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 /*
30*7c478bd9Sstevel@tonic-gate  * Creates and maintains a short-term cache of live upgrade slices.
31*7c478bd9Sstevel@tonic-gate  */
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate #include <dirent.h>
34*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
35*7c478bd9Sstevel@tonic-gate #include <stdio.h>
36*7c478bd9Sstevel@tonic-gate #include <string.h>
37*7c478bd9Sstevel@tonic-gate #include <synch.h>
38*7c478bd9Sstevel@tonic-gate #include <sys/errno.h>
39*7c478bd9Sstevel@tonic-gate #include <sys/param.h>
40*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
41*7c478bd9Sstevel@tonic-gate #include <sys/stat.h>
42*7c478bd9Sstevel@tonic-gate #include <unistd.h>
43*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
44*7c478bd9Sstevel@tonic-gate #include <sys/wait.h>
45*7c478bd9Sstevel@tonic-gate 
46*7c478bd9Sstevel@tonic-gate #include "libdiskmgt.h"
47*7c478bd9Sstevel@tonic-gate #include "disks_private.h"
48*7c478bd9Sstevel@tonic-gate 
49*7c478bd9Sstevel@tonic-gate #define	TMPNM_SIZE	25
50*7c478bd9Sstevel@tonic-gate 
51*7c478bd9Sstevel@tonic-gate /*
52*7c478bd9Sstevel@tonic-gate  * The list of live upgrade slices in use.
53*7c478bd9Sstevel@tonic-gate  */
54*7c478bd9Sstevel@tonic-gate 
55*7c478bd9Sstevel@tonic-gate struct lu_list {
56*7c478bd9Sstevel@tonic-gate 	struct lu_list	*next;
57*7c478bd9Sstevel@tonic-gate 	char		*slice;
58*7c478bd9Sstevel@tonic-gate 	char		*name;
59*7c478bd9Sstevel@tonic-gate };
60*7c478bd9Sstevel@tonic-gate 
61*7c478bd9Sstevel@tonic-gate static struct lu_list	*lu_listp = NULL;
62*7c478bd9Sstevel@tonic-gate static time_t		timestamp = 0;
63*7c478bd9Sstevel@tonic-gate static mutex_t		lu_lock = DEFAULTMUTEX;
64*7c478bd9Sstevel@tonic-gate 
65*7c478bd9Sstevel@tonic-gate static int		add_use_record(char *devname, char *name);
66*7c478bd9Sstevel@tonic-gate static void		free_lu(struct lu_list *listp);
67*7c478bd9Sstevel@tonic-gate static int		load_lu();
68*7c478bd9Sstevel@tonic-gate static int		lustatus(int fd);
69*7c478bd9Sstevel@tonic-gate static int		lufslist(int fd);
70*7c478bd9Sstevel@tonic-gate static int		run_cmd(char *path, char *cmd, char *arg, int fd);
71*7c478bd9Sstevel@tonic-gate 
72*7c478bd9Sstevel@tonic-gate /*
73*7c478bd9Sstevel@tonic-gate  * Search the list of devices under live upgrade for the specified device.
74*7c478bd9Sstevel@tonic-gate  */
75*7c478bd9Sstevel@tonic-gate int
inuse_lu(char * slice,nvlist_t * attrs,int * errp)76*7c478bd9Sstevel@tonic-gate inuse_lu(char *slice, nvlist_t *attrs, int *errp)
77*7c478bd9Sstevel@tonic-gate {
78*7c478bd9Sstevel@tonic-gate 	int		found = 0;
79*7c478bd9Sstevel@tonic-gate 	time_t		curr_time;
80*7c478bd9Sstevel@tonic-gate 
81*7c478bd9Sstevel@tonic-gate 	*errp = 0;
82*7c478bd9Sstevel@tonic-gate 
83*7c478bd9Sstevel@tonic-gate 	if (slice == NULL) {
84*7c478bd9Sstevel@tonic-gate 	    return (found);
85*7c478bd9Sstevel@tonic-gate 	}
86*7c478bd9Sstevel@tonic-gate 
87*7c478bd9Sstevel@tonic-gate 	/*
88*7c478bd9Sstevel@tonic-gate 	 * We don't want to have to re-read the live upgrade config for
89*7c478bd9Sstevel@tonic-gate 	 * every slice, but we can't just cache it since there is no event
90*7c478bd9Sstevel@tonic-gate 	 * when this changes.  So, we'll keep the config in memory for
91*7c478bd9Sstevel@tonic-gate 	 * a short time (1 minute) before reloading it.
