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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code,
* released March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Daniel Veditz <dveditz@netscape.com>
*/
#ifndef _zipfile_h
#define _zipfile_h
/*
* This module implements a simple archive extractor for the PKZIP format.
*
* All functions return a status/error code, and have an opaque hZip argument
* that represents an open archive.
*
* Currently only compression mode 8 (or none) is supported.
*/
#define ZIP_OK 0
#define ZIP_ERR_GENERAL -1
#define ZIP_ERR_MEMORY -2
#define ZIP_ERR_DISK -3
#define ZIP_ERR_CORRUPT -4
#define ZIP_ERR_PARAM -5
#define ZIP_ERR_FNF -6
#define ZIP_ERR_UNSUPPORTED -7
#define ZIP_ERR_SMALLBUF -8
#ifdef STANDALONE
PR_BEGIN_EXTERN_C
/* Open and close the archive
*
* If successful OpenArchive returns a handle in the hZip parameter
* that must be passed to all subsequent operations on the archive
*/
PR_EXTERN(PRInt32) ZIP_OpenArchive( const char * zipname, void** hZip );
PR_EXTERN(PRInt32) ZIP_CloseArchive( void** hZip );
/* Test the integrity of every item in this open archive
* by verifying each item's checksum against the stored
* CRC32 value.
*/
PR_EXTERN(PRInt32) ZIP_TestArchive( void* hZip );
/* Extract the named file in the archive to disk.
* This function will happily overwrite an existing Outfile if it can.
* It's up to the caller to detect or move it out of the way if it's important.
*/
PR_EXTERN(PRInt32) ZIP_ExtractFile( void* hZip, const char * filename, const char * outname );
/* Functions to list the files contained in the archive
*
* FindInit() initializes the search with the pattern and returns a find token,
* or NULL on an error. Then FindNext() is called with the token to get the
* matching filenames if any. When done you must call FindFree() with the
* token to release memory.
*
* a NULL pattern will find all the files in the archive, otherwise the
* pattern must be a shell regexp type pattern.
*
* if a matching filename is too small for the passed buffer FindNext()
* will return ZIP_ERR_SMALLBUF. When no more matches can be found in
* the archive it will return ZIP_ERR_FNF
*/
PR_EXTERN(void*) ZIP_FindInit( void* hZip, const char * pattern );
PR_EXTERN(PRInt32) ZIP_FindNext( void* hFind, char * outbuf, PRUint16 bufsize );
PR_EXTERN(PRInt32) ZIP_FindFree( void* hFind );
PR_END_EXTERN_C
#endif /* STANDALONE */
#endif /* _zipfile_h */
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