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#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
int main(int argc,char *argv[]) {
struct sockaddr_in6 sa6;
unsigned int sl=sizeof(sa6);
char h[NI_MAXHOST], s[NI_MAXSERV];
if(getpeername(argc>1?atoi(argv[1]):0,(struct sockaddr *)&sa6,&sl) == -1) return 1;
if(getnameinfo((struct sockaddr *)&sa6,sl,h,sizeof(h),s,sizeof(s),NI_NUMERICHOST|NI_NUMERICSERV)) return 2;
puts(h);
puts(s);
return 0;
}
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