skindle 6 with Topaz support

skindle/tpz.h

@@ -0,0 +1,82 @@
+/*
+   Copyright 2010 BartSimpson aka skindle
+   
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef __TPZ_H
+#define __TPZ_H
+
+#include <stdio.h>
+#include "skinutils.h"
+
+typedef struct _TpzCtx {
+   unsigned int v[2];
+} TpzCtx;
+
+void topazCryptoInit(TpzCtx *ctx, unsigned char *key, int klen);
+void topazCryptoDecrypt(TpzCtx *ctx, unsigned char *in, unsigned char *out, int len);
+int bookReadEncodedNumber(FILE *f);
+int encodeNumber(int number, unsigned char *out);
+char *bookReadString(FILE *f);
+
+typedef struct _Payload {
+   unsigned char *blob;
+   unsigned int len;
+   char *name;
+   int index;
+} Payload;
+
+typedef struct _Record {
+   int offset;
+   int length;
+   int compressed;
+   struct _Record *next;
+} Record;
+
+typedef struct _HeaderRecord {
+   char *tag;
+   Record *rec;
+   struct _HeaderRecord *next;
+} HeaderRecord;
+
+typedef struct _TopazFile {
+   FILE *f;
+   HeaderRecord *hdrs;
+   unsigned char *bookKey;
+   unsigned int bodyOffset;
+   MapList *metadata;
+   PidList *pids;    //extra pids to try from command line
+} TopazFile;
+
+Record *bookReadHeaderRecordData(FILE *f);
+void freeRecordList(Record *r);
+void freeHeaderList(HeaderRecord *r);
+void freeTopazFile(TopazFile *t);
+HeaderRecord *parseTopazHeaderRecord(FILE *f);
+HeaderRecord *addRecord(HeaderRecord *head, HeaderRecord *r);
+TopazFile *parseTopazHeader(FILE *f);
+void freeTopazFile(TopazFile *tpz);
+HeaderRecord *findHeader(TopazFile *tpz, char *tag);
+void freePayload(Payload *p);
+Payload *getBookPayloadRecord(TopazFile *t, char *name, int index, int explode);
+char *getMetadata(TopazFile *t, char *key);
+void parseMetadata(TopazFile *t);
+void decryptRecord(unsigned char *in, int len, unsigned char *out, unsigned char *PID);
+unsigned char *decryptDkeyRecord(unsigned char *data, int len, unsigned char *PID);
+unsigned char *decryptDkeyRecords(Payload *data, unsigned char *PID);
+void writeTopazOutputFile(TopazFile *t, FILE *out, cbuf *tpzHeaders, 
+                          cbuf *tpzBody, int explode);
+
+
+#endif