127 lines
3.1 KiB
C++
Executable File
127 lines
3.1 KiB
C++
Executable File
//
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// SIMPEXT.CPP
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//
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// Source file for ArchiveLib 2.0
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//
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// Copyright (c) Greenleaf Software, Inc. 1994-1996
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// All Rights Reserved
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//
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// CONTENTS
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//
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// ALExtract()
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New Release
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//
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#include "arclib.h"
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#if !defined( AL_IBM )
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#pragma hdrstop
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#endif
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#include "alsimple.h"
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#include "pkarc.h"
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#include "pkengn.h"
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#include "filestor.h"
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#include "copyengn.h"
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//
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// NAME
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//
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// ALExtract()
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//
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// PLATFORMS/ENVIRONMENTS
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//
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// Console Windows PM
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// C++ C VB Delphi
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//
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// SHORT DESCRIPTION
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//
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// The simplified interface function to extract files from a ZIP file.
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//
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// C/C++ SYNOPSIS
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//
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// #include "alsimple.h"
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//
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// int ALExtract( ALZipDir *z,
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// int strip_path,
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// CALLBACK_FN callback )
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//
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// VB SYNOPSIS
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//
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// See arclib.bas for the equivalent VB function.
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//
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// DELPHI SYNOPSIS
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//
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// See arclib.pas for the equivalent Delphi function.
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//
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// ARGUMENTS
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//
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// z : The ALZipDir array. This is the array you will have
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// have read in using ALReadDir(). Every entry in the
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// array that has a mark set will be extracted.
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//
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// strip_path : If this flag is set, the files that are extracted
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// from the archive will have their paths stripped
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// before the extraction takes place.
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//
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// callback : C and C++ use a callback function for monitoring.
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// This function gets called periodically with
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// file names and progress ratios.
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//
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// DESCRIPTION
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//
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// The simplified ALExtract function extracts the files you specified
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// in the ALZipDir array. To do this, the function has to recover
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// the ALArchive pointer that is stashed in the last element of the
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// array. Then, it builds an ALEntryList that is used to call
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// ALArchive::Extract().
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//
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// RETURNS
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//
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// AL_SUCCESS if things went well, o/w an ArchiveLib error code.
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//
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// EXAMPLE
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//
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// SEE ALSO
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New Release
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//
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extern "C"
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AL_LINKAGE int AL_FUNCTION ALExtract( ALZipDir AL_DLL_FAR *z,
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int strip_path,
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CALLBACK_FN callback )
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{
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int i;
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for ( i = 0 ; z[ i ].size != -1L ; i++ )
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;
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#if defined( AL_LARGE_DATA )
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ALPkArchive *arc = (ALPkArchive *) z[ i ].compressed_size;
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#else
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ALPkArchive *arc = (ALPkArchive *) (int) z[ i ].compressed_size;
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#endif
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arc->mfStripPathOnExtract = strip_path;
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ALSimpleMonitor monitor( callback );
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ALEntryList list( &monitor );
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while ( z->name ) {
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ALDecompressor *d;
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if ( z->level == 0 )
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d = new ALCopyDecompressor;
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else
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d = new ALPkDecompressor;
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ALEntry *entry;
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entry = new ALEntry( list,
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new ALFile( z->name ),
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0,
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d );
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_UpdateEntry( entry, z );
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z++;
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}
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return arc->Extract( list );
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}
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