kernel/syscall/uname.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  24  *
  25  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28
  29 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  30 /*        All Rights Reserved   */
  31
  32
  33 #include <sys/param.h>
  34 #include <sys/types.h>
  35 #include <sys/sysmacros.h>
  36 #include <sys/systm.h>
  37 #include <sys/errno.h>
  38 #include <sys/utsname.h>
  39 #include <sys/debug.h>
  40 #include <sys/proc.h>
  41 #include <sys/user.h>
  42
  43 int
  44 uname(struct utsname *buf)
  45 {
  46         const char *name_to_use = uts_nodename();
  47
  48         if (copyout(utsname.sysname, buf->sysname, strlen(utsname.sysname) + 1))
  49                 return (set_errno(EFAULT));
  50
  51         if (copyout(name_to_use, buf->nodename, strlen(name_to_use)+1))
  52                 return (set_errno(EFAULT));
  53
  54         if (copyout(utsname.release, buf->release, strlen(utsname.release) + 1))
  55                 return (set_errno(EFAULT));
  56
  57         if (copyout(utsname.version, buf->version, strlen(utsname.version) + 1))
  58                 return (set_errno(EFAULT));
  59
  60         if (copyout(utsname.machine, buf->machine, strlen(utsname.machine) + 1))
  61                 return (set_errno(EFAULT));
  62
  63         return (0);
  64 }