1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright 1994 Sun Microsystems, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */
29*7c478bd9Sstevel@tonic-gate
30*7c478bd9Sstevel@tonic-gate # include <unistd.h>
31*7c478bd9Sstevel@tonic-gate # include <errno.h>
32*7c478bd9Sstevel@tonic-gate # include <stdlib.h>
33*7c478bd9Sstevel@tonic-gate
34*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
35*7c478bd9Sstevel@tonic-gate # include <stdarg.h>
36*7c478bd9Sstevel@tonic-gate #else
37*7c478bd9Sstevel@tonic-gate # include <varargs.h>
38*7c478bd9Sstevel@tonic-gate #endif
39*7c478bd9Sstevel@tonic-gate
40*7c478bd9Sstevel@tonic-gate # include "lp.h"
41*7c478bd9Sstevel@tonic-gate # include "msgs.h"
42*7c478bd9Sstevel@tonic-gate
43*7c478bd9Sstevel@tonic-gate
44*7c478bd9Sstevel@tonic-gate /*
45*7c478bd9Sstevel@tonic-gate ** Size and pointer for mgetm()
46*7c478bd9Sstevel@tonic-gate */
47*7c478bd9Sstevel@tonic-gate static int MBGSize = 0;
48*7c478bd9Sstevel@tonic-gate static char * MBG = NULL;
49*7c478bd9Sstevel@tonic-gate
50*7c478bd9Sstevel@tonic-gate /*
51*7c478bd9Sstevel@tonic-gate ** Size and pointer for mputm()
52*7c478bd9Sstevel@tonic-gate */
53*7c478bd9Sstevel@tonic-gate static int MBPSize = 0;
54*7c478bd9Sstevel@tonic-gate static char * MBP = NULL;
55*7c478bd9Sstevel@tonic-gate
56*7c478bd9Sstevel@tonic-gate int peek3_2();
57*7c478bd9Sstevel@tonic-gate
58*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
mgetm(MESG * md,int type,...)59*7c478bd9Sstevel@tonic-gate int mgetm ( MESG * md, int type, ... )
60*7c478bd9Sstevel@tonic-gate #else
61*7c478bd9Sstevel@tonic-gate int mgetm (md, type, va_alist)
62*7c478bd9Sstevel@tonic-gate MESG *md;
63*7c478bd9Sstevel@tonic-gate int type;
64*7c478bd9Sstevel@tonic-gate va_dcl
65*7c478bd9Sstevel@tonic-gate #endif
66*7c478bd9Sstevel@tonic-gate {
67*7c478bd9Sstevel@tonic-gate va_list vp;
68*7c478bd9Sstevel@tonic-gate int ret;
69*7c478bd9Sstevel@tonic-gate int needsize;
70*7c478bd9Sstevel@tonic-gate
71*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
72*7c478bd9Sstevel@tonic-gate va_start(vp, type);
73*7c478bd9Sstevel@tonic-gate #else
74*7c478bd9Sstevel@tonic-gate va_start(vp);
75*7c478bd9Sstevel@tonic-gate #endif
76*7c478bd9Sstevel@tonic-gate
77*7c478bd9Sstevel@tonic-gate needsize = mpeek(md);
78*7c478bd9Sstevel@tonic-gate if (needsize <=0 || needsize > MSGMAX)
79*7c478bd9Sstevel@tonic-gate needsize = MSGMAX;
80*7c478bd9Sstevel@tonic-gate if (needsize > MBGSize)
81*7c478bd9Sstevel@tonic-gate {
82*7c478bd9Sstevel@tonic-gate if (MBG)
83*7c478bd9Sstevel@tonic-gate Free(MBG);
84*7c478bd9Sstevel@tonic-gate if ((MBG = (char *)Malloc(needsize)) == NULL)
85*7c478bd9Sstevel@tonic-gate {
86*7c478bd9Sstevel@tonic-gate MBGSize = 0;
87*7c478bd9Sstevel@tonic-gate MBG = NULL;
88*7c478bd9Sstevel@tonic-gate errno = ENOMEM;
89*7c478bd9Sstevel@tonic-gate return(-1);
90*7c478bd9Sstevel@tonic-gate }
91*7c478bd9Sstevel@tonic-gate MBGSize = needsize;
92*7c478bd9Sstevel@tonic-gate }
93*7c478bd9Sstevel@tonic-gate if (mread(md, MBG, MBGSize) < 0)
94*7c478bd9Sstevel@tonic-gate return(-1);
95*7c478bd9Sstevel@tonic-gate
96*7c478bd9Sstevel@tonic-gate ret = _getmessage(MBG, type, vp);
97*7c478bd9Sstevel@tonic-gate
98*7c478bd9Sstevel@tonic-gate va_end(vp);
99*7c478bd9Sstevel@tonic-gate
100*7c478bd9Sstevel@tonic-gate return(ret);
101*7c478bd9Sstevel@tonic-gate }
102*7c478bd9Sstevel@tonic-gate
103*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
mputm(MESG * md,int type,...)104*7c478bd9Sstevel@tonic-gate int mputm ( MESG * md, int type, ... )
