2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/*
2N/A * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A#include <string.h>
2N/A#include <limits.h>
2N/A#include <sys/types.h>
2N/A#include <sys/stat.h>
2N/A#include "Pcontrol.h"
2N/A
2N/A/*
2N/A * Return TRUE iff dir is the /proc directory.
2N/A */
2N/Aint
2N/APisprocdir(struct ps_prochandle *Pr, const char *dir)
2N/A{
2N/A char path[PATH_MAX];
2N/A struct stat statb;
2N/A struct statvfs statvfsb;
2N/A
2N/A if (*dir == '/')
2N/A (void) snprintf(path, sizeof (path), "%s/%d/root%s",
2N/A procfs_path, (int)Pr->pid, dir);
2N/A else
2N/A (void) snprintf(path, sizeof (path), "%s/%d/cwd/%s",
2N/A procfs_path, (int)Pr->pid, dir);
2N/A
2N/A /*
2N/A * We can't compare the statb.st_fstype string to "proc" because
2N/A * a loop-back mount of /proc would show "lofs" instead of "proc".
2N/A * Instead we use the statvfs() f_basetype string.
2N/A */
2N/A return (stat(path, &statb) == 0 &&
2N/A statvfs(path, &statvfsb) == 0 &&
2N/A (statb.st_mode & S_IFMT) == S_IFDIR &&
2N/A statb.st_ino == 2 &&
2N/A strcmp(statvfsb.f_basetype, "proc") == 0);
2N/A}