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source\lib\unrar\unrar_demo.g
  1 #exe = 1
  2 #norun = 1
  3 #gefile = 0
  4 #libdir = %EXEPATH%\lib
  5 #libdir1 = %EXEPATH%\..\lib\vis
  6 #include = %EXEPATH%\lib\stdlib.ge
  7 //#wait = 1
  8 /******************************************************************************
  9 *
 10 * Copyright (C) 2009, The Gentee Group. All rights reserved. 
 11 * This file is part of the Gentee open source project - http://www.gentee.com. 
 12 * 
 13 * THIS FILE IS PROVIDED UNDER THE TERMS OF THE GENTEE LICENSE ("AGREEMENT"). 
 14 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE CONSTITUTES RECIPIENTS 
 15 * ACCEPTANCE OF THE AGREEMENT.
 16 *
 17 * Author: Alexander Antypenko ( santy )
 18 *
 19 ******************************************************************************/
 20 
 21 include 
 22 {
 23    $"unrar.g"
 24 }
 25 
 26 define 
 27 {
 28  EXTRACT, 
 29  TEST, 
 30  PRINT 
 31 }
 32 
 33 extern
 34 {
 35  func OutProcessFileError(int iError)
 36  func ExtractArchive(str sArcName,int iMode, str strPsw)
 37 }
 38 
 39 func ShowComment(str cmtBuf)
 40 {
 41   print("\nComment:\n " +cmtBuf+ " \n")
 42 }
 43 
 44 
 45 func OutHelp()
 46 {
 47   print("\nUnrar_demo.   This is a simple example of UNRAR.DLL usage\n")
 48   print("\nSyntax:\n")
 49   print("\nUnrar_demo X <Archive> <psw>    extract archive contents")
 50   print("\nUnrar_demo T <Archive> <psw>    test archive contents")
 51   print("\nUnrar_demo P <Archive> <psw>    print archive contents to stdout \n\n")
 52 }
 53 
 54 func OutOpenArchiveError(int iError,str arcName)
 55 {
 56   switch (iError)
 57   {
 58     case $ERAR_NO_MEMORY: print("\nNot enough memory")
 59     case $ERAR_EOPEN: print("\nCannot open " + arcName)
 60     case $ERAR_BAD_ARCHIVE: print("\n "+arcName+" is not RAR archive")
 61     case $ERAR_BAD_DATA: print("\n "+arcName+"  : archive header broken")
 62     case $ERAR_UNKNOWN:  print("Unknown error")
 63   }
 64 }
 65 
 66 // main programm
 67 
 68 func unrar_demo <main>
 69 {
 70   str sOption = "" ,sParam2, sPassword
 71   str dem1,dem2
 72   //print(" \(argc()) \(argv(dem1.upper(),1))  \(argv(dem2.upper(),2))\n")
 73   if (argc() != 2 )
 74   {
 75     OutHelp()
 76     exit(0)
 77   }
 78   else {
 79    argv(sOption,1)
 80    argv(sPassword,3)
 81    switch (sOption.upper())
 82    {
 83     case "X": ExtractArchive(argv(sParam2,2),$EXTRACT,sPassword)
 84     case "T": ExtractArchive(argv(sParam2,2),$TEST,sPassword)
 85     case "P": ExtractArchive(argv(sParam2,2),$PRINT,sPassword)
 86     default
 87      {
 88       OutHelp()
 89       exit(0)
 90      }
 91    }
 92   }
 93 }
 94 
 95 
 96 func OutProcessFileError(int iError)
 97 {
 98   switch(iError)
 99   {
100     case $ERAR_UNKNOWN_FORMAT: print("Unknown archive format")
101     case $ERAR_BAD_ARCHIVE:    print("Bad volume")
102     case $ERAR_ECREATE:        print("File create error")
103     case $ERAR_EOPEN:          print("Volume open error")
104     case $ERAR_ECLOSE:         print("File close error")
105     case $ERAR_EREAD:          print("Read error")
106     case $ERAR_EWRITE:         print("Write error")
107     case $ERAR_BAD_DATA:       print("CRC error")
108     case $ERAR_UNKNOWN:        print("Unknown error")
109     case $ERAR_MISSING_PASSWORD: print("Password for encrypted file is not specified")
110   }
111 }
112 
113 func ExtractArchive(str sArcName,int iMode, str strPsw)
114 {
115   uint hArcData
116   int RHCode,PFCode
117   buf CmtBuf[16384]
118   str cmtBufHeader[255]
119   str sFileName,sTempStr
120   RARHeaderData HeaderData
121   RAROpenArchiveData OpenArchiveData
122 
123   mzero( &OpenArchiveData, sizeof( RAROpenArchiveData ))
124   with OpenArchiveData
125   {
126    .ArcName=sArcName.ptr()
127    .CmtBuf=CmtBuf.ptr()
128    .CmtBufSize=16384
129    .OpenMode=$RAR_OM_EXTRACT
130   }
131 
132   hArcData=RAROpenArchive(OpenArchiveData)
133   if (OpenArchiveData.OpenResult != 0)
134   {
135     OutOpenArchiveError(OpenArchiveData.OpenResult,sArcName)
136     return
137   }
138 
139   if (OpenArchiveData.CmtState==1) : ShowComment(sTempStr.copy(CmtBuf.ptr()))
140 
141   if  strPsw != "" : RARSetPassword(hArcData,strPsw)
142 
143   uint HeaderData_ptr  = malloc(sizeof( RARHeaderData ))
144   while ((RHCode=RARReadHeader(hArcData,HeaderData_ptr)) == 0)
145   {
146     sFileName.load(HeaderData_ptr+260,260).setlenptr()
147     switch(iMode)
148     {
149       case $EXTRACT: print("\nExtracting "+sFileName)
150       case $TEST:    print("\nTesting "+ sFileName ) 
151       case $PRINT:   print("\nPrinting "+ sFileName+" \n")
152     }
153     PFCode = RARProcessFile(hArcData, ?(iMode==$EXTRACT,$RAR_EXTRACT,$RAR_TEST),"","")
154     if (PFCode == 0) : print(" Ok \n")
155     else
156     {
157       OutProcessFileError(PFCode)
158       break
159     }
160   }
161   if (RHCode == $ERAR_BAD_DATA) : print("\nFile header broken")
162   mfree(HeaderData_ptr)
163   RARCloseArchive(hArcData);
164 }
165 
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