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 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * This is in a separate file because procfs.h cannot be included if 29 * _FILE_OFFSET_BITES=64 is defined. 30 */ 31 32 #include <procfs.h> 33 #include <sys/types.h> 34 #include <sys/stat.h> 35 #include <fcntl.h> 36 #include <unistd.h> 37 38 ctid_t proc_get_ctid()39proc_get_ctid() 40 { 41 id_t ctid; 42 int fd; 43 ssize_t bytes; 44 psinfo_t psinfo; 45 46 fd = open("/proc/self/psinfo", O_RDONLY); 47 if (fd < 0) 48 return (-1); 49 50 bytes = read(fd, &psinfo, sizeof (psinfo)); 51 if (bytes == sizeof (psinfo)) 52 ctid = psinfo.pr_contract; 53 else 54 ctid = -1; 55 56 (void) close(fd); 57 return (ctid); 58 } 59