freebsd-dev/sys/kern/kern_xxx.c

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/*
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
* $Id: kern_xxx.c,v 1.8 1994/10/02 17:35:21 phk Exp $
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*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <vm/vm.h>
#include <sys/sysctl.h>
#include <sys/utsname.h>
#include <sys/signalvar.h>
/* This implements a "TEXT_SET" for cleanup functions */
static void
dummy_cleanup() {}
TEXT_SET(cleanup_set, dummy_cleanup);
typedef void (*cleanup_func_t)(void);
extern const struct linker_set cleanup_set;
static const cleanup_func_t *cleanups =
(const cleanup_func_t *)&cleanup_set.ls_items[0];
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struct reboot_args {
int opt;
};
/* ARGSUSED */
int
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reboot(p, uap, retval)
struct proc *p;
struct reboot_args *uap;
int *retval;
{
int error;
if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
if (!uap->opt & RB_NOSYNC) {
printf("\ncleaning up... ");
while(*cleanups) {
(**cleanups++)();
}
}
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boot(uap->opt);
return (0);
}
#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
struct gethostname_args {
char *hostname;
u_int len;
};
/* ARGSUSED */
int
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ogethostname(p, uap, retval)
struct proc *p;
struct gethostname_args *uap;
int *retval;
{
int name;
name = KERN_HOSTNAME;
return (kern_sysctl(&name, 1, uap->hostname, &uap->len, 0, 0, p));
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}
struct sethostname_args {
char *hostname;
u_int len;
};
/* ARGSUSED */
int
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osethostname(p, uap, retval)
struct proc *p;
register struct sethostname_args *uap;
int *retval;
{
int name;
int error;
if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
name = KERN_HOSTNAME;
return (kern_sysctl(&name, 1, 0, 0, uap->hostname, uap->len, p));
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}
struct gethostid_args {
int dummy;
};
/* ARGSUSED */
int
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ogethostid(p, uap, retval)
struct proc *p;
struct gethostid_args *uap;
int *retval;
{
*(long *)retval = hostid;
return (0);
}
#endif /* COMPAT_43 || COMPAT_SUNOS */
#ifdef COMPAT_43
struct sethostid_args {
long hostid;
};
/* ARGSUSED */
int
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osethostid(p, uap, retval)
struct proc *p;
struct sethostid_args *uap;
int *retval;
{
int error;
if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
hostid = uap->hostid;
return (0);
}
int
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oquota()
{
return (ENOSYS);
}
#endif /* COMPAT_43 */
void
shutdown_nice(void)
{
register struct proc *p;
/* Send a signal to init(8) and have it shutdown the world */
p = pfind(1);
psignal(p, SIGINT);
return;
}
struct uname_args {
struct utsname *name;
};
/* ARGSUSED */
int
uname(p, uap, retval)
struct proc *p;
struct uname_args *uap;
int *retval;
{
int name;
int len;
int rtval;
char *s, *us;
name = KERN_OSTYPE;
len = sizeof uap->name->sysname;
rtval = kern_sysctl(&name, 1, uap->name->sysname, &len, 0, 0, p);
if( rtval) return rtval;
subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
name = KERN_HOSTNAME;
len = sizeof uap->name->nodename;
rtval = kern_sysctl(&name, 1, uap->name->nodename, &len, 0, 0, p);
if( rtval) return rtval;
subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
name = KERN_OSRELEASE;
len = sizeof uap->name->release;
rtval = kern_sysctl(&name, 1, uap->name->release, &len, 0, 0, p);
if( rtval) return rtval;
subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
/*
name = KERN_VERSION;
len = sizeof uap->name->version;
rtval = kern_sysctl(&name, 1, uap->name->version, &len, 0, 0, p);
if( rtval) return rtval;
subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
*/
/*
* this stupid hackery to make the version field look like FreeBSD 1.1
*/
for(s = version; *s && *s != '#'; s++);
for(us = uap->name->version; *s && *s != ':'; s++) {
rtval = subyte( us++, *s);
if( rtval)
return rtval;
}
rtval = subyte( us++, 0);
if( rtval)
return rtval;
name = HW_MACHINE;
len = sizeof uap->name->machine;
rtval = hw_sysctl(&name, 1, uap->name->machine, &len, 0, 0, p);
if( rtval) return rtval;
subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
return 0;
}
struct getdomainname_args {
char *domainname;
u_int len;
};
/* ARGSUSED */
int
getdomainname(p, uap, retval)
struct proc *p;
struct getdomainname_args *uap;
int *retval;
{
if (uap->len > domainnamelen + 1)
uap->len = domainnamelen + 1;
return (copyout((caddr_t)domainname, (caddr_t)uap->domainname, uap->len));
}
struct setdomainname_args {
char *domainname;
u_int len;
};
/* ARGSUSED */
int
setdomainname(p, uap, retval)
struct proc *p;
struct setdomainname_args *uap;
int *retval;
{
int error;
if ((error = suser(p->p_ucred, &p->p_acflag)))
return (error);
if (uap->len > sizeof (domainname) - 1)
return EINVAL;
domainnamelen = uap->len;
error = copyin((caddr_t)uap->domainname, domainname, uap->len);
domainname[domainnamelen] = 0;
return (error);
}