The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/kern/kern_xxx.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
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    1 /*
    2  * Copyright (c) 1982, 1986, 1989, 1993
    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. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
   30  * $FreeBSD: src/sys/kern/kern_xxx.c,v 1.31 1999/08/28 00:46:15 peter Exp $
   31  * $DragonFly: src/sys/kern/kern_xxx.c,v 1.10 2006/06/05 07:26:10 dillon Exp $
   32  */
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/sysproto.h>
   37 #include <sys/kernel.h>
   38 #include <sys/proc.h>
   39 #include <sys/priv.h>
   40 #include <sys/sysctl.h>
   41 #include <sys/utsname.h>
   42 
   43 struct lwkt_token domain_token = LWKT_TOKEN_INITIALIZER(domain_token);
   44 
   45 int
   46 sys_uname(struct uname_args *uap)
   47 {
   48         int name[2], rtval;
   49         size_t len;
   50         char *s, *us;
   51 
   52         name[0] = CTL_KERN;
   53         name[1] = KERN_OSTYPE;
   54         len = sizeof uap->name->sysname;
   55         rtval = userland_sysctl(name, 2, uap->name->sysname, &len, 
   56                                 1, 0, 0, 0);
   57         if (rtval)
   58                 goto done;
   59         subyte(uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
   60 
   61         name[1] = KERN_HOSTNAME;
   62         len = sizeof uap->name->nodename;
   63         rtval = userland_sysctl(name, 2, uap->name->nodename, &len, 
   64                                 1, 0, 0, 0);
   65         if (rtval)
   66                 goto done;
   67         subyte(uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
   68 
   69         name[1] = KERN_OSRELEASE;
   70         len = sizeof uap->name->release;
   71         rtval = userland_sysctl(name, 2, uap->name->release, &len, 
   72                                 1, 0, 0, 0);
   73         if (rtval)
   74                 goto done;
   75         subyte(uap->name->release + sizeof(uap->name->release) - 1, 0);
   76 
   77 /*
   78         name = KERN_VERSION;
   79         len = sizeof uap->name->version;
   80         rtval = userland_sysctl(name, 2, uap->name->version, &len, 
   81                                 1, 0, 0, 0);
   82         if (rtval)
   83                 goto done;
   84         subyte(uap->name->version + sizeof(uap->name->version) - 1, 0);
   85 */
   86 
   87 /*
   88  * this stupid hackery to make the version field look like FreeBSD 1.1
   89  */
   90         for(s = version; *s && *s != '#'; s++);
   91 
   92         for(us = uap->name->version; *s && *s != ':'; s++) {
   93                 rtval = subyte( us++, *s);
   94                 if (rtval)
   95                         goto done;
   96         }
   97         rtval = subyte( us++, 0);
   98         if (rtval)
   99                 goto done;
  100 
  101         name[0] = CTL_HW;
  102         name[1] = HW_MACHINE;
  103         len = sizeof uap->name->machine;
  104         rtval = userland_sysctl(name, 2, uap->name->machine, &len, 
  105                                 1, 0, 0, 0);
  106         if (rtval)
  107                 goto done;
  108         rtval = subyte(uap->name->machine + sizeof(uap->name->machine) - 1, 0);
  109 done:
  110         return rtval;
  111 }
  112 
  113 int
  114 sys_getdomainname(struct getdomainname_args *uap)
  115 {
  116         int domainnamelen;
  117         int error;
  118 
  119         lwkt_gettoken_shared(&domain_token);
  120         domainnamelen = strlen(domainname) + 1;
  121         if ((u_int)uap->len > domainnamelen + 1)
  122                 uap->len = domainnamelen + 1;
  123         error = copyout(domainname, uap->domainname, uap->len);
  124         lwkt_reltoken(&domain_token);
  125         return (error);
  126 }
  127 
  128 int
  129 sys_setdomainname(struct setdomainname_args *uap)
  130 {
  131         struct thread *td = curthread;
  132         int error, domainnamelen;
  133 
  134         if ((error = priv_check(td, PRIV_SETDOMAINNAME)))
  135                 return (error);
  136         if ((u_int)uap->len > sizeof(domainname) - 1)
  137                 return EINVAL;
  138         lwkt_gettoken(&domain_token);
  139 
  140         domainnamelen = uap->len;
  141         error = copyin(uap->domainname, domainname, uap->len);
  142         domainname[domainnamelen] = 0;
  143 
  144         lwkt_reltoken(&domain_token);
  145         return (error);
  146 }

Cache object: 9c3dad3c897fd6f957261312dfddc2e1


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