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 #include <sys/isa_defs.h>
28 #include <stdlib.h>
29 #include <unistd.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <sys/types.h>
33 #include <sys/statvfs.h>
34 #include <sys/sysmacros.h>
35 #include "libproc.h"
36
37 #ifdef _LP64
38 static void
statvfs_32_to_n(statvfs32_t * src,statvfs_t * dest)39 statvfs_32_to_n(statvfs32_t *src, statvfs_t *dest)
40 {
41 dest->f_bsize = src->f_bsize;
42 dest->f_frsize = src->f_frsize;
43 dest->f_blocks = src->f_blocks;
44 dest->f_bfree = src->f_bfree;
45 dest->f_bavail = src->f_bavail;
46 dest->f_files = src->f_files;
47 dest->f_ffree = src->f_ffree;
48 dest->f_favail = src->f_favail;
49 dest->f_fsid = src->f_fsid;
50 (void) memcpy(dest->f_basetype, src->f_basetype,
51 sizeof (dest->f_basetype));
52 dest->f_flag = src->f_flag;
53 dest->f_namemax = src->f_namemax;
54 (void) memcpy(dest->f_fstr, src->f_fstr,
55 sizeof (dest->f_fstr));
56 }
57 #endif /* _LP64 */
58
59 /*
60 * statvfs() system call -- executed by subject process
61 */
62 int
pr_statvfs(struct ps_prochandle * Pr,const char * path,statvfs_t * buf)63 pr_statvfs(struct ps_prochandle *Pr, const char *path, statvfs_t *buf)
64 {
65 sysret_t rval; /* return value from statvfs() */
66 argdes_t argd[2]; /* arg descriptors for statvfs() */
67 argdes_t *adp = &argd[0]; /* first argument */
68 int error;
69 #ifdef _LP64
70 statvfs32_t statvfs32;
71 #endif /* _LP64 */
72
73 if (Pr == NULL) /* no subject process */
74 return (statvfs(path, buf));
75
76 adp->arg_value = 0;
77 adp->arg_object = (void *)path;
78 adp->arg_type = AT_BYREF;
79 adp->arg_inout = AI_INPUT;
80 adp->arg_size = strlen(path)+1;
81 adp++; /* move to buffer argument */
82
83 adp->arg_value = 0;
84 adp->arg_type = AT_BYREF;
85 adp->arg_inout = AI_OUTPUT;
86 #ifdef _LP64
87 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
88 adp->arg_object = &statvfs32;
89 adp->arg_size = sizeof (statvfs32);
90 } else {
91 adp->arg_object = buf;
92 adp->arg_size = sizeof (*buf);
93 }
94 #else /* _LP64 */
95 adp->arg_object = buf;
96 adp->arg_size = sizeof (*buf);
97 #endif /* _LP64 */
98
99 error = Psyscall(Pr, &rval, SYS_statvfs, 2, &argd[0]);
100
101 if (error) {
102 errno = (error > 0)? error : ENOSYS;
103 return (-1);
104 }
105 #ifdef _LP64
106 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
107 statvfs_32_to_n(&statvfs32, buf);
108 #endif /* _LP64 */
109 return (0);
110 }
111
112 /*
113 * fstatvfs() system call -- executed by subject process
114 */
115 int
pr_fstatvfs(struct ps_prochandle * Pr,int fd,statvfs_t * buf)116 pr_fstatvfs(struct ps_prochandle *Pr, int fd, statvfs_t *buf)
117 {
118 sysret_t rval; /* return value from fstatvfs() */
119 argdes_t argd[2]; /* arg descriptors for fstatvfs() */
120 argdes_t *adp = &argd[0]; /* first argument */
121 int error;
122 #ifdef _LP64
123 statvfs32_t statvfs32;
124 #endif /* _LP64 */
125
126 if (Pr == NULL) /* no subject process */
127 return (fstatvfs(fd, buf));
128
129 adp->arg_value = fd;
130 adp->arg_object = NULL;
131 adp->arg_type = AT_BYVAL;
132 adp->arg_inout = AI_INPUT;
133 adp->arg_size = 0;
134 adp++; /* move to buffer argument */
135
136 adp->arg_value = 0;
137 adp->arg_type = AT_BYREF;
138 adp->arg_inout = AI_OUTPUT;
139 #ifdef _LP64
140 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
141 adp->arg_object = &statvfs32;
142 adp->arg_size = sizeof (statvfs32);
143 } else {
144 adp->arg_object = buf;
145 adp->arg_size = sizeof (*buf);
146 }
147 #else /* _LP64 */
148 adp->arg_object = buf;
149 adp->arg_size = sizeof (*buf);
150 #endif /* _LP64 */
151
152 error = Psyscall(Pr, &rval, SYS_fstatvfs, 2, &argd[0]);
153
154 if (error) {
155 errno = (error > 0)? error : ENOSYS;
156 return (-1);
157 }
158 #ifdef _LP64
159 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
160 statvfs_32_to_n(&statvfs32, buf);
161 #endif /* _LP64 */
162 return (0);
163 }
164