SystemConfiguration.fproj/SCDUnlock.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <mach/mach.h>
  24 #include <mach/mach_error.h>
  25
  26 #include <SystemConfiguration/SCD.h>
  27 #include "config.h"             /* MiG generated file */
  28 #include "SCDPrivate.h"
  29
  30
  31 SCDStatus
  32 SCDUnlock(SCDSessionRef session)
  33 {
  34         SCDSessionPrivateRef    sessionPrivate = (SCDSessionPrivateRef)session;
  35         kern_return_t           status;
  36         SCDStatus               scd_status;
  37
  38         SCDLog(LOG_DEBUG, CFSTR("SCDUnlock:"));
  39
  40         if (session == NULL) {
  41                 return SCD_NOSESSION;           /* you can't do anything without closed session */
  42         }
  43
  44         scd_status = (sessionPrivate->server == MACH_PORT_NULL) ? SCD_NOSESSION : SCD_OK;
  45
  46         if (scd_status == SCD_OK) {
  47                 /* (attempt to) release the servers lock */
  48                 status = configunlock(sessionPrivate->server, (int *)&scd_status);
  49
  50                 if (status != KERN_SUCCESS) {
  51                         if (status != MACH_SEND_INVALID_DEST)
  52                                 SCDLog(LOG_DEBUG, CFSTR("configunlock(): %s"), mach_error_string(status));
  53                         (void) mach_port_destroy(mach_task_self(), sessionPrivate->server);
  54                         sessionPrivate->server = MACH_PORT_NULL;
  55                         return SCD_NOSERVER;
  56                 }
  57         }
  58
  59         return scd_status;
  60 }