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. 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 /* Copyright (c) 1984 AT&T */ 23 /* All Rights Reserved */ 24 25 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */ 26 27 #include <sys/types.h> 28 #include <sys/stat.h> 29 #include <sys/sysmacros.h> 30 31 key_t 32 ftok(path, id) 33 char *path; 34 char id; 35 { 36 struct stat st; 37 38 return(stat(path, &st) < 0 ? (key_t)-1 : 39 (key_t)((key_t)id << 24 | ((long)(unsigned)minor(st.st_dev)) << 16 | 40 (unsigned)st.st_ino)); 41 } 42