本代码的编译环境为MAC,系统版本为10.11.6:
#include <string.h> #include <netdb.h> #include <stdio.h> #include <arpa/inet.h> int main(int argc, char *argv[]) { char host[] = "www.baidu.com"; struct hostent *ht = NULL; ht = gethostbyname(host); if(ht) { printf("type:%s ", ht->h_addrtype == AF_INET ? "AF_INET" : "AF_INET6"); printf("length:%d ",ht->h_length); for(int i=0; ;i++) { if(ht->h_addr_list[i]!=NULL) { printf("IP Address :%s ",inet_ntoa(*((struct in_addr *)ht->h_addr_list[i]))); }else{ break; } } for(int j=0; ;j++) { if(ht->h_aliases[j]!=NULL) { printf("IP:%s ",ht->h_aliases[j]); }else{ break; } } } return 0; }
EOF