17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*9acbbeafSnn35248 * Common Development and Distribution License (the "License").
6*9acbbeafSnn35248 * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*9acbbeafSnn35248 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate #include <string.h>
297c478bd9Sstevel@tonic-gate #include <limits.h>
307c478bd9Sstevel@tonic-gate #include <sys/types.h>
317c478bd9Sstevel@tonic-gate #include <sys/stat.h>
327c478bd9Sstevel@tonic-gate #include "Pcontrol.h"
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate /*
357c478bd9Sstevel@tonic-gate * Return TRUE iff dir is the /proc directory.
367c478bd9Sstevel@tonic-gate */
377c478bd9Sstevel@tonic-gate int
Pisprocdir(struct ps_prochandle * Pr,const char * dir)387c478bd9Sstevel@tonic-gate Pisprocdir(struct ps_prochandle *Pr, const char *dir)
397c478bd9Sstevel@tonic-gate {
407c478bd9Sstevel@tonic-gate char path[PATH_MAX];
417c478bd9Sstevel@tonic-gate struct stat statb;
427c478bd9Sstevel@tonic-gate struct statvfs statvfsb;
437c478bd9Sstevel@tonic-gate
447c478bd9Sstevel@tonic-gate if (*dir == '/')
45*9acbbeafSnn35248 (void) snprintf(path, sizeof (path), "%s/%d/root%s",
46*9acbbeafSnn35248 procfs_path, (int)Pr->pid, dir);
477c478bd9Sstevel@tonic-gate else
48*9acbbeafSnn35248 (void) snprintf(path, sizeof (path), "%s/%d/cwd/%s",
49*9acbbeafSnn35248 procfs_path, (int)Pr->pid, dir);
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate /*
527c478bd9Sstevel@tonic-gate * We can't compare the statb.st_fstype string to "proc" because
537c478bd9Sstevel@tonic-gate * a loop-back mount of /proc would show "lofs" instead of "proc".
547c478bd9Sstevel@tonic-gate * Instead we use the statvfs() f_basetype string.
557c478bd9Sstevel@tonic-gate */
567c478bd9Sstevel@tonic-gate return (stat(path, &statb) == 0 &&
577c478bd9Sstevel@tonic-gate statvfs(path, &statvfsb) == 0 &&
587c478bd9Sstevel@tonic-gate (statb.st_mode & S_IFMT) == S_IFDIR &&
597c478bd9Sstevel@tonic-gate statb.st_ino == 2 &&
607c478bd9Sstevel@tonic-gate strcmp(statvfsb.f_basetype, "proc") == 0);
617c478bd9Sstevel@tonic-gate }
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