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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1998-2000 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/isa_defs.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <string.h>
33 #include <errno.h>
34 #include <sys/types.h>
35 #include <sys/statvfs.h>
36 #include <sys/sysmacros.h>
37 #include "libproc.h"
38
39 #ifdef _LP64
40 static void
statvfs_32_to_n(statvfs32_t * src,statvfs_t * dest)41 statvfs_32_to_n(statvfs32_t *src, statvfs_t *dest)
42 {
43 dest->f_bsize = src->f_bsize;
44 dest->f_frsize = src->f_frsize;
45 dest->f_blocks = src->f_blocks;
46 dest->f_bfree = src->f_bfree;
47 dest->f_bavail = src->f_bavail;
48 dest->f_files = src->f_files;
49 dest->f_ffree = src->f_ffree;
50 dest->f_favail = src->f_favail;
51 dest->f_fsid = src->f_fsid;
52 (void) memcpy(dest->f_basetype, src->f_basetype,
53 sizeof (dest->f_basetype));
54 dest->f_flag = src->f_flag;
55 dest->f_namemax = src->f_namemax;
56 (void) memcpy(dest->f_fstr, src->f_fstr,
57 sizeof (dest->f_fstr));
58 }
59 #endif /* _LP64 */
60
61 /*
62 * statvfs() system call -- executed by subject process
63 */
64 int
pr_statvfs(struct ps_prochandle * Pr,const char * path,statvfs_t * buf)65 pr_statvfs(struct ps_prochandle *Pr, const char *path, statvfs_t *buf)
66 {
67 sysret_t rval; /* return value from statvfs() */
68 argdes_t argd[2]; /* arg descriptors for statvfs() */
69 argdes_t *adp = &argd[0]; /* first argument */
70 int error;
71 #ifdef _LP64
72 statvfs32_t statvfs32;
73 #endif /* _LP64 */
74
75 if (Pr == NULL) /* no subject process */
76 return (statvfs(path, buf));
77
78 adp->arg_value = 0;
79 adp->arg_object = (void *)path;
80 adp->arg_type = AT_BYREF;
81 adp->arg_inout = AI_INPUT;
82 adp->arg_size = strlen(path)+1;
83 adp++; /* move to buffer argument */
84
85 adp->arg_value = 0;
86 adp->arg_type = AT_BYREF;
87 adp->arg_inout = AI_OUTPUT;
88 #ifdef _LP64
89 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
90 adp->arg_object = &statvfs32;
91 adp->arg_size = sizeof (statvfs32);
92 } else {
93 adp->arg_object = buf;
94 adp->arg_size = sizeof (*buf);
95 }
96 #else /* _LP64 */
97 adp->arg_object = buf;
98 adp->arg_size = sizeof (*buf);
99 #endif /* _LP64 */
100
101 error = Psyscall(Pr, &rval, SYS_statvfs, 2, &argd[0]);
102
103 if (error) {
104 errno = (error > 0)? error : ENOSYS;
105 return (-1);
106 }
107 #ifdef _LP64
108 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
109 statvfs_32_to_n(&statvfs32, buf);
110 #endif /* _LP64 */
111 return (0);
112 }
113
114 /*
115 * fstatvfs() system call -- executed by subject process
116 */
117 int
pr_fstatvfs(struct ps_prochandle * Pr,int fd,statvfs_t * buf)118 pr_fstatvfs(struct ps_prochandle *Pr, int fd, statvfs_t *buf)
119 {
120 sysret_t rval; /* return value from fstatvfs() */
121 argdes_t argd[2]; /* arg descriptors for fstatvfs() */
122 argdes_t *adp = &argd[0]; /* first argument */
123 int error;
124 #ifdef _LP64
125 statvfs32_t statvfs32;
126 #endif /* _LP64 */
127
128 if (Pr == NULL) /* no subject process */
129 return (fstatvfs(fd, buf));
130
131 adp->arg_value = fd;
132 adp->arg_object = NULL;
133 adp->arg_type = AT_BYVAL;
134 adp->arg_inout = AI_INPUT;
135 adp->arg_size = 0;
136 adp++; /* move to buffer argument */
137
138 adp->arg_value = 0;
139 adp->arg_type = AT_BYREF;
140 adp->arg_inout = AI_OUTPUT;
141 #ifdef _LP64
142 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
143 adp->arg_object = &statvfs32;
144 adp->arg_size = sizeof (statvfs32);
145 } else {
146 adp->arg_object = buf;
147 adp->arg_size = sizeof (*buf);
148 }
149 #else /* _LP64 */
150 adp->arg_object = buf;
151 adp->arg_size = sizeof (*buf);
152 #endif /* _LP64 */
153
154 error = Psyscall(Pr, &rval, SYS_fstatvfs, 2, &argd[0]);
155
156 if (error) {
157 errno = (error > 0)? error : ENOSYS;
158 return (-1);
159 }
160 #ifdef _LP64
161 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
162 statvfs_32_to_n(&statvfs32, buf);
163 #endif /* _LP64 */
164 return (0);
165 }
166