1/* $OpenBSD: uname.c,v 1.11 2016/08/27 03:55:43 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#include <stdio.h> /* for NULL */ 35 36/* A slightly modified copy of this file exists in libexec/ld.so */ 37 38int 39uname(struct utsname *name) 40{ 41 int mib[2], rval; 42 size_t len; 43 44 rval = 0; 45 46 mib[0] = CTL_KERN; 47 mib[1] = KERN_OSTYPE; 48 len = sizeof(name->sysname); 49 if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) 50 rval = -1; 51 52 mib[0] = CTL_KERN; 53 mib[1] = KERN_HOSTNAME; 54 len = sizeof(name->nodename); 55 if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) 56 rval = -1; 57 58 mib[0] = CTL_KERN; 59 mib[1] = KERN_OSRELEASE; 60 len = sizeof(name->release); 61 if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) 62 rval = -1; 63 64 mib[0] = CTL_KERN; 65 mib[1] = KERN_OSVERSION; 66 len = sizeof(name->version); 67 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) { 68 mib[0] = CTL_KERN; 69 mib[1] = KERN_VERSION; 70 len = sizeof(name->version); 71 if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) 72 rval = -1; 73 } 74 75 mib[0] = CTL_HW; 76 mib[1] = HW_MACHINE; 77 len = sizeof(name->machine); 78 if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) 79 rval = -1; 80 return (rval); 81} 82