Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shogun!mike
From: mike@shogun.cc.umich.edu (Michael Nowak)
Newsgroups: comp.sys.mac
Subject: Re: C source examples of the new preferred AppleTalk interface?
Message-ID: <893@mailrus.cc.umich.edu>
Date: 29 Jan 89 16:49:12 GMT
References: <888@mailrus.cc.umich.edu>
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Reply-To: mike@shogun.cc.umich.edu (Michael Nowak)
Organization: University of Michigan Computing Center, Ann Arbor
Lines: 41
UUCP-Path: mailrus!shogun!mike

I've had several messages in the mail, many from people who are interested
in the same topic.  I've also received some related examples but none using
PLookupName().  LKet me state specifically what I am doing, in hopes that
someone will see the error of my ways.  Here's what the call to PLookupName()
looks like:

	search_name.objStr[0] = 0x01;
	search_name.objStr[1] = '=';
	search_name.typeStr[0] = 0x01;
	search_name.typeStr[1] = '=';
	search_name.zoneStr[0] = 0x01;
	search_name.zoneStr[1] = '*';
	
	mpp_pb_ptr = (MPPPBptr)NewPtr(sizeof(MPPParamBlock));
	if (mpp_pb_ptr == (MPPPBptr)0) {
		err_code = app_memoryErr;
		goto nomppptr;
	}
	
	mpp_pb_ptr->ioCompletion = (ProcPtr)0;
	mpp_pb_ptr->NBPentityPtr = (Ptr)&search_name;
	mpp_pb_ptr->NBPretBuffPtr = (Ptr)entity_buffer;
	mpp_pb_ptr->NBPretBuffSize = 1080;
	mpp_pb_ptr->NBPmaxToGet = 10;
	mpp_pb_ptr->NBPinterval = 8;
	mpp_pb_ptr->NBPcount = 3;
		
	err_code = PLookupName(mpp_pb_ptr, false);

entity_buffer is defined as char entity_buffer[1080].  I originally
tried using NBPSetEntity to set up search_name but have used this surer
approach to cut down on places where I could mess up.  The code crashes
in the PLookupName call, with an odd address exception at 0x4345a0.

Any advice would be appreciated.
 -----------------------------------------------------------------------------
 Michael Nowak                                          ...mailrus!shogun!mike
 Workstation Consultant                               mike@shogun.cc.umich.edu
 U of M Computing Center User Services              Mike_Nowak@um.cc.umich.edu

    ...working for but in no way representing the University of Michigan...