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haio.h
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C/C++ Source or Header
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1995-03-09
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44 lines
/***********************************************************************
This file is part of HA, a general purpose file archiver.
Copyright (C) 1995 Harri Hirvola
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., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
HA I/O routines
***********************************************************************/
#define BLOCKLEN 8192
extern unsigned char ib[],ob[];
extern int ibl,ibf,obl;
extern U32B icnt,ocnt,totalsize;
#define getbyte() (ibl>0?(--ibl,ib[ibf++]):(bread(),(ibl>0?--ibl,ib[ibf++]:-1)))
#define putbyte(c) {ob[obl++]=(c);if(obl==BLOCKLEN)bwrite();}
#define flush() bwrite()
#define CRCCALC 1 /* flag to setinput/setoutput */
#define PROGDISP 2 /* flog to setinput/setoutput */
extern void (*outspecial)(unsigned char *obuf, unsigned oblen);
extern unsigned (*inspecial)(unsigned char *ibuf, unsigned iblen);
void setoutput(int fh, int mode, char *name);
void setinput(int fh, int mode, char *name);
U32B getcrc(void);
void clearcrc(void);
void bread(void);
void bwrite(void);