/*							HTVMS_WAISUI.h
 *
 *	Adaptation for Lynx by F.Macrides (macrides@sci.wfeb.edu)
 *
 *	31-May-1994 FM	Initial version.
 */

#ifndef HTVMSWAIS_H
#define HTVMSWAIS_H

#ifndef HTUTILS_H
#include <HTUtils.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif
    void log_write(char *);

/*
 *	Routines originally from Panic.h -- FM
 *
 *----------------------------------------------------------------------*/

    void panic(char *format,...);

/*----------------------------------------------------------------------*/

/*
 *	Routines originally from CUtil.h -- FM
 *
 *----------------------------------------------------------------------*/

/* types and constants */

#ifndef boolean
#define boolean unsigned long
#endif				/* boolean */

#ifndef true
#define true	(boolean)1L
#endif				/* true */

#ifndef false
#define false	(boolean)0L	/* used to be (!true), but broke
				   some compilers */
#endif				/* false */

#ifndef TRUE
#define TRUE	true
#endif				/* TRUE */

#ifndef FALSE
#define FALSE	false
#endif				/* FALSE */

/*----------------------------------------------------------------------*/
/* functions */

/* enhanced memory handling functions - don't call them directly, use the
   macros below */
    void fs_checkPtr(void *ptr);
    void *fs_malloc(size_t size);
    void *fs_realloc(void *ptr, size_t size);
    void fs_free(void *ptr);
    char *fs_strncat(char *dst, char *src, size_t maxToAdd, size_t maxTotal);

/* macros for memory functions.  call these in your program.  */
#define s_checkPtr(ptr)		fs_checkPtr(ptr)
#define s_malloc(size)		fs_malloc(size)
#define s_realloc(ptr,size)	fs_realloc((ptr),(size))
#define s_free(ptr)		{ fs_free((char*)ptr); ptr = NULL; }
#define s_strncat(dst,src,maxToAdd,maxTotal)	fs_strncat((dst),(src),(maxToAdd),(maxTotal))

    char *s_strdup(char *s);

#define IS_DELIMITER	1
#define	NOT_DELIMITER	!IS_DELIMITER

    char char_downcase(unsigned long ch);
    char *string_downcase(char *word);

/*----------------------------------------------------------------------*/

/*
 *	Routines originally from ZUtil.c -- FM
 *
 *----------------------------------------------------------------------*/

/* Data types / constants */

/* bytes to leave for the header size info */
#define HEADER_LEN	(size_t)2

    typedef long pdu_type;

#define	initAPDU			(pdu_type)20
#define	initResponseAPDU		(pdu_type)21
#define	searchAPDU			(pdu_type)22
#define	searchResponseAPDU		(pdu_type)23
#define	presentAPDU			(pdu_type)24
#define	presentResponseAPDU		(pdu_type)25
#define	deteteAPDU			(pdu_type)26
#define	deleteResponseAPDU		(pdu_type)27
#define	accessControlAPDU		(pdu_type)28
#define	accessControlResponseAPDU	(pdu_type)29
#define	resourceControlAPDU		(pdu_type)30
#define	resourceControlResponseAPDU	(pdu_type)31

    typedef struct any {	/* an any is a non-ascii string of characters */
	unsigned long size;
	char *bytes;
    } any;

    typedef any bit_map;	/* a bit_map is a group of packed bits */

    typedef unsigned long data_tag;

