#include <stdio.h>
#include <time.h>
#include <sys/stat.h>

int main(int argc, char **argv)
{
	struct stat	stat_buf;
	time_t		now = time(NULL);

	if (argc != 3) {
		fprintf(stderr, "usage: path1 path2\n");
		exit(1);
	}

	if (rename(argv[1], argv[2]) < 0) {
		perror("rename");
		exit(1);
	}

	if (stat(argv[2], &stat_buf) < 0) {
		perror("stat");
		exit(1);
	}

	if (stat_buf.st_mtime < now - 60*60) {
		fprintf(stderr, "Bad karma: mtime=%u now-60*60=%u\n",
			stat_buf.st_mtime, now - 60*60);
		exit(1);
	} else {
		fprintf(stderr, "OK: mtime=%u now-60*60=%u\n",
			stat_buf.st_mtime, now - 60*60);
	}
	return 0;
}