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 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 } 62