rndstats.arc4_reads++;
arc4_getbyte (register struct arc4_stream *as){	register u_char si, sj;	as->i = (as->i + 1) & 0xff;	si = as->s[as->i];	as->j = (as->j + si) & 0xff;	sj = as->s[as->j];	as->s[as->i] = sj;	as->s[as->j] = si;	return (as->s[(si + sj) & 0xff]);}