mDNSMacOS9/mDNSLibraryLoader.c

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