/* * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)waitpid.c 8.1 (Berkeley) 6/4/93"; #endif /* LIBC_SCCS and not lint */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: src/lib/libc/gen/waitpid.c,v 1.6 2002/02/01 00:57:29 obrien Exp $"); #include "namespace.h" #include <sys/types.h> #include <sys/time.h> #include <sys/wait.h> #include <sys/resource.h> #include "un-namespace.h" #if __DARWIN_UNIX03 #include <errno.h> #endif /* __DARWIN_UNIX03 */ #ifdef VARIANT_CANCELABLE int __wait4(pid_t, int *, int , struct rusage *); #else /* !VARIANT_CANCELABLE */ int __wait4_nocancel(pid_t, int *, int , struct rusage *); #endif /* VARIANT_CANCELABLE */ pid_t __waitpid(pid_t pid, int *istat, int options) { #if __DARWIN_UNIX03 /* POSIX: Validate waitpid() options before calling wait4() */ if ((options & (WCONTINUED | WNOHANG | WUNTRACED)) != options) { errno = EINVAL; return ((pid_t)-1); } #endif /* __DARWIN_UNIX03 */ #ifdef VARIANT_CANCELABLE return (__wait4(pid, istat, options, (struct rusage *)0)); #else /* !VARIANT_CANCELABLE */ return (__wait4_nocancel(pid, istat, options, (struct rusage *)0)); #endif /* VARIANT_CANCELABLE */ } __weak_reference(__waitpid, waitpid); __weak_reference(__waitpid, _waitpid);