1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23*0Sstevel@tonic-gate /* All Rights Reserved */
24*0Sstevel@tonic-gate
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * Copyright (c) 1997, by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate * All rights reserved.
29*0Sstevel@tonic-gate */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
32*0Sstevel@tonic-gate /*LINTLIBRARY*/
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate /*
35*0Sstevel@tonic-gate * listdgrp.c
36*0Sstevel@tonic-gate *
37*0Sstevel@tonic-gate * Contents:
38*0Sstevel@tonic-gate * listdgrp() List devices that belong to a device group.
39*0Sstevel@tonic-gate */
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate /*
42*0Sstevel@tonic-gate * Header files referenced:
43*0Sstevel@tonic-gate * <sys/types.h> System Data Types
44*0Sstevel@tonic-gate * <errno.h> UNIX and C error definitions
45*0Sstevel@tonic-gate * <string.h> String handling definitions
46*0Sstevel@tonic-gate * <devmgmt.h> Device management definitions
47*0Sstevel@tonic-gate * "devtab.h" Local device table definitions
48*0Sstevel@tonic-gate */
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate #include <sys/types.h>
51*0Sstevel@tonic-gate #include <errno.h>
52*0Sstevel@tonic-gate #include <string.h>
53*0Sstevel@tonic-gate #include <stdlib.h>
54*0Sstevel@tonic-gate #include <devmgmt.h>
55*0Sstevel@tonic-gate #include "devtab.h"
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate /*
58*0Sstevel@tonic-gate * Local definitions
59*0Sstevel@tonic-gate */
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate /*
63*0Sstevel@tonic-gate * Structure definitions:
64*0Sstevel@tonic-gate */
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate /*
67*0Sstevel@tonic-gate * Local functions referenced
68*0Sstevel@tonic-gate */
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate /*
71*0Sstevel@tonic-gate * Global Data
72*0Sstevel@tonic-gate */
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate /*
75*0Sstevel@tonic-gate * Static Data
76*0Sstevel@tonic-gate */
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate /*
79*0Sstevel@tonic-gate * char **listdgrp(dgroup)
80*0Sstevel@tonic-gate * char *dgroup
81*0Sstevel@tonic-gate *
82*0Sstevel@tonic-gate * List the members of a device group.
83*0Sstevel@tonic-gate *
84*0Sstevel@tonic-gate * Arguments:
85*0Sstevel@tonic-gate * char *dgroup The device group needed
86*0Sstevel@tonic-gate *
87*0Sstevel@tonic-gate * Returns: char **
88*0Sstevel@tonic-gate * A pointer to a list of pointers to char-strings containing
89*0Sstevel@tonic-gate * the members of the device group.
90*0Sstevel@tonic-gate *
91*0Sstevel@tonic-gate * Notes:
92*0Sstevel@tonic-gate * - malloc()ed space containing addresses
93*0Sstevel@tonic-gate */
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate char **
listdgrp(char * dgroup)96*0Sstevel@tonic-gate listdgrp(char *dgroup) /* The device group to list */
97*0Sstevel@tonic-gate {
98*0Sstevel@tonic-gate /* Automatic data */
99*0Sstevel@tonic-gate struct dgrptabent *dgrpent; /* Device group description */
100*0Sstevel@tonic-gate struct member *member; /* Device group member */
101*0Sstevel@tonic-gate char **listbuf; /* Buffer allocated for addrs */
102*0Sstevel@tonic-gate char **rtnval; /* Value to return */
103*0Sstevel@tonic-gate char **pp; /* Running ptr through addrs */
104*0Sstevel@tonic-gate int noerror; /* Flag, TRUE if all's well */
105*0Sstevel@tonic-gate int n; /* Counter */
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate /*
109*0Sstevel@tonic-gate * Initializations
110*0Sstevel@tonic-gate */
111*0Sstevel@tonic-gate
112*0Sstevel@tonic-gate /*
113*0Sstevel@tonic-gate * Get the record for this device group
114*0Sstevel@tonic-gate */
115*0Sstevel@tonic-gate
116*0Sstevel@tonic-gate if (dgrpent = _getdgrprec(dgroup)) {
117*0Sstevel@tonic-gate
118*0Sstevel@tonic-gate /* Count the number of members in the device group */
119*0Sstevel@tonic-gate n = 1;
120*0Sstevel@tonic-gate for (member = dgrpent->membership; member; member = member->next)
121*0Sstevel@tonic-gate n++;
122*0Sstevel@tonic-gate
123*0Sstevel@tonic-gate /* Get space for the list to return */
124*0Sstevel@tonic-gate if (listbuf = malloc(n*sizeof (char **))) {
125*0Sstevel@tonic-gate
126*0Sstevel@tonic-gate /*
127*0Sstevel@tonic-gate * For each member in the device group, add that device
128*0Sstevel@tonic-gate * name to the list of devices we're building
129*0Sstevel@tonic-gate */
130*0Sstevel@tonic-gate
131*0Sstevel@tonic-gate pp = listbuf;
132*0Sstevel@tonic-gate noerror = TRUE;
133*0Sstevel@tonic-gate for (member = dgrpent->membership; noerror && member;
134*0Sstevel@tonic-gate member = member->next) {
135*0Sstevel@tonic-gate
136*0Sstevel@tonic-gate if (*pp = malloc(strlen(member->name)+1))
137*0Sstevel@tonic-gate
138*0Sstevel@tonic-gate (void) strcpy(*pp++, member->name);
139*0Sstevel@tonic-gate else noerror = FALSE;
140*0Sstevel@tonic-gate }
141*0Sstevel@tonic-gate
142*0Sstevel@tonic-gate
143*0Sstevel@tonic-gate /*
144*0Sstevel@tonic-gate * If there's no error, terminate the list we've built.
145*0Sstevel@tonic-gate * Otherwise, free the space allocated to the stuff we've built
146*0Sstevel@tonic-gate */
147*0Sstevel@tonic-gate
148*0Sstevel@tonic-gate if (noerror) {
149*0Sstevel@tonic-gate *pp = NULL;
150*0Sstevel@tonic-gate rtnval = listbuf;
151*0Sstevel@tonic-gate } else {
152*0Sstevel@tonic-gate /* Some error occurred. Clean up allocations */
153*0Sstevel@tonic-gate for (pp = listbuf; *pp; pp++) free(*pp);
154*0Sstevel@tonic-gate free(listbuf);
155*0Sstevel@tonic-gate rtnval = NULL;
156*0Sstevel@tonic-gate }
157*0Sstevel@tonic-gate
158*0Sstevel@tonic-gate } /* if (malloc()) */
159*0Sstevel@tonic-gate
160*0Sstevel@tonic-gate /* Free space alloced to the device group entry */
161*0Sstevel@tonic-gate _freedgrptabent(dgrpent);
162*0Sstevel@tonic-gate
163*0Sstevel@tonic-gate } /* if (_getdgrprec()) */
164*0Sstevel@tonic-gate else rtnval = NULL;
165*0Sstevel@tonic-gate
166*0Sstevel@tonic-gate
167*0Sstevel@tonic-gate /* Finished -- wasn't that simple? */
168*0Sstevel@tonic-gate return (rtnval);
169*0Sstevel@tonic-gate }
170