#define DT_PDUType			(data_tag)1
#define	DT_ReferenceID			(data_tag)2
#define	DT_ProtocolVersion		(data_tag)3
#define	DT_Options			(data_tag)4
#define	DT_PreferredMessageSize		(data_tag)5
#define	DT_MaximumRecordSize		(data_tag)6
#define	DT_IDAuthentication		(data_tag)7
#define	DT_ImplementationID		(data_tag)8
#define	DT_ImplementationName		(data_tag)9
#define	DT_ImplementationVersion	(data_tag)10
#define	DT_UserInformationField		(data_tag)11
#define	DT_Result			(data_tag)12
#define	DT_SmallSetUpperBound		(data_tag)13
#define	DT_LargeSetLowerBound		(data_tag)14
#define	DT_MediumSetPresentNumber	(data_tag)15
#define	DT_ReplaceIndicator		(data_tag)16
#define	DT_ResultSetName		(data_tag)17
#define	DT_DatabaseNames		(data_tag)18
#define DT_ElementSetNames		(data_tag)19
#define	DT_QueryType			(data_tag)20
#define	DT_Query			(data_tag)21
#define	DT_SearchStatus			(data_tag)22
#define	DT_ResultCount			(data_tag)23
#define	DT_NumberOfRecordsReturned	(data_tag)24
#define	DT_NextResultSetPosition	(data_tag)25
#define	DT_ResultSetStatus		(data_tag)26
#define	DT_PresentStatus		(data_tag)27
#define	DT_DatabaseDiagnosticRecords	(data_tag)28
#define	DT_NumberOfRecordsRequested	(data_tag)29
#define	DT_ResultSetStartPosition	(data_tag)30
#define	DT_ResultSetID			(data_tag)31
#define	DT_DeleteOperation		(data_tag)32
#define	DT_DeleteStatus			(data_tag)33
#define	DT_NumberNotDeleted		(data_tag)34
#define	DT_BulkStatuses			(data_tag)35
#define	DT_DeleteMSG			(data_tag)36
#define	DT_SecurityChallenge		(data_tag)37
#define	DT_SecurityChallengeResponse	(data_tag)38
#define	DT_SuspendedFlag		(data_tag)39
#define	DT_ResourceReport		(data_tag)40
#define	DT_PartialResultsAvailable	(data_tag)41
#define	DT_ContinueFlag			(data_tag)42
#define	DT_ResultSetWanted		(data_tag)43

#define UNUSED	-1

/* number of bytes required to represent the following sizes in compressed
   integer format
 */
#define CompressedInt1Byte	128	/* 2 ^ 7 */
#define CompressedInt2Byte	16384	/* 2 ^ 14 */
#define CompressedInt3Byte	2097152		/* 2 ^ 21 */
/* others may follow ... */

/* types of query */
#define QT_0	"0"		/* query whose non-standard format has been agreed upon
				   client and server */
/* values for InitAPDU option element */
#define	WILL_USE		TRUE
#define WILL_NOT_USE		FALSE
#define WILL_SUPPORT		TRUE
#define WILL_NOT_SUPPORT	FALSE

/* values for InitResponseAPDU result element */
#define ACCEPT	TRUE
#define REJECT	FALSE

/* values for SearchResponseAPDU search status element */
#define	SUCCESS	0		/* intuitive huh? */
#define FAILURE	1

/* values for SearchResponseAPDU result set status element */
#define	SUBSET	1
#define INTERIM	2
#define NONE	3

/* values for SearchResponseAPDU present status element */
/* SUCCESS already defined */
#define PARTIAL_1	1
#define PARTIAL_2	2
#define PARTIAL_3	3
#define PARTIAL_4	4
#define PS_NONE		5	/* can't use NONE since it was used by result
				   set status */

#define DIAGNOSTIC_CODE_SIZE	(size_t)3

    typedef struct diagnosticRecord {
	boolean SURROGATE;
	char DIAG[DIAGNOSTIC_CODE_SIZE];
	char *ADDINFO;
    } diagnosticRecord;