92*7c478bd9Sstevel@tonic-gate 	 */
93*7c478bd9Sstevel@tonic-gate 	(void) mutex_lock(&lu_lock);
94*7c478bd9Sstevel@tonic-gate 
95*7c478bd9Sstevel@tonic-gate 	curr_time = time(NULL);
96*7c478bd9Sstevel@tonic-gate 	if (timestamp < curr_time && (curr_time - timestamp) > 60) {
97*7c478bd9Sstevel@tonic-gate 	    free_lu(lu_listp);	/* free old entries */
98*7c478bd9Sstevel@tonic-gate 	    lu_listp = NULL;
99*7c478bd9Sstevel@tonic-gate 	    *errp = load_lu();	/* load the cache */
100*7c478bd9Sstevel@tonic-gate 	    timestamp = curr_time;
101*7c478bd9Sstevel@tonic-gate 	}
102*7c478bd9Sstevel@tonic-gate 
103*7c478bd9Sstevel@tonic-gate 	if (*errp == 0) {
104*7c478bd9Sstevel@tonic-gate 	    struct lu_list	*listp;
105*7c478bd9Sstevel@tonic-gate 
106*7c478bd9Sstevel@tonic-gate 	    listp = lu_listp;
107*7c478bd9Sstevel@tonic-gate 	    while (listp != NULL) {
108*7c478bd9Sstevel@tonic-gate 		if (strcmp(slice, listp->slice) == 0) {
109*7c478bd9Sstevel@tonic-gate 		    libdiskmgt_add_str(attrs, DM_USED_BY, DM_USE_LU, errp);
110*7c478bd9Sstevel@tonic-gate 		    libdiskmgt_add_str(attrs, DM_USED_NAME, listp->name, errp);
111*7c478bd9Sstevel@tonic-gate 		    found = 1;
112*7c478bd9Sstevel@tonic-gate 		    break;
113*7c478bd9Sstevel@tonic-gate 		}
114*7c478bd9Sstevel@tonic-gate 		listp = listp->next;
115*7c478bd9Sstevel@tonic-gate 	    }
116*7c478bd9Sstevel@tonic-gate 	}
117*7c478bd9Sstevel@tonic-gate 
118*7c478bd9Sstevel@tonic-gate 	(void) mutex_unlock(&lu_lock);
119*7c478bd9Sstevel@tonic-gate 
120*7c478bd9Sstevel@tonic-gate 	return (found);
121*7c478bd9Sstevel@tonic-gate }
122*7c478bd9Sstevel@tonic-gate 
123*7c478bd9Sstevel@tonic-gate static int
add_use_record(char * devname,char * name)124*7c478bd9Sstevel@tonic-gate add_use_record(char *devname, char *name)
125*7c478bd9Sstevel@tonic-gate {
126*7c478bd9Sstevel@tonic-gate 	struct lu_list *sp;
127*7c478bd9Sstevel@tonic-gate 
128*7c478bd9Sstevel@tonic-gate 	sp = (struct lu_list *)malloc(sizeof (struct lu_list));
129*7c478bd9Sstevel@tonic-gate 	if (sp == NULL) {
130*7c478bd9Sstevel@tonic-gate 	    return (ENOMEM);
131*7c478bd9Sstevel@tonic-gate 	}
132*7c478bd9Sstevel@tonic-gate 
133*7c478bd9Sstevel@tonic-gate 	if ((sp->slice = strdup(devname)) == NULL) {
134*7c478bd9Sstevel@tonic-gate 	    free(sp);
135*7c478bd9Sstevel@tonic-gate 	    return (ENOMEM);
136*7c478bd9Sstevel@tonic-gate 	}
137*7c478bd9Sstevel@tonic-gate 
138*7c478bd9Sstevel@tonic-gate 	if ((sp->name = strdup(name)) == NULL) {
139*7c478bd9Sstevel@tonic-gate 	    free(sp->slice);
140*7c478bd9Sstevel@tonic-gate 	    free(sp);
