10daf62d9SStanislav Sedov /*- 25e53a4f9SPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 35e53a4f9SPedro F. Giffuni * 40daf62d9SStanislav Sedov * Copyright (c) 2009 Ulf Lilleengen 50daf62d9SStanislav Sedov * All rights reserved. 60daf62d9SStanislav Sedov * 70daf62d9SStanislav Sedov * Redistribution and use in source and binary forms, with or without 80daf62d9SStanislav Sedov * modification, are permitted provided that the following conditions 90daf62d9SStanislav Sedov * are met: 100daf62d9SStanislav Sedov * 1. Redistributions of source code must retain the above copyright 110daf62d9SStanislav Sedov * notice, this list of conditions and the following disclaimer. 120daf62d9SStanislav Sedov * 2. Redistributions in binary form must reproduce the above copyright 130daf62d9SStanislav Sedov * notice, this list of conditions and the following disclaimer in the 140daf62d9SStanislav Sedov * documentation and/or other materials provided with the distribution. 150daf62d9SStanislav Sedov * 160daf62d9SStanislav Sedov * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 170daf62d9SStanislav Sedov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 180daf62d9SStanislav Sedov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 190daf62d9SStanislav Sedov * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 200daf62d9SStanislav Sedov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 210daf62d9SStanislav Sedov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 220daf62d9SStanislav Sedov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 230daf62d9SStanislav Sedov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 240daf62d9SStanislav Sedov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 250daf62d9SStanislav Sedov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 260daf62d9SStanislav Sedov * SUCH DAMAGE. 270daf62d9SStanislav Sedov * 280daf62d9SStanislav Sedov * $FreeBSD$ 290daf62d9SStanislav Sedov */ 300daf62d9SStanislav Sedov 310daf62d9SStanislav Sedov #include <sys/cdefs.h> 320daf62d9SStanislav Sedov __FBSDID("$FreeBSD$"); 330daf62d9SStanislav Sedov 340daf62d9SStanislav Sedov #include <sys/param.h> 350daf62d9SStanislav Sedov #include <sys/sysctl.h> 367adf46f0SEnji Cooper #include <sys/user.h> 370daf62d9SStanislav Sedov #include <stdlib.h> 380daf62d9SStanislav Sedov #include <string.h> 390daf62d9SStanislav Sedov 400daf62d9SStanislav Sedov #include "libutil.h" 410daf62d9SStanislav Sedov 420daf62d9SStanislav Sedov struct kinfo_proc * 430daf62d9SStanislav Sedov kinfo_getproc(pid_t pid) 440daf62d9SStanislav Sedov { 450daf62d9SStanislav Sedov struct kinfo_proc *kipp; 460daf62d9SStanislav Sedov int mib[4]; 470daf62d9SStanislav Sedov size_t len; 480daf62d9SStanislav Sedov 49*904c148fSEd Maste len = sizeof(*kipp); 50*904c148fSEd Maste kipp = malloc(len); 51*904c148fSEd Maste if (kipp == NULL) 52*904c148fSEd Maste return (NULL); 53*904c148fSEd Maste 540daf62d9SStanislav Sedov mib[0] = CTL_KERN; 550daf62d9SStanislav Sedov mib[1] = KERN_PROC; 560daf62d9SStanislav Sedov mib[2] = KERN_PROC_PID; 570daf62d9SStanislav Sedov mib[3] = pid; 580daf62d9SStanislav Sedov 597adf46f0SEnji 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