strndup(str, n)
{
	local i = 0;
	local out;
	local size;

	size = strlen(str);
	if (size > n)
		size = n;
	out = galloc(size + 1);
	if (out == 0)
		return (0);
	[out + size] = 0;
	strncpy(out, str, size);
	return (out);
}