/**************************************************************************** * apps/system/dhcpc/renew_main.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include "netutils/netlib.h" /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * dhcpc_showusage ****************************************************************************/ static void dhcpc_showusage(FAR const char *progname, int exitcode) { fprintf(stderr, "Usage: %s \n", progname); exit(exitcode); } /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * renew_main ****************************************************************************/ int main(int argc, FAR char *argv[]) { int ret; /* One and only one argument is expected: The network device name. */ if (argc != 2) { fprintf(stderr, "ERROR: Invalid number of arguments\n"); dhcpc_showusage(argv[0], EXIT_FAILURE); } ret = netlib_obtain_ipv4addr(argv[1]); if (ret < 0) { fprintf(stderr, "ERROR: netlib_obtain_ipv4addr() failed\n"); return EXIT_FAILURE; } return EXIT_SUCCESS; }