xiaoxiang781216 commented on code in PR #3304: URL: https://github.com/apache/nuttx-apps/pull/3304#discussion_r2678501900
########## netutils/netlib/netlib_checkhttpconnectivity.c: ########## @@ -0,0 +1,199 @@ +/**************************************************************************** + * apps/netutils/netlib/netlib_checkhttpconnectivity.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 <nuttx/config.h> + +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <stdint.h> +#include <stdio.h> +#include <stdbool.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <debug.h> + +#ifdef CONFIG_LIBC_NETDB +# include <netdb.h> +#endif + +#include <arpa/inet.h> +#include <netinet/in.h> + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: httpget_gethostip + * + * Description: + * Check the http status code + * + * Parameters: + * hostname The host name to use in the nslookup. + * dest The location to return the IPv4 address. + * + * Return: + * 0 on success; a nagtive on failure. + * + ****************************************************************************/ + +static int httpget_gethostip(FAR const char *hostname, + FAR struct in_addr *dest) +{ +#ifdef CONFIG_LIBC_NETDB + /* Netdb DNS client support is enabled */ + + FAR struct addrinfo hint; + FAR struct addrinfo *info; + FAR struct sockaddr_in *addr; + + memset(&hint, 0, sizeof(hint)); + hint.ai_family = AF_INET; + + if (getaddrinfo(hostname, NULL, &hint, &info) != OK) + { + return -errno; Review Comment: @cederom the usage is right, please read https://man7.org/linux/man-pages/man3/errno.3.html, to understand when errno get set. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
