minix/lib/ack/libp/cls.c
2009-11-09 10:26:00 +00:00

67 lines
1.2 KiB
C

/* $Header$ */
/*
* (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 <pc_file.h>
#include <pc_err.h>
extern struct file *_curfil;
extern _trp();
extern _flush();
extern _outcpt();
extern int _close();
_xcls(f) 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);
}
_cls(f) 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;
}