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 <sys/isa_defs.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <unistd.h>
32*0Sstevel@tonic-gate #include <errno.h>
33*0Sstevel@tonic-gate #include <fcntl.h>
34*0Sstevel@tonic-gate #include "libproc.h"
35*0Sstevel@tonic-gate
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate * fcntl() system call -- executed by subject process.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate int
pr_fcntl(struct ps_prochandle * Pr,int fd,int cmd,void * argp)40*0Sstevel@tonic-gate pr_fcntl(struct ps_prochandle *Pr, int fd, int cmd, void *argp)
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate sysret_t rval; /* return value from fcntl() */
43*0Sstevel@tonic-gate argdes_t argd[3]; /* arg descriptors for fcntl() */
44*0Sstevel@tonic-gate argdes_t *adp;
45*0Sstevel@tonic-gate int error;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate if (Pr == NULL) /* no subject process */
48*0Sstevel@tonic-gate return (fcntl(fd, cmd, argp));
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate adp = &argd[0]; /* file descriptor argument */
51*0Sstevel@tonic-gate adp->arg_value = fd;
52*0Sstevel@tonic-gate adp->arg_object = NULL;
53*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
54*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
55*0Sstevel@tonic-gate adp->arg_size = 0;
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate adp++; /* cmd argument */
58*0Sstevel@tonic-gate #ifdef _LP64
59*0Sstevel@tonic-gate if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
60*0Sstevel@tonic-gate /*
61*0Sstevel@tonic-gate * Guilty knowledge of the large file compilation environment
62*0Sstevel@tonic-gate */
63*0Sstevel@tonic-gate switch (cmd) {
64*0Sstevel@tonic-gate case F_GETLK:
65*0Sstevel@tonic-gate cmd = 33;
66*0Sstevel@tonic-gate break;
67*0Sstevel@tonic-gate case F_SETLK:
68*0Sstevel@tonic-gate cmd = 34;
69*0Sstevel@tonic-gate break;
70*0Sstevel@tonic-gate case F_SETLKW:
71*0Sstevel@tonic-gate cmd = 35;
72*0Sstevel@tonic-gate break;
73*0Sstevel@tonic-gate case F_FREESP:
74*0Sstevel@tonic-gate cmd = 27;
75*0Sstevel@tonic-gate break;
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate }
78*0Sstevel@tonic-gate #endif /* _LP64 */
79*0Sstevel@tonic-gate adp->arg_value = cmd;
80*0Sstevel@tonic-gate adp->arg_object = NULL;
81*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
82*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
83*0Sstevel@tonic-gate adp->arg_size = 0;
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate adp++; /* argp argument */
86*0Sstevel@tonic-gate if (argp == NULL) {
87*0Sstevel@tonic-gate adp->arg_value = 0;
88*0Sstevel@tonic-gate adp->arg_object = NULL;
89*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
90*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
91*0Sstevel@tonic-gate adp->arg_size = 0;
92*0Sstevel@tonic-gate } else {
93*0Sstevel@tonic-gate adp->arg_value = 0;
94*0Sstevel@tonic-gate adp->arg_object = argp;
95*0Sstevel@tonic-gate adp->arg_type = AT_BYREF;
96*0Sstevel@tonic-gate adp->arg_inout = AI_INOUT;
97*0Sstevel@tonic-gate switch (cmd) {
98*0Sstevel@tonic-gate case F_GETLK:
99*0Sstevel@tonic-gate case F_SETLK:
100*0Sstevel@tonic-gate case F_SETLKW:
101*0Sstevel@tonic-gate case F_ALLOCSP:
102*0Sstevel@tonic-gate case F_FREESP:
103*0Sstevel@tonic-gate adp->arg_size = sizeof (struct flock);
104*0Sstevel@tonic-gate break;
105*0Sstevel@tonic-gate #ifdef _LP64
106*0Sstevel@tonic-gate case 33:
107*0Sstevel@tonic-gate case 34:
108*0Sstevel@tonic-gate case 35:
109*0Sstevel@tonic-gate case 27:
110*0Sstevel@tonic-gate adp->arg_size = sizeof (struct flock64_32);
111*0Sstevel@tonic-gate #else /* _LP64 */
112*0Sstevel@tonic-gate case F_GETLK64:
113*0Sstevel@tonic-gate case F_SETLK64:
114*0Sstevel@tonic-gate case F_SETLKW64:
115*0Sstevel@tonic-gate case F_FREESP64:
116*0Sstevel@tonic-gate adp->arg_size = sizeof (struct flock64);
117*0Sstevel@tonic-gate #endif /* _LP64 */
118*0Sstevel@tonic-gate break;
119*0Sstevel@tonic-gate case F_SHARE:
120*0Sstevel@tonic-gate case F_UNSHARE:
121*0Sstevel@tonic-gate adp->arg_size = sizeof (struct fshare);
122*0Sstevel@tonic-gate break;
123*0Sstevel@tonic-gate default:
124*0Sstevel@tonic-gate adp->arg_value = (long)argp;
125*0Sstevel@tonic-gate adp->arg_object = NULL;
126*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
127*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
128*0Sstevel@tonic-gate adp->arg_size = 0;
129*0Sstevel@tonic-gate break;
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate }
132*0Sstevel@tonic-gate
133*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_fcntl, 3, &argd[0]);
134*0Sstevel@tonic-gate
135*0Sstevel@tonic-gate if (error) {
136*0Sstevel@tonic-gate errno = (error > 0)? error : ENOSYS;
137*0Sstevel@tonic-gate return (-1);
138*0Sstevel@tonic-gate }
139*0Sstevel@tonic-gate return (rval.sys_rval1);
140*0Sstevel@tonic-gate }
141