1 /* $OpenBSD: dl_uname.c,v 1.3 2020/10/15 04:12:43 deraadt 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 "archdep.h" 36 37 /* 38 * This file was copied from libc/gen/uname.c and modified for ld.so's 39 * syscall method which returns -errno. Also KERN_OSVERSION is not retrieved 40 * since ld.so doesn't need it. 41 */ 42 43 int 44 _dl_uname(struct utsname *name) 45 { 46 const int otmib[2] = { CTL_KERN, KERN_OSTYPE }; 47 const int ormib[2] = { CTL_KERN, KERN_OSRELEASE }; 48 const int hmmib[2] = { CTL_HW, HW_MACHINE }; 49 int rval; 50 size_t len; 51 52 rval = 0; 53 54 len = sizeof(name->sysname); 55 if (_dl_sysctl(otmib, 2, &name->sysname, &len, NULL, 0) < 0) 56 rval = -1; 57 58 len = sizeof(name->release); 59 if (_dl_sysctl(ormib, 2, &name->release, &len, NULL, 0) < 0) 60 rval = -1; 61 62 len = sizeof(name->machine); 63 if (_dl_sysctl(hmmib, 2, &name->machine, &len, NULL, 0) < 0) 64 rval = -1; 65 return (rval); 66 } 67