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comparison agent/src/os/win32/initWinsock.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2000 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 #include <iostream>
26 #include <winsock2.h>
27
28 using namespace std;
29
30 void
31 initWinsock()
32 {
33 static int initted = 0;
34 WORD wVersionRequested;
35 WSADATA wsaData;
36 int err;
37
38 if (!initted) {
39 wVersionRequested = MAKEWORD( 2, 0 );
40
41 err = WSAStartup( wVersionRequested, &wsaData );
42 if ( err != 0 ) {
43 {
44 /* Tell the user that we couldn't find a usable */
45 /* WinSock DLL. */
46 cerr << "SocketBase::SocketBase: unable to find usable "
47 << "WinSock DLL" << endl;
48 exit(1);
49 }
50 }
51
52 /* Confirm that the WinSock DLL supports 2.0.*/
53 /* Note that if the DLL supports versions greater */
54 /* than 2.0 in addition to 2.0, it will still return */
55 /* 2.0 in wVersion since that is the version we */
56 /* requested. */
57
58 if ( LOBYTE( wsaData.wVersion ) != 2 ||
59 HIBYTE( wsaData.wVersion ) != 0 ) {
60 /* Tell the user that we couldn't find a usable */
61 /* WinSock DLL. */
62 {
63 cerr << "Unable to find suitable version of WinSock DLL" << endl;
64 WSACleanup( );
65 exit(1);
66 }
67 }
68
69 initted = 1;
70 }
71 }