/* gethostbyname.c
 *
 * Originally by Greg Wooledge <greg@wooledge.org>, http://wooledge.org/~greg/
 *
 * This program is in the public domain.  It may be copied or used without
 * any restrictions.
 */

#include <stdio.h>
#include <netdb.h>
#include <string.h>

int main(int argc, char *argv[])
{
	struct hostent *h;
	char **s;

	if(argc != 2)
	{
		fprintf(stderr, "usage: gethostbyname hostname\n");
		return 1;
	}

	h = gethostbyname(argv[1]);
	if(!h)
	{
		fprintf(stderr, "gethostbyname(%s) failed: ", argv[1]);
		herror("");
		return 2;
	}

	s = h->h_addr_list;
	while (*s)
	{
		char addr[80];
		snprintf(addr, sizeof addr, "%u.%u.%u.%u",
			(unsigned char)(*s)[0],
			(unsigned char)(*s)[1],
			(unsigned char)(*s)[2],
			(unsigned char)(*s)[3]);
		puts(addr);
		s++;
	}
	return 0;
}