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#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#define MAXLINE 1024
int main(int argc, char **argv)
{
struct addrinfo *p,*listp, hints;
char buf[MAXLINE];
int rc, flags;
if(argc != 2){
fprintf(stderr,"usage: %s <domain niane>\n", argv[0]);
exit(0);
}
//Get a list of addrinfo records
memset(&hints,0,sizeof(struct addrinfo));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
if((rc=getaddrinfo(argv[1],NULL,&hints,&listp))!=0){
//Get a list of addrinfo records
memset(&hints,0,sizeof(struct addrinfo));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
if((rc=getaddrinfo(argv[1],NULL,&hints,&listp))!=0){
fprintf(stderr, "getaddrinfo error: %s\n",gai_strerror(rc));
exit(1);
}
// Walk the list and display each IP address
flags = NI_NUMERICHOST;
for(p=listp;p;p=p->ai_next){
getnameinfo(p->ai_addr,p->ai_addrlen, buf, MAXLINE,NULL,0,flags);
printf("%s\n",buf);
}
freeaddrinfo(listp);
exit(0);
}
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