t_ptrace_kill.c revision 1.2.4.2
1 1.2.4.2 perseant /* $NetBSD: t_ptrace_kill.c,v 1.2.4.2 2025/08/02 05:58:07 perseant Exp $ */ 2 1.2.4.2 perseant 3 1.2.4.2 perseant /*- 4 1.2.4.2 perseant * Copyright (c) 2024 The NetBSD Foundation, Inc. 5 1.2.4.2 perseant * All rights reserved. 6 1.2.4.2 perseant * 7 1.2.4.2 perseant * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 perseant * by Christos Zoulas. 9 1.2.4.2 perseant * 10 1.2.4.2 perseant * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 perseant * modification, are permitted provided that the following conditions 12 1.2.4.2 perseant * are met: 13 1.2.4.2 perseant * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 perseant * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 perseant * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 perseant * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 perseant * documentation and/or other materials provided with the distribution. 18 1.2.4.2 perseant * 19 1.2.4.2 perseant * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.4.2 perseant * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.4.2 perseant * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.4.2 perseant * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.4.2 perseant * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.4.2 perseant * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.4.2 perseant * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.4.2 perseant * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.4.2 perseant * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.4.2 perseant * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.4.2 perseant * POSSIBILITY OF SUCH DAMAGE. 30 1.2.4.2 perseant */ 31 1.2.4.2 perseant 32 1.2.4.2 perseant #include <sys/cdefs.h> 33 1.2.4.2 perseant __RCSID("$NetBSD: t_ptrace_kill.c,v 1.2.4.2 2025/08/02 05:58:07 perseant Exp $"); 34 1.2.4.2 perseant 35 1.2.4.2 perseant #include <sys/types.h> 36 1.2.4.2 perseant #include <sys/ptrace.h> 37 1.2.4.2 perseant #include <sys/wait.h> 38 1.2.4.2 perseant #include <pthread.h> 39 1.2.4.2 perseant #include <stdio.h> 40 1.2.4.2 perseant #include <stdlib.h> 41 1.2.4.2 perseant #include <string.h> 42 1.2.4.2 perseant #include <signal.h> 43 1.2.4.2 perseant #include <unistd.h> 44 1.2.4.2 perseant #include <errno.h> 45 1.2.4.2 perseant #include <err.h> 46 1.2.4.2 perseant #include <atf-c.h> 47 1.2.4.2 perseant 48 1.2.4.2 perseant #define SYSCALL(a, b) ATF_REQUIRE_EQ_MSG(a, b, "%s got %s", #a, strerror(errno)) 49 1.2.4.2 perseant 50 1.2.4.2 perseant ATF_TC(pt_kill); 51 1.2.4.2 perseant ATF_TC_HEAD(pt_kill, tc) 52 1.2.4.2 perseant { 53 1.2.4.2 perseant atf_tc_set_md_var(tc, "descr", "Test PT_KILL of a PT_STOP'ed process"); 54 1.2.4.2 perseant } 55 1.2.4.2 perseant 56 1.2.4.2 perseant static void 57 1.2.4.2 perseant child(int *fdto, int *fdfrom) 58 1.2.4.2 perseant { 59 1.2.4.2 perseant char p = '2', q; 60 1.2.4.2 perseant printf("%d: born\n", getpid()); 61 1.2.4.2 perseant