diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_kill.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_kill.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_kill.c b/contrib/netbsd-tests/lib/libc/sys/t_kill.c new file mode 100644 index 0000000..2f42862 --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/sys/t_kill.c @@ -0,0 +1,312 @@ +/* $NetBSD: t_kill.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */ + +/*- + * Copyright (c) 2011 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jukka Ruohonen. + * + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h> +__RCSID("$NetBSD: t_kill.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); + +#include <sys/wait.h> + +#include <errno.h> +#include <limits.h> +#include <pwd.h> +#include <signal.h> +#include <stdlib.h> +#include <unistd.h> + +#include <atf-c.h> + +ATF_TC(kill_basic); +ATF_TC_HEAD(kill_basic, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test that kill(2) works"); +} + +ATF_TC_BODY(kill_basic, tc) +{ + const int sig[] = { SIGHUP, SIGINT, SIGKILL, SIGTERM }; + pid_t pid; + size_t i; + int sta; + + for (i = 0; i < __arraycount(sig); i++) { + + pid = fork(); + ATF_REQUIRE(pid >= 0); + + switch (pid) { + + case 0: + pause(); + break; + + default: + ATF_REQUIRE(kill(pid, sig[i]) == 0); + } + + (void)wait(&sta); + + if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != sig[i]) + atf_tc_fail("kill(2) failed to kill child"); + } +} + +ATF_TC(kill_err); +ATF_TC_HEAD(kill_err, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test error conditions of kill(2)"); +} + +ATF_TC_BODY(kill_err, tc) +{ + int rv, sta; + pid_t pid; + + pid = fork(); + ATF_REQUIRE(pid >= 0); + + if (pid == 0) { + + errno = 0; + rv = kill(getpid(), -1); + + if (rv == 0 || errno != EINVAL) + _exit(EINVAL); + + errno = 0; + rv = kill(INT_MAX, SIGUSR1); + + if (rv == 0 || errno != ESRCH) + _exit(ESRCH); + + _exit(EXIT_SUCCESS); + } + + (void)wait(&sta); + + if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS) { + + if (WEXITSTATUS(sta) == EINVAL) + atf_tc_fail("expected EINVAL, but kill(2) succeeded"); + + if (WEXITSTATUS(sta) == ESRCH) + atf_tc_fail("expected ESRCH, but kill(2) succeeded"); + + atf_tc_fail("unknown error from kill(2)"); + } +} + +ATF_TC(kill_perm); +ATF_TC_HEAD(kill_perm, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test kill(2) permissions"); + atf_tc_set_md_var(tc, "require.user", "root"); +} + +ATF_TC_BODY(kill_perm, tc) +{ + struct passwd *pw; + pid_t cpid, ppid; + uid_t cuid = 0; + uid_t puid = 0; + int sta; + + /* + * Test that kill(2) fails when called + * for a PID owned by another user. + */ + pw = getpwnam("operator"); + + if (pw != NULL) + cuid = pw->pw_uid; + + pw = getpwnam("nobody"); + + if (pw != NULL) + puid = pw->pw_uid; + + if (cuid == 0 || puid == 0 || cuid == puid) + atf_tc_fail("getpwnam(3) failed"); + + ppid = fork(); + + if (ppid < 0) + _exit(EXIT_FAILURE); + + if (ppid == 0) { + + cpid = fork(); + + if (cpid < 0) + _exit(EXIT_FAILURE); + + if (cpid == 0) { + + if (setuid(cuid) < 0) + _exit(EXIT_FAILURE); + else { + (void)sleep(1); + } + + _exit(EXIT_SUCCESS); + } + + /* + * Try to kill the child after having + * set the real and effective UID. + */ + if (setuid(puid) != 0) + _exit(EXIT_FAILURE); + + errno = 0; + + if (kill(cpid, SIGKILL) == 0) + _exit(EPERM); + + if (errno != EPERM) + _exit(EPERM); + + (void)waitpid(cpid, &sta, 0); + + _exit(EXIT_SUCCESS); + } + + (void)waitpid(ppid, &sta, 0); + + if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) == EPERM) + atf_tc_fail("killed a process of another user"); + + if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS) + atf_tc_fail("unknown error from kill(2)"); +} + +ATF_TC(kill_pgrp_neg); +ATF_TC_HEAD(kill_pgrp_neg, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test kill(2) with process group, #2"); +} + +ATF_TC_BODY(kill_pgrp_neg, tc) +{ + const int maxiter = 3; + pid_t cpid, ppid; + int i, sta; + + ppid = fork(); + ATF_REQUIRE(ppid >= 0); + + if (ppid == 0) { + + ATF_REQUIRE(setpgid(0, 0) == 0); + + for (i = 0; i < maxiter; i++) { + + cpid = fork(); + ATF_REQUIRE(cpid >= 0); + + if (cpid == 0) + pause(); + } + + /* + * Test the variant of killpg(3); if the process number + * is negative but not -1, the signal should be sent to + * all processes whose process group ID is equal to the + * absolute value of the process number. + */ + ATF_REQUIRE(kill(-getpgrp(), SIGKILL) == 0); + + (void)sleep(1); + + _exit(EXIT_SUCCESS); + } + + (void)waitpid(ppid, &sta, 0); + + if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != SIGKILL) + atf_tc_fail("failed to kill(2) a process group"); +} + +ATF_TC(kill_pgrp_zero); +ATF_TC_HEAD(kill_pgrp_zero, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test kill(2) with process group, #1"); +} + +ATF_TC_BODY(kill_pgrp_zero, tc) +{ + const int maxiter = 3; + pid_t cpid, ppid; + int i, sta; + + ppid = fork(); + ATF_REQUIRE(ppid >= 0); + + if (ppid == 0) { + + ATF_REQUIRE(setpgid(0, 0) == 0); + + for (i = 0; i < maxiter; i++) { + + cpid = fork(); + ATF_REQUIRE(cpid >= 0); + + if (cpid == 0) + pause(); + } + + /* + * If the supplied process number is zero, + * the signal should be sent to all processes + * under the current process group. + */ + ATF_REQUIRE(kill(0, SIGKILL) == 0); + + (void)sleep(1); + + _exit(EXIT_SUCCESS); + } + + (void)waitpid(ppid, &sta, 0); + + if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != SIGKILL) + atf_tc_fail("failed to kill(2) a process group"); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, kill_basic); + ATF_TP_ADD_TC(tp, kill_err); + ATF_TP_ADD_TC(tp, kill_perm); + ATF_TP_ADD_TC(tp, kill_pgrp_neg); + ATF_TP_ADD_TC(tp, kill_pgrp_zero); + + return atf_no_error(); +} |
