1 files changed, 100 insertions, 0 deletions
diff --git a/include/cutils/sockets.h b/include/cutils/sockets.h
new file mode 100644
index 0000000..aa8682e
--- /dev/null
+++ b/include/cutils/sockets.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CUTILS_SOCKETS_H
+#define __CUTILS_SOCKETS_H
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_WINSOCK
+#include <winsock2.h>
+typedef int  socklen_t;
+#elif HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#define ANDROID_SOCKET_ENV_PREFIX	"ANDROID_SOCKET_"
+#define ANDROID_SOCKET_DIR		"/dev/socket"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * android_get_control_socket - simple helper function to get the file
+ * descriptor of our init-managed Unix domain socket. `name' is the name of the
+ * socket, as given in init.rc. Returns -1 on error.
+ *
+ * This is inline and not in libcutils proper because we want to use this in
+ * third-party daemons with minimal modification.
+ */
+static inline int android_get_control_socket(const char *name)
+{
+	char key[64] = ANDROID_SOCKET_ENV_PREFIX;
+	const char *val;
+	int fd;
+
+	/* build our environment variable, counting cycles like a wolf ... */
+#if HAVE_STRLCPY
+	strlcpy(key + sizeof(ANDROID_SOCKET_ENV_PREFIX) - 1,
+		name,
+		sizeof(key) - sizeof(ANDROID_SOCKET_ENV_PREFIX));
+#else	/* for the host, which may lack the almightly strncpy ... */
+	strncpy(key + sizeof(ANDROID_SOCKET_ENV_PREFIX) - 1,
+		name,
+		sizeof(key) - sizeof(ANDROID_SOCKET_ENV_PREFIX));
+	key[sizeof(key)-1] = '\0';
+#endif
+
+	val = getenv(key);
+	if (!val)
+		return -1;
+
+	errno = 0;
+	fd = strtol(val, NULL, 10);
+	if (errno)
+		return -1;
+
+	return fd;
+}
+
+/*
+ * See also android.os.LocalSocketAddress.Namespace
+ */
+// Linux "abstract" (non-filesystem) namespace
+#define ANDROID_SOCKET_NAMESPACE_ABSTRACT 0
+// Android "reserved" (/dev/socket) namespace
+#define ANDROID_SOCKET_NAMESPACE_RESERVED 1
+// Normal filesystem namespace
+#define ANDROID_SOCKET_NAMESPACE_FILESYSTEM 2
+
+extern int socket_loopback_client(int port, int type);
+extern int socket_network_client(const char *host, int port, int type);
+extern int socket_loopback_server(int port, int type);
+extern int socket_local_server(const char *name, int namespaceId, int type);
+extern int socket_local_server_bind(int s, const char *name, int namespaceId);
+extern int socket_local_client_connect(int fd, 
+        const char *name, int namespaceId, int type);
+extern int socket_local_client(const char *name, int namespaceId, int type);
+extern int socket_inaddr_any_server(int port, int type);
+    
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_SOCKETS_H */