141*7c478bd9Sstevel@tonic-gate 	    return (ENOMEM);
142*7c478bd9Sstevel@tonic-gate 	}
143*7c478bd9Sstevel@tonic-gate 
144*7c478bd9Sstevel@tonic-gate 	sp->next = lu_listp;
145*7c478bd9Sstevel@tonic-gate 	lu_listp = sp;
146*7c478bd9Sstevel@tonic-gate 
147*7c478bd9Sstevel@tonic-gate 	return (0);
148*7c478bd9Sstevel@tonic-gate }
149*7c478bd9Sstevel@tonic-gate 
150*7c478bd9Sstevel@tonic-gate /*
151*7c478bd9Sstevel@tonic-gate  * Free the list of liveupgrade entries.
152*7c478bd9Sstevel@tonic-gate  */
153*7c478bd9Sstevel@tonic-gate static void
free_lu(struct lu_list * listp)154*7c478bd9Sstevel@tonic-gate free_lu(struct lu_list *listp) {
155*7c478bd9Sstevel@tonic-gate 
156*7c478bd9Sstevel@tonic-gate 	struct lu_list	*nextp;
157*7c478bd9Sstevel@tonic-gate 
158*7c478bd9Sstevel@tonic-gate 	while (listp != NULL) {
159*7c478bd9Sstevel@tonic-gate 	    nextp = listp->next;
160*7c478bd9Sstevel@tonic-gate 	    free((void *)listp->slice);
161*7c478bd9Sstevel@tonic-gate 	    free((void *)listp->name);
162*7c478bd9Sstevel@tonic-gate 	    free((void *)listp);
163*7c478bd9Sstevel@tonic-gate 	    listp = nextp;
164*7c478bd9Sstevel@tonic-gate 	}
165*7c478bd9Sstevel@tonic-gate }
166*7c478bd9Sstevel@tonic-gate 
167*7c478bd9Sstevel@tonic-gate /*
168*7c478bd9Sstevel@tonic-gate  * Create a list of live upgrade devices.
169*7c478bd9Sstevel@tonic-gate  */
170*7c478bd9Sstevel@tonic-gate static int
load_lu()171*7c478bd9Sstevel@tonic-gate load_lu()
172*7c478bd9Sstevel@tonic-gate {
173*7c478bd9Sstevel@tonic-gate 	char	tmpname[TMPNM_SIZE];
174*7c478bd9Sstevel@tonic-gate 	int	fd;
175*7c478bd9Sstevel@tonic-gate 	int	status = 0;
176*7c478bd9Sstevel@tonic-gate 
177*7c478bd9Sstevel@tonic-gate 	(void) strlcpy(tmpname, "/var/run/dm_lu_XXXXXX", TMPNM_SIZE);
178*7c478bd9Sstevel@tonic-gate 	if ((fd = mkstemp(tmpname)) != -1) {
179*7c478bd9Sstevel@tonic-gate 	    (void) unlink(tmpname);
180*7c478bd9Sstevel@tonic-gate 	    if (run_cmd("/usr/sbin/lustatus", "lustatus", NULL, fd)) {
181*7c478bd9Sstevel@tonic-gate 		status = lustatus(fd);
182*7c478bd9Sstevel@tonic-gate 	    } else {
183*7c478bd9Sstevel@tonic-gate 		(void) close(fd);
184*7c478bd9Sstevel@tonic-gate 	    }
185*7c478bd9Sstevel@tonic-gate 	}
186*7c478bd9Sstevel@tonic-gate 
187*7c478bd9Sstevel@tonic-gate 	return (status);
188*7c478bd9Sstevel@tonic-gate }
189*7c478bd9Sstevel@tonic-gate 
190*7c478bd9Sstevel@tonic-gate /*
191*7c478bd9Sstevel@tonic-gate  * The XML generated by the live upgrade commands is not parseable by the
192*7c478bd9Sstevel@tonic-gate  * standard Solaris XML parser, so we have to do it ourselves.
