xref: /illumos-gate/usr/src/lib/libc/port/gen/waitpid.c (revision 7c478bd9)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
30*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate #include "synonyms.h"
34*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
35*7c478bd9Sstevel@tonic-gate #include <unistd.h>
36*7c478bd9Sstevel@tonic-gate #include <wait.h>
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate pid_t
39*7c478bd9Sstevel@tonic-gate _waitpid(pid_t pid, int *stat_loc, int options)
40*7c478bd9Sstevel@tonic-gate {
41*7c478bd9Sstevel@tonic-gate 	idtype_t idtype;
42*7c478bd9Sstevel@tonic-gate 	id_t id;
43*7c478bd9Sstevel@tonic-gate 	siginfo_t info;
44*7c478bd9Sstevel@tonic-gate 	int error;
45*7c478bd9Sstevel@tonic-gate 
46*7c478bd9Sstevel@tonic-gate 	if (pid > 0) {
47*7c478bd9Sstevel@tonic-gate 		idtype = P_PID;
48*7c478bd9Sstevel@tonic-gate 		id = pid;
49*7c478bd9Sstevel@tonic-gate 	} else if (pid < -1) {
50*7c478bd9Sstevel@tonic-gate 		idtype = P_PGID;
51*7c478bd9Sstevel@tonic-gate 		id = -pid;
52*7c478bd9Sstevel@tonic-gate 	} else if (pid == -1) {
53*7c478bd9Sstevel@tonic-gate 		idtype = P_ALL;
54*7c478bd9Sstevel@tonic-gate 		id = 0;
55*7c478bd9Sstevel@tonic-gate 	} else {
56*7c478bd9Sstevel@tonic-gate 		idtype = P_PGID;
57*7c478bd9Sstevel@tonic-gate 		id = getpgid(0);
58*7c478bd9Sstevel@tonic-gate 	}
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate 	options |= (WEXITED|WTRAPPED);
61*7c478bd9Sstevel@tonic-gate 
62*7c478bd9Sstevel@tonic-gate 	if ((error = waitid(idtype, id, &info, options)) < 0)
63*7c478bd9Sstevel@tonic-gate 		return (error);
64*7c478bd9Sstevel@tonic-gate 
65*7c478bd9Sstevel@tonic-gate 	if (stat_loc) {
66*7c478bd9Sstevel@tonic-gate 
67*7c478bd9Sstevel@tonic-gate 		int stat = (info.si_status & 0377);
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate 		switch (info.si_code) {
70*7c478bd9Sstevel@tonic-gate 		case CLD_EXITED:
71*7c478bd9Sstevel@tonic-gate 			stat <<= 8;
72*7c478bd9Sstevel@tonic-gate 			break;
73*7c478bd9Sstevel@tonic-gate 		case CLD_DUMPED:
74*7c478bd9Sstevel@tonic-gate 			stat |= WCOREFLG;
75*7c478bd9Sstevel@tonic-gate 			break;
76*7c478bd9Sstevel@tonic-gate 		case CLD_KILLED:
77*7c478bd9Sstevel@tonic-gate 			break;
78*7c478bd9Sstevel@tonic-gate 		case CLD_TRAPPED:
79*7c478bd9Sstevel@tonic-gate 		case CLD_STOPPED:
80*7c478bd9Sstevel@tonic-gate 			stat <<= 8;
81*7c478bd9Sstevel@tonic-gate 			stat |= WSTOPFLG;
82*7c478bd9Sstevel@tonic-gate 			break;
83*7c478bd9Sstevel@tonic-gate 		case CLD_CONTINUED:
84*7c478bd9Sstevel@tonic-gate 			stat = WCONTFLG;
85*7c478bd9Sstevel@tonic-gate 			break;
86*7c478bd9Sstevel@tonic-gate 		}
87*7c478bd9Sstevel@tonic-gate 
88*7c478bd9Sstevel@tonic-gate 		*stat_loc = stat;
89*7c478bd9Sstevel@tonic-gate 	}
90*7c478bd9Sstevel@tonic-gate 
91*7c478bd9Sstevel@tonic-gate 	return (info.si_pid);
92*7c478bd9Sstevel@tonic-gate }
93*7c478bd9Sstevel@tonic-gate 
94*7c478bd9Sstevel@tonic-gate pid_t
95*7c478bd9Sstevel@tonic-gate _wait(int *stat_loc)
96*7c478bd9Sstevel@tonic-gate {
97*7c478bd9Sstevel@tonic-gate 	return (waitpid(-1, stat_loc, 0));
98*7c478bd9Sstevel@tonic-gate }
99