make sure that they're not + * touching other bits. + */ + sigdelset(&chkset, SIGSEGV); + sigdelset(&chkset, SIGKILL); + ATF_REQUIRE(sigisemptyset(&chkset) != 0); + ATF_REQUIRE(sigandset(&set3, &set1, &set2) == 0); + /* Make sure we clobbered these. */ + ATF_REQUIRE(!sigbitstatus(&set3, SIGSEGV)); + ATF_REQUIRE(!sigbitstatus(&set3, SIGKILL)); + ATF_REQUIRE(sigisemptyset(&set3) != 0); + /* Rebuild for sigandset test */ + sigemptyset(&set1); + sigemptyset(&set2); + sigaddset(&set1, SIGSEGV); + sigaddset(&set1, SIGKILL); + sigaddset(&set2, SIGSEGV); + ATF_REQUIRE(sigandset(&set3, &set1, &set2) == 0); + ATF_REQUIRE(sigbitstatus(&set3, SIGSEGV)); + ATF_REQUIRE(!sigbitstatus(&set3, SIGKILL)); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, posix_sigsetop_test); + ATF_TP_ADD_TC(tp, extended_sigsetop_test); + + return (atf_no_error()); +} |