| 0,0 → 1,105 |
|---|
| /* |
| This file is part of a common library |
| Copyright (C) 2002-6 Toby Thain, toby@telegraphics.com.au |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* BigEndian and LittleEndian file I/O for long words, short words, and bytes */ |
| |
| #include "file_io.h" |
| |
| OSErr read4B(FILEREF f,long *v){ |
| unsigned char p[4]; |
| FILECOUNT count = 4; |
| OSErr e = FSRead(f,&count,p); |
| if( !e ) |
| *v = ((long)p[0]<<24) | ((long)p[1]<<16) | ((long)p[2]<<8) | (long)p[3]; |
| return e; |
| } |
| |
| OSErr read2B(FILEREF f,short *v){ |
| unsigned char p[2]; |
| FILECOUNT count = 2; |
| OSErr e = FSRead(f,&count,p); |
| if( !e ) |
| *v = (p[0]<<8) | p[1]; |
| return e; |
| } |
| |
| OSErr read4L(FILEREF f,long *v){ |
| unsigned char p[4]; |
| FILECOUNT count = 4; |
| OSErr e = FSRead(f,&count,p); |
| if( !e ) |
| *v = ((long)p[3]<<24) | ((long)p[2]<<16) | ((long)p[1]<<8) | (long)p[0]; |
| return e; |
| } |
| |
| OSErr read2L(FILEREF f,short *v){ |
| unsigned char p[2]; |
| FILECOUNT count = 2; |
| OSErr e = FSRead(f,&count,p); |
| if( !e ) |
| *v = (p[1]<<8) | p[0]; |
| return e; |
| } |
| |
| OSErr read1(FILEREF f,unsigned char *v){ |
| FILECOUNT count = 1; |
| return FSRead(f,&count,v); |
| } |
| |
| OSErr write4B(FILEREF f,long v){ |
| unsigned char p[4]; |
| FILECOUNT count = 4; |
| p[3] = v; |
| p[2] = v>>8; |
| p[1] = v>>16; |
| p[0] = v>>24; |
| return FSWrite(f,&count,p); |
| } |
| |
| OSErr write2B(FILEREF f,short v){ |
| unsigned char p[2]; |
| FILECOUNT count = 2; |
| p[1] = v; |
| p[0] = v>>8; |
| return FSWrite(f,&count,p); |
| } |
| |
| OSErr write4L(FILEREF f,long v){ |
| unsigned char p[4]; |
| FILECOUNT count = 4; |
| p[0] = v; |
| p[1] = v>>8; |
| p[2] = v>>16; |
| p[3] = v>>24; |
| return FSWrite(f,&count,p); |
| } |
| |
| OSErr write2L(FILEREF f,short v){ |
| unsigned char p[2]; |
| FILECOUNT count = 2; |
| p[0] = v; |
| p[1] = v>>8; |
| return FSWrite(f,&count,p); |
| } |
| |
| OSErr write1(FILEREF f,unsigned char v){ |
| FILECOUNT count = 1; |
| return FSWrite(f,&count,&v); |
| } |
| |