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Annotation of Net2/kern/kern_xxx.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
        !             3:  * 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:  *     @(#)kern_xxx.c  7.17 (Berkeley) 4/20/91
        !            34:  */
        !            35: 
        !            36: #include "param.h"
        !            37: #include "systm.h"
        !            38: #include "kernel.h"
        !            39: #include "proc.h"
        !            40: #include "reboot.h"
        !            41: 
        !            42: /* ARGSUSED */
        !            43: gethostid(p, uap, retval)
        !            44:        struct proc *p;
        !            45:        void *uap;
        !            46:        long *retval;
        !            47: {
        !            48: 
        !            49:        *retval = hostid;
        !            50:        return (0);
        !            51: }
        !            52: 
        !            53: /* ARGSUSED */
        !            54: sethostid(p, uap, retval)
        !            55:        struct proc *p;
        !            56:        struct args {
        !            57:                long    hostid;
        !            58:        } *uap;
        !            59:        int *retval;
        !            60: {
        !            61:        int error;
        !            62: 
        !            63:        if (error = suser(p->p_ucred, &p->p_acflag))
        !            64:                return (error);
        !            65:        hostid = uap->hostid;
        !            66:        return (0);
        !            67: }
        !            68: 
        !            69: /* ARGSUSED */
        !            70: gethostname(p, uap, retval)
        !            71:        struct proc *p;
        !            72:        struct args {
        !            73:                char    *hostname;
        !            74:                u_int   len;
        !            75:        } *uap;
        !            76:        int *retval;
        !            77: {
        !            78: 
        !            79:        if (uap->len > hostnamelen + 1)
        !            80:                uap->len = hostnamelen + 1;
        !            81:        return (copyout((caddr_t)hostname, (caddr_t)uap->hostname, uap->len));
        !            82: }
        !            83: 
        !            84: /* ARGSUSED */
        !            85: sethostname(p, uap, retval)
        !            86:        struct proc *p;
        !            87:        register struct args {
        !            88:                char    *hostname;
        !            89:                u_int   len;
        !            90:        } *uap;
        !            91:        int *retval;
        !            92: {
        !            93:        int error;
        !            94: 
        !            95:        if (error = suser(p->p_ucred, &p->p_acflag))
        !            96:                return (error);
        !            97:        if (uap->len > sizeof (hostname) - 1)
        !            98:                return (EINVAL);
        !            99:        hostnamelen = uap->len;
        !           100:        error = copyin((caddr_t)uap->hostname, hostname, uap->len);
        !           101:        hostname[hostnamelen] = 0;
        !           102:        return (error);
        !           103: }
        !           104: 
        !           105: /* ARGSUSED */
        !           106: reboot(p, uap, retval)
        !           107:        struct proc *p;
        !           108:        struct args {
        !           109:                int     opt;
        !           110:        } *uap;
        !           111:        int *retval;
        !           112: {
        !           113:        int error;
        !           114: 
        !           115:        if (error = suser(p->p_ucred, &p->p_acflag))
        !           116:                return (error);
        !           117:        boot(uap->opt);
        !           118:        return (0);
        !           119: }
        !           120: 
        !           121: #ifdef COMPAT_43
        !           122: oquota()
        !           123: {
        !           124: 
        !           125:        return (ENOSYS);
        !           126: }
        !           127: #endif

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