#define D_PermanentSystemError	       "S1"
#define D_TemporarySystemError         "S2"
#define D_UnsupportedSearch            "S3"
#define D_TermsOnlyStopWords           "S5"
#define D_TooManyArgumentWords         "S6"
#define D_TooManyBooleanOperators      "S7"
#define D_TooManyTruncatedWords        "S8"
#define D_TooMany IncompleteSubfields  "S9"
#define D_TruncatedWordsTooShort       "SA"
#define D_InvalidFormatForRecordNumber "SB"
#define D_TooManyCharactersInSearch    "SC"
#define D_TooManyRecordsRetrieved      "SD"
#define D_PresentRequestOutOfRange     "SF"
#define D_SystemErrorInPresentRecords  "SG"
#define D_RecordNotAuthorizedToBeSent  "SH"
#define D_RecordExceedsPrefMessageSize "SI"
#define D_RecordExceedsMaxRecordSize   "SJ"
#define D_ResultSetNotSuppAsSearchTerm "SK"
#define D_OnlyOneRsltSetAsSrchTermSupp "SL"
#define D_OnlyANDingOfASnglRsltSetSupp "SM"
#define D_RsltSetExistsNoReplace       "SN"
#define D_ResultSetNamingNotSupported  "SO"
#define D_CombinationDatabasesNotSupp  "SP"
#define D_ElementSetNamesNotSupported  "SQ"
#define D_ElementSetNameNotValid       "SR"
#define D_OnlyASingleElmntSetNameSupp  "SS"
#define D_ResultSetDeletedByTarget     "ST"
#define D_ResultSetIsInUse             "SU"
#define D_DatabasesIsLocked            "SV"
#define D_TerminatedByNoContinueResp   "SW"
#define D_ResultSetDoesNotExist        "SX"
#define D_ResExNoResultsAvailable      "SY"
#define D_ResExUnpredictableResults    "SZ"
#define D_ResExValidSubsetOfResults    "T1"
#define D_AccessControlFailure         "T2"
#define D_SecurityNotIssuedReqTerm     "T3"
#define D_SecurityNotBeIssuedRecNotInc "T4"

/*----------------------------------------------------------------------*/

/* for internal error handling */

    extern char *readErrorPosition;	/* pos where buf stoped making sense */

/* the following are macros so that they can return OUT of the function
   which calls them
 */

#define RETURN_ON_NULL(var)					\
	if (var == NULL)					\
	  return(NULL);		/* jump out of caller */

#define REPORT_READ_ERROR(pos)					\
	{ readErrorPosition = (pos);				\
	  return(NULL); /* jump out of caller */		\
    }

#define CHECK_FOR_SPACE_LEFT(spaceNeeded,spaceLeft)		\
	{ if (*spaceLeft >= spaceNeeded)			\
	    (*spaceLeft) -= spaceNeeded;			\
	  else							\
	   { *spaceLeft = 0;					\
	     return(NULL); /* jump out of the caller */		\
	   }							\
	}

/*----------------------------------------------------------------------*/

    diagnosticRecord *makeDiag(boolean surrogate, char *code, char *addInfo);
    void freeDiag(diagnosticRecord * diag);
    char *writeDiag(diagnosticRecord * diag, char *buffer, long *len);
    char *readDiag(diagnosticRecord ** diag, char *buffer);

    char *writeCompressedInteger(unsigned long num, char *buf, long *len);
    char *readCompressedInteger(unsigned long *num, char *buf);
    char *writeCompressedIntWithPadding(unsigned long num, unsigned long size,
					char *buffer, long *len);
    unsigned long writtenCompressedIntSize(unsigned long num);

    char *writeTag(data_tag tag, char *buf, long *len);
    char *readTag(data_tag *tag, char *buf);
    data_tag peekTag(char *buf);
    unsigned long writtenTagSize(data_tag tag);

    any *makeAny(unsigned long size, char *data);
    void freeAny(any *a);
    any *duplicateAny(any *a);
    char *writeAny(any *a, data_tag tag, char *buffer, long *len);
    char *readAny(any **anAny, char *buffer);
    unsigned long writtenAnySize(data_tag tag, any *a);

    any *stringToAny(char *s);
    char *anyToString(any *a);
    unsigned long writtenStringSize(data_tag tag, char *s);

    any *longToAny(long Num);
    long anyToLong(any *a);

    char *writeString(char *s, data_tag tag, char *buffer, long *len);
    char *readString(char **s, char *buffer);

    bit_map *makeBitMap(unsigned long numBits,...);

    void freeBitMap(bit_map *bm);
    boolean bitAtPos(unsigned long pos, bit_map *bm);
    char *writeBitMap(bit_map *bm, data_tag tag, char *buffer, long *len);
    char *readBitMap(bit_map **bm, char *buffer);

    char *writeByte(unsigned long byte, char *buf, long *len);
    char *readByte(unsigned char *byte, char *buf);

