// $Id: dupseek.c,v 1.1 2004-12-09 22:24:04+09 kaiya Exp $

#include <stdio.h>
#include <unistd.h>

main(){
int newfd;
char buf[100];
	if((newfd=dup(0))<0) exit(1); // dup fail.	
	fprintf(stderr, "%d is duplicated.\n", newfd); 
	if((int)lseek(newfd, 200, SEEK_CUR)<0) exit(2); // seek fail.
	read(0, buf, 100);
	write(1, buf, 100);
	write(1, "\n", 1);
}