/////////////////////////////////////////////////////////////////////////////
// Creation 12/12/2003                                               
// 
// 
//                           TESTUNZIP.C
//                           -----------
// 
// 
// Sylvain MARECHAL - sylvain.marechal1@libertysurf.fr
/////////////////////////////////////////////////////////////////////////////
// 
//  Show how to unizp a file, using the zlib and the unzip.c file
//
//  Usage: testunzip <file.zip>
//  The files are extracted in the current folder
//  
//  Links:
//  -http://www.winimage.com/zLibDll/unzip.htm
//  -http://www.zlib.org/
// 
/////////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "unzip.h"
#ifndef MAX_PATH
#define MAX_PATH    1024
#endif

int main( int argc, char * argv[] )
{
    char szZipFile[MAX_PATH] = {0};
    unzFile unzf;
    if( argc < 2 )
    {
	printf( "Usage: %s <file.zip>\n" );
	return 1;
    }
    strcpy( szZipFile,  argv[1] );
    
    // Open zip file
    unzf = unzOpen( szZipFile );
    if( unzf == NULL )
    {
	printf( "Can't open zip file\n" );
	return 1;
    }

    // First file
    if( unzGoToFirstFile(unzf) != UNZ_OK )
    {
	printf( "unzGoToFirstFile() error\n" );
	return 1;
    }

    // Loop
    do
    {
	char szFileName[MAX_PATH];
	unz_file_info file_info;
	char * pBuffer;
	if( unzGetCurrentFileInfo(unzf,
                         &file_info,
                         szFileName,
                         MAX_PATH,
                         NULL,
                         0,
                         NULL,
                         0) == UNZ_OK )
	{
	    // Print some infos
	    printf( "File: %s, compressed_size=%d, uncompressed_size=%d\n", szFileName, 
		file_info.compressed_size, file_info.uncompressed_size );

	    // Unzip this file in current folder
            pBuffer = (char *)malloc( file_info.uncompressed_size );
	    if( pBuffer )
	    {
		FILE * pFile;

		// Read the content into memory
		unzOpenCurrentFile( unzf );
		unzReadCurrentFile( unzf, (void*)pBuffer, file_info.uncompressed_size );
		unzCloseCurrentFile( unzf );

		// Save memory in a file
		pFile = fopen( szFileName, "wb" );
		if( pFile )
		{
		    fwrite( (void*) pBuffer, 1, file_info.uncompressed_size, pFile );
		    fclose( pFile );
		}
		else
		{
		    printf( "Can't open file '%s'\n", szFileName );
		}
		free( pBuffer );
	    }
	    else
	    {
		printf( "Can't allocate %d bytes of memory\n", file_info.uncompressed_size );
	    }
	}
    } while(unzGoToNextFile(unzf) == UNZ_OK);


    // Close zip file
    unzClose( unzf );
    return 0;
}