    char *writeBoolean(boolean flag, char *buf, long *len);
    char *readBoolean(boolean *flag, char *buf);

    char *writePDUType(pdu_type pduType, char *buf, long *len);
    char *readPDUType(pdu_type *pduType, char *buf);
    pdu_type peekPDUType(char *buf);

    char *writeBinaryInteger(long num, unsigned long size,
			     char *buf, long *len);
    char *readBinaryInteger(long *num, unsigned long size, char *buf);
    unsigned long writtenCompressedBinIntSize(long num);

    char *writeNum(long num, data_tag tag, char *buffer, long *len);
    char *readNum(long *num, char *buffer);
    unsigned long writtenNumSize(data_tag tag, long num);

    void doList(void **list, void (*func) (void *));

    char *writeProtocolVersion(char *buf, long *len);
    char *defaultImplementationID(void);
    char *defaultImplementationName(void);
    char *defaultImplementationVersion(void);

/*----------------------------------------------------------------------*/

/*
 *	Routines originally from ZType1.c -- FM
 *
 *----------------------------------------------------------------------*/

/* This file implements the type 1 query defined in appendices B & C
   of the SR 1 spec.
 */

/*----------------------------------------------------------------------*/
/* types and constants */

/* new data tags */
#define	DT_AttributeList	(data_tag)44
#define DT_Term			(data_tag)45
#define DT_Operator		(data_tag)46

#define QT_BooleanQuery	"1"	/* standard boolean query */

/* general attribute code - use in place of any attribute */
#define IGNORE			"ig"

/* use value codes */
#define	UV_ISBN			"ub"
#define	CORPORATE_NAME		"uc"
#define	ISSN			"us"
#define	PERSONAL_NAME		"up"
#define	SUBJECT			"uj"
#define	TITLE			"ut"
#define	GEOGRAPHIC_NAME		"ug"
#define	CODEN			"ud"
#define	SUBJECT_SUBDIVISION	"ue"
#define	SERIES_TITLE		"uf"
#define	MICROFORM_GENERATION	"uh"
#define	PLACE_OF_PUBLICATION	"ui"
#define	NUC_CODE		"uk"
#define	LANGUAGE		"ul"
#define	COMBINATION_OF_USE_VALUES	"um"
#define	SYSTEM_CONTROL_NUMBER	"un"
#define	DATE			"uo"
#define	LC_CONTROL_NUMBER	"ur"
#define	MUSIC_PUBLISHERS_NUMBER	"uu"
#define	GOVERNMENT_DOCUMENTS_NUMBER	"uv"
#define	SUBJECT_CLASSIFICATION	"uw"
#define	RECORD_TYPE		"uy"

/* relation value codes */
#define	EQUAL			"re"
#define	GREATER_THAN		"rg"
#define	GREATER_THAN_OR_EQUAL	"ro"
#define	LESS_THAN		"rl"
#define	LESS_THAN_OR_EQUAL	"rp"
#define	NOT_EQUAL		"rn"

/* position value codes */
#define	FIRST_IN_FIELD		"pf"
#define	FIRST_IN_SUBFIELD	"ps"
#define	FIRST_IN_A_SUBFIELD	"pa"
#define	FIRST_IN_NOT_A_SUBFIELD	"pt"
#define	ANY_POSITION_IN_FIELD	"py"

/* structure value codes */
#define	PHRASE			"sp"
#define	WORD			"sw"
#define	KEY			"sk"
#define	WORD_LIST		"sl"

/* truncation value codes */
#define	NO_TRUNCATION		"tn"
#define	RIGHT_TRUNCATION	"tr"
#define	PROC_NUM_INCLUDED_IN_SEARCH_ARG	"ti"

/* completeness value codes */
#define	INCOMPLETE_SUBFIELD	"ci"
#define	COMPLETE_SUBFIELD	"cs"
#define	COMPLETEFIELD		"cf"

/* operator codes */
#define AND	"a"
#define OR	"o"
#define AND_NOT	"n"

/* term types */
#define TT_Attribute		1
#define	TT_ResultSetID		2
#define	TT_Operator		3

