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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * This is in a separate file because procfs.h cannot be included if 31 * _FILE_OFFSET_BITES=64 is defined. 32 */ 33 34 #include <procfs.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include <fcntl.h> 38 #include <unistd.h> 39 40 ctid_t 41 proc_get_ctid() 42 { 43 id_t ctid; 44 int fd; 45 ssize_t bytes; 46 psinfo_t psinfo; 47 48 fd = open("/proc/self/psinfo", O_RDONLY); 49 if (fd < 0) 50 return (-1); 51 52 bytes = read(fd, &psinfo, sizeof (psinfo)); 53 if (bytes == sizeof (psinfo)) 54 ctid = psinfo.pr_contract; 55 else 56 ctid = -1; 57 58 (void) close(fd); 59 return (ctid); 60 } 61