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2003-02-14
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//--------------------------------------------------------------------------
//
// Copyright (c) 2002, Colin Granville
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or
// without modification, are permitted provided that the following
// conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// * The name Colin Granville may not be used to endorse or promote
// products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
//
//--------------------------------------------------------------------------
#include "file.h"
#include "swis.h"
// returns file_type or len if int* 's !=0
bool isFile(const char* filename, int *filetype,int *length)
{
DirectoryObject obj_type=fileInfo(filename,filetype,length);
return obj_type==Dob_File;
}
//***********************************************************
DirectoryObject fileInfo(const char* filename,int *file_type,int *length)
{
int len,load;
DirectoryObject object_type=Dob_NotFound;
if (_swix(OS_File,_INR(0,1) | _OUT(0) |_OUT(2) | _OUT(4),
5,filename,&object_type,&load,&len)==0)
{
if (file_type) *file_type=((load>>8) & 0xfff);
if (length) *length=len;
}
return object_type;
}
//***********************************************************
bool isDirectory(const char* dirname)
{
DirectoryObject dir_o=fileInfo(dirname);
return dir_o==Dob_Directory || dir_o==Dob_ImageFile;
}
//***********************************************************
void setFileType(const char*filename, int type)
{
if (type==0xdeaddead)
{
//set load and exec addresses to 0xdeaddead used while file is loading
_swix(OS_File,_INR(0,2),2,filename,type);
_swix(OS_File,_INR(0,1)|_IN(3),3,filename,type);
}
else
{
_swix(OS_File,_INR(0,2),18,filename,type);
}
}
//***********************************************************
bool createDirectory(const char* dirname)
{
return (_swix(OS_File,_INR(0,1) | _IN(4),8,dirname,0)==0);
}