/* * Copyright (C) 2012 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 <cutils/uevent.h> #include <stdio.h> #define UEVENT_MSG_LEN 1024 int main(int argc, char *argv[]) { int device_fd; char msg[UEVENT_MSG_LEN+2]; int n; int i; device_fd = uevent_open_socket(64*1024, true); if(device_fd < 0) return -1; while ((n = uevent_kernel_multicast_recv(device_fd, msg, UEVENT_MSG_LEN)) > 0) { msg[n] = '\0'; msg[n+1] = '\0'; for (i = 0; i < n; i++) if (msg[i] == '\0') msg[i] = ' '; printf("%s\n", msg); } return 0; }