SystemConfiguration.fproj/SCDHostName.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 <SystemConfiguration/SystemConfiguration.h>
  24
  25
  26 CFStringRef
  27 SCDKeyCreateHostName()
  28 {
  29         return SCDKeyCreate(CFSTR("%@/%@"),
  30                             kSCCacheDomainSetup,
  31                             kSCCompSystem);
  32 }
  33
  34
  35 SCDStatus
  36 SCDHostNameGet(CFStringRef *name, CFStringEncoding *nameEncoding)
  37 {
  38         CFDictionaryRef dict;
  39         SCDHandleRef    handle  = NULL;
  40         CFStringRef     key;
  41         SCDSessionRef   session = NULL;
  42         SCDStatus       status;
  43
  44         if (name == NULL) {
  45                 return SCD_FAILED;
  46         }
  47
  48         /* get current user */
  49         status = SCDOpen(&session, CFSTR("SCDHostNameGet"));
  50         if (status != SCD_OK) {
  51                 goto done;
  52         }
  53
  54         key = SCDKeyCreateHostName();
  55         status = SCDGet(session, key, &handle);
  56         CFRelease(key);
  57         if (status != SCD_OK) {
  58                 goto done;
  59         }
  60
  61         dict = SCDHandleGetData(handle);
  62
  63         *name = CFDictionaryGetValue(dict, kSCPropSystemComputerName);
  64         if (*name == NULL) {
  65                 goto done;
  66         }
  67         CFRetain(*name);
  68
  69         if (nameEncoding) {
  70                 CFNumberRef     num;
  71
  72                 num = CFDictionaryGetValue(dict,
  73                                            kSCPropSystemComputerNameEncoding);
  74                 if (num) {
  75                         CFNumberGetValue(num, kCFNumberIntType, nameEncoding);
  76                 } else {
  77                         *nameEncoding = CFStringGetSystemEncoding();
  78                 }
  79         }
  80
  81     done :
  82
  83         if (handle)     SCDHandleRelease(handle);
  84         if (session)    (void) SCDClose(&session);
  85         return status;
  86 }