pgpfileutilities.h

vc环境下的pgp源码

/*____________________________________________________________________________
	Copyright (C) 1997 Network Associates Inc. and affiliated companies.
	All rights reserved.
	
	Platform-independent file-specification.  Specifies the *location* of a
	file in the file system.  Also included are utility routines for
	manipulating files.
	
	Note that a PGPFileSpec is not an object; it does not have subclasses
	or inheritence.

	$Id: pgpFileUtilities.h,v 1.9 1999/03/10 02:51:06 heller Exp $
____________________________________________________________________________*/
#ifndef Included_pgpFileUtilities_h	/* [ */
#define Included_pgpFileUtilities_h

#include <stdio.h>
#include "pgpMemoryMgr.h"
#include "pgpFileSpec.h"
#include "pgpFileIO.h"

PGP_BEGIN_C_DECLARATIONS
#if PRAGMA_IMPORT_SUPPORTED
#pragma import on
#endif


enum PFLFileOpenFlags_
{
	kPFLFileOpenFlags_ReadOnly		= 0,
	kPFLFileOpenFlags_ReadWrite		= (1L << 0),
	kPFLFileOpenFlags_LockFile		= (1L << 1)
};
typedef PGPUInt32	PFLFileOpenFlags;

PGPError	PGPOpenFileSpec( PFLFileSpecRef spec, PFLFileOpenFlags flags,
				PGPFileIORef *outRef );

/*
 * Perform any optional locking which isn't done by fopen().
 * Normally you shouldn't use this directly.  Instead just pass the
 * kPFLFileOpenFlags_LockFile flag to PGPOpenFileSpec().  This routine
 * is solely to support similar functionality in pgpFileRefStdIOOpen()
 * of the PGPsdk library.
 */
PGPError		PFLLockFILE( FILE * file, PFLFileOpenFlags flags );


/* set the file size of a *closed* file; it remains closed afterwards */
PGPError	PGPSetFileSize( PFLConstFileSpecRef spec, PGPFileOffset size);



#if PRAGMA_IMPORT_SUPPORTED
#pragma import on
#endif
PGP_END_C_DECLARATIONS

#endif	/* ] Included_pgpFileUtilities_h */

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