printf("Content-Length: %ji\r\n", (intmax_t)sb.st_size);
printf("Last-Modified: %s\r\n", fmthttpdate(sb.st_mtime));
printf("Date: %s\r\n", fmthttpdate(time(NULL)));
printf("\r\n");
fflush(stdout);
printf("Content-Length: %ji\r\n", (intmax_t)sb.st_size);
printf("Last-Modified: %s\r\n", fmthttpdate(sb.st_mtime));
printf("Date: %s\r\n", fmthttpdate(time(NULL)));
printf("\r\n");
fflush(stdout);