#define ATTRIBUTE_SIZE		3
#define OPERATOR_SIZE		2

    typedef struct query_term {
	/* type */
	long TermType;
	/* for term */
	char Use[ATTRIBUTE_SIZE + 1];
	char Relation[ATTRIBUTE_SIZE + 1];
	char Position[ATTRIBUTE_SIZE + 1];
	char Structure[ATTRIBUTE_SIZE + 1];
	char Truncation[ATTRIBUTE_SIZE + 1];
	char Completeness[ATTRIBUTE_SIZE + 1];
	any *Term;
	/* for result set */
	any *ResultSetID;
	/* for operator */
	char Operator[OPERATOR_SIZE];
    } query_term;

/*----------------------------------------------------------------------*/
/* functions */

    query_term *makeAttributeTerm(char *use, char *relation, char *position, char *structure,
				  char *truncation, char *completeness, any *term);
    query_term *makeResultSetTerm(any *resultSet);
    query_term *makeOperatorTerm(char *operatorCode);
    void freeTerm(void *qt);
    char *writeQueryTerm(query_term *qt, char *buffer, long *len);
    char *readQueryTerm(query_term **qt, char *buffer);
    any *writeQuery(query_term **terms);
    query_term **readQuery(any *info);

/*----------------------------------------------------------------------*/

/*
 *	Routines originally from UI.c -- FM
 *
 *----------------------------------------------------------------------*/

    char *generate_retrieval_apdu(char *buff,
				  long *buff_len,
				  any *docID,
				  long chunk_type,
				  long start_line, long end_line,
				  char *type,
				  char *database_name);

    long interpret_message(char *request_message,
			   long request_length,
			   char *response_message,
			   long response_buffer_length,		/* length of the buffer (modified) */
			   long connection,
			   boolean verbose);

    char *trim_junk(char *headline);

/*
 *	Routines originally from ZProt.c -- FM
 *
 *----------------------------------------------------------------------*/

/* APDU types */

    typedef struct InitAPDU {
	pdu_type PDUType;
	boolean willSearch, willPresent, willDelete;
	boolean supportAccessControl, supportResourceControl;
	long PreferredMessageSize;
	long MaximumRecordSize;
	char *IDAuthentication;
	char *ImplementationID;
	char *ImplementationName;
	char *ImplementationVersion;
	any *ReferenceID;
	void *UserInformationField;
    } InitAPDU;

    typedef struct InitResponseAPDU {
	pdu_type PDUType;
	boolean Result;
	boolean willSearch, willPresent, willDelete;
	boolean supportAccessControl, supportResourceControl;
	long PreferredMessageSize;
	long MaximumRecordSize;
	char *IDAuthentication;
	char *ImplementationID;
	char *ImplementationName;
	char *ImplementationVersion;
	any *ReferenceID;
	void *UserInformationField;
    } InitResponseAPDU;

    typedef struct SearchAPDU {
	pdu_type PDUType;
	long SmallSetUpperBound;
	long LargeSetLowerBound;
	long MediumSetPresentNumber;
	boolean ReplaceIndicator;
	char *ResultSetName;
	char **DatabaseNames;
	char *QueryType;
	char **ElementSetNames;
	any *ReferenceID;
	void *Query;
    } SearchAPDU;

    typedef struct SearchResponseAPDU {
	pdu_type PDUType;
	long SearchStatus;
	long ResultCount;
	long NumberOfRecordsReturned;
	long NextResultSetPosition;
	long ResultSetStatus;
	long PresentStatus;
	any *ReferenceID;
	void *DatabaseDiagnosticRecords;
    } SearchResponseAPDU;

    typedef struct PresentAPDU {
	pdu_type PDUType;
	long NumberOfRecordsRequested;
	long ResultSetStartPosition;
	char *ResultSetID;
	char *ElementSetNames;
	any *ReferenceID;
	void *PresentInfo;
    } PresentAPDU;

    typedef struct PresentResponseAPDU {
	pdu_type PDUType;
	boolean PresentStatus;
	long NumberOfRecordsReturned;
	long NextResultSetPosition;
	any *ReferenceID;
	void *DatabaseDiagnosticRecords;
    } PresentResponseAPDU;

