/*
 *  FILECOPY.H
 *
 *  (c)Copyright 1990,93 by Tobias Ferber,  All Rights Reserved.
 */

#ifndef FILECOPY_H
#define FILECOPY_H

#include <stdio.h>

/* increase readability */
typedef unsigned char uchar;
typedef unsigned long ulong;

/*
   By default, filecopy() will try to malloc() a copy buffer of
   MAXIMUM_BUFFERSIZE bytes.  Note that last is limited to 64K
   because malloc() can't allocate more at a time by ANSI definition.
   There are however situations where you don't want filecopy() to
   allocate this buffer on it's own each time.  In this case you can
   set a permanent copy buffer via fc_setbuf().  If you do so, please
   don't forget to free() this buffer again via fc_setbuf(0L) after
   having copied all your files.
   Note that fc_setbuf will not check wether you try to allocate
   more than MAXIMUM_BUFFERSIZE bytes, which makes sense if your
   compiler has no limit for malloc() or fc_setbuf() has been patched
   to use something else than malloc() to get some memory.
   Note also that if filecopy fails to allocate a buffer, it will
   copy your file byte for byte.
*/

#define MAXIMUM_BUFFERSIZE (1L<<16)

/*
 * The ftell() function in the c.lib of Dillon's shareware C Compiler DICE
 * seems to be somewhat buggy.  If you've got similar problems with ftell()
 * you can comment out the following

#define BUGGY_FTELL

 * or simply compile using the -DBUGGY_FTELL option with the result that
 * filecopy() will count bytes instead of asking ftell() about the file size.
 */

/* Do my prototypes look like those of Cray Research, Inc. ?! */

#ifndef __

#if defined (__STDC__) || defined(__cplusplus)
#define __(protos) protos
#else /* !(__STDC__ || __cplusplus) */
#define __(protos) ()
#endif /* __STDC__ || __cplusplus */

#endif /* !__ */

extern ulong fc_setbuf __( (ulong numbytes) );
extern long filecopy   __( (FILE *src, FILE *dst, long n) );

/* see filecopy.c for further details... */

#endif /* !FILECOPY_H */