/*- * 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. * 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 */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include "opt_compat.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/sysproto.h> #include <sys/kernel.h> #include <sys/priv.h> #include <sys/proc.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/sysctl.h> #include <sys/utsname.h> #if defined(COMPAT_43) #ifndef _SYS_SYSPROTO_H_ struct gethostname_args { char *hostname; u_int len; }; #endif /* ARGSUSED */ int ogethostname(td, uap) struct thread *td; struct gethostname_args *uap; { int name[2]; int error; size_t len = uap->len; name[0] = CTL_KERN; name[1] = KERN_HOSTNAME; mtx_lock(&Giant); error = userland_sysctl(td, name, 2, uap->hostname, &len, 1, 0, 0, 0, 0); mtx_unlock(&Giant); return(error); } #ifndef _SYS_SYSPROTO_H_ struct sethostname_args { char *hostname; u_int len; }; #endif /* ARGSUSED */ int osethostname(td, uap) struct thread *td; register struct sethostname_args *uap; { int name[2]; int error; name[0] = CTL_KERN; name[1] = KERN_HOSTNAME; mtx_lock(&Giant); error = userland_sysctl(td, name, 2, 0, 0, 0, uap->hostname, uap->len, 0, 0); mtx_unlock(&Giant); return (error); } #ifndef _SYS_SYSPROTO_H_ struct ogethostid_args { int dummy; }; #endif /* ARGSUSED */ int ogethostid(td, uap) struct thread *td; struct ogethostid_args *uap; { *(long *)(td->td_retval) = hostid; return (0); } #endif /* COMPAT_43 */ #ifdef COMPAT_43 #ifndef _SYS_SYSPROTO_H_ struct osethostid_args { long hostid; }; #endif /* ARGSUSED */ int osethostid(td, uap) struct thread *td; struct osethostid_args *uap; { int error; error = priv_check(td, PRIV_SETHOSTID); if (error) return (error); mtx_lock(&Giant); hostid = uap->hostid; mtx_unlock(&Giant); return (0); } int oquota(td, uap) struct thread *td; struct oquota_args *uap; { return (ENOSYS); } #endif /* COMPAT_43 */ /* * This is the FreeBSD-1.1 compatable uname(2) interface. These days it is * done in libc as a wrapper around a bunch of sysctl's. This must maintain * the old 1.1 binary ABI. */ #if SYS_NMLN != 32 #error "FreeBSD-1.1 uname syscall has been broken" #endif #ifndef _SYS_SYSPROTO_H_ struct uname_args { struct utsname *name; }; #endif /* ARGSUSED */ int uname(td, uap) struct thread *td; struct uname_args *uap; { int name[2], error; size_t len; char *s, *us; name[0] = CTL_KERN; name[1] = KERN_OSTYPE; len = sizeof (uap->name->sysname); mtx_lock(&Giant); error = userland_sysctl(td, name, 2, uap->name->sysname, &len, 1, 0, 0, 0, 0); if (error) goto done2; subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0); name[1] = KERN_HOSTNAME; len = sizeof uap->name->nodename; error = userland_sysctl(td, name, 2, uap->name->nodename, &len, 1, 0, 0, 0, 0); if (error) goto done2; subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0); name[1] = KERN_OSRELEASE; len = sizeof uap->name->release; error = userland_sysctl(td, name, 2, uap->name->release, &len, 1, 0, 0, 0, 0); if (error) goto done2; subyte( uap->name->release + sizeof(uap->name->release) - 1, 0); /* name = KERN_VERSION; len = sizeof uap->name->version; error = userland_sysctl(td, name, 2, uap->name->version, &len, 1, 0, 0, 0, 0); if (error) goto done2; 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++) { error = subyte( us++, *s); if (error) goto done2; } error = subyte( us++, 0); if (error) goto done2; name[0] = CTL_HW; name[1] = HW_MACHINE; len = sizeof uap->name->machine; error = userland_sysctl(td, name, 2, uap->name->machine, &len, 1, 0, 0, 0, 0); if (error) goto done2; subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0); done2: mtx_unlock(&Giant); return (error); } #ifndef _SYS_SYSPROTO_H_ struct getdomainname_args { char *domainname; int len; }; #endif /* ARGSUSED */ int getdomainname(td, uap) struct thread *td; struct getdomainname_args *uap; { char tmpdomainname[MAXHOSTNAMELEN]; int domainnamelen; mtx_lock(&hostname_mtx); bcopy(domainname, tmpdomainname, sizeof(tmpdomainname)); mtx_unlock(&hostname_mtx); domainnamelen = strlen(tmpdomainname) + 1; if ((u_int)uap->len > domainnamelen) uap->len = domainnamelen; return (copyout(tmpdomainname, uap->domainname, uap->len)); } #ifndef _SYS_SYSPROTO_H_ struct setdomainname_args { char *domainname; int len; }; #endif /* ARGSUSED */ int setdomainname(td, uap) struct thread *td; struct setdomainname_args *uap; { char tmpdomainname[MAXHOSTNAMELEN]; int error, domainnamelen; error = priv_check(td, PRIV_SETDOMAINNAME); if (error) return (error); if ((u_int)uap->len > sizeof(tmpdomainname) - 1) return (EINVAL); domainnamelen = uap->len; error = copyin(uap->domainname, tmpdomainname, uap->len); if (error == 0) { tmpdomainname[domainnamelen] = 0; mtx_lock(&hostname_mtx); bcopy(tmpdomainname, domainname, sizeof(domainname)); mtx_unlock(&hostname_mtx); } return (error); }