1 /******************************************************************************
2
3
4 Copyright 1993, 1998 The Open Group
5
6 Permission to use, copy, modify, distribute, and sell this software and its
7 documentation for any purpose is hereby granted without fee, provided that
8 the above copyright notice appear in all copies and that both that
9 copyright notice and this permission notice appear in supporting
10 documentation.
11
12 The above copyright notice and this permission notice shall be included in
13 all copies or substantial portions of the Software.
14
15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22 Except as contained in this notice, the name of The Open Group shall not be
23 used in advertising or otherwise to promote the sale, use or other dealings
24 in this Software without prior written authorization from The Open Group.
25
26 Author: 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
37 IceConn
IceAcceptConnection(IceListenObj listenObj,IceAcceptStatus * statusRet)38 IceAcceptConnection (
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