10daf62d9SStanislav Sedov /*- 20daf62d9SStanislav Sedov * Copyright (c) 2009 Ulf Lilleengen 30daf62d9SStanislav Sedov * All rights reserved. 40daf62d9SStanislav Sedov * 50daf62d9SStanislav Sedov * Redistribution and use in source and binary forms, with or without 60daf62d9SStanislav Sedov * modification, are permitted provided that the following conditions 70daf62d9SStanislav Sedov * are met: 80daf62d9SStanislav Sedov * 1. Redistributions of source code must retain the above copyright 90daf62d9SStanislav Sedov * notice, this list of conditions and the following disclaimer. 100daf62d9SStanislav Sedov * 2. Redistributions in binary form must reproduce the above copyright 110daf62d9SStanislav Sedov * notice, this list of conditions and the following disclaimer in the 120daf62d9SStanislav Sedov * documentation and/or other materials provided with the distribution. 130daf62d9SStanislav Sedov * 140daf62d9SStanislav Sedov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 150daf62d9SStanislav Sedov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 160daf62d9SStanislav Sedov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 170daf62d9SStanislav Sedov * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 180daf62d9SStanislav Sedov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 190daf62d9SStanislav Sedov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 200daf62d9SStanislav Sedov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 210daf62d9SStanislav Sedov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 220daf62d9SStanislav Sedov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 230daf62d9SStanislav Sedov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 240daf62d9SStanislav Sedov * SUCH DAMAGE. 250daf62d9SStanislav Sedov * 260daf62d9SStanislav Sedov * $FreeBSD$ 270daf62d9SStanislav Sedov */ 280daf62d9SStanislav Sedov 290daf62d9SStanislav Sedov #include <sys/cdefs.h> 300daf62d9SStanislav Sedov __FBSDID("$FreeBSD$"); 310daf62d9SStanislav Sedov 320daf62d9SStanislav Sedov #include <sys/param.h> 330daf62d9SStanislav Sedov #include <sys/sysctl.h> 34*7adf46f0SEnji Cooper #include <sys/user.h> 350daf62d9SStanislav Sedov #include <stdlib.h> 360daf62d9SStanislav Sedov #include <string.h> 370daf62d9SStanislav Sedov 380daf62d9SStanislav Sedov #include "libutil.h" 390daf62d9SStanislav Sedov 400daf62d9SStanislav Sedov struct kinfo_proc * 410daf62d9SStanislav Sedov kinfo_getproc(pid_t pid) 420daf62d9SStanislav Sedov { 430daf62d9SStanislav Sedov struct kinfo_proc *kipp; 440daf62d9SStanislav Sedov int mib[4]; 450daf62d9SStanislav Sedov size_t len; 460daf62d9SStanislav Sedov 470daf62d9SStanislav Sedov len = 0; 480daf62d9SStanislav Sedov mib[0] = CTL_KERN; 490daf62d9SStanislav Sedov mib[1] = KERN_PROC; 500daf62d9SStanislav Sedov mib[2] = KERN_PROC_PID; 510daf62d9SStanislav Sedov mib[3] = pid; 52*7adf46f0SEnji Cooper if (sysctl(mib, nitems(mib), NULL, &len, NULL, 0) < 0) 530daf62d9SStanislav Sedov return (NULL); 540daf62d9SStanislav Sedov 550daf62d9SStanislav Sedov kipp = malloc(len); 560daf62d9SStanislav Sedov if (kipp == NULL) 570daf62d9SStanislav Sedov return (NULL); 580daf62d9SStanislav Sedov 59*7adf46f0SEnji Cooper if (sysctl(mib, nitems(mib), kipp, &len, NULL, 0) < 0) 600daf62d9SStanislav Sedov goto bad; 610daf62d9SStanislav Sedov if (len != sizeof(*kipp)) 620daf62d9SStanislav Sedov goto bad; 630daf62d9SStanislav Sedov if (kipp->ki_structsize != sizeof(*kipp)) 640daf62d9SStanislav Sedov goto bad; 650daf62d9SStanislav Sedov if (kipp->ki_pid != pid) 660daf62d9SStanislav Sedov goto bad; 670daf62d9SStanislav Sedov return (kipp); 680daf62d9SStanislav Sedov bad: 690daf62d9SStanislav Sedov free(kipp); 700daf62d9SStanislav Sedov return (NULL); 710daf62d9SStanislav Sedov } 72