1 /* $NetBSD: netbsd32_wait.c,v 1.6 2003/02/14 10:19:14 dsl 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_wait.c,v 1.6 2003/02/14 10:19:14 dsl Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/mount.h> 37 #include <sys/time.h> 38 #include <sys/wait.h> 39 #include <sys/ptrace.h> 40 #include <sys/resourcevar.h> 41 #include <sys/vnode.h> 42 #include <sys/pool.h> 43 #include <sys/proc.h> 44 45 #include <compat/netbsd32/netbsd32.h> 46 #include <compat/netbsd32/netbsd32_syscallargs.h> 47 #include <compat/netbsd32/netbsd32_conv.h> 48 49 int 50 netbsd32_wait4(l, v, retval) 51 struct lwp *l; 52 void *v; 53 register_t *retval; 54 { 55 struct netbsd32_wait4_args /* { 56 syscallarg(int) pid; 57 syscallarg(netbsd32_intp) status; 58 syscallarg(int) options; 59 syscallarg(netbsd32_rusagep_t) rusage; 60 } */ *uap = v; 61 struct proc *parent = l->l_proc; 62 struct netbsd32_rusage ru32; 63 struct proc *child; 64 int status, error; 65 66 if (SCARG(uap, pid) == 0) 67 SCARG(uap, pid) = -parent->p_pgid; 68 if (SCARG(uap, options) &~ (WUNTRACED|WNOHANG)) 69 return (EINVAL); 70 71 error = find_stopped_child(parent, SCARG(uap,pid), SCARG(uap,options), 72 &child); 73 if (error != 0) 74 return error; 75 if (child == NULL) { 76 retval[0] = 0; 77 return 0; 78 } 79 80 retval[0] = child->p_pid; 81 if (child->p_stat == SZOMB) { 82 if (SCARG(uap, status)) { 83 status = child->p_xstat; /* convert to int */ 84 error = copyout((caddr_t)&status, 85 (caddr_t)NETBSD32PTR64(SCARG(uap, status)), 86 sizeof(status)); 87 if (error) 88 return error; 89 } 90 if (SCARG(uap, rusage)) { 91 netbsd32_from_rusage(child->p_ru, &ru32); 92 error = copyout((caddr_t)&ru32, 93 (caddr_t)NETBSD32PTR64(SCARG(uap, rusage)), 94 sizeof(struct netbsd32_rusage)); 95 if (error) 96 return error; 97 } 98 proc_free(child); 99 return 0; 100 } 101 102 if (SCARG(uap, status)) { 103 status = W_STOPCODE(child->p_xstat); 104 return copyout((caddr_t)&status, 105 (caddr_t)NETBSD32PTR64(SCARG(uap, status)), 106 sizeof(status)); 107 } 108 return 0; 109 } 110 111 int 112 netbsd32_getrusage(l, v, retval) 113 struct lwp *l; 114 void *v; 115 register_t *retval; 116 { 117 struct netbsd32_getrusage_args /* { 118 syscallarg(int) who; 119 syscallarg(netbsd32_rusagep_t) rusage; 120 } */ *uap = v; 121 struct proc *p = l->l_proc; 122 struct rusage *rup; 123 struct netbsd32_rusage ru; 124 125 switch (SCARG(uap, who)) { 126 127 case RUSAGE_SELF: 128 rup = &p->p_stats->p_ru; 129 calcru(p, &rup->ru_utime, &rup->ru_stime, NULL); 130 break; 131 132 case RUSAGE_CHILDREN: 133 rup = &p->p_stats->p_cru; 134 break; 135 136 default: 137 return (EINVAL); 138 } 139 netbsd32_from_rusage(rup, &ru); 140 return (copyout(&ru, (caddr_t)NETBSD32PTR64(SCARG(uap, rusage)), 141 sizeof(ru))); 142 } 143