2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __CUTILS_SOCKETS_H
18 #define __CUTILS_SOCKETS_H
26 typedef int socklen_t;
27 #elif HAVE_SYS_SOCKET_H
28 #include <sys/socket.h>
31 #define ANDROID_SOCKET_ENV_PREFIX "ANDROID_SOCKET_"
32 #define ANDROID_SOCKET_DIR "/dev/socket"
39 * android_get_control_socket - simple helper function to get the file
40 * descriptor of our init-managed Unix domain socket. `name' is the name of the
41 * socket, as given in init.rc. Returns -1 on error.
43 * This is inline and not in libcutils proper because we want to use this in
44 * third-party daemons with minimal modification.
46 static inline int android_get_control_socket(const char *name)
48 char key[64] = ANDROID_SOCKET_ENV_PREFIX;
52 /* build our environment variable, counting cycles like a wolf ... */
54 strlcpy(key + sizeof(ANDROID_SOCKET_ENV_PREFIX) - 1,
56 sizeof(key) - sizeof(ANDROID_SOCKET_ENV_PREFIX));
57 #else /* for the host, which may lack the almightly strncpy ... */
58 strncpy(key + sizeof(ANDROID_SOCKET_ENV_PREFIX) - 1,
60 sizeof(key) - sizeof(ANDROID_SOCKET_ENV_PREFIX));
61 key[sizeof(key)-1] = '\0';
69 fd = strtol(val, NULL, 10);
77 * See also android.os.LocalSocketAddress.Namespace
79 // Linux "abstract" (non-filesystem) namespace
80 #define ANDROID_SOCKET_NAMESPACE_ABSTRACT 0
81 // Android "reserved" (/dev/socket) namespace
82 #define ANDROID_SOCKET_NAMESPACE_RESERVED 1
83 // Normal filesystem namespace
84 #define ANDROID_SOCKET_NAMESPACE_FILESYSTEM 2
86 extern int socket_loopback_client(int port, int type);
87 extern int socket_network_client(const char *host, int port, int type);
88 extern int socket_loopback_server(int port, int type);
89 extern int socket_local_server(const char *name, int namespaceId, int type);
90 extern int socket_local_server_bind(int s, const char *name, int namespaceId);
91 extern int socket_local_client_connect(int fd,
92 const char *name, int namespaceId, int type);
93 extern int socket_local_client(const char *name, int namespaceId, int type);
94 extern int socket_inaddr_any_server(int port, int type);
100 #endif /* __CUTILS_SOCKETS_H */