1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 #include "lint.h"
31 #include <sys/types.h>
32 #include <sys/procset.h>
33 #include <sys/priocntl.h>
34 #include <stdarg.h>
35 #include <errno.h>
36
37 /*
38 * The declarations of __priocntlset() and __priocntl() were in prior releases
39 * in <sys/priocntl.h>. They are used to define PC_VERSION at compile time,
40 * based on the contents of the header file. This behavior is now changed.
41 * Old binaries call __priocntl() and __priocntlset() instead of priocntl()
42 * and priocntlset(). New binaries call priocntl() and priocntlset().
43 */
44
45 /*
46 * defined in priocntlset.s
47 */
48 extern long __priocntlset(int, procset_t *, int, caddr_t, ...);
49
50 static int pc_vaargs2parms(va_list valist, pc_vaparms_t *vp);
51
52 long
__priocntl(int pc_version,idtype_t idtype,id_t id,int cmd,caddr_t arg)53 __priocntl(int pc_version, idtype_t idtype, id_t id, int cmd, caddr_t arg)
54 {
55 procset_t procset;
56
57 setprocset(&procset, POP_AND, idtype, id, P_ALL, 0);
58
59 return (__priocntlset(pc_version, &procset, cmd, arg, 0));
60 }
61
62
63 /*VARARGS3*/
64 long
priocntl(idtype_t idtype,id_t id,int cmd,...)65 priocntl(idtype_t idtype, id_t id, int cmd, ...)
66 {
67 procset_t procset;
68 va_list valist;
69 pc_vaparms_t varparms;
70 caddr_t arg;
71 int error;
72
73 setprocset(&procset, POP_AND, idtype, id, P_ALL, 0);
74
75 va_start(valist, cmd);
76 arg = va_arg(valist, caddr_t);
77
78 if (cmd != PC_GETXPARMS && cmd != PC_SETXPARMS) {
79 va_end(valist);
80 return (__priocntlset(PC_VERSION, &procset, cmd, arg, 0));
81 }
82
83 error = pc_vaargs2parms(valist, &varparms);
84 va_end(valist);
85
86 if (error) {
87 errno = error;
88 return (-1);
89 }
90
91 return (__priocntlset(PC_VERSION, &procset, cmd, arg, &varparms));
92 }
93
94
95 /*VARARGS2*/
96 long
priocntlset(procset_t * procsetp,int cmd,...)97 priocntlset(procset_t *procsetp, int cmd, ...)
98 {
99 va_list valist;
100 pc_vaparms_t varparms;
101 caddr_t arg;
102 int error;
103
104 va_start(valist, cmd);
105 arg = va_arg(valist, caddr_t);
106
107 if (cmd != PC_GETXPARMS && cmd != PC_SETXPARMS) {
108 va_end(valist);
109 return (__priocntlset(PC_VERSION, procsetp, cmd, arg, 0));
110 }
111
112 error = pc_vaargs2parms(valist, &varparms);
113 va_end(valist);
114
115 if (error) {
116 errno = error;
117 return (-1);
118 }
119
120 return (__priocntlset(PC_VERSION, procsetp, cmd, arg, &varparms));
121 }
122
123
124 static int
pc_vaargs2parms(va_list valist,pc_vaparms_t * vp)125 pc_vaargs2parms(va_list valist, pc_vaparms_t *vp)
126 {
127 pc_vaparm_t *vpp = &vp->pc_parms[0];
128 int key;
129
130 for (vp->pc_vaparmscnt = 0;
131 (key = va_arg(valist, int)) != PC_KY_NULL; vpp++) {
132 if (++vp->pc_vaparmscnt > PC_VAPARMCNT)
133 return (EINVAL);
134
135 vpp->pc_key = key;
136 vpp->pc_parm = va_arg(valist, uintptr_t);
137 }
138
139 return (0);
140 }
141