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Annotation of kernel/bsd/netat/aurp_cfg.c, revision 1.1.1.1

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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