netd: Initial skelaton for netd

Signed-off-by: San Mehat <san@google.com>
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..98e1c3f
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2008 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <fcntl.h>
+#include <dirent.h>
+
+#define LOG_TAG "Netd"
+
+#include "cutils/log.h"
+
+#include "CommandListener.h"
+#include "NetlinkManager.h"
+
+static void coldboot(const char *path);
+
+int main() {
+
+    CommandListener *cl;
+    NetlinkManager *nm;
+
+    LOGI("Netd 1.0 starting");
+
+    if (!(nm = NetlinkManager::Instance())) {
+        LOGE("Unable to create NetlinkManager");
+        exit(1);
+    };
+
+
+    cl = new CommandListener();
+    nm->setBroadcaster((SocketListener *) cl);
+
+    if (nm->start()) {
+        LOGE("Unable to start NetlinkManager (%s)", strerror(errno));
+        exit(1);
+    }
+
+    /*
+     * Now that we're up, we can respond to commands
+     */
+    if (cl->startListener()) {
+        LOGE("Unable to start CommandListener (%s)", strerror(errno));
+        exit(1);
+    }
+
+    // Eventually we'll become the monitoring thread
+    while(1) {
+        sleep(1000);
+    }
+
+    LOGI("Netd exiting");
+    exit(0);
+}
+
+static void do_coldboot(DIR *d, int lvl)
+{
+    struct dirent *de;
+    int dfd, fd;
+
+    dfd = dirfd(d);
+
+    fd = openat(dfd, "uevent", O_WRONLY);
+    if(fd >= 0) {
+        write(fd, "add\n", 4);
+        close(fd);
+    }
+
+    while((de = readdir(d))) {
+        DIR *d2;
+
+        if (de->d_name[0] == '.')
+            continue;
+
+        if (de->d_type != DT_DIR && lvl > 0)
+            continue;
+
+        fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY);
+        if(fd < 0)
+            continue;
+
+        d2 = fdopendir(fd);
+        if(d2 == 0)
+            close(fd);
+        else {
+            do_coldboot(d2, lvl + 1);
+            closedir(d2);
+        }
+    }
+}
+
+static void coldboot(const char *path)
+{
+    DIR *d = opendir(path);
+    if(d) {
+        do_coldboot(d, 0);
+        closedir(d);
+    }
+}