1/* $OpenBSD: dl_uname.c,v 1.4 2022/01/08 06:49:41 guenther Exp $ */ 2/* 3 * Copyright (c) 1994 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/types.h> 32#include <sys/sysctl.h> 33#include <sys/utsname.h> 34 35#include "syscall.h" 36#include "util.h" 37 38/* 39 * This file was copied from libc/gen/uname.c and modified for ld.so's 40 * syscall method which returns -errno. Also KERN_OSVERSION is not retrieved 41 * since ld.so doesn't need it. 42 */ 43 44int 45_dl_uname(struct utsname *name) 46{ 47 const int otmib[2] = { CTL_KERN, KERN_OSTYPE }; 48 const int ormib[2] = { CTL_KERN, KERN_OSRELEASE }; 49 const int hmmib[2] = { CTL_HW, HW_MACHINE }; 50 int rval; 51 size_t len; 52 53 rval = 0; 54 55 len = sizeof(name->sysname); 56 if (_dl_sysctl(otmib, 2, &name->sysname, &len, NULL, 0) < 0) 57 rval = -1; 58 59 len = sizeof(name->release); 60 if (_dl_sysctl(ormib, 2, &name->release, &len, NULL, 0) < 0) 61 rval = -1; 62 63 len = sizeof(name->machine); 64 if (_dl_sysctl(hmmib, 2, &name->machine, &len, NULL, 0) < 0) 65 rval = -1; 66 return (rval); 67} 68