xref: /titanic_51/usr/src/cmd/lp/lib/msgs/mdisconnect.c (revision a60fc142342386d0b786e65fba901234400d7020)
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 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.5	*/
27 /* LINTLIBRARY */
28 
29 # include	<stropts.h>
30 # include	<errno.h>
31 # include	<stdlib.h>
32 
33 #include "lp.h"
34 #include "msgs.h"
35 
36 #if	defined(__STDC__)
37 static void	disconnect3_2 ( MESG * );
38 #else
39 static void	disconnect3_2();
40 #endif
41 
42 #if	defined(__STDC__)
43 int mdisconnect ( MESG * md )
44 #else
45 int mdisconnect (md)
46     MESG	*md;
47 #endif
48 {
49     int		retvalue = 0;
50     void	(**fnp)();
51     MQUE	*p;
52 
53     if (!md)
54     {
55 	errno = ENXIO;
56 	return(-1);
57     }
58 
59     switch(md->type)
60     {
61 	case MD_CHILD:
62 	case MD_STREAM:
63 	case MD_BOUND:
64 	    if (md->writefd >= 0)
65 		(void) Close(md->writefd);
66 	    if (md->readfd >= 0)
67 		(void) Close(md->readfd);
68 	    break;
69 
70 	case MD_USR_FIFO:
71 	case MD_SYS_FIFO:
72 	   disconnect3_2(md);
73 	   break;
74     }
75 
76     if (md->on_discon)
77     {
78 	for (fnp = md->on_discon; *fnp; fnp++)
79 	{
80 	    (*fnp)(md);
81 	    retvalue++;
82 	}
83 	Free(md->on_discon);
84     }
85 
86     if (md->file)
87 	Free(md->file);
88 
89     if (md->mque)
90     {
91 	while ((p = md->mque) != NULL)
92 	{
93 	    md->mque = p->next;
94 	    Free(p->dat->buf);
95 	    Free(p->dat);
96 	    Free(p);
97 	}
98     }
99     Free(md);
100 
101     return(retvalue);
102 }
103 
104 int	discon3_2_is_running = 0;
105 
106 #if	defined(__STDC__)
107 static void disconnect3_2 ( MESG * md )
108 #else
109 static void disconnect3_2 (md)
110     MESG	*md;
111 #endif
112 {
113     char	*msgbuf = 0;
114     int		size;
115 
116     discon3_2_is_running = 1;
117 
118     if (md->writefd != -1)
119     {
120 	size = putmessage((char *)0, S_GOODBYE);
121 	if ((msgbuf = (char *)Malloc((unsigned)size)))
122 	{
123 	    (void)putmessage (msgbuf, S_GOODBYE);
124 	    (void)msend (msgbuf);
125 	    Free (msgbuf);
126 	}
127 
128 	(void) Close (md->writefd);
129     }
130 
131     if (md->readfd != -1)
132 	(void) Close (md->readfd);
133 
134     if (md->file)
135     {
136 	(void) Unlink (md->file);
137 	Free (md->file);
138     }
139 
140     discon3_2_is_running = 0;
141 }
142