eudora-mac/header.c

/* Copyright (c) 2017, Computer History Museum 
All rights reserved. 
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 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 
 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
   disclaimer in the documentation and/or other materials provided with the distribution. 
 * Neither the name of Computer History Museum nor the names of its contributors may be used to endorse or promote products 
   derived from this software without specific prior written permission. 
NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE 
COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 
DAMAGE. */

#include "header.h"
#define FILE_NUM 56
/* Copyright (c) 1993 by QUALCOMM Incorporated */
/************************************************************************
 * higher analysis of RFC 822 headers  (Blech)
 ************************************************************************/

#pragma segment Headers

	Token822Enum WriteHeaderToken(Token822Enum tokenType, L822SPtr l822p, AccuPtr a);
	OSErr AddHeaderAttribute(HeaderDPtr (*hdh), PStr value, Boolean etl);
	OSErr AddFunField(HeaderDPtr (*hdh), PStr value, short funFieldsID);
	void TextPlain(HeaderDHandle hdh);

void Ungrok(HeaderDHandle hdh);
void Ungrok(HeaderDHandle hdh)
{
	// we do not full understand this header block
	(*hdh)->grokked = False;
}

#define OkStateAtWhichToEnd(s) ((s)==ExpectText || (s)==ExpectSem || (s)==ExpectVersion || (s)==ExpectStructuredValue)
/************************************************************************
 * ReadHeader - read a header block
 ************************************************************************/
OSErr ReadHeader(TransStream stream, HeaderDHandle hdh, long estSize, short refN,Boolean isDigest)
{
	return ReadHeaderLo(stream, hdh, estSize, refN, isDigest, InterestHeadStrn, InterestHeadLimit);
}

OSErr ReadHeaderLo(TransStream stream, HeaderDHandle hdh, long estSize, short refN,Boolean isDigest, short funFieldsID, short funFieldsLimit)
{
#pragma unused(estSize)
	short err;
	Str31 interesting[InterestHeadLimit+1];
	Str31 scratch;
	short h;
	Boolean junk;
	Lex822State l822s;
	Token822Enum tokenType;
	Handle grumble;
	long lastNewline;
	long lastParam;
	AttributeEnum attr;
#ifndef SAVE_MIME
	short defaultTableId;
	short xlateResID;
#endif
	Accumulator fullHeaders;
	long hash;
	Accumulator a;
		
#define EXPECT_TEXT do{l822s.state = CollectText; (*hdh)->state = ExpectText;}while(0)

#ifndef SAVE_MIME
	defaultTableId = GetPrefLong(PREF_IN_XLATE);
	if (!defaultTableId) defaultTableId = TRANS_IN_TABL;
#endif
	
	if(funFieldsLimit > InterestHeadLimit)
		return paramErr;
	
	/*
	 * grab the interesting header labels
	 */
	for (h=1;h<funFieldsLimit;h++)
		GetRString(interesting[h],funFieldsID+h);
	
	if (err=AccuInit(&a)) {WarnUser(MEM_ERR,MemError());return(ErrorToken);}
	
	/*
	 * initialize the attribute array
	 */
	ZapHandle((*hdh)->contentAttributes);
	if (!(grumble = (void*)AANew(GetRLong(MIME_ATTR_MAX),GetRLong(MIME_VAL_MAX))))
	{
		AccuZap(a);
		WarnUser(MEM_ERR,MemError());
		return(ErrorTok