mDNSMacOS9/mDNSLibraryLoader.c

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24
  25     Change History (most recent first):
  26
  27 $Log: mDNSLibraryLoader.c,v $
  28 Revision 1.1  2004/03/12 21:30:26  cheshire
  29 Build a System-Context Shared Library from mDNSCore, for the benefit of developers
  30 like Muse Research who want to be able to use mDNS/DNS-SD from GPL-licensed code.
  31
  32  */
  33
  34 #include <Resources.h>
  35 #include <CodeFragments.h>
  36 #include "ShowInitIcon.h"
  37
  38 extern pascal OSErr FragRegisterFileLibs(ConstFSSpecPtr fss, Boolean unregister);
  39
  40 extern void main(void)
  41         {
  42         OSStatus err;
  43         FCBPBRec fcbPB;
  44         FSSpec fss;
  45
  46         // 1. Show our "icon march" icon
  47         ShowInitIcon(128, true);
  48
  49         // 2. Find our FSSpec
  50         fss.name[0] = 0;
  51         fcbPB.ioNamePtr = fss.name;
  52         fcbPB.ioVRefNum = 0;
  53         fcbPB.ioRefNum = (short)CurResFile();
  54         fcbPB.ioFCBIndx = 0;
  55         err = PBGetFCBInfoSync(&fcbPB);
  56
  57         // 3. Tell CFM that we're a CFM library container file
  58         fss.vRefNum = fcbPB.ioFCBVRefNum;
  59         fss.parID = fcbPB.ioFCBParID;
  60         if (err == noErr) err = FragRegisterFileLibs(&fss, false);
  61
  62         // 4. Now that CFM knows we're a library container, tell it to go and get our library
  63         if (err == noErr)
  64                 {
  65                 CFragConnectionID c;
  66                 Ptr m;
  67                 Str255 e;
  68                 THz oldZone = GetZone();
  69                 SetZone(SystemZone());
  70                 err = GetSharedLibrary("\pDarwin;mDNS", kPowerPCCFragArch, kLoadCFrag, &c, &m, e);
  71                 SetZone(oldZone);
  72                 }
  73         }
  74
  75 // There's no CFM stub library for the FragRegisterFileLibs() call, so we'll make our own
  76 #if __ide_target("FragRegisterFileLibsStub")
  77 #pragma export on
  78 pascal OSErr FragRegisterFileLibs(ConstFSSpecPtr fss, Boolean unregister)
  79         {
  80         (void)fss;                      // Unused
  81         (void)unregister;       // Unused
  82         return(0);
  83         }
  84 #endif