mDNSMacOS9/mDNSLibraryLoader.c

   1 /* -*- Mode: C; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16
  17     Change History (most recent first):
  18
  19 $Log: mDNSLibraryLoader.c,v $
  20 Revision 1.2  2006/08/14 23:24:29  cheshire
  21 Re-licensed mDNSResponder daemon source code under Apache License, Version 2.0
  22
  23 Revision 1.1  2004/03/12 21:30:26  cheshire
  24 Build a System-Context Shared Library from mDNSCore, for the benefit of developers
  25 like Muse Research who want to be able to use mDNS/DNS-SD from GPL-licensed code.
  26
  27  */
  28
  29 #include <Resources.h>
  30 #include <CodeFragments.h>
  31 #include "ShowInitIcon.h"
  32
  33 extern pascal OSErr FragRegisterFileLibs(ConstFSSpecPtr fss, Boolean unregister);
  34
  35 extern void main(void)
  36         {
  37         OSStatus err;
  38         FCBPBRec fcbPB;
  39         FSSpec fss;
  40
  41         // 1. Show our "icon march" icon
  42         ShowInitIcon(128, true);
  43
  44         // 2. Find our FSSpec
  45         fss.name[0] = 0;
  46         fcbPB.ioNamePtr = fss.name;
  47         fcbPB.ioVRefNum = 0;
  48         fcbPB.ioRefNum = (short)CurResFile();
  49         fcbPB.ioFCBIndx = 0;
  50         err = PBGetFCBInfoSync(&fcbPB);
  51
  52         // 3. Tell CFM that we're a CFM library container file
  53         fss.vRefNum = fcbPB.ioFCBVRefNum;
  54         fss.parID = fcbPB.ioFCBParID;
  55         if (err == noErr) err = FragRegisterFileLibs(&fss, false);
  56
  57         // 4. Now that CFM knows we're a library container, tell it to go and get our library
  58         if (err == noErr)
  59                 {
  60                 CFragConnectionID c;
  61                 Ptr m;
  62                 Str255 e;
  63                 THz oldZone = GetZone();
  64                 SetZone(SystemZone());
  65                 err = GetSharedLibrary("\pDarwin;mDNS", kPowerPCCFragArch, kLoadCFrag, &c, &m, e);
  66                 SetZone(oldZone);
  67                 }
  68         }
  69
  70 // There's no CFM stub library for the FragRegisterFileLibs() call, so we'll make our own
  71 #if __ide_target("FragRegisterFileLibsStub")
  72 #pragma export on
  73 pascal OSErr FragRegisterFileLibs(ConstFSSpecPtr fss, Boolean unregister)
  74         {
  75         (void)fss;                      // Unused
  76         (void)unregister;       // Unused
  77         return(0);
  78         }
  79 #endif