/*----------------------------------------------------------------------*/
/* Functions */

    InitAPDU *makeInitAPDU(boolean search, boolean present, boolean deleteIt,
			   boolean accessControl, boolean resourceControl, long prefMsgSize,
			   long maxMsgSize,
			   char *auth,
			   char *id,
			   char *name,
			   char *version,
			   any *refID,
			   void *userInfo);
    void freeInitAPDU(InitAPDU * init);
    char *writeInitAPDU(InitAPDU * init, char *buffer, long *len);
    char *readInitAPDU(InitAPDU ** init, char *buffer);

    InitResponseAPDU *makeInitResponseAPDU(boolean result,
					   boolean search,
					   boolean present,
					   boolean deleteIt,
					   boolean accessControl,
					   boolean resourceControl,
					   long prefMsgSize,
					   long maxMsgSize,
					   char *auth,
					   char *id,
					   char *name,
					   char *version,
					   any *refID,
					   void *userInfo);
    void freeInitResponseAPDU(InitResponseAPDU *init);
    char *writeInitResponseAPDU(InitResponseAPDU *init, char *buffer, long *len);
    char *readInitResponseAPDU(InitResponseAPDU **init, char *buffer);
    InitResponseAPDU *replyToInitAPDU(InitAPDU * init, boolean result, void *userInfo);

    SearchAPDU *makeSearchAPDU(long small, long large, long medium,
			       boolean replace, char *name, char **databases,
			       char *type, char **elements, any *refID, void *queryInfo);
    void freeSearchAPDU(SearchAPDU *query);
    char *writeSearchAPDU(SearchAPDU *query, char *buffer, long *len);
    char *readSearchAPDU(SearchAPDU **query, char *buffer);

    SearchResponseAPDU *makeSearchResponseAPDU(long result, long count,
					       long recordsReturned, long nextPos,
					       long resultStatus, long presentStatus,
					       any *refID, void *records);
    void freeSearchResponseAPDU(SearchResponseAPDU *queryResponse);
    char *writeSearchResponseAPDU(SearchResponseAPDU *queryResponse, char
				  *buffer, long *len);
    char *readSearchResponseAPDU(SearchResponseAPDU **queryResponse, char *buffer);

    PresentAPDU *makePresentAPDU(long recsReq, long startPos,
				 char *resultID, any *refID, void *info);
    void freePresentAPDU(PresentAPDU * present);
    char *writePresentAPDU(PresentAPDU * present, char *buffer, long *len);
    char *readPresentAPDU(PresentAPDU ** present, char *buffer);

    PresentResponseAPDU *makePresentResponseAPDU(boolean status, long recsRet,
						 long nextPos, any *refID,
						 void *records);
    void freePresentResponseAPDU(PresentResponseAPDU * present);
    char *writePresentResponseAPDU(PresentResponseAPDU * present, char
				   *buffer, long *len);
    char *readPresentResponseAPDU(PresentResponseAPDU ** present, char *buffer);

/*----------------------------------------------------------------------*/
/* user extension hooks: */

    extern char *writeInitInfo(InitAPDU * init, char *buffer, long *len);
    extern char *readInitInfo(void **info, char *buffer);

    extern char *writeInitResponseInfo(InitResponseAPDU *init, char *buffer, long *len);
    extern char *readInitResponseInfo(void **info, char *buffer);

    extern char *writeSearchInfo(SearchAPDU *query, char *buffer, long *len);
    extern char *readSearchInfo(void **info, char *buffer);

    extern char *writeSearchResponseInfo(SearchResponseAPDU *query, char
					 *buffer, long *len);
    extern char *readSearchResponseInfo(void **info, char *buffer);

    extern char *writePresentInfo(PresentAPDU * present, char *buffer, long *len);
    extern char *readPresentInfo(void **info, char *buffer);

    extern char *writePresentResponseInfo(PresentResponseAPDU * present, char
					  *buffer, long *len);
    extern char *readPresentResponseInfo(void **info, char *buffer);

#ifdef __cplusplus
}
#endif
#endif				/* HTVMSWAIS_H */
