NetBSD/sys/kern/kern_xxx.c

244 lines
5.3 KiB
C

/*
* Copyright (c) 1982, 1986, 1989 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.
*
* from: @(#)kern_xxx.c 7.17 (Berkeley) 4/20/91
* $Id: kern_xxx.c,v 1.12 1994/03/18 18:57:15 mycroft Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/utsname.h>
/* ARGSUSED */
int
gethostid(p, uap, retval)
struct proc *p;
void *uap;
long *retval;
{
*retval = hostid;
return (0);
}
struct sethostid_args {
long hostid;
};
/* ARGSUSED */
int
sethostid(p, uap, retval)
struct proc *p;
struct sethostid_args *uap;
int *retval;
{
int error;
if (error = suser(p->p_ucred, &p->p_acflag))
return (error);
hostid = uap->hostid;
return (0);
}
struct gethostname_args {
char *hostname;
u_int len;
};
/* ARGSUSED */
int
gethostname(p, uap, retval)
struct proc *p;
struct gethostname_args *uap;
int *retval;
{
if (uap->len > hostnamelen + 1)
uap->len = hostnamelen + 1;
return (copyout((caddr_t)hostname, (caddr_t)uap->hostname, uap->len));
}
struct sethostname_args {
char *hostname;
u_int len;
};
/* ARGSUSED */
int
sethostname(p, uap, retval)
struct proc *p;
register struct sethostname_args *uap;
int *retval;
{
int error;
if (error = suser(p->p_ucred, &p->p_acflag))
return (error);
if (uap->len > sizeof (hostname) - 1)
return (EINVAL);
hostnamelen = uap->len;
error = copyin((caddr_t)uap->hostname, hostname, uap->len);
hostname[hostnamelen] = 0;
return (error);
}
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);
}
struct uname_args {
struct utsname *name;
};
/* ARGSUSED */
int
uname(p, uap, retval)
struct proc *p;
struct uname_args *uap;
int *retval;
{
strncpy(utsname.nodename, hostname, sizeof(utsname.nodename)-1);
return (copyout((caddr_t)&utsname, (caddr_t)uap->name,
sizeof(struct utsname)));
}
struct reboot_args {
int opt;
};
/* ARGSUSED */
int
reboot(p, uap, retval)
struct proc *p;
struct reboot_args *uap;
int *retval;
{
int error;
if (error = suser(p->p_ucred, &p->p_acflag))
return (error);
boot(uap->opt);
return (0);
}
#ifdef COMPAT_43
int
oquota()
{
return (ENOSYS);
}
#endif
#ifdef SYSCALL_DEBUG
int scdebug = 1; /* XXX */
void
scdebug_call(p, code, narg, args)
struct proc *p;
int code, narg, *args;
{
int i;
if (!scdebug)
return;
printf("proc %d: syscall ", p->p_pid);
if (code < 0 || code >= nsysent) {
printf("OUT OF RANGE (%d)", code);
code = 0;
} else
printf("%d", code);
printf(" called: %s(", syscallnames[code]);
for (i = 0; i < narg; i++)
printf("0x%x, ", args[i]);
printf(")\n");
}
void
scdebug_ret(p, code, error, retval)
struct proc *p;
int code, error, retval;
{
if (!scdebug)
return;
printf("proc %d: syscall ", p->p_pid);
if (code < 0 || code >= nsysent) {
printf("OUT OF RANGE (%d)", code);
code = 0;
} else
printf("%d", code);
printf(" return: error = %d, retval = %d\n", error, retval);
}
#endif /* SYSCALL_DEBUG */