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 #include <stdlib.h>
28 #include <unistd.h>
29 #include <errno.h>
30 #include <door.h>
31 #include "libproc.h"
32
33 /*
34 * door() system calls -- executed by subject process
35 */
36
37 int
pr_door_info(struct ps_prochandle * Pr,int did,door_info_t * di)38 pr_door_info(struct ps_prochandle *Pr, int did, door_info_t *di)
39 {
40 sysret_t rval; /* return value from door_info() */
41 argdes_t argd[6]; /* arg descriptors for door_info() */
42 argdes_t *adp = &argd[0]; /* first argument */
43 int error;
44
45 if (Pr == NULL) /* no subject process */
46 return (door_info(did, di));
47
48 adp->arg_value = did;
49 adp->arg_object = NULL;
50 adp->arg_type = AT_BYVAL;
51 adp->arg_inout = AI_INPUT;
52 adp->arg_size = 0;
53 adp++; /* move to door_info_t argument */
54
55 adp->arg_value = 0;
56 adp->arg_object = di;
57 adp->arg_type = AT_BYREF;
58 adp->arg_inout = AI_OUTPUT;
59 adp->arg_size = sizeof (door_info_t);
60 adp++; /* move to unused argument */
61
62 adp->arg_value = 0;
63 adp->arg_object = NULL;
64 adp->arg_type = AT_BYVAL;
65 adp->arg_inout = AI_INPUT;
66 adp->arg_size = 0;
67 adp++; /* move to unused argument */
68
69 adp->arg_value = 0;
70 adp->arg_object = NULL;
71 adp->arg_type = AT_BYVAL;
72 adp->arg_inout = AI_INPUT;
73 adp->arg_size = 0;
74 adp++; /* move to unused argument */
75
76 adp->arg_value = 0;
77 adp->arg_object = NULL;
78 adp->arg_type = AT_BYVAL;
79 adp->arg_inout = AI_INPUT;
80 adp->arg_size = 0;
81 adp++; /* move to subcode argument */
82
83 adp->arg_value = DOOR_INFO;
84 adp->arg_object = NULL;
85 adp->arg_type = AT_BYVAL;
86 adp->arg_inout = AI_INPUT;
87 adp->arg_size = 0;
88
89 error = Psyscall(Pr, &rval, SYS_door, 6, &argd[0]);
90
91 if (error) {
92 errno = (error < 0)? ENOSYS : error;
93 return (-1);
94 }
95 return (0);
96 }
97