/*
 * Program to echo text from stdin to stdout and print number of characters 
 * copied.
 *
 * Prompt and number of characters go to stderr rather than stdout so we
 * could use this as a file-copy utility.
 */
#include <stdio.h>

int main(void) {
	fprintf(stderr, "enter text, control-D to end\n");
	int ch;
	int count = 0;
	while ((ch = getchar()) != EOF) {
		putchar(ch);
		count += 1;
	}
	fprintf(stderr, "%d characters echoed\n", count);
	return 0;
}