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148 lines
4.0 KiB
C
148 lines
4.0 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 __MOBI_H
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#define __MOBI_H
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#include <stdio.h>
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#include "skinutils.h"
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#pragma pack(2)
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typedef struct _PDB {
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char name[32];
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unsigned short attrib;
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unsigned short version;
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unsigned int created;
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unsigned int modified;
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unsigned int backup;
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unsigned int modNum;
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unsigned int appInfoID;
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unsigned int sortInfoID;
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unsigned int type;
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unsigned int creator;
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unsigned int uniqueIDseed;
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unsigned int nextRecordListID;
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unsigned short numRecs;
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} PDB;
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typedef struct _HeaderRec {
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unsigned int offset;
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unsigned int attribId;
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} HeaderRec;
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#define attrib(x) ((x)&0xFF)
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#define id(x) (bswap_l((x) & 0xFFFFFF00))
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typedef struct _PalmDocHeader {
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unsigned short compression;
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unsigned short reserverd1;
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unsigned int textLength;
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unsigned short recordCount;
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unsigned short recordSize;
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unsigned short encryptionType;
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unsigned short reserved2;
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} PalmDocHeader;
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//checked lengths are 24, 116, 208, 228
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typedef struct _MobiHeader {
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unsigned int id;
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unsigned int hdrLen;
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unsigned int type;
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unsigned int encoding;
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unsigned int uniqueId;
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unsigned int generator;
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unsigned char reserved1[40];
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unsigned int firstNonBookIdx;
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unsigned int nameOffset;
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unsigned int nameLength;
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unsigned int language;
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unsigned int inputLang;
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unsigned int outputLang;
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unsigned int formatVersion;
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unsigned int firstImageIdx;
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unsigned char unknown1[16];
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unsigned int exthFlags;
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unsigned char unknown2[36];
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unsigned int drmOffset;
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unsigned int drmCount;
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unsigned int drmSize;
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unsigned int drmFlags;
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unsigned char unknown3[58];
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unsigned short extra_flags;
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} MobiHeader;
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typedef struct _ExthRecHeader {
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unsigned int type;
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unsigned int len;
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} ExthRecHeader;
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typedef struct _ExthHeader {
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unsigned int id;
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unsigned int hdrLen;
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unsigned int recordCount;
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ExthRecHeader records[1];
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} ExthHeader;
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typedef struct _vstruct {
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unsigned int verification;
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unsigned int size;
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unsigned int type;
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unsigned char cksum[4];
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unsigned char cookie[32];
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} vstruct;
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typedef struct _kstruct {
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unsigned int ver;
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unsigned int flags;
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unsigned char finalkey[16];
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unsigned int expiry;
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unsigned int expiry2;
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} kstruct;
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typedef struct _MobiFile {
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FILE *f;
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PDB pdb;
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HeaderRec *hr;
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PalmDocHeader *pdh;
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MobiHeader *mobi;
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ExthHeader *exth;
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unsigned char *record0;
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unsigned int record0_offset;
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unsigned int record0_size;
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unsigned int mobiLen;
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unsigned int extra_data_flags;
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unsigned int recs;
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unsigned int drmCount;
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unsigned int textRecs;
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PidList *pids; //extra pids to try from command line
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} MobiFile;
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unsigned char *getExthData(MobiFile *book, unsigned int type, unsigned int *len);
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void enumExthRecords(ExthHeader *eh);
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unsigned char *PC1(unsigned char *key, unsigned int klen, unsigned char *src,
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unsigned char *dest, unsigned int len, int decryption);
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unsigned int getSizeOfTrailingDataEntry(unsigned char *ptr, unsigned int size);
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unsigned int getSizeOfTrailingDataEntries(unsigned char *ptr, unsigned int size, unsigned int flags);
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unsigned char *parseDRM(unsigned char *data, unsigned int count, unsigned char *pid, unsigned int pidlen);
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void freeMobiFile(MobiFile *book);
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MobiFile *parseMobiHeader(FILE *f);
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int writeMobiOutputFile(MobiFile *book, FILE *out, unsigned char *key,
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unsigned int drmOffset, unsigned int drm_len);
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#endif
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