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83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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Copyright 2010 BartSimpson aka skindle
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef __TPZ_H
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#define __TPZ_H
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#include <stdio.h>
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#include "skinutils.h"
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typedef struct _TpzCtx {
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unsigned int v[2];
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} TpzCtx;
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void topazCryptoInit(TpzCtx *ctx, unsigned char *key, int klen);
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void topazCryptoDecrypt(TpzCtx *ctx, unsigned char *in, unsigned char *out, int len);
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int bookReadEncodedNumber(FILE *f);
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int encodeNumber(int number, unsigned char *out);
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char *bookReadString(FILE *f);
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typedef struct _Payload {
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unsigned char *blob;
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unsigned int len;
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char *name;
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int index;
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} Payload;
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typedef struct _Record {
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int offset;
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int length;
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int compressed;
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struct _Record *next;
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} Record;
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typedef struct _HeaderRecord {
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char *tag;
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Record *rec;
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struct _HeaderRecord *next;
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} HeaderRecord;
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typedef struct _TopazFile {
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FILE *f;
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HeaderRecord *hdrs;
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unsigned char *bookKey;
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unsigned int bodyOffset;
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MapList *metadata;
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PidList *pids; //extra pids to try from command line
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} TopazFile;
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Record *bookReadHeaderRecordData(FILE *f);
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void freeRecordList(Record *r);
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void freeHeaderList(HeaderRecord *r);
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void freeTopazFile(TopazFile *t);
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HeaderRecord *parseTopazHeaderRecord(FILE *f);
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HeaderRecord *addRecord(HeaderRecord *head, HeaderRecord *r);
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TopazFile *parseTopazHeader(FILE *f);
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void freeTopazFile(TopazFile *tpz);
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HeaderRecord *findHeader(TopazFile *tpz, char *tag);
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void freePayload(Payload *p);
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Payload *getBookPayloadRecord(TopazFile *t, char *name, int index, int explode);
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char *getMetadata(TopazFile *t, char *key);
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void parseMetadata(TopazFile *t);
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void decryptRecord(unsigned char *in, int len, unsigned char *out, unsigned char *PID);
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unsigned char *decryptDkeyRecord(unsigned char *data, int len, unsigned char *PID);
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unsigned char *decryptDkeyRecords(Payload *data, unsigned char *PID);
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void writeTopazOutputFile(TopazFile *t, FILE *out, cbuf *tpzHeaders,
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cbuf *tpzBody, int explode);
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#endif
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