1 /* $NetBSD: netbsd32_wait.c,v 1.23 2016/09/23 14:09:39 skrll 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 1.23 2016/09/23 14:09:39 skrll 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 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, rusage)) { 70 netbsd32_from_rusage(&ru, &ru32); 71 error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); 72 } 73 74 if (error == 0 && SCARG_P32(uap, status)) 75 error = copyout(&status, SCARG_P32(uap, status), sizeof(status)); 76 77 return error; 78 } 79 80 int 81 netbsd32_wait6(struct lwp *l, const struct netbsd32_wait6_args *uap, 82 register_t *retval) 83 { 84 /* { 85 syscallarg(idtype_t) idtype; 86 syscallarg(id_t) id; 87 syscallarg(netbsd32_intp) status; 88 syscallarg(int) options; 89 syscallarg(netbsd32_wrusagep_t) wru; 90 syscallarg(netbsd32_siginfop_t) info; 91 } */ 92 idtype_t idtype = SCARG(uap, idtype); 93 id_t id = SCARG(uap, id); 94 struct wrusage wru, *wrup; 95 siginfo_t si, *sip; 96 int status; 97 int pid; 98 99 if (SCARG_P32(uap, wru) != NULL) 100 wrup = &wru; 101 else 102 wrup = NULL; 103 104 if (SCARG_P32(uap, info) != NULL) 105 sip = &si; 106 else 107 sip = NULL; 108 109 /* 110 * We expect all callers of wait6() to know about WEXITED and 111 * WTRAPPED. 112 */ 113 int error = do_sys_waitid(idtype, id, &pid, &status, 114 SCARG(uap, options), wrup, sip); 115 116 retval[0] = pid; /* tell userland who it was */ 117 118 #if 0 119 /* 120 * should we copyout if there was no process, hence no useful data? 121 * We don't for an old sytle wait4() (etc) but I believe 122 * FreeBSD does for wait6(), so a tossup... Go with FreeBSD for now. 123 */ 124 if (pid == 0) 125 return error; 126 #endif 127 128 129 if (error == 0 && SCARG_P32(uap, status)) 130 error = copyout(&status, SCARG_P32(uap, status), 131 sizeof(status)); 132 if (wrup != NULL && error == 0) { 133 struct netbsd32_wrusage wru32; 134 135 netbsd32_from_rusage(&wrup->wru_self, &wru32.wru_self); 136 netbsd32_from_rusage(&wrup->wru_children, &wru32.wru_children); 137 error = copyout(&wru32, SCARG_P32(uap, wru), sizeof(wru32)); 138 } 139 if (sip != NULL && error == 0) { 140 siginfo32_t si32; 141 142 netbsd32_si_to_si32(&si32, sip); 143 error = copyout(&si32, SCARG_P32(uap, info), sizeof(si32)); 144 } 145 146 return error; 147 } 148 149 int 150 netbsd32___getrusage50(struct lwp *l, 151 const struct netbsd32___getrusage50_args *uap, register_t *retval) 152 { 153 /* { 154 syscallarg(int) who; 155 syscallarg(netbsd32_rusagep_t) rusage; 156 } */ 157 int error; 158 struct proc *p = l->l_proc; 159 struct rusage ru; 160 struct netbsd32_rusage ru32; 161 162 error = getrusage1(p, SCARG(uap, who), &ru); 163 if (error != 0) 164 return error; 165 166 netbsd32_from_rusage(&ru, &ru32); 167 return copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32)); 168 } 169