1/******************************************************************************
2
3
4Copyright 1993, 1998  The Open Group
5
6Permission to use, copy, modify, distribute, and sell this software and its
7documentation for any purpose is hereby granted without fee, provided that
8the above copyright notice appear in all copies and that both that
9copyright notice and this permission notice appear in supporting
10documentation.
11
12The above copyright notice and this permission notice shall be included in
13all copies or substantial portions of the Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
18OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall not be
23used in advertising or otherwise to promote the sale, use or other dealings
24in this Software without prior written authorization from The Open Group.
25
26Author: Ralph Mor, X Consortium
27******************************************************************************/
28
29#ifdef HAVE_CONFIG_H
30#include <config.h>
31#endif
32#include <X11/ICE/ICElib.h>
33#include "ICElibint.h"
34#include <X11/Xtrans/Xtrans.h>
35
36
37IceConn
38IceAcceptConnection (
39	IceListenObj 	listenObj,
40	IceAcceptStatus	*statusRet
41)
42{
43    IceConn    		iceConn;
44    XtransConnInfo	newconn;
45    iceByteOrderMsg 	*pMsg;
46    int   		endian, status;
47
48    /*
49     * Accept the connection.
50     */
51
52    if ((newconn = _IceTransAccept (listenObj->trans_conn, &status)) == NULL)
53    {
54	if (status == TRANS_ACCEPT_BAD_MALLOC)
55	    *statusRet = IceAcceptBadMalloc;
56	else
57	    *statusRet = IceAcceptFailure;
58	return (NULL);
59    }
60
61
62    /*
63     * Set close-on-exec so that programs that fork() don't get confused.
64     */
65
66    _IceTransSetOption (newconn, TRANS_CLOSEONEXEC, 1);
67
68
69    /*
70     * Create an ICE object for this connection.
71     */
72
73    if ((iceConn = malloc (sizeof (struct _IceConn))) == NULL)
74    {
75	_IceTransClose (newconn);
76	*statusRet = IceAcceptBadMalloc;
77	return (NULL);
78    }
79
80    iceConn->listen_obj = listenObj;
81
82    iceConn->waiting_for_byteorder = True;
83    iceConn->connection_status = IceConnectPending;
84    iceConn->io_ok = True;
85    iceConn->dispatch_level = 0;
86    iceConn->context = NULL;
87    iceConn->my_ice_version_index = 0;
88
89    iceConn->trans_conn = newconn;
90    iceConn->send_sequence = 0;
91    iceConn->receive_sequence = 0;
92
93    iceConn->connection_string = strdup(listenObj->network_id);
94
95    if (iceConn->connection_string == NULL)
96    {
97	_IceTransClose (newconn);
98	free (iceConn);
99	*statusRet = IceAcceptBadMalloc;
100	return (NULL);
101    }
102
103    iceConn->vendor = NULL;
104    iceConn->release = NULL;
105
106    if ((iceConn->inbuf = iceConn->inbufptr = malloc (ICE_INBUFSIZE)) != NULL)
107    {
108	iceConn->inbufmax = iceConn->inbuf + ICE_INBUFSIZE;
109    }
110    else
111    {
112	_IceTransClose (newconn);
113	free (iceConn->connection_string);
114	free (iceConn);
115	*statusRet = IceAcceptBadMalloc;
116	return (NULL);
117    }
118
119    if ((iceConn->outbuf = iceConn->outbufptr = malloc (ICE_OUTBUFSIZE)) != NULL)
120    {
121	iceConn->outbufmax = iceConn->outbuf + ICE_OUTBUFSIZE;
122    }
123    else
124    {
125	_IceTransClose (newconn);
126	free (iceConn->connection_string);
127	free (iceConn->inbuf);
128	free (iceConn);
129	*statusRet = IceAcceptBadMalloc;
130	return (NULL);
131    }
132
133    iceConn->scratch = NULL;
134    iceConn->scratch_size = 0;
135
136    iceConn->open_ref_count = 1;
137    iceConn->proto_ref_count = 0;
138
139    iceConn->skip_want_to_close = False;
140    iceConn->want_to_close = False;
141    iceConn->free_asap = False;
142
143    iceConn->saved_reply_waits = NULL;
144    iceConn->ping_waits = NULL;
145
146    iceConn->process_msg_info = NULL;
147
148    iceConn->connect_to_you = NULL;
149    iceConn->protosetup_to_you = NULL;
150
151    iceConn->connect_to_me = NULL;
152    iceConn->protosetup_to_me = NULL;
153
154
155    /*
156     * Send our byte order.
157     */
158
159    IceGetHeader (iceConn, 0, ICE_ByteOrder,
160	SIZEOF (iceByteOrderMsg), iceByteOrderMsg, pMsg);
161
162    endian = 1;
163    if (*(char *) &endian)
164	pMsg->byteOrder = IceLSBfirst;
165    else
166	pMsg->byteOrder = IceMSBfirst;
167
168    IceFlush (iceConn);
169
170
171    if (_IceWatchProcs)
172    {
173	/*
174	 * Notify the watch procedures that an iceConn was opened.
175	 */
176
177	_IceConnectionOpened (iceConn);
178    }
179
180    *statusRet = IceAcceptSuccess;
181
182    return (iceConn);
183}
184