193*7c478bd9Sstevel@tonic-gate  */
194*7c478bd9Sstevel@tonic-gate static int
lufslist(int fd)195*7c478bd9Sstevel@tonic-gate lufslist(int fd)
196*7c478bd9Sstevel@tonic-gate {
197*7c478bd9Sstevel@tonic-gate 	FILE	*fp;
198*7c478bd9Sstevel@tonic-gate 	char	line[MAXPATHLEN];
199*7c478bd9Sstevel@tonic-gate 	int	status;
200*7c478bd9Sstevel@tonic-gate 
201*7c478bd9Sstevel@tonic-gate 	if ((fp = fdopen(fd, "r")) == NULL) {
202*7c478bd9Sstevel@tonic-gate 	    (void) close(fd);
203*7c478bd9Sstevel@tonic-gate 	    return (0);
204*7c478bd9Sstevel@tonic-gate 	}
205*7c478bd9Sstevel@tonic-gate 
206*7c478bd9Sstevel@tonic-gate 	(void) fseek(fp, 0L, SEEK_SET);
207*7c478bd9Sstevel@tonic-gate 	while (fgets(line, sizeof (line), fp) == line) {
208*7c478bd9Sstevel@tonic-gate 	    char *devp;
209*7c478bd9Sstevel@tonic-gate 	    char *nmp;
210*7c478bd9Sstevel@tonic-gate 	    char *ep;
211*7c478bd9Sstevel@tonic-gate 
212*7c478bd9Sstevel@tonic-gate 	    if (strncmp(line, "<beFsComponent ", 15) != 0) {
213*7c478bd9Sstevel@tonic-gate 		continue;
214*7c478bd9Sstevel@tonic-gate 	    }
215*7c478bd9Sstevel@tonic-gate 
216*7c478bd9Sstevel@tonic-gate 	    if ((devp = strstr(line, "fsDevice=\"")) == NULL) {
217*7c478bd9Sstevel@tonic-gate 		continue;
218*7c478bd9Sstevel@tonic-gate 	    }
219*7c478bd9Sstevel@tonic-gate 
220*7c478bd9Sstevel@tonic-gate 	    devp = devp + 10;
221*7c478bd9Sstevel@tonic-gate 
222*7c478bd9Sstevel@tonic-gate 	    if ((ep = strchr(devp, '"')) == NULL) {
223*7c478bd9Sstevel@tonic-gate 		continue;
224*7c478bd9Sstevel@tonic-gate 	    }
225*7c478bd9Sstevel@tonic-gate 
226*7c478bd9Sstevel@tonic-gate 	    *ep = 0;
227*7c478bd9Sstevel@tonic-gate 
228*7c478bd9Sstevel@tonic-gate 	    /* try to get the mountpoint name */
229*7c478bd9Sstevel@tonic-gate 	    if ((nmp = strstr(ep + 1, "mountPoint=\"")) != NULL) {
230*7c478bd9Sstevel@tonic-gate 		nmp = nmp + 12;
231*7c478bd9Sstevel@tonic-gate 
232*7c478bd9Sstevel@tonic-gate 		if ((ep = strchr(nmp, '"')) != NULL) {
233*7c478bd9Sstevel@tonic-gate 		    *ep = 0;
234*7c478bd9Sstevel@tonic-gate 		} else {
235*7c478bd9Sstevel@tonic-gate 		    nmp = "";
236*7c478bd9Sstevel@tonic-gate 		}
237*7c478bd9Sstevel@tonic-gate 
238*7c478bd9Sstevel@tonic-gate 	    } else {
239*7c478bd9Sstevel@tonic-gate 		nmp = "";
240*7c478bd9Sstevel@tonic-gate 	    }
241*7c478bd9Sstevel@tonic-gate 
242*7c478bd9Sstevel@tonic-gate 	    if ((status = add_use_record(devp, nmp)) != 0) {
