1 /* $NetBSD: t_wait.c,v 1.10 2021/07/17 14:03:35 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_wait.c,v 1.10 2021/07/17 14:03:35 martin Exp $");
33
34 #include <sys/wait.h>
35 #include <sys/resource.h>
36
37 #include <errno.h>
38 #include <inttypes.h>
39 #include <limits.h>
40 #include <pwd.h>
41 #include <signal.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <unistd.h>
45
46 #include <atf-c.h>
47
48 ATF_TC(wait6_invalid);
ATF_TC_HEAD(wait6_invalid,tc)49 ATF_TC_HEAD(wait6_invalid, tc)
50 {
51 atf_tc_set_md_var(tc, "descr",
52 "Test that wait6(2) returns EINVAL with 0 options");
53 }
54
ATF_TC_BODY(wait6_invalid,tc)55 ATF_TC_BODY(wait6_invalid, tc)
56 {
57 siginfo_t si;
58 struct wrusage wru;
59 int st;
60 ATF_REQUIRE(wait6(P_ALL, 0, &st, 0, &wru, &si) == -1
61 && errno == EINVAL);
62 }
63
64 ATF_TC(wait6_exited);
ATF_TC_HEAD(wait6_exited,tc)65 ATF_TC_HEAD(wait6_exited, tc)
66 {
67 atf_tc_set_md_var(tc, "descr",
68 "Test that wait6(2) handled exiting process and code");
69 }
70
ATF_TC_BODY(wait6_exited,tc)71 ATF_TC_BODY(wait6_exited, tc)
72 {
73 siginfo_t si;
74 struct wrusage wru;
75 int st;
76 pid_t pid;
77
78 switch (pid = fork()) {
79 case 0:
80 exit(0x5a5a5a5a);
81 /*NOTREACHED*/
82 case -1:
83 ATF_REQUIRE(pid > 0);
84 __unreachable();
85 default:
86 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid);
87 ATF_REQUIRE(WIFEXITED(st) && WEXITSTATUS(st) == 0x5a);
88 ATF_REQUIRE(si.si_status == 0x5a5a5a5a);
89 ATF_REQUIRE(si.si_pid == pid);
90 ATF_REQUIRE(si.si_uid == getuid());
91 ATF_REQUIRE(si.si_code == CLD_EXITED);
92 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
93 (uintmax_t)si.si_utime);
94 break;
95 }
96 }
97
98 ATF_TC(wait6_terminated);
ATF_TC_HEAD(wait6_terminated,tc)99 ATF_TC_HEAD(wait6_terminated, tc)
100 {
101 atf_tc_set_md_var(tc, "descr",
102 "Test that wait6(2) handled terminated process and code");
103 }
104
ATF_TC_BODY(wait6_terminated,tc)105 ATF_TC_BODY(wait6_terminated, tc)
106 {
107 siginfo_t si;
108 struct wrusage wru;
109 int st;
110 pid_t pid;
111
112 switch (pid = fork()) {
113 case 0:
114 sleep(100);
115 /*FALLTHROUGH*/
116 case -1:
117 ATF_REQUIRE(pid > 0);
118 __unreachable();
119 default:
120 ATF_REQUIRE(kill(pid, SIGTERM) == 0);
121 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid);
122 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGTERM);
123 ATF_REQUIRE(si.si_status == SIGTERM);
124 ATF_REQUIRE(si.si_pid == pid);
125 ATF_REQUIRE(si.si_uid == getuid());
126 ATF_REQUIRE(si.si_code == CLD_KILLED);
127 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
128 (uintmax_t)si.si_utime);
129 break;
130 }
131 }
132
133 ATF_TC(wait6_coredumped);
ATF_TC_HEAD(wait6_coredumped,tc)134 ATF_TC_HEAD(wait6_coredumped, tc)
135 {
136 atf_tc_set_md_var(tc, "descr",
