/* inetntoa.c: *  * Example using inet_ntoa(3) : */#include <stdio.h>#include <unistd.h>#include <stdlib.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>intmain(int argc,char **argv) {    struct sockaddr_in adr_inet;/* AF_INET */    int len_inet;               /* length  */    /*     * Establish address (pretend we got     * this address from a connecting     * client) :     */    memset(&adr_inet,0,sizeof adr_inet);    adr_inet.sin_family = AF_INET;    adr_inet.sin_port = htons(9000);    if ( !inet_aton("127.0.0.23",              &adr_inet.sin_addr) )        puts("bad address.");    len_inet = sizeof adr_inet;    /*     * Demonstrate use of inet_ntoa(3) :     */    printf("The IP Address is %s\n",        inet_ntoa(adr_inet.sin_addr));    return 0;}