1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1996 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30
31 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */
32 # include <string.h>
33 # include <stropts.h>
34 # include <errno.h>
35 # include <stdlib.h>
36 # include <unistd.h>
37
38 # include "lp.h"
39 # include "msgs.h"
40
mdestroy(MESG * md)41 int mdestroy(MESG *md)
42 {
43 struct pollfd pfd;
44 struct strrecvfd recbuf;
45
46 if (!md || md->type != MD_MASTER || md->file == NULL) {
47 errno = EINVAL;
48 return(-1);
49 }
50
51 if (fdetach(md->file) != 0)
52 return(-1);
53
54 pfd.fd = md->readfd;
55 pfd.events = POLLIN;
56 while (poll(&pfd, 1, 500) > 0) {
57 if (ioctl(md->readfd, I_RECVFD, &recbuf) == 0)
58 close(recbuf.fd);
59 }
60
61 /*
62 * Pop connld module
63 */
64 if (ioctl(md->writefd, I_POP, 0) != 0)
65 return(-1);
66
67 Free(md->file);
68 md->file = NULL;
69
70 (void) mdisconnect(md);
71
72 return(0);
73 }
74