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 1997-2003 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
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 <sys/isa_defs.h>
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #include <stdlib.h>
32*0Sstevel@tonic-gate #include <unistd.h>
33*0Sstevel@tonic-gate #include <signal.h>
34*0Sstevel@tonic-gate #include <memory.h>
35*0Sstevel@tonic-gate #include <errno.h>
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate #include "P32ton.h"
38*0Sstevel@tonic-gate #include "libproc.h"
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate /*
41*0Sstevel@tonic-gate * sigaction() system call -- executed by subject process.
42*0Sstevel@tonic-gate */
43*0Sstevel@tonic-gate int
pr_sigaction(struct ps_prochandle * Pr,int sig,const struct sigaction * act,struct sigaction * oact)44*0Sstevel@tonic-gate pr_sigaction(struct ps_prochandle *Pr,
45*0Sstevel@tonic-gate int sig, const struct sigaction *act, struct sigaction *oact)
46*0Sstevel@tonic-gate {
47*0Sstevel@tonic-gate sysret_t rval; /* return value from sigaction() */
48*0Sstevel@tonic-gate argdes_t argd[3]; /* arg descriptors for sigaction() */
49*0Sstevel@tonic-gate argdes_t *adp;
50*0Sstevel@tonic-gate int error;
51*0Sstevel@tonic-gate #ifdef _LP64
52*0Sstevel@tonic-gate struct sigaction32 act32;
53*0Sstevel@tonic-gate struct sigaction32 oact32;
54*0Sstevel@tonic-gate #endif /* _LP64 */
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate if (Pr == NULL) /* no subject process */
57*0Sstevel@tonic-gate return (sigaction(sig, act, oact));
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate adp = &argd[0]; /* sig argument */
60*0Sstevel@tonic-gate adp->arg_value = sig;
61*0Sstevel@tonic-gate adp->arg_object = NULL;
62*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
63*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
64*0Sstevel@tonic-gate adp->arg_size = 0;
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate adp++; /* act argument */
67*0Sstevel@tonic-gate adp->arg_value = 0;
68*0Sstevel@tonic-gate if (act == NULL) {
69*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
70*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
71*0Sstevel@tonic-gate adp->arg_object = NULL;
72*0Sstevel@tonic-gate adp->arg_size = 0;
73*0Sstevel@tonic-gate } else {
74*0Sstevel@tonic-gate adp->arg_type = AT_BYREF;
75*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
76*0Sstevel@tonic-gate #ifdef _LP64
77*0Sstevel@tonic-gate if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
78*0Sstevel@tonic-gate sigaction_n_to_32(act, &act32);
79*0Sstevel@tonic-gate adp->arg_object = &act32;
80*0Sstevel@tonic-gate adp->arg_size = sizeof (act32);
81*0Sstevel@tonic-gate } else {
82*0Sstevel@tonic-gate adp->arg_object = (void *)act;
83*0Sstevel@tonic-gate adp->arg_size = sizeof (*act);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate #else /* _LP64 */
86*0Sstevel@tonic-gate adp->arg_object = (void *)act;
87*0Sstevel@tonic-gate adp->arg_size = sizeof (*act);
88*0Sstevel@tonic-gate #endif /* _LP64 */
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate adp++; /* oact argument */
92*0Sstevel@tonic-gate adp->arg_value = 0;
93*0Sstevel@tonic-gate if (oact == NULL) {
94*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
95*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
96*0Sstevel@tonic-gate adp->arg_object = NULL;
97*0Sstevel@tonic-gate adp->arg_size = 0;
98*0Sstevel@tonic-gate } else {
99*0Sstevel@tonic-gate adp->arg_type = AT_BYREF;
100*0Sstevel@tonic-gate adp->arg_inout = AI_OUTPUT;
101*0Sstevel@tonic-gate #ifdef _LP64
102*0Sstevel@tonic-gate if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
103*0Sstevel@tonic-gate adp->arg_object = &oact32;
104*0Sstevel@tonic-gate adp->arg_size = sizeof (oact32);
105*0Sstevel@tonic-gate } else {
106*0Sstevel@tonic-gate adp->arg_object = oact;
107*0Sstevel@tonic-gate adp->arg_size = sizeof (*oact);
108*0Sstevel@tonic-gate }
109*0Sstevel@tonic-gate #else /* _LP64 */
110*0Sstevel@tonic-gate adp->arg_object = oact;
111*0Sstevel@tonic-gate adp->arg_size = sizeof (*oact);
112*0Sstevel@tonic-gate #endif /* _LP64 */
113*0Sstevel@tonic-gate }
114*0Sstevel@tonic-gate
115*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_sigaction, 3, &argd[0]);
116*0Sstevel@tonic-gate
117*0Sstevel@tonic-gate if (error) {
118*0Sstevel@tonic-gate errno = (error > 0)? error : ENOSYS;
119*0Sstevel@tonic-gate return (-1);
120*0Sstevel@tonic-gate }
121*0Sstevel@tonic-gate #ifdef _LP64
122*0Sstevel@tonic-gate if (oact != NULL && Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
123*0Sstevel@tonic-gate sigaction_32_to_n(&oact32, oact);
124*0Sstevel@tonic-gate #endif /* _LP64 */
125*0Sstevel@tonic-gate return (rval.sys_rval1);
126*0Sstevel@tonic-gate }
127