1 /*
2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <stdio.h>
27 #ifdef _WIN32
28 #include <winsock2.h>
29 #include <ws2tcpip.h>
30 #else
31 #include <sys/types.h>
32 #include <sys/socket.h>
33 #include <netinet/in.h>
34 #include <netinet/tcp.h>
35 #endif
36
37 /**
38 * Generates sun.nio.ch.SocketOptionRegistry, a class that maps Java-level
39 * socket options to the platform specific level and option.
40 */
41
42 static void out(char* s) {
43 printf("%s\n", s);
44 }
45
46 static void emit(const char *name, char * family, int level, int optname) {
47 printf(" map.put(new RegistryKey(%s, %s),", name, family);
48 printf(" new OptionKey(%d, %d));\n", level, optname);
49 }
50
51 static void emit_unspec(const char *name, int level, int optname) {
52 emit(name, "Net.UNSPEC", level, optname);
53 }
54
55 static void emit_inet(const char *name, int level, int optname) {
56 emit(name, "StandardProtocolFamily.INET", level, optname);
57 }
58
59 static void emit_inet6(const char *name, int level, int optname) {
60 emit(name, "StandardProtocolFamily.INET6", level, optname);
61 }
62
63 int main(int argc, const char* argv[]) {
64 out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT ");
65 out("package sun.nio.ch; ");
66 out("import java.net.SocketOption; ");
67 out("import java.net.StandardSocketOptions; ");
68 out("import java.net.ProtocolFamily; ");
69 out("import java.net.StandardProtocolFamily; ");
70 out("import java.util.Map; ");
71 out("import java.util.HashMap; ");
72 out("class SocketOptionRegistry { ");
73 out(" private SocketOptionRegistry() { } ");
74 out(" private static class RegistryKey { ");
75 out(" private final SocketOption<?> name; ");
76 out(" private final ProtocolFamily family; ");
77 out(" RegistryKey(SocketOption<?> name, ProtocolFamily family) { ");
78 out(" this.name = name; ");
79 out(" this.family = family; ");
80 out(" } ");
81 out(" public int hashCode() { ");
82 out(" return name.hashCode() + family.hashCode(); ");
83 out(" } ");
84 out(" public boolean equals(Object ob) { ");
85 out(" if (ob == null) return false; ");
86 out(" if (!(ob instanceof RegistryKey)) return false; ");
87 out(" RegistryKey other = (RegistryKey)ob; ");
88 out(" if (this.name != other.name) return false; ");
89 out(" if (this.family != other.family) return false; ");
90 out(" return true; ");
91 out(" } ");
92 out(" } ");
93 out(" private static class LazyInitialization { ");
94 out(" static final Map<RegistryKey,OptionKey> options = options(); ");
95 out(" private static Map<RegistryKey,OptionKey> options() { ");
96 out(" Map<RegistryKey,OptionKey> map = ");
97 out(" new HashMap<RegistryKey,OptionKey>(); ");
98
99 emit_unspec("StandardSocketOptions.SO_BROADCAST", SOL_SOCKET, SO_BROADCAST);
100 emit_unspec("StandardSocketOptions.SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE);
101 emit_unspec("StandardSocketOptions.SO_LINGER", SOL_SOCKET, SO_LINGER);
102 emit_unspec("StandardSocketOptions.SO_SNDBUF", SOL_SOCKET, SO_SNDBUF);
103 emit_unspec("StandardSocketOptions.SO_RCVBUF", SOL_SOCKET, SO_RCVBUF);
104 emit_unspec("StandardSocketOptions.SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR);
105 emit_unspec("StandardSocketOptions.TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY);
106
107 emit_inet("StandardSocketOptions.IP_TOS", IPPROTO_IP, IP_TOS);
108 emit_inet("StandardSocketOptions.IP_MULTICAST_IF", IPPROTO_IP, IP_MULTICAST_IF);
109 emit_inet("StandardSocketOptions.IP_MULTICAST_TTL", IPPROTO_IP, IP_MULTICAST_TTL);
110 emit_inet("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IP, IP_MULTICAST_LOOP);
111
112 #ifdef AF_INET6
113 emit_inet6("StandardSocketOptions.IP_TOS", IPPROTO_IPV6, IPV6_TCLASS);
114 emit_inet6("StandardSocketOptions.IP_MULTICAST_IF", IPPROTO_IPV6, IPV6_MULTICAST_IF);
115 emit_inet6("StandardSocketOptions.IP_MULTICAST_TTL", IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
116 emit_inet6("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
117 #endif
118
119 emit_unspec("ExtendedSocketOption.SO_OOBINLINE", SOL_SOCKET, SO_OOBINLINE);
120
121 out(" return map; ");
122 out(" } ");
123 out(" } ");
124 out(" public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) { ");
125 out(" RegistryKey key = new RegistryKey(name, family); ");
126 out(" return LazyInitialization.options.get(key); ");
127 out(" } ");
128 out("} ");
129
130 return 0;
131 }