#include <stdio.h>

#define TERM_WIDTH 80

void draw_progress(FILE *fp, unsigned long pos, unsigned long max)
{
	unsigned long head, i;

	if (pos > max)
		pos = max;

	head = (TERM_WIDTH - 2) * pos / max;

	fputc('[', fp);

	for (i = 0; i < head; ++i)
		fputc('#', fp);

	for (; i < (TERM_WIDTH - 2); ++i)
		fputc(' ', fp);

	fputc(']', fp);

	for (i = 0; i < TERM_WIDTH; ++i)
		fputc('\b', fp);
}