1 /* $NetBSD: netbsd32_wait.c,v 1.26 2021/12/05 08:13:12 msaitoh Exp $ */
2
3 /*
4 * Copyright (c) 1998, 2001 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are 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 the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * 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/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_wait.c,v 1.26 2021/12/05 08:13:12 msaitoh Exp $");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/mount.h>
35 #include <sys/time.h>
36 #include <sys/wait.h>
37 #include <sys/ptrace.h>
38 #include <sys/resourcevar.h>
39 #include <sys/vnode.h>
40 #include <sys/pool.h>
41 #include <sys/proc.h>
42 #include <sys/dirent.h>
43
44 #include <compat/netbsd32/netbsd32.h>
45 #include <compat/netbsd32/netbsd32_syscallargs.h>
46 #include <compat/netbsd32/netbsd32_conv.h>
47
48 int
netbsd32___wait450(struct lwp * l,const struct netbsd32___wait450_args * uap,register_t * retval)49 netbsd32___wait450(struct lwp *l, const struct netbsd32___wait450_args *uap,
50 register_t *retval)
51 {
52 /* {
53 syscallarg(int) pid;
54 syscallarg(netbsd32_intp) status;
55 syscallarg(int) options;
56 syscallarg(netbsd32_rusagep_t) rusage;
57 } */
58 int error, status, pid = SCARG(uap, pid);
59 struct netbsd32_rusage ru32;
60 struct rusage ru;
61
62 error = do_sys_wait(&pid, &status, SCARG(uap, options),
63 SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
64
65 retval[0] = pid;
66 if (pid == 0)
67 return error;
68
69 if (SCARG_P32(uap, status))
70 error = copyout(&status, SCARG_P32(uap, status),
71 sizeof(status));
72
73 if (SCARG_P32(uap, rusage) && error == 0) {
74 netbsd32_from_rusage(&ru, &ru32);
75 error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
76 }
77
78 return error;
79 }
80
81 int
netbsd32_wait6(struct lwp * l,const struct netbsd32_wait6_args * uap,register_t * retval)82 netbsd32_wait6(struct lwp *l, const struct netbsd32_wait6_args *uap,
83 register_t *retval)
84 {
85 /* {
86 syscallarg(idtype_t) idtype;
87 syscallarg(id_t) id;
88 syscallarg(netbsd32_intp) status;
89 syscallarg(int) options;
90 syscallarg(netbsd32_wrusagep_t) wru;
91 syscallarg(netbsd32_siginfop_t) info;
92 } */
93 idtype_t idtype = SCARG(uap, idtype);
94 id_t id = SCARG(uap, id);
95 struct wrusage wru, *wrup;
96 siginfo_t si, *sip;
97 int status;
98 int pid;
99
100 if (SCARG_P32(uap, wru) != NULL)
101 wrup = &wru;
102 else
103 wrup = NULL;
104
105 if (SCARG_P32(uap, info) != NULL)
106 sip = &si;
107 else
108 sip = NULL;
109
110 /*
111 * We expect all callers of wait6() to know about WEXITED and
112 * WTRAPPED.
113 */
114 int error = do_sys_waitid(idtype, id, &pid, &status,
115 SCARG(uap, options), wrup, sip);
116
117 retval[0] = pid; /* tell userland who it was */
118
119 #if 0
120 /*
121 * should we copyout if there was no process, hence no useful data?
122 * We don't for an old style wait4() (etc) but I believe
123 * FreeBSD does for wait6(), so a tossup... Go with FreeBSD for now.
124 */
125 if (pid == 0)
126 return error;
127 #endif
128
129
130 if (error == 0 && SCARG_P32(uap, status))
131 error = copyout(&status, SCARG_P32(uap, status),
132 sizeof(status));
133 if (wrup != NULL && error == 0) {
134 struct netbsd32_wrusage wru32;
135
136 memset(&wru32, 0, sizeof(wru32));
137 netbsd32_from_rusage(&wrup->wru_self, &wru32.wru_self);
138 netbsd32_from_rusage(&wrup->wru_children, &wru32.wru_children);
139 error = copyout(&wru32, SCARG_P32(uap, wru), sizeof(wru32));
140 }
141 if (sip != NULL && error == 0) {
142 siginfo32_t si32;
143
144 netbsd32_si_to_si32(&si32, sip);
145 error = copyout(&si32, SCARG_P32(uap, info), sizeof(si32));
146 }
147
148 return error;
149 }
150
151 int
netbsd32___getrusage50(struct lwp * l,const struct netbsd32___getrusage50_args * uap,register_t * retval)152 netbsd32___getrusage50(struct lwp *l,
153 const struct netbsd32___getrusage50_args *uap, register_t *retval)
154 {
155 /* {
156 syscallarg(int) who;
157 syscallarg(netbsd32_rusagep_t) rusage;
158 } */
159 int error;
160 struct proc *p = l->l_proc;
161 struct rusage ru;
162 struct netbsd32_rusage ru32;
163
164 error = getrusage1(p, SCARG(uap, who), &ru);
165 if (error != 0)
166 return error;
167
168 netbsd32_from_rusage(&ru, &ru32);
169 return copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
170 }
171