Pisprocdir.c (7c478bd9) Pisprocdir.c (9acbbeaf)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
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.
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance 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/*
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
23 * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved.
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident "%Z%%M% %I% %E% SMI"
28
29#include <string.h>
30#include <limits.h>
31#include <sys/types.h>

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38int
39Pisprocdir(struct ps_prochandle *Pr, const char *dir)
40{
41 char path[PATH_MAX];
42 struct stat statb;
43 struct statvfs statvfsb;
44
45 if (*dir == '/')
23 * Use is subject to license terms.
24 */
25
26#pragma ident "%Z%%M% %I% %E% SMI"
27
28#include <string.h>
29#include <limits.h>
30#include <sys/types.h>

--- 6 unchanged lines hidden (view full) ---

37int
38Pisprocdir(struct ps_prochandle *Pr, const char *dir)
39{
40 char path[PATH_MAX];
41 struct stat statb;
42 struct statvfs statvfsb;
43
44 if (*dir == '/')
46 (void) snprintf(path, sizeof (path), "/proc/%d/root%s",
47 (int)Pr->pid, dir);
45 (void) snprintf(path, sizeof (path), "%s/%d/root%s",
46 procfs_path, (int)Pr->pid, dir);
48 else
47 else
49 (void) snprintf(path, sizeof (path), "/proc/%d/cwd/%s",
50 (int)Pr->pid, dir);
48 (void) snprintf(path, sizeof (path), "%s/%d/cwd/%s",
49 procfs_path, (int)Pr->pid, dir);
51
52 /*
53 * We can't compare the statb.st_fstype string to "proc" because
54 * a loop-back mount of /proc would show "lofs" instead of "proc".
55 * Instead we use the statvfs() f_basetype string.
56 */
57 return (stat(path, &statb) == 0 &&
58 statvfs(path, &statvfsb) == 0 &&
59 (statb.st_mode & S_IFMT) == S_IFDIR &&
60 statb.st_ino == 2 &&
61 strcmp(statvfsb.f_basetype, "proc") == 0);
62}
50
51 /*
52 * We can't compare the statb.st_fstype string to "proc" because
53 * a loop-back mount of /proc would show "lofs" instead of "proc".
54 * Instead we use the statvfs() f_basetype string.
55 */
56 return (stat(path, &statb) == 0 &&
57 statvfs(path, &statvfsb) == 0 &&
58 (statb.st_mode & S_IFMT) == S_IFDIR &&
59 statb.st_ino == 2 &&
60 strcmp(statvfsb.f_basetype, "proc") == 0);
61}