// io.c: minimal cat version (from Kernighan and Pike) 
/***************************************************
 * OS Class, Fall 2007, Chee Yap
 *
 * This program will echo whatever you type.
 * To terminate, type control-D
 ***************************************************/

#define SIZE 512	// arbitrary

int main() {
	char buf[SIZE];
	int n;

	while ((n = read(0, buf, sizeof buf)) > 0)
		write( 1, buf, n);
	return(0);
}