xpinstall/src/gdiff.h

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either of the GNU General Public License Version 2 or later (the "GPL"),
  26  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
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  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37 /*--------------------------------------------------------------
  38  * GDIFF.H
  39  *
  40  * Constants used in processing the GDIFF format
  41  *--------------------------------------------------------------*/
  42
  43
  44 #include "prio.h"
  45
  46 #define GDIFF_MAGIC         "\xD1\xFF\xD1\xFF"
  47 #define GDIFF_MAGIC_LEN     4
  48 #define GDIFF_VER           5
  49 #define GDIFF_EOF           "\0"
  50
  51 #define GDIFF_VER_POS       4
  52 #define GDIFF_CS_POS        5
  53 #define GDIFF_CSLEN_POS     6
  54
  55 #define GDIFF_HEADERSIZE    7
  56 #define GDIFF_APPDATALEN    4
  57
  58 #define GDIFF_CS_NONE       0
  59 #define GDIFF_CS_MD5        1
  60 #define GDIFF_CS_SHA        2
  61 #define GDIFF_CS_CRC32      32
  62
  63 #define CRC32_LEN           4
  64
  65 /*--------------------------------------
  66  *  GDIFF opcodes
  67  *------------------------------------*/
  68 #define ENDDIFF     0
  69 #define ADD8MAX     246
  70 #define ADD16       247
  71 #define ADD32       248
  72 #define COPY16BYTE  249
  73 #define COPY16SHORT 250
  74 #define COPY16LONG  251
  75 #define COPY32BYTE  252
  76 #define COPY32SHORT 253
  77 #define COPY32LONG  254
  78 #define COPY64      255
  79
  80 /* instruction sizes */
  81 #define ADD16SIZE           2
  82 #define ADD32SIZE           4
  83 #define COPY16BYTESIZE      3
  84 #define COPY16SHORTSIZE     4
  85 #define COPY16LONGSIZE      6
  86 #define COPY32BYTESIZE      5
  87 #define COPY32SHORTSIZE     6
  88 #define COPY32LONGSIZE      8
  89 #define COPY64SIZE          12
  90
  91
  92 /*--------------------------------------
  93  *  error codes
  94  *------------------------------------*/
  95 #define GDIFF_OK                0
  96 #define GDIFF_ERR_UNKNOWN       -1
  97 #define GDIFF_ERR_ARGS          -2
  98 #define GDIFF_ERR_ACCESS        -3
  99 #define GDIFF_ERR_MEM           -4
 100 #define GDIFF_ERR_HEADER        -5
 101 #define GDIFF_ERR_BADDIFF       -6
 102 #define GDIFF_ERR_OPCODE        -7
 103 #define GDIFF_ERR_OLDFILE       -8
 104 #define GDIFF_ERR_CHKSUMTYPE    -9
 105 #define GDIFF_ERR_CHECKSUM      -10
 106 #define GDIFF_ERR_CHECKSUM_TARGET  -11
 107 #define GDIFF_ERR_CHECKSUM_RESULT  -12
 108
 109
 110 /*--------------------------------------
 111  *  types
 112  *------------------------------------*/
 113 #ifndef AIX
 114 #ifdef OSF1
 115 #include <sys/types.h>
 116 #else
 117 typedef unsigned char uchar;
 118 #endif
 119 #endif
 120
 121 typedef struct _diffdata {
 122     PRFileDesc* fSrc;
 123     PRFileDesc* fOut;
 124     PRFileDesc* fDiff;
 125     uint8       checksumType;
 126     uint8       checksumLength;
 127     uchar*      oldChecksum;
 128     uchar*      newChecksum;
 129     PRBool      bMacAppleSingle;
 130     PRBool      bWin32BoundImage;
 131     uchar*      databuf;
 132     uint32      bufsize;
 133 } DIFFDATA;
 134
 135 typedef DIFFDATA* pDIFFDATA;
 136
 137
 138 /*--------------------------------------
 139  *  miscellaneous
 140  *------------------------------------*/
 141
 142 #define APPFLAG_W32BOUND        "autoinstall:Win32PE"
 143 #define APPFLAG_APPLESINGLE     "autoinstall:AppleSingle"
 144
 145 #ifndef TRUE
 146   #define TRUE  1
 147 #endif
 148
 149 #ifndef FALSE
 150   #define FALSE 0
 151 #endif
 152
 153