137 "Test that wait6(2) handled coredumped process and code");
138 }
139
ATF_TC_BODY(wait6_coredumped,tc)140 ATF_TC_BODY(wait6_coredumped, tc)
141 {
142 siginfo_t si;
143 struct wrusage wru;
144 int st;
145 pid_t pid;
146 static const struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY };
147
148 switch (pid = fork()) {
149 case 0:
150 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0);
151 *(char *)8 = 0;
152 /*FALLTHROUGH*/
153 case -1:
154 ATF_REQUIRE(pid > 0);
155 __unreachable();
156 default:
157 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid);
158 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGSEGV
159 && WCOREDUMP(st));
160 ATF_REQUIRE(si.si_status == SIGSEGV);
161 ATF_REQUIRE(si.si_pid == pid);
162 ATF_REQUIRE(si.si_uid == getuid());
163 ATF_REQUIRE(si.si_code == CLD_DUMPED);
164 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
165 (uintmax_t)si.si_utime);
166 break;
167 }
168 }
169
170 ATF_TC(wait6_stop_and_go);
ATF_TC_HEAD(wait6_stop_and_go,tc)171 ATF_TC_HEAD(wait6_stop_and_go, tc)
172 {
173 atf_tc_set_md_var(tc, "descr",
174 "Test that wait6(2) handled stopped/continued process and code");
175 }
176
ATF_TC_BODY(wait6_stop_and_go,tc)177 ATF_TC_BODY(wait6_stop_and_go, tc)
178 {
179 siginfo_t si;
180 struct wrusage wru;
181 int st;
182 pid_t pid;
183 static const struct rlimit rl = { 0, 0 };
184
185 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0);
186 switch (pid = fork()) {
187 case 0:
188 sleep(100);
189 /*FALLTHROUGH*/
190 case -1:
191 ATF_REQUIRE(pid > 0);
192 __unreachable();
193 default:
194 ATF_REQUIRE(kill(pid, SIGSTOP) == 0);
195 ATF_REQUIRE(wait6(P_PID, pid, &st, WSTOPPED, &wru, &si) == pid);
196 ATF_REQUIRE(!WIFEXITED(st));
197 ATF_REQUIRE(!WIFSIGNALED(st));
198 ATF_REQUIRE(WIFSTOPPED(st) && WSTOPSIG(st) == SIGSTOP);
199 ATF_REQUIRE(!WIFCONTINUED(st));
200 ATF_REQUIRE(si.si_status == SIGSTOP);
201 ATF_REQUIRE(si.si_pid == pid);
202 ATF_REQUIRE(si.si_uid == getuid());
203 ATF_REQUIRE(si.si_code == CLD_STOPPED);
204 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
205 (uintmax_t)si.si_utime);
206
207 ATF_REQUIRE(kill(pid, SIGCONT) == 0);
208 ATF_REQUIRE(wait6(P_PID, pid, &st, WCONTINUED, &wru, &si) == pid);
209 ATF_REQUIRE(!WIFEXITED(st));
210 ATF_REQUIRE(!WIFSIGNALED(st));
211 ATF_REQUIRE(WIFCONTINUED(st));
212 ATF_REQUIRE(!WIFSTOPPED(st));
213 ATF_REQUIRE(si.si_status == SIGCONT);
214 ATF_REQUIRE(si.si_pid == pid);
215 ATF_REQUIRE(si.si_uid == getuid());
216 ATF_REQUIRE(si.si_code == CLD_CONTINUED);
217 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
218 (uintmax_t)si.si_utime);
219
220 ATF_REQUIRE(kill(pid, SIGQUIT) == 0);
221 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid);
222 ATF_REQUIRE(!WIFEXITED(st));
223 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGQUIT);
