source: trunk/minix/lib/ack/libp/popen.c@ 20

/* $Header: /cvsup/minix/src/lib/ack/libp/popen.c,v 1.1 2005/10/10 15:27:47 beng Exp $ */
/*
 * (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 = PC_BUFLEN;
        if ((f->ufd = _open(s,0)) < 0)
                _trp(ERESET);
}