243*7c478bd9Sstevel@tonic-gate 		break;
244*7c478bd9Sstevel@tonic-gate 	    }
245*7c478bd9Sstevel@tonic-gate 	}
246*7c478bd9Sstevel@tonic-gate 
247*7c478bd9Sstevel@tonic-gate 	(void) fclose(fp);
248*7c478bd9Sstevel@tonic-gate 
249*7c478bd9Sstevel@tonic-gate 	return (status);
250*7c478bd9Sstevel@tonic-gate }
251*7c478bd9Sstevel@tonic-gate 
252*7c478bd9Sstevel@tonic-gate static int
lustatus(int fd)253*7c478bd9Sstevel@tonic-gate lustatus(int fd)
254*7c478bd9Sstevel@tonic-gate {
255*7c478bd9Sstevel@tonic-gate 	FILE	*fp;
256*7c478bd9Sstevel@tonic-gate 	char	line[MAXPATHLEN];
257*7c478bd9Sstevel@tonic-gate 	int	status = 0;
258*7c478bd9Sstevel@tonic-gate 
259*7c478bd9Sstevel@tonic-gate 	if ((fp = fdopen(fd, "r")) == NULL) {
260*7c478bd9Sstevel@tonic-gate 	    (void) close(fd);
261*7c478bd9Sstevel@tonic-gate 	    return (0);
262*7c478bd9Sstevel@tonic-gate 	}
263*7c478bd9Sstevel@tonic-gate 
264*7c478bd9Sstevel@tonic-gate 	(void) fseek(fp, 0L, SEEK_SET);
265*7c478bd9Sstevel@tonic-gate 	while (fgets(line, sizeof (line), fp) == line) {
266*7c478bd9Sstevel@tonic-gate 	    char	*sp;
267*7c478bd9Sstevel@tonic-gate 	    char	*ep;
268*7c478bd9Sstevel@tonic-gate 	    char	tmpname[TMPNM_SIZE];
269*7c478bd9Sstevel@tonic-gate 	    int		ffd;
270*7c478bd9Sstevel@tonic-gate 
271*7c478bd9Sstevel@tonic-gate 	    if (strncmp(line, "<beStatus ", 10) != 0) {
272*7c478bd9Sstevel@tonic-gate 		continue;
273*7c478bd9Sstevel@tonic-gate 	    }
274*7c478bd9Sstevel@tonic-gate 
275*7c478bd9Sstevel@tonic-gate 	    if ((sp = strstr(line, "name=\"")) == NULL) {
276*7c478bd9Sstevel@tonic-gate 		continue;
277*7c478bd9Sstevel@tonic-gate 	    }
278*7c478bd9Sstevel@tonic-gate 
279*7c478bd9Sstevel@tonic-gate 	    sp = sp + 6;
280*7c478bd9Sstevel@tonic-gate 
281*7c478bd9Sstevel@tonic-gate 	    if ((ep = strchr(sp, '"')) == NULL) {
282*7c478bd9Sstevel@tonic-gate 		continue;
283*7c478bd9Sstevel@tonic-gate 	    }
284*7c478bd9Sstevel@tonic-gate 
285*7c478bd9Sstevel@tonic-gate 	    *ep = 0;
286*7c478bd9Sstevel@tonic-gate 
287*7c478bd9Sstevel@tonic-gate 	    (void) strlcpy(tmpname, "/var/run/dm_lu_XXXXXX", TMPNM_SIZE);
288*7c478bd9Sstevel@tonic-gate 	    if ((ffd = mkstemp(tmpname)) != -1) {
289*7c478bd9Sstevel@tonic-gate 		(void) unlink(tmpname);
290*7c478bd9Sstevel@tonic-gate 
291*7c478bd9Sstevel@tonic-gate 		if (run_cmd("/usr/sbin/lufslist", "lufslist", sp, ffd) == 0) {
292*7c478bd9Sstevel@tonic-gate 		    (void) close(ffd);