224 ATF_REQUIRE(!WIFSTOPPED(st));
225 ATF_REQUIRE(!WIFCONTINUED(st));
226 ATF_REQUIRE(si.si_status == SIGQUIT);
227 ATF_REQUIRE(si.si_pid == pid);
228 ATF_REQUIRE(si.si_uid == getuid());
229 ATF_REQUIRE(si.si_code == CLD_KILLED);
230 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
231 (uintmax_t)si.si_utime);
232 break;
233 }
234 }
235
236 ATF_TC(wait6_stopgo_loop);
ATF_TC_HEAD(wait6_stopgo_loop,tc)237 ATF_TC_HEAD(wait6_stopgo_loop, tc)
238 {
239 atf_tc_set_md_var(tc, "descr",
240 "Test that wait6(2) handled stopped/continued process loop");
241 }
242
ATF_TC_BODY(wait6_stopgo_loop,tc)243 ATF_TC_BODY(wait6_stopgo_loop, tc)
244 {
245 siginfo_t si;
246 struct wrusage wru;
247 int st;
248 pid_t pid;
249 static const struct rlimit rl = { 0, 0 };
250 size_t N = 100;
251
252 ATF_REQUIRE(setrlimit(RLIMIT_CORE, &rl) == 0);
253 switch (pid = fork()) {
254 case 0:
255 sleep(100);
256 /*FALLTHROUGH*/
257 case -1:
258 ATF_REQUIRE(pid > 0);
259 __unreachable();
260 }
261
262 printf("Before loop of SIGSTOP/SIGCONT sequence %zu times\n", N);
263 while (N --> 0) {
264 ATF_REQUIRE(kill(pid, SIGSTOP) == 0);
265 ATF_REQUIRE(wait6(P_PID, pid, &st, WSTOPPED, &wru, &si) == pid);
266 ATF_REQUIRE(!WIFEXITED(st));
267 ATF_REQUIRE(!WIFSIGNALED(st));
268 ATF_REQUIRE(WIFSTOPPED(st) && WSTOPSIG(st) == SIGSTOP);
269 ATF_REQUIRE(!WIFCONTINUED(st));
270 ATF_REQUIRE(si.si_status == SIGSTOP);
271 ATF_REQUIRE(si.si_pid == pid);
272 ATF_REQUIRE(si.si_uid == getuid());
273 ATF_REQUIRE(si.si_code == CLD_STOPPED);
274
275 ATF_REQUIRE(kill(pid, SIGCONT) == 0);
276 ATF_REQUIRE(wait6(P_PID, pid, &st, WCONTINUED, &wru, &si) == pid);
277 ATF_REQUIRE(!WIFEXITED(st));
278 ATF_REQUIRE(!WIFSIGNALED(st));
279 ATF_REQUIRE(WIFCONTINUED(st));
280 ATF_REQUIRE(!WIFSTOPPED(st));
281 ATF_REQUIRE(si.si_status == SIGCONT);
282 ATF_REQUIRE(si.si_pid == pid);
283 ATF_REQUIRE(si.si_uid == getuid());
284 ATF_REQUIRE(si.si_code == CLD_CONTINUED);
285 }
286 ATF_REQUIRE(kill(pid, SIGQUIT) == 0);
287 ATF_REQUIRE(wait6(P_PID, pid, &st, WEXITED, &wru, &si) == pid);
288 ATF_REQUIRE(!WIFEXITED(st));
289 ATF_REQUIRE(WIFSIGNALED(st) && WTERMSIG(st) == SIGQUIT);
290 ATF_REQUIRE(!WIFSTOPPED(st));
291 ATF_REQUIRE(!WIFCONTINUED(st));
292 ATF_REQUIRE(si.si_status == SIGQUIT);
293 ATF_REQUIRE(si.si_pid == pid);
294 ATF_REQUIRE(si.si_uid == getuid());
295 ATF_REQUIRE(si.si_code == CLD_KILLED);
296 printf("user: %ju system: %ju\n", (uintmax_t)si.si_utime,
297 (uintmax_t)si.si_utime);
298 }
299
ATF_TP_ADD_TCS(tp)300 ATF_TP_ADD_TCS(tp)
301 {
302
303 ATF_TP_ADD_TC(tp, wait6_invalid);
304 ATF_TP_ADD_TC(tp, wait6_exited);
305 ATF_TP_ADD_TC(tp, wait6_terminated);
306 ATF_TP_ADD_TC(tp, wait6_coredumped);
307 ATF_TP_ADD_TC(tp, wait6_stop_and_go);
308 ATF_TP_ADD_TC(tp, wait6_stopgo_loop);
309
310 return atf_no_error();
311 }
312