1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2023 Andreas Bock <andreas.bock@virtual-arts-software.de> 5 * Copyright (c) 2023 Mark Johnston <markj@FreeBSD.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are 9 * met: 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 14 * the documentation and/or other materials provided with the distribution. 15 * 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 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/event.h> 30 #include <sys/wait.h> 31 32 #include <err.h> 33 #include <signal.h> 34 #include <unistd.h> 35 36 #include <atf-c.h> 37 38 /* 39 * A regression test for bugzilla 275286. 40 */ 41 ATF_TC_WITHOUT_HEAD(shared_table_filt_sig); 42 ATF_TC_BODY(shared_table_filt_sig, tc) 43 { 44 struct sigaction sa; 45 pid_t pid; 46 int error, status; 47 48 sa.sa_handler = SIG_IGN; 49 sigemptyset(&sa.sa_mask); 50 sa.sa_flags = 0; 51 error = sigaction(SIGINT, &sa, NULL); 52 ATF_REQUIRE(error == 0); 53 54 pid = rfork(RFPROC); 55 ATF_REQUIRE(pid != -1); 56 if (pid == 0) { 57 struct kevent ev; 58 int kq; 59 60 kq = kqueue(); 61 if (kq < 0) 62 err(1, "kqueue"); 63 EV_SET(&ev, SIGINT, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0, 64 NULL); 65 if (kevent(kq, &ev, 1, NULL, 0, NULL) < 0) 66 err(2, "kevent"); 67 if (kevent(kq, NULL, 0, &ev, 1, NULL) < 0) 68 err(3, "kevent"); 69 _exit(0); 70 } 71 72 /* Wait for the child to block in kevent(). */ 73 usleep(100000); 74 75 error = kill(pid, SIGINT); 76 ATF_REQUIRE(error == 0); 77 78 error = waitpid(pid, &status, 0); 79 ATF_REQUIRE(error != -1); 80 ATF_REQUIRE(WIFEXITED(status)); 81 ATF_REQUIRE_EQ(WEXITSTATUS(status), 0); 82 } 83 84 ATF_TP_ADD_TCS(tp) 85 { 86 ATF_TP_ADD_TC(tp, shared_table_filt_sig); 87 88 return (atf_no_error()); 89 } 90