ack/lang/pc/libpc/cls.c
2018-06-17 22:30:27 +02:00

66 lines
1.1 KiB
C

/* $Id$ */
/*
* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
*
* This product is part of the Amsterdam Compiler Kit.
*
* Permission to use, sell, duplicate or disclose this software must be
* obtained in writing. Requests for such permissions may be sent to
*
* Dr. Andrew S. Tanenbaum
* Wiskundig Seminarium
* Vrije Universiteit
* Postbox 7161
* 1007 MC Amsterdam
* The Netherlands
*
*/
/* Author: J.W. Stevenson */
#include <stdlib.h>
#include <unistd.h>
#include "pc.h"
void _xcls(struct file* f)
{
if ((f->flags & WRBIT) == 0)
return;
if ((f->flags & (TXTBIT | ELNBIT)) == TXTBIT)
{
#ifdef CPM
*f->ptr = '\r';
_outcpt(f);
#endif
*f->ptr = '\n';
_outcpt(f);
}
_flush(f);
}
void _cls(struct file* f)
{
#ifdef MAYBE
char* p;
#endif
_curfil = f;
if ((f->flags & 0377) != MAGIC)
return;
#ifdef MAYBE
p = f->bufadr;
if (f->ptr < p)
return;
if (f->buflen <= 0)
return;
p += f->buflen;
if (f->ptr >= p)
return;
#endif
_xcls(f);
if (close(f->ufd) != 0)
_trp(ECLOSE);
f->flags = 0;
}