1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 1997-2003 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate #include <string.h> 30*7c478bd9Sstevel@tonic-gate #include <limits.h> 31*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 32*7c478bd9Sstevel@tonic-gate #include <sys/stat.h> 33*7c478bd9Sstevel@tonic-gate #include "Pcontrol.h" 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate /* 36*7c478bd9Sstevel@tonic-gate * Return TRUE iff dir is the /proc directory. 37*7c478bd9Sstevel@tonic-gate */ 38*7c478bd9Sstevel@tonic-gate int 39*7c478bd9Sstevel@tonic-gate Pisprocdir(struct ps_prochandle *Pr, const char *dir) 40*7c478bd9Sstevel@tonic-gate { 41*7c478bd9Sstevel@tonic-gate char path[PATH_MAX]; 42*7c478bd9Sstevel@tonic-gate struct stat statb; 43*7c478bd9Sstevel@tonic-gate struct statvfs statvfsb; 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate if (*dir == '/') 46*7c478bd9Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "/proc/%d/root%s", 47*7c478bd9Sstevel@tonic-gate (int)Pr->pid, dir); 48*7c478bd9Sstevel@tonic-gate else 49*7c478bd9Sstevel@tonic-gate (void) snprintf(path, sizeof (path), "/proc/%d/cwd/%s", 50*7c478bd9Sstevel@tonic-gate (int)Pr->pid, dir); 51*7c478bd9Sstevel@tonic-gate 52*7c478bd9Sstevel@tonic-gate /* 53*7c478bd9Sstevel@tonic-gate * We can't compare the statb.st_fstype string to "proc" because 54*7c478bd9Sstevel@tonic-gate * a loop-back mount of /proc would show "lofs" instead of "proc". 55*7c478bd9Sstevel@tonic-gate * Instead we use the statvfs() f_basetype string. 56*7c478bd9Sstevel@tonic-gate */ 57*7c478bd9Sstevel@tonic-gate return (stat(path, &statb) == 0 && 58*7c478bd9Sstevel@tonic-gate statvfs(path, &statvfsb) == 0 && 59*7c478bd9Sstevel@tonic-gate (statb.st_mode & S_IFMT) == S_IFDIR && 60*7c478bd9Sstevel@tonic-gate statb.st_ino == 2 && 61*7c478bd9Sstevel@tonic-gate strcmp(statvfsb.f_basetype, "proc") == 0); 62*7c478bd9Sstevel@tonic-gate } 63