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Amiga ACS 1998 #6
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amigaacscoverdisc1998-061998.iso
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descent
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pslib
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readfile.c
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1998-06-08
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/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
* $Source: f:/miner/source/pslib/rcs/readfile.c $
* $Revision: 1.8 $
* $Author: yuan $
* $Date: 1993/10/22 17:50:18 $
*
* ReadFileRaw, WriteFile, AppendFile, ReadFileBuf
* File and buffer i/o routines.
*
*/
#pragma off (unreferenced)
static char rcsid[] = "$Id: readfile.c 1.8 1993/10/22 17:50:18 yuan Exp $";
#pragma on (unreferenced)
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <io.h>
#include <sys\types.h>
#include <sys\stat.h>
#include <errno.h>
#include <string.h>
#include "readfile.h"
#include "error.h"
#include "mem.h"
//#include "mem2.h"
#define PACIFIER_COUNT 2047
void *ReadFile( char *filename, int *length )
{
void *FileData;
int handle;
handle = open( filename, O_RDONLY | O_BINARY );
if (handle == -1 )
Error("File %s, %s ",filename,strerror(errno));
*length = filelength( handle );
//FileData = (void * )malloc( *length );
MALLOC( FileData, ubyte, *length );
if (FileData == NULL ) {
close( handle );
Error("File %s, cannot malloc memory",filename);
}
if (read( handle, FileData, *length ) != *length ) {
free( FileData );
close( handle );
Error("File %s, %s ",filename,strerror(errno));
}
close( handle );
return FileData;
}
int AppendFile( char *filename, void *data, int length )
{
int handle;
handle = open( filename, O_WRONLY | O_CREAT | O_APPEND | O_BINARY , S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP );
if (handle == -1 ) {
return ERROR_OPENING_FILE;
}
if (write( handle, data, length )!=length) {
close( handle );
return ERROR_WRITING_FILE;
}
close( handle );
return 0;
}
int WriteFile( char *filename, void *data, int length )
{
int handle;
handle = open( filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP );
if (handle == -1 ) {
return ERROR_OPENING_FILE;
}
if (write( handle, data, length )!=length) {
close( handle );
return ERROR_WRITING_FILE;
}
close( handle );
return 0;
}
int ReadFileBuf( char *filename, byte *buf, int bufsize )
{
int length;
int handle;
handle = open( filename, O_RDONLY | O_BINARY );
if (handle == -1 ) {
return ERROR_OPENING_FILE;
}
if (length = read( handle, buf, bufsize ) != bufsize ) {
close( handle );
return ERROR_READING_DATA;
}
close( handle );
return length;
}