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Annotation of kernel/bsd/netat/aurp_cfg.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  *     Copyright (c) 1996 Apple Computer, Inc. 
        !            27:  *
        !            28:  *     The information contained herein is subject to change without
        !            29:  *     notice and  should not be  construed as a commitment by Apple
        !            30:  *     Computer, Inc. Apple Computer, Inc. assumes no responsibility
        !            31:  *     for any errors that may appear.
        !            32:  *
        !            33:  *     Confidential and Proprietary to Apple Computer, Inc.
        !            34:  *
        !            35:  *     File: cfg.c
        !            36:  */
        !            37: #define RESOLVE_DBG
        !            38: #include <sysglue.h>
        !            39: #include <at/appletalk.h>
        !            40: #include <lap.h>
        !            41: #include <routing_tables.h>
        !            42: #define _AURP
        !            43: #include <at/aurp.h>
        !            44: #include <at_aurp.h>
        !            45: 
        !            46: extern atlock_t aurpgen_lock;
        !            47: static int aurp_inited = 0;
        !            48: static char aurp_minor_no[4];
        !            49: 
        !            50: int aurp_open(gref)
        !            51:        gref_t *gref;
        !            52: {
        !            53:        extern void AURPcmdx();
        !            54:        int i, s;
        !            55: 
        !            56:        if (!aurp_inited) {
        !            57:                aurp_inited = 1;
        !            58:                ATLOCKINIT(aurpgen_lock);
        !            59:        }
        !            60: 
        !            61:        for (i=1; i < sizeof(aurp_minor_no); i++) {
        !            62:                if (aurp_minor_no[i] == 0) {
        !            63:                        aurp_minor_no[i] = (char )i;
        !            64:                        break;
        !            65:                }
        !            66:        }
        !            67:        if (i == sizeof(aurp_minor_no))
        !            68:                return EAGAIN;
        !            69:        if (i == 1) {
        !            70:                aurp_gref = gref;
        !            71:                if (ddp_AURPfuncx(AURPCODE_REG, AURPcmdx, 0)) {
        !            72:                        aurp_gref = 0;
        !            73:                        aurp_minor_no[i] = 0;
        !            74:                        return EPROTO;
        !            75:                }
        !            76:        }
        !            77: 
        !            78:        gref->info = (void *)&aurp_minor_no[i];
        !            79:        return 0;
        !            80: }
        !            81: 
        !            82: int aurp_close(gref)
        !            83:        gref_t *gref;
        !            84: {
        !            85:        if (*(char *)gref->info == 1) {
        !            86:                aurp_gref = 0;
        !            87:                aurp_inited = 0;
        !            88:                ddp_AURPfuncx(AURPCODE_REG, 0, 0);
        !            89:        }
        !            90: 
        !            91:        *(char *)gref->info = 0;
        !            92:        gref->info = 0;
        !            93:        return 0;
        !            94: }

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