ack/lang/pc/libpc/popen.c
1984-07-20 11:03:31 +00:00

42 lines
879 B
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 _cls();
extern _trp();
extern int open();
/* procedure popen(var f:text; s:string); */
popen(f,s) struct file *f; char *s; {
_cls(f); /* initializes _curfil */
f->ptr = f->bufadr;
f->flags = TXTBIT|MAGIC;
f->fname = s;
f->size = 1;
f->count = 0;
f->buflen = 512;
if ((f->ufd = open(s,0)) < 0)
_trp(ERESET);
}