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 /*
23*0Sstevel@tonic-gate * Copyright (c) 1997-2000 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdlib.h>
30*0Sstevel@tonic-gate #include <unistd.h>
31*0Sstevel@tonic-gate #include <errno.h>
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate #include "libproc.h"
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * ioctl() system call -- executed by subject process.
37*0Sstevel@tonic-gate */
38*0Sstevel@tonic-gate int
pr_ioctl(struct ps_prochandle * Pr,int fd,int code,void * buf,size_t size)39*0Sstevel@tonic-gate pr_ioctl(struct ps_prochandle *Pr, int fd, int code, void *buf, size_t size)
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate sysret_t rval; /* return value from ioctl() */
42*0Sstevel@tonic-gate argdes_t argd[3]; /* arg descriptors for ioctl() */
43*0Sstevel@tonic-gate argdes_t *adp = &argd[0]; /* first argument */
44*0Sstevel@tonic-gate int error;
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate if (Pr == NULL) /* no subject process */
47*0Sstevel@tonic-gate return (ioctl(fd, code, buf));
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate adp->arg_value = fd;
50*0Sstevel@tonic-gate adp->arg_object = NULL;
51*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
52*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
53*0Sstevel@tonic-gate adp->arg_size = 0;
54*0Sstevel@tonic-gate adp++; /* move to code argument */
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate adp->arg_value = code;
57*0Sstevel@tonic-gate adp->arg_object = NULL;
58*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
59*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
60*0Sstevel@tonic-gate adp->arg_size = 0;
61*0Sstevel@tonic-gate adp++; /* move to buffer argument */
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate if (size == 0) {
64*0Sstevel@tonic-gate adp->arg_value = (long)buf;
65*0Sstevel@tonic-gate adp->arg_object = NULL;
66*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
67*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
68*0Sstevel@tonic-gate adp->arg_size = 0;
69*0Sstevel@tonic-gate } else {
70*0Sstevel@tonic-gate adp->arg_value = 0;
71*0Sstevel@tonic-gate adp->arg_object = buf;
72*0Sstevel@tonic-gate adp->arg_type = AT_BYREF;
73*0Sstevel@tonic-gate adp->arg_inout = AI_INOUT;
74*0Sstevel@tonic-gate adp->arg_size = size;
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate
77*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_ioctl, 3, &argd[0]);
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate if (error) {
80*0Sstevel@tonic-gate errno = (error > 0)? error : ENOSYS;
81*0Sstevel@tonic-gate return (-1);
82*0Sstevel@tonic-gate }
83*0Sstevel@tonic-gate return (rval.sys_rval1);
84*0Sstevel@tonic-gate }
85