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 2003 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 #include <sys/types.h> 30 #include <sys/stat.h> 31 #include <fcntl.h> 32 #include <stdio.h> 33 #include <unistd.h> 34 #include "rcapd_stat.h" 35 36 /* 37 * Return the pid of the writer of the statistics file. 38 */ 39 pid_t 40 stat_get_rcapd_pid(char *file) 41 { 42 int fd; 43 rcapd_stat_hdr_t hdr; 44 char procfile[20]; 45 struct stat st; 46 47 if ((fd = open(file, O_RDONLY)) < 0) 48 return (-1); 49 50 if (read(fd, &hdr, sizeof (hdr)) != sizeof (hdr)) { 51 (void) close(fd); 52 return (-1); 53 } 54 (void) close(fd); 55 56 (void) snprintf(procfile, 20, "/proc/%d/psinfo", (int)hdr.rs_pid); 57 if (stat(procfile, &st) == 0) 58 return (hdr.rs_pid); 59 else 60 return (-1); 61 } 62