1 /* $NetBSD: compat_wait4.c,v 1.2 2009/01/11 02:46:27 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 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 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 __RCSID("$NetBSD: compat_wait4.c,v 1.2 2009/01/11 02:46:27 christos Exp $"); 35 #endif /* LIBC_SCCS and not lint */ 36 37 #define __LIBC12_SOURCE__ 38 39 #include "namespace.h" 40 #include <sys/types.h> 41 #include <sys/wait.h> 42 #include <compat/sys/wait.h> 43 #include <sys/resource.h> 44 #include <compat/sys/resource.h> 45 46 __warn_references(wait3, 47 "warning: reference to compatibility wait3(); include <sys/wait.h> to generate correct reference") 48 __warn_references(wait4, 49 "warning: reference to compatibility wait4(); include <sys/wait.h> to generate correct reference") 50 51 extern void __rusage_to_rusage50(const struct rusage *, struct rusage50 *); 52 53 #ifdef __weak_alias 54 __weak_alias(wait4, _wait4) 55 __weak_alias(_sys_wait4, _wait4) 56 __weak_alias(wait3, _wait3) 57 #endif 58 59 /* 60 * libc12 compatible wait4 routine. 61 */ 62 int 63 wait3(int *status, int options, struct rusage50 *ru50) 64 { 65 struct rusage ru; 66 int rv; 67 68 if ((rv = __wait350(status, options, ru50 ? &ru : NULL)) == -1) 69 return rv; 70 if (ru50) 71 __rusage_to_rusage50(&ru, ru50); 72 return rv; 73 } 74 75 int 76 wait4(pid_t wpid, int *status, int options, struct rusage50 *ru50) 77 { 78 struct rusage ru; 79 int rv; 80 81 if ((rv = __wait450(wpid, status, options, ru50 ? &ru : NULL)) == -1) 82 return rv; 83 if (ru50) 84 __rusage_to_rusage50(&ru, ru50); 85 return rv; 86 } 87