293*7c478bd9Sstevel@tonic-gate 		    break;
294*7c478bd9Sstevel@tonic-gate 		}
295*7c478bd9Sstevel@tonic-gate 
296*7c478bd9Sstevel@tonic-gate 		if ((status = lufslist(ffd)) != 0) {
297*7c478bd9Sstevel@tonic-gate 		    break;
298*7c478bd9Sstevel@tonic-gate 		}
299*7c478bd9Sstevel@tonic-gate 	    }
300*7c478bd9Sstevel@tonic-gate 	}
301*7c478bd9Sstevel@tonic-gate 
302*7c478bd9Sstevel@tonic-gate 	(void) fclose(fp);
303*7c478bd9Sstevel@tonic-gate 
304*7c478bd9Sstevel@tonic-gate 	return (status);
305*7c478bd9Sstevel@tonic-gate }
306*7c478bd9Sstevel@tonic-gate 
307*7c478bd9Sstevel@tonic-gate static int
run_cmd(char * path,char * cmd,char * arg,int fd)308*7c478bd9Sstevel@tonic-gate run_cmd(char *path, char *cmd, char *arg, int fd)
309*7c478bd9Sstevel@tonic-gate {
310*7c478bd9Sstevel@tonic-gate 	pid_t	pid;
311*7c478bd9Sstevel@tonic-gate 	int	loc;
312*7c478bd9Sstevel@tonic-gate 
313*7c478bd9Sstevel@tonic-gate 	/* create the server process */
314*7c478bd9Sstevel@tonic-gate 	switch ((pid = fork1())) {
315*7c478bd9Sstevel@tonic-gate 	case 0:
316*7c478bd9Sstevel@tonic-gate 	    /* child process */
317*7c478bd9Sstevel@tonic-gate 	    (void) close(1);
318*7c478bd9Sstevel@tonic-gate 	    (void) dup(fd);
319*7c478bd9Sstevel@tonic-gate 	    (void) close(2);
320*7c478bd9Sstevel@tonic-gate 	    (void) dup(fd);
321*7c478bd9Sstevel@tonic-gate 	    closefrom(3);
322*7c478bd9Sstevel@tonic-gate 	    (void) execl(path, cmd, "-X", arg, NULL);
323*7c478bd9Sstevel@tonic-gate 	    _exit(1);
324*7c478bd9Sstevel@tonic-gate 	    break;
325*7c478bd9Sstevel@tonic-gate 
326*7c478bd9Sstevel@tonic-gate 	case -1:
327*7c478bd9Sstevel@tonic-gate 	    return (0);
328*7c478bd9Sstevel@tonic-gate 
329*7c478bd9Sstevel@tonic-gate 	default:
330*7c478bd9Sstevel@tonic-gate 	    /* parent process */
331*7c478bd9Sstevel@tonic-gate 	    break;
332*7c478bd9Sstevel@tonic-gate 	}
333*7c478bd9Sstevel@tonic-gate 
334*7c478bd9Sstevel@tonic-gate 	(void) waitpid(pid, &loc, 0);
335*7c478bd9Sstevel@tonic-gate 
336*7c478bd9Sstevel@tonic-gate 	/* printf("got 0x%x %d %d\n", loc, WIFEXITED(loc), WEXITSTATUS(loc)); */
337*7c478bd9Sstevel@tonic-gate 
338*7c478bd9Sstevel@tonic-gate 	if (WIFEXITED(loc) && WEXITSTATUS(loc) == 0) {
339*7c478bd9Sstevel@tonic-gate 	    return (1);
340*7c478bd9Sstevel@tonic-gate 	}
341*7c478bd9Sstevel@tonic-gate 
342*7c478bd9Sstevel@tonic-gate 	return (0);
343*7c478bd9Sstevel@tonic-gate }
344