105*7c478bd9Sstevel@tonic-gate #else
106*7c478bd9Sstevel@tonic-gate int mputm (md, type, va_alist)
107*7c478bd9Sstevel@tonic-gate MESG *md;
108*7c478bd9Sstevel@tonic-gate int type;
109*7c478bd9Sstevel@tonic-gate va_dcl
110*7c478bd9Sstevel@tonic-gate #endif
111*7c478bd9Sstevel@tonic-gate {
112*7c478bd9Sstevel@tonic-gate va_list vp;
113*7c478bd9Sstevel@tonic-gate int needsize;
114*7c478bd9Sstevel@tonic-gate
115*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
116*7c478bd9Sstevel@tonic-gate va_start(vp, type);
117*7c478bd9Sstevel@tonic-gate #else
118*7c478bd9Sstevel@tonic-gate va_start(vp);
119*7c478bd9Sstevel@tonic-gate #endif
120*7c478bd9Sstevel@tonic-gate needsize = _putmessage(NULL, type, vp);
121*7c478bd9Sstevel@tonic-gate va_end(vp);
122*7c478bd9Sstevel@tonic-gate if (needsize <= 0)
123*7c478bd9Sstevel@tonic-gate return(-1);
124*7c478bd9Sstevel@tonic-gate
125*7c478bd9Sstevel@tonic-gate if (needsize > MBPSize)
126*7c478bd9Sstevel@tonic-gate {
127*7c478bd9Sstevel@tonic-gate if (MBP)
128*7c478bd9Sstevel@tonic-gate Free(MBP);
129*7c478bd9Sstevel@tonic-gate if ((MBP = (char *)Malloc(needsize)) == NULL)
130*7c478bd9Sstevel@tonic-gate {
131*7c478bd9Sstevel@tonic-gate MBPSize = 0;
132*7c478bd9Sstevel@tonic-gate MBP = NULL;
133*7c478bd9Sstevel@tonic-gate errno = ENOMEM;
134*7c478bd9Sstevel@tonic-gate return(-1);
135*7c478bd9Sstevel@tonic-gate }
136*7c478bd9Sstevel@tonic-gate MBPSize = needsize;
137*7c478bd9Sstevel@tonic-gate }
138*7c478bd9Sstevel@tonic-gate
139*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
140*7c478bd9Sstevel@tonic-gate va_start(vp, type);
141*7c478bd9Sstevel@tonic-gate #else
142*7c478bd9Sstevel@tonic-gate va_start(vp);
143*7c478bd9Sstevel@tonic-gate #endif
144*7c478bd9Sstevel@tonic-gate needsize = _putmessage(MBP, type, vp);
145*7c478bd9Sstevel@tonic-gate va_end(vp);
146*7c478bd9Sstevel@tonic-gate if (needsize <= 0)
147*7c478bd9Sstevel@tonic-gate return(-1);
148*7c478bd9Sstevel@tonic-gate
149*7c478bd9Sstevel@tonic-gate
150*7c478bd9Sstevel@tonic-gate return(mwrite(md, MBP));
151*7c478bd9Sstevel@tonic-gate }
152*7c478bd9Sstevel@tonic-gate
153*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
__mbfree(void)154*7c478bd9Sstevel@tonic-gate void __mbfree ( void )
155*7c478bd9Sstevel@tonic-gate #else
156*7c478bd9Sstevel@tonic-gate void __mbfree ()
157*7c478bd9Sstevel@tonic-gate #endif
158*7c478bd9Sstevel@tonic-gate {
159*7c478bd9Sstevel@tonic-gate MBGSize = MBPSize = 0;
160*7c478bd9Sstevel@tonic-gate if (MBG)
161*7c478bd9Sstevel@tonic-gate Free (MBG);
162*7c478bd9Sstevel@tonic-gate if (MBP)
163*7c478bd9Sstevel@tonic-gate Free (MBP);
164*7c478bd9Sstevel@tonic-gate MBG = MBP = NULL;
165*7c478bd9Sstevel@tonic-gate }
166*7c478bd9Sstevel@tonic-gate
167*7c478bd9Sstevel@tonic-gate #if defined(__STDC__)
mpeek(MESG * md)168*7c478bd9Sstevel@tonic-gate short mpeek ( MESG * md )
169*7c478bd9Sstevel@tonic-gate #else
170*7c478bd9Sstevel@tonic-gate short mpeek (md)
171*7c478bd9Sstevel@tonic-gate MESG *md;
172*7c478bd9Sstevel@tonic-gate #endif
173*7c478bd9Sstevel@tonic-gate {
174*7c478bd9Sstevel@tonic-gate int size;
175*7c478bd9Sstevel@tonic-gate
176*7c478bd9Sstevel@tonic-gate if (md->type == MD_USR_FIFO || md->type == MD_SYS_FIFO)
177*7c478bd9Sstevel@tonic-gate return(peek3_2(md->readfd) - EXCESS_3_2_LEN);
178*7c478bd9Sstevel@tonic-gate
179*7c478bd9Sstevel@tonic-gate if (ioctl(md->readfd, I_NREAD, &size))
180*7c478bd9Sstevel@tonic-gate return((short)size);
181*7c478bd9Sstevel@tonic-gate
182*7c478bd9Sstevel@tonic-gate return(-1);
183*7c478bd9Sstevel@tonic-gate }
184