gen/uname.c

   1 /*
   2  * Copyright (c) 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34
  35 #include <sys/param.h>
  36 #include <sys/sysctl.h>
  37 #include <sys/utsname.h>
  38
  39 int
  40 uname(name)
  41         struct utsname *name;
  42 {
  43         int mib[2], rval;
  44         size_t len;
  45         char *p;
  46
  47         rval = 0;
  48
  49         mib[0] = CTL_KERN;
  50         mib[1] = KERN_OSTYPE;
  51         len = sizeof(name->sysname);
  52         if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
  53                 rval = -1;
  54
  55         mib[0] = CTL_KERN;
  56         mib[1] = KERN_HOSTNAME;
  57         len = sizeof(name->nodename);
  58         if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
  59                 rval = -1;
  60
  61         mib[0] = CTL_KERN;
  62         mib[1] = KERN_OSRELEASE;
  63         len = sizeof(name->release);
  64         if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
  65                 rval = -1;
  66
  67         /* The version may have newlines in it, turn them into spaces. */
  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         else
  74                 for (p = name->version; len--; ++p)
  75                         if (*p == '\n' || *p == '\t')
  76                                 if (len > 1)
  77                                         *p = ' ';
  78                                 else
  79                                         *p = '\0';
  80
  81         mib[0] = CTL_HW;
  82         mib[1] = HW_MACHINE;
  83         len = sizeof(name->machine);
  84         if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
  85                 rval = -1;
  86         return (rval);
  87 }