write(fdfrom[1], &p, 1); 62 1.2.4.2 perseant read(fdto[0], &q, 1); 63 1.2.4.2 perseant printf("%d: seppuku %c\n", getpid(), q); 64 1.2.4.2 perseant write(fdfrom[1], &p, 1); 65 1.2.4.2 perseant read(fdto[0], &q, 1); 66 1.2.4.2 perseant // *(int *)1 = 0; 67 1.2.4.2 perseant // kill(getpid(), SIGSEGV); 68 1.2.4.2 perseant // kill(getpid(), SIGSTOP); 69 1.2.4.2 perseant for (;;) 70 1.2.4.2 perseant sleep(1); 71 1.2.4.2 perseant 72 1.2.4.2 perseant } 73 1.2.4.2 perseant 74 1.2.4.2 perseant static void * 75 1.2.4.2 perseant waitthread(void *pidp) 76 1.2.4.2 perseant { 77 1.2.4.2 perseant int status = 0; 78 1.2.4.2 perseant pid_t rpid, pid; 79 1.2.4.2 perseant 80 1.2.4.2 perseant pid = *(pid_t *)pidp; 81 1.2.4.2 perseant printf("waiting for %d\n", pid); 82 1.2.4.2 perseant while ((rpid = waitpid(pid, &status, 0)) != pid) { 83 1.2.4.2 perseant printf("waitpid %d = %d status = %#x", pid, rpid, status); 84 1.2.4.2 perseant } 85 1.2.4.2 perseant printf("done waitpid %d = %d status = %#x", pid, rpid, status); 86 1.2.4.2 perseant return NULL; 87 1.2.4.2 perseant } 88 1.2.4.2 perseant 89 1.2.4.2 perseant ATF_TC_BODY(pt_kill, tc) 90 1.2.4.2 perseant { 91 1.2.4.2 perseant pid_t pid; 92 1.2.4.2 perseant int fdto[2], fdfrom[2]; 93 1.2.4.2 perseant char p = '1', q; 94 1.2.4.2 perseant int status; 95 1.2.4.2 perseant pthread_t thread; 96 1.2.4.2 perseant 97 1.2.4.2 perseant SYSCALL(pipe(fdto), 0); 98 1.2.4.2 perseant SYSCALL(pipe(fdfrom), 0); 99 1.2.4.2 perseant switch (pid = fork()) { 100 1.2.4.2 perseant case 0: 101 1.2.4.2 perseant child(fdto, fdfrom); 102 1.2.4.2 perseant break; 103 1.2.4.2 perseant case -1: 104 1.2.4.2 perseant err(EXIT_FAILURE, "fork failed"); 105 1.2.4.2 perseant default: 106 1.2.4.2 perseant SYSCALL(pthread_create(&thread, NULL, waitthread, &pid), 0); 107 1.2.4.2 perseant sleep(1); // XXX: too lazy to sync properly 108 1.2.4.2 perseant SYSCALL(read(fdfrom[0], &q, 1), 1); 109 1.2.4.2 perseant printf("%d: read %c\n", pid, q); 110 1.2.4.2 perseant SYSCALL(ptrace(PT_ATTACH, pid, NULL, 0), 0); 111 1.2.4.2 perseant printf("%d: attached\n", pid); 112 1.2.4.2 perseant SYSCALL(write(fdto[1], &p, 1), 1); 113 1.2.4.2 perseant waitpid(pid, NULL, WNOHANG); 114 1.2.4.2 perseant printf("%d: sent\n", pid); 115 1.2.4.2 perseant SYSCALL(ptrace(PT_CONTINUE, pid, (void *)1, 0), 0); 116 1.2.4.2 perseant SYSCALL(read(fdfrom[0], &p, 1), 1); 117 1.2.4.2 perseant printf("%d: received\n", pid); 118 1.2.4.2 perseant SYSCALL(ptrace(PT_STOP, pid, NULL, 0), 0); 119 1.2.4.2 perseant SYSCALL(ptrace(PT_KILL, pid, NULL, 0), 0); 120 1.2.4.2 perseant SYSCALL(waitpid(pid, &status, 0), pid); 121 1.2.4.2 perseant ATF_REQUIRE(status == 9); 122 1.2.4.2 perseant break; 123 1.2.4.2 perseant } 124 1.2.4.2 perseant } 125 1.2.4.2 perseant 126 1.2.4.2 perseant ATF_TP_ADD_TCS(tp) 127 1.2.4.2 perseant { 128 1.2.4.2 perseant ATF_TP_ADD_TC(tp, pt_kill); 129 1.2.4.2 perseant 130 1.2.4.2 perseant return atf_no_error(); 131 1.2.4.2 perseant } 132
Indexes created Tue Sep 30 17:09:57 GMT 2025