1 /*
2 * Copyright (c) 2008, 2016, 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 /* Defines SO_REUSEPORT */
38 #if !defined(SO_REUSEPORT)
39 #ifdef _WIN32
40 #define SO_REUSEPORT 0
41 #elif __linux__
42 #define SO_REUSEPORT 15
43 #elif __solaris__
44 #define SO_REUSEPORT 0x100e
45 #elif defined(AIX) || defined(MACOSX)
46 #define SO_REUSEPORT 0x0200
47 #else
48 #define SO_REUSEPORT 0
49 #endif
50 #endif
51
52 /**
53 * Generates sun.nio.ch.SocketOptionRegistry, a class that maps Java-level
54 * socket options to the platform specific level and option.
55 */
56
57 static void out(char* s) {
58 printf("%s\n", s);
59 }
60
61 static void emit(const char *name, char * family, int level, int optname) {
62 printf(" map.put(new RegistryKey(%s, %s),", name, family);
63 printf(" new OptionKey(%d, %d));\n", level, optname);
64 }
65
66 static void emit_unspec(const char *name, int level, int optname) {
67 emit(name, "Net.UNSPEC", level, optname);
68 }
69
70 static void emit_inet(const char *name, int level, int optname) {
71 emit(name, "StandardProtocolFamily.INET", level, optname);
72 }
73
74 static void emit_inet6(const char *name, int level, int optname) {
75 emit(name, "StandardProtocolFamily.INET6", level, optname);
76 }
77
78 int main(int argc, const char* argv[]) {
79 out("// AUTOMATICALLY GENERATED FILE - DO NOT EDIT ");
80 out("package sun.nio.ch; ");
81 out("import java.net.SocketOption; ");
82 out("import java.net.StandardSocketOptions; ");
83 out("import java.net.ProtocolFamily; ");
84 out("import java.net.StandardProtocolFamily; ");
85 out("import java.util.Map; ");
86 out("import java.util.HashMap; ");
87 out("class SocketOptionRegistry { ");
88 out(" private SocketOptionRegistry() { } ");
89 out(" private static class RegistryKey { ");
90 out(" private final SocketOption<?> name; ");
91 out(" private final ProtocolFamily family; ");
92 out(" RegistryKey(SocketOption<?> name, ProtocolFamily family) { ");
93 out(" this.name = name; ");
94 out(" this.family = family; ");
95 out(" } ");
96 out(" public int hashCode() { ");
97 out(" return name.hashCode() + family.hashCode(); ");
98 out(" } ");
99 out(" public boolean equals(Object ob) { ");
100 out(" if (ob == null) return false; ");
101 out(" if (!(ob instanceof RegistryKey)) return false; ");
102 out(" RegistryKey other = (RegistryKey)ob; ");
103 out(" if (this.name != other.name) return false; ");
104 out(" if (this.family != other.family) return false; ");
105 out(" return true; ");
106 out(" } ");
107 out(" } ");
108 out(" private static class LazyInitialization { ");
109 out(" static final Map<RegistryKey,OptionKey> options = options(); ");
110 out(" private static Map<RegistryKey,OptionKey> options() { ");
111 out(" Map<RegistryKey,OptionKey> map = ");
112 out(" new HashMap<RegistryKey,OptionKey>(); ");
113
114 emit_unspec("StandardSocketOptions.SO_BROADCAST", SOL_SOCKET, SO_BROADCAST);
115 emit_unspec("StandardSocketOptions.SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE);
116 emit_unspec("StandardSocketOptions.SO_LINGER", SOL_SOCKET, SO_LINGER);
117 emit_unspec("StandardSocketOptions.SO_SNDBUF", SOL_SOCKET, SO_SNDBUF);
118 emit_unspec("StandardSocketOptions.SO_RCVBUF", SOL_SOCKET, SO_RCVBUF);
119 emit_unspec("StandardSocketOptions.SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR);
120 emit_unspec("StandardSocketOptions.SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT);
121 emit_unspec("StandardSocketOptions.TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY);
122
123 emit_inet("StandardSocketOptions.IP_TOS", IPPROTO_IP, IP_TOS);
124 emit_inet("StandardSocketOptions.IP_MULTICAST_IF", IPPROTO_IP, IP_MULTICAST_IF);
125 emit_inet("StandardSocketOptions.IP_MULTICAST_TTL", IPPROTO_IP, IP_MULTICAST_TTL);
126 emit_inet("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IP, IP_MULTICAST_LOOP);
127
128 #ifdef AF_INET6
129 emit_inet6("StandardSocketOptions.IP_TOS", IPPROTO_IPV6, IPV6_TCLASS);
130 emit_inet6("StandardSocketOptions.IP_MULTICAST_IF", IPPROTO_IPV6, IPV6_MULTICAST_IF);
131 emit_inet6("StandardSocketOptions.IP_MULTICAST_TTL", IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
132 emit_inet6("StandardSocketOptions.IP_MULTICAST_LOOP", IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
133 #endif
134
135 emit_unspec("ExtendedSocketOption.SO_OOBINLINE", SOL_SOCKET, SO_OOBINLINE);
136
137 out(" return map; ");
138 out(" } ");
139 out(" } ");
140 out(" public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) { ");
141 out(" RegistryKey key = new RegistryKey(name, family); ");
142 out(" return LazyInitialization.options.get(key); ");
143 out(" } ");
144 out("} ");
145
146 return 0;
147 }